Alignment film orientation method, alignment film substrate and display panel

Abstract

The invention discloses an alignment film orientation method comprising the steps of forming a first film layer on a substrate; preparing a second film layer on the first film layer; drawing a 2D pattern on the second film layer by using a laser light source; and heating the first film layer and the second film layer to above the glass transition temperature of the first film layer, so as to forman alignment film, wherein the Young modulus of the first film layer is less than that of the second film layer. According to the method, substrate and panel provided by the embodiment of the invention, the 2D pattern is directly written by using laser to guide a heating expansion path of the film, so as to prepare and guide liquid crystal to achieve a liquid crystal orientation plate with any patterned orientation. The method solves a series of problems caused by small visual angle and friction of a traditional mechanical friction orientation method; compared with the existing visualized liquid crystal orientation method in a scientific research stage, the method provided by the invention is applicable to large-scale production and low in cost.

Description

technical field [0001] Embodiments of the present invention relate to liquid crystal alignment technology, and in particular to an alignment film alignment method, an alignment film substrate, and a display panel. Background technique [0002] With the rapid development of the scientific and technological information industry, visualization has gradually become the common demand of various industries. At present, more than 90% of the display devices on the market use LCD screens. However, there is a relatively big problem with the LCD screen that the viewing angle is small, that is, the picture is blurred at an oblique viewing angle, and even the image cannot be recognized, which seriously affects the visual experience of consumers. [0003] This is because the liquid crystal alignment method currently used in the display industry chain is mainly the mechanical rubbing alignment method. This method is mainly by wrapping the flannelette outside the roller, rolling the roller...

AI Technical Summary

Problems solved by technology

Due to the birefringence of liquid crystals, the light transmittance of liquid crystal devices strongly depends on the observation method; therefore, the viewing angle of liquid crystal display devices obtained by this method is narrow

At the same time, there are still many problems in rubbing orientation: contact friction may damage the transistor on the lower side of the polymer; contact friction will leave flannel fluff, which will affect the display effect of the screen, etc.

However, in this method, the thin film material has strict requirements on the light source, and it is usually necessary to select the optical band in which the photosensitive group reacts as the light source, which poses some challenges to the flexibility of production.

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