Display system with image scanning apparatus

Details Display system with image scanning apparatus Display system with image scanning apparatus

1996-07-03

2000-04-18

Luu, Matthew

Computer graphics processing and selective visual display system

Display driving control circuitry

Light detection means

G09G 500

Patent

active

06052118&

ABSTRACT:
A display system comprises a display screen and drive means for scanning a picture onto the display screen in response to a video signal. Image scanning apparatus in the display system comprises photo-detection means optically coupled to the display screen for generating an image signal on detection of any light from the scanned picture reflected back into the display screen by an external article and subsequently internally reflected within the display screen. Storage means stores the image signal detected by the photo-detection means.

REFERENCES:
patent: 4379292 (1983-04-01), Minato et al.
patent: 4760389 (1988-07-01), Aoki et al.
patent: 5032828 (1991-07-01), Hirose et al.
patent: 5097324 (1992-03-01), Tanaka et al.
patent: 5416610 (1995-05-01), Kikinis
patent: 5670985 (1997-09-01), Cappels, Sr. et al.

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