U.S. patent application number 16/540389 was filed with the patent office on 2021-02-18 for display specular reflection mitigation.
The applicant listed for this patent is Dell Products L.P.. Invention is credited to Deeder M. Aurongzeb, Stefan Peana.
Application Number | 20210049746 16/540389 |
Document ID | / |
Family ID | 1000005370956 |
Filed Date | 2021-02-18 |
United States Patent
Application |
20210049746 |
Kind Code |
A1 |
Peana; Stefan ; et
al. |
February 18, 2021 |
DISPLAY SPECULAR REFLECTION MITIGATION
Abstract
Methods, systems, and computer programs encoded on computer
storage mediums for providing, for display on a display device, GUI
having an image, each pixel of the image associated with a
particular brightness; identifying external incoming light that is
incident on the display device; measuring, by a sensor array within
the display device, a brightness of the incoming light at locations
of the display device; calculating, by a display adjustment
computing module, a normal distribution of the brightness of the
incoming light across the display device based on the measured
brightness at the locations of the display device; determining, by
the display adjustment computing module, that a brightness
distribution of the incoming light is greater than the normal
distribution of the brightness of the incoming light across the
display device; and, in response, adjusting, by the display
adjustment computing module, the particular brightness of one or
more pixels of the image.
Inventors: |
Peana; Stefan; (Austin,
TX) ; Aurongzeb; Deeder M.; (Austin, TX) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Dell Products L.P. |
Round Rock |
TX |
US |
|
|
Family ID: |
1000005370956 |
Appl. No.: |
16/540389 |
Filed: |
August 14, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G09G 2320/068 20130101;
G09G 2360/144 20130101; G09G 3/20 20130101; G09G 2320/0626
20130101; G09G 2354/00 20130101; G06T 5/008 20130101 |
International
Class: |
G06T 5/00 20060101
G06T005/00; G09G 3/20 20060101 G09G003/20 |
Claims
1. A computer-implemented method, comprising: providing, for
display on a display device, a graphical user interface (GUI)
having a plurality of pixels representing an image; identifying
external incoming light that is incident on the display device;
measuring, by each individual sensor of a plurality of individual
sensors of a sensor array that is incorporated with the pixels of
the display device, a particular brightness of the incoming light
for a grouping of pixels of the plurality of pixels of the display
device that is associated with the individual sensor, each grouping
of pixels including two or more pixels of the plurality of pixels,
wherein each sensor is associated with a differing grouping of
pixels of the plurality of pixels of the display device;
calculating, by a display adjustment computing module, a normal
distribution of the brightness of the incoming light across the
display device based on the brightness of the incident light
corresponding to each pixel grouping of the plurality of pixels of
the display device that is measured by the corresponding individual
sensor for the pixel grouping; determining, by the display
adjustment computing module, that a brightness of the incoming
light that is incident on a particular grouping of pixels of the
display device is greater than the normal distribution of the
brightness of the incoming light across the display device; and in
response to determining that the brightness of the incoming light
that is incident on a particular grouping of pixels of the display
device is greater than the normal distribution of the brightness of
the incoming light across the display device, adjusting, by the
display adjustment computing module, the particular brightness of
one or more pixels of the image.
2. The computer-implemented method of claim 1, wherein adjusting
the particular brightness of the one or more pixels of the image
includes decreasing the brightness of the pixels of the image that
correspond to the particular grouping of pixels of the display
device.
3. The computer-implemented method of claim 1, wherein adjusting
the particular brightness of the one or more pixels of the image
includes increasing the brightness of the pixels of the image that
correspond to other groupings of pixels of the display device
outside of the particular grouping of pixels of the display
device.
4. The computer-implemented method of claim 1, wherein adjusting
the particular brightness of the one or more pixels of the image
includes i) decreasing the brightness of the pixels of the image
that correspond to the particular grouping of pixels of the display
device and ii) increasing the brightness of the pixels of the image
that correspond to other groupings of pixels of the display device
outside of the particular grouping of pixels of the display
device.
5. The computer-implemented method of claim 1, further comprising:
determining, by the display adjustment computing module, that the
brightness of the incoming light that is incident on the particular
grouping of pixels of the display device is greater than a
threshold brightness; and in response to determining that the
brightness of the incoming light that is incident on the particular
grouping of pixels of the display device is greater than the
threshold brightness, adjusting, by the display adjustment
computing module, the particular brightness of the one or more
pixels of the image.
6. The computer-implemented method of claim 1, further comprising:
identifying a location of a user with respect to the display
device; and identifying a location of a light source providing the
incoming light that is incident on the display device, wherein
adjusting the particular brightness of the one or more pixels of
the image further includes adjusting the particular brightness of
the one or more pixels of the image based on the location of the
user and the location of the light source.
7. The computer-implemented method of claim 6, wherein identifying
the location of the user includes identifying a viewing angle of
the user with respect to a normal of the display device, wherein
identifying the location of the light source includes identifying
an angle of incidence of the incoming light provided by the light
source, and wherein the particular brightness of the one or more
pixels of the image is adjusted based on i) the viewing angle of
the user and ii) the angle of incidence of the incoming light.
