Patent ID: 11862112
Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 18:
19. An electronic system comprising:
a control circuit configured to provide a binary control signal alternating between a first binary state during first phases and a second binary state during second phases;
a touch screen controlled by the binary control signal, the touch screen being configured to emit light during each first phase and not emit light during each second phase, the touch screen being of an organic light emitting diode (OLED) type;
a light sensor disposed under or along an edge of the touch screen, and configured to provide a measurement signal after a plurality of consecutive measurements across a plurality of consecutive second phases, each measurement being a representative of a quantity of light received by the light sensor during each measurement phase; and
a processing unit configured to determine a setpoint signal based on the measurement signal, the setpoint signal received by the control circuit to set a duration of the first binary state and the second binary state.