CN212966874U - Electronic signboard - Google Patents

Abstract

The utility model provides an electronic signboard relates to and shows technical field, include: display screen, the display screen includes: the display panel comprises a driving module, a first display panel and a second display panel which are arranged in a back-to-back mode; the display screen is detachably connected with the base, and a power supply module for supplying power to the driving module is arranged in the accommodating cavity; the drive module is configured to: when the driving module is conducted with the power supply module, the first display panel and the second display panel are driven to respectively display the picture. The utility model discloses an electronic signboard, it has two-sided display function to, display screen and base can be dismantled, are favorable to accomodating and transporting.

Description

Electronic signboard

Technical Field

The utility model relates to a show technical field, concretely relates to electronic signboard.

Background

The electronic signboard (for example, an electronic table board) uses an electronic ink screen as a display panel to replace a traditional paper table board and a traditional liquid crystal table board, and can provide more convenient conference work service for users.

The electronic ink screen is a screen using electronic ink, and is also called electronic paper display technology. The electronic ink screen is a special display screen, which has the characteristics of ultra-light weight, thinness, rewritability, portability, capability of keeping display when power is off, and the like. The electronic Ink screen mainly comprises six different types of technologies, including an E-Ink microcapsule technology, a SiPix microcup technology, a Bridgestone electronic liquid powder technology, a cholesterol liquid crystal display technology, a micro electro mechanical system technology and an electrowetting technology.

Present electronic ink screen is comparatively heavy, is unfavorable for accomodating and transporting.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide an electronic signboard.

In order to achieve the above object, the present invention provides an electronic signboard, wherein, include:

a display screen, the display screen comprising: the display panel comprises a driving module, a first display panel and a second display panel which are arranged in a back-to-back mode;

the display screen is detachably connected with the base, and a power supply module for supplying power to the driving module is arranged in the accommodating cavity;

the drive module is configured to: and when the driving module is communicated with the power supply module, the first display panel and the second display panel are driven to respectively display pictures.

Optionally, the display screen further includes an installation frame, and the installation frame includes: the mounting plate comprises a mounting plate and a frame body surrounding the mounting plate;

the first display panel and the second display panel are respectively arranged on two sides of the mounting plate;

the driving module comprises a first circuit board, a first connector and a second connector, wherein the first connector and the second connector are arranged on the first circuit board, the first connector and the second connector are respectively positioned on two sides of the first circuit board, the first circuit board is arranged between the mounting plate and the first display panel, and the first circuit board is connected with the first display panel through the first connector;

the mounting plate is provided with a first mounting hole, and the second connector penetrates through the first mounting hole and is connected with the second display panel.

Optionally, the driving module further includes a third connector, a second mounting hole is formed in the frame, a first end of the third connector is connected to the first circuit board, and a second end of the third connector extends out of the second mounting hole;

the base is provided with a groove, and the display screen is inserted into the groove; the depth direction of the groove is the same as the height direction of the base, and a third mounting hole communicated with the accommodating cavity is formed in the bottom wall of the groove;

the power supply module comprises a power supply and a second circuit board, a fourth connector is arranged on the base and is used for being connected with the third connector in a matched mode, the second circuit board is connected with the power supply, a power supply end is arranged on the second circuit board, a second end of the fourth connector is connected with the power supply end, and a first end of the fourth connector extends out of the third mounting hole.

Optionally, the third connector is in interference connection with the second mounting hole.

Optionally, the base comprises an outer shell and an inner liner disposed in the outer shell;

the inner liner and the outer shell enclose the accommodating cavity, the groove is formed in the inner liner, an opening is formed in the outer shell corresponding to the groove, and the groove is exposed out of the opening.

Optionally, the width of the groove is greater than the thickness of the display screen;

the side wall of the groove is provided with a plurality of first raised lines protruding out of the side wall of the groove, each first raised line is provided with a first face and a second face which are opposite to each other, the first faces are fixed on the side wall of the groove, and the distance between the first faces and the second faces is gradually increased along the direction close to the bottom wall of the groove.

Optionally, all be provided with on two relative lateral walls of recess first sand grip, and on two lateral walls first sand grip is adjusted well one by one, two of adjusting well mutually interval between the bottom of first sand grip is less than the thickness of display screen.

