Backlight module and display device

A backlight module and display device technology, which is applied to lighting devices, fixed lighting devices, lighting device components, etc., can solve problems such as high design cost, easy yellowing of the screen, and reduced LED light efficiency, and achieve design cost reduction , High luminous efficiency

Active Publication Date: 2015-05-06
QINGDAO GOERTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing blue light chip plus RG phosphor to achieve a high color gamut technical solution has a high design cost, and the display screen tends to turn yellow after a period of use, and the RG phosphor will absorb part of the light, reducing the LED light efficiency

Method used

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  • Backlight module and display device
  • Backlight module and display device

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like figure 1 Shown is a backlight module provided by an embodiment of the present invention; the backlight module includes: a blue light emitting diode 101, a light guide plate 102; and the light guide plate (LGP for short).

[0027] The light guide plate 102 includes: a bottom surface 104; a light exit surface 105 opposite to the bottom surface; and a light incident surface 103 connecting the bottom surface 104 and the light exit surface 105;

[0028] RG ink dots 106 are evenly distributed outside the bottom surface 104 of the light guide plate;

[0029] The light emitted by the blue LED 101 mixes with the RG ink in the RG ink dots 106 through the light incident surface 103 to generate white light, and the white light is emit...

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PUM

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Abstract

The invention discloses a backlight module and a display device. The backlight module comprises a blue light-emitting diode and a light guiding plate. The light guiding plate comprises a bottom face, a light emitting face opposite to the bottom face, and a light incidence face for the bottom face and the light emitting face to be connected. RG printing ink net points are evenly distributed on the outer side of the bottom face of the light guiding plate. Light emitted by the blue light-emitting diode passes the light incidence face and is mixed with RG printing ink in the RG printing ink net points to generate white light, and the white light is irradiated through the light emitting face of the light guiding plate. According to the technical scheme, the blue light emitted by the blue light-emitting diode is mixed with the RG printing ink arranged on the bottom face of the light guiding plate to reflect the high-gamut white light, and therefore the design cost for achieving the high-gamut white light is reduced; due to the fact that the blue light-emitting diode does not contain fluorescent powder, the light-emitting efficiency is high, and a display frame cannot become yellow.

Description

technical field [0001] The invention relates to the technical field of screen display, in particular to a backlight module and a display device. Background technique [0002] With the continuous improvement of the color gamut and brightness requirements of display devices, in the prior art, white light-emitting diodes (Light-Emitting Diode, referred to as LED) and three primary colors (Red, Green, Blue, referred to as RGB) photoresist are used to realize the display device. High color gamut requirements are increasingly constrained. At present, the way to achieve high color gamut mainly adopts blue light chip plus RG phosphor powder or blue light LED plus quantum dot technology. [0003] During the actual design of the backlight module, the inventors found that there are at least the following problems in the prior art: [0004] The existing blue-ray chip plus RG phosphor to achieve a high color gamut technical solution has a high design cost, and the display screen tends ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V19/00F21V8/00G02F1/13357F21Y101/02
CPCG02B6/0043G02B6/0058G02F1/133603G02F1/133609G02F1/133615G02F1/133614
Inventor 冯涛李培平赵小光
Owner QINGDAO GOERTEK
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