Ultraviolet curing device for liquid crystal panel and curing method

Abstract

The invention provides an ultraviolet curing device for a liquid crystal panel, which comprises a sample stage and at least one ultraviolet curing light source, wherein the sample stage is used for placing the liquid crystal panel, the ultraviolet curing light source is arranged above the sample stage, and the ultraviolet curing device is characterized in that the radiation region of the ultraviolet curing light source is smaller than the distribution area of a sealing frame sealant which needs to be radiated by ultraviolet light for curing of the liquid crystal panel, and the ultraviolet curing light source can move above the sample stage and the surface of the liquid crystal panel for radiating the at least one sealing frame sealant which needs to be radiated for curing in the liquid crystal panel. The invention further provides a corresponding ultraviolet curing method for the liquid crystal panel. The device and the method have the advantages of being capable of saving the number of lamps used as the ultraviolet curing light sources by using the way of moving the light source for scanning to replace the fixed light source radiation way in the prior art, further reducing the manufacturing cost and the maintenance cost of the curing device and saving electrical energy.

Description

【Technical field】 [0001] The invention relates to the field of liquid crystal display manufacture, in particular to an ultraviolet curing device and a curing method for a liquid crystal panel. 【Background technique】 [0002] In the prior art, for a large-size liquid crystal panel, liquid crystal is usually filled into the panel by using a one drop filling (ODF: One Drop Filling) process. In this process, the liquid crystal material is evenly dripped on the surface of the lower glass substrate, and then the UV-cured seal is applied by a dispenser, and then the lower glass substrate is placed in a vacuum environment to carry out the upper glass substrate. Alignment, lamination and curing operations to complete the packaging of the cells in the liquid crystal panel. [0003] At present, the curing operation of the above-mentioned sealing frame glue is usually carried out by using an ultraviolet curing irradiation machine. figure 1 It is a schematic diagram of a device for UV ...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art is that the UV curing lamps must be numerous enough to spread their UV rays over the entire surface of the panel

The ODF process itself is especially suitable for large-size panels, but for large-size LCD panels, a large number of UV lamps are needed to meet the curing requirements, which undoubtedly increases the manufacturing and maintenance costs of UV lamps for curing equipment, and a large number of The UV lamp consumes a lot of electricity when it is working

In addition, in a large number of UV lamps, as long as one of the UV lamps is broken, it will affect the quality of the cumulative irradiation, and relatively affect the processing yield of the LCD panel.

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