Electroluminescent display device comprising trenches between adjacent subpixels
US12048218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2021 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | May 6, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/878
Abstract
An electroluminescent display device includes a substrate having a first subpixel and a second subpixel, which are adjacent to each other, a first electrode provided in each of the first subpixel and the second subpixel on the substrate, a trench including a first trench and a second trench, which are provided to be spaced apart from each other at a boundary between the first subpixel and the second subpixel on the substrate, a light emitting layer provided on the first electrode and provided in the first subpixel, the second subpixel and a boundary between the first subpixel and the second subpixel, and a second electrode provided on the light emitting layer, wherein a first portion of the light emitting layer is discontinuous in the first trench and the second trench, a second portion of the light emitting layer is discontinuous in the first trench and is continuous in an area overlapped with the second trench, and a third portion of the light emitting layer is continuous in an area overlapping with the first trench and the second trench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.