Frame sealant coating device
A technology of coating device and sealing glue, which is applied in the device, coating, optics and other directions of coating liquid on the surface, can solve problems such as affecting coating quality, glue breaking, frame sealing glue hanging glue, etc., to improve the product quality. Yield, avoid glue hanging or glue break, ensure the effect of coating quality
Active Publication Date: 2015-09-16
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0004] However, during the coating process of the frame sealant, the residual air bubbles in the frame sealant are likely to cause the sealant coated between the array substrate and the color filter substrate to hang or even break off, making the application of the frame sealant Uneven cloth will affect the quality of coating; further, the liquid crystal in the bonded liquid crystal display panel will be exposed from the broken glue to form liquid bubbles, resulting in a decrease in the product yield of the liquid crystal display panel
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[0017] refer to Figure 1 to Figure 3 , The sealing glue application device of the present invention includes a glue storage unit 10 , a bubble detection unit 11 , a flow direction control unit 12 , a nozzle 13 and a temporary storage unit 14 .
[0018] In this embodiment, the glue storage unit 10 is a cylindrical, tubular or box-shaped object connected to the flow direction control unit 12 , and includes a bottom cover (not shown) disposed at an end away from the flow direction control unit 12 . The glue storage unit 10 stores the frame sealing glue (not shown) used in the frame sealing process. Frame sealants include glue, fibers and / or gold balls.
[0019] The bubble detection unit 11 is sleeved on the end of the glue storage unit 10 close to the flow direction control unit 12 . The air bubble detection unit 11 is used to detect whether there are air bubbles in the sealant flowing from the glue storage unit 10 to the nozzle 13 . For example, the air bubble detection unit...
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The invention discloses a frame seal glue coating device. The frame seal glue coating device comprises a glue storage unit, an air bubble sensing unit, a flow direction control unit and a nozzle, wherein the glue storage unit is used for storing frame seal glue, and the air bubble sensing unit is used for sensing whether air bubbles are generated in the frame seal glue flowing to the nozzle from the glue storage unit; and the flow direction control unit controls the frame seal glue without the air bubbles to flow out of the nozzle so as to carry out a frame seal procedure, and controls the frame seal glue with the air bubbles not to reach the nozzle. The frame seal glue coating device provided by the invention can guarantee that the residual air bubbles are avoided in the frame seal glue in the frame seal procedure, thereby avoiding a glue suspending or glue breaking phenomenon of the frame seal glue which is coated on an array baseplate.
Description
technical field [0001] The invention relates to the technical field of coating frame sealing glue for liquid crystal display panels, in particular to a frame sealing glue coating device. Background technique [0002] The liquid crystal display panel is formed by combining the array substrate and the color filter substrate, and injecting liquid crystal between the two substrates. In order to seal the array substrate and the color filter substrate to cut off the contact of the liquid crystal molecules with the outside world, maintain the cell thickness between the array substrate and the color filter substrate, and ensure the display effect of the liquid crystal display panel, it is necessary to use a sealant, which is located at around the LCD panel. [0003] When the frame sealant is used for box alignment of the array substrate and the color filter substrate, the frame sealant coating device is used to coat the frame sealant. The existing frame sealing glue coating device...
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IPC IPC(8): B05C5/00B05C11/10G02F1/1339
Inventor 余少鑫
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD