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Method for coating peripheral auxiliary frame sealing glue, liquid crystal substrate, and box butting method and structure

A frame sealing glue and coating technology, which is applied in nonlinear optics, instruments, optics, etc., can solve the problems of uneven thickness, affecting display quality, deformation and other problems in the liquid crystal display area, so as to avoid bubble defects and peripheral defects Effect

Active Publication Date: 2015-04-01
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors have found that there are at least the following problems in the prior art: for the completely enclosed peripheral auxiliary frame sealant 11, such as image 3 As shown, after the vacuum box is assembled, the box inner space 9 surrounded by the two substrates 4, 5 and the peripheral auxiliary sealing glue 11 is in a vacuum state except the liquid crystal display area 3 (the liquid crystal display area 3 is filled with liquid crystal 31, spacer bedding 6, etc.), so the vacuum part of the box inner space 9 will be deformed by the effect of the external atmospheric pressure, thereby causing the uneven thickness of the box in the peripheral part of the liquid crystal display area 3, and affecting the display quality
In short, the existing peripheral auxiliary frame sealing technology cannot avoid peripheral defects and air bubble defects at the same time

Method used

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  • Method for coating peripheral auxiliary frame sealing glue, liquid crystal substrate, and box butting method and structure
  • Method for coating peripheral auxiliary frame sealing glue, liquid crystal substrate, and box butting method and structure
  • Method for coating peripheral auxiliary frame sealing glue, liquid crystal substrate, and box butting method and structure

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Embodiment 1

[0047] An embodiment of the present invention provides a method for coating peripheral auxiliary frame sealant, including:

[0048] prepare as Figure 4 In the color filter substrate 4 shown, on the color filter substrate 4, there are sealant guide structures 7 on both sides of the entire coating path 8 where the peripheral auxiliary frame sealing tape is expected to be formed, and the coating path 8 will be more A liquid crystal display area 3 is surrounded by it. The sealing glue guiding structure 7 is used to guide the peripheral auxiliary sealing glue to flow along the coating path 8, and the height of the sealing glue guiding structure 7 can be equal to the height (i.e., box thickness) of the peripheral auxiliary sealing tape that is expected to be formed. The distance between the sealant guide structures 7 on both sides of the path 8 may be equal to the width of the coating path 8 (ie, the width of the peripheral auxiliary frame sealing tape that is expected to be forme...

Embodiment 2

[0054] An embodiment of the present invention provides a liquid crystal display substrate, such as Figure 4 As shown, it is a color filter substrate 4, and has a glass substrate, on which there are various film layers and a plurality of liquid crystal display areas 3; and the color filter substrate 4 also includes:

[0055] The sealant guide structure 7 in the first embodiment above is located on both sides of the entire coating path 8, and the coating path 8 surrounds a plurality of liquid crystal display areas 3;

[0056] Spacers 6, these spacers 6 are conventional structures in existing color filter substrates, and mainly play the role of providing support between the two substrates of the liquid crystal display panel, usually by photolithography process (coating + exposure + development) Manufacture; preferably, the sealing glue guiding structure 7 and the spacer 6 are formed in the same photolithography process, so as to simplify the manufacturing process of the color fi...

Embodiment 3

[0065] An embodiment of the present invention provides a box alignment method, including:

[0066] S01. Apply the peripheral auxiliary photoresist 11 on the color filter substrate 4 by using the coating method of the first embodiment above.

[0067] S02, such as Figure 12 As shown, the color filter substrate 4 and the array substrate 5 are boxed together in a vacuum environment, and the peripheral auxiliary sealant 11 gradually flows into the reserved section 81 under the pressure of boxing.

[0068] S03. Before the peripheral auxiliary frame sealant fills the reserved section 81 (that is, to close the reserved section 81), the environment is vacuumed (for example, the atmospheric environment is restored), and the air (or inert gas specially filled) is passed through the vent 71 from the The reserved section 81 flows into the box inner space 9 defined by the peripheral auxiliary sealant 11 , the color filter substrate 4 , and the array substrate 5 .

[0069] S04, such as ...

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Abstract

The invention provides a method for coating peripheral auxiliary frame sealing glue, a liquid crystal substrate, a box butting method and a box butting structure, belongs to the technical field of liquid crystal display, and can solve the problem that poor peripheries and poor bubbles cannot be avoided by the conventional technology for coating the peripheral auxiliary frame sealing glue. The coating method comprises the following steps of: coating the peripheral auxiliary frame sealing glue along a coating path, wherein the total amount of the coated peripheral auxiliary frame sealing glue ensures that the coated peripheral auxiliary frame sealing glue forms an enclosed peripheral auxiliary frame sealing glue belt after box butting, the coating path comprises a preservation section of which two sides are provided with frame sealing flue guide structures, and is not coated or coated with a mall amount of frame sealing glue, and the frame sealing flue guide structures are provided with vents communicating two sides of the coating path. The liquid crystal display substrate and the box butting structure respectively comprise the frame sealing flue guide structures. The box butting method comprises the following steps of: butting a box under vacuum; and removing the vacuum before a space in the box is enclosed by the peripheral auxiliary frame sealing glue. The invention can be used in a process for manufacturing a liquid crystal display panel.

Description

technical field [0001] The invention relates to a sealant coating technology of a liquid crystal display substrate and a box alignment technology, in particular to a method for coating peripheral auxiliary sealant, a liquid crystal substrate, a box alignment method and a structure. Background technique [0002] In the process of manufacturing liquid crystal displays, it is necessary to vacuum-box the color filter substrate and the array substrate. Such as figure 1 , 2 As shown, the color filter substrate 4 is coated with a main sealant 2 and auxiliary sealants 11, 12, wherein the main sealant 2 is close to the edge of the liquid crystal display area 3, and is used to combine and seal the liquid crystal display panel. Two substrates; and the auxiliary sealant 11, 12 is used to provide better support and protect the main sealant 2 during the box alignment process, which will be cut off in the subsequent cutting process. The auxiliary frame sealants 11 and 12 include interna...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1339G02F1/1333
Inventor 姚继开张志男
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD