FR2954567A1 - Lighting panel for flat, cylinder or cubic decorative lighting structure, has synchronizing unit synchronizing unitary lighting effects of slave moderators and juxtaposition of unitary lighting effects for obtaining global lighting effect - Google Patents

Abstract

The panel has LEDs (2) fixed on a electronic card (20) arranged at an interior of a frame (1), where the LEDs are uniformly arranged at an interior of the frame in a manner to form all or part of a lighting screen. The LEDs are arranged on the electronic card in a manner so that the each LED is visible from two sides of the panel. A synchronizing unit synchronizes unitary lighting effects of slave moderators (3) and juxtaposition of the unitary lighting effects for obtaining global lighting effect visible from the two sides of panel.

Description

LUMINOUS PANEL FORMING A VISIBLE SCREEN ON BOTH SIDES Description Technical Field of the Invention

The invention relates to a light panel forming a visible screen on both sides. The invention also relates to a luminous decorative structure formed by the assembly of such panels.

It concerns the technical field of decorative structures that can be used day or night, temporarily or permanently. The invention applies particularly, but not exclusively to decorations intended to be fixed indoors on a dedicated support or outside on a pole, a facade or crossing the street. State of the art The light panels are well known from the prior art. They are typically formed of a rigid frame inside which are distributed light sources.

For example, US Pat. No. 5,769,527 (TAYLOR) discloses a horizontal frame fixed to the pole end and on which movable spotlights are arranged so as to illuminate a scene. If the frame disclosed in this document allows to obtain light effects particularly - 2

complex, it is absolutely not suitable to form a bright screen visible on both sides.

Decorative panels are also known formed of a frame inside which are arranged light garlands forming decorative patterns (stars, firs, balls, flakes, etc.). These decorative panels are particularly bulky but fixed on a pole, on a facade or crossing the street, we obtain particularly attractive luminous decorations visible on each side of said panels. However, it is generally not possible to vary the light effects on this type of panel and the juxtaposition of light strings does not form a bright screen.

Faced with this state of affairs, the main objective of the invention is to propose a new luminous panel forming a luminous screen visible on both sides, particularly attractive, and on which a large number of light effects can be created.

Disclosure of the invention. The solution proposed by the invention is a luminous panel formed of a frame inside which light sources are arranged, said panel being remarkable in that: the light sources are LEDs fixed on at least one electronic card arranged inside the frame, the LEDs are uniformly distributed inside the frame so as to form all or part of a luminous screen, the LEDs are arranged on the electronic board so that each LED is visible on both sides of the panel and therefore that the light effect is visible on both sides, - 3

slave animators control the sequential illumination of one or more LEDs independently so that each slave animator creates a unitary luminous effect, a means of synchronization synchronizes the unitary luminous effects of the slave animators, the juxtaposition of said effects. luminous units to obtain a global luminous effect visible on both sides of the panel. The particular arrangement of the LEDs not only makes it possible to obtain a perfectly identical visible light effect on both sides of the panel, with a minimum of components, but also to obtain a relatively flat luminous screen whose thickness is only determined. by the dimensions of the LEDs used and / or those of the frame: each LED illuminating each side of the screen. The connection of the LEDs to the slave animators also makes it possible to obtain a large number of particularly complex and attractive light effects.

According to a preferred feature of the invention for synchronizing the unitary light effects by limiting the number of information passing between the control member, the slave animators and the LEDs: the slave animators comprise a memory in which several effects are recorded; selectable luminous units for switching on and off the LEDs to which they are connected according to different arrangements, - a control element controls the slave animators so as to select one of the unitary light effects recorded in their memory, - the slave animators are connected by a communication line allowing them to interact with each other to synchronize the unit light effects selected by the control member, the juxtaposition of said unitary light effects to obtain the overall light effect. 2954567 -4

In an alternative embodiment for synchronizing the unitary light effects, a control member transmits information enabling the slave animators to execute a unit light effect, said information being transmitted periodically to each of said slave animators so as to synchronize the whole unit. unitary light effects.

The controlling body may be one of the slave animators commanding the other slave animators, or a master animator placed in the frame and commanding the slave animators, or a master animator 10 outside the frame and remotely commanding the slave animators. .