Optionally, the electronic signboard further includes at least one positioning assembly, the positioning assembly includes a matching positioning hole and a positioning column, one of the positioning hole and the positioning column is disposed on the bottom wall of the groove, and the other is disposed on the frame body.

Optionally, a second protruding strip is disposed on a side wall of the positioning hole, the second protruding strip has a first surface and a second surface opposite to each other, the first surface is fixed on the side wall of the positioning hole, and a distance between the first surface and the second surface gradually increases along a direction close to the bottom of the positioning hole.

Optionally, the electronic signboard further includes an update module and a communication module, the update module being configured to: responding to the updating operation of a user, and sending an enabling signal to the communication module; the communication module is configured to: responding to the enabling signal, searching an updating instruction, and sending the updating instruction to a driving module when the updating instruction is searched, so that the driving module can control the first display panel and the second display panel to update the picture according to the updating instruction.

Optionally, an indication structure is further disposed on the second circuit board, and the indication structure is configured to: when the power supply module is conducted with the driving module, an indication signal is output.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a display screen and a base connection provided by some embodiments of the present invention;

fig. 2 is a schematic diagram of a display screen and a base provided in accordance with some embodiments of the present invention;

fig. 3 is an exploded view of a display screen provided by some embodiments of the present invention;

fig. 4 is a schematic view of a mounting frame provided with a driving module according to some embodiments of the present invention;

fig. 5a to 5c are schematic views of a base according to some embodiments of the present invention;

fig. 6a is a schematic view illustrating a connection between a driving module and a power supply module according to an embodiment of the present invention;

FIG. 6B is a schematic view of region B in FIG. 6 a;

FIG. 7 is a schematic view of region A of FIG. 2;

fig. 8 is a schematic diagram of an indication structure provided by some embodiments of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Unless otherwise defined, technical or scientific terms used in the embodiments of the present invention should have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The current electronic signboard usually adopts the electronic ink screen to show, in order to realize two-sided demonstration, can adopt following two kinds of modes:

in one example, the electronic signboard comprises two electronic ink screens, wherein a driving module and a power supply module for supplying power to the driving module are arranged in each of the two electronic ink screens, and the two electronic ink screens respectively respond to the control of the respective driving module to work. The two electronic ink screens are combined together through the support to achieve double-sided display. In this example, the integrity of the electronic sign is poor and the cost of using two independently driven electronic ink screens is high.

To improve the integrity of the electronic signboard, in another example, two electronic ink screens are integrated together, specifically: the electronic signboard includes two electronic ink screens and base. The two electronic ink screens are arranged back to back and integrated in one display screen. The display screen and the base form an integrated structure, a driving module and a power supply module are arranged in the base, and the two electronic ink screens work through the same driving module and the same power supply module. In this example, the base of the electronic signboard is massive and has an integral structure with the display screen, which is not beneficial for storage and transportation.

In view of this, the embodiment of the present invention provides an electronic signboard, fig. 1 is the utility model discloses a display screen and base that some embodiments provided connect the schematic diagram, fig. 2 is the utility model discloses a display screen and base detached schematic diagram that some embodiments provided combine fig. 1 and fig. 2 to show, and this electronic signboard includes: a display screen 1 and a base 2 having a receiving cavity. Wherein, display screen 1 includes: the display device comprises a driving module, a first display panel and a second display panel which are arranged in a back-to-back mode. The display screen 1 is detachably connected with the base 2, and a power supply module used for supplying power to the driving module is arranged in the accommodating cavity. The drive module is configured to: when the driving module is conducted with the power supply module, the first display panel and the second display panel are driven to respectively display the picture.

In this embodiment, the first display panel and the second display panel are disposed opposite to each other, which means that the display directions of the first display panel and the second display panel are opposite. For example, the display surface of the first display panel is set to a first direction in fig. 1, and the display surface of the second display panel is set to a second direction opposite to the first direction in fig. 1. When the display screen 1 is connected with the base 2, a conductive path is formed between the driving module in the display screen 1 and the power supply module in the base 2, and at this time, the power supply module can supply power to the driving module. For example, the driving module includes an input end (for example, the third connector C3 in fig. 2, see the following description specifically, which is not described herein first), an output end (for example, the fourth connector C4 in fig. 2, see the following description specifically, which is not described herein first) is provided on the base 2, and when the display screen 1 is connected to the base 2, the input end on the display screen 1 is connected to the output end on the base 2 in a matching manner, so that the driving module is conducted with the power supply module. When the power supply module is conducted with the driving module, the driving module can drive the first display panel and the second display panel to respectively display the picture. In this embodiment, the driving module may drive the first display panel and the second display panel to display the same picture or display different pictures. For example, the driving module may provide a first display signal to the first display panel and a second display signal to the second display panel. When the first display signal and the second display signal are the same, the first display panel and the second display panel display the same picture; when the first display signal and the second display signal are different, the first display panel and the second display panel display different pictures.

