Image display screen
US8325117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2004 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Apr 5, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Image display screen suitable for displaying image frames, at a given screen scanning frequency, comprising, light emitters, circuits for addressing the emitters each comprising, a current modulator able to supply the said emitter with current during the screen display mode, a charge capacitance able to store at each image frame a potential applied to the gate electrode of the current modulator, the potential being representative of a voltage for addressing an image datum during a screen display mode. The screen comprises a control system able to apply a bias voltage to the gate electrode of the current modulator and to the said charge capacitance, during a screen standby mode of a duration greater than the duration of an image frame, the said bias voltage having a bias inverse to the bias of the potential applied to the said charge capacitance during the screen display mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.