Patent ID: 8513701

Claim:
A display device comprising: a first substrate including a video signal line, a first electrode, a second electrode, a thin film transistor having a third electrode thereof connected to the video signal line and a fourth electrode thereof connected to the first electrode, a first silicon nitride film formed above the fourth electrode, an organic insulation film formed above the first silicon nitride film, a second substrate arranged to face the first substrate in an opposed manner, wherein the second electrode is formed above the organic insulation film, a second silicon nitride film is formed above the second electrode and below the first electrode, the organic insulation film has a first contact hole, the first silicon nitride film and the second silicon nitride film form a second contact hole therein which penetrates both of the first silicon nitride film and the second silicon nitride film, the first electrode and the fourth electrode are connected to each other via the first contact hole and the second contact hole, the second silicon nitride film is not in contact with the fourth electrode, wherein the first contact hole has a side wall which consists of the organic insulation film, and at least a part of the side wall is in contact with the second silicon nitride film.