Touch sensing display device for sensing different touches using one driving signal
First Claim
Patent Images
1. A touch sensing display device comprising:
- a display panel;
a capacitive touch panel disposed on a front surface of the display panel;
a digitizer disposed on a surface of the display panel;
a sensor driving unit which applies same scanning signals simultaneously to the capacitive touch panel and the digitizer; and
a sensing unit which senses a sensing signal of the capacitive touch panel and a sensing signal of the digitizer,wherein the sensing unit receives the sensing signal of the capacitive touch panel and the sensing signal of the digitizer at different times,wherein each of the scanning signals is applied during a scanning signal application period, and a blank period is between two consecutive scanning signal application periods,wherein the sensing signal of the capacitive touch panel is transferred to the sensing unit during the scanning signal application period, andwherein the sensing signal of the digitizer is transferred to the sensing unit during the blank period.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch sensing display device includes: a display panel; a capacitive touch panel disposed on a front surface of the display panel; a digitizer disposed on a surface of the display panel; a sensor driving unit which sequentially applies scanning signals to the capacitive touch panel and the digitizer, where each of the scanning signal is applied simultaneously to the capacitive touch panel and the digitizer; and a sensing unit which senses sensing signals of the capacitive touch panel and the digitizer, in which the sensing unit receives the sensing signal of the capacitive touch panel and the sensing signal of the digitizer at different times.
-
Citations
14 Claims
-
1. A touch sensing display device comprising:
-
a display panel; a capacitive touch panel disposed on a front surface of the display panel; a digitizer disposed on a surface of the display panel; a sensor driving unit which applies same scanning signals simultaneously to the capacitive touch panel and the digitizer; and a sensing unit which senses a sensing signal of the capacitive touch panel and a sensing signal of the digitizer, wherein the sensing unit receives the sensing signal of the capacitive touch panel and the sensing signal of the digitizer at different times, wherein each of the scanning signals is applied during a scanning signal application period, and a blank period is between two consecutive scanning signal application periods, wherein the sensing signal of the capacitive touch panel is transferred to the sensing unit during the scanning signal application period, and wherein the sensing signal of the digitizer is transferred to the sensing unit during the blank period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification