DISPLAY DEVICE HAVING TOUCH SENSOR

摘要

A display device includes a display panel including a display driving circuit, and a touch sensing circuit. The display panel includes first and second panel blocks, each including pixel arrays including touch sensors. The display driving circuit includes a shift register for sequentially outputting a gate pulse applied to a gate line. The shift register includes first and second shift registers and a compensation stage. The first shift register applies a gate pulse to gate lines arranged in the first panel block, and the second shift register applies a gate pulse to gate lines arranged in the second panel block during at least a portion of the display period when a node of the second shift register is charged to a predetermined level. The compensation stage charges the node of the second shift register upon receiving a bridge clock during a touch sensing period of the first panel block.

主权项

1. A display device comprising:
a display panel including first and second panel blocks each including pixel arrays including touch sensors; a display driving circuit writing image data to pixels of the first panel block during a first display period and writing image data to pixels of the second panel block during a second display period; and a touch sensing circuit driving the touch sensors of the first panel block during a first touch sensing period and driving the touch sensors of the second panel block during a second touch sensing period, wherein the display driving circuit comprises:
a shift register sequentially outputting a gate pulse applied to a gate line, the shift register comprising:a first shift register applying a gate pulse to first gate lines arranged in the first panel block;a second shift register applying a gate pulse to second gate lines arranged in the second panel block, the second shift register applying the gate pulse to a gate line of the second gate lines during at least a portion of the second display period when a node of the second shift register is charged to a predetermined level; anda compensation circuit stage receiving a bridge clock and charging the node of the second shift register responsive to the bridge clock during the first touch sensing period of the first panel block.