Feng Chang

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Jilin, CN

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Patents Grantslast 30 patents

Information Patent Grant
Display drive with permutation and superposition gray-level control
- Patent number 9,019,322
- Issue date Apr 28, 2015
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of...
- Tiefu Ding
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
DISPLAY DRIVE WITH PERMUTATION AND SUPERPOSITION GRAY-LEVEL CONTROL
- Publication number 20120287178
- Publication date Nov 15, 2012
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of...
- Tiefu Ding
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS