Patent ID: 8138500
Filing Date: 2012-03-20
Classification: G02F

Abstract:
1. A display device comprising: a gate electrode over a light-transmitting substrate, wherein the gate electrode comprises a first conductive material; a data signal line over the light-transmitting substrate, wherein the data signal line comprises the first conductive material and extends in one direction; a first insulating film over the gate electrode and the data signal line; a semiconductor film over the first insulating film; a source electrode over the first insulating film and the semiconductor film, wherein the source electrode comprises a second conductive material; a drain electrode over the first insulating film and the semiconductor film, wherein the drain electrode comprises the second conductive material; a scan signal line over the first insulating film, wherein the scan signal line comprises the second conductive material and extends in a direction intersecting with the one direction; an auxiliary capacitor line over the first insulating film, wherein the auxiliary capacitor line comprises the second conductive material and extends in the direction intersecting with the one direction; a second insulating film over the first insulating film, the source electrode and the drain electrode, the scan signal line and the auxiliary capacitor line; a third insulating film having an opening over the second insulating film; and a pixel electrode over the third insulating film , the pixel electrode being in contact with a portion of the second insulating film in the opening, wherein one of the source electrode and the drain electrode is electrically connected to the semiconductor film and the data signal line, wherein the other of the source electrode and the drain electrode is electrically connected to the semiconductor film and the pixel electrode, wherein the gate electrode is electrically connected to the scan signal line; and wherein the auxiliary capacitor line and the pixel electrode are included in an auxiliary capacitor portion where the portion of the second insulating film is used as a dielectric film.