IP Library › Granted Patent US 8,926,116
Granted Patent B2
US 8,926,116 · App. 13/733,751 · Granted Jan 6, 2015

Display device

Inventors: Sung Yong Kang (Asan-si, KR); Taek-Sun Shin (Hwaseong-si, KR); In Sun Hwang (Suwon-si, KR)
Assignee: Samsung Display Co., Ltd.
G02B6/0066G02B6/0073
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Quick Facts
Patent No.
US 8,926,116
App. No.
13/733,751
Granted
Jan 6, 2015
Kind
B2
Abstract

A display device includes a display panel. The display device further includes a light source attached to a surface of the display panel. The display device further includes a light guide overlapping the display panel.

Claims (49)

1. A display device comprising:

a display panel;

a light source overlapping the display panel and attached to a surface of the display panel;

a printed circuit board spaced from the display panel;

a light source driver disposed on the printed circuit board and configured for generating a signal to control the light source; and

a light guide overlapping the display panel.

2. The display device of claim 1 , wherein the display panel includes

a first substrate and a second substrate overlapping each other, and

wherein the light source is attached to a first surface of the first substrate, the first surface of the first substrate being substantially parallel to a first surface of the light guide.

3. The display device of claim 2 , wherein the light source faces a second surface of the light guide, the second surface of the light guide being not parallel to the first surface of the first substrate, and

wherein the light source is configured to irradiate light on the second surface of the light guide.

4. The display device of claim 1 , further comprising:

a connection film connecting the printed circuit board and the display panel.

5. The display device of claim 4 , further comprising:

a first wiring member connecting the light source driver and the connection film; and

a second wiring member connecting the connection film and the light source.

6. The display device of claim 5 , wherein

a first portion of the connection film is attached to the printed circuit board through the first wiring member,

a second portion of the connection film is attached to a second surface of the first substrate through the second wiring member, and

a portion of the first substrate is disposed between a first portion of the second wiring member and a second portion of the second wiring member.

7. The display device of claim 4 , wherein

the connection film includes at least one of a flexible printed circuit structure and a chip-on-film structure.

8. The display device of claim 1 , wherein

the light source includes at least one of a light emitting diode chip and a light emitting diode package.

9. The display device of claim 1 , wherein the display panel includes a display area and a non-display area, and

wherein the light source is disposed at the non-display area.

10. The display device of claim 1 , further comprising:

an optical sheet disposed between the light guide and the display panel; and

a reflector,

wherein the light guide is disposed between the optical sheet and the reflector.

11. The display device of claim 10 , wherein the light source is disposed between the reflector and the display panel.

12. The display device of claim 10 , wherein a portion of the reflector extends beyond the light guide, and wherein the light source is disposed between the display panel and the portion of the reflector.

13. The display device of claim 1 , further comprising a first light source pad,

wherein the display panel includes a first substrate and a second substrate that overlaps the first substrate, and

wherein the light source is attached to a first surface of the first substrate through the first light source pad and is configured to receive a control signal transmitted through the first light source pad.

14. The display device of claim 13 , further comprising a second light source pad,

wherein a first portion of the light source is attached to the first surface of the first substrate through the first light source pad, and

wherein a second portion of the light source is attached to the first surface of the first substrate through the second light source pad.

15. The display device of claim 14 , wherein the light source is configured to transmit a copy of the control signal to the second light source pad.

16. The display device of claim 15 , further comprising:

a second light source; and

a third light source pad electrically connected to the second light source pad and configured to transmit the copy of the control signal to the second light source,

wherein the second light source is attached to the first surface of the first substrate through the third light source pad.

17. The display device of claim 13 , further comprising:

a wiring member electrically connected to the light source driver and configured to transmit the control signal toward the light source,

wherein a portion of the first substrate is disposed between a first portion of the wiring member and a second portion of the wiring member.

18. The display device of claim 17 , wherein the portion of the first substrate overlaps the light source without overlapping the second substrate.

19. The display device of claim 17 , further comprising a connection member electrically connected between the wiring member and the light source driver, wherein the first portion of the wiring member is disposed on the first surface of the first substrate, and wherein the second portion of the wiring member is disposed between the connection member and the portion of the first substrate.

20. The display device of claim 13 , further comprising a reflector overlapping the light guide, wherein the light source is disposed between the reflector and the first light source pad.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 3, 2013
From: KANG, SUNG YONG; SHIN, TAEK-SUN; HWANG, IN SUN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029563/0666 →
Priority Claims (1)
KR 10-2012-0091801 · Aug 22, 2012 · national
Continuity (1)
Related Publication 20140056025A1 · Feb 27, 2014