Lens film with conductive lens layer or conductive layer
US6577358B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1998 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Jun 28, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens film including a transparent substrate film and a concave or convex lens layer provided on a side of the substrate film. The lens layer contains a resin composition with conductive fine particles dispersed therein and has a surface resistivity of not more than 1012 &OHgr;/□. Another embodiment is a lens film including a transparent substrate film, a conductive layer provided on a side of the substrate film, and a concave or convex lens layer provided on the conductive layer, the conductive layer having a surface resistivity of not more than 1012 &OHgr;/□. The lens film can be part of a surface light source where the light-receiving side of the lens film is disposed on the light outlet side. The surface light source can be part of a liquid crystal display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.