8. An information handling system, comprising: a display device
providing for display a graphical user interface (GUI) having a
plurality of pixels representing an image; a sensor array including
a plurality of individual sensors incorporated with the plurality
of pixels of the display device, each sensor is associated with a
differing grouping of pixels of the plurality of pixels of the
display device, each individual sensor of the array of sensors
measuring a particular brightness of external incoming light that
is incident on the display device for a grouping of pixels of the
plurality of pixels of the display device that is associated with
the individual sensor, each grouping of pixels including two or
more pixels of the plurality of pixels; a display adjustment
computing module configured to: calculate a normal distribution of
the brightness of the incoming light across the display device
based on the brightness of the incident light corresponding to each
pixel grouping of the plurality of pixels of the display device
that is measured by the corresponding individual sensor for the
pixel grouping; determine that a brightness of the incoming light
that is incident on a particular grouping of pixels of the display
device is greater than the normal distribution of the brightness of
the incoming light across the display device; and adjust, in
response to determining that the brightness of the incoming light
that is incident on a particular grouping of pixels of the display
device is greater than the normal distribution of the brightness of
the incoming light across the display device, the particular
brightness of one or more pixels of the image.
9. The information handling system of claim 8, wherein adjusting
the particular brightness of the one or more pixels of the image
includes decreasing the brightness of the pixels of the image that
correspond to the particular grouping of pixels of the display
device.
10. The information handling system of claim 8, wherein adjusting
the particular brightness of the one or more pixels of the image
includes increasing the brightness of the pixels of the image that
correspond to other groupings of pixels of the display device
outside of the particular grouping of pixels of the display
device.
11. The information handling system of claim 8, wherein adjusting
the particular brightness of the one or more pixels of the image
includes i) decreasing the brightness of the pixels of the image
that correspond to the particular grouping of pixels of the display
device and ii) increasing the brightness of the pixels of the image
that correspond to other groupings of pixels of the display device
outside of the particular grouping of pixels of the display
device.
12. The information handling system of claim 8, the display
adjustment computing module is further configured to: determine
that the particular brightness of the one or more pixels of the
image is greater than a threshold brightness; and in response to
determining that the particular brightness of the one or more
pixels of the image is greater than the threshold brightness,
adjust the particular brightness of the one or more pixels of the
image.
13. The information handling system of claim 8, further comprising:
a camera that identifies i) a location of a user with respect to
the display device and ii) a location of a light source providing
the incoming light that is incident on the display device, wherein
the adjustment computing module is configured to adjust the
particular brightness of the one or more pixels of the image based
on the location of the user and the location of the light
source.
14. The information handling system of claim 13, wherein
identifying the location of the user includes identifying a viewing
angle of the user with respect to a normal of the display device,
wherein identifying the location of the light source includes
identifying an angle of incidence of the incoming light provided by
the light source, and wherein the particular brightness of the one
or more pixels of the image is adjusted based on i) the viewing
angle of the user and ii) the angle of incidence of the incoming
light.
15. A non-transitory computer-readable medium storing software
comprising instructions executable by one or more computers which,
upon such execution, cause the one or more computers to perform
operations comprising: providing, for display on a display device,
a graphical user interface (GUI) having a plurality of pixels
representing an image; identifying external incoming light that is
incident on the display device; measuring, by each individual
sensor of a plurality of individual sensors of a sensor array that
is incorporated with the pixels of the display device, a particular
brightness of the incoming light for a grouping of pixels of the
plurality of pixels of the display device that is associated with
the individual sensor, each grouping of pixels including two or
more pixels of the plurality of pixels, wherein each sensor is
associated with a differing grouping of pixels of the plurality of
pixels of the display device; calculating, by a display adjustment
computing module, a normal distribution of the brightness of the
incoming light across the display device based on the brightness of
the incident light corresponding to each pixel grouping of the
plurality of pixels of the display device that is measured by the
corresponding individual sensor for the pixel grouping;
determining, by the display adjustment computing module, that a
brightness of the incoming light that is incident on a particular
grouping of pixels of the display device is greater than the normal
distribution of the distribution of the brightness of the incoming
light across the display device; and in response to determining
that the brightness distribution of the incoming light that is
incident on a particular grouping of pixels of the display device
is greater than the normal distribution of the brightness of the
incoming light across the display device, adjusting, by the display
adjustment computing module, the particular brightness of one or
more pixels of the image.
16. The computer-readable medium of claim 15, wherein adjusting the
particular brightness of the one or more pixels of the image
includes decreasing the brightness of the pixels of the image that
correspond to the particular grouping of pixels of the display
device.
17. The computer-readable medium of claim 15, wherein adjusting the
particular brightness of the one or more pixels of the image
includes increasing the brightness of the pixels of the image that
correspond to other groupings of pixels of the display device
outside of the particular grouping of pixels of the display
device.
18. The computer-readable medium of claim 15, wherein adjusting the
particular brightness of the one or more pixels of the image
includes i) decreasing the brightness of the pixels of the image
that correspond to the particular grouping of pixels of the display
device and ii) increasing the brightness of the pixels of the image
that correspond to other groupings of pixels of the display device
outside of the particular grouping of pixels of the display
device.
