Microlens for organic EL element, organic EL element using the same, and manufacturing methods thereof
US9194984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/246
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A microlens for an organic EL element, which is used by being disposed on a light-emitting surface of the organic EL element, said microlens comprising 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 wavenumber is 0 μm−1, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 1 μm−1 or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.