Pendant digital products

Abstract

A hanging type electronic display device (1) which can be reconfigured between a transport configuration and a use configuration, comprises a structure (5), the structure (5) comprising a group of profile plates (5a ... 5d) adjacent to each other, a hinge device between two adjacent profile plates, and a group of electronic display screens (3), one of the electronic display screens in the group of electronic display screens being associated with and assembled to one of the profile plates in the group of profile plates, the hinge device being arranged so that the structure is folded like an accordion in the transport configuration.

Description

Technical Field

[0001] The invention relates to a pendant type electronic display device. Background Art

[0002] At present, pendant-type display devices are in the form of a rollable flexible film that is unfolded by hanging it on the top of a telescopic rod located on a foot. However, the information printed on the flexible film is static and cannot be changed. In order to make these information parts modifiable, a pendant has been manufactured, which includes a known flexible film on which space and means for fixing an electronic display screen are provided. Such a device is described in document WO2014 / 174156. However, this device is unsatisfactory because it requires delicate manipulation of the installation of the pendant and its arrangement, while failing to display complete information that can be modified at will over time. Summary of the invention

[0003] An object of the present invention is to provide a pendant-type display device that can display information that can be changed or modified at will in a simple and easy-to-use manner.

[0004] To this end, according to the present invention, a hanging-type electronic display device is provided, which can be reconfigured between a transport configuration and a usage configuration, the device comprising a structure, the structure comprising a group of profile plates adjacent to each other, a hinge device between two adjacent profile plates, and a group of electronic display screens, one of the electronic display screens in the group of electronic display screens is associated with and assembled to one of the profile plates in the group of profile plates, and the hinge device is arranged so that the structure is folded like an accordion in the transport configuration.

[0005] Advantageously, but optionally, the pendant-type electronic display device according to the present invention has at least one of the following technical features:

[0006] - the articulation device comprises an at least partially elastically deformable elongated element, comprising a first end fixed to one of two adjacent profiled panels, and a second end fixed to the other of the two adjacent profiled panels;

[0007] - said elongated element is positioned in the profile of each of two adjacent panels, said profiles being in a position to engage one another in the use configuration of the device;

[0008] - the hinge device comprises a set of hinge plates, a first end of which is rotatably mounted on one of two adjacent profile plates, and an opposite second end of which is rotatably and slidably mounted on the other of the two adjacent profile plates;

[0009] - the hinge device comprises a housing, the housing comprising an elongated opening for receiving a sliding shaft connected to the second end of a part of the hinged pieces associated with the set of hinged pieces, and a receiving hole for receiving a fixed shaft connected to the first end of another part of the hinged pieces associated with the set of hinged pieces;

[0010] - said device comprises locking means for said use configuration;

[0011] - the locking device comprises a sliding locking element arranged in a groove of a side profile of one of two adjacent panels;

[0012] - the locking device comprises a beater forming device mounted on a side profile or a transverse profile of one of the two adjacent panels, and a retaining shaft mounted on a side profile or a transverse profile of the other of the two adjacent panels, the retaining shaft being arranged to cooperate with the beater forming device in the use configuration of the device;

[0013] - the beater forming device comprises a hook mounted on the control shaft and driven to rotate by the control shaft and translated in a direction perpendicular to the control shaft;

[0014] - the beater forming device also comprises a locking element which allows conditionally controlling and locking the translational movement of the hook relative to the control shaft;

[0015] - the device also includes cover sheet forming means for covering the sides of the profiled plate;

[0016] - the cover sheet forming device covers the side of the electronic display screen connected to the profile plate;

[0017] - the cover sheet forming device is detachably mounted;

[0018] - the cover sheet forming means comprises a magnetic assembly element;

[0019] - the locking device comprises a profile section which is slidingly mounted in the inner section of a side profile of one of two adjacent panels; and,

[0020] The section comprises a pin which extends protrudingly and cooperates with an oblong hole provided in a flank of a side profile of the one of the two adjacent plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features and advantages of the present invention will become apparent from the following description of the embodiments of the present invention. In the accompanying drawings:

[0022] Figure 1is a perspective view of a pendant-type electronic display device according to the present invention in a use configuration;

