Patent
1989-01-04
1991-02-05
Arnold, Bruce Y.
90546, G02F 113
Patent
active
049899562
ABSTRACT:
A light emitting panel is formed of a transparent plastic substrate doped with fluorescent dye which absorbs incident light through a relatively large surface area and emits light of a longer wavelength out through one edge. The incident light may be ambient or produced by a fluorescent light source. The edge emitted light is optically coupled into an edge of a display panel, which may be a polymer dispersed liquid crystal display or a plastic panel having a display surface formed with an etched or printed pattern, grating or hologram. The substrate materials of the emitting and display panels, as well as an optical adhesive which joins the edges thereof, preferably have an essentially similar index of refraction which is larger than that of air causing light propagating through the panels to be internally reflected and exit the structure only through the pattern on the display surface. The display panel is preferably transparent in the absence of light incident on the emitting panel, and produces a display visible from only one direction upon application of incident light. The display panel may be constituted as a center-high-mounted stop light for an automotive vehicle.
REFERENCES:
patent: 4165930 (1979-08-01), Matsumoto
patent: 4285889 (1981-08-01), Parsons
patent: 4688900 (1987-08-01), Doane et al.
patent: 4697365 (1987-10-01), Moosbrugger et al.
patent: 4703572 (1987-11-01), Chapin
patent: 4728547 (1988-03-01), Vaz et al.
patent: 4838661 (1989-06-01), McKee
patent: 4892369 (1990-01-01), Moss
G. Baur et al., "Fluorescence-Activated Liquid-Crystal Display", Applied Physics Letters, vol. 31, No. 1, Jul. 1, 1977, pp. 4-6.
S. Sato et al., "Multicolor Fluorescent Display by Scattering States in Liquid Crystals", J. Appl. Phys. 52(6), 1981, pp. 3941-3948.
A. Goetzberger et al., "Solar Energy Conversion with Fluorescent Collectors", Applied Physics 14, 1977, pp. 123-139.
"A Little Light Goes a Long Way with Lisa", Mobay Corp. Marketing Document.
"Light-Collecting Plastics-A Brilliant Idea", Provisional Information Sheet, Mobay Corp.
Steven Ashley, "Razzle-Dazzle Plastic", Popular Science, pp. 100-101.
Applied Physics Letters, vol. 31, No. 1, Jul. 1, 1977, (American Institute of Physics), G. Baur et al., "Fluorescence-Activated Liquid-Crystal Display", pp. 4-6.
Hsu Tsung Y.
Lackner Anna M.
Smith, Jr. Willis H.
Wu Wei-Yu
Arnold Bruce Y.
Coble P. M.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
LandOfFree
Visual display device with fluorescent dye-doped edge-illuminati does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Visual display device with fluorescent dye-doped edge-illuminati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Visual display device with fluorescent dye-doped edge-illuminati will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-6777