Manufacturing method of display substrate, manufacturing method of display panel, display device

Abstract

The present invention provides a method for preparing a display substrate, a method for preparing a display panel, and a display device, which are used to solve the problem of electrons in the metal layer of the display substrate in the prior art migrating to an orientation in contact with the edge of the display area under the irradiation of ultraviolet light. When it is on the layer, it will affect the deflection of the liquid crystal molecules in the display area, resulting in defects such as uneven brightness at the edge of the display area, which seriously affects the picture quality. The present invention provides a method for preparing a display substrate, a method for preparing a display panel, and a display device. After the orientation layer of the display substrate is oriented, the display substrate is irradiated with ultraviolet rays, so that electrons on the metal layer of the display substrate are exposed to ultraviolet rays in the first time. The received energy migrates under the irradiation of light, and is evenly distributed on the orientation layer of the display area of ​​the display substrate, and the charge is evenly distributed in the entire display area, and the defect of uneven brightness at the edge of the display area will not occur.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method for preparing a display substrate, a method for preparing a display panel, and a display device. Background technique [0002] In recent years, with the popularization of digital TV, the traditional CRT display has been replaced by a new generation of display technology due to its difficulty in digitization, large size, heavy weight, and radiation. , thin size, no radiation, low power consumption, good display effect and other advantages have begun to be widely popularized and become mainstream products. The manufacturing process of the liquid crystal panel includes the following steps: an array substrate preparation step, a cell alignment step, and a module preparation step. Among them, the box alignment process includes: the step of printing liquid crystal alignment film, the step of rubbing alignment of liquid crystal alignment film, the step of coating fram...

AI Technical Summary

Problems solved by technology

[0004] When curing the sealant, use ultraviolet rays to perform ultraviolet rays on the display panel after the box is completed ( figure 1 As shown by the middle arrow), due to the design accuracy of the mask plate 6 used for curing the frame sealant and the divergence of ultraviolet rays, a certain amount of ultraviolet radiation will also be generated in the display area of ​​the display panel, as figure 1 The distance between the middle mask plate 6 and the sealant is d, and the ultraviolet light is irradiated from the above-mentioned area with a width of d to the periphery of the display area of ​​the display panel, so that the metal layer at the edge of the display area of ​​the array substrate 1 is inevitably damaged. For example, when the pixel electrode layer is irradiated with ultraviolet rays, the electrons received by the metal layer migrate, and when they migrate to the alignment layer 4 that is in contact with the edge of the display area, it will affect the deflection of the liquid crystal molecules in the display area. The edge of the area produces defects such as uneven brightness, which seriously affects the picture quality

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