Frame and bezel structure for backlight unit

• US 6,976,781 B2
• Filed: 05/28/2003
• Issued: 12/20/2005
• Est. Priority Date: 10/25/2002
• Status: Expired due to Term

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Chu, Chi-Chih, Chou, Hui-Kai, Cheng, Wen-Yuan
• Primary Examiner(s): Sember, Thomas M.
• Assistant Examiner(s): Negron, Ismael
• Application Number:
  US10/446,103
• Publication Number:
  US 20040080952A1
• Time in Patent Office: 937 Days
• Field of Search: 362/23, 362/26, 362/28, 362/31, 362/551, 362/559, 362/560, 362/561, 362/362, 362/367, 362/368, 362/374, 362/382, 362/396, 362/433, 362/444, 362/600, 362/632, 362/633, 362/634, 349/58, 349/60, 349/56, 385/129, 402/04, 402/09, 401/240.2, 406/610.2, 405/41, 405/49, 407/00, 407/14, 407/81
• US Class Current: 362/633
• CPC Class Codes: G02B 6/0086 Positioning aspects
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package

Abstract

A frame including a first edge and a second edge, wherein on outer surfaces of the first edge, first hooks are formed to protrude outwardly, and on outer surfaces of the second edge, first holes are formed. A bezel has a first sidewall and a second sidewall, wherein on the first sidewall, second holes are formed, and on outer surfaces of the second sidewall, second hooks are formed to protrude outwardly. When the frame is mounted onto the bezel, the first edge is disposed onto inside surfaces of the first sidewall, and the first hooks are inserted and engaged in the second holes for fastening the frame and bezel, simultaneously the second edge is disposed onto the outside surfaces of the second sidewall, and the second hooks are inserted and engaged in the first holes for fastening the frame and the bezel.

Claims

1. An assembling structure of a backlight module for containing and fabricating components of said backlight module, said assembling structure comprising:

a frame, having a first edge and a second edge, wherein on outer surfaces of said first edge a plurality of first hooks are formed to protrude outwardly, and on outer surfaces of said second edge a plurality of first holes are formed;

a bezel, made of metal material, having a first sidewall and a second sidewall, wherein on said first sidewall a plurality of second holes are formed, and on outer surfaces of said second sidewall a plurality of second hooks are formed to protrude outwardly;

wherein said first edge is disposed onto inside surfaces of said first sidewall, said first hooks are inserted and engaged in said second holes, said second edge is disposed onto outside surfaces of said second sidewall, and said second hooks are inserted and engaged in said first holes as said frame is mounted onto said bezel.

2. The assembling structure of claim 1, wherein said frame is made of resin material.

3. The assembling structure of claim 1, wherein a tubular lamp of said backlight module is disposed inside and adjacent to said second sidewall of said bezel.

4. The assembling structure of claim 1, wherein said frame has a rectangular shape, and said first edge of said frame is a short edge, and said second edge of said frame is a long edge.

5. The assembling structure of claim 1, wherein said bezel has a rectangular board, and said first sidewall and said second sidewall are erect from edges of said rectangular board, said first sidewall is a short sidewall of said bezel and said second sidewall is a long sidewall thereof.

6. An assembling structure of a backlight module for containing and assembling components of said backlight module, said assembling structure comprising:

an upper frame, made of resin material, having a first edge and a second edge, wherein on outside surfaces of said first edge first hooks are formed to protrude outwardly, and on said second edge first holes are formed; and

a lower frame, made of metal material, having a third edge and a fourth edge, wherein on said third edge second holes are formed, and on outside surfaces of said forth edge second hooks are formed to protrude outwardly;

wherein said first edge is disposed inside said third edge and said first hooks are inserted and engaged in said second holes, said second edge is attached to the outside surfaces of said fourth edge, and said second hooks are inserted and engaged in said first holes as the upper frame is mounted onto the lower frame.

7. The assembling structure of claim 6, wherein a tubular lamp of said backlight module is disposed inside said fourth edge of said lower frame.

8. A backlight unit comprising:

a bezel made of metal material, having a first sidewall and a second sidewall, wherein on said first sidewall a plurality of first holes are formed, and on outer surfaces of said second sidewall a plurality of first hooks are formed to protrude outwardly;

a lightguide plate, disposed above said bezel;

a frame, disposed above said lightguide plate and mounted onto said bezel, having a first edge and a second edge, wherein on outer surfaces of said first edge a plurality of second hooks are formed to protrude outwardly, and on outer surfaces of said second edge a plurality of second holes are formed, wherein said first edge is disposed onto inside surfaces of said first sidewall, and said second hooks are inserted and engaged in said first holes for fastening said frame and said bezel, simultaneously said second edge is disposed onto outside surfaces of said second sidewall, and said first hooks are inserted and engaged in said second holes for fastening said frame and said bezel; and

a tubular lamp, disposed on said bezel, beside said lightguide plate, and adjacent to inside surfaces of said second sidewall of said bezel.

9. The backlight unit of claim 8, wherein said frame is made of resin material.

10. The backlight unit of claim 8, further comprising a reflector sheet, disposed on said bezel and beneath said lightguide plate.

11. The backlight unit of claim 8, further comprising optical films, disposed on said lightguide plate and under said frame.

12. The backlight unit of claim 8, wherein said frame has a rectangular shape, and said first edge of said frame is a short edge, and said second edge of said frame is a long edge.

13. The backlight unit of claim 12, wherein said bezel has a rectangular board, and said first sidewall and said second sidewall are erect from edges of said rectangular board, said first sidewall is a short sidewall of said bezel and said second sidewall is a long sidewall thereof.