In order to improve the quality and to make the overall luminous effect produced by the panel more complex, each slave operator can control the lighting of a LED or a group of LEDs, preferably of a group of four monochrome or multi-chromed LEDs. said LED or group of LEDs forming a video pixel.

According to a preferred embodiment, the LEDs are fixed on electronic boards arranged parallel to the inside of the rigid frame. The LEDs are then arranged in the extension of the electronic cards and protrude from the longitudinal edges of the latter so as to be visible on both sides of said cards.

In an alternative embodiment, the LEDs are fixed on a single electronic card arranged inside the rigid frame. In this case, the electronic card comprises perforations vis-à-vis which are arranged the LEDs so that the latter are visible from both sides of said card. 2954567 -5

In another variant embodiment, the LEDs are fixed on electronic boards arranged parallel to the inside of the rigid frame. The electronic cards then have perforations with respect to which the LEDs are arranged so that the LEDs are visible on both sides of said cards.

In other embodiments having an arrangement of the electronic card or cards similar to the two previous variants, the LEDs are arranged on either side of the electronic card or cards (20) so that the effect light is visible from both sides of said or said cards.

According to an advantageous characteristic of the invention making it possible to obtain a first visible decorative pattern by day and a second luminous decorative pattern visible at night, said second pattern possibly being different from said first pattern: the frame is covered with a cloth on which is shown a decorative pattern on each side of said panel, said pattern being visible by day in natural light, said fabric covering the LEDs and the electronic card, 20 - the fabric has perforations to let the light emitted by the LEDs pass through when they are on.

The electronic board is preferably resinated, so that the electronic components that it supports, including the lugs of the LEDs, are protected by resin.

Another aspect of the invention relates to a decorative light structure formed of a plurality of light panels in accordance with one of the preceding features, said panels being assembled to form a flat or volume structure.

Description of the figures.

Other advantages and characteristics of the invention will appear better on reading the description of a preferred embodiment which follows, with reference to the accompanying drawings, made by way of indicative and non-limiting examples and in which: FIG. 1 is a diagrammatic view showing in perspective a preferred embodiment of the light panel according to the invention where several electronic cards are used; FIG. 2 is a partial enlarged view of the panel of FIG. 1, showing the arrangement LEDs on an electronic card, - Figure 3 is a sectional view along AA of the electronic card shown schematically in Figure 2, - Figure 4 is a schematic view showing in perspective another embodiment of the light panel according to the invention where a single electronic card is used, - Figure 5 is a partial enlarged view of the panel of Figure 1, showing the arrangement of the LEDs on the FIG. 6 is a sectional view along BB of the electronic card shown schematically in FIG. 5; FIG. 7 is a cross-sectional view of a panel according to the invention, the frame being closed by FIGS. plates, - Figure 8 is a cross-sectional view of a panel according to the invention, the frame being covered with a perforated canvas, - Figure 9 is a schematic perspective view showing a third embodiment of the panel. 5 is a partial enlarged view of the panel of FIG. 1 according to CC, showing the arrangement of the LEDs on the electronic board, - 6 - 7

FIG. 11 is a sectional view along DD of the electronic circuit diagram shown in FIG. 10; FIG. 12 is a sectional view along CC of the electronic circuit diagram shown in FIG. 5; FIG. 13 is a view in FIG. cross section of a panel according to the invention, the frame being closed by plates, - Figure 14 is a cross-sectional view of a panel according to the invention, the frame being covered with a perforated sheet, FIG. 15 schematizes an arrangement of the LEDs, the slave animators and the control device, FIG. 16 schematizes another arrangement of the LEDs, the slave animators and the control element, FIG. overall luminous light obtainable with a panel according to the invention, - Figure 18 illustrates another overall light effect may be obtained with a panel according to the invention.

Embodiments of the invention

Referring to Figure 1, the light panel object of the invention is formed of a frame 1 within which are arranged light sources 2. The frame 1 is intended to be fixed vertically on a pole, a facade , or crossing the street. It is also possible to position the frame 1 on a suitable support enabling it to be positioned vertically in a room. It can be provided to assemble different panels according to the invention so as to form a decorative light structure plane or volume (cube, cylinder, ...).

