BACK-LIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME

• US 20080079865A1
• Filed: 07/31/2007
• Published: 04/03/2008
• Est. Priority Date: 08/10/2006
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Jeoung-gwen, Kang, Sang-min
• Granted Patent: US 7,948,573 B2
• Time in Patent Office: Days
• US Class Current: 349/61
• CPC Class Codes: F21V 19/009 the support means engaging the vessel of the source
• CPC Class Codes: G02F 1/133604 with lamps
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

A back-light assembly capable of preventing light leakage and a liquid crystal display including the same. The back-light assembly includes a lamp emitting light, a lamp holder comprising a reflecting part into which the lamp is inserted and an absorbing part, wherein the absorbing part absorbs the light, and the reflecting part reflects the light, a side member comprising a through hole, the lamp being inserted into the through hole, and a bottom chassis comprising a bottom surface and side surfaces, the side surfaces extending from the bottom surface.

Claims

1. A back-light assembly comprising:

a lamp emitting light;

a lamp holder comprising a reflecting part into which the lamp is inserted and an absorbing part, wherein the absorbing part absorbs the light, and the reflecting part reflects the light;

a side member comprising a through hole, the lamp being inserted into the through hole; and

a bottom chassis comprising a bottom surface and side surfaces, the side surfaces extending from the bottom surface.

2. The back-light assembly of claim 1, wherein the lamp holder is joined with the through hole.

3. The back-light assembly of claim 2, wherein at least a portion of the reflecting part protrudes through the through hole from an accommodating space defined by an insertion surface and the side surfaces adjacent the insertion surface, wherein the side member further comprises the insertion surface in which the through hole is formed.

4. The back-light assembly of claim 1, wherein the reflecting part and the absorbing part are accommodated in an accommodating space defined by an insertion surface and the side surfaces adjacent the insertion surface, wherein the side member further comprises the insertion surface in which the through hole is formed.

5. The back-light assembly of claim 1, wherein the reflecting part includes a downwardly inclined inserting surface into which a lamp is inserted.

6. The back-light assembly of claim 1, wherein bottom chassis further comprises a joint hole being formed in the bottom surface, wherein the absorbing part comprises a support part supporting the lamp and a hook part located at a lower side of the support part, wherein the hook part is hooked to the joint hole.

7. The back-light assembly of claim 6, wherein:

the absorbing part further comprises a stepped part protruding from the support part; and

the bottom chassis is positioned between the stepped part and the hook part.

8. The back-light assembly of claim 6, wherein:

the reflecting part further comprises a stepped part protruding from the support part; and

the bottom chassis is positioned between the stepped part and the hook part.

9. The back-light assembly of claim 1, wherein bottom chassis further comprises a joint hole being formed in the bottom surface, wherein the joint hole receives a portion of the absorbing part therein, wherein the absorbing part comprises a lamp wire drawing hole leading to the joint hole

10. The back-light assembly of claim 1, wherein the reflecting part is formed of a white resin, and the absorbing part is formed of a black resin.

11. A liquid crystal display comprising:

a back-light assembly comprising a lamp emitting light, a lamp holder comprising a reflecting part into which the lamp is inserted and an absorbing part, wherein the absorbing part absorbs the light, and the reflecting part reflects the light, a side member comprising a through hole, the lamp being inserted into the through hole, and a bottom chassis comprising a bottom surface and side surfaces, the side surfaces extending from the bottom surface; and

a liquid crystal panel assembly receiving the light.

12. The liquid crystal display of claim 11, wherein the lamp holder is joined with the through hole.

13. The liquid crystal display of claim 12, wherein at least a portion of the reflecting part protrudes through the through hole from an accommodating space defined by an insertion surface and the side surfaces adjacent the insertion surface, wherein the side member further comprises the insertion surface in which the through hole is formed.

14. The liquid crystal display of claim 11, wherein the reflecting part and the absorbing part are accommodated in the accommodating space defined by an insertion surface and the side surfaces adjacent the insertion surface, wherein the side member further comprises the insertion surface in which the through hole is formed.

15. The liquid crystal display of claim 11, wherein the reflecting part includes a downwardly inclined inserting surface into which a lamp is inserted.

16. The liquid crystal display of claim 11, wherein bottom chassis further comprises a joint hole being formed in the bottom surface, wherein the absorbing part comprises a support part supporting the lamp and a hook part located at a lower side of the support part, wherein the hook part is hooked to the joint hole.

17. The liquid crystal display of claim 16, wherein:

the absorbing part further comprises a stepped part protruding from the support part; and

the bottom chassis is positioned between the stepped part and the hook part.

18. The liquid crystal display of claim 16, wherein:

the reflecting part further comprises a stepped part protruding from the support part; and

the bottom chassis is positioned between the stepped part and the hook part.

19. The liquid crystal display of claim 11, wherein bottom chassis further comprises a joint hole being formed in the bottom surface, wherein the joint hole receives a portion of the absorbing part therein, wherein the absorbing part comprises a lamp wire drawing hole leading to the joint hole.

20. The liquid crystal display of claim 11, wherein the reflecting part is formed of a white resin, and the absorbing part is formed of a black resin.