Image display apparatus
AssigneeSEOS Displays Limited
InventorJohn Robert Harding
Life of this patent
Estimating the term…
Abstract
Image display apparatus (2) comprising at least one display projector for displaying an image, signal generator means for generating a control signal for controlling the intensity of the image, modulator means (4, 6) for generating a modulation waveform for modulating the intensity of the image, and adjustor means (8, 10) for adjusting the modulation waveform to improve the performance of the modulation waveform at various image intensities, the image display apparatus being such that it uses different modulation waveforms for various image intensities, it uses a proportion of at least one modulation waveform in dependence upon the control signal, and it uses the resultant modulation waveform to modulate the control signal.
Claims9
Image display apparatus comprising at least one display projector for displaying an image, video signal generator means for generating a video control signal for the display projector, modulator means for modulating the video control signal for the display projector, modulation waveform generator means, and adjustor means for adjusting the modulation waveform for improving the performance of the modulation waveform at various image intensities, the image display apparatus being such that it uses different modulation waveforms for various image intensities, and the adjustor means being such that it selects a proportion of each modulation waveform in dependence upon the amplitude of the control signal from the video signal generator means, and it uses the resultant modulation waveform to modulate the control signal.
Dependencies are inferred from the claim text.