Retroreflective display systems configured to display images using shaped light profile
US10788743B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Oct 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosed technology generally relates to displays, and more particularly to display screens configured to display images having a shaped light profile. A display screen comprises a retroreflective display medium configured to display an image by retroreflectively reflecting incident light from a light source. The display screen additionally comprises a light profile shaping medium interposed between the retroreflective display medium and the light source. The light profile shaping medium is configured to shape an intensity distribution of light reflected from the retroreflective display medium prior to displaying the image to a viewer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.