Liquid crystal composition with high transmittance and display device thereof

A technology of liquid crystal composition and compound, which is applied in the direction of liquid crystal materials, instruments, chemical instruments and methods, etc., can solve problems such as improving the transmittance of IPS liquid crystal displays that have not been mentioned in detail, and achieve suitable optical anisotropy, low Effect of driving voltage, suitable dielectric anisotropy

Active Publication Date: 2015-01-21
JIANGSU HECHENG DISPLAY TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The patent CN101270287A applied by Samsung Electronics on February 20, 2008 once disclosed a solution for mixing positive and negative liquid crystals, but it only mentioned adding positive components to negative liquid crystals, and the liquid crystals as a whole are still negative
Chisso Co., Ltd. also disclosed an experiment

Method used

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  • Liquid crystal composition with high transmittance and display device thereof
  • Liquid crystal composition with high transmittance and display device thereof
  • Liquid crystal composition with high transmittance and display device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] Each compound listed in Table 3 and the weight percentage are formulated into the liquid crystal composition of embodiment 1, which is filled between the two substrates of the liquid crystal display for performance testing, and the test data are shown in the following table:

[0110] Table 3 liquid crystal composition formula and test performance thereof

[0111]

Embodiment 2

[0113] Each compound listed in Table 4 and the weight percentage are formulated into the liquid crystal composition of embodiment 2, which is filled between the two substrates of the liquid crystal display for performance testing, and the test data are shown in the following table:

[0114] Table 4 liquid crystal composition formula and test performance thereof

[0115]

Embodiment 3

[0117] Each compound listed in Table 5 and the weight percentage are formulated into the liquid crystal composition of Example 3, which is filled between the two substrates of the liquid crystal display for performance testing, and the test data are shown in the following table:

[0118] Table 5 liquid crystal composition formula and test performance thereof

[0119]

[0120]

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PUM

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Abstract

The present invention provides a liquid crystal composition with positive dielectric anisotropy, comprising: one or more compounds selected from compounds expressed in general formula I, general formula II, and general formula III, and a combination thereof as a first component; one or more compounds selected from compounds expressed in general formula IV, general formula V, and general formula VI, and a combination thereof as a second component, the dielectric anisotropy of the first component being positive, and the dielectric anisotropy of the second component being negative. The liquid crystal composition not only maintains advantages such as fast response, a low drive voltage, a high clearing point, low rotary viscosity, appropriate optical anisotropy and appropriate dielectric anisotropy of IPS liquid crystal, but also significantly improves the transmittance of the liquid crystal display. Compared with existing IPS liquid crystal with positive dielectric anisotropy, the liquid crystal composition can improve the transmittance by 5 to 20%. The present invention further provides a liquid crystal display including the liquid crystal composition of the present invention and having an IPS display mode.

Description

technical field [0001] The present invention relates to a liquid crystal composition, in particular to a liquid crystal composition for electro-optical purposes and a liquid crystal display comprising the liquid crystal composition, in particular to a display comprising the liquid crystal composition active matrix addressing and in-plane switching ( IPS) type monitor. Background technique [0002] Liquid Crystal Display (LCD) has achieved rapid development due to its small size, light weight, low power consumption and excellent display quality, and has been widely used in portable electronic information products. As the size of LCD screens for portable computers, office applications, and video applications increases, several issues remain in order for LCDs to be used for large-screen displays and eventually to replace Cathode Ray Tube (CRT) displays need to be resolved. Such as improving viewing angle characteristics and improving response speed. The relatively narrow vie...

Claims

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Application Information

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IPC IPC(8): C09K19/44G02F1/1333
CPCC09K19/44C09K19/20C09K19/3066C09K2019/0466C09K2019/123C09K2019/301C09K2019/3016C09K2019/3019C09K2019/3021C09K2019/3027C09K2019/3422
Inventor 丁文全吴凤戴慧娟谢磊徐海彬韩文明宋晓龙陈昭远
Owner JIANGSU HECHENG DISPLAY TECHCO
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