EP3568845B1 - Method for creating the elements of a digital display panel - Google Patents

Method for creating the elements of a digital display panel Download PDF

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Publication number
EP3568845B1
EP3568845B1 EP18702746.1A EP18702746A EP3568845B1 EP 3568845 B1 EP3568845 B1 EP 3568845B1 EP 18702746 A EP18702746 A EP 18702746A EP 3568845 B1 EP3568845 B1 EP 3568845B1
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EP
European Patent Office
Prior art keywords
cabinets
uprights
necessary
panel
determining
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EP18702746.1A
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German (de)
French (fr)
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EP3568845A1 (en
Inventor
William DULIEU
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Prismaflex International SA
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Prismaflex International SA
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules

Definitions

  • the invention relates to the field of display panels, and more specifically of light-emitting diode (LEDs) digital display panels.
  • LEDs light-emitting diode
  • digital display panels are appreciated for the possibility that they offer to allow an almost infinite change of images or messages to be displayed.
  • These digital display panels comprise a plurality of light-emitting diodes, arranged in a matrix fashion, and able to be individually illuminated according to the desired display.
  • These LEDs are integrated in the form of modules, each containing a few hundred LEDs, as described in the document US 5,949,581 .
  • the dimensions of the display surface are multiples of the dimensions of an LED module.
  • the length of the display surface is a multiple of 40cm while the height of the display surface is a multiple of 50cm.
  • the modules are square, for example with dimensions of 30 ⁇ 30cm or 40 ⁇ 40cm.
  • the supporting structure can be produced by a frame forming the turn of the panel.
  • the modules are fixed to the frame by means of vertical and longitudinal risers.
  • this type of structure is not suitable for panels of larger dimensions because the uprights are not able to support the weight of the modules over great lengths.
  • each cabinet is formed by an external frame on which vertical and longitudinal uprights are fixed so as to support the modules.
  • a cabinet is defined as a supporting structure of several LED modules forming a box to integrate, on the rear face of the LED modules, the elements necessary for the supply and cooling of the LED modules.
  • the structure of the cabinets is used to meet the constraints of integration and maintenance of digital panels.
  • the digital panels integrate power supplies, control circuits and means for cooling the modules.
  • the manufacture of a large panel by several cabinets makes it possible to integrate, in each cabinet, a power supply, a control circuit, cooling means and maintenance access.
  • the supporting structure of the cabinets aims to guarantee the alignment of the cabinets with one another and ensures the mechanical resistance of the panel.
  • the supporting structure takes the form of a welded steel frame with beams to secure the cabinets.
  • the cabinets are then assembled together on the supporting structure, then a crane lifts the complete panel in order to fix it on a mast.
  • each cabinet has a length of 1440 mm and a height of 864 mm or a length of 1440 mm and a length of 1152 mm.
  • the cabinets are then assembled on a supporting structure so that the total weight of this type of digital panel is close to 1 ton.
  • the structure formed by these uprights does not make it possible to directly hold the LED modules and it is necessary to use a mounting panel for the LED modules made to measure by cutting a sheet of metal.
  • This machining step destroys part of the modularity of the manufacturing of the display panel.
  • the machining of this sheet metal to form the assembly panel of the LED modules is practically as long as the realization of a cabinet from a mechanically welded structure.
  • this machined sheet metal plate is transported in one piece to the display panel assembly site.
  • the transport and assembly of the display panel remains a complex operation.
  • the invention proposes a new method for producing the elements of a large-sized digital display panel in which the cabinets are made to measure by integrating means for fixing the cabinets together so as to eliminate the use of a supporting structure to secure the cabinets.
  • the entire structure of the cabinets is made by bolting aluminum profiles instead of a mechanically welded structure, which allows the elements to be transported to the panel installation site and the panel to be easily assembled on site.
  • the invention thus makes it possible to improve the manufacturing process of the elements of a digital display panel by using standard profiles cut to measure and connected by bolting instead of using standard mechanically-welded cabinets assembled on a supporting structure.
  • Standard profiles are items that are easier to store than cabinets of the prior art.
  • Integration factories did not have the possibility of stocking all the different sizes of cabinets, it is now possible to store standard profiles and cut the profiles as needed. Integration factories can therefore produce a made-to-measure panel very quickly without being dependent on the transport and manufacturing time of a standard cabinet requiring many manufacturing steps (cutting, bending, shearing, welding).
  • the aluminum profiles are fixed by reversible fixing elements of the screw and nut type. It follows that the elements can be mounted directly on the installation site instead of mounting the cabinets on the production site, thus facilitating transport.
  • the ability to assemble and disassemble the panel elements also facilitates maintenance.
  • LED modules allow removal from the front of the panel by means of small screws placed between the LEDs.
  • the invention also makes it possible to dismantle the structure, that is to say the bars when a maintenance operator intervenes from the front face.
  • the step of determining the number and the size of the vertical uprights necessary to form an internal structure of said cabinets is carried out by searching for an alternation of two types of vertical uprights, the two types of vertical uprights having characteristics structurally distinct resistance. This embodiment makes it possible to improve the mechanical strength of the panel.
  • the step of producing said framing uprights with an aluminum profile is carried out with a cutting angle substantially equal to 45 ° with respect to the length of said profile.
  • the steps for producing the uprights are performed by laser cutting. This embodiment makes it possible to obtain very high cutting precision. Thus, it is possible to obtain sealed contact surfaces at the level of the connections between the different elements.
  • said framing uprights comprise a groove intended to enclose at least one sliding door.
  • Standard cabinets use hinged doors. However, when a cabinet is mounted in front of a post, it is often impossible to open the door fully. Thus, this embodiment makes it possible to simplify the opening of the cabinet by using sliding doors mounted in the grooves of the framing uprights.
  • This embodiment aims to make the sliding doors to measure in the same way as the uprights of the cabinets.
  • the sliding doors are made by three sections assembled together.
  • said method comprises the following steps: determining the number and size of the fans necessary to cool said cabinets, and machining said framing uprights so as to provide an air inlet for said fans.
  • This embodiment aims to anticipate the position of the fans so as to effectively cool the electronic components of the panel.
  • the determination of the number and the size of the fans can be carried out by modeling the thermal exchanges of the panel in operation.
  • the fans are regularly spaced the length or two lengths of a module.
  • said method comprises a step of mounting said fans on said framing uprights.
  • the Figure 1 illustrates an embodiment of the method for producing the elements of a digital display panel 10 of large size, that is to say with dimensions greater than 2 m by 3 m.
  • the first step 101 consists in determining the dimensions h1, l1 of a display surface 11 of the panel 10 as a function of an application envisaged.
  • the display surface 11 corresponds to the surface of the panel covered with LEDs as opposed to the parts forming the turn of the panel 10 and ensuring the maintenance of the panel 10.
  • the envisaged application refers to instructions or specification.
  • the specifications integrate the desired dimensions of the LED zone as well as the interval (“pitch”) between LEDs and the light and / or electrical power of the LEDs.
  • the compatible standard LED modules 12 As a function of these constraints, it is possible to select the compatible standard LED modules and to calculate the dimensions of the display surface 11 so that the display surface 11 is produced by juxtapositions of standard LED modules 12. For example, with an interval and a power of the LEDs, the compatible standard modules 12 have dimensions h2, l2 of 40cm by 40cm. For a first zone of LEDs of 6.5m by 3m, it is possible to constitute a display surface 11 of 6.4m by 3.2m by juxtaposing 8 lines of 16 modules 12. For a second zone of LEDs of 10.5m by 3m, it is possible to constitute a display surface 11 of 10.4m by 3.2m by juxtaposing 8 lines of 26 modules 12.
  • the second step 102 aims to divide the display surface 11 into several cabinets 13 so as to distribute the lift of the modules 12.
  • the figure 2 illustrates a strategy for dividing the display surface 11 into four cabinets 13.
  • the two upper cabinets 13 support 9 rows of 12 modules 12 while the two lower cabinets 13 support 7 rows of 12 modules 12. In fact, during cutting of the display surface 11, it is not necessary for the cabinets 13 to be identical.
  • the display surface 11 can be divided into two cabinets 13 of 4 lines of 16 modules 12.
  • the display surface 11 can be divided into four cabinets 13 of 4 lines of 13 modules 12.
  • the display surface 11 for a display surface 11 of 14.4 m by 4 m constituted by the juxtaposition of 10 lines of 36 modules 12, the display surface 11 can be divided into six cabinets 13 of 5 lines of 12 modules 12.
  • the structure of the panel 10 is similar to that illustrated on the figures 3 to 5 .
  • the digital panel 10 comprises three retaining posts 27 planted in the ground. These posts support two juxtaposed cabinets 13 according to the first costed example.
  • Each cabinet 13 has a parallelepipedic structure formed by framing uprights 14 supporting vertical uprights 15, 16 and bars 17 fixed together by bolting by means of securing elements 25.
  • the vertical uprights 15, 16 have an alternation of uprights 15 thick and uprights 16 thin so as to support the LED modules 12 while limiting the weight of the panel 10.
  • Each cabinet 13 integrates a plurality of modules 12, each module 12 integrating a conventional network of light-emitting diodes arranged on a front face of the cabinet 13 in rows and columns. Each cabinet 13 makes it possible to arrange a volume at the rear face of each module 12 to arrange the power supplies and the means for controlling the modules 12.
  • This volume is delimited by the framing uprights 14 and sliding doors 20 allowing access to the rear face of the modules 12.
  • Each door 20 is mounted in a groove 21 formed on the upper and lower frame uprights 14. In addition, this volume is cooled by an air flow generated by fans 19 mounted, at each row of modules 12, on the lower frame post 14.
  • the frame uprights 14 are made by means of an extruded aluminum profile so as to form a double wall between the outside and the inside. of panel 10.
  • Openings are made on the lower upright to bring the air between the outside and the fans 19.
  • the openings are provided with coalescing filters so as to capture the humidity of the air which passes through them.
  • the method comprises several steps 103, 104, 105, 106, 109 which can be carried out simultaneously.
  • the panel 10 can be made digitally to define all the elements before proceeding to the practical realization.
  • Step 103 aims to determine the nature and size of the framing uprights 14 according to the needs of the panel 10.
  • the resistance of the panel 10 must be greater than that of a panel placed in a building, it follows that the resistance of the framing uprights 14 must be selected according to these mechanical strength constraints.
  • the nature of the framing uprights 14 can be determined to meet other constraints such as the cost, the lightness, the corrosion resistance, etc.
  • the nature of the framing uprights 14 is determined by based on a set of criteria aimed at meeting the specifications. According to the invention, the framing uprights 14 are selected according to profiles in standard aluminum, the shape of which meets the constraints of the specifications.
  • the size and the number of uprights are determined as a function of the size and the number of cabinets 13 determined in step 102.
  • these uprights 14 are produced in step 107 by cutting the standard profiles to the desired dimensions, for example by laser cutting.
  • the assembly of the uprights 14 is anticipated, so that the uprights are cut at 45 ° to form angles specific to the corners of the cabinets 13.
  • a similar step 104 is carried out to determine the nature, number and size of the vertical uprights 15, 16 as well as to produce, in step 108, the vertical uprights 15, 16.
  • step 105 aims to determine the nature, number and size of the bars 17 so as to use standard bars adapted to the dimensions of the standard modules 12.
  • Step 106 aims to determine the number and type of securing elements 25 necessary to fix the uprights 15, 16 and the bars 17 together and to connect the cabinets 13.
  • the elements of the cabinets 13 are fixed by bolting and the securing elements 25 are of the screw / nut type.
  • steps 109 and 110 aim to select and produce the sliding doors 20.
  • the doors 20 are made from profiles cut according to the height of each cabinet 13.
  • the management of the air flows of the cabinets 13 can also be anticipated from the design stage, for example by a digital model for the management of the air flows. It is then possible, in a step 111, to determine the number, the size and the positioning of the fans 19 necessary to cool the cabinets 13. If necessary, the framing uprights 14 can be machined, in a step 112, to create openings to provide air inlets for the fans 19 .
  • the standard profiles forming the framing uprights 14 can directly comprise predetermined locations for the fans 19. It is also possible, in a step 113, to mount the fans 19 on the framing uprights 14 before transport.
  • the elements of the panel 10 can be integrated into a container 30 in order to transport them without assembling the cabinets 13.
  • a container 30 can easily contain all the elements of a panel 10 produced according to the invention, whereas the panels of the state of the art for the same dimensions require several similar containers.
  • each cabinet 13 When the elements are delivered to the installation site of the panel 10, the assembly of the structure of each cabinet 13 is carried out as illustrated on the figures 7a to 7c .
  • a first step illustrated on the figure 7a , the framing uprights 14 of each cabinet 13 are assembled and bolted together.
  • a second step illustrated on the figure 7b , the vertical uprights 15 , 16 are bolted to the framing uprights 14 then, in a third step illustrated on the figure 7c , the bars 17 are bolted between the vertical uprights 15, 16 and the framing uprights 14.
  • the LED modules 12 can be mounted on the structure of each cabinet 13 as well as all the elements necessary for the operation of the panel 10, such as the fans 19, the power supplies, the central unit, the doors 20 ...
  • the LED modules 12 are directly attached to the bars 17.
  • the bars 17 incorporate means for fixing the LED modules 12.
  • the bars 17 have two T-shaped ends.
  • the T-shaped end part of each bar 17 has a bore for fixing the bar 17 on an upright 14-16.
  • the T-shaped side parts of each bar 17 also include a bore intended to fix an LEDs module 12.
  • securing elements 25 are provided to fix the LEDs module. 12 with bores close to the frame post 14.
  • the bars 17 thus make it possible to form the fixing structure of the LED modules 12 and to use an additional piece made to measure to the size of the panel 10 or of the cabinet 13.
  • cabinets 13 are bolted together and mounted on the posts 27 as illustrated on the figure 3 .
  • the invention thus proposes a new method of producing a digital display panel 10 of large dimensions by implementing standard aluminum profiles.
  • This design provides many advantages such as the reduction in production time, in the weight and in the reduction of the bulk for the storage or transport of the elements of the panel 10.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

