| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an organic light-emitting element which has high luminous efficiency and is small in view angle dependency of light-emitting characteristics of the element. Ž<P>SOLUTION: In the organic light-emitting element in which light going toward a light extraction electrode 103 from a light-emitting layer 105, and light which is emitted from the light-emitting layer 105 and reflected by a reflecting face on a reflecting electrode 102 side from the light-emitting layer 105 are interfered with each other. In the reflecting electrode 102 or on the opposite side of the light-emitting layer 105 side of the light extraction electrode 103, this has a resonance part (for example, dielectric layer 102B) to resonate light emitted from the light-emitting layer 105, and a film thickness d<SB>1</SB>of the resonance part satisfies a formula: m<SB>1</SB>+1/2<(2n<SB>1</SB>d<SB>1</SB>/λ)+ϕ/2π<m<SB>1</SB>+3/4 against the refractive index n<SB>1</SB>of the resonance part, the maximum peak wavelength λ of a spectrum of light extracted outside of the organic light-emitting element, a phase shift ϕ caused when light emitted from the light-emitting layer 105 is reflected on both ends of the resonance part, and an integer m<SB>1</SB>. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
