Display device
US12100789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2021 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Dec 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A display device, including a circuit substrate, a light-emitting layer, a quarter-wave plate, and a band-pass polarizing layer, is provided. The light-emitting layer is disposed on the circuit substrate and has light-emitting structures, which are electrically connected to the circuit substrate and include first light-emitting structures, which have a first main light-emitting wavelength. The quarter-wave plate is disposed in overlap with the light-emitting structures and is located between the band-pass polarizing layer and the light-emitting layer. The band-pass polarizing layer includes at least one first band-pass polarizing pattern, which have a first absorption axis. The first wavelength range is the first main light-emitting wavelength±10 nm. An average transmittance of the first band-pass polarizing patterns to light with a wavelength outside the first wavelength range and a polarization direction parallel to the first absorption axis is less than 20%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.