L'invention se rattache au domaine des panneaux d'affichage, et plus précisément des panneaux d'affichages digitaux à diodes électroluminescentes (LEDs).The invention relates to the field of display panels, and more specifically of light-emitting diode (LEDs) digital display panels.

ART ANTERIEURPRIOR ART

De façon générale, les panneaux d'affichages digitaux sont appréciés pour la possibilité qu'ils offrent de permettre un changement quasi infini des images ou messages à afficher. Ces panneaux d'affichages digitaux comportent une pluralité de diodes électroluminescentes, disposées de façon matricielle, et aptes à être éclairés individuellement en fonction de l'affichage souhaité. Ces LEDs sont intégrées sous la forme de modules, renfermant chacun quelques centaines de LEDs, tel que décrit dans le document US 5 949 581 .In general, digital display panels are appreciated for the possibility that they offer to allow an almost infinite change of images or messages to be displayed. These digital display panels comprise a plurality of light-emitting diodes, arranged in a matrix fashion, and able to be individually illuminated according to the desired display. These LEDs are integrated in the form of modules, each containing a few hundred LEDs, as described in the document US 5,949,581 .

Pour former un panneau d'affichage digital, il est connu de monter plusieurs modules de LEDs sur une structure porteuse afin de former une surface d'affichage. Ainsi, les dimensions de la surface d'affichage sont des multiples des dimensions d'un module de LEDs. Par exemple, pour un module de longueur 40cm et de hauteur 50cm, la longueur de la surface d'affichage est un multiple de 40cm alors que la hauteur de la surface d'affichage est un multiple de 50cm. Classiquement, les modules sont carrés, par exemple de dimensions 30∗30cm ou 40∗40cm.To form a digital display panel, it is known to mount several LED modules on a supporting structure in order to form a display surface. Thus, the dimensions of the display surface are multiples of the dimensions of an LED module. For example, for a module 40cm long and 50cm high, the length of the display surface is a multiple of 40cm while the height of the display surface is a multiple of 50cm. Conventionally, the modules are square, for example with dimensions of 30 ∗ 30cm or 40 ∗ 40cm.

