초록 ▼

To provide an electronic device capable of bright image display. A pixel is structured such that a switching TFT and a current controlling TFT are formed on a substrate and an EL element is electrically connected to the current controlling TFT. A gate capacitor formed between a gate electrode of the

To provide an electronic device capable of bright image display. A pixel is structured such that a switching TFT and a current controlling TFT are formed on a substrate and an EL element is electrically connected to the current controlling TFT. A gate capacitor formed between a gate electrode of the current controlling TFT and an LDD region thereof holds a voltage applied to the gate electrode, and hence a capacitor (condenser) is not particularly necessary in the pixel, thereby making the effective light emission area of the pixel large.

대표청구항 ▼

1. An electronic device comprising:a first thin film transistor; a second thin film transistor having: a gate electrode, a gate insulating film, at least an LDD region, wherein the gate electrode of the second thin film transistor is electrically connected to a drain wiring of the first thin film tr

1. An electronic device comprising:a first thin film transistor; a second thin film transistor having: a gate electrode, a gate insulating film, at least an LDD region, wherein the gate electrode of the second thin film transistor is electrically connected to a drain wiring of the first thin film transistor; a self light emitting element, wherein the self light emitting element is electrically connected to a drain wiring of the second thin film transistor, wherein the second thin film transistor is a p-channel thin film transistor, wherein at least a portion of the LDD region of the second thin film transistor is overlapped with the gate electrode with the gate insulating film interposed therebetween.