US 12,332,528 B2
Cholesterol liquid crystal display device
Chi-Chang Liao, Tainan (TW); and Wu-Chang Yang, Tainan (TW)
Assigned to IRIS OPTRONICS CO., LTD., Tainan (TW)
Filed by IRIS OPTRONICS CO., LTD., Tainan (TW)
Filed on Oct. 13, 2023, as Appl. No. 18/487,040.
Claims priority of application No. 111138975 (TW), filed on Oct. 14, 2022.
Prior Publication US 2024/0126127 A1, Apr. 18, 2024
Int. Cl. G02F 1/1368 (2006.01); G02F 1/1343 (2006.01); G02F 1/1362 (2006.01); G02F 1/137 (2006.01)
CPC G02F 1/1368 (2013.01) [G02F 1/134309 (2013.01); G02F 1/136209 (2013.01); G02F 1/136222 (2021.01); G02F 1/137 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A cholesteric liquid crystal display device, comprising:
a first substrate, having a first surface and a second surface corresponding to the first surface;
a second substrate, having a third surface and a fourth surface corresponding to the third surface;
a third substrate, having a fifth surface and a sixth surface corresponding to the fifth surface;
a first cholesteric liquid crystal layer, disposed between the first substrate and the second substrate;
a second cholesteric liquid crystal layer, disposed between the second substrate and the third substrate;
a first common electrode pattern layer, implemented on the second surface of the first substrate;
a second common electrode pattern layer, implemented on the fifth surface of the third substrate;
a first TFT circuit pattern layer, implemented on the third surface of the second substrate; and
a second TFT circuit pattern layer disposed on the fourth surface of the second substrate;
wherein the first TFT circuit pattern layer and the second TFT circuit pattern layer are respectively aligned.