Sharp Kabushiki Kaisha Corporation

Shenzhen Torey Microelectronic Technology Co. Ltd.

Akira Masaoka

A current generation circuit that generates a current that serves as a current, a plurality of pixels arranged adjacent to one another, a source driver that supplies the same current to each of the plurality of pixels, an integrating circuit that measures the current, an ADC that converts a result of the measurement into digital data, and a control circuit that corrects degradation of other pixelson the basis of the digital data obtained by the ADC using, as the reference, the current that serves as the reference.

Display device with reference pixel circuit

A signal level converter includes a bias generating circuit that generates a bias voltage, and a level shifter circuit that converts a lower voltage signal into a higher voltage signal in response to the bias voltage. The bias generating circuit includes a replica circuit that controls an on-current of the level shifter circuit in response to the bias voltage output from an operational amplifier.

Growing community of inventors

Sakai, Japan

Akira Masaoka