Liquid crystal displays
US4117472A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1977 |
| Grant date | Sep 26, 1978 |
| Priority date | — |
| Expiry date | Feb 11, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/3622
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid crystal display device comprising a plurality of liquid crystal elements each having a respective pair of electrodes which are connected in matrix formation for control purposes. Electrodes on one side of the elements are connected in "rows" and electrodes on the other side of the elements are connected in "columns" so that intersections define an element uniquely while reducing the number of control terminals. The "rows" may be formed as a sinuous array crossing and recrossing an elongate array formed by the "columns" so that the display provides a linear progressive illuminable display area. Control signals may be variable in phase, and/or frequency and/or amplitude to effect appropriate selective activation of the elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.