Electronically switchable privacy device
US9500888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Mar 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1557
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electronically switchable privacy device suitable for use in display devices is described. The electronically switchable privacy device comprises a first transparent electrode layer, an electronically switchable layer disposed adjacent to the first transparent electrode layer, and a second transparent electrode layer disposed adjacent to the electronically switchable layer and opposite the first transparent electrode layer. The second transparent electrode layer comprises a transparent substrate layer having a plurality of microstructured ribs extending across a major surface of the transparent substrate layer such that the microstructured ribs form an alternating series of ribs and channels, each channel having channel walls defined by adjacent ribs. A plurality of transparent electrode members comprising a transparent electrode material are disposed on at least one channel wall in a corresponding plurality of the channels; and a bus member provides electrical connectivity across the plurality of transparent electrode members. A spacer element disposed in the electronically switchable layer keeps the first transparent electrode layer spaced apart from the second transparent ele…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.