Light module and flat panel display including the light module
View Patent ↗A light module and a flat panel display including the light module. The light module includes a printed circuit board having a first surface and a second surface; a first light source disposed on the first surface of the printed circuit board; a second light source disposed on the second surface of the printed circuit board; and a light guiding plate disposed adjacent to the printed circuit board, for guiding light emitted from the first and/or the second light sources to a first surface of the light guiding plate.
1. A light module, comprising:
a printed circuit board having a first surface and a second surface;
a first light source disposed on the first surface of the printed circuit board;
a second light source disposed on the second surface of the printed circuit board; and
a light guiding plate disposed adjacent to an edge side of the printed circuit board, wherein a light generated from the first and/or second light sources travels sideward into the light guiding plate and is guided to a first surface to the light guiding plate.
2. The light module as claimed in claim 1 , wherein the first and the second light sources are back lights.
3. The light module as claimed in claim 1 , further comprising a reflector sheet disposed on a second surface of the light guiding plate, for reflecting light emitted from the first and/or the second light sources to the first surface of the light guiding plate.
4. The light module as claimed in claim 1 , wherein the printed circuit board is of linear shape and disposed on one side of the light guiding plate.
5. The light module as claimed in claim 1 , wherein the printed circuit board is L-shaped and disposed on two sides of the light guiding plate.
6. The light module as claimed in claim 1 , wherein the printed circuit board is U-shaped and disposed on three sides of the light guiding plate.
7. The light module as claimed in claim 1 , wherein the printed circuit board is of square or rectangular shape and surrounds the light guiding plate.
8. The light module as claimed in claim 1 , wherein the first and the second light sources have a plurality of light emitters.
9. The light module as claimed in claim 8 , wherein the first and the second light sources are correspondingly aligned.
10. The light module as claimed in claim 8 , wherein the first and the second light sources are alternatively aligned.
11. The light module as claimed in claim 1 , wherein the first and the second light sources are light emitting diodes (LEDs).
12. The light module as claimed in claim 1 , further comprising an optical sheet disposed on the first surface of the light guiding plate.
13. The light module as claimed in claim 12 , wherein the optical sheet is a diffuser sheet, a prism sheet, or a combination thereof.
14. A flat panel display, comprising:
a printed circuit board having a second surface;
a first light source disposed on the first surface of the printed circuit board;
a second light source disposed on the second surface of the printed circuit board;
a light guiding plate disposed adjacent to an edge side of the printed circuit board, wherein a light generated from the first and/or second light sources travels sideward into the light guiding plate and is guided to a first surface of the light guiding plate; and
a display panel disposed on the first surface of the light guiding plate.
15. The flat panel display as claimed in claim 14 , wherein the first and the second light sources are back lights.
16. The flat panel display as claimed in claim 14 , wherein the display panel is a liquid crystal display panel.
17. The flat panel display as claimed in claim 14 , wherein the flat panel display includes one display panel and one light guiding plate to constitute a single-face flat panel display.
18. A dual-face flat panel display, comprising:
a printed circuit board having a first surface and a second surface;
a first light source disposed on the first surface of the printed circuit board;
a second light source disposed on the second surface of the printed circuit board;
a first light guiding plate disposed adjacent to an edge side of the first source on the printed circuit board, wherein a first light generated from the first light source travels sideward into the first light guiding plate and is guided to a first surface of the first light guiding plate;
a first display panel disposed on the first surface of the first light guiding plate;
a second light guiding plate dipsosed adjacent to an edge side of the second light source on the printed circuit board, wherein a second light generated from the second light source travels sideward into the second light guiding plate and is guided to a first surface of the second light guiding plate; and
a second display panel disposed on the first surface of the second light guiding plate.
19. The dual-face flat panel display as claimed in claim 18 , further comprising a first reflector sheet disposed between the first and second light guiding plates.
20. The dual-face flat panel display as claimed in claim 19 , further comprising a second reflector sheet disposed adjacent to an edge side of the first light guiding plate and on an opposite side of the first light source.
21. The dual-face flat panel display as claimed in claims 20 , further comprising a third reflector sheet disposed adjacent to an edge side of the second light guiding plate and on an opposite side of the second light source.
22. The dual-face flat panel display as claimed in claim 18 , wherein the first and the second light sources are light emitting diodes (LEDs).