Backlight module including angular deflection film and display device including the same
US12321062B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Oct 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0075
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight module and a display device are provided in the present application. In the backlight module, alight modulation surface of the annular light modulation portion is connected to an end of a corresponding light incident surface away from a physical center, and in a direction from the physical center to the annular light modulation portion, a degree of an acute angle between the light modulation surface and the light incident surface is sequentially increased; or, a light modulation surface corresponding to the annular light modulation portion is connected to an end of a corresponding light incident surface near the physical center, and in the direction from the physical center to the annular light modulation portion, the degree of the acute angle between the light modulation surface and the light incident surface is sequentially increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.