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Vertical alignment type liquid crystal display device and manufacturing method thereof

A liquid crystal display device and vertical alignment technology, which can be applied to other household appliances, instruments, polarizing elements, etc., can solve the problems of loss of advantages and achieve the effects of enlarged viewing angle, improved frontal contrast, and reduced color shift

Active Publication Date: 2015-09-09
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As far as this method is concerned, the color shift of the original vertical alignment liquid crystal display device is small, but this structure loses the original advantages of the vertical alignment liquid crystal display device.

Method used

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  • Vertical alignment type liquid crystal display device and manufacturing method thereof
  • Vertical alignment type liquid crystal display device and manufacturing method thereof
  • Vertical alignment type liquid crystal display device and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0316] Hereinafter, although an Example is given and this invention is demonstrated, this invention is not limited to these Examples.

[0317] (film production)

[0318]

[0319] Microparticles (Aerosil R972V (manufactured by Japan Aerosil Co., Ltd.))

[0320] 11 parts by mass

[0321] (Average particle diameter of primary particles 16nm, apparent specific gravity 90g / L)

[0322] 89 parts by mass of ethanol

[0323] The above substances were stirred and mixed with a dissolver for 50 minutes, and then dispersed with a homogenizer (Manton-Gaulin) to obtain a fine particle dispersion.

[0324]

[0325] Add cellulose acetate (degree of acetyl substitution: 2.10, Mn=140000) to a dissolving tank with methylene chloride, heat to dissolve it completely, and use Azumi filter paper manufactured by Azumi Filter Paper Co., Ltd. No.244 is filtered. While fully stirring the filtered cellulose acetate solution, slowly add the above-mentioned...

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PUM

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Abstract

The present invention addresses the issue of providing: a vertically aligned liquid crystal display device, which achieves improved front contrast that makes it possible to save power, and which has a reduced color shift and a wider view angle; and a method for manufacturing such vertically aligned liquid crystal display device. A vertically aligned liquid crystal display device of the present invention has: a backlight; a vertically aligned liquid crystal cell having a configuration wherein a liquid crystal having negative dielectric constant anisotropy is sandwiched between two transparent substrates; and polarization plates, which are disposed on the display surface side and the backlight side of the vertically aligned liquid crystal cell, respectively. The vertically aligned liquid crystal display device is characterized in meeting specific requirements.

Description

technical field [0001] The present invention relates to a vertical alignment type liquid crystal display device with improved front contrast related to power saving, reduced color shift, and enlarged viewing angle, and a manufacturing method thereof. Background technique [0002] Currently, liquid crystal display devices have the advantages of being thinner and lighter, being able to be driven with a low voltage, and consuming less power than CRTs (Cathode Ray Tubes). Therefore, the liquid crystal display device can be used in various electronic devices such as televisions, notebook PCs (personal computers), desktop PCs, PDAs (portable terminals), and mobile phones. [0003] In recent years, vertical alignment type (also called "VA (Vertical Alignment) type") liquid crystal display devices using vertical alignment type liquid crystals (liquid crystals with negative dielectric anisotropy) and existing TN type liquid crystal display devices In comparison, the viewing angle ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13363G02B5/30G02F1/1335
CPCG02F1/13363G02F2001/133742G02B5/3025B29D11/00807G02F1/133742G02B5/30G02F1/1335
Inventor 梅田博纪稻垣绚子矢野健太郎
Owner KONICA MINOLTA INC
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