Liquid crystal display

A liquid crystal display and polyimide technology, applied in static indicators, instruments, nonlinear optics, etc., to achieve the effects of reducing optical hysteresis, improving dimensional stability, and high heat resistance

Active Publication Date: 2012-05-23
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the removal process, the TFT component is often disconnected and the adhesive surface often has residual glue that cannot be completely removed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: the synthesis of 6FDA-DACH (PI-FD)

[0044]

[0045] At room temperature, use a three-necked flask and pass through nitrogen, dissolve 2.32g of DACH diamine into 41g of DMAc, and then add 5g of 6FDA bis-anhydride until 6FDA is completely dissolved, and continue stirring for 3 hours , forming a viscous polyamic acid solution. Then use a doctor blade to form a film on the glass substrate, and then heat it to 100°C, 200°C and 300°C for 1 hour and bake for imidization reaction to form a highly transparent and colorless polyimide film material.

Embodiment 2

[0046] Embodiment 2: Synthesis of 6FDA-m-TB-HG-co-6FDA-IPDA (PI-FTI)

[0047]

[0048] At room temperature, using a three-necked flask with nitrogen, 1.64 g of m-TB-HG (2,2'-Dimethyl-4,4'-diamino biphenyl, 2,2'-dimethyl-4,4' -Diaminobiphenyl) and 0.56g of IPDA (Isophorone diamine, isophorone diamine) diamine are dissolved in 41g of DMAc, and then 5g of 6FDA bis-acid anhydride is added after m-TB-HG and IPDA are completely dissolved , until the 6FDA was completely dissolved, and continued to stir for 3 hours to form a viscous polyamic acid solution. Then use a doctor blade to form a film on the glass substrate, and then heat it to 100°C, 200°C and 300°C for 1 hour and bake for imidization reaction to form a highly transparent and colorless polyimide film material.

Embodiment 3

[0049] Example 3: Synthesis of 6FDA-m-TB-HG-co-6FDA-DACH (PI-FTD)

[0050]

[0051] At room temperature, use a three-necked flask and pass through nitrogen, dissolve 1.63g of m-TB-HG and 0.70g of DACH diamine into 42g of DMAc, and then dissolve 5g of m-TB-HG and DACH Add 6FDA bis-acid anhydride until 6FDA is completely dissolved, then continue stirring for 3 hours to form a viscous polyamic acid solution. Then use a doctor blade to form a film on the glass substrate, and then heat it to 100°C, 200°C and 300°C for 1 hour and bake for imidization reaction to form a highly transparent and colorless polyimide film material.

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Abstract

The invention provides a liquid crystal display device, comprising a colorful filter baseboard and an array baseboard, one of which is made from polyimide, wherein the polyimide compound has the formula (1), while A and A' are different or same, containing annular aliphatic compound or aromatic compound, at least one of A and A' is annular aliphatic perssad, B and B' are different or same, containing annular aliphatic perssad or aromatic compound, x and y are 10-10000.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a liquid crystal display with a polyimide substrate. Background technique [0002] With the advent of the digital age of information, people are increasingly dependent on electronic products, which has accelerated the popularization of electronic products. In order to make the product lightweight, thin, and easy to carry, the thickness of the substrate of the liquid crystal display device must be reduced downwards. However, the thin glass substrate is not easy to manufacture and the yield rate is not good, and it may also cause inconvenience in transportation. [0003] For this reason, the industry introduces transparent and flexible plastic substrates (0.1-0.2mm) as new display panels, making them thin, lightweight, impact-resistant, not easy to break, easy to carry, curved surface display, rollable and Wearable and other characteristics, and the introduction of transparent flexible...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G02F1/1335G02F1/133
Inventor田宏隆吕奇明张含章李宗铭
OwnerIND TECH RES INST