The frame 1 is made of steel, aluminum or a rigid plastic material. In practice, it consists of hollow metal sections 2954567 -8

welded together a few millimeters or centimeters thick. In the case where a plastics material is used, a molding process can be envisaged. Referring to Figure 1, the frame 1 preferably has a rectangular shape having a length L and a height H between a few tens of centimeters and one or two meters. Square, polygonal, circular, oval, curved or other shapes may be provided.

According to the invention, the light sources 2 are LEDs (or light-emitting diodes) fixed on at least one electronic card 20 arranged inside the frame 1. The LEDs 2 used operate at very low voltage, typically at 12 volts 24 volts, but also 230 volts, which allows to mount directly on the power grid. Conventionally, they comprise an anode and a cathode connected by a `micro-filament 'supplying a light emitting electronic chip during the passage of the current between said anode and said cathode. These LEDs further comprise a transparent cylindrical envelope, protecting the anode, the cathode and the micro-filament. This cylindrical envelope, colored or transparent, can be surmounted by a transparent convex hemispherical dome extending upwards. However, it is preferred to use LEDs having a concave concave concave dome extending downwardly. This conical concavity has the effect of diffusing the light almost multidirectionally, with a solid angle of the order of 360 ° which helps to improve the light effect produced. However, any type of LEDs known to those skilled in the art could be used (through LEDs, SMD LEDs, power LEDs, etc.).

With reference to FIG. 1, the LEDs 2 are uniformly distributed inside the frame 1 so as to form a luminous screen or a part of a luminous screen (in the case where any object is also disposed at 30 inside the frame). Preferably, approximately 1600 LEDs 2 are provided for a frame 1 having an area of approximately 1 m2. The concentration of LEDs 2 can 2954567 -9

however, be higher or slightly lower. To optimize the quality of the luminous effect produced, the number of LEDs 2 is between 500 LEDs / m2 and 3500 LEDs / m2.

In the embodiment shown in FIGS. 1 to 3, the LEDs 2 are fixed on a plurality of electronic cards 20 arranged in a parallel manner inside the frame 1, said cards forming columns. These electronic cards 20 have a generally parallelepipedal shape of small thickness: their width may be a few centimeters and their thickness of a few millimeters. The term "electronic card" is understood to mean any medium known to those skilled in the art (rigid, flexible, wired printed circuit, etc.). In the embodiment shown in FIGS. 1 to 3, their length substantially corresponds to the height H of the frame 1. However, it would be possible to arrange the cards 20 in the direction of the length of the frame 1, in which case they would form rows and their length would correspond substantially to the length L of said frame. According to the dimensions of the frame 1 and referring more particularly to Figure 2, it is possible to join two or more cards 20 which are connected to each other by means of a conventional connection tab. The ends of the cards 20 are inserted into notches or rails provided inside the frame and are held in position by gluing, welding, screwing, etc.

The cards 20 comprise a front face, a rear face and a slice located on its periphery. The LEDs 2 are fixed on one of the faces of the cards 25 or directly on their edge at the longitudinal edges. These can include one or more recesses within which the bodies of the LEDs 2 take place. Referring to Figures 2 and 3, the LEDs 2 are arranged in the extension of the cards 20 and protrude longitudinal edges thereof so as to be visible from both sides 30 of said cards. It is therefore not useful to fix the LEDs 2 on each side of the cards 20 so that each side of the panel is illuminated. In practice, it is the 2954567 -10-

LED luminous body 2 which extends beyond the longitudinal edges of the cards 20. The bodies of the LEDs 2 are preferably oriented parallel to the surface of the cards 20 but they may have a certain inclination. The electronic boards 20 also support other electronic components such as integrated circuits, transistors, potentiometers, resistors, coils, capacitors, or slave animators 3 which will be described in more detail in the following description. .

The LEDs 2 may be arranged in a single column disposed at one of the two longitudinal edges of the cards 20 or in two columns each disposed at one of said two longitudinal edges. The space separating the adjacent LEDs 2 of the same column may or may not be constant. The two columns may or may not have the same number of LEDs, be arranged symmetrically or shifted, and so on. In order to assemble the LEDs 2 on the electronic boards 20, their pins are first fixed on one of the faces of said boards. The pins are fixed near one or both longitudinal edges of the cards 20. The pins are then folded so that the body of the LEDs 2 is disposed in the extension of the cards 20 and protrudes beyond the longitudinal edges thereof. In practice, the pins are bent at about 90 °. The LEDs 2 could directly integrate bent pins so that the assembly is reduced to their assembly on one of the faces of the cards 20.

In the variant embodiment shown in FIGS. 4 to 6, all the LEDs 2 are fixed on a single electronic card 20 disposed inside the frame 1. This single card 20 fills all or part of the inside of the frame 1 Its attachment to the frame 1 is similar to that described above. Referring to Figures 5 and 6, the card 20 has perforations 200 vis-à-vis which are arranged the LEDs 2 so that the latter are visible from both sides of said card. The 2954567 -11-

perforations 200 have dimensions slightly greater than those of the body of the LEDs 2 so as not to hinder the scattering of light. The LEDs 2 are arranged in several parallel columns on the card 20. The space separating the adjacent LEDs 2 of the same column may or may not be constant. The different columns may or may not have the same number of LEDs, be arranged symmetrically or shifted, etc. The assembly of the LEDs 2 on the card 20 is made in the same way as that described in the previous paragraph.

In another embodiment not shown, the LEDs 2 are fixed on several electronic cards forming parallel series inside the rigid frame 1. This configuration of the cards is similar to that shown in Figure 1. The electronic cards comprise perforations vis-à-vis which are arranged the LEDs 2 so that they are visible from both sides of said cards. The perforations are similar to those shown diagrammatically in FIGS. 5 and 6. In other embodiments, the LEDs 2 can be fixed on either side of a single electronic card 20, or on both sides of the card. A plurality of electronic boards 20 as diagrammatically shown in FIGS. 9 to 14. With reference to FIGS. 3, 6, 11 and 12, the electronic board or boards 20 are preferably resinated, so that the electronic components that they support, including the tabs of the LEDs 2 are protected by the resin 2000. For example, the cards 20 may be coated with epoxy resin or polyurethane so as to protect the various components and protect the users against possible electric shocks. With reference to FIGS. 7 and 13, the frame 1 can be closed by transparent or translucent plates, colored or not, and between which are positioned the LEDs 2 and the card or cards 20. These plates 10, made of glass 2954567 -12-

or plastic, have a dual function. The first is to form a closed enclosure around the various electrical components so as to protect them from shocks and / or external aggression (rain, wind, ...) and protect users against possible electric shocks. The second function is to hide the card (s) 20 and the LEDs 2 so that only the light effect is directly visible. The aim is that a person looking at the panel object of the invention observes mainly the light effect produced without being able to distinguish precisely the different components arranged inside the frame 1. Referring to an embodiment variant shown in FIGS. FIGS. 8 and 14, the frame 1 may be covered with a fabric 11 covering the LEDs 2 and the electronic card or cards 20. In practice, the fabric 11 is a fabric or a flexible sheet stretched around the frame 1 and on which is presented a decorative pattern on each side of the panel. The decorative motif can evoke a character, a landscape, an object (star, tree, bell, ...), an advertising message or any other text. The decorative pattern is reproduced on the canvas 11 by printing or by any other equivalent method adapted to the nature of said canvas. The fabric 11 has perforations 110 arranged at the contours of the decorative pattern or arranged on almost all of its surface and allowing the light emitted by the LEDs 2 to be let out when they are turned on. In practice, the perforations 110 are circular openings made in the fabric 11, from a few micrometers to a few millimeters in diameter. In an alternative embodiment, the perforations 110 correspond to meshs of a net-like fabric or tarpaulin, said meshes being sufficiently loosened to allow the light emitted by the LEDs 2 to pass through. The perforations 110 are advantageously configured in such a way to be hardly visible by day to a person at a reasonable distance from the panel (a few meters), which has the effect of preserving the integrity of the decorative pattern shown on the canvas 11. In the event that the 2954567 -13 -

