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Lampshade structure and backlight module

A technology of backlight module and lampshade, which is applied in the field of lampshade structure and backlight module, and can solve the problems that light-emitting diodes and light guide plates cannot be closely matched, affect display brightness and image quality, and reduce the efficiency of light transmission to liquid crystal panels, etc.

Inactive Publication Date: 2008-09-03
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Take the side-facing backlight module with light-emitting diodes as the light source as an example: the light-emitting diodes are installed between the frame and the light guide plate. Due to the inevitable mechanical tolerances in the design of the frame, the light-emitting diodes and the light guide plate are often not in close proximity. Matching, once there is a gap or skew between the two, it will reduce the efficiency of light transmission to the LCD panel, thereby affecting the display brightness and image quality

Method used

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  • Lampshade structure and backlight module
  • Lampshade structure and backlight module
  • Lampshade structure and backlight module

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0040] Please refer to FIG. 1 , which shows a cross-sectional view of a liquid crystal display device applying the present invention. The liquid crystal display device 100 includes a liquid crystal panel 90 and a backlight module 105 . The backlight module 105 is disposed on the back of the liquid crystal panel 90 for providing a light source to the liquid crystal panel 90 .

[0041] The backlight module 105 of this embodiment includes a metal component 110 , a light guide plate 120 , a light emitting component 140 and a protruding structure 150 . The metal component 110 has a base plate 112 and two side plates 114 and 116 respectively disposed on two sides of the base plate 112 , and the two side plates 114 and 116 are opposite to each other. The light guide plate 120 , the base plate 112 and the two side plates 114 and 116 enclose an accommodating space 130 .

[0042] As shown in FIG. 1 , the light emitting component 140 is disposed in the accommodating space 130 , and the...

no. 2 example

[0053] The difference between the lampshade structure of this embodiment and the above embodiment lies in the arrangement of the protrusion structure, and the same reference numerals are used for other identical components, which will not be repeated here.

[0054] Please refer to image 3 , which shows a perspective view of the lampshade structure according to the second embodiment of the present invention. The lampshade structure 300 of this embodiment includes a metal part 110 and a protruding structure 250, the protruding structure 250 is disposed on the substrate 112 of the metal part 110, and the protruding structure 250 includes a plurality of parts 250a, 250b, 250c, 250d, 250e, 250f , 250g, ..., and these parts are provided separately from each other. The plurality of parts 250a, 250b, 250c, 250d, 250e, 250f, 250g... of the protruding structure 250, the adjacent intervals of each other can be regularly changed intervals, for example: the adjacent intervals are all the...

no. 3 example

[0056] The difference between the lampshade structure of this embodiment and the above embodiment lies in the arrangement of the protrusion structure, and the same reference numerals are used for other identical components, which will not be repeated here.

[0057] Please refer to Figure 4 , a perspective view of a lampshade structure according to a third embodiment of the present invention. The protruding structure 350 of the lampshade structure 400 of this embodiment is disposed on the base plate 112 of the metal component. It is shown that the protruding structure 350 includes a protruding portion 354 and two connecting portions 351 and 352 . The two connecting portions 351 and 352 are respectively disposed on the substrate 112 and opposite to each other, and both protrude from the substrate 112 toward the direction (i.e.+Y direction) of the light-emitting component (140 shown in FIG. 1 ). The protruding portion 354 is disposed on the two connecting portions 351 and 352 a...

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Abstract

The invention discloses a backlight module comprising a metal component, a light guiding plate, a luminous assembly and a projecting structure. The metal component comprises a substrate and two side plates disposed at the two sides of the substrate and facing each other. The light guiding plate, the substrate plate and two side plates surround an accommodation space in which the luminous assembly is disposed. The luminous assembly comprises at least a LED and a printed circuit board. The projecting structure is disposed between the substrate and the printed circuit board. A lamp shied structure is also disclosed.

Description

technical field [0001] The present invention relates to a lampshade structure and a backlight module, and in particular to a lampshade structure and a backlight module utilizing a point light source. Background technique [0002] The liquid crystal display includes a liquid crystal panel and a backlight module. The liquid crystal itself does not emit light, but relies on the backlight module to inject light into the liquid crystal panel to display the displayed image. The technology of the backlight module directly affects the brightness and color presentation of the liquid crystal display. [0003] The backlight module usually uses a cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL) or a light emitting diode (Light Emitting Diode, LED) as a light source. In recent years, light-emitting diodes have emerged due to their advantages such as low power consumption, long life, and no mercury, and have become one of the backlight sources expected by the market. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V3/02F21V3/04F21S8/00F21V8/00G02F1/13357F21Y101/02F21Y115/10G02F1/1335
Inventor 杨力润曾任霉
Owner AU OPTRONICS CORP
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