IP Library Granted Patent US 8,197,113
Granted Patent B2
US 8,197,113 · App. 12/606,126 · Granted Jun 12, 2012

Display device

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Quick Facts
Patent No.
US 8,197,113
App. No.
12/606,126
Granted
Jun 12, 2012
Kind
B2
Abstract

Provided is a display device for an embodiment in which a central axis of a light guide plate (LGP) and a central axis of one or more light sources are matched with each other to maximize efficiency of the light sources, and which has an ultra-slim structure. The display device may include: a display panel which displays an image; an LGP which guides light to the display panel; light sources which are disposed on a side of the LGP and provide light to the LGP; a circuit board which is disposed on a side of the display panel with the light sources mounted on a surface thereof, and driving chips which drive the display panel mounted on an opposite surface thereof; and a frame which houses the LGP and the light sources and on which the circuit board and the display panel are mounted.

Claims (31)

1. A display device comprising:

a display panel adapted to display an image;

a light guide plate (LGP) adapted to guide light to the display panel;

one or more light sources which are disposed on a side of the LGP and adapted to provide light to the LGP;

a circuit board which is disposed on a side of the display panel, wherein the light sources are mounted on a surface thereof and driving chips which are adapted to drive the display panel are mounted on an opposite surface thereof; and

a frame which receives the LGP and the light sources and on which the circuit board and the display panel are seated.

2. The display device of claim 1 , wherein a central axis of the light sources is aligned with a central axis of the LGP.

3. The display device of claim 1 , wherein the circuit board is disposed parallel to or substantially in the same plane as the LGP.

4. The display device of claim 3 , further comprising an optical sheet which is disposed between the display panel and the LGP, wherein at least a portion of the optical sheet overlaps the circuit board.

5. The display device of claim 4 , wherein a reflective material or a light-blocking material is coated on a portion of the optical sheet which overlaps a gap between the LGP and the circuit board.

6. The display device of claim 3 , wherein the circuit board is hooked to the frame.

7. The display device of claim 6 , wherein the frame further comprises fixing protrusions which penetrate the circuit board.

8. The display device of claim 6 , wherein the frame further comprises catching protrusions which fix a side of the circuit board to the frame.

9. The display device of claim 3 , further comprising a light-blocking member which overlaps a gap between the LGP and the circuit board.

10. The display device of claim 1 , wherein the light sources are light-emitting diodes (LEDs) which emit light through side surfaces thereof.

11. The display device of claim 1 , wherein at least a portion of the circuit board protrudes out of the frame.

12. The display device of claim 1 , wherein the circuit board is disposed perpendicular to the LGP.

13. The display device of claim 12 , further comprising a light source cover which is disposed over the frame to cover the light sources and the circuit board, wherein at least a portion of the light source cover overlaps the LGP.

14. The display device of claim 12 , wherein the light sources are LEDs which emit light through top surfaces thereof.

15. The display device of claim 1 , wherein the circuit board and the display panel are connected to each other by a flexible film.

16. The display device of claim 1 , wherein the circuit board is exposed to the outside of the frame.

17. A display device comprising:

a display panel adapted to display an image;

an LGP adapted to guide light to the display panel;

one or more light sources which are disposed on a side of the LGP and are adapted to provide light to the LGP;

a circuit board which is disposed on a side of the display panel and has the light sources mounted on a surface thereof and driving chips, which are adapted to drive the display panel, mounted on an opposite surface thereof; and

a frame which receives the LGP and the light sources and on which the circuit board and the display panel are seated,

wherein the frame does not cover a top surface or a side surface of the circuit board.

18. The display device of claim 17 , wherein a central axis of the light sources is aligned with a central axis of the LGP.

19. The display device of claim 17 , wherein the circuit board is disposed parallel to or substantially in the same plane as the LGP.

20. The display device of claim 17 , wherein the circuit board is disposed perpendicular to the LGP.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029016/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2009
From: PARK, SE-KI; CHO, JOO-WOAN; SHIM, SUNG-KYU; LEE, YOUNG-KEUN
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 023424/0964 →