APPARATUS FOR TOUCH SENSING, DISPLAY DEVICE, AND OPERATING METHOD FOR THE SAME

摘要

A touch sensing apparatus includes: a sense unit connected to a sense scan line and a sense line; a location detection unit that detects a location of a touch from a sense signal transmitted from the sense unit through the sense line; and a determination and trigger unit that determines whether a touch is sensed from the sense signal, generates a trigger signal that instructs whether or not to operate the location detection unit, and transmits the trigger signal to the location detection unit. The determination and trigger unit includes a logic operation circuit that generates a trigger signal for operation of the location detection unit when the sense signal implies that a touch is sensed while a sense driving signal is applied to at least one of a plurality of sense scan lines. The location detection unit is operated at a minimum to minimize power consumption.