Patent ID: 11860495
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A semiconductor device comprising:
a common electrode over a first substrate;
a first conductive layer over the first substrate, the first conductive layer electrically connected to the common electrode;
a semiconductor layer over the first substrate, the semiconductor layer comprising polycrystalline silicon;
a gate wiring, a part of the gate wiring overlapping with the semiconductor layer;
a source wiring, a part of the source wiring being over and in contact with the semiconductor layer;
a second conductive layer over and in contact with the semiconductor layer;
an insulating film over the common electrode, the first conductive layer, and the second conductive layer;
a pixel electrode over the insulating film, the pixel electrode electrically connected to the second conductive layer; and
liquid crystal molecules over the common electrode and the pixel electrode,
wherein the first conductive layer, the source wiring, and the second conductive layer comprise a same material,
wherein the pixel electrode has a plurality of slits,
wherein the part of the gate wiring and a first region of the common electrode overlap with each other, and
wherein the source wiring and a second region of the common electrode overlap with each other.