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:
Oct. 23, 2018
Filed:
Sep. 17, 2015
Focaltech Systems Co., Ltd., Hsinchu, TW;
Chien-Ying Huang, Hsinchu, TW;
FOCALTECH SYSTEMS CO., LTD., Hsinchu, TW;
Abstract
A touch driving system with low display noise comprises a TFT layer having a plurality of display elements for display based on a display driving signal and a display pixel signal; and a touch detection device for detecting if an external object has approached based on a touch driving signal. In a first time period of a display frame, a touch and display control subsystem provides the display driving signal, the display pixel signal, and the touch driving signal to display and perform touch detection simultaneously. In the first time period, the display pixel signal is a constant signal. In a second time period of the display frame, the touch and display control subsystem only provides the display driving signal and the display pixel signal to display.