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1. (CA2615959) ELECTROLUMINESCENT ONE-WAY VISION PANEL

Office : Canada
Application Number: 2615959 Application Date: 18.07.2006
Publication Number: 2615959 Publication Date: 25.01.2007
Publication Kind : A1
Prior PCT appl.: Application Number:GB2006002684 ; Publication Number: Click to see the data
IPC:
G09F 13/22
H05B 33/00
H05B 33/20
G PHYSICS
09
EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
F
DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
13
Illuminated signs; Luminous advertising
20
with luminescent surfaces or parts
22
electroluminescent
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33
Electroluminescent light sources
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33
Electroluminescent light sources
12
Light sources with substantially two-dimensional radiating surfaces
20
characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
CPC:
G09F 13/22
C09D 5/24
C09D 11/50
Applicants: CONTRA VISION LIMITED
Inventors: HILL, GEORGE ROLAND
PARRY, CHRISTOPHER DAVID
Priority Data: 0514642.8 18.07.2005 GB
Title: (EN) ELECTROLUMINESCENT ONE-WAY VISION PANEL
(FR) PANNEAU DE VISION UNIDIRECTIONNEL ELECTROLUMINESCENT
Abstract:
(EN) An electroluminescent (EL) one-way vision, see-through graphics panel comprises a sheet of light permeable material, typically a transparent plastic material, with a uniform electrically conductive coating. A print pattern partially covers the sheet of light permeable material, the print pattern comprising an electroluminescent ink system, to form an "EL lamp". A design is superimposed on or forms part of the print pattern, such that the design is visible from one side of the panel but is not visible from the other side of the panel. .The design can be a uniform colour but is typically a multi-colour graphic image. The EL lamp illuminates the design when subjected to an electrical current. If the light permeable material is transparent, through vision is possible from the other side of the panel through the imprinted portions of the transparent material. Typically, a dark coloured opaque mask layer, preferably black, faces in the direction of the other side of the panel, to mask the other print pattern layers and enable good through vision.


Also published as:
EP1904992JP2009502016US20090077846BRPI0612977CN101248477AU2006271435
WO/2007/010250