Direct type backlight and method of manufacturing the same, and display device
US10768481B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 9, 2019 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | May 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A direct type backlight source, a manufacturing method thereof, and a display device are disclosed, the direct type backlight includes a light emitting module including a substrate and a plurality of light emitting units arranged on the substrate; a lens film layer positioned on a light emitting side of the light emitting module, one side of the lens film layer away from the substrate is provided with a plurality of collimating structures arranged in an array, each of the collimating structures includes at least one convex surface structure, and the plurality of collimating structures are in one-to-one correspondence with the plurality of light emitting units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.