Cholesteric liquid crystal display device and driving method thereof

A cholesteric liquid crystal display (ChLCD) device, comprising:

• a ChLCD panel, comprising X column circuit structures and Y row circuit structures, wherein each intersection crossed by each row circuit structure and each column circuit structure forms a respective pixel;
• wherein, the ChLCD panel comprises multiple uneven pixels and multiple even pixels;
• a liquid crystal driving unit, connected to the ChLCD panel, generating row driving signals and column driving signals, outputting the column driving signals to the X column circuit structures of the ChLCD panel, and outputting the row driving signals to the Y row circuit structures of the ChLCD panel;
• wherein the row driving signals comprise addressing and non-addressing signals;
• and
• a signal processing unit, connected to the row circuit structures and the column circuit structures of the ChLCD panel, and the liquid crystal driving unit;
• wherein, the liquid crystal driving unit outputs the non-addressing signals at most M times to the row circuit structures of the uneven pixels to even out reflectivity of the uneven pixels after the liquid crystal driving unit outputs the addressing signals to the Y-th row circuit structure;
• wherein, M is an integer greater than or equal to 1;
• and
• wherein, the liquid crystal driving unit outputs high-impedance (Hi-Z) voltage signals M times to the row circuit structures of the even pixels to maintain the reflectivity of the even pixels after the liquid crystal driving unit outputs the addressing signals to the Y-th row circuit structure.