Electroluminescent display device having a plurality of low-refractive members
US10658623B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Nov 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An electroluminescent display device includes an overcoat layer on a substrate; a plurality of low-refractive members formed of an inorganic matter and disposed on the overcoat layer; a first electrode on the overcoat layer and the plurality of low-refractive members; a bank layer disposed on the overcoat layer and the first electrode and including an opening configured to expose the first electrode; an emitting layer disposed on the first electrode; and a second electrode disposed on the emitting layer, wherein each of the plurality of low-refractive members includes a first flat surface contacting the first electrode, a second flat surface having an area greater than that of the first flat surface and contacting the overcoat layer and first and second inclined surfaces connecting the first flat surface and the second flat surface, and, wherein a refractive index of each of the plurality of low-refractive members is lower than those of the overcoat layer and the first electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.