19. The computer-readable medium of claim 15, the operations
further comprising: determining that the particular brightness of
the one or more pixels of the image is greater than a threshold
brightness; and in response to determining that the particular
brightness of the one or more pixels of the image is greater than
the threshold brightness, adjusting the particular brightness of
the one or more pixels of the image.
20. The computer-readable medium of claim 15, the operations
further comprising: identifying a location of a user with respect
to the display device; and identifying a location of a light source
providing the incoming light that is incident on the display
device, wherein adjusting the particular brightness of the one or
more pixels of the image further includes adjusting the particular
brightness of the one or more pixels of the image based on the
location of the user and the location of the light source.
Description
BACKGROUND
Field of the Disclosure
[0001] The disclosure relates generally to information handling
systems, and in particular, display specular reflection mitigation
of information handling systems.
Description of the Related Art
[0002] As the value and use of information continues to increase,
individuals and businesses seek additional ways to process and
store information. One option available to users is information
handling systems. An information handling system generally
processes, compiles, stores, and/or communicates information or
data for business, personal, or other purposes thereby allowing
users to take advantage of the value of the information. Because
technology and information handling needs and requirements vary
between different users or applications, information handling
systems may also vary regarding what information is handled, how
the information is handled, how much information is processed,
stored, or communicated, and how quickly and efficiently the
information may be processed, stored, or communicated. The
variations in information handling systems allow for information
handling systems to be general or configured for a specific user or
specific use such as financial transaction processing, airline
reservations, enterprise data storage, or global communications. In
addition, information handling systems may include a variety of
hardware and software components that may be configured to process,
store, and communicate information and may include one or more
computer systems, data storage systems, and networking systems.
[0003] To mitigate display surface reflectivity, the industry is
using such approaches as anti-reflection (AR), anti-glare (AG), or
a combination of both. Light sources present in an office
environment can present a challenge to the AR as the brightness of
the light source is concentrated, specular reflection (point source
or line source), and is several orders of magnitude higher than the
average office illumination environment.
SUMMARY
[0004] Innovative aspects of the subject matter described in this
specification may be embodied in methods including providing, for
display on a display device, a graphical user interface (GUI)
having an image, each pixel of the image associated with a
particular brightness; identifying external incoming light that is
incident on the display device; measuring, by a sensor array within
the display device, a brightness of the incoming light at a
plurality of locations of the display device; calculating, by a
display adjustment computing module, a normal distribution of the
brightness of the incoming light across the display device based on
the measured brightness at the plurality of locations of the
display device; determining, by the display adjustment computing
module, that a brightness distribution of the incoming light that
is incident on a particular area of the display device is greater
than the normal distribution of the brightness of the incoming
light across the display device; and in response to determining
that the brightness distribution of the incoming light that is
incident on a particular area of the display device is greater than
the normal distribution of the brightness of the incoming light
across the display device, adjusting, by the display adjustment
computing module, the particular brightness of one or more pixels
of the image.
[0005] Other embodiments of these aspects include corresponding
systems, apparatus, and computer-readable mediums.
[0006] These and other embodiments may each optionally include one
or more of the following features. For instance, adjusting the
particular brightness of the one or more pixels of the image
includes decreasing the brightness of the pixels of the image that
correspond to the particular area of the display device. Adjusting
the particular brightness of the one or more pixels of the image
includes increasing the brightness of the pixels of the image that
correspond to areas of the display device outside of the particular
area of the display device. Adjusting the particular brightness of
the one or more pixels of the image includes i) decreasing the
brightness of the pixels of the image that correspond to the
particular area of the display device and ii) increasing the
brightness of the pixels of the image that correspond to areas of
the display device outside of the particular area of the display
device. Determining, by the display adjustment computing module,
that the brightness distribution of the incoming light that is
incident on the particular area of the display device is greater
than a threshold brightness; and in response to determining that
the brightness distribution of the incoming light that is incident
on the particular are of the display device is greater than the
threshold brightness, adjusting, by the display adjustment
computing module, the particular brightness of the one or more
pixels of the image. Identifying a location of a user with respect
to the display device; and identifying a location of a light source
providing the incoming light that is incident on the display
device, wherein adjusting the particular brightness of the one or
more pixels of the image further includes adjusting the particular
brightness of the one or more pixels of the image based on the
location of the user and the location of the light source. The
location of the user includes identifying a viewing angle of the
user with respect to the normal of the display device, wherein
identifying the location of the light source includes identifying
an angle of incidence of the incoming light provided by the light
source, and wherein the particular brightness of the one or more
pixels of the image is adjusted based on i) the viewing angle of
the user and ii) the angle of incidence of the incoming light.
[0007] Innovative aspects of the subject matter described in this
specification may be embodied in systems including a display device
providing for display a graphical user interface (GUI) having an
image, each pixel of the image associated with a particular
brightness; an array of sensors coupled to the display device, the
array of sensors measuring a brightness of external incoming light
that is incident on the display device at a plurality of location
of the display device; a display adjustment computing module
configured to: calculate a normal distribution of the brightness of
the incoming light across the display device based on the measured
brightness at the plurality of locations of the display device;
determine that a brightness distribution of the incoming light that
is incident on a particular area of the display device is greater
than the normal distribution of the brightness of the incoming
light across the display device; and adjust, in response to
determining that the brightness distribution of the incoming light
that is incident on a particular area of the display device is
greater than the normal distribution of the brightness of the
incoming light across the display device, the particular brightness
of one or more pixels of the image.
