Sheet and light-emitting device
AssigneePanasonic Corporation
InventorJumpei MATSUZAKI
Life of this patent
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Abstract
A sheet for use in a light-emitting device including layers including a light-emitting layer was invented. The sheet includes: a first layer including a plurality of projecting portions; and a second layer on the first layer, in which the projecting portions each include at least two steps, the second layer is formed on top at least surfaces of the steps, and when an effective refractive index of the first layer is n1, an effective refractive index of the second layer is n2, and an effective refractive index of the air above the second layer is n0, a relationship n1>n2>n0 is satisfied.
Claims15
A sheet for use in a light-emitting device including a light-emitting layer, the sheet comprising:
- a first layer including a plurality of projecting portions;
- and
- a second layer on the first layer,
- wherein the projecting portions each include at least two steps,
- the second layer is formed on at least top surfaces of the steps, and
- when an effective refractive index of the first layer is n1, an effective refractive index, of the second layer is n2, and a refractive index of the air above the second layer is n0, a relationship n1>n2>n0 is satisfied.
A light-emitting device including a light-emitting layer, the light-emitting device comprising:
- a first layer including a plurality of projecting portions;
- a second layer on the first layer;
- and
- a third layer on the second layer,
- wherein the projecting portions each include at least two steps,
- the second layer is formed on at least top surfaces of the steps,
- when an effective refractive index of the first layer is n1, an effective refractive index of the second layer is n2, and a refractive index of the third layer is n3, a relationship n1>n2>n3 is satisfied, and
- the first layer, the second layer, and the third layer are provided in the order of the first layer, the second layer, and the third layer in a direction from the light-emitting layer toward the air.
Dependencies are inferred from the claim text.