Manufacturing method of liquid crystal display panel and liquid crystal display panel

Abstract

The invention discloses a manufacturing method of a liquid crystal display panel and the liquid crystal display panel. An array substrate, a color film substrate and a liquid crystal material are provided, and the liquid crystal material comprises liquid crystal molecules and reactive monomers; the array substrate and the color film substrate are oppositely attached, and a liquid crystal materialis dripped between the array substrate and the color film substrate to obtain a liquid crystal box; ultraviolet light is used for carrying out ultraviolet light irradiation on the liquid crystal box twice, so that liquid crystal molecules form a pre-tilt angle to form a liquid crystal layer; the supercritical fluid is used for extracting the liquid crystal layer, an extraction process is added after ultraviolet irradiation by using the technical means of the reactive monomer in the liquid crystal layer, and the residual reactive monomer in the liquid crystal layer is selectively extracted through the supercritical fluid, so that the image residual phenomenon of the liquid crystal display panel can be improved.

Description

technical field [0001] The present application relates to the display field, in particular to a method for manufacturing a liquid crystal display panel and the liquid crystal display panel. Background technique [0002] Currently, a liquid crystal display (LCD, Liquid crystal displays) is a widely used flat panel display, and the liquid crystal is an important part of the liquid crystal display. The reactive monomer (RM, Reactive mesogen) is the key component in the liquid crystal. However, in the preparation process of the liquid crystal display panel of the existing liquid crystal display, the VA mode is generally used for alignment. Among them, the VA mode is a vertical alignment display mode. During the alignment process, the liquid crystal is polarized and tilted, and the liquid crystal close to the PI surface is tilted at a certain angle; then the ultraviolet light triggers RM to react, and polymerizes on the PI surface to form long-chain molecules. , so that the liq...

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Problems solved by technology

[0003] In the process of aligning in VA mode, it is necessary to undergo the first UV irradiation to form a pre-tilt angle for the liquid crystal molecules, and then undergo the second UV irradiation to completely react the reactive monomers in the liquid crystal layer. However, the actual situation Yes, after the second UV irradiation, the reactive monomers cannot be completely reacted; and the amount of residual reactive monomers will have a significant impact on the image retention of the LCD panel, the more residual reactive monomers More, the more serious the image sticking phenomenon of the liquid crystal display panel is, the less the residual amount of reactive monomer is, and the slighter the image sticking phenomenon of the liquid crystal display panel is

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