Blu-ray ld multi-tooth reflective conduction backlight module structure

A technology of backlighting, reflection and conduction, used in light guides, optics, optical components, etc.

Active Publication Date: 2019-01-11
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no report on the application of laser in the research of liquid crystal flat panel display in China, but related products and experimental research have appeared abroad

Method used

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  • Blu-ray ld multi-tooth reflective conduction backlight module structure
  • Blu-ray ld multi-tooth reflective conduction backlight module structure

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Embodiment Construction

[0013] Such as Figure 1-2 As shown, it will be introduced through specific embodiments below. Blu-ray LD multi-tooth reflective backlight module structure, which is used in conjunction with LCD screens, such as figure 1 . The outer surface of the multi-tooth reflection system 2 is made into a tooth shape and the non-light-emitting surface is coated with a total reflection film layer for light reflection. When the light emitted by the blue light LD 1 passes through the multi-tooth reflective system 2 , the light will be reflected to the tooth surface, so that the light will be emitted from the opposite surface of the multi-tooth reflective system 2 . The opposite surface is evenly coated with a transparent jelly mixed with red and green phosphors, so the light emitted from this surface will excite the phosphors on it, and mix and output white light. The output white light enters the back panel, and under the special action of the light guide plate in the back panel, the hor...

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Abstract

The invention provides a bluelight LD multi-tooth reflective transmitting backlight module, structure wherein the outer side of a multi-tooth light reflecting system is tooth-shaped and furthermore a total-reflection film layer is plated on a non-light-emitting surface for reflecting light. When the light which is transmitted from a blue-light LD passes through the multi-tooth light reflecting system, the light is reflected to the tooth-shaped surface, thereby making the light be emitted out of the opposite surface of the tooth-shaped surface of the multi-tooth light reflecting system. A transparent jelly which is mixed with a red phosphor powder and a green phosphor powder is uniformly plated on the opposite surface, therefore the light activates the phosphor powders on the opposite surface in emitting out of the opposite surface and white light is obtained through mixing and output. The output white light enters a back board, and horizontally incident light is vertically output uniformly under the specific effect of a light guide board in the back board. Furthermore a purpose of back board illumination is realized. The bluelight LD multi-tooth reflective transmitting backlight module has advantages of simple structure, small size, small weight, compact structure, low equipment investment, simple production process and high product yield rate.

Description

technical field [0001] The invention relates to a reflective backlight lighting module structure, in particular to a blue light LD multi-tooth reflective backplane lighting module structure. Background technique [0002] Laser display has the advantages of large color gamut, high color saturation, energy saving and environmental protection, and long life. It is considered to be a new generation of display technology after black and white, color, and digital high-definition. In terms of laser display, there are many researches on laser projection display technology, which is relatively mature; there are few researches on laser flat panel display technology. The performance of the backlight directly affects the color, brightness uniformity, power consumption and other performance indicators of the laser flat panel display device. The requirements for high brightness, good brightness uniformity and color rendering, thin shape, and low power consumption of the backlight are nec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02B6/00
CPCG02B6/0031G02F1/133615
Inventor 刘友强王志平曹银花邱运涛尧舜王智勇
Owner BEIJING UNIV OF TECH
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