Liquid crystal display device and substrate to be used for liquid crystal display device, and methods for producing the same

A technology of liquid crystal display devices and substrates, which is applied in identification devices, static indicators, optics, etc., can solve problems such as unclear design methods of cylindrical spacers, uneven illumination, and structural restrictions, so as to achieve good display quality and shorten development Effects of time, small inhomogeneities

Inactive Publication Date: 2005-12-07
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to avoid trial and error efforts, for example, it should be necessary to provide cylindrical spacers in areas that are not resin layers, resulting in limitations in the effective structure
Also, to date, design methods for cylindrical spacers in the display area and peripheral areas away from the center are unclear
There is a case where improper design of columnar spacers in the peripheral area causes variations in cell thickness around the display area and in turn makes illumination non-uniform

Method used

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  • Liquid crystal display device and substrate to be used for liquid crystal display device, and methods for producing the same
  • Liquid crystal display device and substrate to be used for liquid crystal display device, and methods for producing the same
  • Liquid crystal display device and substrate to be used for liquid crystal display device, and methods for producing the same

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Embodiment Construction

[0043] A liquid crystal display device and a manufacturing method thereof according to an embodiment of the present invention will be described below with reference to the accompanying drawings. Since the method of manufacturing a liquid crystal display device according to an embodiment of the present invention is mainly characterized by optimizing the configuration and distribution density of the columnar spacers, the configuration and distribution density of the columnar spacers will be described first.

[0044] By using various materials to be described later, the present inventors have studied the preferred configuration and distribution density of the columnar spacers, and found that, in order to suppress "low temperature air bubbles", "lower bulging" and "pressure-induced unevenness" , it is necessary for a liquid crystal display device (liquid crystal panel) to have preferred deformation characteristics. The inventors also found that the deformation characteristics of t...

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PUM

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Abstract

A liquid crystal display device capable of optimizing the configuration and distribution density of columnar spacers for reducing low-temperature bubbles, lower bulging and the unevenness of pressure-induction is provided. The liquid crystal display device comprises a plurality of columnar partition structures arranged between a pair of substrates, each columnar partition structure includes at least one resin layer, the spring modulus Kpt in a unit area of a display area is not less than 0.00008 N / mum<3> and not more than 0.00237 mN / mum<3>, the spring modulus Kpt is defined as kxn / S, wherein, k is a spring modulus of each columnar partition structure and the unit is mN / mum; S is the area of the display area; n is the number of columnar partition structures in the display area.

Description

technical field [0001] The present invention relates to a liquid crystal display device having a columnar spacer, a substrate for a liquid crystal display device, and a method of manufacturing such a liquid crystal display device and such a substrate. Background technique [0002] As the range of applications of liquid crystal display devices expands, higher performance is also achieved. In particular, display modes featuring wide viewing angles, such as MVA and IPS, have been developed and are receiving further improvements. [0003] In order to improve the display quality of a liquid crystal display device, it is necessary to precisely control the thickness of the liquid crystal layer (also referred to as "cell gap" or "cell thickness") regardless of the adopted display mode. In particular, in large-sized liquid crystal display devices put into use in recent years, it is necessary to control the cell gap uniformly across a large area. [0004] The cell gap is controlled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133
Inventor 山田直津幡俊英
Owner SHARP KK
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