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:
Jun. 14, 2010
Byoung-jun Lee, Cheonan-si, KR;
Min-koo Han, Seoul, KR;
Hyun-sang Park, Seongnam-si, KR;
Bong-hyun You, Yongin-si, KR;
Byoung-Jun Lee, Cheonan-si, KR;
Min-Koo Han, Seoul, KR;
Hyun-Sang Park, Seongnam-si, KR;
Bong-Hyun You, Yongin-si, KR;
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Seoul National University R&DB Foundation, Seoul, KR;
Abstract
A liquid crystal display panel includes a touch sensor and the touch sensor includes a plurality of x-axis read-out lines, a plurality of y-axis read-out lines crossing the x-axis read-out lines, a plurality of sensor units provided in a plurality of regions defined by the x-axis read-out lines and the y-axis read-out lines. Each sensor unit comprises a reset unit that outputs a sampling voltage based on a reset voltage, a capacitance detector that generates a modified sampling voltage from the sampling voltage based on a variation of a cell gap of the display panel caused by a touch of the display panel, a first output unit that changes an electric potential of a corresponding x-axis read-out line in response to the modified sampling voltage and a second output unit that changes an electric potential of a corresponding y-axis read-out line in response to the modified sampling voltage.