US 11,906,827 B2
Method for determining light-leakage degree of display panel, test fixture and computer-readable storage medium
Hanyan Sun, Beijing (CN); Minghui Zhang, Beijing (CN); Weitao Chen, Beijing (CN); and Xiaopeng Cui, Beijing (CN)
Assigned to Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/628,809
Filed by Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Mar. 15, 2021, PCT No. PCT/CN2021/080884
§ 371(c)(1), (2) Date Jan. 20, 2022,
PCT Pub. No. WO2022/193102, PCT Pub. Date Sep. 22, 2022.
Prior Publication US 2023/0161186 A1, May 25, 2023
Int. Cl. G02F 1/13 (2006.01); G09G 3/00 (2006.01)
CPC G02F 1/1309 (2013.01) [G09G 3/006 (2013.01); G09G 2360/16 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for determining a light-leakage degree of a display panel, applicable to a light-leakage detecting device, wherein a display region of the display panel comprises a plurality of sub-regions, and the method comprises:
acquiring a brightness value of each of the sub-regions when a target color is displayed in the display region;
determining a sub-region with the brightness value greater than or equal to a brightness threshold as a light-leakage sub-region; and
determining the light-leakage degree of the display panel based on an average of brightness values of the plurality of sub-regions and the brightness value of the light-leakage sub-region;
wherein determining the light-leakage degree of the display panel based on the average of brightness values of the plurality of sub-regions and the brightness value of the light-leakage sub-region comprises:
determining a first ratio of the brightness value of the light-leakage sub-region to the average of brightness values of the plurality of sub-regions;
determining a second ratio of an area of the light-leakage sub-region to an area of the display region; and
determining the light-leakage degree of the display panel based on the first ratio and the second ratio, wherein the light-leakage degree is positively correlated with the first ratio and positively correlated with the second ratio;
wherein the plurality of sub-regions comprises at least two light-leakage sub-regions; and determining the light-leakage degree of the display panel based on the first ratio and the second ratio comprises:
acquiring at least two products by respectively determining a product of the first ratio and the second ratio corresponding to each of the at least two light-leakage sub-regions; and
determining the light-leakage degree of the display panel based on a sum of the at least two products.