US 12,298,626 B2
Liquid crystal alignment method comprising applying an alignment voltage to a first common electrode, liquid crystal display panel, and mobile terminal
Jinming Liu, Guangdong (CN); Yoonsung Um, Guangdong (CN); Juncheng Xiao, Guangdong (CN); Ji Li, Guangdong (CN); Yun Yu, Guangdong (CN); Xiaojin He, Guangdong (CN); Qi Zhang, Guangdong (CN); and Chunxiao Hu, Guangdong (CN)
Assigned to Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
Appl. No. 17/600,471
Filed by Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Guangdong (CN)
PCT Filed Aug. 26, 2021, PCT No. PCT/CN2021/114677
§ 371(c)(1), (2) Date Sep. 30, 2021,
PCT Pub. No. WO2023/019623, PCT Pub. Date Feb. 23, 2023.
Claims priority of application No. 202110953924.3 (CN), filed on Aug. 19, 2021.
Prior Publication US 2024/0027837 A1, Jan. 25, 2024
Int. Cl. G02F 1/1337 (2006.01); G02F 1/1343 (2006.01)
CPC G02F 1/133753 (2013.01) [G02F 1/134345 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A liquid crystal alignment method, comprising:
providing a first substrate and a second substrate arranged opposite to each other;
forming an electrode layer and a pixel layer spaced on one side of the first substrate facing the second substrate, wherein the pixel layer is arranged between the electrode layer and the second substrate, the pixel layer comprises a plurality of subpixels arranged in an array, each of the subpixels comprises at least two branch electrodes arranged in parallel, and a slit is formed between two of the branch electrodes;
forming a first common electrode on one side of the second substrate facing the first substrate;
forming a liquid crystal layer between the first substrate and the second substrate, wherein the liquid crystal layer comprises a plurality of liquid crystal molecules;
applying an alignment voltage to the first common electrode, a first voltage to the electrode layer, and a second voltage to the pixel layer, wherein the alignment voltage is greater than the first voltage and the second voltage, and the first voltage is equal to the second voltage, so that a pretilt angle formed by a liquid crystal molecule arranged corresponding to the slit is smaller than a pretilt angle formed by a liquid crystal molecule arranged corresponding to the branch electrode; and
performing irradiation with ultraviolet light to fix the liquid crystal molecules at the pretilt angles.