IP Library Granted Patent US 8,670,087
Granted Patent B2
US 8,670,087 · App. 13/897,948 · Granted Mar 11, 2014

Light emitting module and display device having the same

Inventor: Kyung Ho Shin (Seoul, KR)
Assignee: LG Innotek Co., Ltd.
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Quick Facts
Patent No.
US 8,670,087
App. No.
13/897,948
Granted
Mar 11, 2014
Kind
B2
Abstract

A light emitting module including a board, a plurality of light emitting devices on the board, a resin disposed on the plurality of light emitting devices, and a phosphor film on the resin and extending along areas between the light emitting devices, wherein the light emitting devices are spaced from each other by a predetermined distance, wherein the phosphor film is divided into parts, the parts having different phosphors being one of a red phosphor, a green phosphor or a blue phosphor and corresponding respectively to the light emitting devices, and wherein the divided phosphor films are connected to each other and makes a continuous phosphor film layer.

Claims (30)

1. A light emitting module comprising:

a board;

a plurality of light emitting devices on the board;

a resin disposed on the plurality of light emitting devices; and

a phosphor film on the resin and extending along areas between the light emitting devices,

wherein the light emitting devices are spaced from each other by a predetermined distance,

wherein the phosphor film is divided into parts, the parts having different phosphors being one of a red phosphor, a green phosphor or a blue phosphor and corresponding respectively to the light emitting devices, and

wherein the divided phosphor films are connected to each other and make a continuous phosphor film layer.

2. The light emitting module according to claim 1 , wherein the phosphor film is spaced from the plurality of light emitting devices.

3. The light emitting module according to claim 1 , wherein the phosphor film is directly in contact with both a surface of the resin and a top surface of the board between the plurality of light emitting devices.

4. The light emitting module according to claim 1 , wherein the phosphor film is directly in contact with an exposed portion of the board which is not covered by the resin.

5. The light emitting module according to claim 1 , wherein a bottom surface of the phosphor film is flush with a top surface of the board.

6. The light emitting module according to claim 1 , wherein the phosphor film comprises a bridge portion which connects adjacent phosphor film parts, and wherein the bridge portion contacts a top surface of the board.

7. The light emitting module according to claim 1 , wherein the phosphor film comprises a bridge portion which connects adjacent phosphor film parts, and wherein the bridge portion is flush with a top surface of the board which is exposed through the resin.

8. The light emitting module according to claim 1 , wherein the phosphor film is directly in contact with entire exposed portions of the board, which are not covered by the resin.

9. The light emitting module according to claim 1 , wherein the phosphor film is formed in one of a dome shape, a hemisphere shape, and a lens shape on the light emitting devices.

10. The light emitting module according to claim 1 , wherein the phosphor film is adhered to the board and the light emitting devices with a uniform thickness.

11. The light emitting module according to claim 1 , wherein each of the light emitting devices comprises at least one light emitting diode (LED).

12. The light emitting module according to claim 1 , wherein at least one of the light emitting devices emits blue light, and the phosphor film comprises a yellow phosphor.

13. The light emitting module according to claim 1 , wherein each of the light emitting devices is one of a chip or package type.

14. The light emitting module according to claim 1 , wherein the light emitting devices comprise at least one of a blue LED, a green LED, a red LED, and an ultraviolet (UV) LED, and the phosphor film comprises at least one of a blue phosphor, a green phosphor, a red phosphor, and a yellow phosphor.

15. The light emitting module according to claim 1 , wherein the light emitting devices comprise an ultraviolet (UV) LED and a blue LED, which emit light of colors different from each other.

16. The light emitting module according to claim 1 , wherein the board comprises a plurality of cavities, and the light emitting devices are disposed inside the cavities, respectively.

17. The light emitting module according to claim 1 , wherein the phosphor film comprises a first part adhering to the light emitting device and a second part adhering to the board, and the first and second parts have thicknesses different from each other.

18. The light emitting module according to claim 1 , further comprising a reflective material on a region of the board excluding a region where the plurality of light emitting devices are disposed.

19. The light emitting module according to claim 1 , wherein the resin extends along the areas between the light emitting devices and is in contact with portions of the board.

20. A display device comprising:

the light emitting module according to the claim 1 ;

an optical member spaced apart from the light emitting module; and

a display panel on the optical member.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 14, 2025
From: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
To: BOE HC SEMITEK LIMITED(HENGQIN)
Reel/Frame 070521/0027 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2021
From: LG INNOTEK CO., LTD.
To: SUZHOU LEKIN SEMICONDUCTOR CO., LTD.
Reel/Frame 056366/0335 →
Priority Claims (1)
KR 10-2008-0114730 · Nov 18, 2008 · national
Continuity (2)
Continuation 12621444 · Nov 18, 2009
Related Publication 20130265742A1 · Oct 10, 2013