Light extraction substrate and organic light-emitting device having the same
US9214648B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | May 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
A light extraction substrate which can realize a superior light extraction efficiency when applied to an organic light-emitting device, and an organic light-emitting device having the same. The light extraction substrate includes a base substrate and a matrix layer. One surface of the matrix layer adjoins to the base substrate, and the other surface of the matrix layer adjoins to an organic light-emitting diode. The light extraction substrate also includes a rod array disposed inside the matrix layer. The rod array includes at least one rod which is arranged in a direction normal to the one surface of the matrix layer. The rod array and a cathode of the organic light-emitting diode form an antenna structure which guides light generated from the organic light-emitting diode to be emitted in the normal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.