U.S. patent application number 15/981098 was filed with the patent office on 2019-02-07 for bi-directional optical module and transparent display apparatus using the same.
The applicant listed for this patent is AU OPTRONICS CORPORATION. Invention is credited to Cheng-Chieh CHANG, Ting-Wei GUO, Ho-Cheng LEE, Chen-Chi LIN, Pin-Miao LIU, Wen-Wei YANG.
Application Number | 20190043842 15/981098 |
Document ID | / |
Family ID | 61137386 |
Filed Date | 2019-02-07 |
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United States Patent
Application |
20190043842 |
Kind Code |
A1 |
GUO; Ting-Wei ; et
al. |
February 7, 2019 |
BI-DIRECTIONAL OPTICAL MODULE AND TRANSPARENT DISPLAY APPARATUS
USING THE SAME
Abstract
A bi-directional optical module includes a substrate, at least
one first light-emitting diode (LED), and at least one second LED.
The first LED is disposed on a surface of the substrate. The first
LED has a first reflection surface and a first light-outlet surface
that are opposite to each other, and the first light-outlet surface
is away from the substrate relative to the first reflection
surface. The second LED is disposed on the same surface of the
substrate. The second LED has a second reflection surface and a
second light-outlet surface that are opposite to each other, and
the second light-outlet surface is close to the substrate relative
to the second reflection surface. The substrate has at least one
light-transparent area that is not occupied by the first LED and
the second LED.
Inventors: |
GUO; Ting-Wei; (Hsin-chu,
TW) ; LIN; Chen-Chi; (Hsin-chu, TW) ; LIU;
Pin-Miao; (Hsin-chu, TW) ; CHANG; Cheng-Chieh;
(Hsin-chu, TW) ; LEE; Ho-Cheng; (Hsin-chu, TW)
; YANG; Wen-Wei; (Hsin-chu, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
AU OPTRONICS CORPORATION |
Hsin-chu |
|
TW |
|
|
Family ID: |
61137386 |
Appl. No.: |
15/981098 |
Filed: |
May 16, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01L 33/38 20130101;
H01L 33/42 20130101; H01L 51/5275 20130101; G09G 2300/0861
20130101; H01L 25/167 20130101; H01L 33/58 20130101; H01L 25/165
20130101; H01L 27/326 20130101; H01L 33/405 20130101; H01L
2251/5323 20130101; G09G 2300/0452 20130101; H01L 33/60 20130101;
H01L 25/0753 20130101; G09G 3/3233 20130101; G09G 2310/0262
20130101; H01L 27/32 20130101; H01L 27/3218 20130101; G09G 3/32
20130101; H01L 33/62 20130101; G09G 2310/0251 20130101; H01L 33/46
20130101 |
International
Class: |
H01L 25/075 20060101
H01L025/075; H01L 33/60 20060101 H01L033/60; H01L 33/38 20060101
H01L033/38; H01L 33/58 20060101 H01L033/58; H01L 33/62 20060101
H01L033/62; H01L 25/16 20060101 H01L025/16 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 4, 2017 |
TW |
106126436 |
Claims
1. A bi-directional optical module, comprising: a substrate; at
least one first light-emitting diode (LED), disposed on a surface
of the substrate, wherein the first LED has a first reflection
surface and a first light-outlet surface that are opposite to each
other, and the first light-outlet surface is away from the
substrate relative to the first reflection surface; and at least
one second LED, disposed on the surface of the substrate, wherein
the second LED has a second reflection surface and a second
light-outlet surface that are opposite to each other, and the
second light-outlet surface is close to the substrate relative to
the second reflection surface, wherein the substrate has at least
one light-transparent area that is not occupied by the first LED
and the second LED.
2. The bi-directional optical module according to claim 1, wherein
the first LED comprises: a first electrode structure, disposed on
the first light-outlet surface of the first LED, wherein there is a
first electrode contact area between the first electrode structure
and the first light-outlet surface of the first LED; and a second
electrode structure, disposed on the first light-outlet surface of
the first LED, wherein there is a second electrode contact area
between the second electrode structure and the first light-outlet
surface of the first LED, wherein a sum of the first electrode
contact area and the second electrode contact area is less than an
area of the first light-outlet surface of the first LED.
3. The bi-directional optical module according to claim 1, wherein
the first LED comprises: a first electrode structure, disposed on
the first light-outlet surface of the first LED, wherein there is a
first electrode contact area between the first electrode structure
and the first light-outlet surface of the first LED; and a second
electrode structure, disposed on the first reflection surface of
the first LED, wherein there is a second electrode contact area
between the second electrode structure and the first reflection
surface of the first LED, wherein the first electrode contact area
is less than the second electrode contact area.
4. The bi-directional optical module according to claim 1, wherein
at least one of the second LEDs comprises: a third electrode
structure, disposed on the second reflection surface of the second
LED, wherein there is a third electrode contact area between the
third electrode structure and the second reflection surface of the
second LED; and a fourth electrode structure, disposed on the
second reflection surface of the second LED, wherein there is a
fourth electrode contact area between the fourth electrode
structure and the second reflection surface of the second LED,
wherein a sum of the third electrode contact area and the fourth
electrode contact area is essentially equal to an area of the
second reflection surface of the second LED.
5. The bi-directional optical module according to claim 1, wherein
the second LED comprises: a third electrode structure, disposed on
the second reflection surface of the second LED, wherein there is a
third electrode contact area between the third electrode structure
and the second reflection surface of the second LED; and a fourth
electrode structure, disposed on the second light-outlet surface of
the second LED, wherein there is a fourth electrode contact area
between the fourth electrode structure and the second light-outlet
surface of the second LED, wherein the third electrode contact area
is greater than the fourth electrode contact area.
6. The bi-directional optical module according to claim 1, further
comprising: a light guiding structure, disposed on the first
LED.
7. The bi-directional optical module according to claim 1, wherein
the at least one first LED is arranged in a row in a direction, the
at least one second LED is arranged in another row in the
direction, the row of the at least one first LED and the row of the
at least one second LED is arranged side by side, and are separated
by the light-transparent area.
8. The bi-directional optical module according to claim 1, wherein
the at least one first LED is arranged in a first row in a
direction, the at least one second LED and the at least one
light-transparent area is arranged in a second row in the direction
in a staggered manner, and the first row and the second row are
arranged side by side.
