Backlight module and display device
US11762235B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/01791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module and a display device are disclosed. The backlight module includes a light emitting element array including a plurality of light emitting elements that emit blue light; a quantum dot film disposed on a light-emergent side of the light emitting element array and having a middle area and an edge area, the edge area surrounding the middle area; and a light conversion layer disposed on the light-emergent side of the light emitting element array, wherein an orthographic projection of the light conversion layer on the quantum dot film is located in the edge area of the quantum dot film, a material of the light conversion layer includes a first light conversion material configured to emit red light under excitation of light from the light emitting element and a second light conversion material configured to emit green light under excitation of light from the light emitting element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.