[0023] Figure 2 yes Figure 1 A perspective view of a pendant-type electronic display device in a transport configuration;

[0024] Figure 3 yes Figure 1 A three-dimensional diagram of the structure of the profile plate of the equipment;

[0025] Figure 4a and 4b yes Figure 1 A three-dimensional detail view of an articulated pendant-type electronic display device in a transport configuration;

[0026] Figure 5 and Figure 6 yes Figure 4a and 4b The articulated stereogram visible in the figure;

[0027] Figure 7 yes Figure 1 A detailed view of a locking device of a pendant-type electronic display device in a use configuration;

[0028] Figure 8a and 8b yes Figure 1 The components of the pendant-type electronic display device are assembled in a use configuration to form a three-dimensional image of a giant display screen;

[0029] Figures 9a to 9e yes Figure 1 A partial cross-sectional view of a variant embodiment of the hinge of a pendant-type electronic display device;

[0030] Fig.10 yes Figures 9a to 9e A side view of an articulated hinge element;

[0031] Fig.11 yes Figures 9a to 9e A bottom view of the hinge;

[0032] Fig.12 yes Figure 1 A partial front view of a variant embodiment of a locking device of a pendant-type electronic display device in a use configuration;

[0033] Fig.13 yes Fig.12 A perspective view of the locking device with the hook retracted;

[0034] Fig.14 yes Fig.12 A perspective view of a portion of a locking device with the hook deployed;

[0035] Fig.15 yes Fig.12 A front view of the locking device with the hook deployed;

[0036] Fig.16 is a partial stereogram of another variant embodiment of a locking device of a pendant-type electronic display device according to the present invention in a locked position; and,

[0037] Fig.17 The invention relates to a locking device for a pendant-type electronic display device. Fig.16 A partial perspective view of a variant embodiment of the invention in an unlocked position.

[0038] For greater clarity, the same or similar elements are denoted by the same reference numerals throughout the drawings. DETAILED DESCRIPTION

[0039] refer to Figures 1 to 3 , a pendant-type electronic display device 1 according to the present invention will be described. Figure 1 The use configuration of the hanging type electronic display device 1 according to the present invention is shown. In this use configuration, the hanging type electronic display device 1 according to the present invention is unfolded vertically in this case. The hanging type electronic display device 1 according to the present invention includes a supporting structure 5, which includes a group of profile plates 5a, 5b, 5c, 5d arranged adjacent to each other, and a group of electronic display screens 3 adjacent to each other, here four. Each electronic display screen 3 in a group of electronic display screens 3 is assembled on a profile plate 5a, 5b, 5c, 5d connected to it in a group of profile plates. For their part, each of the profile plates 5a, 5b, 5c, 5d includes a group of side profiles 9 and transverse profiles 51 assembled together in a manner known per se.

[0040] In the use configuration, the hanging type electronic display device 1 according to the present invention is vertically unfolded here, and a group of profile plates 5a, 5b, 5c, 5d forming the support structure 5 are arranged so that two adjacent plates 5a, 5b, 5c, 5d are stacked on each other. To this end, the hanging type electronic display device 1 according to the present invention includes a group of legs 2, and the first profile plate 5d is placed vertically on the legs 2. Then, the second profile plate 5c is placed vertically on the first profile plate 5d so as to be in the same plane. Then, similarly, the third profile plate 5b is placed vertically on the second profile plate 5c so as to be in the same plane with the first profile plate 5d and the second profile plate 5c. Finally, it is shown here in the figure that the fourth profile plate 5a is placed vertically on the third profile plate 5b so as to be in the same plane with the first profile plate 5d, the second profile plate 5c and the third profile plate 5b. The fourth profile plate 5a includes an end profile 4, which is positioned at the top of the hanging type electronic display device 1 according to the present invention in the use configuration.

