US 11,989,065 B2
Screen state detection using an electrostatic charge variation sensor
Fabio Passaniti, Syracuse (IT); and Enrico Rosario Alessi, Catania (IT)
Assigned to STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed by STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed on Jan. 18, 2022, as Appl. No. 17/578,336.
Prior Publication US 2023/0229201 A1, Jul. 20, 2023
Int. Cl. H01T 23/00 (2006.01); G06F 1/16 (2006.01)
CPC G06F 1/1677 (2013.01) [G06F 1/1616 (2013.01); G06F 1/1652 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a bendable display;
a first stimulus electrode configured to transmit a first key signal;
a first receiving electrode configured to receive an electrostatic charge variation in a surrounding environment;
an electrostatic charge variation sensor configured to measure the electrostatic charge variation, and generate electrostatic charge variation data based on the measured electrostatic charge variation; and
a processor configured to determine whether the bendable display is in an open state or a closed state based on the electrostatic charge variation data and the first key signal.