Pour des panneaux de petites dimensions, c'est-à-dire inférieure à 2m sur 3m, la structure porteuse peut être réalisée par un cadre formant le tour du panneau. Les modules sont fixés sur le cadre par l'intermédiaire de montantes verticaux et longitudinaux.For panels of small dimensions, that is to say less than 2m by 3m, the supporting structure can be produced by a frame forming the turn of the panel. The modules are fixed to the frame by means of vertical and longitudinal risers.

Cependant, ce type de structure n'est pas adapté pour les panneaux de plus grandes dimensions car les montants ne sont pas capables de soutenir le poids des modules sur de grandes longueurs.However, this type of structure is not suitable for panels of larger dimensions because the uprights are not able to support the weight of the modules over great lengths.

Ainsi, la fabrication de panneaux de grandes dimensions impose une structure distincte dans laquelle plusieurs cabinets sont assemblés sur une structure porteuse. Pour ce faire, chaque cabinet est formé par un cadre externe sur lequel sont fixés des montants verticaux et longitudinaux de sorte à soutenir les modules. Un cabinet est défini comme une structure porteuse de plusieurs modules de LEDs formant un caisson pour intégrer, sur la face arrière des modules de LEDs, les éléments nécessaires à l'alimentation et au refroidissement des modules de LEDs.Thus, the manufacture of large-sized panels requires a distinct structure in which several cabinets are assembled on a supporting structure. To do this, each cabinet is formed by an external frame on which vertical and longitudinal uprights are fixed so as to support the modules. A cabinet is defined as a supporting structure of several LED modules forming a box to integrate, on the rear face of the LED modules, the elements necessary for the supply and cooling of the LED modules.

La structure des cabinets est utilisée pour répondre aux contraintes d'intégration et de maintenance des panneaux digitaux. En effet, en plus des modules, les panneaux digitaux intègrent des alimentations, des circuits de commande et des moyens de refroidissement des modules. La fabrication d'un panneau de grande dimension par plusieurs cabinets permet d'intégrer, dans chaque cabinet, une alimentation, un circuit de commande, des moyens de refroidissement et un accès de maintenance.The structure of the cabinets is used to meet the constraints of integration and maintenance of digital panels. In fact, in addition to the modules, the digital panels integrate power supplies, control circuits and means for cooling the modules. The manufacture of a large panel by several cabinets makes it possible to integrate, in each cabinet, a power supply, a control circuit, cooling means and maintenance access.

Cependant, ces cabinets sont particulièrement complexes à concevoir en raison du nombre d'éléments qu'ils intègrent et de la gestion des flux d'air pour refroidir correctement les modules. Il s'ensuit que des cabinets standards ont été développés avec des dimensions propres. Ces cabinets standards sont le fruit de longues années de recherches et permettent une optimisation du positionnement des différents éléments, de la gestion des flux d'air ou encore du positionnement d'au moins un accès de maintenance. Ces cabinets standards sont formés par une structure mécano-soudée en acier afin de répondre aux contraintes de résistante et d'étanchéité. La complexité de réalisation d'un cabinet est si importante qu'il n'existe pas de panneau de grandes dimensions qui ne soit réalisé avec des cabinets standards, sauf à engendrer des problématiques de coût ou de réalisations trop importantes.However, these cabinets are particularly complex to design because of the number of elements they integrate and the management of air flows to properly cool the modules. It follows that standard cabinets have been developed with specific dimensions. These standard cabinets are the result of long years of research and allow optimization of the positioning of the various elements, the management of air flows or the positioning of at least one maintenance access. These standard cabinets are formed by a mechanically welded steel structure in order to meet the constraints of resistance and tightness. The complexity of building a cabinet is so great that there is no large panel that is not made with standard cabinets, except to generate cost issues or too large achievements.

La structure porteuse des cabinets vise à garantir l'alignement des cabinets entre eux et assure la résistance mécanique du panneau. Généralement, la structure porteuse prend la forme d'un cadre mécano-soudée en acier avec des poutres pour assurer la fixation des cabinets.The supporting structure of the cabinets aims to guarantee the alignment of the cabinets with one another and ensures the mechanical resistance of the panel. Generally, the supporting structure takes the form of a welded steel frame with beams to secure the cabinets.

Pour réaliser un panneau de grande dimension, plusieurs cabinets standards sont sélectionnés de sorte à approcher les dimensions recherchées pour la surface d'affichage en fonction des dimensions possibles des cabinets standards. Les cabinets sont ensuite commandés puis les composants sont intégrés dans les cabinets en usine.To produce a large panel, several standard cabinets are selected so as to approximate the dimensions sought for the display surface according to the possible dimensions of standard cabinets. The cabinets are then ordered and the components are then integrated into the cabinets at the factory.

Les cabinets sont ensuite assemblés entre eux sur la structure porteuse, puis une grue élève le panneau complet afin de le fixer sur un mât.The cabinets are then assembled together on the supporting structure, then a crane lifts the complete panel in order to fix it on a mast.

Par exemple, pour former un panneau digital de dimensions 2880 mm par 1920 mm pour une surface d'affichage de 5.8 m2, il est connu d'utiliser 4 cabinets disposés sur 2 lignes et 2 colonnes. Chaque cabinet présente alors une longueur de 1440 mm et une hauteur de 864 mm ou une longueur de 1440 mm et une longueur de 1152 mm. Les cabinets sont ensuite assemblés sur une structure porteuse de sorte que le poids total de ce type de panneau digital est proche de 1 tonne.For example, to form a digital panel of dimensions 2880 mm by 1920 mm for a display surface of 5.8 m 2 , it is known to use 4 cabinets arranged in 2 rows and 2 columns. Each cabinet then has a length of 1440 mm and a height of 864 mm or a length of 1440 mm and a length of 1152 mm. The cabinets are then assembled on a supporting structure so that the total weight of this type of digital panel is close to 1 ton.

Cette méthode de réalisation d'un panneau digital de grande dimension présente plusieurs inconvénients. Tout d'abord, l'utilisation de cabinets standards limite les dimensions possibles pour la surface d'affichage et augmente le temps de réalisation d'un panneau en raison du temps d'acheminent des cabinets standards entre le site de production et l'usine d'intégration. Ensuite, le volume et le poids de transport sont très importants. Pour finir, la présence de la structure porteuse des cabinets augmente la taille du panneau par rapport à la surface d'affichage et complexifie la fabrication du panneau.This method of making a large digital panel has several drawbacks. First of all, the use of standard cabinets limits the possible dimensions for the display surface and increases the time needed to complete a panel due to the time it takes to transport standard cabinets between the production site and the factory. integration. Then the transport volume and weight are very important. Finally, the presence of the supporting structure of the cabinets increases the size of the panel relative to the display surface and complicates the manufacture of the panel.

Il est connu du document US 2009/0289160 de former un panneau d'affichage à partir de montants découpés sur mesure en fonction des dimensions recherchées pour le panneau d'affichage.It is known from the document US 2009/0289160 to form a display panel from amounts cut to measure according to the dimensions sought for the display panel.

Cependant, la structure formée par ces montants ne permet pas de maintenir directement les modules de LEDs et il est nécessaire d'utiliser un panneau de montage des modules LEDs réalisé sur mesure par découpe d'une plaque de tôle. Cette étape d'usinage annihile une partie de la modularité de la fabrication du panneau d'affichage. En effet, l'usinage de cette plaque de tôle pour former le panneau de montage des modules LEDs est pratiquement aussi longue que la réalisation d'un cabinet à partir d'une structure mécano-soudée.However, the structure formed by these uprights does not make it possible to directly hold the LED modules and it is necessary to use a mounting panel for the LED modules made to measure by cutting a sheet of metal. This machining step destroys part of the modularity of the manufacturing of the display panel. In fact, the machining of this sheet metal to form the assembly panel of the LED modules is practically as long as the realization of a cabinet from a mechanically welded structure.