Adopt the utility model discloses electronic signboard, it has two-sided display function to, display screen 1 and base 2 can be dismantled, are favorable to accomodating and transporting.

The electronic signboard according to an embodiment of the present invention will be described in detail with reference to fig. 2 to 8. Fig. 3 is an exploded view of a display screen according to some embodiments of the present invention, and fig. 4 is a schematic view of an installation frame provided with a driving module according to some embodiments of the present invention. As shown in fig. 3 and 4, in some embodiments, the display screen 1 further includes a mounting frame 14, where the mounting frame 14 includes: a mounting plate 141 and a frame 142 surrounding the mounting plate 141. The first display panel 12 and the second display panel 13 are respectively disposed at both sides of the mounting plate 141. The driving module 11 includes a first circuit board P1, and a first connector C1 and a second connector (not shown in the drawings) disposed on the first circuit board P1, the first connector C1 and the second connector being respectively located at both sides of the first circuit board P1, a first circuit board P1 disposed between the mounting plate 141 and the first display panel 12, and a first circuit board P1 connected to the first display panel 12 through the first connector C1. The mounting plate 141 is provided with a first mounting hole (not shown), through which the second connector is connected to the second display panel 13.

In the present embodiment, the first circuit board P1 may be connected to the mounting board 141 by a snap. Both the first display panel 12 and the second display panel 13 may be bonded to the mounting frame 14 by the first adhesive tape 15, specifically, the frame 142 is provided with a bone position bonding surface corresponding to an edge region of the first display panel 12 and the second display panel 13, and the first display panel 12 and the second display panel 13 may be bonded to the bone position of the frame 142. The side of the first display panel 12 away from the mounting plate 141 and the side of the second display panel 13 away from the mounting plate 141 are both provided with cover plates 16, and both the cover plates 16 can be bonded with the mounting frame 14 through the second adhesive tapes 17. The two cover plates 16 respectively space the first display panel 12 and the second display panel 13 from the outside, thereby protecting the first display panel 12 and the second display panel 13. The material of the cover plate 16 may include a light-transmitting material such as glass.

In some embodiments, the driving module 11 further includes a third connector C3, the frame 142 is provided with a second mounting hole (not shown), a first end of the third connector C3 is connected to the first circuit board P1, and a second end of the third connector C3 protrudes from the second mounting hole. Fig. 5a to 5c are schematic diagrams of a base provided by some embodiments of the present invention, fig. 6a is a schematic diagram of a driving module connected to a power supply module provided by an embodiment of the present invention, and fig. 6B is a schematic diagram of a region B in fig. 6a, wherein, for clarity of illustration, the power supply module 21 in the base 2 is omitted in fig. 5B and 5c, and the inner liner 24 is placed above the outer shell 23 for schematic illustration, but in an actual product, the inner liner 24 is actually disposed in the outer shell 23. A portion of the fourth connector C4 is omitted from fig. 6a and 6 b. As shown in fig. 2 and fig. 5a to 6b, the base 2 is provided with a groove 22, and the display screen 1 is configured to be inserted into the groove 22. The depth direction of the groove 22 is the same as the height direction of the base 2, and a third mounting hole H1 communicating with the accommodating chamber is provided on the bottom wall of the groove 22. The power supply module 21 includes a power supply V1 and a second circuit board P2, a fourth connector C4 is further disposed in the base 2 for being connected with the third connector C3 in a matching manner, the second circuit board P2 is connected with the power supply V1, a power supply terminal (not shown in the figure) is disposed on the second circuit board P2, a second end of the fourth connector C4 is connected with the power supply terminal, and a first end of the fourth connector C4 extends out of the third mounting hole H1.