9. The bi-directional optical module according to claim 1, wherein
the at least one second LED, the at least one first LED and may be
classified into at least onered LED, at leat one green first LED,
and at least one blue first LED, wherein one of the second LEDs,
one of the red LEDs, one of the green first LEDs, and one of the
blue first LEDs are arranged in a direction and jointly form a
unit, and a plurality of the units are repetitively arranged in the
direction.
10. The bi-directional optical module according to claim 1, wherein
the at least one first LED, the at least one second LED, and the at
least one light-transparent area, wherein the at least one first
LED, the at least one second LEDs, and the at least one
light-transparent areas are arranged in a staggered manner.
11. The bi-directional optical module according to claim 1, wherein
at least three of the first LEDs, at least one of the second LEDs,
and at least one of the light-transparent areas jointly form a
first-type pixel unit, and a plurality of the first-type pixel
units are repetitively arranged in a central area of the substrate,
wherein at least three of the first LEDs, at least one of the
second LEDs, and at least one of the light-transparent areas
jointly form a second-type pixel unit, and a plurality of the
second-type pixel units are repetitively arranged in a peripheral
area of the substrate, wherein a quantity of the second LEDs of the
first-type pixel unit is different from a quantity of the second
LEDs of the second-type pixel unit.
12. The bi-directional optical module according to claim 1, wherein
at least three of the first LEDs, at least one of the second LEDs,
and at least one of the light-transparent areas jointly form a
first-type pixel unit, and a plurality of the first-type pixel
units are repetitively arranged in a central area of the substrate,
wherein at least three of the first LEDs, at least one of the
second LEDs, and at least one of the light-transparent areas
jointly form a second-type pixel unit, and a plurality of the
second-type pixel units are repetitively arranged in a peripheral
area of the substrate, wherein a size of the light-transparent area
of the first-type pixel unit is different from a size of the
light-transparent area of the second-type pixel unit.
13. A transparent display apparatus, comprising: the bi-directional
optical module according to claim 1; and at least one pixel
circuit, electrically coupled to the first light-emitting diode
(LED) of the bi-directional optical module, wherein the pixel
circuit comprises: a first switch transistor, wherein the first
switch transistor has a first gate electrode; and at least one
second switch transistor, electrically coupled to the second LED of
the bi-directional optical module, wherein the second switch
transistor comprises a second gate electrode, and the second gate
electrode of the second switch transistor and the first gate
electrode of the first switch transistor are electrically coupled
to a same control signal source.
14. The transparent display apparatus according to claim 13,
wherein a perpendicular projection of the pixel circuit onto the
substrate of the bi-directional optical module is separated from
the light-transparent area of the bi-directional optical
module.
15. The transparent display apparatus according to claim 13,
wherein the second switch transistor further comprises an
electrode, the pixel circuit further comprises a circuit junction,
and the electrode of the second switch transistor and the circuit
junction of the pixel circuit are electrically coupled to a same
high potential voltage supply source.
16. The transparent display apparatus according to claim 13,
wherein the pixel circuit comprises a circuit junction, the circuit
junction is electrically coupled to a high potential voltage supply
source, and two electrodes of the second LED of the bi-directional
optical module are respectively electrically coupled to the second
switch transistor and the high potential voltage supply source.
17. The transparent display apparatus according to claim 13,
wherein the second switch transistor of the bi-directional optical
module comprises an electrode, the electrode is electrically
coupled to a low potential voltage supply source, and two
electrodes of the first LED of the bi-directional optical module
are respectively electrically coupled to the pixel circuit and the
low potential voltage supply source.
18. The transparent display apparatus according to claim 13,
wherein two electrodes of the first LED of the bi-directional
optical module are respectively electrically coupled to the pixel
circuit and a low potential voltage supply source, and two
electrodes of the second LED of the bi-directional optical module
are respectively electrically coupled to the second switch
transistor and the low potential voltage supply source.
19. The transparent display apparatus according to claim 13,
wherein the substrate comprises a central area, a peripheral area,
and a wiring area, the peripheral area surrounds the central area,
and the peripheral area is located between the central area and the
wiring area, wherein two electrodes of the second LED are
respectively electrically coupled to the second switch transistor
and a potential voltage supply source, and the second switch
transistor is located within the wiring area.
Description
CROSS-REFERENCE TO RELATED PATENT APPLICATION
[0001] This non-provisional application claims priority to and the
benefit of, pursuant to 35 U.S.C. .sctn. 119(a), patent application
Ser. No. 106126436 filed in Taiwan on Aug. 4, 2017. The disclosure
of the above application is incorporated herein in its entirety by
reference.
[0002] Some references, which may include patents, patent
applications and various publications, are cited and discussed in
the description of this disclosure. The citation and/or discussion
of such references is provided merely to clarify the description of
the present disclosure and is not an admission that any such
reference is "prior art" to the disclosure described herein. All
references cited and discussed in this specification are
incorporated herein by reference in their entireties and to the
same extent as if each reference were individually incorporated by
reference.
FIELD
[0003] The present disclosure relates to a bi-directional optical
module and a transparent display apparatus using the same.
BACKGROUND
[0004] The background description provided herein is for the
purpose of generally presenting the context of the disclosure. Work
of the presently named inventors, to the extent it is described in
this background section, as well as aspects of the description that
may not otherwise qualify as prior art at the time of filing, are
neither expressly nor impliedly admitted as prior art against the
present disclosure.
[0005] In recent years, with the vigorous development of display
technologies, increasing importance is also attached to transparent
display apparatuses. Generally, a transparent display apparatus can
provide a user with a displayed image, and the user can
perspectively view, through the transparent display apparatus, a
displayed article or a sight that is behind the transparent display
apparatus. That is, in addition to an original display function,
the transparent display apparatus also has a feature of displaying
the background of the picture, and may be widely applied to a
large-scale commercial exhibition, a shop window, or a display
window of a commodity showcase, to both display an advertisement
image and display a commodity. In tradition, a transparent display
apparatus includes a liquid panel and a backlight module (such as a
light box), and the backlight module may be disposed behind or on a
side of the liquid panel, to provide the liquid panel with a light
source. However, some light of the backlight module is also emitted
to a displayed article that is behind the transparent display
panel, causing distortion of the colored light, color temperature,
or tone of the displayed article, thereby reducing the viewing
quality of the displayed article.
SUMMARY
[0006] The present disclosure provides a bi-directional optical
module and a transparent display apparatus that uses the
bi-directional optical module. The bi-directional optical module
can improve viewing quality of a displayed article that is behind
the transparent display apparatus, and can increase penetration of
the transparent display apparatus.
