| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminated-type light-emitting display device suppressing a fluctuation in chromaticity due to a fluctuation in film thickness, in a laminated element manufacturing process. SOLUTION: The device has a structure in which plural electrodes 30, 40, 50, 60 and EL (electroluminescent) layers 31, 41, 51 are laminated alternately. The device includes a reflecting surface for reflecting the light emitted from at least one EL layer on the outer side of a light-emitting layer of the outermost laminated EL layer 31 and a transparent thick film layer 21, formed such that the optical distance L from the reflecting surface to a reflecting surface side interface of a light-emitting layer radiating emitted light which is reflected from the reflection surface satisfies the conditional expression (1): 2L/λ+δ/2π≥8, whereλ: a peak wavelength of taken out light, andδ: a phase shift amount of the reflection surface. COPYRIGHT: (C)2011,JPO&INPIT
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