In this embodiment, the power source V1 may include a plurality of button cells. The third connector C3 and the fourth connector C4 each comprise a Pogopin connection. Specifically, the Pogopin connecting piece comprises a needle tube, a thimble and a spring, wherein the spring is arranged in the needle tube, one end of the spring is connected with the bottom end of the needle tube, the other end of the spring is connected with the bottom of the thimble, and the thimble can stretch into or stretch out of the needle tube. Wherein the second ends of the third connector C3 and the fourth connector C4 may refer to the bottom ends of the needles of the Pogopin connectors, and the first ends of the third connector C3 and the fourth connector C4 may refer to the top ends of the spikes of the Pogopin connectors.

In the present embodiment, the first circuit board P1 is provided with a power inlet V2, and the first end of the third connector C3 is connected to the first circuit board P1 through the power inlet V2. For example, the pins of the Pogopin connectors of the third connector C3 are brought into contact with the power inlet V2. Furthermore, the thimble of the Pogopin connecting piece can be pressed into the needle tube by the power supply access end V2, so that poor contact between the thimble and the power supply access end V2 is avoided. The second end of the fourth connector C4 may be soldered to the power supply terminal of the second circuit board P2. As shown in fig. 6b, when the display screen 1 is inserted into the groove 22, the first end of the fourth connector C4 contacts the second end of the third connector C3, so that the third connector C3 and the fourth connector C4 are mated and connected.

Fig. 7 is a schematic view of the area a in fig. 2, and in some embodiments, as shown in fig. 7, the third connector C3 is in interference fit with the second mounting hole. Specifically, the third connector C3 may include a plurality of Pogopin connectors C31 and fasteners C32, the plurality of Pogopin connectors C31 are fixed together by the fasteners C32, and the fasteners C32 are disposed in the second mounting holes and are in interference connection with the second mounting holes, so that the third connector C3 is fixed to the frame 142.

As shown in fig. 2, 5 a-5 c, in some embodiments, the base 2 includes an outer shell 23 and an inner liner 24 disposed within the outer shell 23. The inner liner 24 and the outer shell 23 enclose a containing cavity, the groove 22 is arranged on the inner liner 24, an opening 231 is arranged on the outer shell 23 corresponding to the position of the groove 22, and the opening 231 exposes the groove 22.

In this embodiment, the housing 23 may include a case 232 and a bottom plate 233 at the bottom of the case 232. The power supply V1 may be adhered to the side of the inner liner 24 facing the bottom plate 233 by an adhesive material, and the second circuit board P2 is disposed on the side of the inner liner 24 facing the bottom plate 233 and fixed to the housing 23 by screws.

In some embodiments, the width of the groove 22 is greater than the thickness of the display screen 1. The side wall of the groove 22 is provided with a plurality of first protruding strips 221 protruding from the side wall of the groove 22, the first protruding strips 221 have a first surface and a second surface which are opposite, the first surface is fixed on the side wall of the groove 22, and the distance between the first surface and the second surface is gradually increased along the direction close to the bottom wall of the groove 22.

In this embodiment, a draft angle may be provided between the second surface and the first surface of the first protruding strip 221, thereby facilitating insertion and extraction of the display screen 1.

In some embodiments, the two opposite sidewalls of the groove 22 are provided with the first protruding strips 221, and the first protruding strips 221 on the two sidewalls are aligned one by one, and the distance between the bottom ends of the two aligned first protruding strips 221 is smaller than the thickness of the display screen 1, so that after the display screen 1 is inserted into the groove 22, the two first protruding strips 221 can be in interference fit with the display screen 1, and the display screen 1 is tightly fixed in the groove 22.

In some embodiments, the electronic signboard further includes at least one positioning component, the positioning component includes a matching positioning hole 31 and a positioning post 32, one of the positioning hole 31 and the positioning post 32 is disposed on the bottom wall of the groove 22, and the other is disposed on the frame 142.

In this embodiment, through setting up locating component, be favorable to the counterpoint installation of display screen 1 and recess 22, simultaneously, locating component can also further improve the stability behind display screen 1 insertion recess 22.