[0007] According to some implementations of the present disclosure,
the bi-directional optical module includes a substrate, at least
one first light-emitting diode (LED), and at least one second LED.
The first LED is disposed on a surface of the substrate. The first
LED has a first reflection surface and a first light-outlet surface
that are opposite to each other, and the first light-outlet surface
is away from the substrate relative to the first reflection
surface. The second LED is disposed on the same surface of the
substrate. The second LED has a second reflection surface and a
second light-outlet surface that are opposite to each other, and
the second light-outlet surface is close to the substrate relative
to the second reflection surface. The substrate has at least one
light-transparent area that is not occupied by the first LED and
the second LED.
[0008] According to some implementations of the present disclosure,
the transparent display apparatus includes the bi-directional
optical module, at least one pixel circuit, and at least one second
switch transistor. The pixel circuit is electrically coupled to the
first LED of the bi-directional optical module. The pixel circuit
includes a first switch transistor, and the first switch transistor
has a first gate electrode. The second switch transistor is
electrically coupled to the second LED of the bi-directional
optical module. The second switch transistor includes a second gate
electrode, and the second gate electrode of the second switch
transistor and the first gate electrode of the first switch
transistor are electrically coupled to a same control signal
source.
[0009] These and other aspects of the present disclosure will
become apparent from the following description of the preferred
embodiment taken in conjunction with the following drawings,
although variations and modifications therein may be effected
without departing from the spirit and scope of the novel concepts
of the disclosure.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Multiple modes of the present disclosure may be understood
by reading the following detailed descriptions with reference to
the corresponding drawings. It should be noted that, multiple
features in the drawings are not drawn to actual scale according to
standards in the industry. Actually, sizes of the features may be
randomly increased or decreased, to facilitate clarity of
discussion.
[0011] FIG. 1 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0012] FIG. 2 is a schematic sectional view along a line segment
2-2 of FIG. 1;
[0013] FIG. 3 is a schematic sectional view of a bi-directional
optical module according to some implementations of the present
disclosure;
[0014] FIG. 4 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0015] FIG. 5 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0016] FIG. 6 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0017] FIG. 7 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0018] FIG. 8 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0019] FIG. 9 is a schematic top view of a bi-directional optical
module according to some implementations of the present
disclosure;
[0020] FIG. 10A is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure;
[0021] FIG. 10B is an equivalent circuit diagram of the local
circuit of FIG. 10A according to some implementations of the
present disclosure;
[0022] FIG. 11 is a schematic sectional view of a structure that is
obtained by configuring the circuit of the transparent display
apparatus of FIG. 10A;
[0023] FIG. 12A is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure;
[0024] FIG. 12B is an equivalent circuit diagram of the local
circuit of FIG. 12A according to some implementations of the
present disclosure;
[0025] FIG. 13 is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure;
[0026] FIG. 14 is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure;
[0027] FIG. 15 is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure;
[0028] FIG. 16 is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure; and
[0029] FIG. 17 is a schematic configuration diagram of a local
circuit of a transparent display apparatus according to some
implementations of the present disclosure.
DETAILED DESCRIPTION
[0030] The following clearly describes the spirit of the present
disclosure by using figures and detailed descriptions. After an
embodiment of the present disclosure is understood, any variations
and modifications made by a person of ordinary skill in the art by
using the technologies learned from the present disclosure fall
within the spirit and scope of the present disclosure.
[0031] Referring to FIG. 1, FIG. 1 is a schematic top view of a
transparent display apparatus 100A according to some
implementations of the present disclosure. The transparent display
apparatus 100A includes a bi-directional optical module 101. The
transparent display apparatus 100A can use the bi-directional
optical module 101 to achieve an effect of simultaneously
displaying an image and presenting a commodity. The presenting a
commodity refers to spotlighting the commodity, so that the
commodity can gain attention. The bi-directional optical module
101A includes a substrate 110, a first LED 120, and a second LED
130. The substrate 110 has a display area D, a lighting area W, and
a light-transparent area T. Specifically, the substrate 110 has the
display area D occupied by the first LED 120, the lighting area W
occupied by the second LED 130, and the light-transparent area T
not occupied by the first LED 120 and the second LED 130. The
light-transparent area T may be formed by multiple
light-transparent portions T'. In addition, the display area D, the
light-transparent area T, and the lighting area W may be
sequentially arranged or randomly arranged on the substrate 110.
The substrate 110 may be a transparent substrate, a rigid
substrate, or a flexible substrate, such as glass, tempered glass,
polycarbonate (PC), polyethylene terephthalate (PET), or other
cyclic olefin copolymer. However, the present disclosure is not
limited to this.
[0032] The first LED 120 may be a plurality of first LEDs 120, the
second LED 130 may be a plurality of second LEDs 130, and the
light-transparent area T may also be a plurality of
light-transparent areas T. In addition, the first LEDs 120 and the
second LEDs 130 may form multiple types of sub-pixel areas in
different arrangement manners and to different scales. For example,
in the configuration manner shown in FIG. 1, the first LEDs 120 are
arranged in multiple rows in a configuration direction A, and the
second LEDs 130 are also arranged in multiple rows in the
configuration direction A. The first LEDs 120 and the second LEDs
130 that are in some rows may be separated by the light-transparent
area T. That is, the first LEDs 120 and the second LEDs 130 that
are in the some rows are disposed on two opposite sides of the
light-transparent area T.
[0033] Referring to FIG. 2, FIG. 2 is a schematic sectional view
along a line segment 2-2 of FIG. 1. The first LED 120 is located in
the display area D of the substrate 110, and is disposed on an
upper surface 112 of the substrate 110. The first LED 120 has a
first reflection surface 122 and a first light-outlet surface 124
that are opposite to each other, and the first light-outlet surface
124 is away from the substrate 110 relative to the first reflection
surface 122.
[0034] The first LED 120 may be configured to emit a first light
beam L1. The first light beam L1 may roughly travel in a first
direction D1, and the first direction D1 is a direction in which
the first reflection surface 122 and the first light-outlet surface
124 are arranged. In addition, if the first LED 120 generates a
light beam that travels in a direction different from the first
direction D1, and when the light beam arrives at the first
reflection surface 122 of the first LED 120, the light beam may be
reflected by the first reflection surface 122 and change direction,
the light beam may travel in the first direction D1 and penetrate
the first light-outlet surface 124 to leave the first LED 120. That
is, when the first LED 120 generates a light beam that travels
towards the first reflection surface 122, the light beam does not
penetrate the first reflection surface 122, and the light beam
finally leaves the first LED 120 in a manner of traveling in the
first direction D1.
