BACKLIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

• US 20080143918A1
• Filed: 12/13/2007
• Published: 06/19/2008
• Est. Priority Date: 12/13/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: KIM, Heung-seok
• Application Number:
  US11/956,222
• Publication Number:
  US 20080143918A1
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

A backlight assembly which is capable of being applied to accommodate liquid crystal displays having various sizes regardless of the size of the liquid crystal display and produced at low cost, and a liquid crystal display including the same. The backlight assembly, comprising a light source generating light, a bottom chassis comprising a sidewall and a bottom surface and receiving the light source therein a corner-part mold frame disposed at a corner of the bottom chassis, and a mid-part mold frame between the corners of the bottom chassis, wherein the corner-part mold frame and mid-part mold frame have a different shape from each other.

Claims

1. A backlight assembly, comprising:

a light source generating light;

a bottom chassis comprising a sidewall and a bottom surface and receiving the light source therein;

a corner-part mold frame disposed at a corner of the bottom chassis; and

a mid-part mold frame between the corners of the bottom chassis, wherein the corner-part mold frame and mid-part mold frame have a different shape from each other.

2. The backlight assembly of claim 1, wherein a plurality of the corner-part mold frame and the mid-part mold frame is alternately disposed to make a closed loop.

3. The backlight assembly of claim 1, wherein at least one of the corner-part mold frame and the mid-part mold frame comprise a first groove at the bottom thereof.

4. The backlight assembly of claim 1, wherein at least one of the corner-part mold frame and the mid-part mold frame comprise a second groove protruding from the inner surface thereof.

5. A liquid crystal display comprising:

a light source;

an optical plate provided on the light source;

a optical sheet provided on the optical plate;

a bottom chassis comprising a sidewall and a bottom surface to receive the light source;

a first mold frame supporting the optical plate and the optical sheet; and

a liquid crystal panel disposed on the first mold frame and displaying images,

wherein the first mold frame comprises a first groove into which the sidewall of the bottom chassis is inserted to be held.

6. The liquid crystal display of claim 5, wherein the first mold frame comprises a second groove into which the optical plate and the optical sheet are inserted.

7. The liquid crystal display of claim 6, wherein the second groove is defined by a pair of protrusions comprising an upper protrusion and a lower protrusion and protruding from an inner surface of a first mold frame sidewall, and

wherein the liquid crystal panel is disposed on the upper protrusion.

8. The liquid crystal display of claim 5, further comprising:

a second mold frame being connected with the first mold frame and comprising a lower groove into which the sidewall of the bottom chassis is inserted to be held.

9. The liquid crystal display of claim 8, wherein the second mold frame comprises a second groove into which the optical plate and the optical sheet are inserted.

10. The liquid crystal display of claim 9, wherein the second groove is a lateral groove.

11. The liquid crystal display of claim 8, wherein the second mold frame has a straight shape.

12. The liquid crystal display of claim 5, further comprising a reflection sheet provided on the bottom chassis comprising at least one inclined surface corresponding to the sidewall of the bottom chassis, and

wherein the inclined surface of the reflection sheet has lamp insertion holes through which the lamps are inserted.

13. The liquid crystal display of claim 5, wherein the first mold frame has a bending shape and is disposed at a corner of the bottom chassis.

14. The liquid crystal display of claim 8, wherein the first mold frame and the second mold frame is alternately disposed to make a closed loop.

15. A liquid crystal display comprising:

an optical plate;

an optical sheet provided on the optical plate;

a bottom chassis comprising a sidewall and a bottom surface to receive the optical plate;

a first mold frame supporting the optical sheet; and

a liquid crystal panel disposed on the first mold frame and displaying images,

wherein the first mold frame comprises a first groove into which the sidewall of the bottom chassis is inserted to be held.

16. The liquid crystal display of claim 15, further comprising:

a light source provided on one side or both sides of the optical plate.

17. The liquid crystal display of claim 15 wherein the first mold frame further comprises a second groove into which the optical sheet is inserted.

18. The liquid crystal display of claim 17, wherein the second groove is defined by a pair of protrusions comprising an upper protrusion and a lower protrusion and protruding from an inner surface of a first mold frame sidewall, and

wherein the liquid crystal panel is disposed on the upper protrusion.

19. The liquid crystal display of claim 15, further comprising:

a second mold frame being connected with the first mold frame and comprising a lower groove into which the sidewall of the bottom chassis is inserted to be held.

20. The liquid crystal display of claim 19, wherein the second mold frame comprises a second groove into which optical sheet is inserted.

21. The liquid crystal display of claim 20, wherein the second groove is a lateral groove.

22. The liquid crystal display of claim 19, wherein the second mold frame has a straight shape.

23. The liquid crystal display of claim 15, wherein the first mold frame has a bending shape and is disposed at a corner of the bottom chassis.

24. The liquid crystal display of claim 18, wherein the first mold frame and the second mold frame is alternately disposed to make a closed loop.