Display device with disk and LED

Details Display device with disk and LED Display device with disk and LED

1998-04-24

1999-06-08

Silbermann, Joanne

Card, picture, or sign exhibiting

Changing exhibitor

Alphanumeric device

340908, 40452, G09F 937

Patent

active

059099712

ABSTRACT:
A display element has a disk which rotates on an axis to show its bright or dark side in the viewing direction. When the bright side is showing the disk allows passage of light from an LED. When the dark side is showing the disk masks the light from the LED. Preferably, an opaque shroud surrounds the LED and projects a short distance forwardly thereof to help define the cone in which light from the LED may be viewed in ON position. A side wall of said element projects forwardly of the rotation axis to mask the escape of light on that side transverse to the viewing direction. A second side wall may be placed on the other side for the same purpose or the adjacent element may provide the second wall.

REFERENCES:
patent: 4531318 (1985-07-01), Chang et al.
patent: 4577427 (1986-03-01), Browne
patent: 4860470 (1989-08-01), Browne
patent: 4974353 (1990-12-01), Norfolk
patent: 5005305 (1991-04-01), Turney et al.
patent: 5021773 (1991-06-01), Browne
patent: 5022171 (1991-06-01), Norfolk et al.
patent: 5050325 (1991-09-01), Browne
patent: 5055832 (1991-10-01), Browne

Affiliated with

Also associated with

Rating

Display device with disk and LED does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device with disk and LED, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device with disk and LED will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1680102