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, 2018
Filed:
Jun. 01, 2016
Raydium Semiconductor Corporation, Hsinchu, TW;
Raydium Semiconductor Corporation, Hsinchu, TW;
Abstract
A self-capacitive touch display panel includes a resistor, a first capacitor, a second capacitor, a third capacitor, a common electrode, a display driving source, and a touch sensing circuit. The first capacitor is coupled between a first terminal of the resistor and a ground terminal. The second capacitor and the third capacitor are coupled in series between the first terminal of the resistor and the ground terminal. The common electrode is coupled to a second terminal of the resistor. The display driving source is coupled between the second capacitor and the third capacitor. The touch sensing circuit is coupled to the common electrode and used to sense a touch capacitance via the common electrode when touch sensing. A first driving voltage of the display driving source is larger than a second driving voltage of the common electrode, so that the touch capacitance sensed by the touch sensing circuit is smaller than the capacitance of the first capacitor.