Alignment film drying device and method

Abstract

The invention provides an alignment film drying device and method which are used for drying an alignment film material which is formed on a first surface of a substrate and diluted by a solvent. The device comprises a heating table, a peripheral support mechanism, multiple support pins and a lifting mechanism, wherein the heating table is used for heating a second surface of the substrate, and multiple air holes are uniformly distributed on the heating table; the peripheral support mechanism is arranged around the heating table and used for supporting the edge of the second surface of the substrate; the multiple support pins are uniformly distributed in the upper surface of the heating table; and the lifting mechanism controls the periphery support mechanism and the support pins to perform lifting. According to the invention, the phenomenon of drying non-uniformity in the drying process of the alignment film can be eliminated, the quality of the alignment film is optimized, the display characteristics of a liquid crystal panel are enhanced, and the quality and acceptability of the liquid crystal panel are improved.

Description

【Technical field】 [0001] The invention relates to the technical field of liquid crystal display, in particular to an alignment film drying device and a method for drying the alignment film. 【Background technique】 [0002] With the continuous development of optoelectronic technology and semiconductor technology, liquid crystal panels (Liquid Crystal Display; LCD) have been widely used in various fields of society. A general liquid crystal panel body is mainly composed of two glass substrates and a liquid crystal layer arranged between the two glass substrates. Currently, the liquid crystal panel is mainly a thin film transistor (Thin Film Transistor; TFT) liquid crystal panel. The manufacturing process of thin-film transistor liquid crystal panels is generally divided into three parts: the production of graphics on two glass substrates, the liquid crystal is sealed between the two glass substrates to form a liquid crystal display unit (CELL), and the liquid crystal display u...

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Problems solved by technology

Regardless of the above-mentioned drying methods, the alignment film on the surface of the substrate is directly dried, and there is a disadvantage that when the fixed receiving hole 120 or the support pin 210 touches the display area of ​​the substrate, due to the contact point being heated The speed is inconsistent with the heating speed of other areas in the display area, and there is a drying difference in the drying process of the alignment film, which leads to unevenness of the alignment film, which further affects the arrangement of liquid crystal molecules on the surface of the alignment film, and eventually leads to poor display characteristics of the liquid crystal panel and reduces the performance of the liquid crystal panel. quality and pass rate

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