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. 10, 2015
Filed:
Jan. 18, 2012
Applicants:
Chin-wen Lin, Hsinchu, TW;
Kai-cheng Chuang, Hsinchu, TW;
Ted Hong Shinn, Hsinchu, TW;
Inventors:
Assignee:
E INK HOLDINGS INC., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/042 (2006.01); G06F 3/038 (2013.01); G02F 1/167 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0421 (2013.01); G06F 3/0383 (2013.01); G02F 1/167 (2013.01);
Abstract
A touch type electrophoretic display apparatus, including: at least one photo-controlled voltage source, used for generating at least one reference voltage, wherein the level of the at least one reference voltage gets lower/higher as the intensity of environmental light increases/decreases; and a plurality of photo sensing circuits, each of which including: a photo transistor, generating a channel current according to an incident light; a light intensity storing capacitor, used for integrating the channel current to generate a photo sensing voltage; and an output switch, used for providing an output signal.