ORGANIC ELECTROLUMINESCENCE COLOR LIGHT-EMITTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an organic EL light-emitting device realizing high luminescent efficiency, while preventing electrical short-circuitings among the electrodes facing each other.;SOLUTION: This organic EL light-emitting device has a first pixel 10 provided with a fist organic EL element, emitting light, having an emission peak wavelength λ₁, and a second pixel 20 provided with a second organic EL element emitting light, having an emission peak wavelength λ₂ on a support substrate 100. The emission peak wavelength λ₂ is a wavelength longer than the wavelength λ₁, and the first and second organic EL elements are elements formed by laminating at least light reflective electrodes 11, 21, organic light-emitting medium layers, and light semitransmissive electrodes, in this order in the light extracting direction, and m₁ and m₂, defined by Formula (1): m_X=2L_X/λ_X+ϕ_X/2π, satisfy the relation m₂+1.3m₁m₂+0.7. Here, m₁ and/or m₂ are substantially integers of zero or larger.;COPYRIGHT: (C)2006,JPO&NCIPI