发明名称 |
Direct backlight module using optical feedback |
摘要 |
A direct-light-type backlight module uses optical feedback to control point light sources for obtaining a default luminance. Each point light source drives a section in a cyclic time domain to emit a light. A photo detector detects a brightness and the brightness is thus controlled by the optical feedback from the photo detector.
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申请公布号 |
US7619192(B2) |
申请公布日期 |
2009.11.17 |
申请号 |
US20070892410 |
申请日期 |
2007.08.22 |
申请人 |
NATIONAL CENTRAL UNIVERSITY |
发明人 |
SUN CHING-CHERNG;YANG TSUNG-HSUN;HSIEH CHIH-TO |
分类号 |
G01J1/32 |
主分类号 |
G01J1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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