Method for controlling screen printing processing of liquid crystal display

Abstract

The invention relates to a method for controlling screen printing processing of a liquid crystal display. The method is characterized by comprising the following steps of: manufacturing a simulation orientation layer before a screen printing process of the orientation layer; judging whether the simulation orientation layer accords with the sample sealing standard; performing the screen printing process of the orientation layer under the condition that the simulation orientation layer accords with the sample sealing standard; comparing the simulation orientation layer with the sample sealing standard to determine whether to perform screen printing process of the orientation layer, so that the aim of controlling the screen printing degree of the orientation layer on line is fulfilled, the condition that the screen printing degree of the orientation layer does not meet the requirement can be detected in advance, the product yield is improved, and manufacturing cost is lowered; and whether the simulation orientation layer accords with the sample sealing standard is judged only once, and the subsequent screen printing process of the orientation layer is performed on a large scale, the time required by judging whether the simulation orientation layer accords with the sample sealing standard is short in the whole production process, so that the control method does not influence production progress.

Description

technical field [0001] The invention relates to a method for manufacturing a liquid crystal display, in particular to a method for controlling the screen printing process of a liquid crystal display. Background technique [0002] Liquid crystal displays have been widely used in commercial and industrial fields. As data display terminals, liquid crystal displays are also increasingly used in vehicle-mounted and airborne display devices. With the development of science and technology, the display technology of liquid crystal display is more and more mature. However, the manufacturing process of liquid crystal displays is complicated, and there are still many shortcomings and some difficult control difficulties in the manufacturing process. [0003] The process of liquid crystal display is generally divided into pre-process and post-process. The pre-process mainly includes graphics production, alignment layer coating, alignment layer screen printing and other processes, and th...

AI Technical Summary

Problems solved by technology

This makes it very difficult to judge and determine the damage of the screen node 08 to the alignment layer 04 in the screen printing process of the alignment layer 04 without filling the liquid crystal cell and powering it on, even if the first one is produced on the production line After one liquid crystal cell, the liquid crystal cell is tested, and when the poor screen printing of the orientation layer 04 is detected, some products or even the whole batch of products have been disqualified due to the poor screen printing of the orientation layer 04, resulting in difficulties. Recovered loss, lower product yield

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