Direct-type backlight module having fixing member and elastic members cooperatively fixing light sources

• US 7,699,484 B2
• Filed: 06/06/2008
• Issued: 04/20/2010
• Est. Priority Date: 06/08/2007
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: Innolux Display Corporation (InnoLux Corporation)
• Inventors: Teng, Hsuan-Yu
• Primary Examiner(s): Lee; Y My Quach
• Application Number:
  US12/157,018
• Publication Number:
  US 20080304259A1
• Time in Patent Office: 683 Days
• Field of Search: 362/97.1, 362/97.2, 362/97.3, 362/97.4, 362/217.11, 362/217.12, 362/217.13, 362/217.15, 362/217.16, 362/217.17, 362/225, 362/288, 362/396, 362/632, 362/633, 362/634
• US Class Current: 362/97.3
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133608 including particular frames or supporting means

Abstract

An exemplary direct-type backlight module includes light sources, a frame, and a fixing member. Each light source includes a supporting strip and at least one light-emitting member provided with the supporting strip. The frame includes a bottom plate. The bottom plate includes elastic members. The fixing member is engaged with the elastic members thereby fixing the supporting strips of the light sources to the bottom plate of the frame. A liquid crystal display using the backlight module is also provided.

Claims

1. A direct-type backlight module comprising:

a plurality of light sources, each light source comprising a supporting strip and at least one light-emitting member provided with the supporting strip;

a frame comprising a bottom plate, the bottom plate comprising a plurality of elastic members and a plurality of recesses, the light sources received in the recesses respectively, a thickness of each of the supporting strips of the light sources being greater than a depth of each of the recesses; and

a fixing member, the fixing member being engaged with the elastic members thereby removably fixing the supporting strips of the light sources to the bottom plate of the frame.

2. The direct-type backlight module in claim 1, wherein the light-emitting members are light-emitting diodes.

3. The direct-type backlight module in claim 1, wherein the recesses are arranged in a matrix pattern, the matrix pattern comprising two columns and a plurality of rows.

4. The direct-type backlight module in claim 3, wherein each elastic member among a plurality of the elastic members is located between two corresponding adjacent recesses.

5. The direct-type backlight module in claim 1, wherein each elastic member comprises a bending portion extending from the bottom plate and an extending portion extending from the bending portion, an angle between the bending portion and the extending portion being approximately equal to or less than 90 degrees.

6. The direct-type backlight module in claim 5, wherein the fixing member is elastically held in position between the extending portions of the elastic members and the supporting strips of the light sources.

7. The direct-type backlight module in claim 6, wherein each extending portion comprises a notch defined therein, the notch accommodating part of the fixing member.

8. The direct-type backlight module in claim 1, wherein the fixing member is a bar.

9. A direct-type backlight module comprising:

a plurality of light sources, each light source comprising a supporting strip and at least one light-emitting member provided with the supporting strip;

a frame comprising a bottom plate, the bottom plate comprising a plurality of elastic members and a plurality of recesses, the recesses arranged in a matrix pattern, the matrix pattern comprising two columns and a plurality of rows, the light sources received in the recesses respectively; and

a fixing member, the fixing member being engaged with the elastic members thereby removably fixing the supporting strips of the light sources to the bottom plate of the frame.

10. The direct-type backlight module in claim 9, wherein the light-emitting members are light-emitting diodes.

11. The direct-type backlight module in claim 9, wherein each elastic member among a plurality of the elastic members is located between two corresponding adjacent recesses.

12. The direct-type backlight module in claim 9, wherein each elastic member comprises a bending portion extending from the bottom plate and an extending portion extending from the bending portion, an angle between the bending portion and the extending portion being approximately equal to or less than 90 degrees.

13. The direct-type backlight module in claim 9, wherein a thickness of each of the supporting strips of the light sources is greater than a depth of each of the recesses.

14. The direct-type backlight module in claim 12, wherein the fixing member is elastically held in position between the extending portions of the elastic members and the supporting strips of the light sources.

15. A direct-type backlight module comprising:

a plurality of light sources, each light source comprising a supporting strip and at least one light-emitting member provided with the supporting strip;

a frame comprising a bottom plate, the bottom plate comprising a plurality of elastic members, each elastic member comprising a bending portion extending from the bottom plate and an extending portion extending from the bending portion, an angle between the bending portion and the extending portion being approximately equal to or less than 90 degrees; and

a fixing member;

the fixing member elastically held in position between the extending portions of the elastic members and the supporting strips of the light sources thereby removably fixing the supporting ships of the light sources to the bottom plate of the frame.

16. The direct-type backlight module in claim 15, wherein the light-emitting members are light-emitting diodes.

17. The direct-type backlight module in claim 15, wherein the bottom plate further comprises a plurality of recesses, the light sources being received in the recesses respectively.

18. The direct-type backlight module in claim 17, wherein the recesses are arranged in a matrix pattern, the matrix pattern comprising two columns and a plurality of rows.

19. The direct-type backlight module in claim 18, wherein each elastic member among a plurality of the elastic members is located between two corresponding adjacent recesses.

20. The direct-type backlight module in claim 17, wherein a thickness of each of the supporting strips of the light sources is greater than a depth of each of the recesses.