[0008] Other embodiments of these aspects include corresponding
methods, apparatus, and computer-readable mediums.
[0009] These and other embodiments may each optionally include one
or more of the following features. For instance, adjusting the
particular brightness of the one or more pixels of the image
includes decreasing the brightness of the pixels of the image that
correspond to the particular area of the display device. Adjusting
the particular brightness of the one or more pixels of the image
includes increasing the brightness of the pixels of the image that
correspond to areas of the display device outside of the particular
area of the display device. Adjusting the particular brightness of
the one or more pixels of the image includes i) decreasing the
brightness of the pixels of the image that correspond to the
particular area of the display device and ii) increasing the
brightness of the pixels of the image that correspond to areas of
the display device outside of the particular area of the display
device. The display adjustment computing module is further
configured to: determine that the particular brightness of the one
or more pixels of the image is greater than a threshold brightness;
and in response to determining that the particular brightness of
the one or more pixels of the image is greater than the threshold
brightness, adjust the particular brightness of the one or more
pixels of the image. A camera that identifies i) a location of a
user with respect to the display device and ii) a location of a
light source providing the incoming light that is incident on the
display device, wherein the adjustment computing module is
configured to adjust the particular brightness of the one or more
pixels of the image based on the location of the user and the
location of the light source. Identifying the location of the user
includes identifying a viewing angle of the user with respect to
the normal of the display device, wherein identifying the location
of the light source includes identifying an angle of incidence of
the incoming light provided by the light source, and wherein the
particular brightness of the one or more pixels of the image is
adjusted based on i) the viewing angle of the user and ii) the
angle of incidence of the incoming light.
[0010] The details of one or more embodiments of the subject matter
described in this specification are set forth in the accompanying
drawings and the description below. Other potential features,
aspects, and advantages of the subject matter will become apparent
from the description, the drawings, and the claims.
BRIEF DESCRIPTION OF DRAWINGS
[0011] FIG. 1 is a block diagram of selected elements of an
embodiment of an information handling system.
[0012] FIG. 2 is a block diagram of an information handling system
for specular reflection mitigation.
[0013] FIG. 3 illustrates an example cross-sectional view of a
display device.
[0014] FIG. 4 illustrates a diagram of a user with respect to the
display device.
[0015] FIG. 5 illustrates a brightness graph of the display
device.
[0016] FIG. 6 illustrates a portion of an optical array.
[0017] FIG. 7 illustrates a flowchart for specular reflection
mitigation.
DESCRIPTION OF PARTICULAR EMBODIMENT(S)
[0018] This document describes a system and a method for mitigation
of specular reflection of display devices. Specifically, the
display device can include an array of sensors that can sense
incoming light that is incident on the display device. A particular
spot of the display device can have a higher than normal
distribution of the incoming light that is sensed by the optical
sensor. The brightness intensity of the particular spot ("hotspot")
can be compared to the incoming image to determine if mitigation of
the "hotspot" is needed (e.g., higher than a threshold). The
"hotspot" can be mitigated--that is, the specular reflection at the
"hotspot" can be mitigated by modifying the image content.
[0019] In the following description, details are set forth by way
of example to facilitate discussion of the disclosed subject
matter. It should be apparent to a person of ordinary skill in the
field, however, that the disclosed embodiments are exemplary and
not exhaustive of all possible embodiments.
[0020] For the purposes of this disclosure, an information handling
system may include an instrumentality or aggregate of
instrumentalities operable to compute, classify, process, transmit,
receive, retrieve, originate, switch, store, display, manifest,
detect, record, reproduce, handle, or utilize various forms of
information, intelligence, or data for business, scientific,
control, entertainment, or other purposes. For example, an
information handling system may be a personal computer, a PDA, a
consumer electronic device, a network storage device, or another
suitable device and may vary in size, shape, performance,
functionality, and price. The information handling system may
include memory, one or more processing resources such as a central
processing unit (CPU) or hardware or software control logic.
Additional components of the information handling system may
include one or more storage devices, one or more communications
ports for communicating with external devices as well as various
input and output (I/O) devices, such as a keyboard, a mouse, and a
video display. The information handling system may also include one
or more buses operable to transmit communication between the
various hardware components.
[0021] For the purposes of this disclosure, computer-readable media
may include an instrumentality or aggregation of instrumentalities
that may retain data and/or instructions for a period of time.
Computer-readable media may include, without limitation, storage
media such as a direct access storage device (e.g., a hard disk
drive or floppy disk), a sequential access storage device (e.g., a
tape disk drive), compact disk, CD-ROM, DVD, random access memory
(RAM), read-only memory (ROM), electrically erasable programmable
read-only memory (EEPROM), and/or flash memory (SSD); as well as
communications media such wires, optical fibers, microwaves, radio
waves, and other electromagnetic and/or optical carriers; and/or
any combination of the foregoing.
[0022] Particular embodiments are best understood by reference to
FIGS. 1-3 wherein like numbers are used to indicate like and
corresponding parts.
