TOUCH SENSOR AND A DISPLAY DEVICE INCLUDING THE SAME
First Claim
1. A touch sensor comprising:
- a plurality of driving electrodes;
a plurality of sensing electrodes that intersect the plurality of driving electrodes;
a driver configured to substantially simultaneously supply driving signals to at least some of the plurality of driving electrodes;
a sensing unit configured to detect sensing signals from the plurality of sensing electrodes; and
a touch controller configured to control the driver so that the number of driving electrodes to which the driving signals are supplied in a first driving period is different from the number of driving electrodes to which the driving signals are supplied in a second driving period.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch sensor includes a plurality of driving electrodes, a plurality of sensing electrodes that intersect the plurality of driving electrodes, a driver configured to substantially simultaneously supply driving signals to at least some of the plurality of driving electrodes, a sensing unit configured to detect sensing signals from the plurality of sensing electrodes, and a touch controller configured to control the driver so that the number of driving electrodes to which the driving signals are supplied in a first driving period is different from the number of driving electrodes to which the driving signals are supplied in a second driving period.
-
Citations
20 Claims
-
1. A touch sensor comprising:
-
a plurality of driving electrodes; a plurality of sensing electrodes that intersect the plurality of driving electrodes; a driver configured to substantially simultaneously supply driving signals to at least some of the plurality of driving electrodes; a sensing unit configured to detect sensing signals from the plurality of sensing electrodes; and a touch controller configured to control the driver so that the number of driving electrodes to which the driving signals are supplied in a first driving period is different from the number of driving electrodes to which the driving signals are supplied in a second driving period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A display device comprising:
-
a display unit configured to display an image using image data; and a touch sensor that overlaps the display unit, wherein the touch sensor comprises; a plurality of driving electrodes; a plurality of sensing electrodes that intersect the plurality of driving electrodes; a driver configured to substantially simultaneously supply driving signals to at least some of the plurality of driving electrodes; a sensing unit configured to detect sensing signals from the plurality of sensing electrodes; and a touch controller configured to control the driver so that the number of driving electrodes to which the driving signals are supplied in a first driving period is different from the number of driving electrodes to which the driving signals are supplied in a second driving period. - View Dependent Claims (11, 12, 13, 14)
-
-
15. A method of operating a touch sensor comprising a plurality of driving electrodes and a plurality of sensing electrodes that intersect the plurality of driving electrodes, the method comprising:
-
detecting sensing signals from the plurality of sensing electrodes; determining magnitudes of noises from the sensing signals; determining whether the magnitudes of noises is less than a predetermined reference value; determining a select number of the plurality of driving electrodes to supply driving signals in response to determining whether the magnitude of noises is less than the predetermined reference value; and supplying the driving signals to the select number of the plurality of driving electrodes at substantially the same time. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification