Patent ID: 9230996
Filing Date: 2016-01-05
CPC Classification: H01L

Claim Text:
1. A light-emitting device comprising: a pixel comprising a light-emitting element, a first transistor and a second transistor; a first circuit configured to generate a signal including a value of current extracted from the pixel; and a second circuit configured to correct an image signal by the signal, wherein the first transistor is configured to control supply of current to the light-emitting element by the image signal, wherein the second transistor is configured to control extraction of current from the pixel, and wherein a semiconductor film of each of the first transistor and the second transistor comprises: a first semiconductor region overlapping with a gate electrode; a second semiconductor region in contact with a source electrode or a drain electrode; and a third semiconductor region containing higher concentration of hydrogen than the first semiconductor region and the second semiconductor region between the first semiconductor region and the second semiconductor region.