Liquid crystal medium mixture and liquid crystal display using same

A technology of liquid crystal medium and mixture, applied in liquid crystal materials, instruments, chemical instruments and methods, etc., can solve the problems of slow reaction speed, insufficient polymer alignment force, strong alignment force, etc.

Active Publication Date: 2012-09-12
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, it is difficult for a single polymerizable monomer to achieve a favorable situation for these factors. The situation often occurs that one loses the other, such as forming a polymer with good uniformity but insufficient alignment, or strong alignment but The response speed is too slow, etc.

Method used

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  • Liquid crystal medium mixture and liquid crystal display using same
  • Liquid crystal medium mixture and liquid crystal display using same
  • Liquid crystal medium mixture and liquid crystal display using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Using a negative type liquid crystal material, its T ni is 75°C, Δn is 0.095 (25°C, 589nm), and Δε is -2.8 (25°C, 1kHz). If a certain amount of the fast-response monomer and strong alignment monomer described in the present invention are mixed into the liquid crystal material, then The desired mixture of liquid-crystalline media is obtained. The content molar ratio of the fast-response type monomer and the strong alignment type monomer is 20:100, and the total weight of the two accounts for 0.35% of the weight of the liquid crystal material. The structure of the fast-response monomer used therein is as follows, and its molecular weight is 330:

[0096]

[0097] The structure of the strong alignment monomer used is as follows, and its molecular weight is 312:

[0098]

[0099] The liquid crystal medium mixture is dropped on the prepared TFT Array substrate by ODF (One Drop Filling liquid crystal dripping) method, and combined with the CF substrate. After curing t...

Embodiment 2-5

[0101] Referring to Example 1, the difference lies in the structure and content of the fast-reaction type monomer and the strong alignment type monomer, see Table 1 below for details.

[0102] Table 1. The structure and content table of the fast-response type monomer and the strong alignment force type monomer of embodiment 2-5

[0103]

[0104] In summary, the liquid crystal medium mixture of the present invention adopts two or more polymerizable monomers with different functionalities for reasonable matching, and the reaction speed of the polymerization reaction, the uniformity of the formed polymer and the strength of the alignment force can be At the same time to achieve a balance, and all get a higher level. With liquid crystal displays using it, the optical quality and overall performance of the panel are improved, and stable mass production can be realized.

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Abstract

The invention provides a liquid crystal medium mixture and a liquid crystal display using the same. The liquid crystal medium mixture comprises a liquid crystal material, a stabilizing agent and polymerizable monomers, wherein the polymerizable monomer contains two or more than two kinds of monomers in which at least one kind of quick reaction monomer and at least one kind of high orientation force monomer are included. The liquid crystal display comprises an upper substrate and a lower substrate which are arranged in parallel and the liquid crystal medium mixture arranged between the upper substrate and the lower substrate. According to the liquid crystal medium mixture and the liquid crystal display using the liquid crystal medium mixture, two or more than two kinds of polymerizable monomers with different functionalities are matched reasonably, so that the reaction speed of monomer polymerization reaction, the uniformity of formed polymers and the strength of the orientation force can be balanced simultaneously and are high in level, the optical taste and general expression of a panel can be improved, and the stable volume production can be realized.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a liquid crystal medium mixture and a liquid crystal display using the same. Background technique [0002] The liquid crystals used in TN (Twisted nematic) or STN (Super twisted nematic) liquid crystal displays are positive liquid crystals, and the long axis of liquid crystal molecules is parallel to the surface of the substrate when no power is applied. The alignment direction of the liquid crystal molecules on the surface of the substrate is determined by the rubbing direction of the alignment layer (Alignment layer, usually made of Polyimide). In a continuous twisted arrangement. When a voltage is applied, the long axes of the liquid crystal molecules tend to align along the direction of the electric field. The disadvantage of TN / STN liquid crystal displays is that the viewing angle is small, and the brightness difference and color difference are serious under large viewi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/52G02F1/1333
CPCC09K19/062C09K19/3028C09K19/3068C09K19/322C09K2019/0448C09K2019/122C09K2019/3016C09K19/3405C09K19/3491C09K19/52C09K19/04C09K19/3852C09K2019/3075C09K2019/546C09K2323/00
Inventor 钟新辉黄宏基
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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