[0041] In the transport configuration, the pendant-type electronic display device 1 according to the present invention is folded upon itself. Figure 2 As shown, the support structure 5 is folded in an accordion style, and the set of legs 2 is folded under the first profile plate 5d. The second profile plate 5c is folded on the first profile plate 5d, and the two adjacent plates 5d, 5c are hinged to each other using a hinge device 8, which will be described later and shown in Figures 4 to 5. Figure 6 Similarly, the third profile plate 5b is folded on the second profile plate 5c, and the two adjacent plates 5c, 5b are hinged to each other using the hinge device 8. Similarly, the fourth profile plate 5a is folded on the third profile plate 5b, and the two adjacent plates 5b, 5a are hinged to each other by the hinge device 8. In the transport configuration, the profile plates 5a to 5d are positioned adjacent to each other and parallel to each other.

[0042] Figure 4a and 4b The arrangement of the hanging electronic display device 1 according to the invention in the transport configuration is shown more precisely. In this configuration, the first profile plate 5d and the second profile plate 5c on the one hand and the third profile plate 5b and the fourth profile plate 5a on the other hand are positioned adjacent to each other, parallel to each other, back to back: the back side of the first profile plate 5d (correspondingly, the third profile plate 5b) faces the back side of the second profile plate 5c (correspondingly, the fourth profile plate 5a). The second profile plate 5c and the third profile plate 5b are positioned adjacent to each other, parallel to each other, face to face: the front side of the electronic display screen 3 associated and fixed to the second profile plate 5c faces the front side of the electronic display screen 3 associated and fixed to the third profile plate 5b. Therefore, in the transport configuration, the support structure 5 is accordion-folded, and therefore the hanging electronic display device 1 according to the invention is also accordion-folded.

[0043] The hanging-type electronic display device 1 according to the present invention further comprises cover sheet forming means 6, 7, which covers at least one side of the profile plates 5a to 5d, in particular the side of the side profile 9 of the profile plates 5a to 5d. In a variant embodiment, the cover sheet forming means 6, 7 also covers the side of the electronic display screen 3 associated with the profile plates 5a to 5d. These cover sheet forming means 6, 7 are detachably mounted on the support structure 5. For example, if at least the side profile 9 of the profile plates 5a to 5d is magnetic, the cover sheet forming means 6, 7 comprises a magnetic assembly element, such as a magnet.

[0044] The embodiment of the hinge device 8 for hinge-joining two of the two adjacent panels 5a to 5d will now be described in more detail. Figure 6, the articulated device 8 comprises an elongated element 8. The elongated element here comprises a tension spring 83 and a chain 81. The tension spring 83 comprises a free end 84 and an end 85 connected to one end of the chain 81. The chain 81 also has a free end 82. Therefore, the free end 82 of the chain 81 and the free end 84 of the tension spring 83 form the first and second free ends of the elongated element 8. Therefore, the elongated element 8 is at least partially elastically deformable due to the presence of the tension spring 83. In a variant embodiment, the tension spring 83 is replaced by any equivalent elastic device that allows longitudinal elastic deformation. In other variant embodiments, the chain 81 is replaced by a metal or non-metal cable or any other equivalent device.

[0045] The hinge device 8 is positioned in the side profiles 9 of two mutually adjacent profile panels 5a to 5d, the associated side profiles 9 being to be in a mutually engaged position in the use configuration of the hanging-type electronic display device 1 according to the invention. Figure 5 The positioning of the aforementioned elongated element 8 forming an articulation device positioned in one of the side profiles 9 is shown. In cross section, the side profile 9 has a substantially rectangular shape. It has a central hole 90 defining a housing space, into which the free end 84 of the tension spring 83 of the elongated element 8 is inserted. The fixing of the side profile 9 to this free end 84 is provided. Thus, the second free end of the elongated element 8 is fixed to one of two of the profile plates 5a to 5d adjacent in pairs. Similarly, the free end 82 of the chain 81 is inserted into the central hole 90 of the side profile 9 of the other of the two of the profile plates 5a to 5d adjacent in pairs. The fixing of the side profile 9 to this free end 82 is also provided. Thus, the first free end of the elongated element 8 is fixed to the other of the two of the profile plates 5a to 5d adjacent in pairs. Once in place, the elastically deformable part of the elongated element 8, here the tension spring 83, is tensioned. When the structure 5 and therefore the hanging type electronic display device 1 according to the invention is in the use configuration, this tension makes it possible to hold two of the two adjacent profile plates 5a to 5d relative to each other in a simple manner. On the other hand, when the structure 5 and therefore the hanging type electronic display device 1 according to the invention is in the transport configuration, the chain 81 enables two of the two adjacent profile plates 5a to 5d to be folded relative to each other: in this use configuration of the hanging type electronic display device 1 according to the invention, the flexibility of the chain 81 allows the elongated element 8 to be folded between two of the two adjacent profile plates 5a to 5d, as shown in FIG. Figure 4a and 4b shown.