In some embodiments, the sidewall of the positioning hole 31 is provided with a second rib, the second rib has a first surface and a second surface opposite to each other, the first surface is fixed on the sidewall of the positioning hole 31, and the distance between the first surface and the second surface gradually increases along the direction close to the bottom of the positioning hole 31.

In this embodiment, a draft angle may be provided between the second surface and the first surface of the second protrusion, so as to facilitate insertion and extraction of the positioning column 32.

In some embodiments, the electronic signboard further includes two positioning components, wherein the positioning hole 31 of one positioning component is disposed on the bottom wall of the groove 22, and the positioning column 32 is disposed on the frame 142; the positioning hole 31 of the other positioning component is arranged on the frame 142, and the positioning column 32 is arranged on the bottom wall of the groove 22. The positioning hole 31 formed in the bottom wall of the groove 22 may be a square positioning hole, and the positioning post 23 matched with the positioning hole 31 and disposed on the frame 142 may be a square positioning post; the positioning hole 31 disposed on the frame 142 may be a circular positioning hole, and the positioning post 23 disposed on the bottom wall of the groove 22 and matched with the positioning hole 31 may be a circular positioning post. A plurality of second protruding strips (not shown) are disposed in the positioning holes 31 disposed on the bottom wall of the groove 22, and the plurality of second protruding strips are aligned in pairs. The distance between the bottom ends of the two opposite second protruding strips is smaller than the thickness of the positioning column 32, so that after the positioning column 32 is inserted into the positioning hole 31, the two second protruding strips can be in interference fit with the positioning column 32, and the positioning column 32 is tightly fixed in the positioning hole 31.

In some embodiments, the first display panel 12 and the second display panel 13 are both electronic ink display panels. The electronic signboard further comprises an update module (not shown in the figures) and a communication module 5, the update module being configured to: responding to the updating operation of the user, and sending an enabling signal to the communication module 5; the communication module 5 is configured to: in response to the enable signal, an update instruction is searched, and when the update instruction is searched, the update instruction is sent to the driving module 11, so that the driving module 11 controls the first display panel 12 and the second display panel 13 to perform screen update according to the update instruction.

As shown in fig. 6a, in some embodiments, the communication module 5 may include an antenna, the communication module 5 is connected to the driving module 11, and the communication module 5 and the first display panel 12 and the second display panel 13 do not overlap in the thickness direction of the electronic signboard, so as to prevent the first display panel 12 and the second display panel 13 from interfering with the signal of the communication module 5. The update module is further configured to: an enable signal is sent to the communication module 5.

Fig. 8 is a schematic diagram of an indication structure provided in some embodiments of the present invention, and as shown in fig. 2, fig. 5b, fig. 5c and fig. 8, in some embodiments, an indication structure 4 is further disposed on the second circuit board P2, and the indication structure 4 is configured to: when the power supply module 21 is conducted with the driving module 11, an indication signal is output.

In this embodiment, the indication signal may be an optical signal or a sound signal, for example, when the power supply module 21 is conducted with the driving module 11, the indication structure 4 may flash to prompt the user that the power supply module 21 is conducted with the driving module 11; if the indication structure 4 does not flash, it indicates that the power supply module 21 and the driving module 11 are not conducted, and the user can insert the display screen 1 into the groove 22 again until the indication structure 4 flashes.

In the present embodiment, the indicating structure 4 may include a key S and at least one indicator light L disposed on the second circuit board P2, the key S may be made of a transparent material, and the key S includes a key body S1 and at least one connection sleeve S2 disposed under the key body S1. The top of the outer shell 23 is provided with a fourth mounting hole H2, the key body S1 can extend out of the fourth mounting hole H2, and the connecting sleeve S2 is sleeved on the indicator light L, so that light emitted by the indicator light L can be incident into the key S.

Specifically, in some embodiments, the top of the housing 23 is divided by the opening 231 into two third sides, which are oblique to the plane of the bottom plate 233. A fourth mounting hole H2 is provided on one of the third faces. One end of the key body S1, which is far away from the connecting sleeve S2, is provided with a fourth surface, and the fourth surface and a third surface provided with a fourth mounting hole H2 can be parallel to each other, so that the integrity of the portion, protruding from the fourth mounting hole H2, of the key body S1 and the outer shell 23 is improved.

In some embodiments, the key S is further connected to the gating module on the second circuit board P2, and when the user presses the key S (i.e. performs the updating operation as described above), the updating module may send an enabling signal to the communication module 5.

