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Cooling apparatus for backlight module

A cooling device and backlight module technology, applied in optics, nonlinear optics, instruments, etc., can solve problems such as errors, and achieve the effect of improving efficiency and rapid cooling

Inactive Publication Date: 2007-05-23
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature behind the backlight device rises, it will affect the driving circuit IC provided behind the backlight device. Due to this effect, each driving circuit IC operates at a temperature higher than its own inherent temperature characteristics, and serious errors will occur.

Method used

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  • Cooling apparatus for backlight module
  • Cooling apparatus for backlight module
  • Cooling apparatus for backlight module

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Experimental program
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Embodiment Construction

[0044] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] 5a and 5b are a schematic plan view and a schematic side view of the structure of a cooling device for a backlight module according to an ideal embodiment of the present invention.

[0046]As shown in Fig. 5a and Fig. 5b, the cooling device for backlight module of the present invention attaches the medium PCB substrate 3 for releasing heat on the prepared metal plate 1, and the PCB substrate 3 is preferably formed of a metal substance with good thermal conductivity. At this time, the metal plate 1 is at least larger than the PCB substrate 3 , preferably, a metal plate 1 corresponding in size to a certain panel (not shown in the figure) for displaying images is prepared. A plurality of PCB substrates 3 are attached to the same metal plate 1 . At this time, the PCB substrate 3 is extended in one direction, so that the light source group (group) com...

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PUM

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Abstract

The invention discloses a cooling device which can effectively cool down the light source of backlight module. The invention of the backlight module cooling device is configured with a one electron cooling device in various LED devices at the same plane. It's configured in PCB substrate. At this time the electron cooling device is attached to the PCB substrate and placed in front of the PCB substrate. When the electron cooling device cools LED device for the heat, heat from device is released to the front of PCB substrate. That can prevent the IC driver circuits close behind the PCB substrate not to work normally because of the rising temperature.

Description

technical field [0001] The present invention relates to a backlight module suitable for a display device, and more specifically relates to a cooling device capable of effectively cooling the heat generated by a light source of the backlight module. Background technique [0002] Recently, liquid crystal displays (Liquid Crystal Displays), which control images displayed on liquid crystals, have attracted more and more attention as flat display devices. [0003] Generally, such a liquid crystal display is equipped with a backlight module that additionally generates and supplies light because it does not emit light itself. [0004] At present, fluorescent lamps (cold cathode light) or EL (Electro Luminescence) are mainly used as the light source of the backlight module. Diode) trend. However, such light-emitting diode devices are prone to aging due to local temperature rise in their interiors, and so far have not been able to achieve a satisfactory level or lifetime. [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1335
Inventor 李胜民
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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