Patent ID: 9189994
Filing Date: 2015-11-17
Classification: G09G

Abstract:
1. A display device comprising a pixel array section, the pixel array section having pixels arranged in a matrix, each of the pixels including (a) an electro-optical element, (b) a write transistor configured to provide a video signal, (c) a holding capacitor, and (d) a drive transistor configured to drive the electro-optical element based on the video signal, wherein: each pixel has an auxiliary electrode, each pixel has an auxiliary capacitor, for each pixel, a first electrode of the auxiliary capacitor is connected to the drive transistor and a second electrode of the auxiliary capacitor is connected to the auxiliary electrode, for each pixel, the second electrode of the auxiliary capacitor is formed beneath the first electrode of the auxiliary capacitor as viewed in cross section, for each pixel, the second electrode of the auxiliary capacitor is connected to the auxiliary electrode via a second wiring formed in a layer in which a power supply line is formed, for each pixel, the second electrode of the auxiliary capacitor and the second wiring are made of the same metallic material, and for each pixel, the second electrode of the auxiliary capacitor comprises a third electrode and a fourth electrode electrically connected to each other, the third electrode is in a wiring layer in which gate electrode of the drive transistor is located such that the third electrode is opposed to the first electrode of the auxiliary capacitor via a gate insulating film therebetween, and the fourth electrode is in a wiring layer in which the power supply lines are located such that the fourth electrode is opposed to the first electrode of the auxiliary capacitor with an interlayer insulating film therebetween.