Display device
AssigneeJapan Display Inc.
InventorNaoki TOKUDA
Life of this patent
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Abstract
A display device includes: a light-emitting element including a light-emitting layer, an anode, and a cathode, the anode and the cathode interposing the light-emitting layer therebetween; a sealing layer covering the light-emitting element, at least an uppermost layer of the sealing layer being composed of a silicon nitride film; a first resin layer stacked on and in contact with the silicon nitride film; and a second resin layer stacked on and in contact with the first resin layer. A difference between refractive indices of the silicon nitride film and the first resin layer is less than 0.3. A difference between refractive indices of the first resin layer and the second resin layer is less than 0.3.
Claims19
A display device comprising:
- a light-emitting element including a light-emitting layer, an anode, and a cathode, the anode and the cathode interposing the light-emitting layer therebetween;
- a sealing layer covering the light-emitting element, at least an uppermost layer of the sealing layer being composed of a silicon nitride film;
- a first resin layer stacked on and in contact with the silicon nitride film;
- and
- a second resin layer stacked on and in contact with the first resin layer, wherein
- a difference between refractive indices of the silicon nitride film and the first resin layer is less than 0.3, and
- a difference between refractive indices of the first resin layer and the second resin layer is less than 0.3.
A display device comprising:
- a light-emitting element including a light-emitting layer, an anode, and a cathode, the anode and the cathode interposing the light-emitting layer therebetween;
- a sealing layer covering the light-emitting element, at least an uppermost layer of the sealing layer being composed of a silicon nitride film;
- a first resin layer stacked on and in contact with the silicon nitride film;
- and
- a second resin layer stacked on and in contact with the first resin layer, wherein
- a refractive index of the first resin layer is smaller than a refractive index of the silicon nitride film, and
- a refractive index of the second resin layer is smaller than the refractive index of the first resin layer.
A display device comprising:
- a light-emitting element including a light-emitting layer, an anode, and a cathode, the anode and the cathode interposing the light-emitting layer therebetween;
- a sealing layer covering the light-emitting element, at least an uppermost layer of the sealing layer being composed of a silicon nitride film;
- a resin layer stacked on and in contact with the silicon nitride film, the resin layer being made of a bonding material or an adhesive material;
- and
- an optical film stacked on an opposite side of the resin layer from the silicon nitride film, the optical film being in contact with the resin layer, wherein
- the silicon nitride film includes a first region in contact with the resin layer, and a second region which is closer to the light-emitting element than the first region is,
- the first region has a first refractive index,
- the second region has a second refractive index, and
- a difference between a refractive index of the resin layer and the first refractive index is smaller than a difference between the refractive index of the resin layer and the second refractive index.
Dependencies are inferred from the claim text.