Display device and method of manufacturing the same
AssigneeJapan Display Inc.
InventorsKenta Kajiyama, Masakazu Kaida
Life of this patent
Estimating the term…
Abstract
A display device and manufacturing method thereof with a high level of reliability is provided without increasing the number of manufacturing processes. The display device includes a first conductor, a first insulation layer including a first contact hole exposing a part of the first conductor, a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer, a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor, and a third insulation layer contacting the first insulation layer via the second contact hole.
Claims20
A display device comprising:
- a first conductor;
- a first insulation layer including a first contact hole exposing a part of the first conductor;
- a second insulation layer including a second contact hole exposing at least a part of the first contact hole and a part of a surface of the first insulation layer;
- a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor;
- a third insulation layer contacting the first insulation layer via the second contact hole;
- and
- an EL layer including a light emitting layer overlapping the pixel electrode,
- wherein an edge of the second contact hole is in the first contact hole, and
- the third insulation layer is between the pixel electrode and the EL layer.
A method of manufacturing a display device comprising:
- forming a first conductor;
- forming a first insulation layer arranged with a first contact hole so as to expose a part of the first conductor;
- forming a second insulation layer arranged with a second contact hole so as to expose at least a part of the first contact hole and a part of a surface of the first insulation layer;
- forming a pixel electrode overlapping a part of the second contact hole and electrically connected to the first conductor;
- forming a third insulation layer contacting the first insulation layer via the second contact hole;
- and
- forming an EL layer including a light emitting layer overlapping the pixel electrode,
- wherein an edge of the second contact hole is in the first contact hole, and
- the third insulation layer is between the pixel electrode and the EL layer.
Dependencies are inferred from the claim text.