En outre, cette plaque de tôle usinée est transportée en un seul bloc sur le site de montage du panneau d'affichage. Ainsi, le transport et le montage du panneau d'affichage reste une opération complexe.In addition, this machined sheet metal plate is transported in one piece to the display panel assembly site. Thus, the transport and assembly of the display panel remains a complex operation.

EXPOSE DE L'INVENTIONDISCLOSURE OF THE INVENTION

Pour remédier à ces inconvénients, l'invention propose un nouveau procédé de réalisation des éléments d'un panneau d'affichage digital de grandes dimensions dans lequel les cabinets sont réalisés sur mesure en intégrant des moyens de fixation des cabinets entre eux de sorte à supprimer l'utilisation d'une structure porteuse pour solidariser les cabinets. En outre, toute la structure des cabinets est réalisée par boulonnages de profilés aluminium au lieu d'une structure mécano-soudée ce qui permet de transporter les éléments sur le site d'installation du panneau et de monter facilement le panneau sur place.To remedy these drawbacks, the invention proposes a new method for producing the elements of a large-sized digital display panel in which the cabinets are made to measure by integrating means for fixing the cabinets together so as to eliminate the use of a supporting structure to secure the cabinets. In addition, the entire structure of the cabinets is made by bolting aluminum profiles instead of a mechanically welded structure, which allows the elements to be transported to the panel installation site and the panel to be easily assembled on site.

Ce faisant, le Demandeur a vaincu un préjugé technique important en remettant en cause l'utilisation de cabinets standards. En effet, pour répondre à toutes les contraintes qui reposent sur les cabinets, les inventeurs ont mis au point des profilés standards permettant de former une multitude de cabinets par un simple découpage à la longueur recherchée.In doing so, the Applicant has overcome an important technical prejudice by questioning the use of standard cabinets. In fact, to meet all the constraints which are based on cabinets, the inventors have developed standard profiles making it possible to form a multitude of cabinets by simply cutting to the desired length.

Pour limiter le nombre de pièces à découper, seuls les montants d'encadrement et verticaux sont taillés sur mesure alors que les barreaux sont choisis en fonction de la dimension des modules LEDs.To limit the number of parts to be cut, only the framing and vertical uprights are cut to measure, while the bars are chosen according to the size of the LED modules.

A cet effet, l'invention concerne un procédé de réalisation des éléments d'un panneau d'affichage digital dont les dimensions sont supérieures à 2m par 3m, ledit procédé comportant les étapes suivantes :

  • détermination d'une hauteur et d'une longueur d'une surface d'affichage dudit panneau en fonction d'une application envisagée, ladite hauteur et ladite longueur étant des multiples d'une hauteur et d'une longueur d'un module standard destiné à être juxtaposé plusieurs fois pour former ladite surface d'affichage,
  • découpage de ladite surface d'affichage en plusieurs cabinets de sorte que chaque cabinet comporte un nombre entier de modules standards,
  • détermination du nombre et de la taille des montants d'encadrement nécessaires pour former un encadrement de chaque cabinet,
  • détermination du nombre et de la taille des montants verticaux nécessaires pour former une structure interne desdits cabinets,
  • détermination du nombre de barreaux nécessaires pour relier lesdits montants d'encadrement et verticaux desdits cabinets, la taille desdites barreaux étant sélectionnée en fonction de ladite longueur desdits modules standards,
  • détermination du nombre et du type d'éléments de solidarisation nécessaires pour fixer les montants d'encadrement et verticaux et les barreaux entre eux et pour relier lesdits cabinets, lesdits éléments de solidarisation étant du type vis/écrou,
  • réalisation desdits montants d'encadrement par un profilé en aluminium, et
  • réalisation des montants verticaux par un profilé en aluminium,
  • chaque profilé étant choisi parmi des pièces standards et découpé si besoin à la dimension recherchée.
To this end, the invention relates to a method for producing the elements of a digital display panel whose dimensions are greater than 2 m by 3 m, said method comprising the following steps:
  • determining a height and a length of a display surface of said panel as a function of a contemplated application, said height and said length being multiples of a height and a length of a standard module intended to be juxtaposed several times to form said display surface,
  • division of said display surface into several cabinets so that each cabinet has an integer number of standard modules,
  • determination of the number and size of the supervisory amounts necessary to form an executive of each cabinet,
  • determination of the number and size of the vertical uprights necessary to form an internal structure of said cabinets,
  • determination of the number of bars necessary to connect said framing and vertical uprights of said cabinets, the size of said bars being selected as a function of said length of said standard modules,
  • determination of the number and type of securing elements required to fix the framing and vertical uprights and the bars to each other and to connect said cabinets, said securing elements being of the screw / nut type,
  • realization of said framing uprights by an aluminum profile, and
  • realization of the vertical uprights by an aluminum profile,
  • each profile being chosen from standard parts and cut if necessary to the desired dimension.

L'invention permet ainsi d'améliorer le processus de fabrication des éléments d'un panneau d'affichage digital en utilisant des profilés standards découpés sur mesure et reliées par boulonnage au lieu d'utiliser des cabinets standards mécano-soudés assemblés sur une structure porteuse. Les profilés standards sont des éléments plus faciles à stocker que les cabinets de l'art antérieur.The invention thus makes it possible to improve the manufacturing process of the elements of a digital display panel by using standard profiles cut to measure and connected by bolting instead of using standard mechanically-welded cabinets assembled on a supporting structure. . Standard profiles are items that are easier to store than cabinets of the prior art.

Alors que les usines d'intégration n'avaient pas la possibilité de stocker toutes les différentes tailles de cabinets, il est désormais envisageable de stocker les profilés standards et de découper les profilés selon les besoins. Les usines d'intégration peuvent donc réaliser un panneau sur mesure très rapidement sans être tributaires du délai de transport et de fabrication d'un cabinet standard demandant de nombreuses étapes de fabrication (découpe, pliage, cisaillage, soudage).While integration factories did not have the possibility of stocking all the different sizes of cabinets, it is now possible to store standard profiles and cut the profiles as needed. Integration factories can therefore produce a made-to-measure panel very quickly without being dependent on the transport and manufacturing time of a standard cabinet requiring many manufacturing steps (cutting, bending, shearing, welding).

De plus, la structure acier des cabinets de l'état de la technique est remplacée par des profilés en aluminium, limitant ainsi le poids du panneau et facilitant le découpage des montants.In addition, the steel structure of the cabinets of the state of the art is replaced by aluminum profiles, thus limiting the weight of the panel and facilitating the cutting of the uprights.

Contrairement aux cabinets mécano-soudés de l'état de la technique, les profilés en aluminium sont fixés par des éléments de solidarisation réversibles de type vis et écrou. Il s'ensuit que les éléments peuvent être montés directement sur le site d'installation au lieu de réaliser un montage des cabinets sur le site de production facilitant, ainsi, le transport.Unlike the mechanically welded cabinets of the state of the art, the aluminum profiles are fixed by reversible fixing elements of the screw and nut type. It follows that the elements can be mounted directly on the installation site instead of mounting the cabinets on the production site, thus facilitating transport.

La capacité de montage et de démontage des éléments du panneau permet également de faciliter la maintenance.The ability to assemble and disassemble the panel elements also facilitates maintenance.

Contrairement aux cabinets de l'état de la technique, il est désormais possible de changer une partie du cabinet suite à une catastrophe naturelle qui aurait endommagé la structure du panneau. En outre, certains modules LEDs permettent de réaliser un démontage par la face avant du panneau au moyen de petites vis disposées entre les LEDs. Cependant, il est extrêmement délicat d'intervenir sur les équipements disposés derrière les modules LEDs car la taille d'un module est souvent réduite, par exemple 30x30cm. L'invention permet également de démonter la structure, c'est-à-dire les barreaux lorsqu'un opérateur de maintenance intervient par la face avant.Unlike cabinets of the state of the art, it is now possible to change part of the cabinet following a natural disaster which would have damaged the structure of the panel. In addition, some LED modules allow removal from the front of the panel by means of small screws placed between the LEDs. However, it is extremely difficult to intervene on the equipment placed behind the modules. LEDs because the size of a module is often small, for example 30x30cm. The invention also makes it possible to dismantle the structure, that is to say the bars when a maintenance operator intervenes from the front face.

