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Liquid crystal display orientation layer material and preparing method thereof

A technology selected from polymers, applied in the field of polymers, can solve the problems that cannot be fully met, cannot meet the needs, and the active alignment film technology is not mature enough.

Inactive Publication Date: 2004-06-16
ETERNAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current active alignment film technology is not mature enough.
[0007] The above-mentioned methods can provide certain effects for the alignment of liquid crystals, but they all have their disadvantages, and cannot fully meet the requirements for using liquid crystals in the alignment layer, so these methods cannot meet the needs of the current market

Method used

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  • Liquid crystal display orientation layer material and preparing method thereof
  • Liquid crystal display orientation layer material and preparing method thereof
  • Liquid crystal display orientation layer material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043]Embodiment one: the synthesis of prepolymer BP-AN

[0044] Add 29 grams (0.074 moles) of bisphenol A epoxy resin and 6.74 milliliters (0.074 moles) of aniline in a single-necked flask equipped with a stirrer, and use an oil bath to control the temperature at 60-130 ° C to react to obtain a slightly Yellow blocky solid. This solid was dissolved in 100 mL CHCl 3 After dissolving, the polymer was precipitated with 500 milliliters of acetone, and the precipitate was dried in a vacuum oven. The final product was the prepolymer BP-AN of layered solid.

Embodiment 2

[0045] Embodiment two: the synthesis of prepolymer PP-MAN

[0046] Add 0.69 g (0.0065 mole) of o-methylaniline to 1.6 g (0.0072 mole) of hydroquinone epoxy resin, and use an oil bath to control the temperature at 60-130° C. for the reaction. Then the product was dissolved in THF and gradually added to CCl 4 In the middle, a white precipitate is produced, and finally the prepolymer BP-MAN is obtained by drying in a vacuum oven.

Embodiment 3

[0047] Embodiment three: the synthesis of prepolymer DP-EAN

[0048] Add 0.69 gram (0.0058 mol) m-ethylaniline in 2.15 gram (0.0072 mol) biphenol epoxy resin, react at 60-130 ℃ with oil bath control temperature, obtain white solid product, then use solid After the DMF was dissolved, it was gradually added to water, and precipitated immediately, and finally dried in a vacuum oven to obtain the prepolymer DP-EAN.

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Abstract

The invention provides a polymer having a formula (I) described in the specification, wherein X, n, R1, R2, x and y are defined in the specification. The invention also discloses the process for preparing the polymer and the liquid crystal orientation layer material containing the polymer.

Description

field of invention [0001] The invention relates to a polymer used for an alignment layer of a liquid crystal display (Liquid Crystal Display, LCD) and a preparation method thereof. Background of the invention [0002] Liquid crystal flat panel display has become a star industry due to its advantages such as lightness, thinness, shortness, smallness, and energy saving. There are two polarizers, a color filter array and an alignment film in the liquid crystal display, which can determine the maximum value of luminous flux and the generation of color. The liquid crystal layer is located between two glass sheets. When a voltage is applied to the alignment layer, an electric field is generated to align the liquid crystals at the interface of the alignment layer in a certain direction. [0003] The liquid crystals filled in high-quality liquid crystal displays need to have a stable and uniform initial alignment. The thin layers that control the alignment of liquid crystals in li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/38
Inventor 朱文崇白鹤于海峰连彦青王晓工
Owner ETERNAL MATERIALS CO LTD