In some embodiments, as shown in fig. 5c, an adhesive pad 6 is disposed on the base 2 to prevent the base 2 from being damaged by a contact surface with the base.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (11)

1. An electronic signboard, comprising:

a display screen, the display screen comprising: the display panel comprises a driving module, a first display panel and a second display panel which are arranged in a back-to-back mode;

the display screen is detachably connected with the base, and a power supply module for supplying power to the driving module is arranged in the accommodating cavity;

the drive module is configured to: and when the driving module is communicated with the power supply module, the first display panel and the second display panel are driven to respectively display pictures.

2. The electronic signboard of claim 1 wherein the display screen further comprises a mounting frame, the mounting frame comprising: the mounting plate comprises a mounting plate and a frame body surrounding the mounting plate;

the first display panel and the second display panel are respectively arranged on two sides of the mounting plate;

the driving module comprises a first circuit board, a first connector and a second connector, wherein the first connector and the second connector are arranged on the first circuit board, the first connector and the second connector are respectively positioned on two sides of the first circuit board, the first circuit board is arranged between the mounting plate and the first display panel, and the first circuit board is connected with the first display panel through the first connector;

the mounting plate is provided with a first mounting hole, and the second connector penetrates through the first mounting hole and is connected with the second display panel.

3. The electronic signboard of claim 2 wherein the driving module further comprises a third connector, the frame body is provided with a second mounting hole, a first end of the third connector is connected to the first circuit board, and a second end of the third connector protrudes from the second mounting hole;

the base is provided with a groove, and the display screen is inserted into the groove; the depth direction of the groove is the same as the height direction of the base, and a third mounting hole communicated with the accommodating cavity is formed in the bottom wall of the groove;

the power supply module comprises a power supply and a second circuit board, a fourth connector is arranged on the base and is used for being connected with the third connector in a matched mode, the second circuit board is connected with the power supply, a power supply end is arranged on the second circuit board, a second end of the fourth connector is connected with the power supply end, and a first end of the fourth connector extends out of the third mounting hole.

4. The electronic sign according to claim 3, wherein the third connector is in interference connection with the second mounting hole.

5. The electronic sign according to claim 3, wherein said base comprises an outer shell and an inner liner disposed in said outer shell;

the inner liner and the outer shell enclose the accommodating cavity, the groove is formed in the inner liner, an opening is formed in the outer shell corresponding to the groove, and the groove is exposed out of the opening.

6. The electronic signboard of claim 3 wherein the width of the groove is greater than the thickness of the display screen;

the side wall of the groove is provided with a plurality of first raised lines protruding out of the side wall of the groove, each first raised line is provided with a first face and a second face which are opposite to each other, the first faces are fixed on the side wall of the groove, and the distance between the first faces and the second faces is gradually increased along the direction close to the bottom wall of the groove.

7. The electronic signboard of claim 6 wherein the first ribs are disposed on two opposite sidewalls of the groove, and the first ribs are aligned one-to-one on the two sidewalls, and a distance between bottom ends of the two aligned first ribs is smaller than a thickness of the display screen.

8. The electronic signboard of claim 3 further comprising at least one positioning assembly comprising matching positioning holes and positioning posts, one of the positioning holes and the positioning posts being disposed on the bottom wall of the groove and the other one of the positioning holes and the positioning posts being disposed on the frame.

9. The electronic signboard of claim 8 wherein the sidewall of the positioning hole is provided with a second rib, the second rib having a first surface and a second surface opposite to each other, the first surface being fixed to the sidewall of the positioning hole, and a distance between the first surface and the second surface gradually increasing toward a bottom of the positioning hole.

10. The electronic sign according to claim 1, further comprising an update module and a communication module, the update module configured to: responding to the updating operation of a user, and sending an enabling signal to the communication module; the communication module is configured to: responding to the enabling signal, searching an updating instruction, and sending the updating instruction to a driving module when the updating instruction is searched, so that the driving module can control the first display panel and the second display panel to update the picture according to the updating instruction.

11. The electronic sign according to claim 3, wherein the second circuit board further has an indicating structure disposed thereon, the indicating structure configured to: when the power supply module is conducted with the driving module, an indication signal is output.

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