Coating method of sealant

Abstract

The invention provides a coating method for frame sealing adhesive. According to the coating method, an adhesive application region on a substrate is divided into an adhesive application starting region body, an adhesive application middle region body and an adhesive application stopping region body according to an adhesive application route, and the adhesive application stopping region body and the adhesive application starting region body are designed to overlap, so that sealing of the frame sealing adhesive is achieved; an adhesive jetting nozzle moves along the adhesive application route and jets the adhesive in the adhesive application process, and the adhesive jetting amount, in the different coating region bodies, of the adhesive jetting nozzle is controlled in the adhesive application process, so that the sum of the adhesive application thickness of the adhesive application stopping region body and the adhesive application thickness of the adhesive application starting region body is equal to the adhesive application thickness of the adhesive application middle region body, and the thickness of the sealing portion of the frame sealing adhesive is equal to that of other parts. The problem that box thicknesses are uneven in the alignment process is solved, and the yield of a liquid crystal display panel is increased.

Description

technical field [0001] The invention relates to the field of manufacturing display panels, in particular to a method for coating a frame sealant. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices currently on the market are backlight liquid crystal display devices, which include a liquid crystal display panel and a backlight module. Usually, the liquid crystal display panel consists of a color filter substrate (CF, Color Filter), a thin film transistor substrate (TFT, Thin Film Transistor), a liquid crystal (LC, Liquid Crystal) sandwiched between the color filter substrate and the thin film transistor substrate, and a sealant ( Sealant) composition; its molding process generally includes: front-end array (Array) process (thin film, yellow light, etching and film stripping), middle-stage box (Cell) pr...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a coating method of sealing glue, by controlling the amount of glue spouted by the spouting nozzle in different coating areas when applying glue, and controlling the thickness of the sealing glue, so that the thickness of the sealing glue at the sealing place The thickness is the same as that of other parts, thus solving the problem of uneven box thickness when aligning boxes

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