Plate for guiding light and backlight module |
Title: |
Plate for guiding light and backlight module |
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Application Number: |
200410091952 |
Application Date: |
2004/12/28 |
Announcement Date: |
2006/07/05 |
Pub. Date: |
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Publication Number: |
1797106 |
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 1/1335, G02B 5/02 |
Applicant(s): |
Tsinghua Univ. |
Inventor(s): |
Feng Di, Yan Yingbai, Jin Guofan, Fan Shoushan |
Key Words: |
Plate for guiding light, backlight module |
Abstract: |
The invention relates to a light guide plate and a backlight module applied in the LCD field. The light guide plate has a cutting angle and comprises: an incident surface, namely a side of the cutting angle; an outgoing surface, namely its top surface adjacent to the incident surface; and a reflecting surface opposite to the outgoing surface and formed with several outward-projecting, convex arc-distributed, V-shaped microstructures which have the same center and face the incident surface and whose sections have the same shape, where the further they are from the incident surface, the higher their arrangement density is and the larger their sizes are. When combined with light sources, the light guide plate can realize the function of a traditional backlight module and has high brightness and good luminance uniformity. The invention also provides a backlight module using the light guide plate. |
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