Selon un mode de réalisation, l'étape de détermination du nombre et de la taille des montants verticaux nécessaires pour former une structure interne desdits cabinets est réalisée en recherchant une alternance de deux types de montants verticaux, les deux types de montants verticaux ayant des caractéristiques de résistance structurellement distinctes. Ce mode de réalisation permet d'améliorer la résistance mécanique du panneau.According to one embodiment, the step of determining the number and the size of the vertical uprights necessary to form an internal structure of said cabinets is carried out by searching for an alternation of two types of vertical uprights, the two types of vertical uprights having characteristics structurally distinct resistance. This embodiment makes it possible to improve the mechanical strength of the panel.

Selon un mode de réalisation, l'étape de réalisation desdits montants d'encadrement par un profilé en aluminium est réalisée avec un angle de découpe sensiblement égal à 45° par rapport à la longueur dudit profilé. Ce mode de réalisation permet de former des angles saillants pour l'encadrement des cabinets.According to one embodiment, the step of producing said framing uprights with an aluminum profile is carried out with a cutting angle substantially equal to 45 ° with respect to the length of said profile. This embodiment makes it possible to form salient angles for the framing of the cabinets.

Selon un mode de réalisation, les étapes de réalisation des montants sont effectuées par une découpe au laser. Ce mode de réalisation permet d'obtenir une très grande précision de découpe. Ainsi, il est possible d'obtenir des surfaces de contact étanches au niveau des liaisons entre les différents éléments.According to one embodiment, the steps for producing the uprights are performed by laser cutting. This embodiment makes it possible to obtain very high cutting precision. Thus, it is possible to obtain sealed contact surfaces at the level of the connections between the different elements.

Selon un mode de réalisation, lesdits montants d'encadrement comportent une rainure destinée à enserrer au moins une porte coulissante. Les cabinets standards utilisent des portes à charnières. Cependant, lorsqu'un cabinet est monté devant un poteau, il souvent impossible d'ouvrir la porte complètement. Ainsi, ce mode de réalisation permet de simplifier l'ouverture du cabinet en utilisant des portes coulissantes montées dans des rainures des montants d'encadrement.According to one embodiment, said framing uprights comprise a groove intended to enclose at least one sliding door. Standard cabinets use hinged doors. However, when a cabinet is mounted in front of a post, it is often impossible to open the door fully. Thus, this embodiment makes it possible to simplify the opening of the cabinet by using sliding doors mounted in the grooves of the framing uprights.

Selon un mode de réalisation, ledit procédé comporte les étapes suivantes :

  • détermination du nombre et de la taille des portes coulissantes nécessaires pour fermer lesdits cabinets, et
  • réalisation des portes coulissantes par au moins un profilé en aluminium,
  • chaque profilé étant choisi parmi des pièces standards et découpé si besoin à la dimension recherchée.
According to one embodiment, said method comprises the following steps:
  • determining the number and size of sliding doors required to close said cabinets, and
  • realization of sliding doors with at least one aluminum profile,
  • each profile being chosen from standard parts and cut if necessary to the desired dimension.

Ce mode de réalisation vise à réaliser les portes coulissantes sur mesure de la même manière que les montants des cabinets.This embodiment aims to make the sliding doors to measure in the same way as the uprights of the cabinets.

Ainsi, comme pour les cabinets, ce mode de réalisation permet de limiter le stock et de réaliser rapidement et sur mesure les portes des cabinets. De préférence, les portes coulissantes sont réalisées par trois profilés assemblés entre eux.Thus, as for the cabinets, this embodiment makes it possible to limit the stock and to quickly and tailor the cabinet doors. Preferably, the sliding doors are made by three sections assembled together.

Selon un mode de réalisation, ledit procédé comporte les étapes suivantes : détermination du nombre et de la taille des ventilateurs nécessaires pour refroidir lesdits cabinets, et usinage desdits montants d'encadrement de sorte à aménager une arrivée d'air pour lesdits ventilateurs.According to one embodiment, said method comprises the following steps: determining the number and size of the fans necessary to cool said cabinets, and machining said framing uprights so as to provide an air inlet for said fans.

Ce mode de réalisation vise à anticiper la position des ventilateurs de sorte à refroidir efficacement les composants électroniques du panneau. Par exemple, la détermination du nombre et de la taille des ventilateurs peut être réalisée par une modélisation des échanges thermiques du panneau en fonctionnement. De préférence, les ventilateurs sont régulièrement espacés de la longueur ou de deux longueurs d'un module.This embodiment aims to anticipate the position of the fans so as to effectively cool the electronic components of the panel. For example, the determination of the number and the size of the fans can be carried out by modeling the thermal exchanges of the panel in operation. Preferably, the fans are regularly spaced the length or two lengths of a module.

De préférence, ledit procédé comporte une étape de montage desdits ventilateurs sur lesdits montants d'encadrement. En effet, même si les éléments du panneau sont envoyés sur le site démontés, il est possible de monter certains éléments avant l'envoi de sorte à simplifier le montage sur le site.Preferably, said method comprises a step of mounting said fans on said framing uprights. Indeed, even if the panel elements are sent to the site dismantled, it is possible to assemble certain elements before sending so as to simplify assembly on the site.

DESCRIPTION SOMMAIRE DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

La manière de réaliser l'invention ainsi que les avantages qui en découlent, ressortiront bien du mode de réalisation qui suit, donné à titre indicatif mais non limitatif, à l'appui des figures annexées dans lesquelles les figures 1 à 7 représentent :

  • Figure 1 : un organigramme d'un procédé de réalisation des éléments d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;
  • Figure 2 : une représentation schématique de face du découpage d'une surface d'affichage d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;
  • Figure 3 : une vue en perspective de dos d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;
  • Figure 4 : une vue en perspective d'une structure d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;
  • Figure 5 : une représentation schématique d'une structure d'un panneau d'affichage digital selon un mode de réalisation de l'invention ;
  • Figure 6a et 6b : deux vues en perspectives des deux types de colisage des éléments d'un panneau d'affichage digital selon deux modes de réalisation de l'invention ; et
  • Figure 7a à 7c : trois étapes de montage d'une structure d'un cabinet d'un panneau d'affichage digital selon un mode de réalisation de l'invention.
The manner of carrying out the invention as well as the advantages which result therefrom will emerge clearly from the embodiment which follows, given by way of indication but not limiting, in support of the appended figures in which the figures 1 to 7 represent:
  • Figure 1 : a flowchart of a method for producing the elements of a digital display panel according to one embodiment of the invention;
  • Figure 2 : a schematic front representation of the cutout of a display surface of a digital display panel according to one embodiment of the invention;
  • Figure 3 : a rear perspective view of a digital display panel according to one embodiment of the invention;
  • Figure 4 : a perspective view of a structure of a digital display panel according to one embodiment of the invention;
  • Figure 5 : a schematic representation of a structure of a digital display panel according to one embodiment of the invention;
  • Figure 6a and 6b : two perspective views of the two types of packaging of the elements of a digital display panel according to two embodiments of the invention; and
  • Figure 7a to 7c : three stages of mounting a structure of a cabinet of a digital display panel according to one embodiment of the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

La Figure 1 illustre un mode de réalisation du procédé de réalisation des éléments d'un panneau d'affichage digital 10 de grande taille, c'est-à-dire avec des dimensions supérieures à 2m par 3m.The Figure 1 illustrates an embodiment of the method for producing the elements of a digital display panel 10 of large size, that is to say with dimensions greater than 2 m by 3 m.

La première étape 101 consiste à déterminer les dimensions h1, l1 d'une surface d'affichage 11 du panneau 10 en fonction d'une application envisagée. Au sens de l'invention, la surface d'affichage 11 correspond à la surface du panneau recouverte de LEDs par opposition aux parties formant le tour du panneau 10 et assurant le maintien du panneau 10. L'application envisagée fait référence à des consignes ou un cahier des charges.The first step 101 consists in determining the dimensions h1, l1 of a display surface 11 of the panel 10 as a function of an application envisaged. For the purposes of the invention, the display surface 11 corresponds to the surface of the panel covered with LEDs as opposed to the parts forming the turn of the panel 10 and ensuring the maintenance of the panel 10. The envisaged application refers to instructions or specification.

