Stereographic liquid crystal display employing switchable liquid crystal materials of two polarities in separate channels
US6020941A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1998 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Feb 12, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/324
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereographic liquid crystal display (LCD) and various methods of manufacturing and operating such stereographic LCD. In one embodiment, the LCD includes: (1) first and second substrates having a cell wall structure located in an interstice therebetween that defines first and second sets of independent cells in the LCD; (2) a first controllable liquid crystal (CLC) material located in the first plurality of independent cells, the first CLC material selectively exhibiting an "on" state and an "off" state and having a first polarity when in the "on" state; and (3) a second CLC material located in the second plurality of independent cells, the second CLC material selectively exhibiting an "on" state and an "off" state and having a second polarity when in the "on" state. The first and second CLC materials are selectively driveable to cause the LCD to present a stereogram to a viewer when viewed through first and second polarizing lenses having polarities corresponding to the first and second polarities of the first and second CLC materials, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.