US 11,783,790 B2
Display substrate and driving method therefor, and display device
Zhe Wang, Beijing (CN); Qingqing Ma, Beijing (CN); Chao Tian, Beijing (CN); Rui Xu, Beijing (CN); Shuo Li, Beijing (CN); Min Wang, Beijing (CN); Xiang Yuan, Beijing (CN); Linyu Li, Beijing (CN); Haizhou Ren, Beijing (CN); Haiyang Tian, Beijing (CN); Kaifeng Wang, Beijing (CN); Yinan Gao, Beijing (CN); and Guojie Qin, Beijing (CN)
Assigned to BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 17/50,302
Filed by BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 17, 2019, PCT No. PCT/CN2019/096363
§ 371(c)(1), (2) Date Oct. 23, 2020,
PCT Pub. No. WO2021/007807, PCT Pub. Date Jan. 21, 2021.
Prior Publication US 2023/0121668 A1, Apr. 20, 2023
Int. Cl. G09G 3/34 (2006.01); G02F 1/1685 (2019.01); G02F 1/1681 (2019.01); G02F 1/167 (2019.01)
CPC G09G 3/344 (2013.01) [G02F 1/167 (2013.01); G02F 1/1681 (2019.01); G02F 1/1685 (2019.01); G09G 2300/0426 (2013.01); G09G 2310/0254 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0666 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display substrate, comprising:
a first substrate including a pixel electrode layer, the pixel electrode layer including a plurality of pixel electrodes;
a microcup structure layer disposed on a side of the first substrate, the microcup structure layer including a plurality of microcups, each microcup having a first opening and a second opening opposite to the first opening, the first opening is closer to the pixel electrode layer than the second opening and a size of the first opening being greater than a size of the second opening;
an electrophoretic fluid filled in the plurality of microcups, the electrophoretic fluid being incorporated with charged particles; and
a second substrate disposed on a side, away from the first substrate, of the microcup structure layer with the electrophoretic fluid, the second substrate including a common electrode layer,
wherein an orthographic projection of the second opening of each microcup on the second substrate has a shape of a closed figure, and a distance from any point on a boundary of the closed figure to any other point on the boundary of the closed figure is less than or equal to a limit resolution size of human eyes.