Blue-phase liquid crystal display device and drive method thereof

Abstract

A drive method is matched with a blue-phase liquid crystal display device. The blue-phase liquid crystal display device comprises a first substrate and a second substrate which is arranged opposite to the first substrate, the firs substrate is provided with a first electrode layer, and the second substrate is provided with a pixel electrode and a second electrode layer. The drive method comprises steps of transmitting first grayscale voltage to the pixel electrode; transmitting first black insertion voltage to the pixel electrode; and transmitting first voltage to the first electrode layer and enabling a voltage difference to exist between the first electrode layer and the second electrode layer. Accordingly, the dark state light leakage of the blue-phase liquid crystal display device is improved.

Description

technical field [0001] The present invention relates to a display device and its driving method, in particular to a blue phase liquid crystal display device and its driving method. Background technique [0002] The blue phase liquid crystal is a self-aggregated three-dimensional photonic crystal structure, and the liquid crystal phase appears between the isotropic phase and the cholesterol phase. In addition, the blue-phase liquid crystal has self-assembled three-dimensional lattice characteristics, but retains the nature of fluid, and its lattice parameters are easy to change, and can have different optoelectronic properties. It is an excellent adjustable photonic crystal, so it can be applied in three-dimensional display device. Among them, compared with the traditional liquid crystal display technology, the blue phase liquid crystal display device has the advantages of fast response time and wide viewing angle, and does not need an alignment film, so it has received exte...

AI Technical Summary

Problems solved by technology

Although the traditional dark-state black insertion technology can improve the hysteresis problem of blue-phase liquid crystals, thereby improving the contrast and transmittance of the display device, but for the dark-state light leakage of blue-phase liquid crystal display devices, the traditional dark-state black insertion The technology still cannot be effectively improved, causing the dark state transmittance of the blue-phase liquid crystal display device to be unstable and seriously affect its contrast.

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