OBJECT OF THE INVENTION
This invention refers to an emblem such as a flag, coat of arms or
similar figure formed by a thin laminar body which includes luminous motifs on
part or the entire surface of this sheet. It may be complemented by a mast type
supporting component, a wire for hanging or means of gluing or adhering it on
BACKGROUND OF THE INVENTION
Emblems such as flags, coats of arms or similar figures are usually
printed on a flexible laminar component, which is often a piece of cloth. They
are only visible when located in lighted areas. If one would like such an emblem
to be visible in the dark, light emitted by an external lighting source must be
projected on the emblem. This involves significant energy consumption.
DESCRIPTION OF THE INVENTION
The emblem with luminous motifs, object of this invention, is formed
by a thin sheet that displays a series of specific qualities as regards construction
that allow lighting of all or part of its surface with minimum energy consumption.
For such purposes, the different motifs of the emblem are printed
with chemical ink which lights up when electric power is supplied.
In accordance with the invention, the emblem has a laminar body formed
by a thin sheet of transparent material, with a thickness of approximately 0.15
mm. The representative motifs of the emblem involved are printed on this sheet,
with reserves in those areas set aside for the luminous motifs, a layer of transparent
conductive ink, a layer of electroluminescent phosphor applied on the areas or
motifs to be lighted, an initial layer of silver-based conductive ink, a layer
of dielectric polymer, a second layer of silver-based conductive ink, a layer
of nonconducting ink and a base layer of white paint where the representative motifs
of the emblem are printed.
On an optional basis, the laminar body may be associated with a mast
type support or equipped with a wire for hanging or other means which allow it
to be secured or glued on a surface.
Those motifs or areas of the emblem which will not be lighted are
printed on the sheet of transparent material with conventional ink, leaving the
aforementioned reserves in those areas of the emblem set aside for the luminous
The layer of electroluminescent phosphor is placed between the layer
of transparent conductive ink and the first layer of silver-based conductive ink
so that when low-amperage current is supplied to the layer of electroluminescent
phosphor, this will light up and will be visible through the reserves defined
in the sheet of transparent material.
The layer of transparent conductive ink is applied on the areas set
aside for the luminous motifs, in the same areas as the reserves indicated by
the printing on the transparent sheet. The layer of transparent conductive ink
is applied between the reserves on the sheet of transparent material and the layer
of electroluminescent phosphor in order to ensure the visibility of the light given
off by the latter when a low-amperage electric current is supplied.
The layer of transparent conductive ink is electrically connected
to a second layer of silver-based conductive ink.
The two layers of silver-based conductive ink are each equipped with
feed tracks so that they can be connected, by the appropriate switch, either to
batteries or to a low-amperage power source. Provisions may be made for the latter
in the mast, for example, or by including a cable or connector which can be connected
to an external power source.
The layer of electric polymer placed between the two layers of silver-based
conductive ink is meant to prevent contact between these layers and, therefore,
the short-circuiting of the power source.
As mentioned previously, a base layer of white paint and a layer
of nonconducting ink are applied on the second silver-based conductive layer. The
representative motifs of the emblem are printed on the back surface of the aforementioned.
These layers aim to ensure that the user does not involuntarily come into contact
with the second layer of conductive ink. They also allow viewing of the representative
motifs of the emblem printed on the back side of the sheet. Of course, this does
not refer to the luminous areas, since these are only visible from the front of
the emblem through the reserves or non-printed areas of the sheet of transparent
DESCRIPTION OF THE DRAWINGS
To complement this description and facilitate understanding of the
characteristics of the invention, a set of drawings are attached to this description.
These drawings, which have been provided as a non-exhaustive illustration, represent
PREFERRED EMBODIMENT OF THE INVENTION
- Figure 1 shows an elevation view of an example of construction of the emblem
with luminous motifs. This example represents a flag with a mast equipped with
batteries as a power source.
- Figure 2 shows a variant of construction of the emblem represented in Figure
1. In this case, the mast is equipped with an electric cable for connection to
an external power source.
- Figure 3 shows a perspective view of the different layers which form the laminar
body of the examples in the previous figures.
As can be observed in the example of construction shown in the figures,
the emblem with luminous motifs, object of the invention, is represented by a
laminar body -2- associated with a mast type supporting component -1-.
This laminar body -2- is formed by a transparent PVC sheet, with
an approximate thickness of 0.15 mm. The representative motifs -31- of the emblem
involved are printed on the aforementioned sheet. The areas or reserves -32- where
the luminous motifs are located are not printed.
The following are applied on the back side of the transparent sheet
-3-: a layer -4- of transparent conductive ink, a layer -5- of electroluminescent
phosphor located on the areas or motifs to be lighted, an initial layer -6- of
silver-based conductive ink, a layer -7- of dielectric polymer, a second layer
-8- of silver-based conductive ink, a layer -9- of nonconducting ink and a base
layer -10- of white paint. The representative motifs -31- of the emblem are printed
on the back surface of the aforementioned. The layers -6-, -8- of silver-based
conductive ink are each equipped with feed tracks -61-, -81- for connection to
a switch -12- which controls the supply from a low-amperage power source that can
be switched on or off.
On an optional basis, this power source may be formed by some batteries
included in the supporting component -1- or may be external. In the latter case,
the supporting component -1- must be equipped with a cable -11- which, through
the appropriate transformer -13-, connects the emblem with luminous motifs to
the electric current or to any other type of electrical generator.
With this configuration, when the switch -12-is activated and allows
input of power to the emblem, the layer -5- of electroluminescent phosphor is
lit and is visible through the areas on the sheet -3- where the motifs -31- have
not been printed. Specifically, these are the same areas as those with the reserves
Following sufficient description of the nature of the invention,
as well as an example of the preferred embodiment, it is hereby recorded for all
appropriate purposes that the materials, shape, size and arrangement of the components
described may be modified, whenever such does not require a change in the essential
characteristics of the invention claimed hereafter.