[0023] Turning now to the drawings, FIG. 1 illustrates a block
diagram depicting selected elements of an information handling
system 100 in accordance with some embodiments of the present
disclosure. In various embodiments, information handling system 100
may represent different types of portable information handling
systems, such as, display devices, head mounted displays, head
mount display systems, smart phones, tablet computers, notebook
computers, media players, digital cameras, 2-in-1 tablet-laptop
combination computers, and wireless organizers, or other types of
portable information handling systems. In one or more embodiments,
information handling system 100 may also represent other types of
information handling systems, including desktop computers, server
systems, controllers, and microcontroller units, among other types
of information handling systems. Components of information handling
system 100 may include, but are not limited to, a processor
subsystem 120, which may comprise one or more processors, and
system bus 121 that communicatively couples various system
components to processor subsystem 120 including, for example, a
memory subsystem 130, an I/O subsystem 140, a local storage
resource 150, and a network interface 160. System bus 121 may
represent a variety of suitable types of bus structures, e.g., a
memory bus, a peripheral bus, or a local bus using various bus
architectures in selected embodiments. For example, such
architectures may include, but are not limited to, Micro Channel
Architecture (MCA) bus, Industry Standard Architecture (ISA) bus,
Enhanced ISA (EISA) bus, Peripheral Component Interconnect (PCI)
bus, PCI-Express bus, HyperTransport (HT) bus, and Video
Electronics Standards Association (VESA) local bus.
[0024] As depicted in FIG. 1, processor subsystem 120 may comprise
a system, device, or apparatus operable to interpret and/or execute
program instructions and/or process data, and may include a
microprocessor, microcontroller, digital signal processor (DSP),
application specific integrated circuit (ASIC), or another digital
or analog circuitry configured to interpret and/or execute program
instructions and/or process data. In some embodiments, processor
subsystem 120 may interpret and/or execute program instructions
and/or process data stored locally (e.g., in memory subsystem 130
and/or another component of information handling system). In the
same or alternative embodiments, processor subsystem 120 may
interpret and/or execute program instructions and/or process data
stored remotely (e.g., in network storage resource 170).
[0025] Also in FIG. 1, memory subsystem 130 may comprise a system,
device, or apparatus operable to retain and/or retrieve program
instructions and/or data for a period of time (e.g.,
computer-readable media). Memory subsystem 130 may comprise random
access memory (RAM), electrically erasable programmable read-only
memory (EEPROM), a PCMCIA card, flash memory, magnetic storage,
opto-magnetic storage, and/or a suitable selection and/or array of
volatile or non-volatile memory that retains data after power to
its associated information handling system, such as system 100, is
powered down.
[0026] In information handling system 100, I/O subsystem 140 may
comprise a system, device, or apparatus generally operable to
receive and/or transmit data to/from/within information handling
system 100. I/O subsystem 140 may represent, for example, a variety
of communication interfaces, graphics interfaces, video interfaces,
user input interfaces, and/or peripheral interfaces. In various
embodiments, I/O subsystem 140 may be used to support various
peripheral devices, such as a touch panel, a display adapter, a
keyboard, an accelerometer, a touch pad, a gyroscope, an IR sensor,
a microphone, a sensor, or a camera, or another type of peripheral
device.
[0027] Local storage resource 150 may comprise computer-readable
media (e.g., hard disk drive, floppy disk drive, CD-ROM, and/or
other type of rotating storage media, flash memory, EEPROM, and/or
another type of solid state storage media) and may be generally
operable to store instructions and/or data. Likewise, the network
storage resource may comprise computer-readable media (e.g., hard
disk drive, floppy disk drive, CD-ROM, and/or other type of
rotating storage media, flash memory, EEPROM, and/or other type of
solid state storage media) and may be generally operable to store
instructions and/or data.
[0028] In FIG. 1, network interface 160 may be a suitable system,
apparatus, or device operable to serve as an interface between
information handling system 100 and a network 110. Network
interface 160 may enable information handling system 100 to
communicate over network 110 using a suitable transmission protocol
and/or standard, including, but not limited to, transmission
protocols and/or standards enumerated below with respect to the
discussion of network 110. In some embodiments, network interface
160 may be communicatively coupled via network 110 to a network
storage resource 170. Network 110 may be a public network or a
private (e.g. corporate) network. The network may be implemented
as, or may be a part of, a storage area network (SAN), personal
area network (PAN), local area network (LAN), a metropolitan area
network (MAN), a wide area network (WAN), a wireless local area
network (WLAN), a virtual private network (VPN), an intranet, the
Internet or another appropriate architecture or system that
facilitates the communication of signals, data and/or messages
(generally referred to as data). Network interface 160 may enable
wired and/or wireless communications (e.g., NFC or Bluetooth) to
and/or from information handling system 100.
[0029] In particular embodiments, network 110 may include one or
more routers for routing data between client information handling
systems 100 and server information handling systems 100. A device
(e.g., a client information handling system 100 or a server
information handling system 100) on network 110 may be addressed by
a corresponding network address including, for example, an Internet
protocol (IP) address, an Internet name, a Windows Internet name
service (WINS) name, a domain name or other system name. In
particular embodiments, network 110 may include one or more logical
groupings of network devices such as, for example, one or more
sites (e.g. customer sites) or subnets. As an example, a corporate
network may include potentially thousands of offices or branches,
each with its own subnet (or multiple subnets) having many devices.
