US 12,080,723 B2
Array substrate and method for fabricating same
Jian Zhang, Guangdong (CN); and Chaofan Liu, Guangdong (CN)
Assigned to Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen (CN)
Appl. No. 17/056,760
Filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Oct. 22, 2020, PCT No. PCT/CN2020/122857
§ 371(c)(1), (2) Date Nov. 19, 2020,
PCT Pub. No. WO2022/052224, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 202010939538.4 (CN), filed on Sep. 9, 2020.
Prior Publication US 2022/0320151 A1, Oct. 6, 2022
Int. Cl. H01L 33/00 (2010.01); H01L 27/12 (2006.01)
CPC H01L 27/1244 (2013.01) [H01L 27/1259 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An array substrate, comprising:
a base substrate;
a pixel unit disposed on the base substrate and comprising a main pixel electrode, a sub pixel electrode, and a first thin film transistor disposed between the main pixel electrode and the sub pixel electrode, wherein the main pixel electrode comprises:
a first main electrode comprising a first strip electrode and a second strip electrode crossing each other;
a plurality of first branch electrodes extending diagonally from the first main electrode; and
a plurality of first connection lines, wherein each of the first connection lines extends from the corresponding first branch electrode and is electrically connected to the first thin film transistor; and
a spacer disposed isolated on the pixel unit and between the main pixel electrode and the sub pixel electrode, wherein a projection of the spacer on the base substrate and a projection of the first connection lines on the base substrate do not overlap, and the two projections do not overlap in a direction parallel to the first strip electrode and a direction parallel to the second strip electrode,
wherein the spacer, the main pixel electrode, and the sub pixel electrode are arranged at a same height.
 
9. A method for fabricating an array substrate, comprising:
providing a base substrate;
forming a pixel unit on the base substrate, wherein the pixel unit comprises a main pixel electrode, a sub pixel electrode, and a first thin film transistor disposed between the main pixel electrode and the sub pixel electrode, and the main pixel electrode comprises:
a first main electrode comprising a first strip electrode and a second strip electrode crossing each other;
a plurality of first branch electrodes extending diagonally from the first main electrode; and
a plurality of first connection lines, wherein each of the first connection lines extends from the corresponding first branch electrode and is electrically connected to the first thin film transistor; and
forming a spacer disposed isolated on the pixel unit and between the main pixel electrode and the sub pixel electrode, wherein a projection of the spacer on the base substrate and a projection of the first connection lines on the base substrate do not overlap, and the two projections do not overlap in a direction parallel to the first strip electrode and a direction parallel to the second strip electrode, wherein the spacer, the main pixel electrode, and the sub pixel electrode are arranged at a same height.