US 12,078,879 B2
Cholesteric liquid crystal display device and control method for reducing inrush current when clearing picture
Chi-Wei Lin, Tainan (TW); Wu-Chang Yang, Tainan (TW); and Chi-Chang Liao, Tainan (TW)
Assigned to IRIS OPTRONICS CO., LTD., Tainan (TW)
Filed by IRIS OPTRONICS CO., LTD., Tainan (TW)
Filed on Dec. 8, 2022, as Appl. No. 18/078,090.
Claims priority of application No. 110146032 (TW), filed on Dec. 9, 2021.
Prior Publication US 2023/0185121 A1, Jun. 15, 2023
Int. Cl. G02F 1/133 (2006.01); G02F 1/137 (2006.01)
CPC G02F 1/13306 (2013.01) [G02F 1/137 (2013.01); G02F 2201/50 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cholesteric liquid crystal display device, comprising:
a cholesteric liquid crystal display panel, comprising a plurality of pixel matrix;
a timing control driver, outputting a plurality of enable signals corresponding to the pixel matrix, wherein the enable signals are outputted by different timing; and
a liquid crystal driving unit, electrically coupled to the cholesteric liquid crystal display panel and the timing control driver, and applying a reset voltage to the pixel matrix to clear a screen displayed by the pixel matrix after the liquid crystal driving unit receives the enable signal outputted by the timing control driver.