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High-brightness backlight source module based on LD pumping fluorescent crystal

A technology of fluorescent crystal and backlight light source, applied in optics, nonlinear optics, instruments, etc., can solve problems such as affecting image quality, and achieve the effect of reducing size, small size, and high brightness

Pending Publication Date: 2020-07-28
河南百合特种光学研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent CN107705759A proposes a method for individually controlling the white light dot matrix light source under each pixel unit on the LED display screen, but it can only change the brightness parameters of the image. Patchwork will seriously affect the quality of the image

Method used

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  • High-brightness backlight source module based on LD pumping fluorescent crystal
  • High-brightness backlight source module based on LD pumping fluorescent crystal
  • High-brightness backlight source module based on LD pumping fluorescent crystal

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-2 , the present invention provides a technical solution: a high-brightness backlight light source module based on LD pumped fluorescent crystals, including a light source fixing frame 3, an LCD screen 2 and a high-brightness backlight light source 1, and the inner front side of the light source fixing frame 3 is fixed There is an LCD screen 2, and one side of the LCD screen 2 is evenly connected to the high-brightness backlight source 1 th...

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Abstract

The invention discloses a high-brightness backlight source module based on an LD pumping fluorescent crystal. The backlight module comprises a light source fixing frame, an LCD screen and high-brightness backlight sources; the LCD screen is fixed to the front side of the interior of the light source fixing frame; one side of the LCD screen is uniformly connected with the high-brightness backlightsources through light source fixing bases; the high-brightness backlight sources are distributed on the rear side of the LCD screen in a matrix manner; first 450nm laser light source assemblies, fluorescent crystal assemblies and second 450nm laser light source assemblies are subjected to heat dissipation through heat dissipation modules by means of an air cooling mode, such a heat dissipation mode enables smaller size and lower cost compared with a liquid cooling heat dissipation mode; the high-brightness backlight source module based on the LD pumping fluorescent crystal is simple in structure; the size of the high-brightness backlight sources is effectively reduced; the backlight brightness, the color temperature and the light spot size of a single high-brightness backlight source can be conveniently and efficiently adjusted; and the splicing seam phenomenon during multi-light-source light beam splicing can be effectively improved through the three-dimensional allowance adjustment of the single light source module.

Description

technical field [0001] The invention relates to the technical field of high-brightness backlight light sources, in particular to a high-brightness backlight light source module based on LD pumped fluorescent crystals. Background technique [0002] LCD (Liquid Crystal Display) products use a non-pixel self-luminous display technology, which must rely on the emission of the light source in the backlight module to obtain display performance. The quality of the backlight module, especially the quality of the backlight light source, directly affects the quality of the LCD panel. display quality. Traditional LCD backlight sources widely use LEDs (Light Emitting Diodes), but the LED itself has a wide spectral line width and a large divergence angle, and the brightness reaching the LCD screen can only reach 200-300 cd / m 2 . [0003] In recent years, laser light sources with good monochromaticity, good directionality, higher brightness, and longer life have been gradually applied t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133602G02F1/133609G02F1/133611G02F1/133614G02F1/133628
Inventor 李康张博刘琴李媛陈龙飞
Owner 河南百合特种光学研究院有限公司
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