LED device and its making method

A technology of light-emitting diodes and manufacturing methods, which is applied to electrical components, circuits, semiconductor devices, etc., can solve problems such as uneven luminous intensity, and achieve the effects of improving uneven luminous intensity and homogenizing the luminous area

Inactive Publication Date: 2008-08-13
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the above-mentioned mirror body 22 is a circularly symmetrical structure, the light-emitting area A is also in a circularly symmetrical shape. When a plurality of light-emitting diode devices 2 are arranged and used as a backlight source for a backlight module, the adjacent light-emitting diode devices 2 will be separated. The luminous areas A overlap each other, resulting in uneven luminous intensity

Method used

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  • LED device and its making method
  • LED device and its making method
  • LED device and its making method

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Embodiment Construction

[0053] A light emitting diode device according to a preferred embodiment of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols.

[0054] Please refer to Figure 4A and Figure 4B As shown, a light emitting diode device 3 according to a preferred embodiment of the present invention includes a substrate 31 , at least one light emitting diode element 32 and a light modulating element 33 .

[0055]The LED element 32 is disposed on the substrate 31 . In this embodiment, the substrate 31 is generally an epitaxial substrate. The LED element 32 includes a first semiconductor layer 321 , a light emitting layer 322 and a second semiconductor layer 323 in sequence. The first semiconductor layer 321 is disposed on the substrate 31, and the light emitting layer 322 is disposed between the first semiconductor layer 321 and the second semiconductor layer 323. In addition, the light emi...

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Abstract

A light emitting diode device comprises a substrate, at least one light emitting diode component and a light modulating component, wherein, the light emitting diode component is arranged on the substrate and generates a light beam. The light modulating element is arranged at the side of the light emitting diode element and comprises first surface and second surfaces which are oppositely arranged, the first surface is arranged with a plurality of step-shaped projections which can adjust the light field shape of the light beam or the intensity distribution of the light field. Additionally a method for manufacturing the light emitting diode device is simultaneously disclosed.

Description

technical field [0001] The present invention relates to an electroluminescent device and its manufacturing method, in particular to a light emitting diode device and its manufacturing method. Background technique [0002] A light emitting diode (Light Emitting Diode, LED) is a kind of luminescent light-emitting element, which utilizes the energy released by the combination of electrons and holes in a semiconductor material, and releases it in the form of light. According to the different materials used, it can emit monochromatic light of different wavelengths, and can be mainly divided into two types: visible light-emitting diodes and invisible light (infrared) light-emitting diodes. Compared with traditional light bulbs, light-emitting diodes are energy-saving. , shock resistance and fast flashing speed, etc., so it has become an indispensable important component in daily life. [0003] Please refer to figure 1 , which is a schematic diagram of a conventional LED device. ...

Claims

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Application Information

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IPC IPC(8): H01L33/00H01L33/48H01L33/58
Inventor高旗宏王宏洲陈煌坤
OwnerDELTA ELECTRONICS INC