[0035] The second LED 130 is located in the lighting area W of the
substrate 110, and is disposed on the upper surface 112 of the
substrate 110. The second LED 130 has a second reflection surface
132 and a second light-outlet surface 134 that are opposite to each
other, and the second light-outlet surface 134 is close to the
substrate 110 relative to the second reflection surface 132.
[0036] The second LED 130 may be configured to emit a second light
beam L2. The second light beam L2 may roughly travel in a second
direction D2. The second direction D2 is a direction in which the
second reflection surface 132 and the second light-outlet surface
134 are arranged, and the first direction D1 and the second
direction D2 may be a pair of directions opposite to each other.
Similarly, when the second LED 130 generates a light beam that
travels in a direction different from the second direction D2, and
when the light beam arrives at the second reflection surface 132 of
the second LED 130, the light beam may be reflected by the second
reflection surface 132 and change direction, the light beam may
travel in the second direction D2 and penetrate the second
light-outlet surface 134 to leave the second LED 130. That is, when
the second LED 130 generates a light beam that travels towards the
second reflection surface 132, the light beam generally does not
penetrate the second reflection surface 132, and the light beam
finally leaves the second LED 130 in a manner of traveling in the
second direction D2.
[0037] By means of the foregoing configuration, the first light
beam L1 emitted by the first LED 120 may leave the first LED 120 in
the first direction D1, and the second light beam L2 emitted by the
second LED 130 may leave the second LED 130 in the second direction
D2. However, the first direction D1 and the second direction D2 are
opposite to each other, and therefore the transparent display
apparatus 100A may use the bi-directional optical module 101A to
implement bi-directional light emission.
[0038] In addition, the first LED 120 may include a first anode
structure 126 and a first cathode structure 128. The first anode
structure 126 is disposed on the first light-outlet surface 124 of
the first LED 120, and there is a first anode contact area between
the first anode structure 126 and the first light-outlet surface
124 of the first LED 120. The first cathode structure 128 is
disposed on the first light-outlet surface 124 of the first LED
120, and there is a first cathode contact area between the first
cathode structure 128 and the first light-outlet surface 124 of the
first LED 120. A sum of the first anode contact area and the first
cathode contact area is less than an area of the first light-outlet
surface 124 of the first LED 120. More specifically, the first
anode structure 126 and the first cathode structure 128 are
disposed in a local area of the first light-outlet surface 124 of
the first LED 120, and the first anode structure 126 and the first
cathode structure 128 are separated and spaced apart from each
other by at least a distance.
[0039] By means of this configuration, the first light beam L1
emitted by the first LED 120 is not completely blocked by the first
anode structure 126 and the first cathode structure 128, and
therefore can penetrate at least one part of the first light-outlet
surface 124, thereby increasing light-outlet efficiency of the
first LED 120. In some implementations, the first anode structure
126 and the first cathode structure 128 may include silver,
aluminum, gold, tungsten, copper, or other proper metal materials.
However, the present disclosure is not limited to this. The first
anode structure 126 and the first cathode structure 128 that are
described in the present disclosure merely represent that the two
are respectively electrically coupled to different power supply
sources, but do not represent essential positive and negative poles
of an LED. That is, for a current that flows through the first LED
120, in some implementations, the current may flow from the first
anode structure 126 to the first cathode structure 128; or in some
other implementations, the current may flow from the first cathode
structure 128 to the first anode structure 126.
[0040] On the other hand, the second LED 130 may also include a
second anode structure 136 and a second cathode structure 138. The
second anode structure 136 is disposed on the second reflection
surface 132 of the second LED 130, and there is a second anode
contact area between the second anode structure 136 and the second
reflection surface 132 of the second LED 130. The second cathode
structure 138 is disposed on the second reflection surface 132 of
the second LED 130, and there is a second cathode contact area
between the second cathode structure 138 and the second reflection
surface 132 of the second LED 130. A sum of the second anode
contact area and the second cathode contact area is essentially
roughly equal to an area of the second reflection surface 132 of
the second LED 130. More specifically, the second anode structure
136 and the second cathode structure 138 may almost completely
occupy the second reflection surface 132 of the second LED 130,
thereby reducing a probability that a light beam emitted by the
second LED 130 penetrates the second reflection surface 132. In
some implementations, the second anode structure 136 and the second
cathode structure 138 may include silver, aluminum, gold, tungsten,
copper, or other proper metal materials. However, the present
disclosure is not limited to this.
[0041] In some implementations, the first LED 120 may be a solid
light source, such as a red light source, a green light source, or
a blue light source, and may be an organic LED. Multiple first LEDs
120 may form a solid light source array. However, the present
disclosure is not limited to this. In another implementation, the
first LED 120 may alternatively be a micro-LED, and form a pixel
array. In addition, the size of the micro-LED device may be
adjusted according to a requirement on a pixel size of a display
apparatus.
[0042] In some implementations, the second LED 130 may include a
red light source, a green light source, or a blue light source, and
may be a LED or an organic LED. However, the present disclosure is
not limited to this. In some implementations, the second LED 130
may include at least one red light source, at least one green light
source, and at least one blue light source, so as to generate white
light by means of mixture. Alternatively, the second LED 130 may be
a white LED, such as a white micro-LED. However, the present
disclosure is not limited to this.
[0043] The first reflection surface 122 of the first LED 120 may
include a thin metal film, or a reflective film made of another
high reflectivity material, so as to more effectively deflect, to
the first light-outlet surface 124, an emitted light beam that
travels in a direction different from the first direction D1.
However, the present disclosure is not limited to this. Similarly,
in some implementations, the second reflection surface 132 may
include a thin metal film, or a reflective film made of another
high reflectivity material, so as to more effectively deflect, to
the second light-outlet surface 134, a light beam that travels in a
direction different from the second direction D2. However, the
present disclosure is not limited to this.