[0046] In order to stabilize the usage configuration, the hanging-type electronic display device 1 according to the present invention comprises locking means 10, 11. The latter are positioned here at the side profiles 9 of two of the two adjacent profile plates 5a to 5d to be locked. Here, the locking means comprises a locking element 10, which is slidably mounted in a groove 91, which is arranged in the side profile 9 of one of the two of the two adjacent profile plates 5a to 5d: once the hanging-type electronic display device 1 according to the present invention is in the usage configuration, the respective side profiles 9 are in a position of engagement relative to each other, and the locking element 10 is operated in the following manner: the operating device 11 is translated in the groove 91 of one of the side profiles 9 until it is partially inserted into the groove 91 of the other side profile 9 engaged with one of the side profiles 9. In a variant embodiment, the side profile 9 comprises two grooves 91 parallel to each other, and the locking element 10 is arranged in each groove, such as Figure 7 In a variant embodiment, the locking means comprises a "sauterelle" or "grenouille" type of fastening known to a person skilled in the art. In another variant embodiment, the locking means comprises an electromagnetic locking means.

[0047] exist Figures 12 to 15 In the figure, a second embodiment of a locking device 800 for a use configuration of a pendant-type electronic display device 1 according to the present invention is shown. The locking device 800 here comprises two parts in the form of boxes 810, 820. Each part 810, 820 is intended to be installed in a side profile 9 or a transverse profile 51 forming two adjacent profile plates 5a to 5d to be locked respectively. The box 810 forming the first part is hollow and has an open side 815 that allows access to the interior of the box 810. The box 810 also includes a retaining shaft 811 that passes through the interior of the box 810.

[0048] Similarly, the box 820 forming the second part is hollow and has an open side 825 that allows access to the interior of the box 820. The box 820 also includes a control shaft 821 that passes through the interior of the box 820 and is rotatably mounted in the box 820. The box 820 also includes a beater forming device 822, 823 mounted on the control shaft 821 so as to be driven by the control shaft 821 and controlled between an unlocked position and a locked position, the unlocked position being as shown in FIG. Fig.13 As shown, the beater forming devices 822 and 823 are completely contained in the box body 820, and the locking position is as shown in FIG. Fig.12 , 14 15, wherein the beater forming devices 822, 823 partially extend from the side 825 of the box body 820. Here, as Fig.14 As shown, the control shaft 821 is operated by means of a so-called "hexagonal wrench" entering the hexagonal cavity.

[0049] Here, the beater forming device 822, 823 includes a hook 822 and a locking element 823. The locking element 823 allows the hook 822 to be moved from the hook 822 when the beater forming device 822, 823 is operated. Fig.15 The hook 822 ' shown in the dotted line of the figure is pulled back to the locked position shown in the solid line of the same figure, and vice versa. In this case, the position change of the hook occurs according to the translation perpendicular to the control axis 821.

[0050] In use, the two boxes 810 and 820 face each other so that their sides 815 and 825 extend towards each other, such as Fig.12 or Fig.13 As shown. Once in the corresponding position of the two boxes 810 and 820, the beater forming devices 822, 823 are operated by means of the K spanner in combination with the control shaft 821. Initially, the beater forming devices 822, 823 are moved from the unlocked position to the locked position, the hook 822 in the retracted position (hook 822' in dashed line) being held by the locking element 823, which protrudes in the handle of the hook 822. The locking element 823 then comes to bear against the retaining axis 811 of the box 810, pushing the locking element 823. This has the effect of releasing the hook 822, which then moves about the retaining axis 811 into the locked position (hook 822 in solid line): thus, the side profiles 9 or transverse profiles 51 forming two adjacent profile plates 5a to 5d to be locked, respectively, come to bear against each other and are thus held in a reliable manner.