perforations 110 are arranged at the contours of the decorative pattern, it can be provided between 5 and 10 perforations / cm, said perforations having a diameter of between 1 mm and 5 mm. In the case where the perforations 10 are disposed on almost the entire surface of the fabric 11, it can be provided between 5 10 and 15 perforations / cm 2, said perforations having a diameter of between 1 mm and 5 mm. Despite the presence of these perforations, a person at a reasonable distance from the panel can distinguish quite clearly the decorative pattern. By "substantially all" is meant within the meaning of the present invention 10 the possibility that some parts of the surface of the fabric 11 are not perforated, such as the borders of the frame 1, the surroundings of the attachment points, etc. In practice, the dimensions and the number of perforations 110 vary according to the effect of transparency and / or the desired illumination. By day and thanks to natural light, a person looking at the sign sees the decorative pattern shown on the canvas 11. At night, the decorative pattern disappears in favor of the light effect generated by the LEDs 2.

According to the invention, and as shown in the appended figures, slave animators 3 control the sequential ignition of one or more LEDs 2 independently so as to create a unitary luminous effect. The slave animators 3 are in the form of a programmable logic circuit of the integrated circuit, microcontroller, microprocessor or other type, assembled on the electronic card 20. Each slave facilitator 3 can supply the LEDs independently and sequentially. 2 to which it is connected, which makes it possible to produce various unitary light effects In FIGS. 1 and 3, each slave animator 3 makes it possible, for example, to light a portion of a column of LEDs 2.

In order to improve the quality of the luminous effect produced, each slave animator 3 can control the lighting of an LED or a group of LEDs, preferably a group of four monochrome or multi-color LEDs 2954567 - 14 -

chroms, said LED or said group of LEDs forming a video pixel. For example, each slave animator 3 may be connected to a red LED, a green LED, a blue LED and possibly a white LED which are contiguous to one another so as to obtain a pixel of the RGB (+ white) type. The slave animators 3 are connected to the electrical network via a power supply line that also supplies the other components present on the electronic boards 20. This power supply line may include a transformer capable of changing the input voltage of the power supply. local electrical network 10 of about 230 volts at an output voltage of about 24 volts, 12 volts, or any other output voltage adapted to the electronic components assembled on the electronic boards 20.

Each unitary luminous effect can be broken down into a series of ordered periodic illuminations of the LEDs 2 grouped into cycles and capable of being repeated at infinity. During a cycle, a slave animator 3 turns on and / or off successively either zero, or one or more LEDs 2 in a precise order corresponding to the desired unit light effect. Each cycle consists of a predetermined number of periods T associated with an action 20 (turn on and / or turn off one or more LEDs 2), or a time delay (the state of the LEDs remains unchanged during this period).

Synchronization means makes it possible to synchronize the unitary luminous effects, the juxtaposition of said unitary luminous effects making it possible to obtain an overall visible light effect on both sides of the panel. By "synchronization" is meant the action of coordinating together the unitary light effects of the different slave animators 3 as a function of time. Thus, the different unitary luminous effects of each slave facilitator can be executed at the same time, one after the other or in a very particular order according to the position of the LEDS that it controls. 2954567 -15-

Examples of global lighting effects are shown diagrammatically in FIGS. 17 and 18 and in which each drawing corresponds to the illumination of the different LEDs at different periods Ti, T2, T3 and T4 of a cycle. The lit LEDs are black. In Fig. 17, a light disc is seen which is growing from the center of the panel outwards. In Figure 18, there is a luminous diamond that moves zig-zag from the top of the panel all the way down. By independently observing each column of LEDs 2, it can be seen that some of said LEDs are lit and others are not, the position of the LEDs which are lit changing during the different periods Ti, T2, T3 and T4 of a cycle: c is a unitary luminous effect. By synchronizing the unitary light effects of each column, an overall luminous effect is obtained, which appears clearly in FIGS. 17 and 18.

First technique for synchronizing unit light effects.

