Display Device And Touch Sensing Method Thereof
First Claim
1. A display device comprising:
- a timing controller for driving one frame by a time division method so as to alternately perform a displaying driving mode for displaying an image on a display panel and a touch sensing mode for sensing a user'"'"'s touch; and
a touch sensor for determining a DTX compensation block including at least one touch sensing block corresponding to a unit for sensing the user'"'"'s touch;
calculating a compensation representative value which is a DTX value corresponding to a first average of grayscale values applied to a plurality of pixels overlapped with the DTX compensation block, and calculating a sensing block average value which is the DTX value corresponding to a second average of grayscale values applied to a plurality of pixels overlapped with the touch sensing block; and
sensing the user'"'"'s touch by compensating for touch data in accordance with a difference between the compensation representative value and the sensing block average value.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a display device capable of improving touch sensitivity by removing noise from a user'"'"'s touch signal through compensation of display touch crosstalk, and a touch sensing method thereof, wherein the display device may include a timing controller for driving one frame by a time division method to alternately perform a displaying driving mode and a touch sensing mode; and a touch sensor for determining a DTX compensation block including at least one touch sensing block corresponding to a unit for sensing a user'"'"'s touch; calculating a compensation representative value and a sensing block average value; and sensing a user'"'"'s touch by compensating for touch data in accordance with a difference between the compensation representative value and the sensing block average value.
-
Citations
10 Claims
-
1. A display device comprising:
-
a timing controller for driving one frame by a time division method so as to alternately perform a displaying driving mode for displaying an image on a display panel and a touch sensing mode for sensing a user'"'"'s touch; and a touch sensor for determining a DTX compensation block including at least one touch sensing block corresponding to a unit for sensing the user'"'"'s touch;
calculating a compensation representative value which is a DTX value corresponding to a first average of grayscale values applied to a plurality of pixels overlapped with the DTX compensation block, and calculating a sensing block average value which is the DTX value corresponding to a second average of grayscale values applied to a plurality of pixels overlapped with the touch sensing block; and
sensing the user'"'"'s touch by compensating for touch data in accordance with a difference between the compensation representative value and the sensing block average value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A touch sensing method of a display device for driving one frame by a time division method so as to alternately perform a displaying driving mode for displaying an image on a display panel and a touch sensing mode for sensing a user'"'"'s touch, comprising:
-
determining a DTX compensation block including at least one touch sensing block corresponding to a unit for sensing the user'"'"'s touch; in the touch sensing mode, calculating a compensation representative value which is a DTX value corresponding to a first average of grayscale values applied to a plurality of pixels overlapped with the DTX compensation block, and calculating a sensing block average value which is a DTX value corresponding to a second average of grayscale values applied to a plurality of pixels overlapped with the touch sensing block; and in the touch sensing mode, calculating a DTX compensation value in accordance with a difference between the compensation representative value and the sensing block average value. - View Dependent Claims (9, 10)
-
Specification