Organic light-emitting device
AssigneeFuji Photo Film Co., Ltd.
InventorYasushi Araki
Life of this patent
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Abstract
An organic light-emitting device comprising: a back electrode; an organic light-emitting layer; a transparent electrode; a first reflective mirror; a substrate; and a second reflective mirror in this order, the second reflective mirror having R1(θ=0°) of 80 to 100% and R2(θ=0°) of 0 to 40%, wherein R1(θ) is an average reflectance at a wavelength λ being 400 nm to (λ0−Δλ) (where λ0 is a resonance wavelength; and Δλ=λmax−λ0, λmax is a maximum wavelength that is obtained by measuring reflectance having the same value equal to Rα in a wavelength range about 400-700 nm, and Rα is an average reflectance at a wavelength range from 400 nm to (λ0−100) nm) at an incidence angle θ, and R2(θ) is an average reflectance at a wavelength λ is λ0 to 700 nm at an incidence angle θ.
Claims26
An organic light-emitting device comprising:
- a back electrode;
- an organic light-emitting layer;
- a transparent electrode;
- a first reflective mirror;
- a substrate;
- and
- a second reflective mirror in this order,
- the second reflective mirror having R1(θ=0°) of 80 to 100% and R2(θ=0°) of 0 to 40%, wherein R1(θ) is an average reflectance at a wavelength λ being 400 nm to (λ0−Δλ) (where λ0 is a resonance wavelength;
- and Δλ=λmax−λ0, λmax is a maximum wavelength that is obtained by measuring reflectance having the same value equal to Rα in a wavelength range about 400-700 nm, and Rα is an average reflectance at a wavelength range from 400 nm to (λ0−100) nm) at an incidence angle θ, and R2(θ) is an average reflectance at a wavelength λ is λ0 to 700 nm at an incidence angle θ.
An organic light-emitting device comprising:
- a back electrode;
- an organic light-emitting layer;
- a transparent electrode;
- a first reflective mirror;
- a substrate;
- and
- a second reflective mirror in this order,
- the second reflective mirror having dλ(θ)/dθ having an absolute value of 10 or smaller, wherein λ(θ) is a wavelength giving a reflectance (R1(θ)+R2(θ))/2;
- R1(θ) is an average reflectance at a wavelength λ being 400 nm to (λ0−Δλ) (where λ0 is a resonance wavelength;
- and Δλ=λmax−λ0, λmax is a maximum wavelength that is obtained by measuring reflectance having the same value equal to Rα in a wavelength range about 400-700 nm, and Rα is an average reflectance at a wavelength range from 400 nm to (λ0−100) nm) at an incidence angle θ, and R2(θ) is an average reflectance at a wavelength λ is λ0 to 700 nm at an incidence angle θ.
Dependencies are inferred from the claim text.