LIQUID CRYSTAL DISPLAY DEVICE

• US 20080030646A1
• Filed: 08/01/2007
• Published: 02/07/2008
• Est. Priority Date: 08/03/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Go, Seong-hyun
• Application Number:
  US11/832,069
• Publication Number:
  US 20080030646A1
• Time in Patent Office: Days
• US Class Current: 349/62
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side

Abstract

A liquid crystal display device, comprises a liquid crystal display panel; a light source part disposed along at least one side of the liquid crystal display panel; a light source cover, the light source cover reflecting light emitted from the light source part to the liquid crystal display panel; a panel supporting part disposed under an edge part of the liquid crystal display panel to support the liquid crystal display panel; and an optical film disposed under the liquid crystal display panel, and comprising a first area facing the liquid crystal display panel, and a second area extending below the panel supporting part, the second area comprising a plurality of protrusion parts and a plurality of cut parts alternately formed at an end of the second area, and at least part of the protrusion parts are provided on the light source cover.

Claims

1. A liquid crystal display device, comprising:

a liquid crystal display panel;

a light source part disposed along at least one side of the liquid crystal display panel;

a light source cover, the light source cover reflecting light emitted from the light source part to the liquid crystal display panel;

a panel supporting part disposed under an edge part of the liquid crystal display panel to support the liquid crystal display panel; and

an optical film disposed under the liquid crystal display panel, and comprising a first area facing the liquid crystal display panel, and a second area extending below the panel supporting part, the second area comprising a plurality of protrusion parts and a plurality of cut parts alternately formed at an end of the second area, and

at least part of the protrusion parts are provided on the light source cover.

2. The liquid crystal display device according to claim 1, wherein the cut parts extend into the first area.

3. The liquid crystal display device according to claim 1, wherein the protrusion parts are partially superposed on the light source cover.

4. The liquid crystal display device according to claim 3, wherein each of the protrusion parts facing the light source cover comprise at least one of a rectangular, a trapezoid, or a semicircular shape.

5. The liquid crystal display device according to claim 1, wherein the cut parts become wider as a distance between the cut parts and the first area increases.

6. The liquid crystal display device according to claim 1, wherein the protrusion parts extend to the first area,

the liquid crystal display panel comprises an outer black matrix formed along a perimeter of the liquid crystal display panel, and

the protrusion parts are positioned below the outer black matrix.

7. The liquid crystal display device according to claim 3, wherein the light source part comprises a lamp;

and

the density of the protrusion parts corresponding to ends of the light source part is lower than the density of the protrusion parts corresponding to a center part of the light source part.

8. The liquid crystal display device according to claim 3, wherein the light source part comprises a light emitting diode, and

the density of the protrusion parts is uniform.

9. The liquid crystal display device according to claim 3, wherein the optical film comprises a plurality of sub-optical films, and

the protrusion parts are formed on the uppermost sub-optical film.

10. The liquid crystal display device according to claim 9, wherein the uppermost sub-optical film is larger than the other sub-optical films.

11. The liquid crystal display device according to claim 3, wherein the optical film has a square shape, and the protrusion parts are formed on four sides of the optical film.

12. A liquid crystal display device, comprising:

a liquid crystal display panel;

a light source part disposed along at least one side of the liquid crystal display panel;

a light source cover, the light source cover reflecting light emitted from the light source part to the liquid crystal display panel;

a panel supporting part, the panel supporting part supporting the liquid crystal display panel; and

an optical film disposed under the liquid crystal display panel, the optical film extending between the panel supporting part and the light source cover, and comprising a plurality of protrusion parts and a plurality of cut parts alternately formed at an end of the optical film,

wherein the protrusion parts are partially superposed on the light source cover.

13. The liquid crystal display device according to claim 12, wherein a cut part not facing the light source cover becomes wider as a distance between the cut part and a center portion of the light guide plate increases.

14. A liquid crystal display device, comprising:

a liquid crystal display panel;

a light source part disposed along at least one side of the liquid crystal display panel;

a light source cover, the light source cover reflecting light emitted from the light source part to the liquid crystal display panel;

a panel supporting part disposed under an edge part of the liquid crystal display panel to support the liquid crystal display panel; and

an optical film disposed under the liquid crystal display panel, and comprising a first area facing the liquid crystal display panel, and a second area extending below the panel supporting part, the second area comprising a plurality of protrusion parts and a plurality of cut parts alternately formed at an end of the second area.

15. The liquid crystal display device according to claim 14, wherein at least part of the protrusion parts are provided on the light source cover.

16. The liquid crystal display device according to claim 15, wherein the cut parts extend into the first area.

17. The liquid crystal display device according to claim 15, wherein the protrusion parts extend to the first area,

the liquid crystal display panel comprises an outer black matrix formed along a perimeter of the liquid crystal display panel, and

the protrusion parts are positioned below the outer black matrix.

18. The liquid crystal display device according to claim 15, wherein the light source part comprises a lamp;

and

the density of the protrusion parts corresponding to ends of the light source part is lower than the density of the protrusion parts corresponding to a center part of the light source part.

19. The liquid crystal display device according to claim 15, wherein the optical film comprises a plurality of sub-optical films, and

the protrusion parts are formed on the uppermost sub-optical film.

20. The liquid crystal display device according to claim 15, wherein the optical film has a square shape, and the protrusion parts are formed on four sides of the optical film.