US 12,356,827 B2
Display substrate comprising small holes filled with color filter materials and preparation method therefor, and display apparatus
Wenxiu Zhu, Beijing (CN); Hualing Yang, Beijing (CN); and Bo Wang, Beijing (CN)
Assigned to BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/786,563
Filed by BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Sep. 2, 2021, PCT No. PCT/CN2021/116301
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2022/083310, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 202011125441.6 (CN), filed on Oct. 20, 2020.
Prior Publication US 2023/0015554 A1, Jan. 19, 2023
Int. Cl. H10K 59/40 (2023.01); H10K 50/86 (2023.01); H10K 59/12 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 59/65 (2023.01); H10K 59/80 (2023.01)
CPC H10K 59/40 (2023.02) [H10K 50/865 (2023.02); H10K 59/12 (2023.02); H10K 59/353 (2023.02); H10K 59/38 (2023.02); H10K 59/65 (2023.02); H10K 59/8792 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display substrate comprising a baseplate and a plurality of pixel units arranged on the baseplate, wherein a pixel unit comprises a plurality of sub-pixels, at least one of the sub-pixels comprises a color film structure layer, the color film structure layer comprises a black matrix defining a pixel opening and a color film unit covering the pixel opening, the display substrate comprises a first display region and a second display region located at a periphery of the first display region, each of the first display region and the second display region comprises a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, a small hole, which is filled with a filter unit, is provided on the black matrix in the first display region, a material of the filter unit is the same as a material of the color film unit of the first color sub-pixel, an area of the first color sub-pixel in the first display region is less than an area of the first color sub-pixel in the second display region, an area of the second color sub-pixel in the first display region is equal to an area of the second color sub-pixel in the second display region, and an area of the third color sub-pixel in the first display region is equal to an area of the third color sub-pixel in the second display region.