Unlock instant, AI-driven research and patent intelligence for your innovation.

Liquid crystal display

A liquid crystal display device, liquid crystal molecule technology, applied in nonlinear optics, instruments, optics, etc., can solve the problem of unable to obtain image quality, and achieve the effects of small color difference, high contrast, and high image quality

Active Publication Date: 2008-07-16
AU OPTRONICS CORP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the case of using a color filter whose contrast ratio of blue is lower than that of red or green, due to the synergistic effect of the blue light leakage caused by the polarizer, the color tone of black display has a bluish tinge. , perfect image quality cannot be obtained in most cases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Liquid crystal display
  • Liquid crystal display
  • Liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Use the C-type light source formulated by the International Commission on Illumination (CIE) to measure the intensity of pixels or patterns formed with red (R), green (G), and blue (B) colored layers on an optically transparent support. Substrate, contrast ratio CR of each colored layer R 、CR G with CR B It is better to have 16×(CR R / CR G )-3>CR B / CR G >CR R / CR G , preferably with 16×(CR R / CR G )-4>CR R / CR G >CR R / CR G +0.2 relationship.

[0020] A method of defining the contrast of the colored layer will be described. Such as Figure 3a As shown, between the polarizing plates 10 arranged parallel to the absorption axis 11, a transparent substrate 12 with a single colored layer formed into a uniform thickness is arranged as the object to be measured, and the luminance value measured by the C-type light source 13 by means of the luminance meter 9 is set. It is W(Y), where the Y value can be interpreted from the CIE 1391 chromaticity diagram. Also, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A liquid crystal display with high contrast and little color difference between white plain color and black plain color is disclosed, in which in the color layers formed on an optically transparent substrate, the contrasts of red (R), green (G), and blue (B) CRR, CRG, and CRB have a relationship of 16x(CRR / CRG)-3>CRB / CRG>CRR / CRG, and the total contrast CRR, G, B calculated from the contrasts of color layers CRR, CRG, and CRB and the contrast of a polarizing plate CRPOL satisfy a relationship of CRR, G, B / CRPOL>0.11.

Description

【Technical field】 [0001] The invention relates to a liquid crystal display device. 【Background technique】 [0002] Currently, liquid crystal display devices are widely used in TV applications that require high contrast, wide viewing angles, high color reproducibility, and the like. For high contrast requirements, technologies such as Normal Black mode or high contrast of polarizers, and reduction of polarization elimination factors in liquid crystal cells can be used. For wide viewing angle requirements, you can use VA mode or IPS mode, and use retardation film for optical compensation. Regarding the high reproducibility requirements of the color, the technology of improving the color purity of the color filter or optimizing the spectrum of the backlight source can be used. [0003] However, when the conventional liquid crystal display device displays colors with different hues, there is still a problem that the image quality is degraded due to the large variation of the h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335
CPCG02F1/1393G02F1/133514G02F1/133528
Inventor 西小路祐一罗瑞良松川秀树
Owner AU OPTRONICS CORP