Light extraction substrate of organic light-emitting device and method of fabricating the same
US11690249B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | May 24, 2019 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jul 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/50
Abstract
Various aspects of a light extraction substrate, an organic light emitting device, and methods of fabrication are provided. A light extraction substrate of an organic light-emitting device includes a light-scattering layer disposed on a base substrate and contains a first material, and a number of holes (hole diameters ranging from 350 nm to 450 nm) extending between the first surface and the second surface. A planarization layer (thickness not greater than 200 nm) is disposed on the light-scattering layer and contains a second material.
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