Patent ID: 7786958

Claim:
An electronic device comprising: an EL display device including: a thin film transistor; an EL element that comprises a pixel electrode electrically connected to the thin film transistor, an EL layer formed over the pixel electrode, and an electrode formed over the EL layer; an applying means for applying an image signal to the EL element; an insulating layer over the EL element and the applying means for applying the image signal to the EL element, the insulating layer comprising a silicon nitride film and a carbon film; and a correcting means for gamma (γ)-correcting the image signal, wherein the correcting means is configured to amplify a signal of red and attenuate a signal of blue or green, wherein the EL element comprises: a first pixel comprising a blue luminescent layer, a second pixel comprising a green luminescent layer, and a third pixel comprising a red luminescent layer.