LED display screen and three-dimensional display device thereof

A technology of LED display screen and LED chip, which is applied in the direction of identification devices, instruments, electrical components, etc., can solve the problems of increased drive complexity, strong glare, and serious moiré fringes, so as to avoid point light and reduce moiré Streaks and good uniformity

Active Publication Date: 2014-09-24
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different materials of the three kinds of quantum dot LED chips, three different material light-emitting layers need to be fabricated respectively. The corresponding driving circuit system parameters and driving schemes of different light-emitting materials are different, which increases the driving complexity and shows instability.
In addition, since each LED is a point of light, there will be a strong sense of glare when viewing
At the same time, according to the 3D-LED display device made of the traditional LED screen, due to the influence of the frame of the LED package, the Moiré fringe is very serious

Method used

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  • LED display screen and three-dimensional display device thereof
  • LED display screen and three-dimensional display device thereof
  • LED display screen and three-dimensional display device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] refer to figure 1 , the present embodiment is a specific scheme when using ultraviolet LED chips, including a first substrate 11; a second substrate 12 opposite to the first substrate; an ultraviolet LED chip array 13 arranged on the first substrate; according to the pixel distribution, set A patterned long-wave pass filter film 14 and a black matrix 15 on the second substrate, the long-wave pass filter film can pass through visible light and reflect ultraviolet light, and the black matrix 15 can reduce or prevent differences between pixels. Color light interference; patterned light conversion material layer 16 arranged according to pixel distribution, said light conversion material layer refers to a material that can absorb ultraviolet light energy and convert this energy into red, green, and blue visible light; short-wave pass filter film 17 , arranged between the patterned light conversion material layer 16 and the ultraviolet LED chip array 13, the short-wave pass f...

Embodiment 2

[0063] refer to figure 2 , the present embodiment is a specific scheme when blue LED chips are used, including a first substrate 21; a second substrate 22 opposite to the first substrate; a blue LED chip array 23 arranged on the first substrate; according to pixel distribution, set Patterned long-wave pass filter film 24 and black matrix 25 on the second substrate. The long-wave pass filter film 24 can transmit light with a wavelength longer than blue light and reflect blue light. The black matrix 25 can reduce or prevent each Different color light interference between pixels; patterned light conversion material layer 26 arranged according to pixel distribution, said light conversion material layer refers to a material that can absorb blue light energy and convert the energy into red and green visible light; short-wave pass filter film 27, arranged between the patterned light conversion material layer and the ultraviolet LED chip array, the short-wave pass filter film 27 can ...

Embodiment 3

[0074] refer to image 3 In this embodiment, a 3D display device is formed on the basis of the LED display screen in Embodiment 1.

[0075]The LED comprises a first substrate 31; a second substrate 32 opposite to the first substrate; an ultraviolet LED chip array 33 arranged on the first substrate; a patterned long-wave pass filter film 34 arranged on the second substrate according to the pixel distribution And the black matrix 35, the long-wave pass filter film 34 can pass through visible light and reflect ultraviolet light, the black matrix 35 can reduce or prevent the interference of different colors of light between each pixel; the graphic light conversion set according to the pixel distribution Material layer 36, the light conversion material layer refers to materials that can absorb ultraviolet light energy and convert the energy into red, green, and blue visible light; short-wave pass filter film 37 is arranged on the patterned light conversion material layer and the ul...

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Abstract

The invention provides an LED display screen and a three-dimensional display device thereof. A short-wavelength LED chip array is utilized for sending light, the light penetrates through a short-wave filter coating to irradiate the light conversion material to give out light or to be directly emit out, and then color display is achieved. On that basis, a diffusion barrier, a brightening film and a parallax barrier optical grating are arranged to achieve three-dimensional display. Compared with the prior art, only one LED chip needs to be driven, and a driving circuit is simple, stable and reliable. Due to the fact that the photoluminescence of quantum dots and other materials is utilized for achieving displaying, after the light penetrates through the diffusion barrier and the brightening film, the point light source of each pixel is changed into an area light source, tenderness during watching is achieved, the color gamut is high, and moire fringes can be effectively reduced.

Description

technical field [0001] The invention relates to an LED display screen and a 3D display device thereof, belonging to the field of LED display. Background technique [0002] Quantum Dots (QDs), also known as nanocrystals, emit fluorescence of different wavelengths when excited by light or electricity, that is, quantum dots can not only emit light themselves, but also change the color of the light emitted by the light source. By controlling the material and size of quantum dots, the wavelength of photoluminescence of quantum dots can also be adjusted, which has been widely used in the field of optoelectronic display. For example, in the backlight of a liquid crystal display device, the monochromatic quantum dot is used as the light source of the backlight module of the liquid crystal display. After being excited by the blue LED, the monochromatic quantum dot emits monochromatic light and mixes with the blue light to form a white background light, which has a relatively high per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/48H01L33/60G09F9/33
CPCG09F9/33H01L33/48H01L33/58
Inventor 周雄图张永爱郭太良叶芸林志贤姚剑敏林金堂林木飞曾祥耀
Owner FUZHOU UNIV
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