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Liquid crystal display device and manufacturing method thereof

A technology of a liquid crystal display device and a manufacturing method, which is applied in the directions of optics, instruments, nonlinear optics, etc., can solve problems such as easy generation of moiré, halo effect, and large edge thickness of PI film, and achieve the effect of preventing moiré

Inactive Publication Date: 2012-07-25
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0007] 1. If a PI solution with a higher concentration is used, due to the poor diffusion effect of the PI solution with a higher concentration, it is easy to produce moiré in the area coated with the PI film, which affects the display effect
[0008] 2. If a low-concentration PI solution is used, due to the low viscosity of the PI solution, during the coating process of the PI film, under the action of pressure, the edge of the coating area is prone to accumulation of PI solution, making the thickness of the PI film edge ratio The middle area is large, resulting in a halo effect, which affects the display effect of the display area in the sealant

Method used

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  • Liquid crystal display device and manufacturing method thereof
  • Liquid crystal display device and manufacturing method thereof
  • Liquid crystal display device and manufacturing method thereof

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Embodiment Construction

[0026] A detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0027] refer to figure 1 and figure 2 , figure 1 It is a side view of the first embodiment of the liquid crystal display device of the present invention. figure 2 yes figure 1 side view. In this embodiment, the liquid crystal display device includes a first substrate 101 , a sealant 103 , a second substrate 105 and a liquid crystal layer (not shown).

[0028] The inner surface of the first substrate 101 is provided with a first PI film 102 . A second PI film 104 is disposed on the inner surface of the second substrate 105 . Wherein, the first PI film 102 and the second PI film 104 are obtained by drying a PI solution with a solid content concentration lower than 7%. After drying, the thickness of the first PI film 102 and the second PI film 104 is 0.1 micron. In a preferred embodiment, the solid content concentration of the PI solution ranges fro...

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Abstract

The invention discloses a liquid crystal display device and a manufacturing method thereof. The manufacturing method comprises: coating polyimide (PI) solution on at least part of an area of the inner surface of a first base plate to form a first PI film; coating the PI solution on at least part of an area of the inner surface of a second base plate to form a second PI film; coating frame glue on the second PI film; and enabling the first base plate to be aligned and jointed with the second base plate, and enabling the frame glue to be jointed with the first PI film. By the method, the moire effect and the halo effect can be reduced, and the display effect is improved.

Description

technical field [0001] The invention relates to the field of liquid crystals, in particular to a liquid crystal display device and a manufacturing method thereof. Background technique [0002] The function of the alignment film is to arrange the liquid crystal molecules in a specific direction, so as to facilitate the driving of the liquid crystal display device. Therefore, alignment treatment must be performed on the inner surfaces of the first substrate and the second substrate during the production process of the liquid crystal display device. [0003] The prior art generally adopts the following methods for alignment processing: [0004] 1. Coat the PI solution (Polyimide, polyimide solution) in the area surrounded by the sealant of the first substrate to form the first PI film, and then use a rubbing cloth to rub a specific orientation on the first PI film. Groove for alignment; [0005] 2. Coating the PI solution on the area surrounded by the sealant on the second s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1339G02F1/1341
CPCG02F1/1343G02F1/133723G02F1/1341G02F1/1337
Inventor 刘明丁涛
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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