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Method for manufacturing liquid crystal display device

A technology of a liquid crystal display device and a manufacturing method, which is applied to static indicators, instruments, nonlinear optics, etc., can solve problems such as color changes, and achieve the effect of suppressing the decline in display quality

Inactive Publication Date: 2012-05-23
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, strictly speaking, when the lightness of an achromatic color is changed, the color displayed by the pixel may be changed (for example, refer to Patent Document 3).

Method used

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  • Method for manufacturing liquid crystal display device
  • Method for manufacturing liquid crystal display device
  • Method for manufacturing liquid crystal display device

Examples

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Embodiment Construction

[0059] Hereinafter, embodiments of the liquid crystal display device of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments.

[0060] Embodiments of the liquid crystal display device of the present invention will be described below. figure 1 A schematic diagram of the liquid crystal display device 100 of this embodiment is shown. The liquid crystal display device 100 includes a liquid crystal panel 200 and a correction unit 300 . The liquid crystal panel 200 includes a plurality of pixels arranged in a matrix in a plurality of rows and columns. Here, in the liquid crystal panel 200, a pixel has red, green, and blue sub-pixels. In the following description of this specification, a liquid crystal display device may be simply referred to as a "display device".

[0061] The input signal is, for example, a signal compatible with a Cathode Ray Tube (CRT) having a gamma value of 2.2, an...

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Abstract

A liquid crystal display device (100) according to the present invention comprises the steps of: providing a liquid crystal display panel (200), which includes an active-matrix substrate, a counter substrate, and a vertical alignment liquid crystal layer interposed between the active-matrix substrate and the counter substrate; if an achromatic color should be represented, obtaining the chromaticity of the liquid crystal display panel (200) when viewed straight on with respect to each grayscale level and determining a range in which the chromaticity of the liquid crystal display panel (200) when viewed obliquely is adjustable by changing the luminances of respective blue subpixels belonging to the two pixels within their adjustable range; and setting the luminances of the blue subpixels so that the chromaticity of the liquid crystal display panel when viewed obliquely becomes as close to the chromaticity of the liquid crystal display panel when viewed straight on as possible within the adjustable range with respect to at least a part of the entire range of the grayscale levels.

Description

technical field [0001] The present invention relates to a method for manufacturing a liquid crystal display device. Background technique [0002] A liquid crystal display device is used not only as a small display device such as a display unit of a mobile phone but also as a large television set or the like. The TN (Twisted Nematic: twisted nematic) mode liquid crystal display device that has been used frequently has a relatively narrow viewing angle, but in recent years, IPS (In-Plane-Switching: in-plane switching) mode and VA (Vertical Alignment: Liquid crystal display devices with wide viewing angles such as vertical alignment) mode are manufactured. In such a wide viewing angle mode, the VA mode can achieve a high contrast ratio, and thus is adopted in many liquid crystal display devices. [0003] However, in a VA-mode liquid crystal display device, there is a problem that grayscale inversion occurs when viewed from an oblique direction. In order to suppress such grad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/13G09G3/20G09G3/36
CPCG02F2001/134345G09G3/3648G09G2320/0242G09G3/3607G09G2320/028G09G2340/06G09G2320/0693G02F1/134345
Inventor 富泽一成吉田悠一森智彦
Owner SHARP KK
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