Patent ID: 8530898

Claim:
A display device comprising: a semiconductor film which is arranged between a video signal line and a pixel electrode and which is provided with one or more channel regions and with one or more impurity doped regions which are doped with a first impurity; a light source which is arranged below the semiconductor film and which generates light; and one or more gate electrodes which are arranged below the semiconductor film and above the light source, and face the one or more channel regions in an opposed manner respectively, wherein: a low concentration region is arranged in contact between one channel region and one impurity doped region which are adjacent to each other, the low concentration region being doped with the first impurity or with a second impurity, different than the first impurity and having an impurity concentration lower than an impurity concentration of the one impurity doped region, and the low concentration region is comprised of a first low concentration region which is arranged adjacent to the one impurity doped region and a second low concentration region which is arranged adjacent to the channel region and which has an impurity concentration lower than the impurity concentration of the first low concentration region.