Di Feng

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Light guide device and a backlight module using the same
- Patent number 7,374,329
- Issue date May 20, 2008
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Grant
Light guide plate and surface light source using same
- Patent number 7,370,999
- Issue date May 13, 2008
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Grant
Light guide device and a backlight module using the same
- Patent number 7,334,934
- Issue date Feb 26, 2008
- University of Tsinghua
- Di Feng
- G02 - OPTICS
Information Patent Grant
Light guide device and backlight module using the same
- Patent number 7,206,491
- Issue date Apr 17, 2007
- Tsinghua University
- Di Feng
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Light guide plate and a backlight system
- Publication number 20070041701
- Publication date Feb 22, 2007
- Tsinghua University
- Xing-Peng Yang
- G02 - OPTICS
Information Patent Application
Light guide device and a backlight module using the same
- Publication number 20060104093
- Publication date May 18, 2006
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Application
Light guide plate and a backlight module using the same
- Publication number 20060104089
- Publication date May 18, 2006
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Application
Light guide device and a backlight module using the same
- Publication number 20060104092
- Publication date May 18, 2006
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Application
Light guide plate and surface light source using same
- Publication number 20060082884
- Publication date Apr 20, 2006
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Application
Light guide plate and backlight module employing the same
- Publication number 20060044832
- Publication date Mar 2, 2006
- Tsinghua University
- Di Feng
- G02 - OPTICS
Information Patent Application
Light guide device and backlight module using the same
- Publication number 20060039670
- Publication date Feb 23, 2006
- Tsinghua University
- Di Feng
- G02 - OPTICS