Patent ID: 8017945

Claim:
A display device comprising: a single crystal semiconductor substrate; a first FET including a first LDD region, a second LDD region, a first source, a first drain, and a first channel region; a second FET including a second source, a second drain, and a second channel region; and a light-emitting element electrically connected to one of the second source and the second drain of the second FET through one of a first source wiring and a first drain wiring, wherein: the first LDD region is formed between the first source and the first channel region, the second LDD region is formed between the first drain and tthe first channel region, the second FET comprises at least one gate electrode electrically connected to one of the first source and the first drain of the first FET, and the first LDD region, the second LDD region, the first source, the first drain, and the first channel region of the first FET and the second source, the second drain, and the second channel region of the second FET are formed in the single crystal semiconductor substrate.