Par exemple, le cahier des charges intègre les dimensions recherchées de la zone de LEDs ainsi que l'intervalle (« pitch ») entre LEDs et la puissance lumineuse et/ou électrique des LEDs.For example, the specifications integrate the desired dimensions of the LED zone as well as the interval (“pitch”) between LEDs and the light and / or electrical power of the LEDs.

En fonction de ces contraintes, il est possible de sélectionner les modules de LEDs standards compatibles et de calculer les dimensions de la surface d'affichage 11 de sorte que la surface d'affichage 11 est réalisée par des juxtapositions de modules standards 12 de LEDs. Par exemple, avec un intervalle et une puissance des LEDs, les modules standards 12 compatibles présentent des dimensions h2, l2 de 40cm par 40cm. Pour une première zone de LEDs de 6.5m par 3m, il est possible de constituer une surface d'affichage 11 de 6.4m par 3.2m en juxtaposant 8 lignes de 16 modules 12. Pour une seconde zone de LEDs de 10.5m par 3m, il est possible de constituer une surface d'affichage 11 de 10.4m par 3.2m en juxtaposant 8 lignes de 26 modules 12. As a function of these constraints, it is possible to select the compatible standard LED modules and to calculate the dimensions of the display surface 11 so that the display surface 11 is produced by juxtapositions of standard LED modules 12. For example, with an interval and a power of the LEDs, the compatible standard modules 12 have dimensions h2, l2 of 40cm by 40cm. For a first zone of LEDs of 6.5m by 3m, it is possible to constitute a display surface 11 of 6.4m by 3.2m by juxtaposing 8 lines of 16 modules 12. For a second zone of LEDs of 10.5m by 3m, it is possible to constitute a display surface 11 of 10.4m by 3.2m by juxtaposing 8 lines of 26 modules 12.

Pour une troisième zone de LEDs de 14.5m par 4m, il est possible de constituer une surface d'affichage 11 de 10.4m par 3.2m en juxtaposant 10 lignes de 36 modules 12. For a third zone of LEDs of 14.5m by 4m, it is possible to constitute a display surface 11 of 10.4m by 3.2m by juxtaposing 10 lines of 36 modules 12.

Lorsque les dimensions h1, l1 de la surface d'affichage 11 et le nombre de modules 12 sont déterminées, la seconde étape 102 vise à découper la surface d'affichage 11 en plusieurs cabinets 13 de sorte à répartir la portance des modules 12. When the dimensions h1, l1 of the display surface 11 and the number of modules 12 are determined, the second step 102 aims to divide the display surface 11 into several cabinets 13 so as to distribute the lift of the modules 12.

La figure 2 illustre une stratégie de découpage de la surface d'affichage 11 en quatre cabinets 13. Les deux cabinets 13 supérieurs supportent 9 lignes de 12 modules 12 alors que les deux cabinets 13 inférieurs supportent 7 lignes de 12 modules 12. En effet, lors du découpage de la surface d'affichage 11, il n'est pas nécessaire que les cabinets 13 soient identiques.The figure 2 illustrates a strategy for dividing the display surface 11 into four cabinets 13. The two upper cabinets 13 support 9 rows of 12 modules 12 while the two lower cabinets 13 support 7 rows of 12 modules 12. In fact, during cutting of the display surface 11, it is not necessary for the cabinets 13 to be identical.

Selon le premier exemple chiffré précédent, pour une surface d'affichage 11 de 6.4m par 3.2m constituée par la juxtaposition de 8 lignes de 16 modules 12, la surface d'affichage 11 peut être découpée en deux cabinets 13 de 4 lignes de 16 modules 12. Selon le second exemple chiffré précédent, pour une surface d'affichage 11 de 10.4m par 3.2m constituée par la juxtaposition de 8 lignes de 26 modules 12, la surface d'affichage 11 peut être découpée en quatre cabinets 13 de 4 lignes de 13 modules 12. According to the first previous costed example, for a display surface 11 of 6.4m by 3.2m constituted by the juxtaposition of 8 lines of 16 modules 12, the display surface 11 can be divided into two cabinets 13 of 4 lines of 16 modules 12. According to the second previous costed example, for a display surface 11 of 10.4m by 3.2m constituted by the juxtaposition of 8 lines of 26 modules 12, the display surface 11 can be divided into four cabinets 13 of 4 lines of 13 modules 12.

Selon le troisième exemple chiffré précédent, pour une surface d'affichage 11 de 14.4m par 4m constituée par la juxtaposition de 10 lignes de 36 modules 12, la surface d'affichage 11 peut être découpée en six cabinets 13 de 5 lignes de 12 modules 12. According to the third previous costed example, for a display surface 11 of 14.4 m by 4 m constituted by the juxtaposition of 10 lines of 36 modules 12, the display surface 11 can be divided into six cabinets 13 of 5 lines of 12 modules 12.

Lorsque les dimensions et le positionnement des cabinets 13 sont définis, il est possible d'en déduire tous les éléments nécessaires pour réaliser les cabinets 13 et les assembler. Pour se faire, la structure du panneau 10 est analogue à celle illustrée sur les figures 3 à 5.When the dimensions and the positioning of the cabinets 13 are defined, it is possible to deduce therefrom all the elements necessary to produce the cabinets 13 and to assemble them. To do this, the structure of the panel 10 is similar to that illustrated on the figures 3 to 5 .

Le panneau digital 10 comporte trois poteaux de maintien 27 plantés dans le sol. Ces poteaux supportent deux cabinets 13 juxtaposés selon le premier exemple chiffré.The digital panel 10 comprises three retaining posts 27 planted in the ground. These posts support two juxtaposed cabinets 13 according to the first costed example.

Chaque cabinet 13 présente une structure parallélépipédique formée par des montants d'encadrement 14 supportant des montants verticaux 15, 16 et des barreaux 17 fixés entre eux par boulonnage au moyen d'éléments de solidarisation 25. Les montants verticaux 15, 16 présentent une alternance de montants 15 épais et de montants 16 fins de sorte à assurer le support des modules LEDs 12 tout en limitant le poids du panneau 10. Each cabinet 13 has a parallelepipedic structure formed by framing uprights 14 supporting vertical uprights 15, 16 and bars 17 fixed together by bolting by means of securing elements 25. The vertical uprights 15, 16 have an alternation of uprights 15 thick and uprights 16 thin so as to support the LED modules 12 while limiting the weight of the panel 10.

Chaque cabinet 13 intègre une pluralité de modules 12, chaque module 12 intégrant un réseau classique de diodes électroluminescentes disposées sur une face avant du cabinet 13 en lignes et en colonnes. Chaque cabinet 13 permet d'aménager un volume au niveau de la face arrière de chaque module 12 pour disposer les alimentations et les moyens de contrôle des modules 12. Each cabinet 13 integrates a plurality of modules 12, each module 12 integrating a conventional network of light-emitting diodes arranged on a front face of the cabinet 13 in rows and columns. Each cabinet 13 makes it possible to arrange a volume at the rear face of each module 12 to arrange the power supplies and the means for controlling the modules 12.

Ce volume est délimité par les montants d'encadrement 14 et des portes coulissantes 20 permettant d'accéder à la face arrière des modules 12. This volume is delimited by the framing uprights 14 and sliding doors 20 allowing access to the rear face of the modules 12.

Chaque porte 20 est montée dans une rainure 21 ménagée sur les montants d'encadrement 14 supérieur et inférieur. En outre, ce volume est refroidi par un flux d'air généré par des ventilateurs 19 montés, au niveau de chaque rangée de modules 12, sur le montant d'encadrement 14 inférieur.Each door 20 is mounted in a groove 21 formed on the upper and lower frame uprights 14. In addition, this volume is cooled by an air flow generated by fans 19 mounted, at each row of modules 12, on the lower frame post 14.

