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Frame glue coating device and coating method

A coating device and sealant technology, which is applied to devices and coatings that apply liquid to the surface, can solve the problems of thick overlapped area of ​​sealant coating and difficult to accurately control the spit volume, etc., so as to avoid light leakage and reduce Over-coarse, quality-improving effect

Active Publication Date: 2017-09-29
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a frame glue coating device and a coating method that can accurately control the discharge amount by controlling the voltage, so as to solve the problem that the existing frame glue coating device is difficult to accurately control the discharge amount, and then cause the frame glue coating Technical issue with too thick in overlapping areas of

Method used

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  • Frame glue coating device and coating method
  • Frame glue coating device and coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Please refer to figure 2 , which is a block diagram of the frame glue coating device in Embodiment 1 of the present invention.

[0046] The seal coating device 20 includes: a storage channel 21 , a coating needle 22 , a piezoelectric ceramic 23 , a voltage control terminal 24 , and a distance control terminal 25 .

[0047] Please also see figure 2 , image 3 and Figure 4 , respectively showing the block diagram of the frame glue coating device 20 , the cross-sectional view in operation, and the partial enlarged diagram of the coating needle and piezoelectric ceramics.

[0048] The storage channel 21 is used for storing the sealant.

[0049] The coating needle 22 is connected to the storage channel 21 and is used for coating the sealant on a predetermined area of ​​the substrate.

[0050] Piezoelectric ceramics 23 are wrapped around the outlet of the coating needle 22 and connected to the voltage control terminal 24 and the distance control terminal 25 for contro...

Embodiment 2

[0063] Please refer to Figure 7 , which is a schematic flow chart of the frame glue coating method in the embodiment of the present invention.

[0064] The frame glue coating method includes:

[0065] In step S701, the sealant is stored in the storage channel.

[0066] In step S702, a preset area is set on the substrate, and a start area and an end area are selected in the preset area, wherein the start area coincides with the end area.

[0067] Specifically, it is connected to the coating needle through a distance control end, and is used to control the operation of the coating needle in the preset area to form a coated sealant. Please refer to Figure 5 for the specific frame rubber running area, starting area, and ending area, and will not be described here.

[0068] In step S703, the voltage control terminal is connected to the piezoelectric ceramic to output the different voltages.

[0069] Specifically, the voltage control terminal calculates different deformation pa...

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Abstract

The present invention provides a sealant coating device and a coating method, wherein the coating device comprises: a storage channel for storing the sealant; a coating needle connected to the storage channel for presetting the sealant on the substrate The sealant is coated on the area; piezoelectric ceramics are wrapped at the outlet of the coating needle to generate corresponding deformation by receiving different voltages to control the size of the outlet of the coating needle, so that the The start area of ​​the sealant is complementary to the output volume of the end area. The present invention deforms the piezoelectric ceramics by adjusting different voltage ranges, and then precisely controls the spit amount of the sealant coating needle, so as to reduce the excessively thick phenomenon in the overlapping area of ​​the plastic frame, thereby improving the quality of the liquid crystal display panel, avoiding light leakage, etc. Phenomenon.

Description

technical field [0001] The invention relates to the technical field of frame glue coating for liquid crystal display panels, in particular to a frame glue coating device and a coating method. Background technique [0002] The liquid crystal display panel is formed by combining the array substrate and the color filter substrate, and injecting liquid crystal molecules 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, a sealant is required. The position of the sealant is located around the liquid crystal display panel. [0003] Such as Figure 1A Shown is a commonly used frame glue coating device 10 , including: a storage channel 11 , a coating needle 12 , a base plate 13 and a glue frame 14 . Such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C5/02B05C11/10
Inventor 朱美娜
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD