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:
Aug. 28, 2012
Filed:
Feb. 12, 2008
Sun-kyu Son, Suwon-si, KR;
Sun-Kyu Son, Suwon-si, KR;
Abstract
In a display apparatus, a display panel includes touch sensors that make contact with a common electrode by an external pressure to output a common voltage, and a sensing driver receives the common voltage from the touch sensors to generate a sensing signal. A controller receives the sensing signal from the sensing driver and calculates position information to which the external pressure is applied based on the sensing signal. The sensing driver includes a switching circuit that receives a switching signal from the controller to switch the common voltage. Thus, the display apparatus prevents the common voltage from being input during a period where a voltage level of the common voltage is abnormally high, thereby preventing a logic circuit of the sensing driver from being damaged.