E-ink displays with an illuminating substance between surfaces of the display screen
US9341917B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electronic ink display of a device has a set of charged pigment particles suspended within a fluid. The charged pigment particles and the fluid are positioned between a first surface and a second surface of the display. An electrical charge is able to be applied that causes the charged pigment particles to move within the fluid. Movement of the charged particles results in the charged pigment particles being rearranged to form text or images viewable through the first surface. A luminescent substance is positioned between the first surface and the second surface. When activated, the luminescent substance emits visible light that is transmitted through the first surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.