Blue phase liquid crystal display device and production method thereof

Abstract

The invention provides a blue phase liquid crystal display device and a production method thereof, relating to the technical field of display. The blue phase liquid crystal display device is used for lowering driving voltage of the blue phase liquid crystal display device. A blue phase liquid crystal display device comprises multiple pixel units which are arranged in a matrix manner, a first substrate and a second substrate which are oppositely arranged as well as a blue phase liquid crystal layer arranged between the first substrate and the second substrate, wherein each pixel unit comprises a first bulge arranged on the first substrate, a pixel electrode covering the first bulge, a second bulge arranged on the second substrate and a common electrode covering the second bulge, the first bulge extends along a first direction, the second bulge extends along a direction opposite to the first direction, the first bulge and the second bulge are arranged in a staggering manner in a second direction, the first direction and the second direction are vertical, and a plane determined by the first direction and the second direction is parallel to the first substrate. The blue phase liquid crystal display device is used for displaying an image.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a blue-phase liquid crystal display device and a manufacturing method thereof. Background technique [0002] Blue phase liquid crystal is a phase state with special properties in liquid crystal. When no voltage is applied, the blue-phase liquid crystal has an isotropic refractive index, and the light cannot pass through the display panel, forming a dark field; when a voltage is applied, the blue-phase liquid crystal has an anisotropic refractive index, birefringence occurs, and the light can pass through It penetrates the display panel to realize light transmission, and the anisotropy of the refractive index of the blue phase liquid crystal changes with the applied voltage, and the light transmittance can be adjusted by adjusting the voltage. The display device adopting the blue phase liquid crystal can greatly improve the response speed, and does not need alignment treatment. ...

AI Technical Summary

Problems solved by technology

[0004] Since the pixel electrodes and the common electrodes used to form the horizontal electric field in the blue-phase liquid crystal display device are located on the array substrate, the electric field lines formed between the pixel electrodes and the common electrodes need to penetrate the passivation layer, and the passivation layer will affect the electric field strength. weakening effect; and the pixel electrodes and common electrodes are flatly spread on the array substrate, the blue phase liquid crystal layer will also weaken the electric field strength, resulting in the weaker electric field strength at the position closer to the color filter substrate, so in order to drive the blue phase normally Phase liquid crystal display device requires high driving voltage

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