According to a preferred embodiment, each slave animator 3 comprises a memory in which several selectable unitary light effects are recorded which make it possible to turn on, to dim and to turn off in different arrangements the LEDs to which it is connected. This memory can for example be a RAM, ROM, PROM, EPROM, EEPROM, ..., and within which the different unit light effects are stored in the form of programs. The slave animators 3 are preferably programmable so that they can modify and / or delete and / or add unitary light effects in their memory.

Referring to FIGS. 1 and 3, a controller 30 transmits one or more information including codes for activating the slave animators 3 to execute one of the unit light effects 30 stored in their memory. The control organ 30 may be one of the slave animators 3 which controls the other slave animators, or a 2954567 -16-

master animator arranged in the frame 1 and controlling the slave animators 3, or a master animator disposed outside the frame 1 and remotely controlling the slave animators 3. In practice, the control member 30 comprises a programmable logic circuit of the circuit type integrated, microcontroller, microprocessor, or other, possibly disposed in a housing provided with a screen and a keyboard. The control member 30 may also consist of a fixed or portable computer. The information transmitted by the control device 30 passes via a command line 300 connected to each of the slave operators 3. This command line 300 may be of the wired type, Bluetooth, Wifi, IR, etc.

The slave animators 3 receive the control information and analyze it. The codes contained in this information activate a computer application (program, software) integrated in each of the 15 slave animators 3 and for selecting in the memory and then to implement the corresponding light effect. Each slave facilitator 3 then executes the unit light effect associated with the information it receives, as soon as it is received. With only one control information transmitted from the controller 30, each slave animator 3 can play its own unit light effect.

Referring to FIGS. 1, 4, 9 and 15, the slave animators 3 are connected by a communication line 310 enabling them to interact with each other to synchronize the unit light effects selected by the control member 30. When slave facilitator 3 receives the information transmitted by the control organ 3 and the analysis, the code contained in said information activates a computer application (program, software) allowing the analysis of the state of the other slave animators 3. This The slave facilitator then checks, via the communication line 310, the state of the other slave animators by analyzing various data transmitted by said other slave animators. These data include codes intended to inform the slave facilitator of 2954567 -17-

the state of progress of the unitary luminous effects executed by the other slave animators, that is to say if they have just begun to execute their unitary luminous effect, if they have just completed their unitary luminous effect, they are at half cycle time, etc. the slave animator can then execute and synchronize its unitary luminous effect with the unitary luminous effects of the other slave animators. The synchronization of the unitary light effects is thus managed by each of the slave animators 3 almost independently.

Another technique for synchronizing unitary light effects.

In an alternative embodiment, the control member 30 directly transmits information enabling the slave animators 3 to execute a unitary light effect. This information is sent periodically, for example at the beginning of each period T of a cycle, to each of the slave animators 3, so as to synchronize all the unitary light effects. With reference to FIG. 16, the information transmitted by the control member 30 passes via the command line 300. Unlike the mode of operation described above, it is no longer useful to provide a line of communication between the animators. slaves 3 since the control member 30 directly manages the synchronization of the unit light effects. In this mode of operation, a greater number of control information must be transmitted from the control member 30. In practice, the information transmitted by the control member 30 comprises codes intended to activate a computer application ( program, software) integrated in each of the slave animators 3 and allowing the implementation of the unit light effect associated with said codes. Each slave animator 3 then executes the unitary luminous effect associated with the information it receives, as soon as it is received. The supervisory body 2954567 -18-

thus controlling each of the slave animators 3, in a synchronized manner, in order to obtain a harmonious overall luminous effect.

