Display device having front illuminator with turning features
US8872085B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2007 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/001
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In various embodiments described herein, a display device includes a front illumination device that comprises a light guide disposed forward of an array of display elements, such as an array of interferometric modulators, to distribute light across the array of display elements. The light guide panel may include a turning layer to deliver uniform illumination from a light source to the array of display elements. For many portable display applications, the light guide panel comprises the substrate used in fabricating the display elements. The light guide panel may include additional films as well. The light guide panel, for example, may include a diffuser and/or an optical isolation layer to further enhance the optical imaging characteristics of the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.