One or more client information handling systems 100 may communicate
with one or more server information handling systems 100 via any
suitable connection including, for example, a modem connection, a
LAN connection including the Ethernet or a broadband WAN connection
including DSL, Cable, Ti, T3, Fiber Optics, Wi-Fi, or a mobile
network connection including GSM, GPRS, 3G, or WiMax.
[0030] Network 110 may transmit data using a desired storage and/or
communication protocol, including, but not limited to, Fibre
Channel, Frame Relay, Asynchronous Transfer Mode (ATM), Internet
protocol (IP), other packet-based protocol, small computer system
interface (SCSI), Internet SCSI (iSCSI), Serial Attached SCSI (SAS)
or another transport that operates with the SCSI protocol, advanced
technology attachment (ATA), serial ATA (SATA), advanced technology
attachment packet interface (ATAPI), serial storage architecture
(SSA), integrated drive electronics (IDE), and/or any combination
thereof. Network 110 and its various components may be implemented
using hardware, software, or any combination thereof.
[0031] Turning now to FIG. 2, FIG. 2 illustrates an information
handling system (IHS) 200 for display specular reflection
mitigation. Specifically, the IHS 200 can include a display
adjustment computing module 202, a display device 204, and a camera
module 206. The display adjustment computing module 202 can be in
communication with the display device 204 and the camera module
206. The display device 204 can be coupled to or include a sensor
array 208 (an optical sensor array 208). The display device 204 can
provide for display a graphical user interface (GUI) having an
image 210. The image 210 can include a plurality of pixels each
associated with a particular brightness (or particular luminance).
The IHS 200 can be similar to the information handling system 100
of FIG. 1.
[0032] To that end, the IHS 200, and in particular the display
device 204, can experience specular reflection. Specifically, a
light source 220 can provide incoming light 222 that is incident on
the display device 204. In some examples, the light source 220 can
include multiple light sources of distinct sizes that provide
different illumination intensities and/or different color
temperatures. The IHS 200, and in particular, the display
adjustment computing module 202, can mitigate the specular
reflection upon the display device 204, and in particular, perform
intensity and/or color correction of the display device 204.
[0033] FIG. 3 illustrates an example cross-sectional view of the
display device 204. The display device 204 can include a (glass)
cover 302, the sensor array 208, and a backlight 304. In some
examples, the sensor array 208 is incorporated in the display
pixels of the display device 204. In some examples, the sensor
array 208 is a transparent film. In some examples, the sensor array
208 can be physically located on top of the glass cover 302, or
between the glass cover 302 and the backlight 304. In some
examples, the display device 204 is a LCD display device, or a
micro-LED display device.
[0034] As shown, the incoming light 222 can be reflected by the
display device 204 (e.g., the (glass) cover 302) as reflected light
310. The angle of reflection of the reflected light 310 with
respect to the display device 204 (e.g., specular reflection) is
equal to the angle of incidence of the incoming light 222.
[0035] Turning back to FIG. 2, in some implementations, the display
adjustment computing module 202, and in particular, the sensor
array 208, can identify the external incoming light 222 that is
incident on the display device 204. The sensor array 208 can
measure a brightness of the incoming light 222 at a plurality of
locations of the display device 204. In some examples, the sensor
array 208 can measure, for each area of the display device 202 that
corresponds to each pixel or each grouping of pixels, measure a
brightness (or luminesce) of the incoming light 222. In some
examples, the sensor array 208 can include a plurality of
individual sensors each associated with an area of the display
device 204 and/or associated with a grouping of pixels. Each sensor
of the sensor array 208 can measure the brightness (or luminesce)
corresponding to the associated area of the display device 204, or
grouping of pixels corresponding to such an area of the display
deice 204.
[0036] The sensor array 208 can provide data indicating the
brightness of the incoming light 222 to the display adjustment
computing module 202. For example, the sensor array 208 can provide
data including the brightness (or luminesce) for one or more areas
of the display device 202 that corresponds to each pixel or
grouping of pixels of the display device 202. The sensor array 208
can provide data indicating the incoming light 222 to the display
adjustment computing module 202 periodically, or in response to a
request. To that end, based on the data from the sensor array 208
indicating the brightness of the incoming light 222 that is
incident on the display device 204, the display adjustment
computing module 202 can measure calculate a normal distribution of
the brightness of the incoming light 222 across the display device
204. Specifically, the display adjustment computing module 202 can
calculate the normal distribution of the brightness of the incoming
light 222 across the display device 204 based on the measured
brightness of the incoming light 222 at the plurality of locations
of the display device 204.
