System and method of compensation of a curved display

Patent metadata

Field	Value
Publication number	US-10403199-B2
Application number	US-201815888875-A
Country	US
Kind code	B2
Filing date	Feb 5, 2018
Priority date	Feb 5, 2018
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

In one or more embodiments, one or more systems, methods, and/or processes may determine first brightness settings of pixels of a display; may determine curve determinations from strain gauges associated with the display; may determine, from the curve determinations, vectors, where each of the vectors is orthogonal to the display at a respective position of the display; may determine second brightness settings of the pixels of the display based at least on the first brightness settings and the vectors; and may display, via the display, an image utilizing the second plurality of brightness settings.

First claim

What is claimed is:

1. An information handling system, comprising:
at least one processor;
a graphics processing unit; and
a memory medium, coupled to the at least one processor, that stores instructions executable by the at least one processor, which when executed by the at least one processor, cause the information handling system to:
determine a first plurality of brightness settings of pixels of a display;
determine a plurality of curve determinations from a plurality of strain gauges associated with the display; and
determine, from the plurality of curve determinations, a plurality of vectors, each of the plurality of vectors is orthogonal to the display at a respective position of the display;

wherein the graphics processing unit is configured to:
for each particular vector of the plurality of vectors, determine an inner product between a vector of an observation point and the particular vector defining a plurality of inner products, the vector of the observation point indicating a direction of the observation point;
access a lookup table that includes brightness adjustments associated with the plurality of inner products;
identify, from the lookup table and for each inner product of the plurality of inner products, an adjustment to a corresponding brightness setting of the first plurality of brightness settings to define a plurality of brightness adjustments;
determine a second plurality of brightness settings of the pixels of the display based at least on the first plurality of brightness settings and the plurality of brightness adjustments; and

wherein the instructions further cause the information handling system to:
display, via the display, an image utilizing the second plurality of brightness settings.

2. The information handling system of claim 1 , wherein, to determine the second plurality of brightness settings, the graphics processor is further configured to adjust the first plurality of brightness settings.

3. The information handling system of claim 2 , wherein, to determine the second plurality of brightness settings, the graphics processing unit is further configured to:
access an additional lookup table that includes brightness adjustments associated with a plurality of angles; and
look up, from the lookup table, adjustments to the first plurality of brightness settings based at least on angles of the plurality of vectors with respect to the observation point.

4. The information handling system of claim 1 ,
wherein, to determine the plurality of curve determinations from the plurality of strain gauges, the instructions further cause the information handling system to determine the plurality of curve determinations from a plurality of voltages from the plurality of strain gauges; and
wherein the instructions further cause the information handling system to:
convert the plurality of voltages from the plurality of strain gauges to digital data via analog to digital conversions.

5. The information handling system of claim 1 ,
wherein, to determine the second plurality of brightness settings, the graphics processing unit is further configured to:
access an additional lookup table that includes brightness adjustments associated with a plurality of angles; and
determine a first brightness adjustment of the first plurality of brightness adjustments; and

wherein, to determine the first brightness adjustment of the first plurality of brightness adjustments, the graphics processing unit is further configured to:
determine if a first angle associated with a first vector of the plurality of vectors is in the plurality of angles;
if the first angle associated with the first vector of the plurality of vectors is in the plurality of angles, retrieve a brightness adjustment of the brightness adjustments associated with the first angle associated with the first vector of the plurality of vectors; and
if the first angle associated with the first vector of the plurality of vectors is not in the plurality of angles, interpolate a brightness adjustment based on at least two brightness adjustments of the brightness adjustments associated with at least two respective angles of the plurality of angles.

6. The information handling system of claim 5 , wherein the at least two respective angles of the plurality of angles are within a threshold measure of the first angle associated with the first vector of the plurality of vectors.

7. The information handling system of claim 5 , wherein, to interpolate the brightness adjustment, the graphics processing unit is further configured to fit a curve to the at least two brightness adjustments of the brightness adjustments associated with the at least two respective angles of the plurality of angles.

8. A method, comprising:
determining a first plurality of brightness settings of pixels of a display;
determining a plurality of curve determinations from a plurality of strain gauges associated with the display;
determining, from the plurality of curve determinations, a plurality of vectors, each of the plurality of vectors is orthogonal to the display at a respective position of the display;
for each particular vector of the plurality of vectors, determining an inner product between a vector of an observation point and the particular vector defining a plurality of inner products, the vector of the observation point indicating a direction of the observation point;
accessing a lookup table that includes brightness adjustments associated with the plurality of inner products;
identifying, from the lookup table and for each inner product of the plurality of inner products, an adjustment to a corresponding brightness setting of the first plurality of brightness settings to define a plurality of brightness adjustments;
determining a second plurality of brightness settings of the pixels of the display based at least on the first plurality of brightness settings and the plurality of brightness adjustments; and
displaying an image utilizing the second plurality of brightness settings.

9. The method of claim 8 , wherein the graphics processing unit determining the second plurality of brightness settings includes the graphics processing unit adjusting the first plurality of brightness settings.

10. The method of claim 9 , wherein the graphics processing unit adjusting the first plurality of brightness settings includes:
accessing an additional lookup table that includes brightness adjustments associated with a plurality of angles; and
looking up, from the lookup table, adjustments to the first plurality of brightness settings based at least on angles of the plurality of vectors with respect to an observation point.

11. The method of claim 8 , wherein the determining the plurality of curve determinations from the plurality of strain gauges includes determining the plurality of curve determinations from a plurality of voltages from the plurality of strain gauges;
the method further comprising:
converting the plurality of voltages from the plurality of strain gauges to digital data via analog to digital conversions.

12. The method of claim 8 , wherein the graphics processing unit determining the second plurality of brightness settings includes:
accessing a lookup table that includes brightness adjustments associated with a plurality of angles; and
determining an additional first brightness adjustment of the first plurality of brightness adjustments by:
determining if a first angle associated with a first vector of the plurality of vectors is in the plurality of angles;
if the first angle associated with the first vector of the plurality of vectors is in the plurality of angles, retrieving a brightn

Assignees

• Dell Products Lp

Inventors

• Peana Stefan
• Markow Mitchell Anthony
• Aurongzeb Deeder M

Classifications

• G09G2354/00

  Aspects of interface with display user · CPC title

• G09G2320/0626

  for control of overall brightness · CPC title

• G09G2320/0285

  using tables for spatial correction of display data · CPC title

• G09G2320/0233

  Improving the luminance or brightness uniformity across the screen · CPC title

• G09G3/3225 Primary

  using an active matrix · CPC title