Frame-sealing glue coating method of liquid crystal display panel and liquid crystal display panel

Abstract

The invention discloses a frame-sealing glue coating method of a liquid crystal display panel and the liquid crystal display panel. The frame-sealing glue coating method of the liquid crystal display panel comprises the following steps: determining different coating regions of the frame-sealing glue according to the sub regions with different thicknesses at the edges of the periphery of the panel; respectively determining the region thicknesses of the coating regions according to the thicknesses of the sub regions contained by the coating regions; respectively calculating the thickness of the frame-sealing glue needed by the coating regions according to and the region thickness of the coating regions and the thickness of liquid crystal in the interior of the panel; and respectively coating the frame-sealing glue with needed thickness on the different coating regions at the edges of the panel by adopting a frame-sealing glue coating device. The invention also provides the liquid crystal display panel. The invention enables the thicknesses of the coating regions in different positions to be equal after the coating regions are coated frame-sealing glue, and enables the thickness of the frame of the periphery of the panel to be uniform. Since the box thickness of the edge of the panel and the box thickness of the interior of the panel are constant, negative phenomena of the periphery, which are caused by the nonuniform thickness of the frame-sealing glue, and the display effect is greatly improved.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a method for coating a frame sealant of a liquid crystal display panel and a liquid crystal display panel. Background technique [0002] With the continuous advancement of technology, Liquid Crystal Display (hereinafter referred to as: LCD) has gradually replaced cathode ray tube display (Cathode Ray Tube; Major products in areas such as televisions and computer monitors. [0003] The principle of LCD displaying images is to apply voltage to the liquid crystal between the upper and lower glass substrates through the electrodes on the glass substrate. Since the liquid crystal display of the LCD itself does not emit light, the LCD has a backlight, and there is a polarizer between the two polarizers. Glass substrate, color filter, electrode, liquid crystal layer and transistor film. The light emitted by the backlight passes through the lower polarizer and becomes polarized light...

AI Technical Summary

Problems solved by technology

When the thickness of the area passed by the sealant is greatly different, and the thickness of the corresponding area after the infusion of liquid crystal is also greatly different, then there will be peripheral defects during the test.

like figure 2 Shown is a schematic diagram of the result of peripheral defects in the LCD panel in the prior art. Since the thickness of the area where the data side 2 is located is different from the thickness of the area where the gate side 3, data opposite side 4, and gate opposite side 5 are located, the prior art When applying the frame sealant coating method with the same thickness, the overall thickness of the area where the data side 2 is located is different from the thickness of the area where the other three sides are located after the coating is completed, and a picture will occur at the data side 2 during the test. The peripheral defects shown in part A, such as panel defects (Cell mura) or gap defects (Gap mura), etc., therefore also have a serious impact on the display effect of the LCD

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