[0037] In some implementations, the display adjustment computing
module 202 can compare the brightness of the incoming light 222
that is incident on the display device 204 for one or more areas of
the displace device 204 to the normal distribution of the
brightness of the incoming light 222 that is incident on the
display device 204. For example, the display adjustment computing
module 202 can compare the brightness of the incoming light 222
that is incident on the display device 204 for the first area 250
to the normal distribution of the brightness of the incoming light
222 that is incident on the display device 204. The display
adjustment computing module 202 can determine that the brightness
distribution of the incoming light 222 that is incident on the
display device 204 for the first area 250 is greater than the
normal distribution of the brightness of the incoming light 222
that is incident on the display device 204 across the display
device 204 (e.g., utilizing a 1D or 2D histogram). In other words,
the display adjustment computing module 202 can determine that the
incoming light 222 is incident primarily (concentrated) on the
first area 250 of the display device 204. That is, the display
adjustment computing module 202 can determine that the intensity of
the incoming light 222 that is incident on the display device 204
is greater for the first area 250 than the remaining areas of the
display device 204.
[0038] In some implementations, the display adjustment computing
module 202 can, in response to determining that the brightness
distribution of the incoming light 222 that is incident on the
first area 250 of the display device 204 is greater than the normal
distribution of the brightness of the incoming light 222 that is
incident on the display device 204 across the display device 204,
adjust the particular brightness of one or more pixels of the image
210. In other words, the display adjustment computing module 202
can compensate for the specular reflection of the incoming light
222 and adjust the image 210 and the display device 204
accordingly.
[0039] In some examples, the display adjustment computing module
202 can adjust the particular brightness of the pixels of the image
210 by decreasing the brightness of the pixels of the image 210
that correspond to the first area 250 of the display device 204.
That is, the display adjustment computing module 202 can interface
with the display device 204 to decrease the brightness (or
luminesce) of the pixels of the image 210 that corresponds to the
first area 250. In some examples, the display adjustment computing
module 202 can adjust the particular brightness of the pixels of
the image 210 by increasing the brightness of the pixels of the
image 210 that correspond to a second area 252 that is outside of
the first area 250 of the displace device 204. That is, the display
adjustment computing module 202 interface with the display device
204 to increase the brightness (or luminesce) of the pixels of the
image 210 that correspond to the second area 252. In some examples,
the display adjustment computing module 202 can adjust the
particular brightness of the pixels of the image 210 by i)
decreasing the brightness of the pixels of the image 210 that
correspond to the first area 250 of the display device 204 and ii)
increasing the brightness of the pixels of the image 210 that
correspond to a second area 252 that is outside of the first area
250 of the displace device 204. That is, the display adjustment
computing module 202 can interface with the display device 204 to
i) decrease the brightness (or luminesce) of the pixels of the
image 210 that corresponds to the first area 250 and ii) increase
the brightness (or luminesce) of the pixels of the image 210 that
correspond to the second area 252.
[0040] In some examples, the display adjustment computing module
202 can access a database (not shown) to access a look-up table
(LUT) that can store associations between brightness values of the
pixels of the image 210 and the brightness of the incoming light
222. That is, for each detected level of brightness of the incoming
light 222 that is incident on the display device 204, and in
particular, the first area 210, the LUT can store an associated
level of increase and/or decrease of brightness of the pixels of
the image 210 provided for display on the displace device 204.
[0041] In some examples, the display adjustment computing module
202 can, in response to determining that the brightness
distribution of the incoming light 222 that is incident on the
first area 250 of the display device 204 is greater than the normal
distribution of the brightness of the incoming light 222 that is
incident on the display device 204 across the display device 204,
adjust a color of one or more pixels of the image 210. In some
examples, the display adjustment computing module 202 can adjust
the color of the pixels of the image 210 by i) performing a first
color adjustment of the pixels of the image 210 that correspond to
the first area 250 of the display device 204 and ii) performing a
second color adjustment of the pixels of the image 210 that
correspond to a second area 252 that is outside of the first area
250 of the displace device 204.
[0042] In some examples, the display adjustment computing module
202 can compare the brightness of the incoming light 222 that is
incident on the display device 204 on the first area 250 of the
displace device 204 to a threshold brightness. For example, the
display adjustment computing module 202 can compare the brightness
of the incoming light 222 that is incident on the display device
204 for the first area 250 to the threshold brightness. The display
adjustment computing module 202 can determine that the brightness
distribution of the incoming light 222 that is incident on the
display device 204 for the first area 250 is greater than the
threshold brightness. In other words, the display adjustment
computing module 202 can determine that the incoming light 222 that
is incident primarily (concentrated) on the first area 250 of the
display device 204 is greater than a threshold brightness.
[0043] In some examples, the display adjustment computing module
202 can, in response to determining that the brightness
distribution of the incoming light 222 that is incident on the
first area 250 of the display device 204 is greater than the
threshold brightness, adjust the particular brightness of one or
more pixels of the image 210. In other words, the display
adjustment computing module 202 can compensate for the specular
reflection of the incoming light 222 that is greater than the
threshold brightness and adjust the image 210 and the display
device 204 accordingly. In some examples, the display adjustment
computing module 202 can adjust the particular brightness of the
pixels of the image 210 by i) decreasing the brightness of the
pixels of the image 210 that correspond to the first area 250 of
the display device 204 and/or ii) increasing the brightness of the
pixels of the image 210 that correspond to a second area 252 that
is outside of the first area 250 of the displace device 204.
