Switchable privacy display based on striped polarizer
US10013947B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 2, 2015 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Feb 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/403
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A computing device includes a display having a striped polarizer, the striped polarizer includes a set of sub-areas having a first polarization interspersed between another set of sub-areas having a second polarization. The sub-areas are arranged to provide an alternating polarization across a dimension of the display. The computing device may be configured to receive information specifying a privacy display mode, select a privacy display mode based upon the received information, receive input display data configured to represent information for display, generate, in response to selecting the privacy display mode, output display data by inverting a first portion of pixels in the input display data which are associated with a first polarization, and not inverting a second portion of pixels in the input display data which are associated with a second polarization, and provide the output display data to a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.