Light source array, backlight module and liquid crystal display using same

Abstract

An exemplary light source array (230) includes at least one light source bar (33), each light source bar comprising a plurality of light source unit (35), each light source unit (35) has a first color LED (351), two second color LEDs (353) and two third color LEDs (355). The two second color LEDs and two third color LEDs are respectively disposed at two sides of the first color LED, and two adjacent LEDs in each light source bar have two different colors.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is schematic view of a liquid crystal display (LCD) according to a first embodiment of the present invention, which has a backlight module.

FIG. 2 is a plane view of the backlight module of FIG. 1.

FIG. 3 is a plane view of a backlight module of an LCD according to a second embodiment of the present invention, which the backlight module has a light source bar.

FIG. 4 is a plane view of the light source bar of the backlight module of FIG. 3.

FIG. 5 is a plane view of a backlight module of an LCD according to a third embodiment of the present invention.

FIG. 6 is a plane view of a backlight module of an LCD according to a fourth embodiment of the present invention.

FIG. 7 is a plane view of a backlight module of an LCD according to a fifth embodiment of the present invention.

FIG. 8 is a plane view of a conventional backlight module and

FIG. 9 shows a light source bar of the backlight module of FIG. 8.

Claims

1. A light source array, comprising: at least one light source bar, each light source bar comprising a plurality of light source unit, each light source unit comprising a first color LED, two second color LEDs and two third color LEDs;wherein the two second color LEDs and two third color LEDs are respectively disposed at two sides of the first color LED, and two adjacent LEDs in each light source bar have two different colors.

2. The light source array as claimed in claim 1, wherein the first color LED is a blue LED.

3. The light source array as claimed in claim 2, wherein the second color LED is a red LED.

4. The light source array as claimed in claim 3, wherein the third color LED is a green LED.

5. The light source array as claimed in claim 1, wherein the light source array has a plurality of light source bar, two adjacent LEDs in each row have two different colors.

6. The light source array as claimed in claim 5, wherein LEDs in one row of the light source bar are respectively disposed a center region of two corresponding LEDs of the other two adjacent light source bars.

7. The light source array as claimed in claim 1, wherein each light source bar has at least one first light source units and at least one second light source units.

8. The light source array as claimed in claim 7, wherein the two third color LEDs are respectively disposed at two opposite sides of the first color LED, in the first light source unit.

9. The light source array as claimed in claim 8, wherein the two second color LEDs are respectively disposed at two opposite sides of the first color LED, in the first light source unit.

10. The light source array as claimed in claim 1, wherein one second color LED and one third color LED are respectively disposed at two opposite sides of the first color LED.

11. A backlight module, comprising: a light guiding element, anda light source array for providing luminance to the light guiding element, which comprises at least one light source bar, each light source bar comprising a plurality of light source unit, each light source unit comprising a first color LED, two second color LEDs and two third color LEDs;wherein the two second color LEDs and two third color LEDs are respectively disposed at two sides of the first color LED, and two adjacent LEDs in each light source bar have two different colors.

12. The backlight module as claimed in claim 11, wherein the first color LED is a blue LED.

13. The backlight module as claimed in claim 12, wherein the second color LED is a red LED.

14. The backlight module as claimed in claim 13, wherein the third color LED is a green LED.

15. The backlight module as claimed in claim 11, wherein the light source array has a plurality of light source bar, two adjacent LEDs in each row have two different colors.

16. The backlight module as claimed in claim 15, wherein LEDs in one row of the light source bar are respectively disposed a center region of two corresponding LEDs of the other two adjacent light source bars.

17. The backlight module as claimed in claim 11, wherein each light source bar has at least one first light source units and at least one second light source units.

18. The backlight module as claimed in claim 17, wherein the two third color LEDs are respectively disposed at two opposite sides of the first color LED, in the first light source unit.

19. The backlight module as claimed in claim 18, wherein the two second color LEDs are respectively disposed at two opposite sides of the first color LED, in the first light source unit.

20. A liquid crystal display, comprising: a liquid crystal panel; anda backlight module, comprising:a light guiding element, anda light source array for providing luminance to the light guiding element, which comprises at least one light source bar, each light source bar comprising a plurality of light source unit, each light source unit comprising a first color LED, two second color LEDs and two third color LEDs;wherein the two second color LEDs and two third color LEDs are respectively disposed at two sides of the first color LED, and two adjacent LEDs in each light source bar have two different colors.