Luminescent screens for flat image display devices

Electric lamp and discharge devices – With luminescent solid or liquid material – With gaseous discharge medium

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

313461, H01J 1749, H01J 6142

Patent

active

043520421

ABSTRACT:
A luminescent screen for flat image display devices, having improved light efficiency comprises a perforated plate (5) positioned on the inside of a luminescent screen glass (1), with the plate holes (6) extending above the individual spaced-apart luminescent areas or phosphor dots and the hole walls (6a) being provided with a metallization layer (8) and/or an extension of the luminescent layer (7) on the glass screen (1). In preferred embodiments, the plate holes are etched so that each hole is enlarged toward the front of the screen and the walls thereof assumes at least an approximately parabolical shape opening toward the glass screen and such angular walls are at least partially coated with a metal layer and/or a luminescent material layer for further improved light efficiency (FIG. 4).

REFERENCES:
patent: 2509071 (1950-05-01), Pennybacker
patent: 3619698 (1971-11-01), Caras
patent: 3845241 (1974-10-01), Schwartz
patent: 3858083 (1974-12-01), Rehkopf et al.
patent: 3934172 (1976-01-01), Okamoto
patent: 3956667 (1976-05-01), Veith
patent: 4047077 (1977-09-01), Veith
patent: 4205255 (1980-05-01), Tomita

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Luminescent screens for flat image display devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Luminescent screens for flat image display devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Luminescent screens for flat image display devices will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-401366

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.