Frame sealing adhesive, preparation method thereof, and preparation method of liquid crystal display panel

A liquid crystal panel and frame sealing adhesive technology, which is applied in the direction of adhesives, optics, non-polymer adhesive additives, etc., can solve the problems of poor quality of liquid crystal display, slow curing speed of epoxy resin, and reduced curing degree, so as to improve the quality of liquid crystal Display effect, avoid poor thermal conductivity, and improve curing speed

Inactive Publication Date: 2012-11-14
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1) Due to the slow curing speed of epoxy resin, the thermal curing time of the frame sealant is long and the energy consumption is relatively large, which greatly affects the production efficiency and increases the production cost
[0007] 2) The frame sealant is cured by heat from the outside to the inside. Since the epoxy resin itself is a poor conductor of heat and the heat transfer speed is slow, the thermal conductivity of the frame sealant is poor, which makes the curing speed of the inside and outside of the frame sealant different, and the temperature from the outside to the inside The gradient is large, resulting in a low degree of

Method used

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  • Frame sealing adhesive, preparation method thereof, and preparation method of liquid crystal display panel
  • Frame sealing adhesive, preparation method thereof, and preparation method of liquid crystal display panel
  • Frame sealing adhesive, preparation method thereof, and preparation method of liquid crystal display panel

Examples

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Effect test

Embodiment 1

[0049] Example 1: Preparation of frame sealant

[0050] In the embodiment of the preparation method of the frame sealant, a frame sealant capable of efficiently and uniformly sealing the liquid crystal panel is prepared mainly by adding a certain proportion of microwave absorber on the basis of the existing frame sealant. Therefore, this implementation An example of a frame sealant mainly includes: epoxy resin, acrylate, glass fiber, metal conductive ball, and a certain proportion of microwave absorber. Wherein, the microwave absorbing agent added is mainly used for absorbing microwave heat when microwave is applied, so as to cure the sealant.

[0051] It should be noted that the certain ratio refers to the percentage by weight of the microwave absorber in the sealant. Generally, the content of the microwave absorber is in the range of 1% to 8%. , The content range of microwave absorber is 2%~5%. When the content of the microwave absorber is 2%, the microwave absorber usuall...

Embodiment 2

[0058] Example 2: Using frame sealant

[0059] Such as image 3 As shown, it shows an embodiment of a method for preparing and using a sealant for sealing a liquid crystal panel. Combine below image 3 , explain the curing method of this embodiment using the prepared sealant.

[0060] A method for preparing and using a frame sealant provided in this embodiment includes the following steps:

[0061] S101: Select a microwave absorber, add the selected microwave absorber into the existing frame sealant in a certain proportion, and mix evenly to prepare a frame sealer mixed with the microwave absorber.

[0062] In this step, a microwave absorber is mixed in the frame sealant, so that the frame sealant becomes a microwave absorbing material. Here, according to the actual situation of the liquid crystal panel to be sealed, such as the use environment of the liquid crystal panel, the degree of sealing, the specific curing requirements such as curing aging, etc., the microwave abs...

Embodiment 3

[0069] Embodiment 3: Preparation of liquid crystal panel

[0070] The present invention also provides a method for preparing a liquid crystal panel correspondingly, the method comprising:

[0071] Using the sealant prepared in the preceding Example 1, according to the method of using the sealant in Example 2, apply the prepared sealant on the edge of the array substrate and / or the color filter substrate, and place it in the microwave generating equipment Carry out substrate-to-box and frame-sealing glue curing to form a liquid crystal panel.

[0072] Wherein, the curing of the sealant comprises ultraviolet curing and microwave radiation curing of the sealant.

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PUM

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Abstract

The invention discloses a frame sealing adhesive, a preparation method thereof, and a preparation method of a liquid crystal display panel. The frame sealing adhesive mainly comprises epoxy resin, acrylic ester, glass fiber and a metal conducting sphere, and also comprises a microwave absorbent. In addition, the preparation and use method of the frame sealing adhesive comprises the following steps of: selecting the microwave absorbent, adding the selected microwave absorbent in proportion into the existing frame sealing adhesive, and uniformly mixing; coating the frame sealing adhesive mixed with the microwave absorbent on an edge of an array substrate or a color film substrate; and carrying out box pairing and solidification in microwave generating equipment to form the liquid crystal display panel. Therefore, the time for solidification can be reduced, the frame sealing adhesive can be solidified uniformly, and the solidification degree is improved.

Description

technical field [0001] The invention relates to a production process of a liquid crystal display, in particular to a frame sealing glue, a preparation method thereof, and a preparation method of a liquid crystal panel. Background technique [0002] In the manufacturing process of thin-film transistor-liquid crystal display (TFT-LCD), it is necessary to combine the array substrate (TFT) and the color filter substrate (CF, Color Filter) and pour liquid crystal into it. This process is called "box matching process". Among them, the frame sealant plays the role of bonding the array substrate and the color filter substrate, forming a sealed container between the two substrates, and protecting the liquid crystal from the influence of the outside air. [0003] figure 1 It is a schematic cross-sectional structure diagram of an existing liquid crystal panel, such as figure 1 As shown, the liquid crystal panel includes: a common electrode 1, a black matrix 2, a color film resin 3, a...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/08G02F1/1339
Inventor 张飞飞邵勇
Owner BOE TECH GRP CO LTD
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