[0044] In addition, the bi-directional optical module 101 may
further include a light guiding structure 140. The light guiding
structure 140 is disposed on the first light-outlet surface 124 of
the first LED 120, so as to increase directionality that is of the
first light beam L1 emitted by the first LED 120 and that is for
directing the first direction D1. In some implementations, the
light guiding structure 140 may include a plastic material. A
refractive index of the plastic material may be between that of the
first LED 120 and that of the air, thereby preventing the first
light beam L1 from large-angle deflection when the first light beam
L1 leaves the first LED 120. In some implementations, the light
guiding structure 140 may include a plastic material and a
micro-lens. The plastic material may be disposed between the
micro-lens and the first LED 120. However, the present disclosure
is not limited to this.
[0045] Referring to FIG. 3, FIG. 3 is a schematic sectional view of
a transparent display apparatus 100B according to some
implementations of the present disclosure. A location of the
cross-section drawn in FIG. 3 is the same as that in FIG. 2. At
least one difference between the transparent display apparatus 100B
drawn in FIG. 3 and the transparent display apparatus 100A drawn in
FIG. 2 lies in that, in the transparent display apparatus 100B
drawn in FIG. 3, the first anode structure 126 and the first
cathode structure 128 that are of the first LED 120 are
respectively disposed on two opposite surfaces of the first LED
120, and the second anode structure 136 and the second cathode
structure 138 that are of the second LED 130 are similarly
respectively disposed on two opposite surfaces of the second
LED.
[0046] Specifically, the first anode structure 126 is disposed on
the first light-outlet surface 124, and the first cathode structure
128 is disposed on the first reflection surface 122. There is a
first anode contact area between the first anode structure 126 and
the first light-outlet surface 124, and there is a first cathode
contact area between the first cathode structure 128 and the first
reflection surface 122. The first anode contact area is smaller
than the first cathode contact area. The first cathode contact area
of the first reflection surface 122 is relatively larger than the
first anode contact area of the first light-outlet surface 124.
Therefore, the first light beam L1 emitted by the first LED 120 is
more easily blocked by the first cathode structure 128, and the
first light beam L1 is more easily kept away from the first anode
structure 126, so that the first light beam L1 can penetrate the
first light-outlet surface 124 more easily to leave the first LED
120, helping increase light-outlet efficiency of the first LED
120.
[0047] The second anode structure 136 is disposed on the second
reflection surface 132, and the second cathode structure 138 is
disposed on the second light-outlet surface 134. There is a second
anode contact area between the second anode structure 136 and the
second reflection surface 132, and there is a second cathode
contact area between the second cathode structure 138 and the
second light-outlet surface 134. The second anode contact area is
larger than the second cathode area. By means of this
configuration, when the second LED 130 generates a light beam that
travels in a direction different from the second direction D2, and
when the light beam arrives at the second reflection surface 132 of
the second LED 130, the light beam may be blocked by the second
anode structure 136 and therefore less easily penetrate the second
reflection surface 132, helping increase light-outlet efficiency of
the second LED 130.
[0048] Referring to both FIG. 4 and FIG. 5, FIG. 4 and FIG. 5 are
schematic top views of transparent display apparatuses 100C and
100D according to some implementations of the present disclosure.
At least one difference between the transparent display apparatuses
100C and 100D drawn in FIG. 4 and FIG. 5 and the transparent
display apparatus 100A drawn in FIG. 1 lies in that, in the
transparent display apparatuses 100C and 100D drawn in FIG. 4 and
FIG. 5, the first LEDs 120 of the bi-directional optical module 101
may be arranged in the configuration direction A, but the second
LEDs 130 of the bi-directional optical module 101 and the
light-transparent portions T' are alternately arranged in the
configuration direction A. A horizontal row formed by the first
LEDs 120 and a horizontal row formed by the second LEDs 130 and the
light-transparent portions T' are mutually side by side. In
addition, in the transparent display apparatuses 100C and 100D
drawn in FIG. 4 and FIG. 5, a proportion in which the
light-transparent portions T' of the bi-directional optical module
101 occupies the substrate 110 may be adjusted according to a
penetration requirement of the applied transparent display
apparatus, thereby increasing diversity of penetration of the
transparent display apparatus.
[0049] For example, as shown in FIG. 4, the bi-directional optical
module 101 may be formed by repetitively arranging a unit area U.
The unit area U is formed by three first LEDs 120, two second LEDs
130, and one light-transparent portion T'. In the unit area U, the
three first LEDs 120 are jointly arranged in a row in the
configuration direction A, the two second LEDs 130 and one
light-transparent portion T' are jointly arranged in a row in the
configuration direction A, and the light-transparent portion T' is
located between the two second LEDs 130.
[0050] Alternatively, as shown in FIG. 5, the unit area U that
forms the bi-directional optical module 101 may be formed by six
first LEDs 120, one second LED 130, and five light-transparent
portions T'. In the unit area U, the six first LEDs 120 are jointly
arranged in a row in the configuration direction A, and the one
second LED 130 and the five light-transparent portions T' are
jointly arranged in a row in the configuration direction A. After
four light-transparent portions T' are consecutively arranged, the
second LED 130 is inserted, and then one light-transparent portion
T' is arranged, that is, four light-transparent portions T' and one
light-transparent portion T' are disposed on both the left side and
the right side of the second LED 130.
[0051] Referring to FIG. 6, FIG. 6 is a schematic top view of a
transparent display apparatus 100E according to some
implementations of the present disclosure. At least one difference
between the transparent display apparatus 100E drawn in FIG. 6 and
the foregoing transparent display apparatus lies in that, in the
transparent display apparatus 100E drawn in FIG. 6, the first LED
120 of the bi-directional optical module 101 may be classified into
a red LED R, a green LED G, and a blue LED B, and the unit area U
that forms the bi-directional optical module 101 may be formed by
the red LED R, the green LED G, the blue LED B, the second LED 130,
and the four light-transparent portions T'. In the unit area U, the
red LED R, the green LED G, the blue LED B, and the second LED 130
are sequentially arranged in a row in the configuration direction
A, and the four light-transparent portions T' are jointly arranged
in a row in the configuration direction A. By means of this
configuration, an area of the light-transparent portion T' may be
larger than an area of a display area (including areas of the red
LED R, the green LED G, and the blue LED B), and also larger than
an area of the lighting area (including an area of the second LED
130), helping increase penetration of the applied transparent
display apparatus.
