Comprehensive thinning treatment process for liquid crystal display screen

Abstract

The invention discloses a comprehensive thinning treatment process for a liquid crystal display screen. The comprehensive thinning treatment process comprises the following steps of 1, sealing compound protection, 2, liquid crystal display screen pretreatment, 3, defect treatment and polishing, 4, etching liquid preparation, 5, etching pretreatment, 6, etching treatment and 7, etching aftertreatment. According to the invention, defects on the surface of the liquid crystal display screen can be slightly amplified through pretreatment before etching, defects on the surface of the liquid crystaldisplay screen are polished and ground through defect polishing treatment, so that the surface is flat and bright, through the chemical characteristics of hydrochloric acid, crystals generated after the reaction of hydrofluoric acid and glass have a temporary adhesion chemical phenomenon, through cooperative use of nitric acid and hydrochloric acid, the thickness of the liquid crystal display screen can be accurately controlled according to requirements, bubbles generated by the anti-corrosion air pipe arranged at the bottom of the etching tank pool can impact and fall off temporarily attachedcrystals, and the phenomenon of uneven etching is avoided.

Description

technical field

[0001] The invention relates to the technical field of liquid crystal display production, in particular to a comprehensive thinning process of liquid crystal display. Background technique

[0002] With the development of science, the competition in the liquid crystal display industry is becoming more and more fierce. The focus of the competition lies in the high resolution, ultra-thin and high-brightness design of the liquid crystal display, low power consumption, and ultra-thin display technology has become the market There are usually two thinning methods for liquid crystal displays, one is physical polishing and grinding, and the other is chemical etching thinning. Among them, the chemical etching thinning method is characterized by its unique advantages and are more widely used;

[0003] There will be some defects on the surface of the liquid crystal display during production, and under the uniform thinning method of chemical etching, some defect points ...

Images