Abstract: A driving circuit outputs driving waveforms to operation signal lines. The waveforms are formed by combining a first-mode waveform for charging a node capacitor with a positive voltage and a second-mode waveform for charging the node capacitor with a negative voltage in a predetermined binary sequence. A sensing circuit is electrically connected with a plurality of sense signal lines and measures sense voltages delivered to one integration capacitor from a plurality of node capacitors which are electrically connected with the sense signal lines. A sense detector adds or subtracts the sense voltages which are measured by the sensing circuit at driving time points to measure capacitances of the node capacitors. Accordingly, an autocorrelation technique which is generally used in communication systems is applied to driving a touch screen device.
Abstract: A capacitive type touch screen device according to an exemplary embodiment of the present invention includes a plurality of driving electrodes and a plurality of sensing electrodes overlapped with the plurality of driving electrodes, at least one driving electrode includes a plurality of cells and a plurality of connecting lines, and the plurality of cells are mutually connected through the plurality of connecting lines.
Type:
Grant
Filed:
October 14, 2013
Date of Patent:
March 15, 2016
Assignee:
ZINITIX
Inventors:
Il Hyun Yun, Hyung Cheol Shin, Kyoung Kyoo Kim
Abstract: A driving circuit outputs driving waveforms to operation signal lines. The waveforms are formed by combining a first-mode waveform for charging a node capacitor with a positive voltage and a second-mode waveform for charging the node capacitor with a negative voltage in a predetermined binary sequence. A sensing circuit is electrically connected with a plurality of sense signal lines and measures sense voltages delivered to one integration capacitor from a plurality of node capacitors which are electrically connected with the sense signal lines. A sense detector adds or subtracts the sense voltages which are measured by the sensing circuit at driving time points to measure capacitances of the node capacitors. Accordingly, an autocorrelation technique which is generally used in communication systems is applied to driving a touch screen device.
Abstract: A capacitive type touch screen device according to an exemplary embodiment of the present invention includes a plurality of driving electrodes and a plurality of sensing electrodes overlapped with the plurality of driving electrodes, at least one driving electrode includes a plurality of cells and a plurality of connecting lines, and the plurality of cells are mutually connected through the plurality of connecting lines.
Type:
Application
Filed:
October 14, 2013
Publication date:
February 13, 2014
Applicant:
ZINITIX
Inventors:
Il Hyun YUN, Hyung Cheol SHIN, Kyoung Kyoo KIM
Abstract: A driving circuit outputs driving waveforms to operation signal lines. The waveforms are formed by combining a first-mode waveform for charging a node capacitor with a positive voltage and a second-mode waveform for charging the node capacitor with a negative voltage in a predetermined binary sequence. A sensing circuit is electrically connected with a plurality of sense signal lines and measures sense voltages delivered to one integration capacitor from a plurality of node capacitors which are electrically connected with the sense signal lines. A sense detector adds or subtracts the sense voltages which are measured by the sensing circuit at driving time points to measure capacitances of the node capacitors. Accordingly, an autocorrelation technique which is generally used in communication systems is applied to driving a touch screen device.