Wavelength control film and display device
US11659753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2020 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | May 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/351
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Embodiments of the disclosure relate to a wavelength control film and a display device. A wavelength control layer for absorbing part of light of a specific wavelength band is disposed on an outer surface of a transparent substrate of the display device to enable a correction to the color temperature of white light, thus allowing for high-efficiency driving and a high color gamut upon implementing white light. Further, adjustment of the light absorption peak wavelength and transmittance of the light absorption material included in the wavelength control film enables wavelength control, with the characteristics of the light emitting element considered, and reduce external light reflectivity to thus provide the functions of a polarization plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.