The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 2010
Filed:
May. 10, 2002
Applicants:
Wing Chiu Yip, Chai Wan, HK;
Hoi Sing Kwok, Kowloon, HK;
Cheryl Sun, New Territories, HK;
Inventors:
Assignees:
The Hong Kong University of Science and Technology, Hong Kong, HK;
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a method for controlling the grey-scale modulation of a reflective bistable cholesteric display by applying selected sequences of high and low pulses to modulate the cholesteric domain size and helical axis orientation. Non-mesogenic dopants may also be added to reduce the drive voltage.
Quick Actions:
Yip, Wing. (2010). Method, materials and apparatus for driving gray-scale bistable cholesteric displays (U.S. Patent No. 7696971). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7696971
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile