Liquid crystal display panel capable of improving contrast and manufacturing method of liquid crystal display panel

Abstract

The invention provides a liquid crystal display panel capable of improving contrast and a manufacturing method of the liquid crystal display panel. The liquid crystal display panel comprises an upper substrate, a lower substrate and a display medium. The display medium is arranged between the upper substrate and the lower substrate; the display medium comprises a polymer mesh structure, wherein the surface roughness of the polymer mesh structure is less than or equal to 100. As the liquid crystal display panel provided by the invention is adopted, the surface roughness is adjusted to a preset roughness threshold to improve the image contrast of the liquid crystal display panel according to the characters that the image contrast of the panel is reduced along with increase of the blue-phase liquid crystal polymer polymerization temperature and the surface roughness of a blue-phase liquid crystal polymer mesh surface is increased along with increase of the polymerization temperature. Compared with the prior art, the liquid crystal display panel can avoid re-measurement and judgment of optical performance after the component manufacture procedure is finished, so that the manufacture procedure cost can be saved.

Description

technical field [0001] The invention relates to a liquid crystal display panel, in particular to a liquid crystal display panel capable of improving contrast and a manufacturing method thereof. Background technique [0002] It has been nearly half a century since liquid crystal display components have evolved from Twist Nematic LC mode to the current mass-produced Vertical Alignment LC mode and In-Plane Switching technology. Due to the advantages of light weight and thin thickness, liquid crystal display components have been extensively researched and developed for related products (such as mobile phone screens, notebook computers, computer screens, and LCD TVs), and have been successfully put into mass production. As the demand for display image quality continues to increase, considerable progress has been made in liquid crystal materials, circuit design, and driving methods compared to the past. However, due to the slow response speed of the above two liquid crystal modes...

AI Technical Summary

Problems solved by technology

However, regardless of theoretical predictions or experimental observations, blue-phase liquid crystals only appear in molecular materials with high purity and high optical activity, so its temperature range is very narrow (less than 2°C)

Although polymer-stabilized blue-phase liquid crystals can effectively solve the problem that the temperature range of the liquid crystal phase is too narrow, the special lattice arrangement period of the blue phase is often a function of the wavelength of visible light. Produces selective Bragg reflection, resulting in dark state light leakage

A solution in the prior art is to set the blue-phase lattice period as a function of non-visible light, such as the ultraviolet region or the infrared region. However, when the blue-phase lattice period is not a function of the wavelength of visible light, the optical It is impossible to identify the difference between the blue phase and the clear phase, and it is impossible to use optical values ​​such as wavelength to judge the photoelectric performance of blue phase liquid crystals. Therefore, it is necessary to measure the photoelectric parameters of blue phase liquid crystals after the display components are manufactured. Blue phase liquid crystal photoelectric performance is good or bad

This will increase the manufacturing cost of the product and waste the process cost when the optoelectronic performance is poor

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