Method and apparatus for multi-gradation display
US4769713A · kind A · utility
61Cited by
11References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1987 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Feb 26, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N3/127
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a multi-gradation display method and apparatus by which a display signal formed by a picture element signal of any one of the levels of N gradations (where N is an integer equal to or greater than 3) is displayed on a display panel in which each picture element produces a two-gradation display, one frame is composed of (N-1) fields, and accordingly each picture element is supplied with a binary signal (N-1) times for each frame, and the binary signal is given one of its values by a number of times corresponding to the level value of the input picture element signal and the other value by the remaining number of times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.