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Backlight module

A backlight module and chromatic light technology, applied in optics, optical components, nonlinear optics, etc., can solve the problem of increasing the size of the backlight module and achieve the effect of improving the size of the light guide plate

Inactive Publication Date: 2007-07-25
INNOCOM TECH SHENZHEN +1
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  • Abstract
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Problems solved by technology

[0012] Therefore, the main purpose of the present invention is to provide a light-emitting diode light-mixing element including LED chips of different colors and compensation films corresponding to the LED chips of each color, so that the multi-color light generated by the multi-color light-emitting diodes can be fully mixed in the backlight module. to generate white light to solve the problem of increasing the size of the backlight module due to the need to generate white light in existing light-emitting diodes

Method used

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[0042] Please refer to FIG. 3 . FIG. 3 is a schematic cross-sectional view of a backlight module 64 of the present invention. As shown in FIG. 3 , the backlight module 64 of the present invention includes a transparent light guide plate 66 , a plurality of optical films 68 , 70 , and at least one LED light mixing element 50 as a side light source.

[0043]As shown in Figure 3. One side surface of the light guide plate 66 is a light incident surface 72 for receiving the light generated by the side light source. In addition, the light guide plate 66 further includes a light emitting surface 73 disposed on the upper surface of the light guide plate 66, and a reflective layer (not shown) is respectively provided on the light incident surface 72 and other surfaces of the light guide plate 66 other than the light emitting surface 73. , so that the light entering the light guide plate 66 from the light incident surface 72 can only leave the light guide plate 66 from the light exit s...

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Abstract

A backlight module consists of a light guide plate formed by a light incoming surface and a light outgoing surface, at least one LED light mixture element set near to light incoming surface and used as light source of said module and at least one spectrum transducer set on light outgoing surface. It is featured as forming said LED light mixture element by the first color LED chip and corresponding first color compensation film both set on said light incoming surface as well as the second color LED chip and corresponding second color compensation film both set on said light incoming surface.

Description

technical field [0001] The invention provides a backlight module, in particular to a backlight module with a light-emitting diode light mixing element capable of generating white light. Background technique [0002] Due to the advantages of light emitting diodes (LEDs) such as long life, small size, high shock resistance, low heat generation and low power consumption, light emitting diodes have been widely used in indicator lights of home appliances and various instruments or light source. And in recent years, due to the development of light-emitting diodes towards multi-color and high-brightness, their application range has been expanded to various portable or large electronic products, used as backlights for displays, lamps, warning signs and outdoor multimedia Color kanban, etc., have become a new lighting source with the concept of power saving and environmental protection. [0003] Please refer to FIG. 1 . FIG. 1 is a schematic cross-sectional view of a conventional L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357H01L33/00G02B1/10G02F1/1335H01L33/58
CPCH01L2224/48091H01L2224/48227
Inventor 游川倍黎瑞雍
Owner INNOCOM TECH SHENZHEN
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