Patent ID: 11874996
Assignee: LG DISPLAY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A level shifter for a touch display device, comprising:
a plurality of output pins; and
an overcurrent detection circuit for detecting whether an overcurrent flows through the plurality of output pins,
wherein the level shifter generates a level-shifted signal by shifting a voltage level of an alternating current (AC) signal output from a touch driving circuit and outputs the level-shifted signal to a touch panel,
wherein the level shifter includes a plurality of output pins,
wherein the overcurrent detection circuit is electrically connected to at least one output pin among the plurality of output pins,
wherein the level shifter further includes a feedback signal output pin that outputs a feedback signal which has a different value when an overcurrent flows through any one output pin among the plurality of output pins than when the overcurrent does not flow through the any one output pin.