Four UV LED technology applications for LCD

With the growing era of high technology, LCD development has become a high-tech technology, UV LED application technology has played an important role in the production of LCD. The application of UV LED technology in the field of LCD is divided into the following categories:

First, UV LED exposure process

In the LCD production process, the purpose of lithography is to apply a photoresist on the ITO conductive glass according to the product design requirements, and perform ultraviolet light exposure, that is, selective irradiation, so that the photoresist in the light receiving portion is chemically reacted and changed. The solubility of this part of the film in the developer. Then, the ITO conductive layer is selectively chemically etched by the protection of the photoresist to obtain a pattern corresponding to the reticle on the ITO conductive glass.

Second, UV LED modification (UV surface quality change)

At present, in the production process of liquid crystal display STN, it is mainly used in the film processing technology, which is very effective for improving the adhesion between the film and the film, such as ITO film and photosensitive film layer, TOP coating and PI coating, etc. Wait.

Third, UV LED curing LCD sealing and sealing

The liquid crystal cell after pressing without liquid crystal is subjected to ultraviolet curing of the frame sealing glue, and the liquid crystal cell after the liquid crystal is poured is subjected to UV LED irradiation curing of the sealing glue.

Fourth, UV LED cleaning

The light cleaning technology utilizes the photosensitive oxidation of organic compounds to remove organic substances adhering to the surface of the material, and the surface of the material after light cleaning can achieve "atomic cleanliness".