Image display apparatus and display control method
US6552702B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display apparatus performs color adjustment such that the emission luminances of emission substances of respective colors that emit light upon reception of electrons emitted by electron-emitting devices are controlled by controlling the electron amount emitted by the electron-emitting devices. A pulse width-modulated signal corresponding to an image signal is input to the column wiring of a display panel having an electron source with a plurality of electron-emitting devices and fluorescent substances laid out in stripes in correspondence with the respective colors. A horizontal scanning signal for driving a row wiring is input to the row wiring in synchronism with image display. The pulse width-modulated signal is driven by voltages from different power sources in units of the respective colors. The output voltages of the power sources are changed to control the driving voltages of the electron-emitting devices for irradiating fluorescent substances corresponding to the respective colors with electrons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.