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Liquid crystal display device containing nano polymer network and its manufacturing method

A liquid crystal display and nano-polymer technology, which is applied in the direction of chemical instruments and methods, liquid crystal materials, instruments, etc., can solve the problems of not being able to manufacture polymer networks, etc., and achieve increased spectral range, simplified preparation steps, and uniform Bragg reflection. Effect

Inactive Publication Date: 2005-07-20
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

but failed to create a polymer network inside the liquid crystal

Method used

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  • Liquid crystal display device containing nano polymer network and its manufacturing method
  • Liquid crystal display device containing nano polymer network and its manufacturing method
  • Liquid crystal display device containing nano polymer network and its manufacturing method

Examples

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Effect test

Embodiment 1

[0060] Adding 39% CB15 (E.Merck) with a total weight of 39% in the brand YM8 (Yantai Wanrun Fine Chemical Co., Ltd.), such a mixed liquid crystal is a cholesteric liquid crystal, and its optical pitch is about 580 nanometers, corresponding to orange wavelength of yellow light. Then 5% to 15% of the total weight of ethylene glycol dimethacrylate is added, for example 10% of ethylene glycol dimethacrylate is added. It is best to add 2 to 5% benzophenone as a photoinitiator. Stir the above mixture to obtain a liquid crystal-monomer mixture. Take two pieces of clean glass with ITO (indium tin oxide) transparent conductive film material, and make a liquid crystal box according to the conventional process (no alignment agent is applied to the transparent conductive film, and no other treatment is required.), the thickness of the control box is About 10 microns, the electrodes on the upper and lower glass plates are drawn out by known technology. The above-mentioned liquid crystal...

Embodiment 2

[0062] Add 39% CB15 (E.Merck) with a total weight of 39% in the brand YM8 (Yantai Wanrun Fine Chemical Co., Ltd.), such a mixed liquid crystal is a cholesteric liquid crystal, and its optical pitch is about 520 nanometers, corresponding to green in visible light the wavelength of light. Then add the total weight (y-x)% of ethylene glycol dimethacrylate, x% of acrylic compounds, such as methyl methacrylate, wherein the value range of y is 5 to 15, and the value range of x is ( 0~0.8)y. For example, 6% ethylene glycol dimethacrylate, 6% butyl methacrylate. It is best to add 2 to 5% benzophenone as a photoinitiator. Stir the above mixture to obtain a liquid crystal-monomer mixture. Take two pieces of clean glass with ITO (indium tin oxide) transparent conductive film material, and make a liquid crystal box according to the conventional process (no alignment agent is applied to the transparent conductive film, and no other treatment is required.), the thickness of the control b...

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Abstract

This invention discloses the structure and manufacturing method of a kind of liquid crystal display containing nanometer polymer nets. It is composed of liquid crystal case whose inside surface has transparent electric membrane, the Guts Zi's type of liquid crystal charged in the liquid crystal case, the polymer membrane covered on the transparent electric membrane and produced by the phase disengagement means, and the polymer nets in the liquid crystal. This display has two steady states as the colorless transparent one and the white reflecting one in the zeroth electric field. When lay a black screen behind the display, it can display figures of white bottom with black words or black bottom with white words. This display has the characteristics as simply producing technics, bright displayed grounding, high contrast ratio and so on.

Description

technical field [0001] The invention belongs to the field of flat panel display in optoelectronic technology, and in particular relates to the structure of a display manufactured by using a compound of a polymer and a liquid crystal as a display medium. Background technique [0002] Displays made of composites of liquid crystals and polymers mainly include "polymer dispersed liquid crystal" (PDLC: Polymer Dispersed Liquid Crystal) and "polymer network liquid crystal" (PNLC: Polymer Network Liquid Crystal). The structure and manufacturing method of the compound composed of the above-mentioned liquid crystal and polymer have been published in many domestic and foreign documents, and are well known. [0003] The structure of PDLC is characterized by liquid crystal droplets wrapped in polymers, and the size of the droplets is generally less than 10 microns. In the absence of an external electric field, the direction of the directors of liquid crystals in different microdroplets...

Claims

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Application Information

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IPC IPC(8): C09K19/00C09K19/36G02F1/13
Inventor 黄子强杨文君王继岷
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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