[0051] On the contrary, the unlocking operation consists, firstly, in moving the hook 822 from its locking position to its retracted position (hook 822' in dashed line), then blocking it in this retracted position with the locking element 823, which thereby protrudes again in the handle of the hook 822, and then the beater forming means 822, 823 are repositioned inside the box 820. As is evident from the foregoing, the locking element 823 allows the translational movement of the hook 822 relative to the control shaft 821 to be controlled and locked conditionally.

[0052] exist Fig.16 and 17 In the third embodiment of the locking device 900 of the use configuration of the hanging type electronic display device 1 according to the present invention is shown. In the use configuration of the hanging type electronic display device 1 according to the present invention, the locking device 900 allows two locking of two adjacent panels 5a to 5d. Panels 5a and 5b equipped with the locking device 900 are shown here. The following applies to the locking of panels 5b and 5c and panels 5c and 5d.

[0053] Here, the locking device 900 comprises a profile section 901, which is solid or hollow, and the cross section of which has an external shape complementary to the internal cross section of the side profile 9. The section 901 is slidably mounted in the profile 9 of the plate 5b. The sliding movement is performed along the longitudinal axis of the side profile 9. In order to limit this sliding movement, the locking device 900 comprises a pin 902 and an elongated hole 903. The pin 902 is placed on the section 901, protruding and extending from the side of the section 901. The elongated hole 903 is formed in the thickness of the side of the side profile 9 of the plate 5b above the plate 5a in the use configuration of the hanging type electronic display device 1 according to the present invention. In particular, the elongated hole 903 is located at the end of the side profile 9 of the plate 5b opposite to the side profile 9 of the adjacent plate 5a in the use configuration of the hanging type electronic display device 1 according to the present invention. The pin 902 cooperates with the elongated hole 903, the length of which determines the amplitude of the sliding movement of the section 901 in the side profile 9 of the plate 5b.

[0054] In the use configuration of the hanging type electronic display device 1 according to the present invention, as Fig.16 As shown, a portion of the segment 901 slides by sliding in the inner section of the side profile 9 of the adjacent panel located below the panel 5b. The pin 902 abuts against the end below the long hole 903. The panel 5b is then locked in the use position on the adjacent panel 5a and locked together with the adjacent panel 5a. This locking occurs automatically due to the weight of the earth acting on the segment 901 entering the locked position, as shown in FIG. Fig.16 shown.

[0055] In order to allow the return to the transport configuration of the pendant-type electronic display device 1 according to the present invention, the locking device 900 is positioned at Fig.17 The section 901 is raised to the upper end of the pin 902 against the slot 903, and then the section 901 is completely disengaged from the side profile 9 of the adjacent panel 5a and completely engaged in the side profile 9 of the panel 5b by manually pressing, for example, on the pin 902. For the transport configuration of the hanging electronic display device 1 according to the invention, the panel 5b can then be folded onto the panel 5a.

[0056] In an alternative embodiment, the sliding movement of segment 901 may be motorized.

[0057] Reference now Figure 8a and 8b, multiple hanging electronic display devices 1 according to the present invention can be connected to form a huge hanging 100. To this end, it is only necessary to join different hanging electronic display devices 1 according to the present invention and assemble them two by two through the cover forming devices 6 and 7, and then use them as an assembling device for two hanging electronic display devices 1 according to the present invention. Therefore, in operation, a huge display surface 30 is obtained simply and quickly. In a variant embodiment, two adjacent hanging electronic display devices 1 according to the present invention use the aforementioned reference Figures 12 to 15 The locking device 800 of the second embodiment is described as being assembled.

[0058] Reference Figures 9a to 11 A second embodiment of an articulation device 18 which allows two adjacent panels 5a to 5d to be articulated is described. Panels 5a and 5b are shown here equipped with an articulation device 18. The following applies to the articulation of panels 5b and 5c and panels 5c and 5d.

