Light-emitting device, display panel and driving method of light-emitting device
US11611053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2021 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Sep 23, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0666
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a light-emitting device, a display panel, and a driving method of the light-emitting device. The light-emitting device includes: a base substrate, a first electrode on a side of the base substrate, a second electrode on a side, facing away from the base substrate, of the first electrode, and at least two blue light-emitting layers located between the first electrode and the second electrode. Different blue light-emitting layers emit light with different wavelengths. The first electrode and the second electrode are configured to be applied with different voltages. A voltage difference between the first electrode and the second electrode includes a first threshold voltage and a second threshold voltage, and under control of the first threshold voltage, one of the blue light-emitting layers emits light; and under control of the second threshold voltage, another blue light-emitting layer emits light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.