Display apparatus
US6295042A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 5, 1997 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Jun 5, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display apparatus, such as a liquid crystal display apparatus, is constituted by: a display unit including electrodes arranged in a matrix form, a circuit for generating a signal waveform applied to the electrodes of the display unit, and a low-pass filter for removing a frequency component exceeding a prescribed frequency from the signal waveform to inlet ends of the electrodes in the display unit. As a result, the occurrence of a large transient current liable to flow at pixels close to inlet ends of the display unit can be suppressed. The removal of such a high-frequency component may also be performed by superposing split pulses with a resin and a falling portion of a drive signal waveform and by integrating the superposed drive signal waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.