Title:
有機エレクトロルミネッセンス素子
Document Type and Number:
Japanese Patent JP5390850
Kind Code:
B2
Abstract:
The electroluminescence element comprises the light-reflective-electrode separated from the luminous point by distance "d" satisfying the following formula. nd = a × » 4 2 ¢ m + Æ À wherein Æ = tan - 1 2 ¢ n 1 ¢ k 2 - n 2 ¢ k 1 n 1 2 - n 2 2 + k 1 2 - k 2 2
A is a wavelength of the light from the light emission layer. N is a refrective index of a certain layer between the luminous point and the light-reflective-electrode at A. n1 and k1 is a refractive index and the extinction coefficience of the certain layer at A. n2 and k2 is a refractive index and the extinction coefficience of the light-reflective-electrode at A. m is 0 or 1. When "m" is 0, "a" satisfies the following formula. - 1.17 × n org / n EML + 1.94 ¤ a ¤ - 0.16 × n org / n EML + 2.33
When "m" is 1, "a" satisfies the following formula. 0.28 × n org / n EML + 0.75 ¤ a ¤ 2.85 × n org / n EML - 1.23
norg is a refractive index of a predetermined layer in contact with the light emission layer to be located on the same side as the light-reflective-electrode at A. nEML is a refractive index of the light emission layer at A.
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Inventors:
Masato Yamana
Nakamura Masahiro
Nakamura Masahiro
Application Number:
JP2008324555A
Publication Date:
January 15, 2014
Filing Date:
December 19, 2008
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
H01L51/50; H05B33/02; H05B33/12; H05B33/24
Domestic Patent References:
| JP2004296429A | ||||
| JP2006253015A | ||||
| JP2003272860A |
Attorney, Agent or Firm:
Keisei Nishikawa