[0052] Referring to both FIG. 7 and FIG. 8, FIG. 7 and FIG. 8 are
respectively schematic top views of transparent display apparatuses
100F and 100G according to some implementations of the present
disclosure. At least one difference between the transparent display
apparatuses 100F and 100G drawn in FIG. 7 and FIG. 8 and the
foregoing transparent display apparatus lies in that, in the
transparent display apparatuses 100F and 100G drawn in FIG. 7 and
FIG. 8, the first LED 120 of the bi-directional optical module 101
may be classified into a red LED R, a green LED G, and a blue LED
B, and the first LED 120, the second LED 130, and the
light-transparent portion T' are arranged in an staggered manner,
helping increase a resolution of the applied transparent display
apparatus.
[0053] For example, as shown in FIG. 7, the unit area U that forms
the bi-directional optical module 101 may be formed by arranging
the light-transparent portion T', the red LED R, the green LED G,
the blue LED B, and the second LED 130 in a row in the
configuration direction A.
[0054] Alternatively, as shown in FIG. 8, the unit area U that
forms the bi-directional optical module 101 may be formed by
arranging the red LED R, the green LED G, the blue LED B, the
second LED 130, and the light-transparent portion T' in a staggered
manner. Specifically, the red LED R and the green LED G may be
arranged in the configuration direction A, the blue LED B and the
red LED R (or the green LED G) may be arranged perpendicular to the
configuration direction A, and the red LED R and the green LED G
may be separated by the second LED 130 and the light-transparent
portion T'.
[0055] Referring to FIG. 9, FIG. 9 is a schematic top view of a
transparent display apparatus 100H according to some
implementations of the present disclosure. At least one difference
between the transparent display apparatus 100H drawn in FIG. 9 and
the foregoing transparent display apparatus lies in that, in the
transparent display apparatus 100H drawn in FIG. 9, the substrate
110 of the bi-directional optical module 101 may include a central
area 114 and a peripheral area 116, and the peripheral area 116 is
located on an edge of the substrate 110, and surrounds the central
area 114. In addition, to make the figure simpler, FIG. 9 draws
only some pixel units that are inside the central area 114 and the
peripheral area 116. This should be clearly described in
advance.
[0056] The central area 114 may have first-type pixel units P1 that
are repetitively arranged. The first-type pixel unit P1 may be
jointly formed by four first LEDs 120, one second LED 130, and one
light-transparent portion T'. The peripheral area 116 may have
second-type pixel units P2 that are repetitively arranged. The
second-type pixel unit P2 may be jointly formed by three first LEDs
120, three second LEDs 130, and three light-transparent portions
T'. In addition, a quantity of second LEDs 130 of the first-type
pixel unit P1 may be different from a quantity of second LEDs 130
of the second-type pixel unit P2, so that the transparent display
apparatus 100H may be designed according to different application
scenarios or different requirements.
[0057] In the foregoing configuration, illumination brightness of
the central area 114 may be different from illumination brightness
of the peripheral area 116. This may be achieved by adjusting areas
of second LEDs 130 of pixel units. For example, areas of second
LEDs 130 of pixel units of the central area 114 may be designed to
be less than areas of second LEDs 130 of pixel units of the
peripheral area 116. Alternatively, driving currents of second LEDs
130 of pixel units may be adjusted. In some implementations, among
proportions of areas of pixel units, a proportion of the areas of
the second LEDs 130 of the pixel units of the central area 114 is
less than a proportion of the areas of the second LEDs 130 of the
pixel units of the peripheral area 116.
[0058] Specifically, by means of the foregoing configuration, the
illumination brightness of the central area 114 may be designed to
be less than the illumination brightness of the peripheral area
116, helping satisfy a scenario of presenting a to-be-displayed
article in the peripheral area 116. In addition, a size of a
light-transparent area T of the first-type pixel unit P1 may also
be different from a size of a second LED 130 of the second-type
pixel unit P2, so that the transparent display apparatus 100H may
be further designed according to different application scenarios or
different requirements. On the other hand, when the first-type
pixel unit P1 of the central area 114 is configured in a manner of
staggered arrangement (for example, the arrangement manner in FIG.
7 or FIG. 8), the central area 114 may have a relatively high
resolution.
[0059] In addition, illumination intensity of the pixel units in
the central area 114 may be different due to different
configurations that are used. For example, in the central area 114,
in addition to the first-type pixel units P1 that are repetitively
arranged, there may further be first-type pixel units P1' that are
repetitively arranged. Compared with the first-type pixel unit P1',
the first-type pixel unit P1 is closer to a middle position of the
central area. That is, the first-type pixel unit P1' may be located
between the first-type pixel unit P1 and the second-type pixel unit
P2. At least one difference between the first-type pixel unit P1
and the first-type pixel unit P1' lies in that, an area of second
LEDs 130' of the first-type pixel unit P1 is smaller than an area
of second LEDs 130' of the first-type pixel unit P1'. By means of
this configuration, display effects and transparency that are of
the bi-directional optical module 101 and that are at a position
close to a middle position of the central area 114 can be improved,
and a lighting effect at a position that is away from the middle
position of the central area 114 is also improved.
[0060] Referring to FIG. 10A, FIG. 10A is a schematic top view of a
local circuit of a transparent display apparatus 1001 according to
some implementations of the present disclosure. The local circuit
of the transparent display apparatus 1001 includes the first LED
120 and the second LED 130 that are of the bi-directional optical
module 101, a pixel circuit 200, a second switch transistor 310, a
control signal source 400, and voltage supply sources O and O'.
[0061] The pixel circuit 200 is electrically coupled to the first
LED 120. The pixel circuit 200 includes a first switch transistor
210, and the first switch transistor 210 has a first gate electrode
212. The first gate electrode 212 may be used as a signal control
end of the pixel circuit 200, and is electrically coupled to the
control signal source 400. Therefore, the pixel circuit 200 may be
configured to drive and control the first LED 120. That is, the
pixel circuit 200 can drive and control a display area of the
transparent display apparatus 1001.
[0062] The second switch transistor 310 is electrically coupled to
the second LED 130. The second switch transistor 310 has a second
gate electrode 312. The second gate electrode 312 may be used as a
signal control end of the second switch transistor 310, and is
electrically coupled to the control signal source 400. Therefore,
the second switch transistor 310 may be configured to drive and
control the second LED 130. That is, the second switch transistor
310 can drive and control a lighting area of the transparent
display apparatus 1001.
[0063] The signal control end of the pixel circuit 200 and the
signal control end of the second switch transistor 310 may share
the control signal source 400. That is, the control signal source
400 may provide a control signal to the display area and the
lighting area of the transparent display apparatus 1001, thereby
simplifying circuit configuration of the transparent display
apparatus 1001. In some implementations, the control signal source
400 may be a light emission signal driver or a scanning signal
driver. However, the present disclosure is not limited to this.
