Backlight module without light guiding plate and diffusing plate
A backlight module without a light guiding plate and a diffusing plate is disclosed, in which a reflective layer having a light scattering structure is first disposed on a backplate and then at least a reflective mirror is provided on the reflective layer of the backplate. Further, a transparent plate is disposed on the at least reflective mirror. The backplate, the at least a reflective mirror, the reflective layer and the transparent plate form an enclosed space and thus the backlight module without a light guiding plate and a diffusing plate is completed. In another form of the backlight module without a light guiding plate and a diffusing plate, the light scattered structure is formed directly on the backplate. When a light-emitting unit emits a light source, the light source is uniformly given off through the light scattering structure, promoting use efficiency of the light source.
1. A backlight module without a light guiding plate and a diffusing plate comprising:
a backplate;
a reflective layer having a light scattering structure;
at least a reflective mirror disposed on a side of said reflective layer;
at least a light-emitting unit disposed on said backplate; and
a transparent plate disposed over said reflective mirror to form an enclosed space.
2. The backlight module according to claim 1 , wherein said light scattering structure on said reflective layer is in a corrugated shape, a ridge-like shape, a mountain shape or a saw-like shape.
3. The backlight module according to claim 1 , wherein said reflective mirror is in an arc-like shape.
4. The backlight module according to claim 1 , wherein said transparent plate is made of a transparent material.
5. The backlight module according to claim 1 , wherein said reflective mirror is coated with a highly reflective material.
6. The backlight module according to claim 1 , wherein said light-emitting unit is light-emitting diodes (LEDs).
7. The backlight module according to claim 5 , wherein said highly reflective material is a resin material containing a light stabilizer and a reflective agent.
8. The backlight module according to claim 6 , wherein said LEDs are red, green, blue or white LEDs.
9. The backlight module according to claim 1 , wherein said reflective layer is a bottom reflector or a reflective film.
10. The backlight module according to claim 1 , wherein said reflective mirror is further plated with a highly reflective material.
11. The backlight module according to claim 10 , wherein said highly reflective material is selected from the group of aluminum, tin, and zinc.
12. The backlight module without a light guiding plate and a diffusing plate, comprising:
a backplate having a light scattering structure on a side thereof
at least a reflective mirror disposed on a side of said backplate;
at least a light-emitting unit disposed on said backplate; and
a transparent plate disposed over said reflective mirror to form an enclosed space.
13. The backlight module according to claim 12 , wherein said light scattering structure on said backplate is in a corrugated shape, a ridge-like shape, a mountain shape or a saw-like shape.
14. The backlight module according to claim 12 , wherein said reflective mirror is in an arc-like shape.
15. The backlight module according to claim 12 , wherein said transparent plate is made of a transparent material.
16. The backlight module according to claim 12 , wherein said reflective mirror is coated with a highly reflective material.
17. The backlight module according to claim 12 , wherein said light-emitting unit is light-emitting diodes (LEDs).
18. The backlight module according to claim 16 , wherein said highly reflective material is a resin material containing a light stabilizer and a reflective agent.
19. The backlight module according to claim 17 , wherein said LEDs are red, greens blue or white LEDs.
20. The backlight module according to claim 12 , wherein said reflective mirror is further plated with a highly reflective material.
21. The backlight module according to claim 20 , wherein said highly reflective material is selected from the group of aluminum, tin, and zinc.