Invention Grant
US09035284B2 Microlens for organic EL element, organic EL element using the same, and manufacturing methods thereof 有权
有机EL元件用微透镜,使用其的有机EL元件及其制造方法

Microlens for organic EL element, organic EL element using the same, and manufacturing methods thereof
Abstract:
A microlens for an organic EL element includes a cured resin layer having concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wave number is 0 μm−1, and the circular or annular pattern is present within a region where an absolute value of wave number is within a range of 1 μm−1 or less. The microlens is disposed on a light-emitting surface of the organic EL element.
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