Method and apparatus for adjusting an image acquisition apparatus, compensation method of a display panel, device and medium

Patent metadata

Field	Value
Publication number	US-12198385-B2
Application number	US-202318240704-A
Country	US
Kind code	B2
Filing date	Aug 31, 2023
Priority date	Jun 29, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

A method and apparatus for adjusting an image acquisition apparatus, and a compensation method of a display panel. The method for adjusting an image acquisition apparatus includes the following: the image acquisition apparatus is used to acquire m1 groups of first test image data in a set display region of a display panel displaying in a preset grayscale; a collection parameter of the image acquisition apparatus is determined according to the data deviation distribution of the m1 groups of first test image data; and the determined collection parameter of the image acquisition apparatus is configured into the image acquisition apparatus.

First claim

What is claimed is:

1. A method for adjusting an image acquisition apparatus, comprising:
using the image acquisition apparatus to acquire m1 groups of first test image data in a set display region of a display panel displaying in a preset grayscale, wherein m1 is a natural number greater than 2;
determining a collection parameter of the image acquisition apparatus according to data deviation distribution of the m1 groups of first test image data; and
configuring the determined collection parameter of the image acquisition apparatus into the image acquisition apparatus.

2. The method according to claim 1 , wherein determining the collection parameter of the image acquisition apparatus according to the data deviation distribution of the m1 groups of first test image data comprises:
averaging s groups of first test image data of each light-emitting sub-pixel of the display panel to obtain a first test data set S, wherein the first test data set S comprises n elements which are s1 to sn, and averaging t groups of first test image data of each light-emitting sub-pixel to obtain a second test data set T, wherein the second test data set T comprises n elements which are t1 to tn, wherein n is a number of light-emitting sub-pixels in the set display region of the display panel; s1 to sn are average values of s groups of brightness data of n different light-emitting sub-pixels respectively; t1 to tn are average values of t groups of brightness data of the n different light-emitting sub-pixels respectively; and s+t=m1;
calculating S/T, and eliminating data equal to 1 in S/T to obtain first sample data;
calculating a first proportion of sample data within an interval from u−p to u+q in the first sample data, wherein u is an expected average value, and p and q are preset sample parameters; and
in a case where the first proportion is less than a set proportion, adjusting the collection parameter of the image acquisition apparatus according to the first proportion and using the image acquisition apparatus subjected to parameter adjustment to re-collect first test image data until the re-calculated first proportion is greater than or equal to the set proportion.

3. The method according to claim 2 , wherein before the image acquisition apparatus is used to acquire the m1 groups of first test image data in the set display region of the display panel displaying in the preset grayscale, the method further comprises:
using the image acquisition apparatus to acquire m2 groups of first test image data in the set display region of the display panel displaying in the preset grayscale, wherein m2 is greater than m1, and m2 is a natural number;
averaging a groups of second test image data of each light-emitting sub-pixel to obtain a third test data set A, wherein the third test data set A comprises n elements which are a1 to an, and averaging b groups of second test image data of each light-emitting sub-pixel to obtain a fourth test data set B, wherein the fourth test data set B comprises n elements which are b1 to bn, wherein a1 to an are average values of a groups of brightness data of the n different light-emitting sub-pixels respectively; b1 to bn are average values of b groups of brightness data of the n different light-emitting sub-pixels; and a+b=m2;
calculating A/B, and eliminating data equal to 1 in A/B to obtain second sample data; and
determining u, p, and q according to the second sample data.

4. The method according to claim 3 , further comprising:
averaging m1 groups of first test image data of each light-emitting sub-pixel to obtain a fifth test data set E, wherein the fifth test data set E comprises n elements which are e1 to en, wherein e1 to en are average values of m1 groups of brightness data of the n different light-emitting sub-pixels respectively; and
calculating S/E and T/E, and supplementing data obtained by eliminating data equal to 1 in S/E and T/E to the first sample data.

5. The method according to claim 3 , further comprising:
averaging m2 groups of second test image data of each light-emitting sub-pixel to obtain a sixth test data set C, wherein the sixth test data set C comprises n elements which are c1 to cn, wherein c1 to cn are average values of m2 groups of brightness data of the n different light-emitting sub-pixels respectively; and
calculating A/C and B/C, and supplementing data obtained by eliminating data equal to 1 in A/C and B/C to the second sample data.

6. The method according to claim 1 , wherein using the image acquisition apparatus to acquire the m1 groups of first test image data in the set display region of the display panel displaying in the preset grayscale comprises:
using the image acquisition apparatus to acquire m1 groups of first test image data in a secondary screen region of the display panel displaying in the preset grayscale, wherein the display panel comprises a primary screen region and the secondary screen region.

7. The method according to claim 6 , wherein a pixel density of the secondary screen region is less than a pixel density of the primary screen region.

8. The method according to claim 6 , wherein the secondary screen region is a transparent display region.

9. The method according to claim 3 , wherein
m1 is less than or equal to 10, and m2 is greater than or equal to 100.

10. An electronic device, comprising:
at least one processor; and
a memory configured to store at least one program,
wherein when the at least one program is executed by the at least one processor, the at least one processor implements the method according to claim 1 .

11. A computer-readable storage medium storing a computer program, wherein the computer program is configured to, when executed by a processor, implement the method according to claim 1 .

12. The electronic device according to claim 10 , wherein determining the collection parameter of the image acquisition apparatus according to the data deviation distribution of the m1 groups of first test image data comprises:
averaging s groups of first test image data of each light-emitting sub-pixel of the display panel to obtain a first test data set S, wherein the first test data set S comprises n elements which are s1 to sn, and averaging t groups of first test image data of each light-emitting sub-pixel to obtain a second test data set T, wherein the second test data set T comprises n elements which are t1 to tn, wherein n is a number of light-emitting sub-pixels in the set display region of the display panel;
s1 to sn are average values of s groups of brightness data of n different light-emitting sub-pixels respectively; t1 to tn are average values of t groups of brightness data of the n different light-emitting sub-pixels respectively; and s+t=m1;
calculating S/T, and eliminating data equal to 1 in S/T to obtain first sample data;
calculating a first proportion of sample data within an interval from u−p to u+q in the first sample data, wherein u is an expected average value, and p and q are preset sample parameters; and
in a case where the first proportion is less than a set proportion, adjusting the collection parameter of the image acquisition apparatus according to the first proportion and using the image acquisition apparatus subjected to parameter adjustment to re-collect first test image data until the re-calculated first proportion is greater than or equal to the set proportion.

13. The electronic device according to claim 12 , wherein before the image acquisition apparatus is used to acquire the m1 groups of first test image data in the set display region of the display panel displaying in the preset grayscale, the method further comprises:
using

Assignees

• Hefei Visionox Tech Co Ltd

Inventors

• Hu Fengzhang
• Zhang Chenqi
• Shen Liangliang
• Zhang Jinquan
• Chen Xinquan
• Tang Tao

Classifications

• G09G2320/0233

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

• G09G3/2007

  Display of intermediate tones · CPC title

• G06T2207/20216

  Image averaging · CPC title

• G06T7/0004

  Industrial image inspection · CPC title

• G06T2207/30121

  CRT, LCD or plasma display · CPC title