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Compound, liquid crystal composition, liquid crystal display element and liquid crystal display device

A technology for liquid crystal compositions and compounds, applied in the directions of liquid crystal materials, chemical instruments and methods, instruments, etc., can solve the problem of high manufacturing costs, achieve lower production costs, wide nematic phase temperature range, and good UV resistance. Effect

Active Publication Date: 2020-05-12
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problem of high manufacturing cost caused by the manufacture of the alignment layer, and to obtain a liquid crystal composition that can align liquid crystal molecules in a certain direction without using an alignment layer, the present inventors conducted in-depth research and found that by using the liquid crystal Composition containing the compound of the present invention can solve this problem, thus completing the present invention

Method used

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  • Compound, liquid crystal composition, liquid crystal display element and liquid crystal display device
  • Compound, liquid crystal composition, liquid crystal display element and liquid crystal display device
  • Compound, liquid crystal composition, liquid crystal display element and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0173]

[0174] step 1

[0175]

[0176] Add 38.2g (0.10mol) of (1-a), 0.12mol of triphenylphosphine, and 0.12mol of imidazole into a 1L three-neck flask, add 500ml of dichloromethane, stir to dissolve, and lower the temperature. At 0°C, under the protection of nitrogen, 17.6 g (0.11 mol) of liquid bromine was added dropwise, the reaction was exothermic, the protective gas was removed, and the addition was completed in about 30 minutes, and then stirred at room temperature for 2 hours after the addition. Add sodium bisulfite aqueous solution dropwise to the reaction system to quench the reaction, wash with water, dry, and concentrate to obtain a viscous solid, which is dissolved by adding 2 times petroleum ether, and the clear liquid is passed through a silica gel column, washed with petroleum ether, concentrated and the net solvent is anhydrous Recrystallized from ethanol to obtain 35.5g of white crystals (1-b), GC: 99.2%, yield: 80%

[0177] step 2

[0178]

[017...

Embodiment 2

[0181]

[0182] step 1

[0183]

[0184] Synthetic method and reaction conditions refer to Step 1 of Example 1, and compound (2-b) can be prepared by those skilled in the art.

[0185] step 2

[0186]

[0187] For the synthesis method and reaction conditions, refer to Step 2 of Example 1, and compound I14 can be prepared by those skilled in the art.

Embodiment 3

[0189]

[0190] step 1

[0191]

[0192] Synthesis method, reaction conditions refer to step 1 of Example 1, those skilled in the art can prepare compound (3-b)

[0193] step 2

[0194]

[0195] For the synthesis method and reaction conditions, refer to Step 2 of Example 1, and compound I26 can be prepared by those skilled in the art.

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Abstract

The invention relates to a compound, a liquid crystal composition, a liquid crystal display element and a liquid crystal display device, wherein the compound is a compound represented by a formula I defined in the specification. According to the invention, by using the liquid crystal composition containing the compound represented by the following formula I, a liquid crystal display element or a liquid crystal display device capable of aligning liquid crystal molecules in a certain direction without using an alignment layer can be manufactured, so that the manufacturing process of the liquid crystal display element or the liquid crystal display device is simplified, the cost is saved, the defect that the display effect is poor due to the fact that the alignment layer is poor in manufacturing yield, heat resistance and aging resistance is overcome, and the performance and the production efficiency of the liquid crystal display element or the liquid crystal display device are further improved.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display, and more specifically relates to a compound used in a liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display element or a liquid crystal display containing the compound or the liquid crystal composition. Background technique [0002] With the development of display technology, liquid crystal display devices (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, TVs, Various consumer electronic products such as personal digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices. [0003] At present, in commonly used liquid crystal display devices (LCD), there is a layer of thin film material on the color filter substrate and the TFT substrate respectively, and its main function is to arrange the liquid crystal molecules in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K19/46G02F1/1333
CPCC09K19/46G02F1/1333
Inventor 员国良梁志安李明孟劲松李正强
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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