Electro-optic device and electronic device

摘要

An electro-optic device including a pixel circuit that includes an electro-optic element and a driving transistor; a first data generation unit that, during a first period when image display operation is not performed, detects a temperature and generates first data which allows control of brightness of an image in accordance with the detected temperature; and a luminance control unit that, during a second period when image display operation is performed, performs control of luminance of the electro-optic element on the basis of the first data which is generated during the first period.

主权项

1. An electro-optic device comprising:
a single-crystalline silicon substrate; a pixel circuit formed on the single-crystalline silicon substrate, the pixel circuit including an electro-optic element and a driving transistor which supplies an electric current to the electro-optic element; a first data generator formed on the single-crystalline silicon substrate, the first data generator, during a first period when image display operation is not performed, detecting a temperature and generating first data which allows control of brightness of an image in accordance with the detected temperature, the first data generator including:
a temperature detector which detects the temperature and outputs, for each of a plurality of detections, count data at times when a voltage of a temperature signal and a voltage of a count signal are equal to each other, as one of a plurality of pieces of temperature data which indicate the temperature, the temperature detector including:
a temperature detection circuit that outputs, for each of the plurality of detections, the temperature signal having the voltage indicating the temperature;a counter that counts, for each of the plurality of detections, one of falling edges and rising edges of a horizontal synchronization signal and outputs resultant count data; anda digital to analog conversion circuit that, for each of the plurality of detections, performs digital to analog conversion of the count data and outputs the resultant count signal; andan average temperature calculator which calculates an average value of temperatures obtained by causing the temperature detector to perform the plurality of detections and calculating an average value of the plurality of pieces of temperature data, and generates the first data on a basis of the average value; and a luminance controller formed on the single-crystalline silicon substrate, the luminance controller, during a second period when image display operation is performed, controlling luminance of the electro-optic element in accordance with the first data.