US 11,778,880 B2
Display substrate and manufacturing method thereof, display panel and display device
Zhidong Yuan, Beijing (CN); Pan Xu, Beijing (CN); Can Yuan, Beijing (CN); and Meng Li, Beijing (CN)
Assigned to Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed by Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on May 4, 2021, as Appl. No. 17/307,573.
Application 17/307,573 is a continuation of application No. 16/335,972, granted, now 11,031,437, previously published as PCT/CN2018/092399, filed on Jun. 22, 2018.
Claims priority of application No. 201710494463.1 (CN), filed on Jun. 26, 2017.
Prior Publication US 2021/0257417 A1, Aug. 19, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 59/35 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01)
CPC H10K 59/35 (2023.02) [H10K 71/00 (2023.02); H10K 59/12 (2023.02); H10K 59/38 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A display substrate, comprising a plurality of pixels, wherein
each of the plurality of pixels comprises a plurality of sub-pixels that emit light of different colors, and each of the plurality of sub-pixels comprises a light emitting element, the light emitting element comprises an upper electrode, a lower electrode, and a light emitting layer provided between the upper electrode and the lower electrode;
each of at least two of the plurality of sub-pixels comprises a color filter, the color filter has a solid structure; without any opening, and the color filter covers at least a portion of a light emitting region of the light emitting element of the sub-pixel which comprises the color filter;
a color of light emitted by the light emitting element of at least one of the at least two of the plurality of sub-pixels includes a color of the color filter of the at least one of the at least two of the plurality of sub-pixels;
the plurality of sub-pixels that emit light of different colors comprise a red-light sub-pixel, a green-light sub-pixel, and a blue-light sub-pixel that respectively emit red light, green light, and blue light;
the at least two of the plurality of sub-pixels include the green-light sub-pixel, the blue-light sub-pixel, and the red-light sub-pixel, and an overlapping area of the color filter and the light emitting region of the light emitting element of the green-light sub-pixel is less than an overlapping area of the color filter and the light emitting region of the light emitting element of the blue-light sub-pixel; and
the color filter of the green-light sub pixel does not cover an entirety of the light emitting region of the light emitting element of the green-light sub-pixel but covers a center of the light emitting region of the light emitting element of the green-light sub-pixel, and the color filter of the blue-light sub-pixel does not cover an entirety of the light emitting region of the light emitting element of the blue-light sub-pixel but covers a center of the light emitting region of the light emitting element of the blue-light sub-pixel, and the color filter of the red-light sub-pixel covers an entirety of the light emitting region of the light emitting element of the red-light sub-pixel.