Patent ID: 7535166
Filing Date: 2009-05-19
Classification: H01L

Abstract:
1. An organic EL display comprising: an organic EL element which comprises a first electrode, a second electrode facing the first electrode, and an active layer interposed between the first and second electrodes and including an emitting layer; and an outcoupling layer facing the first electrode, wherein the organic EL element forms a waveguide layer which includes the first electrode and the active layer and in which light components from the emitting layer propagate in an in-plane direction parallel to a main surface of the waveguide layer while causing multiple-beam interference, wherein a distance between the outcoupling layer and the waveguide layer is shorter than a wavelength of light from the organic EL element, and wherein a guide length x in μm calculated by using a following equation (1), a number of reflection m calculated by using a following equation (2), an absorption coefficient α in μm