IP Library Granted Patent US 7,637,648
Granted Patent B2
US 7,637,648 · App. 11/648,612 · Granted Dec 29, 2009

Portable display device

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Quick Facts
Patent No.
US 7,637,648
App. No.
11/648,612
Granted
Dec 29, 2009
Kind
B2
Abstract

A portable display device minimizes protrusions of a light emitting display panel, such as an organic light emitting display panel, and an integrated circuit to allows the thickness thereof to be reduced. The portable display device includes a light emitting display panel, such as an organic light emitting display panel. A metal plate is located on a rear surface of the organic light emitting display panel. A bottom chassis receives another light emitting display panel, such as a liquid crystal display panel and a backlight assembly. A first printed circuit board is located between the organic light emitting display panel and the bottom chassis. At least a part of either the organic light emitting display panel or the metal plate is arranged in opening portions of the bottom chassis and the first printed circuit board.

Claims (26)

1. A portable display device comprising:

a first light emitting display panel having a front surface and a rear surface;

a metal plate arranged on the rear surface of the first light emitting display panel;

a bottom chassis having opening portions and adapted to receive a second light emitting display panel; and

a first printed circuit board having opening portions and arranged between the first light emitting display panel and the bottom chassis;

wherein at least a part of either the first light emitting display panel or the metal plate is arranged in the opening portions of both the bottom chassis and the first printed circuit board.

2. The portable display device according to claim 1 , wherein at least a part of the metal plate is arranged in one of the opening portions of the bottom chassis.

3. The portable display device according to claim 2 , wherein the metal plate includes a convex portion and wherein at least a part of the convex portion is arranged in one of the opening portions of the bottom chassis.

4. The portable display device according to claim 1 , wherein at least a part of the first light emitting display panel is arranged in one of the opening portions of the first printed circuit board.

5. The portable display device according to claim 1 , further comprising a second printed circuit board having opening portions and arranged between the first printed circuit board and the bottom chassis.

6. The portable display device according to claim 5 , wherein at least a part of the metal plate is arranged in the opening portion of the second printed circuit board.

7. The portable display device according to claim 1 , further comprising a flexible printed circuit board arranged on one side of the first light emitting display panel, and an integrated circuit arranged on the flexible printed circuit board and adapted to supply a drive signal to the first light emitting display panel.

8. The portable display device according to claim 7 , wherein the flexible printed circuit board is mounted horizontally, and includes a pad portion arranged on an upper portion of the flexible printed circuit board.

9. The portable display device according to claim 8 , wherein the flexible printed circuit board is connected to the first printed circuit board through the pad portion.

10. The portable display device according to claim 9 , wherein a first pad portion is arranged on a rear surface of the first printed circuit board, and is connected to the pad portion of the flexible printed circuit board.

11. The portable display device according to claim 10 , wherein the first printed circuit board is adapted to supply a control signal to the flexible printed circuit board.

12. The portable display device according to claim 7 , wherein the integrated circuit is arranged on an upper portion of the flexible printed circuit board.

13. The portable display device according to claim 12 , wherein at least a part of the integrated circuit is arranged in one of the opening portions of the first printed circuit board.

14. The portable display device according to claim 1 , wherein the first light emitting display panel comprises an organic light emitting display panel.

15. The portable display device according to claim 1 , wherein the second light emitting display panel comprises a liquid crystal display panel and a backlight assembly.

16. The portable display device according to claim 2 , wherein the first light emitting display panel comprises an organic light emitting display panel.

17. The portable display device according to claim 2 , the second light emitting display panel comprises a liquid crystal display panel and a backlight assembly.

18. The portable display device according to claim 3 , wherein the first light emitting display panel comprises an organic light emitting display panel.

19. The portable display device according to claim 3 , the second light emitting display panel comprises a liquid crystal display panel and a backlight assembly.

20. The portable display device according to claim 4 , wherein the first light emitting display panel comprises an organic light emitting display panel.

21. The portable display device according to claim 4 , the second light emitting display panel comprises a liquid crystal display panel and a backlight assembly.

Assignments (3)
DIVESTITURE Recorded Sep 21, 2012
From: SAMSUNG MOBILE DISPLAY CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029070/0516 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2008
From: SAMSUNG SDI CO., LTD.
To: SAMSUNG MOBILE DISPLAY CO., LTD.
Reel/Frame 022034/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2007
From: JUNG, YOUN-HWAN; LEE, MUN-HEE; CHUNG, JAE-MO
To: SAMSUNG SDI CO., LTD., A CORPORATION ORGANIZED UNDER THE LAWS OF THE REPUBLIC OF KOREA
Reel/Frame 018765/0199 →