[0064] In addition, the pixel circuit 200 may further include
circuit junctions 220 and 230. The circuit junction 220 of the
pixel circuit 200 may be electrically coupled to the independent
voltage supply source O, and the other circuit junction 230 of the
pixel circuit 200 may be electrically coupled to the first LED 120.
The voltage supply source O may be a high potential voltage supply
source or a low potential voltage supply source.
[0065] That is, at least one circuit junction (for example, the
circuit junction 220) of the pixel circuit 200 may not share a
voltage supply source with the second switch transistor 310.
[0066] Similarly, the second switch transistor 310 may further
include electrodes 314 and 316. The electrode 314 of the second
switch transistor 310 may be electrically coupled to the
independent voltage supply source O', and the other electrode 316
of the second switch transistor 310 may be electrically coupled to
the second LED 130. The voltage supply source O' may be a high
potential voltage supply source or a low potential voltage supply
source. That is, at least one electrode (for example, the electrode
314) of the second switch transistor 310 may not share a same
voltage supply source with another circuit.
[0067] By means of this configuration, when the electrodes 314 and
316 of the second switch transistor 310 are respectively
electrically coupled to the voltage supply source O' and the second
LED 130, the second switch transistor 310 may be disposed on a side
of the display area of the transparent display apparatus 1001, and
does not occupy extra space inside the display area. For example,
the second switch transistor 310 may be disposed in a wiring area
that is of the transparent display apparatus 100I and that is close
to an edge, and does not overlap a position of a pixel unit in the
display area. Compared with the peripheral area, a specific
position of the wiring area may be farther away from the central
area (for example, the peripheral area and the central area in FIG.
9), that is, the peripheral area may be located between the central
area and the wiring area.
[0068] For example, a specific equivalent circuit diagram of the
local circuit may be shown in FIG. 10B. FIG. 10B is an equivalent
circuit diagram of the local circuit of FIG. 10A according to some
implementations of the present disclosure. In FIG. 10B, the drawn
circuit diagram includes high potential voltage supply sources OVDD
and OVDD', low potential voltage supply sources OVSS and OVSS', the
first LED 120, the second LED 130, transistors M1 to M7, a
capacitor C1, an input sources V_int and V_data, shift signal
sources SCAN_N-1 and SCAN_N, and the control signal source 400.
[0069] The high potential voltage supply sources OVDD and OVDD' in
FIG. 10B correspond to the voltage supply sources O and O' in FIG.
10A. The first LED 120 and the second LED 130 in FIG. 10B
respectively correspond to the first LED 120 and the second LED 130
in FIG. 10A. The transistors M5 and M7 in FIG. 10B respectively
correspond to the first switch transistor 210 and the second switch
transistor 310 in FIG. 10A. The control signal source 400 in FIG.
10B corresponds to the control signal source 400 in FIG. 10A. In
addition, circuit junctions N1 and N2 in FIG. 10B respectively
correspond to the circuit junctions 220 and 230 in FIG. 10A.
[0070] As shown in FIG. 10B, the transistors M5 and M7 may be
respectively used as switch components of the first LED 120 and the
second LED 130, and are jointly connected to the control signal
source 400, that is, the transistors M5 and M7 share the control
signal source 400.
[0071] In addition, the pixel circuit 200 and the second switch
transistor 310 may be configured in a manner of being respectively
adjacent to the first LED 120 and the second LED 130. For example,
referring to FIG. 11, FIG. 11 is a schematic sectional view of a
structure that is obtained by configuring the circuit of the
transparent display apparatus 100I of FIG. 10A. A location of the
cross-section drawn in FIG. 11 is the same as that in FIG. 2.
[0072] In FIG. 11, the pixel circuit 200 and the second switch
transistor 310 are disposed on the substrate 110 of the
bi-directional optical module 101. The pixel circuit 200 and the
second switch transistor 310 are respectively connected to the
first LED 120 and the second LED 130.
[0073] The pixel circuit 200 is located below the first LED 120. A
perpendicular projection of the pixel circuit 200 onto the
substrate 110 of the bi-directional optical module 101 is separated
from the light-transparent area T of the bi-directional optical
module 101. That is, the pixel circuit 200 is not located just
below the light-transparent area T of the bi-directional optical
module 101. Therefore, the pixel circuit 200 does not affect
penetration of the light-transparent area T of the bi-directional
optical module 101, helping increase penetration of the transparent
display apparatus 1001. In addition, the bi-directional optical
module 101 may simultaneously provide a light source to a display
picture of the transparent display apparatus 1001 and provide a
light source to a to-be-displayed article that is behind the
transparent display apparatus 1001, helping improve viewing quality
of the displayed article that is behind the transparent display
apparatus 100I.
[0074] In addition, the transparent display apparatus 1001 may
include a cover plate 500 and a spacer S. The cover plate 500 is
disposed opposite to the substrate 110, and the spacer S is
disposed between the substrate 110 and the cover plate 500, so that
the substrate 110 and the cover plate 500 may be separated and
spaced apart from each other by at least a distance. In some
implementations, the cover plate 500 may be a transparent
substrate, a rigid substrate, or a flexible substrate, such as
glass, tempered glass, PC, PET, or another cyclic olefin copolymer.
However, the present disclosure is not limited to this. In some
implementations, the spacer S may be a granular spacer or an
optical spacer. However, the present disclosure is not limited to
this.
[0075] Referring to FIG. 12A, FIG. 12A is a schematic configuration
diagram of a local circuit of a transparent display apparatus 100J
according to some implementations of the present disclosure. At
least one difference between the local circuit that is of the
transparent display apparatus 100J and that is drawn in FIG. 12A
and the local circuit that is of the transparent display apparatus
100I and that is drawn in FIG. 10A lies in that, in the local
circuit that is of the transparent display apparatus 100J and that
is drawn in FIG. 12A, an electrode 314 of the second switch
transistor 310 and the circuit junction 220 of the pixel circuit
200 are electrically coupled to the same high potential voltage
supply source OVDD. Other details in this implementation are
roughly described above, and are not described herein again.
