公开(公告)号：US10437368B2

公开(公告)日：2019-10-08

申请号：US15878461

申请日：2018-01-24

Applicant: Japan Display Inc.

Inventor： Hideki Ozawa ,  Hajime Akimoto

IPC: G06F3/045 ,  G06F3/041 ,  G06F1/16 ,  G06F3/044 ,  H01L27/32 ,  H01L51/00 ,  G02F1/1333

Abstract: A display device includes a digitizer that outputs a signal according to an output value from a pressure sensor, a trigger generating circuit that receives the output from the pressure sensor and generates a trigger signal, a control circuit that drives the touch sensor and the pressure sensor, and a power supply circuit that supplies first electric power to the touch sensor, the pressure sensor, the digitizer, and the control circuit. When the power supply circuit does not supply the first electric power and there is input to the pressure sensor, the trigger generating circuit receives second electric power in response to the input. The trigger generating circuit generates and inputs the trigger signal based on the second electric power to the power supply circuit, and thereby, the power supply circuit shifts to a state of supplying the first electric power.