The control member 30 may include a memory type ROM, PROM, EPROM, EEPROM or other, and in which are recorded one or more programs corresponding to a global light effect. A touch screen, a desk, a keyboard, a remote control, or other, allows a user to select the overall effect he wants to appear on the panel. The memory of the control member 30 is advantageously programmable so as to be able to modify and / or suppress and / or add global lighting effects. A user thus has the possibility of modifying and / or deleting and / or adding part of a program of a global lighting effect. In practice, the control member 30 is connected or integrates a programmer for performing this action. Once the user has selected the overall light effect of his choice, the controller 30 then issues all corresponding control information to the slave animators 3. 20

Claims (13)

Revendications1. Luminous panel formed by a frame (1) inside which light sources are arranged, characterized by the fact that: - the light sources are LEDs (2) fixed on at least one electronic card (20) arranged at inside the frame (1), - the LEDs (2) are uniformly distributed inside the frame (1) so as to form all or part of a luminous screen, - the LEDs (2) are arranged on the electronic card (20) so that each LED is visible on both sides of the panel and thus the light effect is visible on both sides, - slave animators (3) control the sequential ignition of one or more LEDs (2) independently so as to create a unitary luminous effect, - a synchronization means (3, 310) synchronizes the unitary luminous effects of the slave animators (3), the juxtaposition of said unitary luminous effects making it possible to obtain an effect visible light on both sides on the panel. 2. Panel according to claim 1, wherein: the slave animators (3) comprise a memory in which are recorded several selectable unitary light effects to turn on and off in different arrangements the LEDs (2) to which they are connected, - a control member (30) controls the slave animators (3) so as to select one of the unitary light effects recorded in their memory, - the slave animators (3) are connected by a communication line (310) allowing them interacting with each other to synchronize the unitary luminous effects selected by the control member (30), the juxtaposition of said unitary light effects making it possible to obtain the overall luminous effect. 3. Panel according to claim 1, wherein a control member (30) transmits information enabling the slave animators (3) to execute a unit light effect, said information being periodically transmitted to each of said slave animators so as to synchronize the set of unitary light effects. 10 4. Panel according to one of claims 2 or 3, wherein the control member (30) is: - either one of the slave animators (3) controlling the other slave animators, - or a master animator arranged in the frame 1 and commanding the 15 slave animators (3), - or a master animator arranged outside the frame (1) and remotely commanding the slave animators (3). 5. Panel according to one of the preceding claims, wherein each slave host (3) controls the ignition of an LED or a group of LEDs, preferably a group of four LEDs (2) monochrome or multi -chrome, said LED or said group of LEDs forming a video pixel. 25 6. Panel according to one of the preceding claims, wherein: - the LEDs (2) are fixed on several electronic boards (20) arranged parallel to the inside of the frame (1), - the LEDs (2) have arranged in the extension of the electronic cards (20) and protrude longitudinal edges thereof so as to be visible on both sides of said cards. 2954567 - 21 - 7. Panel according to one of claims 1 to 5, wherein: - the LEDs (2) are fixed on a single electronic card (20) disposed inside the frame (1), 5 - the electronic card (20). ) has perforations (200) vis-à-vis which are arranged the LEDs (2) so that the latter are visible from both sides of said card. 8. Panel according to one of claims 1 to 5, wherein: the LEDs (2) are fixed on several electronic cards (20) arranged in parallel manner inside the frame (1), - the electronic cards (20) have perforations (200) vis-à-vis which are arranged the LEDs so that the latter are visible on both sides of said cards. 15 9. Panel according to one of claims 1 to 5, wherein: - the LEDs (2) are fixed on a single electronic card (20) disposed inside the frame (1), - the LEDs are arranged from and other of the electronic card (20) 20 so that the light effect is visible from both sides of said card. 10. Panel according to one of claims 1 to 5, wherein: - the LEDs (2) are fixed on several electronic boards (20) 25 arranged in parallel to the inside of the frame (1), - the LEDs are arranged on both sides of the electronic boards (20) so that the light effect is visible on both sides of said boards. 30 11. Panel according to one of the preceding claims, wherein: - the frame (1) is covered with a cloth (11) on which is shown a decorative pattern on each side of said panel, said pattern being visible by daylight, said fabric covering the LEDs (2) and the electronic card (20), 5 - the fabric (11) has perforations (110) for passing the light emitted by the LEDs (2) when these are lit. 12. Panel according to one of the preceding claims, wherein the electronic card (20) is resinated, so that the electronic components it supports, including the lugs of the LEDs (2), are protected by resin (2000). 13. Decorative light structure, characterized in that it is formed of several light panels according to one of the preceding claims, said panels being assembled to form a flat structure or volume.