Compensation device and method for display apparatus, display apparatus, and computer storage medium

Patent metadata

Field	Value
Publication number	US-12586547-B2
Application number	US-202318287655-A
Country	US
Kind code	B2
Filing date	Jan 16, 2023
Priority date	Jan 16, 2023
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

Provided is a compensation device for a display apparatus, including an image-acquiring assembly and a control assembly, wherein the image-acquiring assembly is configured to acquire a first image in a case that the display apparatus displays a picture of a first color; the control assembly is configured to determine a reference region in the first image based on a position of a region to be compensated in the first image in a first direction, wherein the reference region has a same position as the region to be compensated in the first direction, the reference region being greater than the region to be compensated; and the control assembly is configured to determine compensation data of the region to be compensated based on average brightness of the reference region and average brightness of the region to be compensated.

First claim

What is claimed is:

1 . A compensation device for a display apparatus, comprising an image-acquiring assembly and a control assembly, wherein
the image-acquiring assembly is configured to acquire a first image in a case that the display apparatus displays a picture of a first color, wherein the display apparatus comprises sub-pixels for emitting beams of the first color; the control assembly is configured to determine a reference region in the first image based on a position of a region to be compensated in the first image in a first direction, wherein the reference region has a same position as the region to be compensated in the first direction, the reference region being greater than the region to be compensated; the control assembly is configured to determine compensation data of the region to be compensated based on average brightness of the reference region and average brightness of the region to be compensated, wherein the compensation data of the region to be compensated is configured to enable the display apparatus to adjust a region corresponding to the region to be compensated, such that brightness of the region to be compensated is consistent with average brightness of the reference region, and the region to be compensated is any region in the first image, and the position of the reference region varies with the position of the region to be compensated; and the control assembly is further configured to: determine, based on the position of the region to be compensated in the first direction, a strip-shaped region in which the region to be compensated is disposed, wherein the first image comprises a plurality of strip-shaped regions distributed in the first direction, and each of the plurality of strip-shaped regions is provided with a preset reference region; and determine the preset reference region in the strip-shaped region in which the region to be compensated is disposed as the reference region.

2 . The compensation device according to claim 1 , wherein the first image is rectangular, and a display abnormal region is provided at a position where at least one of two opposite edges of the first image is located, the first direction being perpendicular to the two opposite edges.

3 . The compensation device according to claim 1 , wherein a center of the reference region is at a center of the first image in a second direction, the second direction being perpendicular to the first direction.

4 . The compensation device according to claim 1 , wherein a center of the reference region is between a center of the first image and the region to be compensated in a second direction, the second direction being perpendicular to the first direction; or
the center of the reference region is on a side, distal to the region to be compensated, of the center of the first image in the second direction.

5 . The compensation device according to claim 1 , wherein a length of the reference region in the first direction ranges from a length of the first image in the first direction divided by 10 to the length of the first image in the first direction divided by 5.

6 . The compensation device according to claim 1 , wherein a length of the reference region in a second direction ranges from a length of the first image in the second direction divided by 10 to the length of the first image in the second direction divided by 5, wherein the second direction is perpendicular to the first direction.

7 . A display apparatus, comprising a display panel and a control assembly, wherein
the display panel comprises sub-pixels for emitting beams of a first color; the control assembly is configured to acquire compensation data of a region to be compensated, wherein the compensation data is determined by: acquiring a first image in a case that the display apparatus displays a picture of the first color; determining a reference region in the first image based on a position of the region to be compensated in the first image in a first direction; and determining the compensation data based on average brightness of the reference region and average brightness of the region to be compensated; the reference region having a same position as the region to be compensated in the first direction and the reference region being greater than the region to be compensated; the control assembly is configured to perform, based on the compensation data, compensation on the region to be compensated of the picture displayed in the display panel, wherein the compensation data of the region to be compensated is configured to enable the display apparatus to adjust a region corresponding to the region to be compensated, such that brightness of the region to be compensated is consistent with average brightness of the reference region, and the region to be compensated is any region in the first image, and the position of the reference region varies with the position of the region to be compensate; and the control assembly is further configured to: determine, based on the position of the region to be compensated in the first direction, a strip-shaped region in which the region to be compensated is disposed, wherein the first image comprises a plurality of strip-shaped regions distributed in the first direction, and each of the plurality of strip-shaped regions is provided with a preset reference region; and determine the preset reference region in the strip-shaped region in which the region to be compensated is disposed as the reference region.

8 . A compensation method for a display apparatus, comprising:
acquiring a first image in a case that the display apparatus displays a picture of a first color, wherein the display apparatus comprises sub-pixels for emitting beams of the first color; determining a reference region in the first image based on a position of a region to be compensated in the first image in a first direction, wherein the reference region has a same position as the region to be compensated in the first direction, the reference region being greater than the region to be compensated; determining compensation data of the region to be compensated based on average brightness of the reference region and average brightness of the region to be compensated, wherein the compensation data of the region to be compensated is configured to enable the display apparatus to adjust a region corresponding to the region to be compensated, such that brightness of the region to be compensated is consistent with average brightness of the reference region, and the region to be compensated is any region in the first image, and the position of the reference region varies with the position of the region to be compensated; determining, based on the position of the region to be compensated in the first direction, a strip-shaped region in which the region to be compensated is disposed, wherein the first image comprises a plurality of strip-shaped regions distributed in the first direction, and each of the plurality of strip-shaped regions is provided with a preset reference region; and determining the preset reference region in the strip-shaped region in which the region to be compensated is disposed as the reference region.

9 . A compensation device for a display apparatus, comprising a processor and a memory storing at least one instruction, at least one program, a code set, or an instruction set, wherein the processor, when loading and executing the at least one instruction, the at least one program, the code set, or the instruction set, is caused to perform the compensation method for the display apparatus as defined in claim 8 .

10 . A non-transitory computer storage medium, storing at least one instruction, at least one program, a code set, or an instruction set,

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Jing Tan
• Zuo Yini

Classifications

• G09G2320/0686

  with two or more screen areas displaying information with different brightness or colours · CPC title

• G09G2320/0242

  Compensation of deficiencies in the appearance of colours · CPC title

• G09G2320/0233

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

• G09G5/02

  characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} · CPC title

• G06T2207/30168

  Image quality inspection · CPC title