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Light-mixing luminous element

A light-emitting element and light-mixing technology, applied in electrical components, semiconductor devices, electric solid-state devices, etc., can solve the problems of complicated design and process, increased cost, etc.

Active Publication Date: 2010-12-15
EPISTAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the above method needs to provide a specially designed lens or a resin uniformly doped with a light-mixing substance as the light-mixing medium, the design and process are relatively complicated, and the production cost will also be increased.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0036] Figure 3A A light-mixing light-emitting element 30 according to an embodiment of the present invention is disclosed, which includes a transparent carrier 32 on which a transparent adhesive layer 34 is formed. The transparent adhesive layer 34 includes at least one material selected from polyimide A material group consisting of amine (PI), phenylcyclobutane (BCB), perfluorocyclobutane (PFCB), epoxy resin (epoxy resin), and silicone resin (Silicone), a red light (R) , green light (G), and blue light (B) light-emitting diodes 31a-31c are adhered on the transparent carrier 32 through the transparent adhesive layer 34, and emit light of different colors when driving, such as red light, green light, and blue light, wherein the transparent carrier 32 provides a light-mixing area under the LEDs 31a-31c, so that the light emitted by the LEDs 31a-31c is fully mixed in the transparent carrier to emit white light uniformly. The lower surface of the transparent carrier 32 also inc...

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Abstract

The invention relates to a light-mixing luminescence component which comprises a transparent carrier provided with a plurality of light-emitting diodes that respectively comprises a transparent base plate which can give out different lights when being driven and form lights with a certain color. The transparent carrier of the invention shapes a light-mixing area under the light-emitting diodes inorder to facilitate the lights with different colors given out by each light-emitting diode to be fully mixed and short light-mixing distance and improve light mixing efficiency of the light-emittingcomponents.

Description

technical field [0001] The invention relates to a light-emitting element, in particular to a light-mixing light-emitting element. Background technique [0002] With the improvement of light emitting diode (Light Emitting Diode; LED) luminous efficiency, the application field has gradually expanded from the traditional indicator light to the lighting field and various backlight applications, such as portable lighting devices, mobile phone backlight , And LCD screen backlight, etc. [0003] At present, white light-emitting diodes are used in the backlight of LCD screens to replace traditional cold cathode fluorescent lamps (Cold Cathode Fluorescent Lamp; CCFL for short), and have been extensively researched in the industry. One of the methods is to combine red light, green light, and blue light. When properly configured, the light emitting diodes uniformly mix the light they generate to produce white light. Such as figure 1 As shown, US Patent No. 6974229 discloses a design...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/00H01L25/075
CPCH01L2924/1815H01L2224/48091H01L2224/48137H01L2224/49107H01L2924/00014
Inventor 谢明勋
Owner EPISTAR CORP