Stmicroelectronics (grenoble 2) Sas

Stmicroelectronics S.r.l.

Salim Bouchene

Pascal Mellot

Jean-Jacques Rouger

Cedric Grospellier

Mickael Guene

The present disclosure relates to a method for sanitization of a surface by emission of a plurality of sanitization wavelengths, and to a device for implementing the method. The method comprises emitting light using first LEDs configured to emit the sanitization wavelengths, receiving, by a circuit, a feedback signal from a light sensor indicating a light intensity received by the light sensor during the light emission, and controlling the first LEDs with the circuit based on the feedback signal.

Sanitization using light

A display includes a display panel and a circuit. The circuit controls the display panel according to at least one control mode such as a pulse width modulation control mode. A method for determining a state of the display includes: acquiring samples from a channel of an ambient light sensor disposed below the display panel; supplying the samples to a processing circuit; detecting, by the processing circuit and based on said samples, whether the display panel is controlled in pulse width modulation; and following detecting the pulse width modulation control mode, calculating by the processing circuit a duty cycle from the samples.

Method of determining a state of a display

The present disclosure relates to a device and method for measuring a flicker frequency of a light source configured to implement at least one phase lock loop.

Growing community of inventors

Seyssinet-Pariset, France

Salim Bouchene