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:
Nov. 05, 2013
Filed:
Oct. 21, 2010
Robert A. Sprague, Saratoga, CA (US);
Craig Lin, San Jose, CA (US);
Tin Pham, San Jose, CA (US);
Ping-yueh Cheng, Taoyuan, TW;
Robert A. Sprague, Saratoga, CA (US);
Craig Lin, San Jose, CA (US);
Tin Pham, San Jose, CA (US);
Ping-Yueh Cheng, Taoyuan, TW;
Sipix Imaging, Inc., Fremont, CA (US);
Abstract
The present invention is directed to a driving method for compensating the response speed change of an electrophoretic display due to temperature variation, photo-degradation or aging of the display device, without a complex structure (e.g., use of sensors). This is accomplished by combining two waveforms, one of which causes the grey level to become dimmer and the other waveform causes the grey level to become brighter, as the response speed degrades.