Digitizing projection display
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 14, 2001
Grant Date -
N/A
app pub date -
Aug 23, 1993
filing date -
Aug 23, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a visual display in which a liquid-crystal matrix generates an image on a screen. (The liquid-crystal matrix acts somewhat like a 35 mm slide.) The screen contains a digitizer which detects the position of a hand-held pointer. The detected position can be reported to a computer, which is involved in generating the image. The screen can be small, as in a notebook computer, or the screen can be as large as a drafting table or chalkboard.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully