Light guiding structure of backlight device
US10656321B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2019 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jun 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light guiding structure of a backlight device having an insulation substrate, a micro LED, a reflecting layer, a light guiding layer and reflecting film. An illuminating surface is formed on the insulation substrate. The reflecting layer is stacked on the insulation substrate and stacked with the light guiding layer. The micro LED is arranged on the illuminating surface and illuminating toward a direction perpendicular to the illuminating surface. The reflecting film is stacked on the illuminating surface and covering on the micro LED, an edge of the light guiding layer is stacked between an edge of the reflecting film and the reflecting layer, a reflecting slope is defined on the reflecting film and extended from the micro LED to the edge of the light guiding layer. Light projected from the micro LED is reflected into the light guiding layer by the reflecting slope of the reflecting film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.