Light Emitting Device and Electronic Device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorMasahiro Takashi
Life of this patent
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Abstract
To improve light extraction efficiency of light emitting elements such as electroluminescent elements. A first electrode 101, a light emitting layer 102, and a second electrode 103 are formed over a substrate 100, which partially constitute a light emitting element. Light produced in the light emitting layer 102 is emitted out through the second electrode 103. A plurality of three-dimensional bodies 104 are provided in contact with a surface of the second electrode 103. With the provision of the bodies 104, light totally reflected between the second electrode 103 and the air enters the bodies 104 and can be emitted through faces of the bodies 104 that are not parallel to the interface between the bodies and the second electrode 103.
Claims13
(canceled)
A method for manufacturing a light-emitting device, the method comprising:
- forming a first electrode;
- forming a light-emitting layer over the first electrode;
- forming a second electrode over the light-emitting layer;
- forming a resin layer over the second electrode so as to allow the resin layer is in direct contact with the second electrode;
- bringing a stamper having a convex-concave surface into contact with the resin layer so that a surface shape of the stamper is transferred to the resin layer;
- curing the resin layer;
- and
- separating the stamper from the resin layer,
- wherein the convex-concave surface is covered by titanium oxide.
A method for manufacturing a light-emitting device, the method comprising:
- forming a first electrode;
- forming a light-emitting layer over the first electrode;
- forming a second electrode over the light-emitting layer;
- forming a resin layer over the second electrode so as to allow the resin layer is in direct contact with the second electrode;
- bringing a stamper having a convex-concave surface into contact with the resin layer so that a top surface of a convex of the stamper is brought into direct contact with the second electrode;
- curing the resin layer;
- and
- separating the stamper from the resin layer,
- wherein the convex-concave surface is covered by titanium oxide.
A method for manufacturing a light-emitting device, the method comprising:
- forming a first electrode;
- forming a light-emitting layer over the first electrode;
- forming a second electrode over the light-emitting layer;
- forming a resin layer over the second electrode so as to allow the resin layer is in direct contact with the second electrode;
- bringing a stamper having a convex-concave surface into contact with the resin layer so that a surface shape of the stamper is transferred to the resin layer;
- heating the stamper to cure the resin layer while keeping the stamper in contact with the resin layer;
- cooling the resin layer while keeping the stamper in contact with the resin layer;
- and
- separating the stamper from the resin layer,
- wherein the convex-concave surface is covered by titanium oxide.
Dependencies are inferred from the claim text.