Touch sensing system and method of driving the same
First Claim
1. A touch sensing system comprising:
- a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels;
a timing controller configured to time-divide one display frame into a plurality of touch periods and a plurality of display periods;
a microcontroller unit configured to divide a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode; and
a touch integrated circuit (IC) configured to sense a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sense a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode,wherein the microcontroller unit generates pulse width modulation (PWM) signals respectively corresponding to a first sync signal, a second sync signal, and a touch driving signal,wherein the first sync signal is allocated to a first touch period of the plurality of touch periods,wherein the second sync signal is allocated to a first portion of a second touch period of the plurality of touch periods, andwherein the touch drive signal is allocated to a second portion of the second touch period of the plurality of touch periods.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch sensing system and a method of driving the same are disclosed. The touch sensing system includes a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, a timing controller time-dividing one display frame into a plurality of touch periods and a plurality of display periods, a microcontroller unit dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode, and a touch integrated circuit (IC) sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode.
35 Citations
16 Claims
-
1. A touch sensing system comprising:
-
a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels; a timing controller configured to time-divide one display frame into a plurality of touch periods and a plurality of display periods; a microcontroller unit configured to divide a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode; and a touch integrated circuit (IC) configured to sense a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sense a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode, wherein the microcontroller unit generates pulse width modulation (PWM) signals respectively corresponding to a first sync signal, a second sync signal, and a touch driving signal, wherein the first sync signal is allocated to a first touch period of the plurality of touch periods, wherein the second sync signal is allocated to a first portion of a second touch period of the plurality of touch periods, and wherein the touch drive signal is allocated to a second portion of the second touch period of the plurality of touch periods. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of driving a touch sensing system including a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, the method comprising:
-
time-dividing one display frame into a plurality of touch periods and a plurality of display periods; dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode; sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode, and generating pulse width modulation (PWM) signals respectively corresponding to a first sync signal, a second sync signal, and a touch driving signal, wherein the first sync signal is allocated to a first touch period of the plurality of touch periods, wherein the second sync signal is allocated to a first portion of a second touch period of the plurality of touch periods, and wherein the touch driving signal is allocated to a second portion of the second touch period of the plurality of touch periods. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
Specification