[0059] The articulation device 18 comprises identical first and second housings 181. Here, the first housing 181 is mounted and fixed in the upper transverse profile 51 of the plate 5a. Here, the second housing 181 is mounted and fixed in the lower transverse profile 51 of the plate 5b adjacent to the plate 5a, the lower transverse profile 51 of the plate 5b extending parallel to and facing the upper transverse profile 51 of the plate 5a. Here, the fixing of each housing 181 to the corresponding transverse profile 51 is carried out by means of a panel 188, the possible profiles of which are as follows: Fig.11 As shown. Each housing 181 includes a rectangular long opening 182, which is provided on each side wall of the housing 181 extending relatively and at a certain distance from each other. A sliding shaft 183 is installed in these long openings 182 in a translational manner. On the other hand, each housing 181 also includes a receiving hole for fixedly or rotationally installing a fixed shaft 184, which is offset and parallel to the aforementioned shaft 183. In general, the long opening 182 is located away from the instantaneous rotation axis of the hinge device 18, while the receiving hole of the fixed shaft 184 is located close to the instantaneous rotation axis.

[0060] Connecting the two housings 181, the articulated device 18 comprises a set of articulated tabs 180, eight in number here, parallel to one another, offset in a zigzag pattern relative to one another in their planes, and mounted rotatably relative to one another in their planes along or on an axis of rotation 185, the axis of rotation 185 being parallel to the instantaneous axis of rotation of the articulated device 18. Each articulated tab 180 has the overall shape of an "n" or clip, as in Fig.10As shown, it includes two branches, which are vertical in the figure, and the bottom has a horizontal part with a length of L. At the free end of the branch, the hinge piece 180 has through holes for sliding fixed shafts 184 and 183 respectively. The bottom of the hinge piece 180 also includes a third through hole for passing a rotation shaft 185, which can rotatably connect each hinge piece 180 in a set of hinge pieces 180 of the hinge device 18. The through holes are arranged on the projection of the straight line passing through the horizontal part of the bottom length L:

[0061] The orthogonal projection of the through hole of the rotation axis 185 is the midpoint of the horizontal portion of length L;

[0062] The distance between the orthogonal projection of the through hole of the fixed shaft 184 and the orthogonal projection of the through hole of the rotating shaft 185 is smaller than the distance between the orthogonal projection of the through hole of the sliding shaft 183 and the orthogonal projection of the through hole of the rotating shaft 185, which in particular allows the hinge pieces 180 to be installed in a zigzag offset relative to each other.

[0063] The hinge piece 180 is assembled as follows: the through hole of the fixed shaft 184 of the hinge piece 180 receives the fixed shaft 184 of one of the two housings 181, and the through hole of the sliding shaft 183 receives the sliding shaft 183 of the other of the two housings 181. The next adjacent hinge piece 180 is installed in another way: the through hole of the fixed shaft 184 of the hinge piece 180 receives the fixed shaft 184 of the other of the two housings 181, and the through hole of the sliding shaft 183 receives the sliding shaft 183 of the one of the two housings 181. The same is true for the others.

[0064] The operation of the articulated device 18 just described is Figures 9a to 9e Shown in. Figure 9a The deployed position of adjacent panels 5a and 5b is shown, Fig.9e The folded position of the two plates is shown. At the beginning of the movement, approximately Figures 9a to 9c As shown, the instantaneous rotation axis of the hinge device 18 is basically located at the two corners facing the electronic display screen 3. Then, the movement continues. Figure 9d In the embodiment, the instantaneous rotation axis of the hinge device 18 is "projected" away from the electronic display screen 3 until Fig.9e The movement shown ends. At the end of the movement, the instantaneous axis of rotation of the articulated device 18 is located at the orthogonal projection of the through hole of the aforementioned rotation axis 185, i.e. the midpoint of the horizontal portion of length L. Therefore, this structure of the articulated device 18 allows the movement between the two electronic display screens 3 mounted on the plates 5a and 5b to occur without collision, while ensuring that the movement is constant, reliable and repeatable. The length L is selected so that at the end of the movement, the electronic display screens 3 of the plates 5a and 5b extend parallel to each other, facing each other and at a certain distance from each other, and when transporting the pendant-type electronic display device 1 according to the present invention, the articulated devices 18 maintain this distance due to their structure.

[0065] Of course, many modifications can be made to the invention without departing from the scope of the invention.