Pour garantir l'arrivée d'air et limiter le risque de défaut d'étanchéité, les montants d'encadrement 14 sont réalisés au moyen d'un profilé en aluminium extrudé de sorte à former une double paroi entre l'extérieur et l'intérieur du panneau 10. To guarantee the air intake and limit the risk of leaks, the frame uprights 14 are made by means of an extruded aluminum profile so as to form a double wall between the outside and the inside. of panel 10.

Des ouvertures sont ménagées sur le montant inférieur pour amener l'air entre l'extérieur et les ventilateurs 19. De préférence, les ouvertures sont pourvues de filtres coalescents de sorte à capter l'humidité de l'air qui les traverse.Openings are made on the lower upright to bring the air between the outside and the fans 19. Preferably, the openings are provided with coalescing filters so as to capture the humidity of the air which passes through them.

Pour réaliser cette structure illustrée sur les figures 3 à 5, ou toute structure analogue, le procédé comporte plusieurs étapes 103, 104, 105, 106, 109 pouvant être réalisées simultanément. De préférence, le panneau 10 peut être réalisé numériquement pour définir tous les éléments avant de passer à la réalisation pratique.To achieve this structure illustrated on figures 3 to 5 , or any similar structure, the method comprises several steps 103, 104, 105, 106, 109 which can be carried out simultaneously. Preferably, the panel 10 can be made digitally to define all the elements before proceeding to the practical realization.

L'étape 103 vise à déterminer la nature et la taille des montants d'encadrement 14 en fonction des besoins du panneau 10. Step 103 aims to determine the nature and size of the framing uprights 14 according to the needs of the panel 10.

Par exemple, pour un panneau 10 disposé en extérieur, la résistance du panneau 10 doit être supérieure à celle d'un panneau disposé dans un bâtiment, il s'ensuit que la résistance des montants d'encadrement 14 doit être sélectionnée en fonction de ces contraintes de résistance mécanique. En variante, la nature des montants d'encadrement 14 peut être déterminée pour répondre à d'autre contraintes telles que le coût, la légèrement, la résistance à la corrosion... Généralement, la nature des montants d'encadrement 14 est déterminée en fonction d'un ensemble de critères visant à répondre au cahier des charges. Selon l'invention, les montants d'encadrement 14 sont sélectionnés selon des profilés en aluminium standards dont la forme permet de répondre aux contraintes du cahier des charges.For example, for a panel 10 placed outside, the resistance of the panel 10 must be greater than that of a panel placed in a building, it follows that the resistance of the framing uprights 14 must be selected according to these mechanical strength constraints. As a variant, the nature of the framing uprights 14 can be determined to meet other constraints such as the cost, the lightness, the corrosion resistance, etc. Generally, the nature of the framing uprights 14 is determined by based on a set of criteria aimed at meeting the specifications. According to the invention, the framing uprights 14 are selected according to profiles in standard aluminum, the shape of which meets the constraints of the specifications.

Lorsque la nature des montants d'encadrement 14 est déterminée, la taille et le nombre des montants sont déterminés en fonction de la taille et du nombre de cabinets 13 déterminés à l'étape 102. When the nature of the framing uprights 14 is determined, the size and the number of uprights are determined as a function of the size and the number of cabinets 13 determined in step 102.

Lorsque les montants 14 nécessaires pour former le panneau 10 sont définis, ces montants 14 sont réalisés dans l'étape 107 en découpant les profilés standards aux dimensions recherchées, par exemple par une découpe au laser. Lors de la découpe des montants 14, l'assemblage des montants 14 est anticipé, de sorte que les montants sont découpés à 45° pour former des angles propres aux coins des cabinets 13. When the uprights 14 necessary to form the panel 10 are defined, these uprights 14 are produced in step 107 by cutting the standard profiles to the desired dimensions, for example by laser cutting. When cutting the uprights 14, the assembly of the uprights 14 is anticipated, so that the uprights are cut at 45 ° to form angles specific to the corners of the cabinets 13.

Une étape similaire 104 est réalisée pour déterminer la nature, le nombre et la taille des montants verticaux 15, 16 ainsi que pour réaliser, dans l'étape 108, les montants verticaux 15, 16. A similar step 104 is carried out to determine the nature, number and size of the vertical uprights 15, 16 as well as to produce, in step 108, the vertical uprights 15, 16.

En ce qui concerne les barreaux 17, l'étape 105 vise à déterminer la nature, le nombre et la taille des barreaux 17 de sorte à utiliser des barreaux standards adaptés sur les dimensions des modules standards 12. As regards the bars 17, step 105 aims to determine the nature, number and size of the bars 17 so as to use standard bars adapted to the dimensions of the standard modules 12.

L'étape 106 vise à déterminer le nombre et le type d'éléments de solidarisation 25 nécessaires pour fixer les montants 15, 16 et les barreaux 17 entre eux et pour relier les cabinets 13. De préférence, les éléments des cabinets 13 sont fixés par boulonnage et les éléments de solidarisation 25 sont du type vis/écrou.Step 106 aims to determine the number and type of securing elements 25 necessary to fix the uprights 15, 16 and the bars 17 together and to connect the cabinets 13. Preferably, the elements of the cabinets 13 are fixed by bolting and the securing elements 25 are of the screw / nut type.

En outre, les étapes 109 et 110 visent à sélectionner et réaliser les portes coulissantes 20. Pour ce faire, les portes 20 sont réalisées à partir de profilés découpés en fonction de la hauteur de chaque cabinet 13. In addition, steps 109 and 110 aim to select and produce the sliding doors 20. To do this, the doors 20 are made from profiles cut according to the height of each cabinet 13.

La gestion des flux d'air des cabinets 13 peut également être anticipée dès la conception, par exemple par un modèle numérique de gestion des flux d'air. Il est ensuite possible, dans une étape 111, de déterminer le nombre, la taille et le positionnement des ventilateurs 19 nécessaires pour refroidir les cabinets 13. Au besoin, les montants d'encadrement 14 peuvent être usinés, dans une étape 112, pour créer des ouvertures afin d'aménager des arrivés d'air pour les ventilateurs 19.The management of the air flows of the cabinets 13 can also be anticipated from the design stage, for example by a digital model for the management of the air flows. It is then possible, in a step 111, to determine the number, the size and the positioning of the fans 19 necessary to cool the cabinets 13. If necessary, the framing uprights 14 can be machined, in a step 112, to create openings to provide air inlets for the fans 19 .

En variante, les profilés standards formant les montants d'encadrement 14 peuvent directement comprendre des emplacements prédéterminés pour les ventilateurs 19. Il est également possible, dans une étape 113, de monter les ventilateurs 19 sur les montants d'encadrement 14 avant le transport.As a variant, the standard profiles forming the framing uprights 14 can directly comprise predetermined locations for the fans 19. It is also possible, in a step 113, to mount the fans 19 on the framing uprights 14 before transport.

Lorsque tous les éléments sont sélectionnés et/ou usinés, les éléments du panneau 10 peuvent être intégrés dans un containeur 30 afin de les transporter sans assembler les cabinets 13. When all the elements are selected and / or machined, the elements of the panel 10 can be integrated into a container 30 in order to transport them without assembling the cabinets 13.

Tel qu'illustré sur les figures 6a et 6b, un container 30 peut facilement contenir tous les éléments d'un panneau 10 réalisés selon l'invention alors que les panneaux de l'état de la technique pour les mêmes dimensions nécessitent plusieurs containeurs similaires.As shown on figures 6a and 6b , a container 30 can easily contain all the elements of a panel 10 produced according to the invention, whereas the panels of the state of the art for the same dimensions require several similar containers.

Lorsque les éléments sont livrés sur le site d'implantation du panneau 10, le montage de la structure de chaque cabinet 13 est réalisé tel qu'illustré sur les figures 7a à 7c. Dans une première étape, illustrée sur la figure 7a, les montants d'encadrement 14 de chaque cabinet 13 sont assemblés et boulonnés entre eux. Dans une seconde étape, illustrée sur la figure 7b, les montants verticaux 15, 16 sont boulonnés sur les montants d'encadrement 14 puis, dans une troisième étape illustrée sur la figure 7c, les barreaux 17 sont boulonnés entre les montantes verticaux 15, 16 et les montants d'encadrement 14. When the elements are delivered to the installation site of the panel 10, the assembly of the structure of each cabinet 13 is carried out as illustrated on the figures 7a to 7c . In a first step, illustrated on the figure 7a , the framing uprights 14 of each cabinet 13 are assembled and bolted together. In a second step, illustrated on the figure 7b , the vertical uprights 15 , 16 are bolted to the framing uprights 14 then, in a third step illustrated on the figure 7c , the bars 17 are bolted between the vertical uprights 15, 16 and the framing uprights 14.

