Photo-luminescence color liquid crystal display

一种液晶显示器、光致发光的技术，应用在彩色显示器)领域，能够解决浪费背光强度、彩色滤光片不能很好地匹配等问题，达到高能量转换效率、低成本的效果

Inactive Publication Date: 2009-07-15
INTEMATIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the white light product of these LEDs does not match well with the color filters used in current LCDs and wastes a lot of backlight intensity

Method used

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  • Photo-luminescence color liquid crystal display
  • Photo-luminescence color liquid crystal display
  • Photo-luminescence color liquid crystal display

Examples

Experimental program
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Embodiment Construction

[0042] Disclosed herein is a novel color rendering scheme designed to improve and enhance the brightness and sharpness of electronic displays, such as liquid crystal displays (LCDs). Embodiments of the present invention incorporate two key components: 1) a red-green (RG) or red-green-blue (RGB) phosphor panel; and 2) a monochromatic or quasi-monochromatic short-wavelength light source, which uses for exciting the RGB phosphors of the RG phosphor panel. These components respectively replace the color filter panel and the broadband white light source traditionally used in prior art LCDs.

[0043] see figure 1 , shows a schematic cross-sectional illustration of a photoluminescent color LCD 100 according to a first embodiment of the present invention. The LCD 100 includes a display panel 102 and a backlight unit 104 .

[0044] The backlight unit 104 includes a single source or sources of excitation radiation 106 and a light diffusing plane 108 . Each radiation source 106 may ...

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Abstract

A photo-luminescence liquid crystal (LCD) display comprises: a display panel and a radiation source for generating excitation radiation for operating the display. The display panel comprises transparent front and back plates; a liquid crystal disposed between the front and back plates; a matrix of electrodes (array of thin film transistors TFTs) defining red, green and blue pixel areas of the display and operable to selectively induce an electric field across the liquid crystal in the pixel areas for controlling transmission of light through the pixel areas. A red phosphor material which emits red (R) light in response to excitation radiation is provided on the back plate corresponding to red pixel areas and green phosphor material which emits green light in response to excitation radiation is proved on the back plate corresponding to green pixel areas.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority from US Provisional Application No. 60 / 819,420, filed July 6, 2006, the specification and drawings of which are incorporated herein by reference. technical field [0003] The present invention relates to the field of color displays such as flat panel displays and color liquid crystal displays (LCDs) that convert electrical signals into color images. Specifically, the present invention relates to color, transmissive LCDs in which phosphors, photoluminescent materials are used to produce colored light in response to excitation radiation from a backlight, such displays are referred to as photoluminescent color LCDs (photo-luminescent color LCDs). luminescence color LCD) or photoluminescent color LCD (photo-luminescent color LCD). Background technique [0004] The light that illuminates our world and allows us to see comes from solar energy in the visible region known as th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335H01L33/50
CPCG02F1/133617G02F1/133621G02F2001/133567G02F2203/34G02F2001/133614G02F1/133512G02F1/133567G02F1/1335
Inventor 李依群董翊单伟
Owner INTEMATIX
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