Display element having retroreflective surface

Details Display element having retroreflective surface Display element having retroreflective surface

1998-05-29

2000-10-24

Nguyen, Chanh

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

G09G 334

Patent

active

061374601

ABSTRACT:
A pixel for use in a visual matrix display including a frame having front and rear surfaces and defining an aperture; a light source oriented in the aperture; a first retroreflective surface borne by the frame and positioned adjacent to the aperture; a flap borne by the front surface and moveable along a given path of travel between a first position wherein the pixel is nonoperational, and the flap is disposed in covering relation relative to the light source, and a second operational position, wherein the flap has a second retroreflective surface which is exposed when the flap is in the second position; an assembly borne by the frame for moving the flap along the given path of travel; and an assembly for energizing the light source when the flap is in one of the given positions along the path of travel.

REFERENCES:
patent: 1765215 (1930-06-01), Duchard
patent: 2798147 (1957-07-01), Orsatti
patent: 3267595 (1966-08-01), Levy et al.
patent: 3591721 (1971-07-01), Salam
patent: 3868610 (1975-02-01), Salam
patent: 4833806 (1989-05-01), Gars
patent: 4974353 (1990-12-01), Norfolk
patent: 5111193 (1992-05-01), Huber et al.
patent: 5231689 (1993-07-01), Reidinger
patent: 5351065 (1994-09-01), Killinger
patent: 5500652 (1996-03-01), Huber et al.

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