US 12,216,375 B2
Electronic paper display module
Hao Luo, Beijing (CN); Yin Deng, Beijing (CN); Bo Wu, Beijing (CN); and Dongmei Wei, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Filed on Aug. 26, 2021, as Appl. No. 17/446,121.
Claims priority of application No. 202022362155.3 (CN), filed on Oct. 21, 2020.
Prior Publication US 2022/0121079 A1, Apr. 21, 2022
Int. Cl. G02F 1/16766 (2019.01); G02F 1/167 (2019.01); G02F 1/16755 (2019.01)
CPC G02F 1/16766 (2019.01) [G02F 1/167 (2013.01); G02F 1/16755 (2019.01)] 13 Claims
OG exemplary drawing
 
1. An electronic paper display module, comprising an array substrate and an electronic paper film arranged opposite to each other, wherein
the electronic paper film comprises a common electrode;
the array substrate comprises a display region and a peripheral region, and a common electrode lead is located at the peripheral region; and
an orthogonal projection of the electronic paper film onto the array substrate at least covers the display region, and the common electrode lead is provided with a hollowed-out region;
wherein the array substrate further comprises a base substrate, the base substrate comprises a buffer layer and an insulation layer laminated one on another, the common electrode lead is located at a side of the insulation layer away from the buffer layer, and the insulation layer is arranged at a side of the common electrode lead away from the electronic paper film;
the buffer layer is provided with a concave-convex region at a side close to the insulation layer, each concave is depressed in a direction away from the common electrode lead, and each convex is protruded in a direction close to the common electrode lead; and
at least a part of the insulation layer and at least a part of the common electrode lead are deformed along with the concave-convex region of the buffer layer so as to form the hollowed-out region of the common electrode lead.