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Light source module and backlight unit

A light source module and light-emitting element technology, which is applied in the direction of light source, electric light source, optical element, etc., can solve the problems of light-emitting wavelength shift, light-emitting diode light-emitting efficiency reduction, and affect the display quality of liquid crystal display, etc., to achieve good heat dissipation efficiency and stable quality Effect

Active Publication Date: 2008-07-16
AU OPTRONICS CORP
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Problems solved by technology

[0004] Since the light-emitting diodes will generate heat when they emit light, if the heat dissipation of the backlight unit is not good, the temperature of the light-emitting diodes will be too high, which will lead to a decrease in the luminous efficiency of the light-emitting diodes and a shift in the light-emitting wavelength, thereby affecting the display quality of the liquid crystal display.

Method used

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  • Light source module and backlight unit
  • Light source module and backlight unit

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Embodiment Construction

[0042] Fig. 1 is a top view of a light source module according to an embodiment of the present invention, and Fig. 2 is a schematic cross-sectional view along line I-I' of Fig. 1 . Referring to FIG. 1 and FIG. 2 , the light source module 100 of this embodiment includes a circuit board 110 , a plurality of light emitting elements 120 and a heat dissipation element 130 . The circuit board 110 has a patterned metal layer 114. Furthermore, in this embodiment, the circuit board 110 includes a substrate 112, and the substrate 112 has a bearing surface 112a, and the patterned metal layer 114 is disposed on the bearing surface 112a. The patterned metal layer 114 includes a plurality of connection portions 114a and pattern lines 114b, and the pattern lines 114b are connected to the connection portions 114a. The light emitting elements 120 are respectively disposed on one of the connecting portions 114a. The heat dissipation element 130 is disposed on the circuit board 110 and contacts...

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Abstract

A light source module comprises a circuit board, a plurality of luminous elements and at least a radiating element. The circuit board is provided with a patterning metal layer, which comprises a plurality of connecting parts and a pattern line which is connected with the connecting part. The luminous elements are respectively allotted on one of the connecting parts. The radiating element is allotted on the circuit board and contacted with the patterning metal layer. The radiating element and the luminous elements are at the same side of the circuit board. The light source module has good radiating efficiency. In addition, the invention also provides a back light unit which uses the light source module.

Description

technical field [0001] The present invention relates to a light source module, and in particular to a light source module applicable to a backlight unit (BLU) and a backlight unit using the light source module. Background technique [0002] In recent years, flat panel displays developed in conjunction with optoelectronic and semiconductor manufacturing technologies have gradually become the mainstream of display products due to their advantages of thin thickness and light weight. Common flat-panel displays include liquid crystal display (LCD), organic electro-luminescence display (OLED) and plasma display panel (PDP), among which liquid crystal displays have a relatively high market penetration rate. . [0003] A liquid crystal display is mainly composed of a liquid crystal display panel (LCD panel) and a backlight unit, wherein the backlight unit is used to provide a surface light source required by the liquid crystal display panel. A conventional backlight unit uses a co...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V29/00F21V19/00F21V8/00G02F1/13357F21Y101/02F21V29/503G02F1/1335
Inventor 何雅婷许圣志
Owner AU OPTRONICS CORP
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