Display device having organic light emitting diode with low threshold layer
US11895858B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 2021 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Dec 31, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/353
Abstract
A display device includes: light-emitting regions different in luminescent colors and including luminescent layers separated for each of the luminescent colors; a low-threshold layer lower in threshold voltage than any one of the luminescent layers included in a pair of different-color light-emitting regions included in the light-emitting regions, different in the luminescent colors, and adjacent to each other; a continuous layer under the luminescent layers and the low-threshold layer, including first areas and a second area continuously, the first areas being in contact with the respective light-emitting regions, the second area being in contact with the low-threshold layer; pixel electrodes under the continuous layer, overlapping with the respective light-emitting regions; and a counter electrode over the luminescent layers and the low-threshold layer, being opposed to the pixel electrodes. The low-threshold layer is between the pair of different-color light-emitting regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.