Backlight module having reflective index adjustment material, method for preparing the same, method for driving the same, and display device
US11340481B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 26, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/856
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure provides a backlight module, a method for preparing the same, a driving method and a display device. The backlight module includes a backlight source and a light guide structure arranged on a light emitting surface of the backlight source; the backlight source includes a substrate and a plurality of light emitting units arranged on the substrate at intervals; the light guide structure includes a first medium layer and a second medium layer, the first medium layer includes a plurality of first medium structures corresponding to the plurality of light emitting units respectively, and an orthogonal projection of each light emitting unit on the substrate is located within an orthogonal projection of a corresponding first medium structure on the substrate; and the second medium layer includes a plurality of second medium structures, the plurality of second medium structures and the plurality of first medium structures are arranged alternately.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.