Light source

• US 7,467,877 B2
• Filed: 09/15/2006
• Issued: 12/23/2008
• Est. Priority Date: 06/16/2006
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Chou, Shen-Hong, Lin, Yu-Kai, Peng, Chung, Chen, Chih-Kuang, Tseng, Shin-Chin
• Primary Examiner(s): Alavi; Ali
• Application Number:
  US11/532,110
• Publication Number:
  US 20070291485A1
• Time in Patent Office: 830 Days
• Field of Search: 362/231, 362/97, 362/249, 362/252
• US Class Current: 362/249.16
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21Y 2105/12 characterised by the geometrical disposition of the light-generating elements, e.g. arranging light-generating elements in differing patterns or densities
• CPC Class Codes: G02F 1/133603 with LEDs
• CPC Class Codes: G02F 1/133613 characterized by the sequence of light sources

Abstract

A light source for a backlight unit is disclosed. The light source includes a plurality of light emitting diode modules arranged in a manner corresponding to an array, in which each of the light emitting diode modules includes a plurality of light emitting diodes. The array includes a plurality of columns and rows. Preferably, the light emitting diodes of the light emitting diode module of any two adjacent columns are arranged in a different manner, and the light emitting diodes of the light emitting diode module of any two adjacent rows are arranged in a different manner.

Claims

1. A light source, for a backlight unit, the light source comprising:

a plurality of light emitting diode modules arranged in a manner corresponding to an array, wherein each light emitting diode module comprises a plurality of light emitting diodes, the array comprises a plurality of columns and rows, and the light emitting diodes of the light emitting diode module of any two adjacent columns are arranged in a different manner, and the light emitting diodes of the light emitting diode module of any two adjacent rows are arranged in a different manner.

2. The light source of claim 1, wherein the light emitting diodes are selected from the group consisting of red light emitting diodes, blue light emitting diodes, green light emitting diodes, magenta light emitting diodes, orange light emitting diodes, yellow light emitting diodes, and cyan light emitting diodes.

3. The light source of claim 1, wherein the light emitting diodes of each light emitting diode module are arranged in a manner of a straight line.

4. The light source of claim 3, wherein the light emitting diode modules of each column comprise a rotation, wherein any two of the light emitting diode modules comprises an included angle therein between.

5. The light source of claim 4, wherein the included angle comprises a right angle, an acute angle, or an obtuse angle.

6. The light source of claim 5, wherein the acute angle comprises a range between 15 degrees to 75 degrees.

7. The light source of claim 5, wherein the acute angle comprises a range between 30 degrees to 60 degrees.

8. The light source of claim 5, wherein the acute angle is 45 degrees.

9. The light source of claim 5, wherein the obtuse angle comprises a range between 105 degrees to 165 degrees.

10. The light source of claim 5, wherein the obtuse angle comprises a range between 120 degrees to 150 degrees.

11. The light source of claim 5, wherein the obtuse angle is 135 degrees.

12. The light source of claim 4, wherein the rotation of the light emitting diode modules of each column comprises a clockwise rotation or a counterclockwise rotation.

13. The light source of claim 3, wherein the light emitting diode modules of each row comprise a rotation, wherein any two of the light emitting diode modules comprises an included angle therein between.

14. The light source of claim 13, wherein the included angle comprises a right angle, an acute angle, or an obtuse angle.

15. The light source of claim 14, wherein the acute angle comprises a range between 15 degrees to 75 degrees.

16. The light source of claim 14, wherein the acute angle comprises a range between 30 degrees to 60 degrees.

17. The light source of claim 14, wherein the acute angle is 45 degrees.

18. The light source of claim 14, wherein the obtuse angle comprises a range between 105 degrees to 165 degrees.

19. The light source of claim 14, wherein the obtuse angle comprises a range between 120 degrees to 150 degrees.

20. The light source of claim 14, wherein the obtuse angle is 135 degrees.

21. The light source of claim 13, wherein the rotation of the light emitting diode modules of each column comprises a clockwise rotation or a counterclockwise rotation.

22. The light source of claim 1, wherein the light emitting diode modules of each column and the light emitting diode modules of each row are arranged corresponding to an alternating manner.

23. The light source of claim 22, wherein any three of the adjacent light emitting diode modules are arranged corresponding to a triangle.

24. A light source, for a backlight unit, the light source comprising:

a plurality of light emitting diode modules arranged in a manner corresponding to an array, wherein each light emitting diode module comprises a plurality of light emitting diodes arranged in a manner of a straight line and in a same order, the array comprises a plurality of columns and rows, and the light emitting diodes of the light emitting diode module of any two adjacent columns are arranged in a different manner, and the light emitting diodes of the light emitting diode module of any two adjacent rows are arranged in a different manner.

25. The light source of claim 24, wherein the light emitting diodes are selected from the group consisting of red light emitting diodes, blue light emitting diodes, green light emitting diodes, magenta light emitting diodes, orange light emitting diodes, yellow light emitting diodes, and cyan light emitting diodes.

26. The light source of claim 24, wherein the light emitting diode modules of each column comprise a rotation, wherein any two of the light emitting diode modules comprises an included angle therein between.

27. The light source of claim 26, wherein the included angle comprises a right angle, an acute angle, or an obtuse angle.

28. The light source of claim 27, wherein the acute angle comprises a range between 15 degrees to 75 degrees.

29. The light source of claim 27, wherein the acute angle comprises a range between 30 degrees to 60 degrees.

30. The light source of claim 27, wherein the acute angle is 45 degrees.

31. The light source of claim 27, wherein the obtuse angle comprises a range between 105 degrees to 165 degrees.

32. The light source of claim 27, wherein the obtuse angle comprises a range between 120 degrees to 150 degrees.

33. The light source of claim 27, wherein the obtuse angle is 135 degrees.

34. The light source of claim 26, wherein the rotation of the light emitting diode modules of each column comprises a clockwise rotation or a counterclockwise rotation.

35. The light source of claim 24, wherein the light emitting diode modules of each row comprise a rotation, wherein any two of the light emitting diode modules comprises an included angle therein between.

36. The light source of claim 35, wherein the included angle comprises a right angle, an acute angle, or an obtuse angle.

37. The light source of claim 35, wherein the acute angle comprises a range between 15 degrees to 75 degrees.

38. The light source of claim 35, wherein the acute angle comprises a range between 30 degrees to 60 degrees.

39. The light source of claim 35, wherein the acute angle is 45 degrees.

40. The light source of claim 35, wherein the obtuse angle comprises a range between 105 degrees to 165 degrees.

41. The light source of claim 35, wherein the obtuse angle comprises a range between 120 degrees to 150 degrees.

42. The light source of claim 35, wherein the obtuse angle is 135 degrees.

43. The light source of claim 35, wherein the rotation of the light emitting diode modules of each column comprises a clockwise rotation or a counterclockwise rotation.

44. The light source of claim 24, wherein the light emitting diode modules of each column and the light emitting diode modules of each row are arranged corresponding to an alternating manner.

45. The light source of claim 44, wherein any three of the adjacent light emitting diode modules are arranged corresponding to a triangle.

46. The light source of claim 45, wherein the adjacent light emitting diode modules comprise at least one light emitting diode module having light emitting diodes arranged in a direction different from the light emitting diodes of the other two light emitting diode modules.