Patent ID: 8395608
Filing Date: 2013-03-12
Classification: G09G,H01L

Abstract:
1. An active matrix display device comprising: a substrate; an amplifier circuit over the substrate; and a pixel portion over the substrate, wherein the pixel portion comprises a pixel, wherein the pixel comprises a first TFT, a second TFT and an EL element, wherein one of a source and a drain of the first TFT is electrically connected to the amplifier circuit and the other of the source and the drain of the first TFT is electrically connected to a gate of the second TFT, wherein the EL element is electrically connected to one of a source and a drain of the second TFT, wherein one of a source and a drain of a third TFT is directly connected to an input terminal of the amplifier circuit, wherein the other of the source and the drain of the third TFT is directly connected to an output terminal of the amplifier circuit, and wherein a gate of the third TFT is directly connected to the source and the other of the source and the drain of the third TFT.