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:
Jan. 06, 2015
Filed:
Dec. 02, 2009
Wen-pin Chiu, Taoyuan County, TW;
Ping-yueh Cheng, Taoyuan County, TW;
Feng-shou Lin, Taoyuan County, TW;
Craig Lin, San Jose, CA (US);
Bryan Chan, San Francisco, CA (US);
Wen-Pin Chiu, Taoyuan County, TW;
Ping-Yueh Cheng, Taoyuan County, TW;
Feng-Shou Lin, Taoyuan County, TW;
Craig Lin, San Jose, CA (US);
Bryan Chan, San Francisco, CA (US);
SIPIX Technology Inc., Jhongli, Taoyuan County, TW;
Abstract
A multiplex electrophoretic display driver circuit comprises a memory unit, a display controller and a voltage driving unit. The memory unit has two registers respectively storing the current and former gray-level matrix signals. The gray-level matrix signal contains gray-level data corresponding to electrophoretic pixels. The display controller has an encoding circuit and a counting circuit. The encoding circuit generates a difference-value matrix signal containing difference values according to a difference between the current and former gray-level matrix signals and then generates a voltage-difference matrix signal containing voltage-difference signals corresponding to the electrophoretic pixels. The counting circuit receives the difference-value matrix signal and counts to generate refreshing values corresponding to the difference values. The encoding circuit adds the refreshing values to a next-cycled difference-value matrix signal to generate a new voltage-difference matrix signal. The voltage driving unit drives the electrophoretic pixels according to the voltage-difference matrix signal.