Ensuite, les modules LEDs 12 peuvent être montés sur la structure de chaque cabinet 13 ainsi que tous les éléments nécessaires au fonctionnement du panneau 10, tels que les ventilateurs 19, les alimentations, l'unité centrale, les portes 20... Then, the LED modules 12 can be mounted on the structure of each cabinet 13 as well as all the elements necessary for the operation of the panel 10, such as the fans 19, the power supplies, the central unit, the doors 20 ...

Selon l'invention, les modules LEDs 12 sont directement fixés sur les barreaux 17. Pour ce faire, les barreaux 17 intègrent des moyens de fixation des modules LEDs 12. Dans l'exemple de la figure 5, les barreaux 17 présentent deux extrémités en forme de T. La partie terminale en forme de T de chaque barreau 17 comporte un alésage pour fixer le barreau 17 sur un montant 14-16. Les parties latérales en forme de T de chaque barreau 17 comportent également un alésage destiné à fixer un module LEDs 12. Lorsque le module LEDs 12 est fixé sur un montant d'encadrement 14, des éléments de solidarisation 25 sont prévus pour fixer le module LEDs 12 avec des alésages proches du montant d'encadrement 14. According to the invention, the LED modules 12 are directly attached to the bars 17. To do this, the bars 17 incorporate means for fixing the LED modules 12. In the example of figure 5 , the bars 17 have two T-shaped ends. The T-shaped end part of each bar 17 has a bore for fixing the bar 17 on an upright 14-16. The T-shaped side parts of each bar 17 also include a bore intended to fix an LEDs module 12. When the LEDs module 12 is fixed on a frame post 14, securing elements 25 are provided to fix the LEDs module. 12 with bores close to the frame post 14.

Les barreaux 17 permettent ainsi de former la structure de fixation des modules LEDs 12 sont utiliser une pièce supplémentaire réalisée sur mesure à la dimension du panneau 10 ou du cabinet 13. The bars 17 thus make it possible to form the fixing structure of the LED modules 12 and to use an additional piece made to measure to the size of the panel 10 or of the cabinet 13.

Pour finir, les cabinets 13 sont boulonnés entre eux et montés sur les poteaux 27 tel qu'illustré sur la figure 3.Finally, the cabinets 13 are bolted together and mounted on the posts 27 as illustrated on the figure 3 .

L'invention propose ainsi une nouvelle méthode de réalisation d'un panneau d'affichage digital 10 de grandes dimensions en mettant en œuvre des profilés en aluminium standards. Cette conception apporte de nombreux avantages tels que la diminution du temps de réalisation, du poids et la réduction de l'encombrement pour le stockage ou le transport des éléments du panneau 10. The invention thus proposes a new method of producing a digital display panel 10 of large dimensions by implementing standard aluminum profiles. This design provides many advantages such as the reduction in production time, in the weight and in the reduction of the bulk for the storage or transport of the elements of the panel 10.

Claims (9)

  1. A method for producing elements of a digital display panel (10) having dimensions of more than 2m by 3m, characterized in that said method comprises the following steps
    - determining (101) a height (h1) and a length (l1) of a display surface (11) of said panel (10) as a function of an envisaged application, said height (h1) and said length (l1) being multiples of a height (h2) and a length (l2) of a standard module (12) intended to be juxtaposed a plurality of times in order to form said display surface (11),
    - segmenting (102) said display surface (11) into a plurality of cabinets (13) in a manner such that each cabinet (13) comprises a whole number of standard modules (12),
    - determining (103) the number and the size of frame uprights (14) which are necessary in order to form a frame for each cabinet (13),
    - determining (104) the number and the size of vertical uprights (15, 16) which are necessary in order to form an internal structure for said cabinets (13),
    - determining (105) the number of bars (17) which are necessary in order to connect said frame uprights and vertical uprights (14 - 16) of said cabinets, the size of said bars (17) being selected as a function of said length (12) of said standard modules; said bars (17) comprising means for fastening said standard modules,
    - determining (106) the number and type of securing elements (25) which are necessary in order to fasten the frame uprights and vertical uprights (14 - 16) and the bars (17) together and to connect the cabinets (13), said securing elements (25) being of the screw/nut type,
    - producing (107) said frame uprights (14) from an aluminium profile, and
    - producing (108) the vertical uprights (15, 16) from an aluminium profile,
    - each profile being selected from standard parts and cut to the desired dimensions if necessary.
  2. The method as claimed in claim 1, in which the step (104) for determining the number and the size of vertical uprights (15, 16) which are necessary in order to form an internal structure of said cabinets (13) is carried out by looking for an alternating sequence of two types of vertical uprights (15, 16), the two types of vertical uprights (15, 16) having distinct structural strength characteristics.
  3. The method as claimed in claim 1 or claim 2, in which the step (107) for producing said frame uprights (14) from an aluminium profile is carried out with a cutting angle which is substantially equal to 45° with respect to the length of said profiled piece.
  4. The method as claimed in one of claims 1 to 3, in which said steps (107, 108) for producing the frame uprights and vertical uprights (14 - 16) are carried out by laser cutting.
  5. The method as claimed in one of claims 1 to 4, in which said frame uprights (14) comprise a groove (21) which is intended for the insertion of at least one sliding door (20).
  6. The method as claimed in claim 5, in which said method comprises the following steps:
    - determining (109) the number and the size of the sliding doors (20) which are necessary in order to close said cabinets (13), and
    - producing (110) the sliding doors (20) from at least one aluminium profile,
    - each profile being selected from standard parts and cut to the desired dimensions if necessary.
  7. The method as claimed in one of claims 1 to 6, in which said method comprises the following steps:
    - determining (111) the number and the size of ventilators (19) which are necessary in order to cool said cabinets (13), and
    - machining (112) said frame uprights (14) in a manner such as to provide an air inlet for said ventilators (19).
  8. The method as claimed in claim 7, in which the ventilators (19) are regularly spaced along the length (12) or two lengths (12) of a module (12).
  9. The method as claimed in claim 7 or claim 8, in which said method comprises a step (113) for mounting said ventilators (19) on said frame uprights (14).
EP18702746.1A 2017-01-12 2018-01-09 Method for creating the elements of a digital display panel Active EP3568845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750279A FR3061795B1 (en) 2017-01-12 2017-01-12 METHOD FOR PRODUCING THE ELEMENTS OF A DIGITAL DISPLAY PANEL
PCT/FR2018/050044 WO2018130774A1 (en) 2017-01-12 2018-01-09 Method for creating the elements of a digital display panel

Publications (2)

Publication Number Publication Date
EP3568845A1 EP3568845A1 (en) 2019-11-20
EP3568845B1 true EP3568845B1 (en) 2021-09-01

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Application Number Title Priority Date Filing Date
EP18702746.1A Active EP3568845B1 (en) 2017-01-12 2018-01-09 Method for creating the elements of a digital display panel

Country Status (3)

Country Link
EP (1) EP3568845B1 (en)
FR (1) FR3061795B1 (en)
WO (1) WO2018130774A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949581A (en) 1997-08-12 1999-09-07 Daktronics, Inc. Display system
US8702048B2 (en) * 2008-05-23 2014-04-22 Daktronics, Inc. Support assembly
US8122627B2 (en) * 2004-09-23 2012-02-28 Daktronics, Inc. Ventilated washable electronic sign display enclosure
US7774968B2 (en) * 2007-04-27 2010-08-17 Daktronics, Inc. Transportable electronic sign display system

Also Published As

Publication number Publication date
FR3061795A1 (en) 2018-07-13
WO2018130774A1 (en) 2018-07-19
EP3568845A1 (en) 2019-11-20
FR3061795B1 (en) 2020-02-07

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