Liquid crystal display for preventing sealed glue box thickness ununiformity and its manufacture method

Abstract

The invention discloses a liquid crystal display for preventing uneven thickness of a sealant box and a manufacturing method thereof. The empty liquid crystal box is made of transfer points made on upper and lower glass substrates respectively, and the sealant frame is sprayed with gasket material and then pasted in alignment. It is formed by bonding, hot pressing, and curing. The transfer point is set at the transfer conduction of the row and column electrodes of the upper and lower glass substrates, that is, the frame range where the row electrodes are drawn out, and the frame range including the seal, which together form a "U" shape, and on the part of the glass substrate with column electrodes at the same time, the transfer sealant dispersed with conductive gold balls is screen-printed to make the transfer point. The sealant frame is set in the frame range opposite to the seal and in At the same time, a sealant is screen-printed on the glass substrate with the row electrodes to make a sealant frame. From the perspective of changing the structural design of the sealant frame and the transfer point, the invention effectively solves the phenomenon of uneven box thickness in the production process of high-end liquid crystal display devices, especially color screen products, and improves the yield of good products.

Description

【Technical field】 [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display capable of preventing uneven cell thickness and a manufacturing method thereof. 【Background technique】 [0002] The liquid crystal display is equipped with upper and lower glass substrates, and also includes color filters, polarizers, and alignment films. Row electrodes and column electrodes are arranged on the glass substrates, and alignment materials are coated on the electrode surfaces. Between the glass substrates A gap is left, liquid crystal is poured into the gap, and the upper and lower glass substrates are sealed by a sealant frame to form an empty box. Most of the existing liquid crystal displays adopt the method of unilateral lead-out electrodes, and the driving of the row electrodes and column electrodes is realized by a driver chip pressed on a single glass, so the row electrodes of this unilateral lead-out electrode method must be In some way, ...

AI Technical Summary

Problems solved by technology

[0004] When the transfer point 4 and the sealant frame 3 are screen-printed, since the transfer point 4 and the sealant frame 3 are respectively printed on two pieces of glass with different upper and lower sides, their amount of glue is difficult to control, and the manufactured liquid crystal empty box 5 It is easy to appear that the thickness of the upper and lower boxes is too thick / thin, and the thickness of the left and right boxes is too thin / thick, that is, the thickness of the "back" box is uneven. At the same time, when printing the joint between the transfer point 4 and the sealant frame 3, it is required 4 and the sealant frame 3 have sufficient overlapping parts to form a fully bonded sealing frame 3 to ensure sufficient reliability of the product, and the thickness of the overlapping part is required, especially the thickness of the transfer point 4 and the sealant frame 3 after printing It must be controlled, otherwise it will cause the transfer point 4 and the thickness of the sealant frame 3 to be inconsistent, resulting in overall unevenness, which will affect the thickness of the liquid crystal display box

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