Supercharge Your Innovation With Domain-Expert AI Agents!

Liquid crystal display device

A liquid crystal display and backlight module technology, applied in static indicators, instruments, nonlinear optics, etc., can solve the problems of expanding the volume of backlight modules, the inability of liquid crystal displays to achieve high color saturation, and affecting the quality of high-color full-color display

Active Publication Date: 2009-03-11
AU OPTRONICS CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using RGB LEDs at the same time will not only increase the volume of the backlight module, but also increase the complexity of the control circuit, which in turn will increase the production cost
[0004] To sum up, under the limitation of limited backlight module size and simple control circuit, the existing liquid crystal display cannot achieve high color saturation, which in turn affects the quality of its high-color full-color display

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 device
  • Liquid crystal display device
  • Liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0075] The color filter substrate used in the first embodiment of the present invention is sample A, and the backlight module selected to match it is sample #1.

[0076] Figure 2A It is a spectrum diagram of the light source emitted by the white light point light source used in the first embodiment of the present invention. Among them, R(λ), G(λ), and B(λ) respectively represent the three brightness peaks of red light, green light and blue light in the spectrum emitted by the white light point light source, and BL(λ) represents that the light of each wavelength is normalized Brightness after normalization.

[0077] In the combination of the color filter substrate and the backlight module used in the first embodiment of the present invention, the sum of the products of the transmittance spectrum of the color filter substrate and the spectrum of the backlight module within the specified wavelength range is calculated as follows:

[0078] (1A) Σ ...

no. 2 example

[0088] The color filter substrate used in the second embodiment of the present invention is sample B, and the backlight module selected to match it is sample #2.

[0089] Figure 3A It is a spectrum diagram of the light source emitted by the white light point light source used in the second embodiment of the present invention. Among them, R(λ), G(λ), and B(λ) respectively represent the three brightness peaks of red light, green light and blue light in the spectrum emitted by the white light point light source, and BL(λ) represents that the light of each wavelength is normalized Brightness after normalization.

[0090] In the combination of the color filter substrate and the backlight module used in the second embodiment of the present invention, the sum of the products of the transmittance spectrum of the color filter substrate and the spectrum of the backlight module within the specified wavelength range is calculated as follows:

[0091] (1B) Σ ...

no. 3 example

[0099] The color filter substrate used in the third embodiment of the present invention is sample C, and the backlight module selected to match it is sample #3.

[0100] Figure 4A It is a spectrum diagram of the light source emitted by the white light point light source used in the third embodiment of the present invention. Among them, R(λ), G(λ), and B(λ) respectively represent the three brightness peaks of red light, green light and blue light in the spectrum emitted by the white light point light source, and BL(λ) represents the brightness of each wavelength of light when it is detected Brightness after normalization.

[0101] In the combination of the color filter substrate and the backlight module used in the third embodiment of the present invention, the sum of the products of the transmittance spectrum of the color filter substrate and the spectrum of the backlight module within the specified wavelength range is calculated as follows:

[0102] (1C) ...

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

The LCD comprises aphototropic module and LCD display panel. The said aphototropic module comprises at least a white light source with at least three peak value of the light spectrum. The said LCD panel comprises colorful filtering substrate, opposite substrate and crystalline layer. Between the colorful filtering substrate and opposite substrate, the said color filtering substrate having blue, green and red filtering layer, with the said color filter substrate and the said aphototropic module meeting the following relationship: (1)605sigma555 BL(lambada)*CFRed(lambada)*Deltlambada<=6. 0; (2)630sigma580 BL(lambada)*CFGreen(lambada)*Deltlambada<=3. 5; (3)580sigma505 BL(lambada)*CFBlue(lambada)*Deltlambada<=3. 5. The said aphototropic module has the biggest luminance value under a certain wavelength of 1. 0, BL(lambada) showing luminance frequency spectrum of the wavelength after normalization, CFBlue(lambada), CFGreen(lambada),CFRed(lambada) representing the penetration ratio of the color filter substrate to blue, green and red filter layer, with Deltlambada meaning the wavelength interval.

Description

technical field [0001] The present invention relates to a display, and in particular to a liquid crystal display with high color saturation. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD), which has superior characteristics such as high image quality, better space utilization, low power consumption, and no radiation, has gradually become the mainstream of displays. In order to achieve high color reproduction (CcolorRreproduction), it is commonly used in TV sets or monitors at present, and CCFL (Cold Cathode Fluorescent Lamp, Cold Cathode Fluorescent Lamp) is used to make a backlight module. If the color saturation is measured according to the standard set by the National Television System Committee (NTSC), the color saturation of a liquid crystal display made of CCFL as a backlight module can reach above 72% of NTSC. However, for handheld or portable devices, such as mobile phones, the color saturation of the LCDs on them is still insuff...

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): G02F1/1335G02F1/1362G02F1/133
Inventor 郑胜文王俊杰廖烝贤
Owner AU OPTRONICS CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com