Internal optical isolation structure for integrated front or back lighting
US7855827B2 · kind B2 · utility
26Cited by
149References
61Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2006 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Nov 8, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3466
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical isolation structure is incorporated into a display between the display elements and the transparent substrate for the display elements. The optical isolation structure reflects light rays within the substrate that impact the structure at high angles relative to normal to the structure, thereby permitting the substrate to be used as an integrated light guide for distributing light over the display from a light source on the edge of the substrate. The optical isolation structure may include a single layer having an index of refraction less than the substrate or a plurality of thin-film interference layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.