Patent ID: 8773347

Claim:
An electro-optical device comprising: an element substrate having a pixel including a pixel electrode for driving a liquid crystal, and a transistor for switching the pixel provided in correspondence with the pixel electrode, and a temperature detection conductive film formed by doping with an impurity in the same semiconductor layer as a semiconductor layer of the transistor; and a driving portion for supplying a driving signal for displaying a gray scale to the pixel electrode, wherein the driving portion includes a data conversion portion for converting image data and generating, as the driving signal, a digital driving signal made of an ON-voltage in which the brightness of the pixel is saturated and an OFF-voltage in which the pixel becomes a light-off state in each of a plurality of subfields in which a field period is divided on a time axis, and the data conversion portion performs a correction corresponding to a change in resistance in the temperature detection conductive film when generating the digital driving signal, wherein the element substrate includes a wiring for applying an electric current electrically connected to each of two points separated in a longitudinal direction of the temperature detection conductive film, a plurality of the temperature detection conductive films is formed on the element substrate, and the plurality of the temperature detection conductive films is electrically connected in series by the wiring for applying an electric current.