Flat screen display system using two-dimension surface...

Details Flat screen display system using two-dimension surface... Flat screen display system using two-dimension surface...

G - Physics

09

G

375/47

G09G 3/00 (2006.01) H04N 3/10 (2006.01)

Patent

CA 1174774

ABSTRACT OF THE DISCLOSURE A flat screen display system using a two-dimension surface acoustic wave (SAW) scanning wherein the flat screen is made of a piezoelectric substrate coated with a layer of piezoluminophor powder, four SAWs having two by two nonparallel directions being launched along the piezoelectric surface, the first two SAWs being pulsed, the third one having a constant amplitude and the fourth one being modulated by the information to be displayed, the pulsed SAWs being with respect to the modulated SAW launched with a delay that is determined by the distance to be covered by the modulated SAW for reaching the point which the current modulation corresponds to.

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