US 12,298,630 B2
Display panel and array substrate thereof
Yuchen Hou, Guangdong (CN)
Assigned to Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen (CN)
Appl. No. 17/790,189
Filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Jun. 1, 2022, PCT No. PCT/CN2022/096631
§ 371(c)(1), (2) Date Nov. 30, 2023,
PCT Pub. No. WO2023/226072, PCT Pub. Date Nov. 30, 2023.
Claims priority of application No. 20221057436.4 (CN), filed on May 24, 2022.
Prior Publication US 2024/0210765 A1, Jun. 27, 2024
Int. Cl. G02F 1/1343 (2006.01); G02F 1/1337 (2006.01)
CPC G02F 1/134309 (2013.01) [G02F 1/1337 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An array substrate, comprising:
a buffer layer, a side of the buffer layer defined with a plurality of grooves;
a pixel electrode arranged on the side of the buffer layer that is defined with the grooves, wherein the pixel electrode is defined with a plurality of slits, and the plurality of slits are arranged in a one-to-one correspondence with the plurality of the grooves; and
a first alignment film arranged on a side of the pixel electrode facing away from the buffer layer and filling the grooves and the slits, and a side of the first alignment film facing away from the pixel electrode being a flat surface,
wherein the first alignment film comprises a main body film layer and a thickening film layer that are integrally formed, the main body film layer is attached to the pixel electrode, and the thickening film layer is arranged on a side of the main body film layer facing the pixel electrode and fills the grooves and the slits,
a side of the main body film layer away from the pixel electrode and the buffer layer is a flat surface, and
a width of one of the grooves is greater than a width of a corresponding one of the slits to ensure that the thickening film layer completely covers an area directly opposite to the corresponding slit defined on the pixel electrode.