Backlight source system made based on hologram technique |
Title： |
| Backlight source system made based on hologram technique |
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Application Number： |
200710119540 |
Application Date： |
2007/07/26 |
Announcement Date： |
2008/02/06 |
Pub. Date： |
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Publication Number： |
101118344 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
G02F 1/13357G02B 5/32G02B 6/00 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Tan Qiaofeng, Niu Ke, Zhu Jun, Jin Guofan |
Key Words： |
Backlight source, hologram technique |
Abstract： |
A backlight source system based on the holographic technology belongs to the field of the optical liquid crystal display technology. In order to solve the problem of the illumination uniformity of the backlight system, the present invention discloses a backlight source system based on the holographic technology, the system is combined and connected seamlessly into a whole by a plurality of backlight lighting units, and each backlight lighting unit includes a light source, a light guide plate, a reflective film, a holographic film and a brightness enhancement film; the light guide plate is a wedge-shaped plate; light source is sealed and arranged on the side of the light guide plate; the reflective film is attached to the lower surface of the light guide plate; the holographic film which is a polymerization film including the hologram is attached to the upper surface of the light guiding plate; the brightness enhancement film is attached to the holographic film. The present invention is simple in structure, significant in operation, and can solve the beam quality of the backlight source system, further improve the uniformity of the light-out surface of the backlight source system, thereby ensuring that the backlight source system can light the LCD with a uniform lighting. |
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