[0076] In addition, for example, a specific equivalent circuit
diagram of the local circuit described in this implementation may
be shown in FIG. 12B. FIG. 12B is an equivalent circuit diagram of
the local circuit of FIG. 12A according to some implementations of
the present disclosure. At least one difference between the
equivalent circuit diagram of the local circuit in FIG. 12B and the
equivalent circuit diagram of the local circuit in FIG. 10B lies in
that, in the equivalent circuit diagram of the local circuit in
FIG. 12B, the high potential voltage supply source OVDD' is
omitted, and the transistor M7 is electrically coupled to the high
potential voltage supply source OVDD.
[0077] Referring to FIG. 13, FIG. 13 is a schematic configuration
diagram of a local circuit of a transparent display apparatus 100K
according to some implementations of the present disclosure. At
least one difference between the local circuit that is of the
transparent display apparatus 100K and that is drawn in FIG. 13 and
the local circuit that is of the transparent display apparatus 100J
and that is drawn in FIG. 12A lies in that, in the local circuit
that is of the transparent display apparatus 100K and that is drawn
in FIG. 13, the second LED 130 may include electrodes El and E2,
and the electrodes El and E2 are respectively electrically coupled
to the second switch transistor 310 and the high potential voltage
supply source OVDD. In addition, the circuit junction 220 of the
pixel circuit 200 is also electrically coupled to the high
potential voltage supply source OVDD. That is, the second LED 130
is coupled between the high potential voltage supply source OVDD
and the second switch transistor 310, and the high potential
voltage supply source OVDD may be electrically connected to the
second switch transistor 310 by using the second LED 130.
[0078] By means of this configuration, the pixel circuit 200 and
the second switch transistor 310 may share the high potential
voltage supply source OVDD. Therefore, one fewer high potential
voltage supply source OVDD may be disposed for the transparent
display apparatus 100K, helping reduce manufacturing costs of the
transparent display apparatus 100K. Other details in this
implementation are roughly described above, and are not described
herein again.
[0079] In addition, a specific equivalent circuit diagram of the
local circuit described in this implementation may be achieved by
selectively adjusting the equivalent circuit diagram drawn in FIG.
12B. For example, at least one difference between the equivalent
circuit diagram in this implementation and the equivalent circuit
diagram in FIG. 12B lies in that, the second LED 130 in this
implementation is coupled between the high potential voltage supply
source OVDD and the transistor M7.
[0080] Referring to FIG. 14 and FIG. 15, FIG. 14 and FIG. 15 are
respectively schematic configuration diagrams of local circuits of
transparent display apparatuses 100L and 100M according to some
implementations of the present disclosure. At least one difference
between the local circuits that are of the transparent display
apparatuses 100L and 100M and that are drawn in FIG. 14 and FIG. 15
and the local circuit of the foregoing transparent display
apparatus lies in that, in the local circuits that are of the
transparent display apparatuses 100L and 100M and that are drawn in
FIG. 14 and FIG. 15, the first LED 120 may include electrodes E3
and E4, and the electrodes E3 and E4 are respectively electrically
coupled to the pixel circuit 200 and the low potential voltage
supply source OVSS. In addition, the electrode 316 of the second
switch transistor 310 is also electrically coupled to the low
potential voltage supply source OVSS. By means of this
configuration, the first LED 120 and the second switch transistor
310 may share the low potential voltage supply source OVSS, helping
reduce manufacturing costs of the transparent display apparatus.
Other details in this implementation are roughly described above,
and are not described herein again.
[0081] In addition, a specific equivalent circuit diagram of the
local circuit described in this implementation may be achieved by
selectively adjusting the equivalent circuit diagram drawn in FIG.
10B or FIG. 12B. For example, at least one difference between the
equivalent circuit diagram in this implementation and the foregoing
equivalent circuit diagram lies in that, the first LED 120 and the
second LED 130 in this implementation are electrically coupled to a
same low potential voltage supply source (for example, the low
potential voltage supply source OVSS or OVSS'), and the second LED
130 may be selectively coupled between the high potential voltage
supply source OVDD and the transistor M7.
[0082] Referring to both FIG. 16 and FIG. 17, FIG. 16 and FIG. 17
are respectively schematic configuration diagrams of local circuits
of transparent display apparatuses 100N and 1000 according to some
implementations of the present disclosure. At least one difference
between the local circuits that are of the transparent display
apparatuses 100N and 1000 and that are drawn in FIG. 16 and FIG. 17
and the local circuit of the foregoing transparent display
apparatus lies in that, in the local circuits that are of the
transparent display apparatuses 100N and 1000 and that are drawn in
FIG. 16 and FIG. 17, the electrodes E3 and E4 of the first LED 120
are respectively electrically coupled to the circuit junction 230
of the pixel circuit 200 and the low potential voltage supply
source OVSS, and the electrodes E1 and E2 of the second LED 130 are
respectively electrically coupled to the electrode 316 of the
second switch transistor 310 and the low potential voltage supply
source OVSS. By means of this configuration, the first LED 120 and
the second LED 130 may share the low potential voltage supply
source OVSS, helping reduce manufacturing costs of the transparent
display apparatus 100. Other details in this implementation are
roughly described above, and are not described herein again.
[0083] In addition, a specific equivalent circuit diagram of the
local circuit described in this implementation may be achieved by
selectively adjusting the equivalent circuit diagram drawn in FIG.
10B or FIG. 12B. For example, at least one difference between the
equivalent circuit diagram in this implementation and the foregoing
equivalent circuit diagram lies in that, the first LED 120 and the
second LED 130 in this implementation are electrically coupled to a
same low potential voltage supply source (for example, the low
potential voltage supply source OVSS or OVSS').
[0084] In the foregoing multiple implementations, the
bi-directional optical module has the first LED, the second LED,
and the at least one light-transparent area. The first light-outlet
surface of the first LED is away from the substrate relative to the
first reflection surface. The second light-outlet surface of the
second LED is close to the substrate relative to the second
reflection surface. In this way, the first light beam emitted by
the first LED and the second light beam emitted by the second LED
may travel in directions that are opposite to each other, thereby
implementing bi-directional light emission of the bi-directional
optical module. In addition, the bi-directional optical module may
simultaneously provide a light source to a display picture of the
transparent display apparatus and provide a light source to a
to-be-displayed article that is behind the transparent display
apparatus, thereby helping improve viewing quality of the displayed
article that is behind the transparent display apparatus.
[0085] Although the present disclosure has been described by using
the foregoing implementations, is the implementations are not used
to limit the present invention. A person skilled in the art can
make various modifications and improvements without departing from
the spirit and scope of the present disclosure. Therefore, the
protection scope of the present disclosure should be subject to the
scope defined by the appended claims.
* * * * *