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Liquid crystal photoelectric component with compensating coating, and its prepn. process

A technology for optoelectronic components and coatings, applied in polarizing components, optics, nonlinear optics, etc., can solve problems such as increasing complexity, limiting the potential thickness of coatings, and achieving the effect of easy manufacturing

Inactive Publication Date: 2004-03-10
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This limits the potential thickness of the coating
At the same time, this coating must also be pixi1ated, which adds to its complexity
Finally, the patent teaches that color filter arrays can only be located on constrained inner surfaces

Method used

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  • Liquid crystal photoelectric component with compensating coating, and its prepn. process
  • Liquid crystal photoelectric component with compensating coating, and its prepn. process
  • Liquid crystal photoelectric component with compensating coating, and its prepn. process

Examples

Experimental program
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Embodiment 1

[0048] Example 1: Polymer I (synthesis):

[0049] At 10°C, 4,4'-hexafluoroisopropylidene-bisphenol (33.62 g, 0.1 mole) and triethylamine (22.3 g, 0.22 mole) were mixed in dichloromethane (200 mL), and the Terephthaloyl chloride (10.15 g, 0.05 mole) and isophthaloyl dichloride (10.15 g, 0.05 mole) dissolved in dichloromethane (100 mL) was added with stirring. Then, the temperature was raised to room temperature, and the solution was stirred for 4 h under the protection of nitrogen. During this period, triethylamine hydrochloride precipitated in the form of gel, and the solution became viscous. Then, the solution was filtered and washed with dilute hydrochloric acid (100 mL, 2%), followed by three washes with water (200 mL). The resulting solution was poured into methanol with vigorous stirring, and a white fibrous polymer was precipitated. The glass transition temperature of this polymer was determined to be 199°C by differential scanning calorimetry. Poly(4,4′-hexafluorois...

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Abstract

Disclosed is a liquid crystal cell having contiguous to a surface of a constraint thereof one or more compensator layers, each containing a transparent amorphous polymeric birefringent material having an out-of plane birefringence more negative than -0.005. The invention also provides a liquid crystal display and a process for making such a cell.

Description

technical field [0001] The present invention relates to a liquid crystal photovoltaic element having a constrained outer surface adjacent to a compensating coating comprising an amorphous polymeric birefringent material having an out-of-plane birefringence of less than -0.005. The invention also provides a liquid crystal display and a method for preparing the optoelectronic element. Background technique [0002] Triacetyl cellulose (TAC, also known as cellulose triacetate) film, has been used in the traditional photographic industry due to its unique physical properties and flame retardancy. Triacetyl cellulose films are also preferred polymer films for use as protective layers for polarizer guards in liquid crystal displays. Because of its very low in-plane birefringence, triacetylcellulose films can be used as preferred materials in these fields of application. It also has a low (but non-zero) out-of-plane birefringence, which can be used to provide some optical compensa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30C08G63/193C08L67/03G02F1/1335G02F1/13363
CPCY10T428/1036G02F1/133634C08G63/193C08L67/03Y10T428/10C09K2323/00C09K2323/03G02F1/1335
Inventor J·F·埃尔曼D·J·马萨
Owner NITTO DENKO CORP