Light emitting device
US12419143B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2023 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Jan 27, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/857
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light emitting device including a blue light emitting portion configured to emit blue light, a green light emitting portion configured to emit green light, a red light emitting portion configured to emit red light, in which the blue light emitting portion include a first near-UV light emitting diode chip and a first wavelength conversion portion for wavelength conversion of near-UV light emitted from the first near-UV light emitting diode chip, blue light emitted from the blue light emitting portion includes a first peak wavelength in a wavelength band corresponding to near-UV light and a second peak wavelength in a wavelength band corresponding to blue light, and an intensity of the first peak wavelength is in a range of 0% to 20% of intensity of the second peak wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.