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LED crystal grain, LED automobile lamp and LED crystal grain manufacturing method

A manufacturing method and grain technology, applied in the direction of motor vehicles, road vehicles, lighting device components, etc., can solve the problems of increasing the manufacturing cost of the car light structure, increasing the volume of the car light structure, etc., and achieve low manufacturing cost and small volume Effect

Inactive Publication Date: 2014-06-25
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The setting of the reflector body increases the volume of the car light structure, and also increases the manufacturing cost of the car light structure

Method used

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  • LED crystal grain, LED automobile lamp and LED crystal grain manufacturing method
  • LED crystal grain, LED automobile lamp and LED crystal grain manufacturing method
  • LED crystal grain, LED automobile lamp and LED crystal grain manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Such as figure 1 Shown is a preferred embodiment of the LED vehicle lamp 100 of the present invention, the LED vehicle lamp 100 includes a light source 10 , a light shielding portion 20 and a projection lens 30 .

[0017] Specifically, see figure 2 , the light source 10 is an LED package, which is arranged on a circuit board 40 . The light source 10 includes an LED die 11 and a packaging structure (not shown) covering the LED die 11 . The LED die 11 includes a transparent substrate 12 , a first semiconductor layer, an active layer 14 , a second semiconductor layer, a reflective layer 16 and an electrode structure 17 sequentially disposed on one side of the transparent substrate. In this embodiment, the first semiconductor layer is an N-type layer 13 , and the second semiconductor layer is a P-type layer 15 .

[0018] The transparent substrate 12 is an insulating substrate. see image 3 , the transparent substrate 12 is a regular flat plate, which includes a first ...

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PUM

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Abstract

The invention provides an LED crystal grain. The LED crystal grain comprises a transparent substrate, and a first semiconductor layer, an active layer and a second semiconductor layer sequentially formed on the surface of one side of the transparent substrate. The surface of the first semiconductor layer is partially exposed. The LED crystal grain also comprises an electrode structure electrically connected with the surface of the second semiconductor layer and the exposed partial surface of the first semiconductor layer. A light emitting surface with a concave surface is formed on the surface of the other side of the transparent substrate. The invention also provides an LED automobile lamp provided with the LED crystal grain and the LED crystal grain manufacturing method. Compared with the prior art, the LED automobile lamp provided with the LED crystal grain does not need to be provided with a reflection cover body, the light emitting surface of the LED crystal grain is excited by laser to form the concave surface, such that light is concentrated for being emitted from the concave surface and is uniformly distributed, the size of the LED automobile lamp provided with the LED crystal grain is small, and the manufacturing cost is comparatively low.

Description

technical field [0001] The invention relates to an LED crystal grain, a car lamp with the LED crystal grain and a manufacturing method of the LED crystal grain. Background technique [0002] LED (Light Emitting Diode) is a semiconductor element that converts electric current into light in a specific wavelength range. With its advantages of high luminous efficiency, small size, light weight, and environmental protection, it has been widely used in various current fields. [0003] The car light structure using LED as the illuminant generally includes an LED light source, a reflective cover, a light-shielding portion and a projection lens. The outgoing light of the LED light source is distributed along the angle, and the intensity of the outgoing light at different angles is different. As a result, the LED light source cannot be used directly with the projection lens. Therefore, a reflective cover is installed, and the LED light source emits light to the reflective cover. After...

Claims

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Application Information

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IPC IPC(8): H01L33/48H01L33/00F21V5/04F21W101/02F21Y101/02F21W107/10
CPCH01L33/10F21V5/04F21W2107/10F21Y2101/00H01L33/0066H01L33/0075
Inventor 赖志成
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD