Liquid crystal display panel, substrate alignment method for liquid crystal display panel and substrate of liquid crystal display panel

Abstract

The invention relates to a liquid crystal display panel, a substrate alignment method for the liquid crystal display panel and a substrate of the liquid crystal display panel. The substrate alignment method includes the steps: providing the substrate provided with a plurality of arrayed devices; arranging alignment films on upper layers of the devices; rubbing the alignment films along the alignment direction of the substrate by friction rollers to form grooves on the alignment films; and enabling the included angle between one side of each device and the alignment direction of the substrate to be larger than or equal to 0 degree and smaller than 45 degrees. The poor occurring rate of a reverse twisting domain is reduced, light leak of a pixel black state / grey state is avoided, production cost is reduced, and preparation time of the alignment films is shortened.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a substrate alignment method of a liquid crystal display panel, a substrate of a liquid crystal display panel and a liquid crystal display panel. Background technique [0002] Liquid crystal displays are widely used in various fields due to their small size, light weight, and low radiation. [0003] The liquid crystal display panel is the most important component of the liquid crystal display. The working principle of the liquid crystal display is: by changing the voltage applied to the liquid crystal to change the deflection angle of the liquid crystal molecules, thereby controlling the rotation direction and polarization state of the polarized light, so as to realize the change of the display state of the liquid crystal display. For example, the structure of a thin film field effect transistor liquid crystal display panel mainly includes: a color filter substrat...

AI Technical Summary

Problems solved by technology

But this will undoubtedly increase the production cost and increase the time for preparing the alignment film

[0017] In the prior art, when the alignment film is prepared on other substrates, the above-mentioned problems also exist. For example, the pixel electrodes on the array substrate also have a step difference area, so when the friction roller passes through the step difference area of ​​the pixel electrode, a relatively large alignment difference will also occur. region, eventually resulting in the occurrence of reverse twist domain malformation

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