CAPACITIVE TOUCH PANEL SENSOR AND TOUCH PANEL DISPLAY DEVICE HAVING THE SAME
First Claim
1. A capacitive touch panel sensor, comprising:
- a plurality of driving-lines in a first direction;
a plurality of sensing-lines in a second direction;
a scan signal generator configured to generate a scan signal corresponding to at least one scan pulse, and to output the scan signal to the driving-lines; and
a capacitance detector configured to receive a capacitance sensing signal output from the sensing-lines, and to detect a touched location based on the capacitance sensing signal,wherein the scan signal generator is configured to output the scan signal during first noise avoidance time periods, each first noise avoidance time period being in a respective horizontal time period of a display driving operation, andwherein the capacitance detector is configured to receive the capacitance sensing signal during the first noise avoidance time periods.
1 Assignment
0 Petitions
Accused Products
Abstract
A capacitive touch panel sensor includes a plurality of driving-lines in a first direction, a plurality of sensing-lines in a second direction, a scan signal generator configured to generate a scan signal corresponding to at least one scan pulse, and to output the scan signal to the driving-lines, and a capacitance detector configured to receive a capacitance sensing signal output from the sensing-lines, and to detect a touched location based on the capacitance sensing signal, wherein the scan signal generator is configured to output the scan signal during first noise avoidance time periods, each first noise avoidance time period being in a respective horizontal time period of a display driving operation, and wherein the capacitance detector is configured to receive the capacitance sensing signal during the first noise avoidance time periods.
19 Citations
24 Claims
-
1. A capacitive touch panel sensor, comprising:
-
a plurality of driving-lines in a first direction; a plurality of sensing-lines in a second direction; a scan signal generator configured to generate a scan signal corresponding to at least one scan pulse, and to output the scan signal to the driving-lines; and a capacitance detector configured to receive a capacitance sensing signal output from the sensing-lines, and to detect a touched location based on the capacitance sensing signal, wherein the scan signal generator is configured to output the scan signal during first noise avoidance time periods, each first noise avoidance time period being in a respective horizontal time period of a display driving operation, and wherein the capacitance detector is configured to receive the capacitance sensing signal during the first noise avoidance time periods. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A capacitive touch panel sensor, comprising:
-
a plurality of driving-lines in a first direction; a plurality of sensing-lines in a second direction; a scan signal generator configured to generate a scan signal corresponding to at least one scan pulse, and to output the scan signal to the driving-lines; and a capacitance detector configured to receive a capacitance sensing signal output from the sensing-lines, and to detect a touched location based on the capacitance sensing signal, wherein the scan signal generator is configured to output the scan signal during noise avoidance time periods, each noise avoidance time period being in a respective vertical blanking time of a display driving operation, and wherein the capacitance detector is configured to receive the capacitance sensing signal during the noise avoidance time periods. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A capacitive touch panel sensor, comprising:
-
a plurality of driving-lines in a first direction; a plurality of sensing-lines in a second direction; a scan signal generator configured to generate a scan signal corresponding to at least one scan pulse, and to output the scan signal to the driving-lines; and a capacitance detector configured to receive a capacitance sensing signal output from the sensing-lines, and to detect a touched location based on the capacitance sensing signal, wherein the scan signal generator is configured to output the scan signal during data stop time periods generated at a predetermined cycle when a display device performs a display driving operation, and wherein the capacitance detector is configured to receive the capacitance sensing signal during the data stop time periods. - View Dependent Claims (18, 19, 20)
-
-
21. A touch panel display device, comprising:
-
a display panel configured to perform a display driving operation; a touch screen panel configured to perform a touch detecting operation; a display driver configured to control the display panel; and a touch screen panel controller configured to control the touch screen panel to perform the touch detecting operation during noise avoidance time periods. - View Dependent Claims (22, 23, 24)
-
Specification