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. 23, 2013
Filed:
Dec. 03, 2008
Hyun-sang Park, Seongnam-si, KR;
Min-koo Han, Seoul, KR;
Jae-hoon Lee, Seoul, KR;
Bong-hyun You, Yongin-si, KR;
Byoung-jun Lee, Cheonan-si, KR;
Hyun-Sang Park, Seongnam-si, KR;
Min-Koo Han, Seoul, KR;
Jae-Hoon Lee, Seoul, KR;
Bong-Hyun You, Yongin-si, KR;
Byoung-Jun Lee, Cheonan-si, KR;
Samsung Display Co. Ltd., Gwanak-Gu, Seoul, KR;
Abstract
A touch sensor configured to be disposed in a liquid crystal display panel includes a plurality of x-axis read-out lines crossing and insulated from a plurality of y-axis read-out lines and a plurality of sensor units. Each sensor unit includes a reset unit, a capacitance detector, a first output unit, and a second output unit. The reset unit outputs a first reset signal based on a first control signal. The capacitance detector changes the first reset signal based on a variation of a cell gap of the liquid crystal display panel caused by a touch event. The first output unit changes an electric potential of a corresponding x-axis read-out line in response to the first reset signal changed in the capacitance detector. The second output unit changes an electric potential of a corresponding y-axis read-out line in response to the first reset signal changed in the capacitance detector.