[0044] In some examples, the camera module 206 can determine a
location of a user 270 with respect to the display device 204 and a
location of the light source 220 with respect to the display device
204. Specifically, an intensity of the incoming light 222 can vary
based on the location of the user 270 and/or the location of the
light source 220 with respect to the display device 204. For
example, when the location of the user 270 is at angle with respect
to the display device 204 that corresponds to an angle of the light
source 220 is at with respect to the display device 204, the
intensity of the brightness of the incoming light 222 at the first
area 250 can be increased as perceived by the user 270.
[0045] Referring to FIGS. 2 and 4, in some examples, the camera
module 206 can identify the location of the user 270 with respect
to the display device 204. Specifically, the camera module 206 can
identify a viewing angle 402 of the user 270 with respect to the
normal 404 of the display device 204. The camera module 206 can
identify the location of the light source 220 providing the
incoming light 222 that is incident on the display device 204.
Specifically, the camera module 206 can identify an angle of
incidence 410 of the incoming light 222 provided by the light
source 220 with respect to the normal 404 of the display device
204. The display adjustment computing module 202 can receive such
data from the camera module 206 and can adjust the particular
brightness of the pixels of the image 410 based on the location of
the user 270 and the location of the light source 220.
Specifically, the display adjustment computing module 202 can
adjust the particular brightness of the pixels of the image based
on i) the viewing angle 402 of the user 270 and ii) the angle of
incident 410 of the incoming light 222.
[0046] FIG. 5 illustrates a display chart 500 indicating a specular
reflection spot 502 that corresponds to the incoming light 222 that
is incident on the display device 204 on the first area 250.
Specifically, the display chart 500 displays the brightness of the
display device 204 through a line intersecting the first area 250,
show along axis 510, versus the brightness along the axis 512. The
normal distribution of brightness of the display device 204 across
the display device 204 can be shown by regions 520 and 522 of the
chart 500.
[0047] FIG. 6 illustrates an optical sensor 602 of the sensor array
208. In some examples, the optical sensor 602 can include an
in-pixel TFT layout with a photosensor.
[0048] FIG. 7 illustrates a flowchart depicting selected elements
of an embodiment of a method 700 for display specular reflection
mitigation. The method 700 may be performed by the information
handling system 100, the display adjustment computing module 202,
and/or the IHS 200, described herein with reference to FIGS. 1-6,
or another information handling system. It is noted that certain
operations described in method 700 may be optional or may be
rearranged in different embodiments.
[0049] A graphical user interface (GUI) having the image 210 is
provided for display on the display device 204 (702). In some
examples, each pixel of the image 210 associated with a particular
brightness. External incoming light 222 is identified that is
incident on the display device 202 (704). A brightness of the
incoming light is measured by the sensor array 208 at a plurality
of locations of the display device 204 (706). The display
adjustment computing module 202 calculates a normal distribution of
a brightness of the incoming light 222 that is incident on the
display device 204 across the display device 204 based on the
measured brightness at the plurality of locations of the display
device 204 (708). The display adjustment computing module 202
determines that a brightness distribution of the incoming light 222
that is incident on the first area 250 of the display device 204 is
greater than the normal distribution of the brightness of the
incoming light 222 that is incident on the display device 204
across the display device 204 (710). In response to determining
that the brightness distribution of the incoming light that
brightness distribution of the incoming light 222 that is incident
on the first area 250 of the display device 204 is greater than the
normal distribution of the brightness of the incoming light 222
that is incident on the display device 204 across the display
device 204, the display adjustment computing module 202 adjusts the
particular brightness of one or more pixels of the image 210
(712).
[0050] The above disclosed subject matter is to be considered
illustrative, and not restrictive, and the appended claims are
intended to cover all such modifications, enhancements, and other
embodiments which fall within the true spirit and scope of the
present disclosure. Thus, to the maximum extent allowed by law, the
scope of the present disclosure is to be determined by the broadest
permissible interpretation of the following claims and their
equivalents, and shall not be restricted or limited by the
foregoing detailed description.
[0051] Herein, "or" is inclusive and not exclusive, unless
expressly indicated otherwise or indicated otherwise by context.
Therefore, herein, "A or B" means "A, B, or both," unless expressly
indicated otherwise or indicated otherwise by context. Moreover,
"and" is both joint and several, unless expressly indicated
otherwise or indicated otherwise by context. Therefore, herein, "A
and B" means "A and B, jointly or severally," unless expressly
indicated otherwise or indicated other-wise by context.
[0052] The scope of this disclosure encompasses all changes,
substitutions, variations, alterations, and modifications to the
example embodiments described or illustrated herein that a person
having ordinary skill in the art would comprehend. The scope of
this disclosure is not limited to the example embodiments described
or illustrated herein. Moreover, although this disclosure describes
and illustrates respective embodiments herein as including
particular components, elements, features, functions, operations,
or steps, any of these embodiments may include any combination or
permutation of any of the components, elements, features,
functions, operations, or steps described or illustrated anywhere
herein that a person having ordinary skill in the art would
comprehend. Furthermore, reference in the appended claims to an
apparatus or system or a component of an apparatus or system being
adapted to, arranged to, capable of, configured to, enabled to,
operable to, or operative to perform a particular function
encompasses that apparatus, system, component, whether or not it or
that particular function is activated, turned on, or unlocked, as
long as that apparatus, system, or component is so adapted,
arranged, capable, configured, enabled, operable, or operative.
* * * * *