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US 2012/0268670 A1Published application
Contact structure and semiconductor device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorShunpei YAMAZAKI
Life of this patent
Estimating the term…
Abstract
To improve the reliability of contact with an anisotropic conductive film in a semiconductor device such as a liquid crystal display panel, a terminal portion of a connecting wiring on an active matrix substrate is electrically connected to an FPC by an anisotropic conductive film. The connecting wiring is made of a lamination film of a metallic film and a transparent conductive film. In the connecting portion with the anisotropic conductive film, a side surface of the connecting wiring is covered with a protecting film made of an insulating material, thereby exposure to air of the metallic film can be avoided.
Claims59
A display device comprising:
- a substrate;
- a connecting wiring over the substrate, the connecting wiring comprising:
- a metallic film;
- and
- a transparent conductive film on and in contact with the metallic film;
- an organic insulating film thicker than the connecting wiring, in direct contact with a side surface of a terminal portion of the metallic film and over a peripheral portion of the terminal portion of the metallic film;
- an anisotropic conductive film on and in direct contact with the transparent conductive film over the terminal portion of the metallic film;
- and
- a touch panel over the substrate.
6 more elements
A display device comprising:
- a substrate;
- a connecting wiring over the substrate, the connecting wiring comprising:
- a metallic film;
- and
- a transparent conductive film on and in contact with the metallic film;
- an organic insulating film thicker than the connecting wiring, in direct contact with a side surface of a terminal portion of the metallic film and over a peripheral portion of the terminal portion of the metallic film;
- an anisotropic conductive film on and in direct contact with the transparent conductive film over the terminal portion of the metallic film;
- a touch panel over the substrate;
- and
- an opposing substrate over the substrate, a liquid crystal material and a columnar spacer being interposed between the substrate and the opposing substrate.
7 more elements
A display device comprising:
- a substrate;
- a connecting wiring over the substrate, the connecting wiring comprising:
- a metallic film;
- and
- a transparent conductive film on and in contact with the metallic film;
- an inorganic insulating film comprising a portion in direct contact with a side surface of a terminal portion of the metallic film;
- an organic insulating film thicker than the connecting wiring and covering the portion of the inorganic insulating film;
- an anisotropic conductive film on and in direct contact with the transparent conductive film over the terminal portion of the metallic film;
- and
- a touch panel over the substrate.
7 more elements
A display device comprising:
- a substrate;
- a transistor formed on the substrate;
- an inorganic insulating film over the transistor;
- an organic insulating film over the inorganic insulating film;
- a connecting wiring over the substrate, the connecting wiring comprising:
- a metallic film;
- and
- a transparent conductive film on and in contact with the metallic film;
- wherein the inorganic insulating film comprises a portion in direct contact with a side surface of a terminal portion of the metallic film;
- wherein the organic insulating film is thicker than the connecting wiring and covers the portion of the inorganic insulating film;
- an anisotropic conductive film on and in direct contact with the transparent conductive film over the terminal portion of the metallic film;
- and
- a touch panel over the substrate.
10 more elements
A display device comprising:
- a substrate;
- a connecting wiring over the substrate, the connecting wiring comprising:
- a metallic film;
- and
- a transparent conductive film on and in contact with the metallic film;
- an inorganic insulating film comprising a portion in direct contact with a side surface of a terminal portion of the metallic film;
- an organic insulating film thicker than the connecting wiring and covering the portion of the inorganic insulating film;
- an anisotropic conductive film on and in direct contact with the transparent conductive film over the terminal portion of the metallic film;
- a touch panel over the substrate;
- and
- an opposing substrate over the substrate, a liquid crystal material and a columnar spacer being interposed between the substrate and the opposing substrate.
8 more elements
A display device comprising:
- a substrate;
- a transistor formed on the substrate;
- an inorganic insulating film over the transistor;
- an organic insulating film over the inorganic insulating film;
- a connecting wiring over the substrate, the connecting wiring comprising:
- a metallic film;
- and
- a transparent conductive film on and in contact with the metallic film;
- wherein the inorganic insulating film comprises a portion in direct contact with a side surface of a terminal portion of the metallic film;
- wherein the organic insulating film is thicker than the connecting wiring and covers the portion of the inorganic insulating film;
- an anisotropic conductive film on and in direct contact with the transparent conductive film over the terminal portion of the metallic film;
- a touch panel over the substrate;
- and
- an opposing substrate over the substrate, a liquid crystal material and a columnar spacer being interposed between the substrate and the opposing substrate.
11 more elements
Dependencies are inferred from the claim text.