Blue-phase liquid crystal display device

Abstract

The invention provides a blue-phase liquid crystal display device. The device is sequentially composed of an upper polaroid, a lambda / 2 double-axis film, an upper glass substrate, a blue-phase liquid crystal layer, a bulge layer with a high dielectric constant, an electrode layer, a lower glass substrate and a lower polaroid from top to bottom, wherein the electrode layer is composed of a Pixel electrode and a Common electrode which are sequentially distributed on the lower glass substrate at an interval; and bulges in the bulge layer with the high dielectric constant are located just above the Pixel electrode or the Common electrode. According to the blue-phase liquid crystal display device, on the basis of an IPS display mode, the trapezoid bulge layer with the high dielectric constant is introduced above the Pixel electrode and the Common electrode, so that the difficulties that driving voltage of a blue-phase liquid crystal display is too high and the light transmissivity is too low are successfully overcome; and the driving voltage is lowered to be about 14V from 83V, and the light transmissivity is improved to 77% from 60%.

Description

technical field [0001] The invention designs a device in the technical field of liquid crystal display, specifically a blue-phase liquid crystal display device with low driving voltage, high transmittance, simple and stable alignment, and can well eliminate the influence of misalignment. Background technique [0002] In recent years, with the in-depth research on blue-phase liquid crystals, people have discovered many revolutionary advantages of blue-phase liquid crystals, for example, no alignment layer is required, making the manufacturing process simple and greatly reducing production costs; sub-millisecond The response speed enables it to eliminate the tailing phenomenon of the liquid crystal display, and the picture becomes clearer and more stable; in the dark state, the blue phase liquid crystal can be regarded as an isotropic medium, so it can form a symmetrical viewing angle and high contrast . These excellent display performances presented by blue-phase liquid crys...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the deficiencies in the current technology, and proposes a blue-phase liquid crystal display device, which makes a trapezoidal high dielectric constant raised structure above the coplanar electrode in the blue-phase liquid crystal display driven by an in-plane electric field (IPS), Change the classic method of making electrodes on the raised structure in the previous technology, on the basis of the ordinary IPS liquid crystal display manufacturing process, manufacture a material layer with high dielectric constant, and obtain the patented structure of the present invention through one-time photolithography technology, the structure can be obtained by Adjust the dielectric constant of the bump layer, bump height, electrode spacing and other influencing factors to achieve low-voltage drive and high transmittance of the blue-phase liquid crystal display, so the manufacturing process is simple, and there is no electrode defect, while solving the problem of traditional blue-phase liquid crystal The problem of high display driving voltage and low light transmittance promotes the development and application of blue-phase liquid crystal displays

Images