Back light source module

• US 20060203465A1
• Filed: 12/01/2005
• Published: 09/14/2006
• Est. Priority Date: 03/09/2005
• Status: Active Grant

• Current Assignee: HannStar Display Corporation
• Original Assignee: HannStar Display Corporation
• Inventors: Chang, Chih-Li, Kao, Hung-Chen
• Granted Patent: US 7,350,955 B2
• Time in Patent Office: Days
• US Class Current: 362/29
• CPC Class Codes: F21Y 2107/10 on concave supports or substrates, e.g. on the inner side of bowl-shaped supports
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02F 1/133603 with LEDs

Abstract

A back light source module of a liquid crystal device is provided. The back light source module includes a backplate, a light source fixture disposed on the backplate. The back light source module also includes a first light source having a first normal line and disposing on the light source fixture, a second light source having a second normal line and disposing on the light source fixture, and a third light source having a third normal line and disposing on the light source fixture. Among them, a first angle is formed between the second normal line and the first normal line, a second angle is formed between the third normal line and the first normal line, and both the first angle and the second angle are less than 90 degrees.

Claims

1. A back light source module, comprising:

a backplate;

a light source fixture disposed on said backplate;

a first light sources having a first normal line, disposed on said light source fixture;

a second light sources having a second normal line, disposed on said light source fixture; and

a third light sources having a third normal line, disposed on said light source fixture;

wherein, a first angle is formed between said second normal line and said first normal line, a second angle is formed between said third normal line and said first normal line, and both said first angle and said second angle are less than 90 degrees.

2. The back light source module as claimed in claim 1, wherein said first normal line, said second normal line, and said third normal line are coplanar, or said first normal line, said second normal line, and said third normal line can be projected into a same plane.

3. The back light source module as claimed in claim 1, wherein said first angle is between 30 to 45 degrees.

4. The back light source module as claimed in claim 1, wherein said second angle is between 30 to 45 degrees.

5. The back light source module as claimed in claim 1, wherein said first light source, said second light source, and said third light source are selected from the group consisting of a red light emitting diode, a green light emitting diode, a blue light emitting diode, and a white light emitting diode.

6. The back light source module as claimed in claim 1 further comprising a diffusing plate disposed in corresponding with said backplate.

7. The back light source module as claimed in claim 1 further comprising a light guide plate disposed in corresponding with said backplate.

8. The back light source module as claimed in claim 1 further comprising a reflecting member disposed between said backplate and said light source fixture.

9. The back light source module as claimed in claim 1, wherein said first light sources, said second light source, and said third light source are disposed in parallel and in array.

10. The back light source module as claimed in claim 1, wherein said first light sources, said second light source, and said third light source are staggeringly disposed.

11. A liquid crystal device, comprising:

a liquid crystal display panel; and

a back light source module disposed in corresponding with said liquid crystal display panel, further comprising;

a backplate;

a light source fixture disposed on said backplate;

a first light source having a first normal line, disposed on said light source fixture;

a second light source having a second normal line, disposed on said light source fixture; and

a third light source having a third normal line, disposed on said light source fixture;

wherein, a first angle is formed between said second normal line and said first normal line, a second angle is formed between said third normal line and said first normal line, and both said first angle and said second angle are less than 90 degrees.

12. The liquid crystal device as claimed in claim 11, wherein said first normal line, said second normal line, and said third normal line are coplanar, or said first normal line, said second normal line, and said third normal line can be projected into a same plane.

13. The liquid crystal device as claimed in claim 11, wherein said first angle is between 30 to 45 degrees.

14. The liquid crystal device as claimed in claim 11, wherein said second angle is between 30 to 45 degrees.

15. The liquid crystal device as claimed in claim 11, wherein said first light sources, said second light source, and said third light source are selected from the group consisting of a red light emitting diode, a green light emitting diode, a blue light emitting diode, and a white light emitting diode.

16. The liquid crystal device as claimed in claim 11, wherein said first light sources, said second light source, and said third light source are disposed in parallel and in array.

17. The liquid crystal device as claimed in claim 11, wherein said first light sources, said second light source, and said third light source are staggeringly disposed.

18. The liquid crystal device as claimed in claim 11 further comprising a diffusing plate disposed between said liquid crystal display panel and said backplate.

19. The liquid crystal device as claimed in claim 11 further comprising a light guide plate disposed between said liquid crystal display panel and said backplate.

20. The liquid crystal device as claimed in claim 11 further comprising a reflecting member disposed between said light source fixture and said backplate.