Light control material for displaying color, information, and images
US9063274B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Dec 11, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light control material for displaying a color image. The light control material includes a material body including a plurality of microstructures. The microstructures are designed to produce an additive color perception of one or more colors and designed to reveal an image when the intensity of light reflected from a selected number of the microstructures is modulated. The selected microstructures can be modulated by one or more of modifying, obliterating, obscuring or covering up the selected microstructures. In one embodiment, the microstructures, prior to modulation of the selected number of microstructures, produce a uniform white additive color perception.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.