Direct-type backlight module and liquid crystal display using same

• US 20080304259A1
• Filed: 06/06/2008
• Published: 12/11/2008
• Est. Priority Date: 06/08/2007
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: Innolux Display Corporation (InnoLux Corporation)
• Inventors: Teng, Hsuan-Yu
• Granted Patent: US 7,699,484 B2
• Time in Patent Office: Days
• US Class Current: 362/225
• 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 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 bottom plate further comprises a plurality of recesses, the light sources being received in the recesses respectively.

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

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

6. 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.

7. The direct-type backlight module in claim 3, wherein a thickness of each of the supporting strips of the light sources is greater than a depth of each of the recesses.

8. The direct-type backlight module in claim 6, 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.

9. The direct-type backlight module in claim 8, wherein each extending portion comprises a notch defined therein, the notch accommodating part of the fixing member.

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

11. A liquid crystal display comprising:

a liquid crystal panel; and

a direct-type backlight module provided adjacent to the liquid crystal panel, the 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 fixing member, the fixing member engaging with the elastic members thereby removably fixing the light sources to the bottom plate of the frame.

12. The liquid crystal display in claim 11, wherein the light-emitting members are light-emitting diodes.

13. The liquid crystal display in claim 11, wherein the bottom plate further comprises a plurality of recesses, the light sources being received in the recesses respectively.

14. The liquid crystal display in claim 13, wherein the recesses are arranged in a matrix pattern, the matrix pattern comprising two columns and a plurality of rows.

15. The liquid crystal display in claim 14, wherein each elastic member among a plurality of the elastic members is provided between two adjacent recesses.

16. The liquid crystal display in claim 11, 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.

17. The liquid crystal display in claim 13, wherein a thickness of the supporting strips of the light sources is greater than a depth of the recesses.

18. The liquid crystal display in claim 16, wherein the fixing member is elastically held between the extending portions of the elastic members and the supporting strips of the light sources.

19. The liquid crystal display in claim 18, wherein each extending portion comprises a notch defined therein, the notch accommodating part of the fixing member.

20. 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 fixing member elastically urged by the elastic members, the fixing member thereby pressing the supporting strips of the light sources toward the bottom plate so as to detachably fix the light sources in position at the bottom plate.