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Light source, backlight module and display device

A technology of light source and adjustment device, which is applied in the direction of light guide, optics, optical components, etc., to achieve the effect of realizing backlight color temperature, large adjustment range, and realizing adjustment.

Active Publication Date: 2017-02-22
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, if the color temperature of the backlight needs to be changed, the entire LED strip must be replaced

Method used

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  • Light source, backlight module and display device
  • Light source, backlight module and display device
  • Light source, backlight module and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] figure 1 , 2 Shown is the backlight module 100 according to the first embodiment of the present invention, the backlight module 100 according to the first embodiment of the present invention includes: a light source 10; and a light guide plate 1, at least a part of the light emitted by the light source 10 Enter the light guide plate 1 from the light incident surface 11 of the light guide plate 1 . In the examples shown in 1 and 2, the phosphor layer 2 is disposed between the light incident surface 11 of the light guide plate 1 and the light emitting diode chip 3 .

[0050] like figure 1 , 2 As shown, the light source 10 according to the embodiment of the present invention includes: a light emitting diode chip 3; and a phosphor layer 2 arranged opposite to the light emitting diode chip 3, and the phosphor layer 2 receives the first light, and emits second light having a wavelength different from that of the first light. The light-emitting diode chip 3 and the phosph...

Embodiment 2

[0066] image 3 Shown is the backlight module 100 according to the second embodiment of the present invention, the backlight module 100 according to the second embodiment of the present invention includes: a light source 10; and a light guide plate 1, at least a part of the light emitted by the light source 10 Enter the light guide plate 1 from the light incident surface 11 of the light guide plate 1 . In the illustrated embodiment, the phosphor layer 2 is disposed between the light incident surface 11 of the light guide plate 1 and the LED chip 3 .

[0067] like figure 1 , 2 As shown, the light source 10 according to the embodiment of the present invention includes: a light emitting diode chip 3; and a phosphor layer 2 arranged opposite to the light emitting diode chip 3, and the phosphor layer 2 receives the first light, and emits second light having a wavelength different from that of the first light. The light-emitting diode chip 3 and the phosphor layer 2 can move rel...

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PUM

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Abstract

The embodiment of the invention discloses a light source, a backlight module and a display device. The light source includes: a light-emitting diode chip; and a phosphor layer opposite to the light-emitting diode chip, the phosphor layer receives the first light emitted by the light-emitting diode chip, and emits a second light having a wavelength different from that of the first light , wherein the light-emitting diode chip and the phosphor layer can move relative to each other, so that the amount of phosphor in the phosphor layer excited by the light emitted by the light-emitting diode chip increases or decreases. With the above technical solution, for example, the LED chip and the phosphor layer can move relative to each other, so that the color temperature of the backlight can be adjusted conveniently.

Description

technical field [0001] Embodiments of the invention relate to a light source, a backlight module and a display device. Background technique [0002] The backlight module of a conventional liquid crystal display generally includes a white LED light bar and a light guide plate. A white LED includes a blue LED chip and a yellow phosphor layer, and the phosphor layer and the LED chip are packaged together. In this way, if the color temperature of the backlight needs to be changed, the entire LED strip must be replaced. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a light source, a backlight module and a display device, whereby the color temperature of the backlight can be adjusted conveniently through the relative movement of the LED chip and the phosphor layer. [0004] According to an embodiment of the present invention, a light source is provided, the light source includes: a light emitting diode chip; and a phos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/1336G02F1/133603G02F1/133614G02B6/0021G02B6/0023G02B6/0026G02F1/1335
Inventor 杨泽洲刘晴
Owner BOE TECH GRP CO LTD