Apparatus for and method of driving elements, apparatus for and method of driving electron source, and image forming apparatus
US6236167A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for driving an electron emission element driven by two different potentials applied thereto includes a scanning drive circuit for applying a first potential to the electron emission element, a modulating drive circuit for applying a second potential to the electron emission element, and a timing control circuit for providing a delay time following application of the first potential in order to delay application of the second potential. The delay time is set to be longer than a time required for the damping of a ringing waveform, which is produced by application of the first potential, to 1% of the applied voltage. This makes it possible to reduce the effects of the ringing phenomenon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.