Patent ID: 11869978
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. A liquid crystal display device comprising:
a gate wiring layer;
a transistor comprising an oxide semiconductor layer overlapping with the gate wiring layer;
a first insulating film over each of the transistor and the gate wiring layer;
a color filter layer above the first insulating film;
a first electrode layer above the color filter layer and electrically connected to the transistor;
a second insulating film above the first electrode layer;
a second electrode layer above the second insulating film;
a liquid crystal layer above each of the first electrode layer and the second electrode layer; and
a wiring layer below the first insulating film and electrically connected to the second electrode layer,
wherein the color filter layer overlaps with the transistor,
wherein in a plan view the first electrode layer has a comb-shape,
wherein in the plan view the second electrode layer comprises a first portion generally parallel to the gate wiring layer and a second portion having a comb-shape,
wherein in a plan view the wiring layer is generally parallel to the gate wiring layer, and comprises a first portion overlapping with the second electrode layer and a second portion not overlapping with the second electrode layer,
wherein the oxide semiconductor layer includes a crystal having a diameter of 1 nm to 10 nm, and
wherein the crystal contains indium, gallium, and zinc.