Claims

1. A pendant-type electronic display device (1), capable of being reconfigured between a transport configuration and a use configuration, the electronic display device comprising: A structure (5), wherein the structure (5) comprises a group of profile plates (5a...5d), wherein the profile plates of the group of profile plates are adjacent to each other in pairs; An articulation device (8; 18) between two adjacent profiled panels for each pair of adjacent profiled panels; as well as a set of electronic display screens (3), one of the set of electronic display screens being associated with and mounted to a corresponding profile sheet of the set of profile sheets, wherein the articulation means are arranged so that in the transport configuration the structure is accordion-folded, The hinge device (18) of each pair of adjacent profile plates comprises a set of hinge plates (180), a first end of which is rotatably mounted on one of the pair of adjacent profile plates, and an opposite second end of which is rotatably and slidably mounted on the other of the pair of adjacent profile plates. Each of the hinged pieces (180) has an overall "n" or clip shape and includes two branches and a bottom, wherein the bottom has a horizontal portion with a length of L, and the length L is selected so that when the structure is folded in an accordion style, two adjacent electronic display screens (3) extend parallel to each other, facing each other and at a certain distance from each other.

2. The electronic display device according to claim 1, wherein: The hinge device of each pair of adjacent profile plates comprises an at least partially elastically deformable slender element (8), the slender element (8) comprising a first end (82) and a second end (84), the first end (82) being fixed to one of the two adjacent profile plates in the pair, and the second end (84) being fixed to the other profile plate of the two adjacent profile plates in the pair.

3. The electronic display device according to claim 2, wherein: The elongated elements are positioned within profiles (9) of the profile plates of a corresponding pair of adjacent profile plates, the profiles (9) being intended to be in a mutually engaging position in the use configuration of the device.

4. The electronic display device according to claim 1, wherein: The hinge device of each pair of adjacent profile plates includes a shell (181), which includes: a long opening (182) for receiving a sliding shaft (183) connected to the second end of a part of the hinge plates associated with the group of hinge plates; and a receiving hole for receiving a fixed shaft (184) connected to the first end of another part of the hinge plates associated with the group of hinge plates.

5. The electronic display device according to claim 1, wherein: The electronic display device comprises locking means (10; 800; 900) for the use configuration.

6. The electronic display device according to claim 5, wherein: The locking device comprises a sliding locking element (10) which is arranged in a groove (91) of a side profile of one of the profile plates of a pair of adjacent profile plates.

7. The electronic display device according to claim 5, wherein: The locking device (800) comprises: a beater forming device (822, 823), which is mounted on the side profile (9) or the transverse profile (51) of one of the two profile plates of the pair of adjacent profile plates; and a retaining shaft (811), which is mounted on the side profile or the transverse profile of the other of the two profile plates of the pair of adjacent profile plates, and the retaining shaft is arranged to cooperate with the beater forming device in the use configuration of the electronic display device.

8. The electronic display device according to claim 7, wherein: The beater forming device comprises a hook (822, 822') installed on the control shaft and driven to rotate by the control shaft (821) and translate in a direction perpendicular to the control shaft.

9. The electronic display device according to claim 8, wherein: The beater forming device also comprises a locking element (823) which allows conditional control and locking of the translational movement of the hook relative to the control shaft.

10. The electronic display device according to claim 1, wherein: The electronic display device also includes a cover sheet forming device (6, 7) for covering the side surfaces of the profile plate.

11. The electronic display device according to claim 10, wherein: The cover sheet forming device covers the side surface of the electronic display screen connected to the profile plate.

12. The electronic display device according to claim 10, wherein: The cover sheet forming device is detachably mounted.

13. The electronic display device according to claim 12, wherein: The cover sheet forming device includes a magnetic assembly element.

14. The electronic display device according to claim 5, wherein: The locking device (900) comprises a profile section (901) which is slidably mounted in the inner cross section of a side profile (9) of one of the two profile plates of a pair of adjacent profile plates.

15. The electronic display device according to claim 14, wherein: The profile section (901) includes a pin (902) which protrudes and extends and cooperates with a long hole (903) formed in the side surface of the side profile (9) of the one of the two profile plates of the pair of adjacent profile plates.

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