IP Library Granted Patent US 8,240,881
Granted Patent B2
US 8,240,881 · App. 12/292,161 · Granted Aug 14, 2012

Light-emiting device package

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Quick Facts
Patent No.
US 8,240,881
App. No.
12/292,161
Granted
Aug 14, 2012
Kind
B2
Abstract

A light-emitting device package is disclosed and comprises at least one light-emitting device and a carrier. The light-emitting device includes a light-emitting diode chip attached to a first surface of a transparent substrate, wherein the chip comprises a first type conductivity semiconductor layer, an active layer and a second type conductivity semiconductor layer. The carrier comprises a p electrode, an n electrode, a platform and a reflective inside wall. The transparent substrate of the light-emitting device is attached to the platform by an adhering layer. In addition, an angle between the first surface of the transparent substrate and the platform is not equal to zero degree, and the better is about 90 degree.

Claims (49)

1. A light-emitting device package comprising:

a carrier having a platform; and

a light-emitting device comprising:

a transparent substrate having a first surface and a second surface; and

a light-emitting structure formed on the first surface of the transparent substrate, wherein the light-emitting structure comprises at least a growth substrate and an active layer with p-n junction formed on the growth substrate, and an angle between the first surface of the transparent substrate and the platform is 45-135 degree.

2. The light-emitting device package according to claim 1 , wherein the carrier is electrically connecting to the light-emitting device.

3. The light-emitting device package according to claim 1 , wherein the area of the first surface and/or the second surface is not smaller than the area of the p-n junction.

4. The light-emitting device package according to claim 1 , wherein the angle between the first surface of the transparent substrate and the platform is about 90 degree.

5. The light-emitting device package according to claim 1 , further comprising an adhering material for adhering the transparent substrate to the platform.

6. The light-emitting device package according to claim 1 , further comprising a lens positioned over the carrier.

7. The light-emitting device package according to claim 1 , wherein the carrier further comprises a reflecting layer formed on the inner surface of the carrier.

8. The light-emitting device package according to claim 1 , wherein the transparent substrate further comprises phosphors.

9. The light-emitting device package according to claim 1 , further comprising a phosphor layer coated around the light-emitting device.

10. The light-emitting device package according to claim 1 , further comprising diffusers filled in the package.

11. The light-emitting device package according to claim 1 , wherein the carrier is a printed circuit board, a ceramics substrate, or a silicon substrate.

12. A backlight module for liquid crystal display device comprising:

a carrier having a reflecting layer;

a light-emitting device package according to claim 1 attached on the reflecting layer of the carrier; and

a thin-film material formed on the carrier.

13. A backlight module for liquid crystal display device comprising:

a polarizer having a reflecting layer;

a light-emitting device package according to claim 1 disposed on the polarizer; and

a thin-film material formed on the polarizer.

14. A light-emitting device package comprising:

a carrier having a platform and a reflecting layer formed on the platform;

a plurality of transparent substrates having a first surface and a second surface respectively; and

a plurality of light-emitting devices having a plurality of light-emitting structures attached to the first surface of the plurality of transparent substrates respectively; and

an adhering material, wherein the plurality of transparent substrates is attached to the reflecting layer by the adhering material and the angle between the first surface of the transparent substrate and the platform is not equal to zero degree.

15. A backlight module for liquid crystal display device comprising:

a carrier having a reflecting layer;

a light-emitting device package according to claim 14 attached on the reflecting layer of the carrier; and

a thin-film material formed on the carrier.

16. A backlight module for liquid crystal display device comprising:

a polarizer having a reflecting layer on one surface;

a light-emitting device package according to claim 14 disposed on the polarizer; and

a thin-film material formed on the polarizer.

17. A light-emitting device package comprising:

a carrier having a platform; and

a light-emitting device comprising:

a transparent substrate having a first surface and a second surface; and

a light-emitting structure formed on the first surface of the transparent substrate, wherein the light-emitting structure has at least a growth substrate and an active layer with p-n junction formed on the growth substrate, and an angle between the p-n junction and the platform is not equal to zero degree.

18. A backlight module for liquid crystal display device comprising:

a carrier having a reflecting layer;

a light-emitting device package according to claim 17 attached on the reflecting layer of the carrier; and

a thin-film material formed on the carrier.

19. A backlight module for liquid crystal display device comprising:

a polarizer having a reflecting layer;

a light-emitting device package according to claim 17 disposed on the polarizer; and

a thin-film material formed on the polarizer.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2024
From: EPISTAR CORPORATION
To: EDISONLED LLC
Reel/Frame 069604/0414 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2008
From: HSU, CHIA-LIANG
To: EPISTAR CORPORATION
Reel/Frame 021914/0822 →