| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a component suitable for manufacturing an organic EL element which can take the light emitted from a luminous layer out to the outside effectively, without having to form a transparent electrode or an organic luminous layer, etc. on an irregular structure in an organic EL based illumination or display, and also provide a component suitable for manufacturing an organic EL element which can take the light emitted from a luminous layer out to the outside effectively, without undergoing a complicated process of flattening the uneven face of a diffraction grating after filling it with a high refractive index transparent material, and further to provide a component suitable for manufacturing an organic EL element which can take the light emitted from a luminous layer out to the outside effectively, without having to form a structure matched to the wavelengths of each of light sources R, G and B. <P>SOLUTION: An optical sheet has a phase separation structure consisting of a sea-island structure and is comprised of a resin composition whose 5% weight loss temperature by a thermal weight reduction measurement is 330°C or higher, and whose haze is 1% or more. <P>COPYRIGHT: (C)2013,JPO&INPIT |
