OLED device and manufacturing method thereof, and display apparatus
US10818864B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 31, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An OLED device, a manufacturing method of an OLED device and a display apparatus are provided. The OLED device includes a plurality of pixels, each of the plurality of pixels including a plurality of sub-pixels with different colors, each of the plurality of sub-pixels including a first electrode, a second electrode, and a light-emitting material layer disposed between the first electrode and the second electrode. A hole injection layer is disposed between the light-emitting material layer and the first electrode of each of the sub-pixels, and the number of layers of the hole injection layer between the light-emitting material layer and the first electrode of a part of the sub-pixels is lower than that of other sub-pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.