Friction alignment method and device

Abstract

The embodiment of the invention provides a friction alignment method and device. The friction alignment method comprises the steps: providing a base plate provided with an alignment film and a friction roller provided with cloth bristles; driving the base plate and the friction roller to do relative motion along a first direction, wherein in the relative movement process, a first fixed angle is formed between the first edge of the base plate and a rotating shaft of the friction roller, the friction roller rotates around the rotating shaft, and the state that the included angle between the extending direction of the first edge and the first direction is not zero exists. The embodiment of the invention provides a friction alignment method and device so as to prolong the service life of a friction roller and improve the alignment uniformity of a substrate.

Description

technical field [0001] The invention relates to display technology, in particular to a friction alignment method and device. Background technique [0002] The liquid crystal display panel is widely used in the field of display technology because of its good display effect, mature technology and low production cost. A liquid crystal display panel generally includes an array substrate, a color filter substrate, and a liquid crystal layer sandwiched between the array substrate and the color filter substrate. In order to ensure the orientation of the liquid crystal molecules in the liquid crystal layer, an alignment film is usually provided on the array substrate and / or the color filter substrate. It is an alignment method commonly used in alignment operations at present. It uses a friction roller to apply friction to the alignment film, so that alignment grooves are formed on the alignment film. [0003] And because there are often uneven step areas in the display panel, the ...

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Problems solved by technology

[0003] And because there are often areas of uneven step difference in the display panel, the recovery system of the cloth hair will be affected when the friction roller passes through the uneven step difference area, and the aging will be accelerated.

figure 1 For a top view of frictional alignment in an existing design, refer to figure 1 When the substrate 10 is rubbing, the substrate 10 moves toward the friction roller 20 along the first direction, so that there will be a position 20A on the friction roller 20 that repeatedly acts on the uneven step region 10A of the substrate 10, so that the position 20A quickly aging, resulting in a greatly reduced service life of the friction roller 20, and affecting the alignment uniformity of the substrate

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