An electronic price tag

Abstract

The utility model belongs to the technical field of electronic product, disclose a kind of electronic price tag, the electronic price tag includes display screen, lens and back shell, wherein, lens has display surface, mounting surface and side, display surface is used to show the information on display screen, display surface is oppositely arranged with mounting surface, side connects display surface and mounting surface, and the junction of side and mounting surface forms edge connecting part. Lens is installed in the open end of back shell, and the open end of back shell is sequentially provided with welding surface and glue dispensing surface along X direction, and in Y direction, glue dispensing surface is located in the inside of welding surface, and welding surface and edge connecting part are welded, and glue dispensing surface and the mounting surface between it are provided with sealant. By the above-mentioned setting, not only the production efficiency of electronic price tag can be improved, and compared with single glue body fixed structure, the double fixed structure of welding and glue body can greatly improve the structural strength and waterproof performance of electronic price tag.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, and in particular to an electronic price tag. Background Technology

[0002] Electronic shelf labels (ESCs) are electronic tags used to display prices and promotional information, typically placed on shelves to replace traditional paper price tags. ESCs usually use electronic paper displays and can be updated via signals such as Wi-Fi, BLE, or RF to display the latest price information. They are widely used in retail stores, supermarkets, and shopping malls, improving sales and management efficiency.

[0003] Because electronic shelf labels are typically used in high-traffic environments with high levels of dust and moisture, their production requires consideration of waterproofing, dustproofing, and impact resistance. Current technology typically uses adhesive bonding to secure the lens and back cover of electronic shelf labels, ensuring structural strength and waterproof / dustproof performance. However, adhesive bonding requires sustained pressure application until the adhesive cures, typically for 30-60 minutes, leading to low production efficiency. Furthermore, while adhesive bonding provides a degree of waterproofing, it still falls short of meeting waterproofing requirements in cold chain, chemical, and medical applications.

[0004] Therefore, this utility model proposes an electronic price tag with high structural strength and strong waterproof performance to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an electronic price tag that has high production efficiency, high structural strength, and strong waterproof performance.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An electronic shelf label, the electronic shelf label including a display screen, and further including:

[0008] The lens has a display surface, a mounting surface, and a side surface. The display surface is used to display information on the display screen. The display surface is disposed opposite to the mounting surface. The side surface connects the display surface and the mounting surface. An edge connection portion is formed at the junction of the side surface and the mounting surface.

[0009] The rear shell has a lens mounted on its open end. The open end of the rear shell has a welding surface and an adhesive dispensing surface arranged sequentially along the X direction. In the Y direction, the adhesive dispensing surface is located inside the welding surface. The welding surface is welded to the edge connection portion. A sealant is provided between the adhesive dispensing surface and the mounting surface. The X direction is the direction from the outside to the inside of the open end of the rear shell, and the Y direction is perpendicular to the X direction.

[0010] Optionally, the opening end of the rear shell is further provided with a limiting surface, which is disposed between the welding surface and the dispensing surface. The welding surface is an inclined surface, at least a portion of the edge connecting portion abuts against the welding surface, and at least a portion of the mounting surface abuts against the limiting surface. A space for dispensing the sealant can be formed between the mounting surface and the dispensing surface.

[0011] Optionally, the limiting surface is connected to the welding surface, and along the X direction, the limiting surface is parallel to the dispensing surface, and the limiting surface and the dispensing surface are connected by a cross section.

[0012] Optionally, the height of the cross-section projected in the X direction is 0.1 mm to 0.3 mm.

[0013] Optionally, the sealant is higher than the limiting surface along the X direction, and / or the sum of the widths of the welding surface and the limiting surface projected in the Y direction is less than the width of the dispensing surface projected in the Y direction.

[0014] Optionally, the width of the dispensing surface along the Y direction is 0.6 mm to 1 mm.

[0015] Optionally, the sealant is a PUR hot melt adhesive.

[0016] Optionally, the rear cover is further provided with a receiving groove for placing the battery, circuit board and display screen. The inner wall of the receiving groove is provided with multiple snap-fit ​​structures for fixing the battery.

[0017] Optionally, the electronic price tag also includes a protective sleeve, which is fitted over the outside of the display screen to protect the display screen. The protective sleeve is a structural component made of an elastic material.

[0018] Optionally, an identification platform is also provided on the outer side wall of the rear shell, and the identification platform is used to place identification strips.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides an electronic shelf label that simultaneously welds and applies adhesive to fix the lens and back cover, saving time waiting for the adhesive to cure and thus improving production efficiency. Furthermore, after welding, the lens and back cover maintain continuous pressure on the adhesive, eliminating the need for external clamps and reducing production costs. In addition, compared to existing single-adhesive fixing structures, the dual-fixing structure of welding and adhesive significantly improves the structural strength and waterproof performance of the electronic shelf label, enabling it to meet the needs of more application scenarios. Attached Figure Description

[0021] Figure 1 This is an exploded view of the electronic price tag portion structure provided in this embodiment of the utility model;

[0022] Figure 2 This is a side view of the electronic price tag before the lens is attached to the back cover, as provided in this embodiment of the utility model.

