Display device

A display device and sub-pixel technology, applied in nonlinear optics, instruments, optics, etc., can solve the problem of LCD deviation from white balance, etc., and achieve the effects of high contrast, improved utilization rate, and fast response speed

Inactive Publication Date: 2009-07-08
孙润光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a display device that can improve the brightness of the display device in order to overcome the defects that the display image in the display device in the prior art is different with the viewing angle, and the LCD with the same aperture ratio seriously deviates from the white balance. utilization or / and have white balance, higher color rendering areas and wider viewing angles

Method used

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Experimental program
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Effect test

Embodiment 1

[0049] Such as Figure 2a As shown, the display device of the present invention includes: a blue backlight 310', a scattering and photoluminescence film 110', a black matrix 111a', a barrier rib 111b' located on the black matrix 111a', a selective reflection film 114, a first The substrate 115a, the second substrate 115b, the light switch 210, the common electrode 113a and the external environment light blocking film 117, wherein the wavelength range of the light emitted by the blue backlight 310' is in the blue region, with 410-500nm being the best , and the scattering and photoluminescence film 110' can emit red, green, blue and / or transition colors between red, green and blue under the excitation of the above-mentioned light source 310', the scattering and photoluminescence The film 110' includes photoluminescent film sub-pixels 110a', 110b' and scattering film sub-pixels 110c' located on the same plane. The film sub-pixel 110c' is a blue sub-pixel, and the scattering film...

Embodiment 2

[0085] The structure and principle of this embodiment are basically the same as the first embodiment, and the display device can adopt image 3 In the structure shown in , the optical switch 210' adopts a VA mode liquid crystal cell, uses a CCFL (Cold Cathode Fluorescent Lamp, cold cathode fluorescent lamp) or a GaInN LED blue backlight 310', and sets a scattering and Photoluminescent film 110':

[0086] The light-emitting material of the red light-emitting sub-pixel 110a' is selected from DCM (4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran) or Nile Red, and green light-emitting materials such as coumarin can also be added (C545) or quinacridine (quinacrodone) (QD) series derivatives, yellow luminescent material rubrene, etc. to improve the blue-red light conversion efficiency. The film-forming material is acrylic resin, and the weight ratio of luminescent material such as DCM to acrylic resin (solid content in the glue) is optimized, and the red pixel patte...

Embodiment 3

[0092] The structure and principle of this embodiment are basically the same as Embodiment 1, the difference is:

[0093] The green light-emitting sub-pixel 110b' is made of organic polymer light-emitting materials such as PPV (polyphenylene vinylene) or P8BT (copolymer of fluorene and thiothiadiazole), or a mixture of two or more light-emitting polymers. The film can also be mixed with other auxiliary film-forming polymer materials such as acrylic resin, etc., and the above-mentioned materials can be used to prepare luminous ink suitable for printing, such as toluene solution.

[0094] For the red light-emitting sub-pixel 110a', F8T2, a copolymer of fluorene and thiophene, or a copolymer of thiothiadiazole and thiophene, is selected as an organic light-emitting polymer material, and a mixture of two or more organic light-emitting polymer materials is directly formed into a film , can also be mixed with other auxiliary film-forming polymer materials such as acrylic resin, etc....

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Abstract

The invention discloses a display device. The display device comprises a backlight source, an optical switch and a substrate; a plurality of photoluminescence membrane subpixels and scattering membrane subpixels are arranged between the optical switch and the substrate; and light emitted by the backlight source passes through the photoluminescence membrane subpixels and scattering membrane subpixels to form red, green, blue and / or transition color among red, green and blue. The irradiance of a photoluminescence membrane has a wide visual angle; and the color is not changed along an observation angle. The scattering membrane subpixels scatter the incident exciting light to change the transmitting direction of the exciting light and obtain the wide visual angle; and more than one selective reflecting membrane can be arranged between the photoluminescence membrane and the scattering membrane so as to substantially improve the utilization rate of irradiance.

Description

technical field [0001] The invention relates to a display technology, in particular to a display device which adopts monochrome backlighting, light switch and photoluminescent material. Background technique [0002] Color liquid crystal display devices (Liquid Crystal Display, LCD) are widely used in mobile phones, monitors and televisions. The manufacturing method of LCD is usually to inject liquid crystal material between the color filter substrate (Color Filter, or "color filter" and "color filter film") and the array substrate (Array Panel) to form a liquid crystal cell. A backlight is installed on the lower side of the liquid crystal box, and the usual color LCD backlight is white. The color filter includes several pixels, and the pixels are composed of sub-pixels such as red (R), green (G), and blue (B). When white light passes through the corresponding R, G, and B sub-pixels, the light of other colors is absorbed and the monochromatic R, G, and B primary colors are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333
Inventor 孙润光
Owner 孙润光
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