US 12,253,779 B2
Liquid crystal display panel and driving method thereof
Guoren Luo, Guangdong (CN)
Assigned to Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD., Guangzhou (CN)
Appl. No. 17/780,101
Filed by Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD., Guangdong (CN)
PCT Filed Apr. 20, 2022, PCT No. PCT/CN2022/087957
§ 371(c)(1), (2) Date Oct. 5, 2023,
PCT Pub. No. WO2023/184624, PCT Pub. Date Oct. 5, 2023.
Claims priority of application No. 202210342454.1 (CN), filed on Mar. 31, 2022.
Prior Publication US 2024/0231165 A1, Jul. 11, 2024
Int. Cl. G02F 1/1362 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01); G09G 3/36 (2006.01)
CPC G02F 1/1368 (2013.01) [G02F 1/136209 (2013.01); G09G 3/3648 (2013.01); G02F 1/134309 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A liquid crystal display panel, comprising:
a first substrate;
a second substrate disposed opposite to the first substrate; and
a liquid crystal layer disposed between the first substrate and the second substrate;
wherein the liquid crystal display panel comprises a plurality of sub-pixel regions, each of the plurality of sub-pixel regions comprises a main pixel region and an auxiliary pixel region, and the second substrate is provided with a first pixel electrode, a second pixel electrode, a first thin-film transistor (TFT), and a second TFT, wherein the first pixel electrode is disposed corresponding to the main pixel region, the second pixel electrode is disposed corresponding to the auxiliary pixel region, and the first TFT is electrically connected to the first pixel electrode, the second TFT is electrically connected to the second pixel electrode;
wherein the first pixel electrode is configured for displaying an image in the main pixel region, and the second pixel electrode is configured for driving a plurality of impurity ions in the liquid crystal layer to gather at a position on the first substrate or the second substrate corresponding to the auxiliary pixel region;
wherein the first substrate is provided with a first shielding layer, and the first shielding layer is disposed corresponding to the auxiliary pixel region;
wherein the liquid crystal display panel further comprises a common electrode, and the common electrode is disposed in the first substrate or the second substrate;
wherein a voltage applied to the first pixel electrode is a first square wave, a voltage applied to the second pixel electrode is a second square wave, and a common voltage applied to the common electrode is a constant voltage;
wherein a maximum voltage of the first square wave is a1, a minimum voltage of the first square wave is a2; a maximum voltage of the second square wave is b1, a minimum voltage of the second square wave is b2; and a magnitude of the common voltage is c; and
wherein, a relationship among a1, a2, b1, b2, and c is: |a1−c|=|c−a2| and |b1−c|≠|c−b2|.