Circuit board for electro-optical device, electro-optical device, and electronic apparatus

1. An electro-optical device comprising:

a substrate;

data lines disposed over the substrate and scanning lines disposed over the substrate, the data lines and the scanning lines intersecting with each other;

pixels corresponding to intersections between the data lines and the scanning lines

transistors disposed over the substrate at positions of the pixels;

a plurality of storage capacitors in a layer above the transistors each storage capacitor including;

a fixed-electric-potential-side capacitor electrode located in a lower layer of the storage capacitor;

a pixel-electric-potential-side capacitor electrode located in an upper layer of the storage capacitor; and

a dielectric film sandwiched between the fixed-electric-potential-side capacitor electrode and the pixel-electric-potential-side capacitor electrode;

an interlayer insulation film in a layer above the pixel-electric-potential-side capacitor electrode, a first contact hole being formed through the interlayer insulation film; and

pixel electrodes each disposed in a pixel and electrically connected to the pixel-electric-potential-side capacitor electrode, each pixel electrode including a first relay electrode formed in a layer above the pixel-electric-potential-side capacitor electrode with the interlayer insulation film sandwiched between the first relay electrode and the pixel-electric-potential-side capacitor electrode, the first relay electrode being electrically connected to the pixel-electric-potential-side capacitor electrode via the first contact hole so that an electric relay connection is provided between the pixel-electric-potential-side capacitor electrode and the transistor.

2. The electro-optical device according to claim 1 , wherein the storage capacitor is formed at a layer above the data line.

3. The electro-optical device according to claim 2 , further comprising a second relay electrode formed from an electro-conductive film located in the same layer as at least one of the fixed-electric-potential-side capacitor electrode and the data line, the second relay electrode providing an electric relay connection between the first relay electrode and the transistor.

4. The electro-optical device according to claim 3 , the second relay electrode being located in the same layer as the fixed-electric-potential-side capacitor electrode; and the pixel electrode and the second relay electrode being electrically connected to each other via a second contact hole formed through the interlayer insulation film and the dielectric film.

5. The electro-optical device according to claim 4 , wherein the pixel-electric-potential-side capacitor electrode has a film thickness that is smaller than a film thickness of the data line and that is smaller than a film thickness of the fixed-electric-potential-side capacitor electrode.

6. The electro-optical device according to claim 1 , wherein each of the pixel-electric-potential-side capacitor electrode and the fixed-electric-potential-side capacitor electrode is made of a metal film.

7. The electro-optical device according to claim 6 , further comprising a plurality of capacitor lines formed over the substrate, each of the capacitor lines being electrically connected to the fixed-electric-potential-side capacitor electrode.

8. The electro-optical device according to claim 6 , wherein the data line is made of a metal film.

9. An electronic apparatus that is provided with the electro-optical device according to claim 1 .