Backlight unit and display device including the same technical field
US11112652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2019 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Dec 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an embodiment, a backlight unit includes a light-emitting device and lower reflector on a substrate. The lower reflector has a hole that accommodates and exposes the light-emitting device. The lower reflector may have a height greater than a height of the light-emitting device. The backlight unit may include a color resin in the holes and on the light-emitting device. The backlight unit may include a light path modulator above the light emitting device and on the color resin. The light path modulator may have a different refractive index than a refractive index of the color resin to reflect the emitted light at a boundary of the light path modulator and the color resin towards the lower reflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.