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Light source fixing structure of backlight component

A technology for a backlight assembly and a fixed structure, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of poor heat dissipation and insufficient structural strength of the flexible printed circuit board 42

Inactive Publication Date: 2008-02-27
CHUNGHWA PICTURE TUBES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In another prior art, as shown in FIG. 1B, the backlight assembly 12 includes a light guide plate 22 and a light-emitting diode 32, wherein the light-emitting diode 32 is fixed on a flexible printed circuit board 42, and the flexible printed circuit board 42 can be used to Due to the flexible feature, the light emitting diode 32 is installed in the gap of the plastic frame 52 to provide the side light source of the light guide plate 22, but the heat dissipation of the flexible printed circuit board 42 is not good, once the operation time is too long, it is easy to cause the temperature near the light source to be too high, and this The backlight assembly 12 may have insufficient structural strength doubts

Method used

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  • Light source fixing structure of backlight component
  • Light source fixing structure of backlight component
  • Light source fixing structure of backlight component

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Embodiment Construction

[0021] The light source fixing structure of the backlight assembly of the present invention will be described below using several preferred embodiments. First, please refer to FIG. 2A , which is a cross-sectional view of the strip-shaped light emitting elements of the backlight assembly according to the first embodiment of the present invention. As shown in the figure, the strip-shaped light-emitting element 120 includes a substrate 122 , such as a printed circuit board, and at least one light-emitting diode 124 fixed on one side of the substrate 122 by a conventional method. In one embodiment, a highly conductive metal substrate 126 , such as an aluminum substrate or a copper substrate, is attached under the substrate 122 to increase the heat dissipation of the strip-shaped light emitting element 120 . The position where the LED 124 is fixed on the substrate 122 is not limited. Next, please refer to FIG. 2B, the cover body 130 includes a metal with good heat dissipation, suc...

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Abstract

A kind of light source fixation structure of the negative phototropism units, includes: a light plate, has a enter light face; a cover, has a hold flute, the hold flute has a plane face to the enter light face of the light plate; and a bar lighting element, it is hold in the plane of the hold flute, when the bar lighting element is broke, it can slip along the hold flute and been draw-off, the cover can not only strengthen the negative phototropism units whole structure, the bar light element can increase the heating area by the cover, to avoid the temperature of the negative phototropism units overtop.

Description

technical field [0001] The invention relates to a backlight assembly, and in particular provides a light source fixing structure of the backlight assembly. Background technique [0002] The backlight module (backlight module) is one of the key components of the liquid crystal display (liquid crystal display, LCD), and has been widely used in digital cameras, digital personal assistants (personal digital assistant, PDA) and flat-screen TVs. Generally speaking, the backlight assembly is usually disposed under a display panel, and has a light source and a guide light plate (LGP) for providing uniformly dispersed light on the display panel. According to the position of the light source, the backlight components can generally be divided into edge light type or side light type and bottom light type or direct light type. [0003] In addition, the light source of the backlight assembly can be a cold cathode fluorescent lamp (cold cathode fluorescent lamp, CCFL) or a light emitting ...

Claims

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Application Information

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IPC IPC(8): G02F1/1335G02F1/1333
Inventor 萧至君廖正民
Owner CHUNGHWA PICTURE TUBES LTD
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