Liquid crystal display device

Abstract

A liquid crystal display device includes a first substrate, a second substrate opposite the first substrate, a fence structure, a plurality of cholesteric liquid crystals having mutually different color, and a medium layer. The fence structure is disposed between the first substrate and the second substrate to divide a space between the first substrate and the second substrate into different sub-pixel liquid crystal channels. The cholesteric liquid crystals are disposed into the sub-pixel liquid crystal channels to form different liquid crystal cells having mutually different colors. The medium layer is disposed in at least one of the sub-pixel liquid crystal channels to allow the liquid crystal cells to have mutually different cell gaps. According to the invention, electric fields of the cholesteric liquid crystal cells with different colors can be individually adjusted by arranging the medium layer in the different sub-pixel liquid crystal channels to be different in thickness or in material characteristic or by whether arranging the medium layer in one of the sub-pixel liquid crystal channels, so the cholesteric liquid crystals different in color are driven by utilizing the same voltage difference, and thus a driver architecture is simplified.

Description

technical field [0001] The invention relates to a liquid crystal display device. Background technique [0002] In an existing cholesteric liquid crystal display device, the color display effect can be obtained by separately driving red, green and blue cholesteric liquid crystals. However, if figure 1 As shown, generally speaking, the driving voltage range of red cholesteric liquid crystal is 30-40 volts, the driving voltage range of green cholesteric liquid crystal is 36-46 volts, and the driving voltage range of blue cholesteric liquid crystal is 38-50 volts. Different colors of cholesteric liquid crystals have different driving voltage ranges. For example, the driving voltage range of red cholesteric liquid crystals is not suitable for the driving voltage range of blue cholesteric liquid crystals. Therefore, when driving a cholesteric liquid crystal panel structure, three different driving voltages must be provided for three different colors of cholesteric liquid crystal...

AI Technical Summary

Problems solved by technology

However, if figure 1 As shown, generally speaking, the driving voltage range of red cholesteric liquid crystal is 30-40 volts, the driving voltage range of green cholesteric liquid crystal is 36-46 volts, and the driving voltage range of blue cholesteric liquid crystal is 38-50 volts. Different colors of cholesteric liquid crystals have different driving voltage ranges. For example, the driving voltage range of red cholesteric liquid crystals is not suitable for the driving voltage range of blue cholesteric liquid crystals.

Therefore, when driving a cholesteric liquid crystal panel structure, three different driving voltages must be provided for three different colors of cholesteric liquid crystals to write grayscale pixel data, which complicates the entire driving structure

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