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Backlight module and display device

A backlight module and display device technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as heat accumulation, unsatisfactory heat dissipation effect of LED heat dissipation structure, influence on LED working stability and service life, etc., to improve heat dissipation performance, improve luminous efficiency and service life, and improve the effect of heat dissipation

Active Publication Date: 2018-01-19
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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AI Technical Summary

Problems solved by technology

[0004] The inventors of the present application found that when the TFT-LCD is turned on, the heat dissipation effect of the above-mentioned LED heat dissipation structure is not ideal due to the large heat generated by the LED when the TFT-LCD is turned on, which can easily lead to heat accumulation, thereby affecting the performance of the LED. Working stability and service life

Method used

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

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Embodiment Construction

[0038] In order to improve the heat dissipation of the backlight module, thereby improving the working stability and service life of LEDs, the embodiments of the present invention provide a backlight module and a display device. In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0039] An embodiment of the present invention provides a backlight module, including an LED lamp group and a heat dissipation device, and the heat dissipation device includes a thermoelectric power generation device and a power consumption device electrically connected to the thermoelectric power generation device, wherein:

[0040] The LED light group includes a light bar and a plurality of LEDs arranged on one side surface of the light bar;

[0041] The thermoelectric power generation device includes a hot end and a cold end, the hot end is set toward the multiple LED...

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Abstract

The invention discloses a backlight module and a display device. The heat dissipation of the backlight module is improved, the working stability of LEDs is improved, and the service life of the LEDs is prolonged. The backlight module includes an LED light group and a heat dissipation device, and the heat dissipation device comprises a temperature-difference power generator and a power consumptiondevice electrically connected with the temperature-difference power generator, wherein the LED light group comprises a light strip and a plurality of LEDs arranged on the surface of one side of the light strip; the temperature-difference power generator comprises a hot end and a cold end, the hot end faces the LEDs, and the cold end is arranged away from the LEDs.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] Among flat panel display devices, Thin Film Transistor Liquid Crystal Display (TFT-LCD) has the characteristics of small size, low power consumption, relatively low manufacturing cost and no radiation, and occupies a dominant position in the current flat panel display market. status. [0003] The structure of the existing TFT-LCD usually includes a backlight module and a liquid crystal display panel located on the light emitting side of the backlight module. Since the liquid crystal display panel itself does not emit light, a backlight module is essential for TFT-LCD. Currently, backlight modules generally use LEDs (light-emitting diodes, LEDs for short) as light sources. Such as figure 1 As shown, there is an existing backlight module 01 , the heat emitted by the LED 04 passes through the metal backplane...

Claims

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Application Information

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IPC IPC(8): G02F1/13357H02N11/00
Inventor 黎胜明陈江周伟
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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