Patent ID: 7816862
Filing Date: 2010-10-19
Classification: C09K,H01L,H05B

Abstract:
1. An electroluminescent device which comprises: a pair of electrodes, at least one of the pair of the electrodes being a transparent electrode; and a light emitting layer between the pair of the electrodes, wherein the light emitting layer comprises: a luminescent layer; a light scattering layer; and a pigment layer in this order, starting from said transparent electrode; and wherein the electroluminescent device has at least two luminescent local maxima in a visible range, wherein the electroluminescent device has a first luminescent local maximum in a range of from 477 to 498 nm, and the electroluminescent device has a second luminescent local maximum in a range of 605 nm or more, and wherein the first and second luminescent local maxima are the two largest of all other luminescent local maxima.