Backlight module, display module, spliced display screen and display apparatus
US12353085B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 31, 2022 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | May 31, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133611
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module is provided to include a back plate, and a light source, a middle frame, a diffuser plate, an optical film layer sequentially arranged in a direction away from the back plate; a light outgoing surface of the light source faces the diffuser plate; orthographic projections of the optical film layer, the diffuser plate and the light source on the back plate overlap with each other; an orthographic projection of the middle frame on the back plate overlaps with a peripheral edge of the back plate; the middle frame is connected to the peripheral edge; the orthographic projection of the middle frame on the back plate does not overlap with that of the light source; the middle frame includes a body structure and a first support portion, which have a one-piece structure; the body structure is on a side of the diffuser plate close to the back plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.