[0023] Figure 3 yes Figure 2 Cross-sectional view of section AA after the protective cover has been removed;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0025] Figure 5 This is a side view of the electronic price tag after the lens and back cover are combined, as provided in this embodiment of the utility model.

[0026] Figure 6 yes Figure 5 Cross-sectional view of the CC section after the protective cover has been removed;

[0027] Figure 7 yes Figure 6 A magnified view of a section at point D;

[0028] Figure 8 This is a side view of the rear shell provided in an embodiment of the present utility model;

[0029] Figure 9 yes Figure 8 Cross-sectional view of EE after the protective cover has been removed;

[0030] Figure 10 yes Figure 9 A magnified view of a section at point F.

[0031] In the picture:

[0032] 1. Lens; 11. Display surface; 12. Mounting surface; 13. Side; 14. Edge connection part;

[0033] 2. Back cover; 21. Welding surface; 22. Adhesive application surface; 23. Limiting surface; 24. Cross-section; 25. Receiving groove; 251. Snap-fit ​​structure; 26. Identification platform;

[0034] 3. Sealant; 4. Protective sleeve; 41. Display window; 5. Identification strip. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figures 1 to 10As shown, this embodiment provides an electronic shelf label, which includes a display screen, a lens 1, and a back cover 2. The lens 1 has a display surface 11, a mounting surface 12, and a side surface 13. The display surface 11 displays information on the display screen and is positioned opposite to the mounting surface 12. The side surface 13 connects the display surface 11 and the mounting surface 12, and an edge connection portion 14 is formed at the junction of the side surface 13 and the mounting surface 12. The lens 1 is mounted on the open end of the back cover 2. Along the X direction, the open end of the back cover 2 has a welding surface 21 and an adhesive dispensing surface 22, with the adhesive dispensing surface 22 located inside the welding surface 21 in the Y direction. The welding surface 21 is welded to the edge connection portion 14, and sealant 3 is applied between the adhesive dispensing surface 22 and the mounting surface 12. The X direction is the direction from the outside to the inside of the open end of the back cover 2, and the Y direction is perpendicular to the X direction.

[0040] By simultaneously welding and applying adhesive to fix the lens 1 and the back shell 2, the production efficiency of electronic shelf labels can be improved due to the shorter welding time. Furthermore, after welding, the lens 1 and back shell 2 can maintain continuous pressure on the adhesive, eliminating the need for external clamps and reducing production costs. In addition, compared to the single adhesive fixing structure in existing technologies, the electronic shelf label in this embodiment can be used immediately after welding without waiting for the adhesive to cure, further shortening the production time and reducing costs. Simultaneously, the dual fixing structure of welding and adhesive significantly improves the structural strength and waterproof performance of the electronic shelf label, enabling it to meet the needs of more application scenarios.

[0041] Optionally, in this embodiment, the welding surface 21 and the edge connection portion 14 are connected by ultrasonic welding. The time required for ultrasonic welding is usually less than 1 second, which can greatly improve the production efficiency of electronic price tags. It is understood that in some other embodiments, the welding surface 21 and the edge connection portion 14 may also be welded by other methods, which are not limited here.

[0042] Optionally, such as Figure 1 and Figure 4 As shown, in this embodiment, the rear shell 2 is generally a rectangular shell structure with one open end. The lens 1 is a plate-like structure whose shape is adapted to the open end of the rear shell 2 and whose size is slightly smaller than the open end of the rear shell 2. Therefore, when the lens 1 is placed on the rear shell 2, the edge connecting part 14 on the lens 1 can abut against the welding surface 21, and there are gaps between the four sides 13 of the lens 1 and the inner sidewall of the open end of the rear shell 2, which facilitates ultrasonic welding between the edge connecting part 14 and the welding surface 21. At the same time, there are also gaps between the mounting surface 12 and the adhesive dispensing surface 22 of the lens 1, which allows glue to be placed between the mounting surface 12 and the adhesive dispensing surface 22.

[0043] It is understood that in some other embodiments, the rear shell 2 may also adopt other shell structures of different shapes, such as square, elliptical, etc., according to actual needs, and there is no limitation here. The lens 1 only needs to be adapted to the opening end of the rear shell 2, and there is no limitation here. It is also understood that the display surface 11 of the lens 1 is not limited to a plane, and can be set to other shapes of surfaces according to visual needs. For example, when the display surface 11 is convex, it can form a magnifying glass-like effect, thereby magnifying the information on the display screen and making it easier to see.

[0044] It should be noted that lens 1 is a structural component made of transparent material, thus protecting the display screen while allowing the information on the display screen to be seen through lens 1. Optionally, lens 1 is a structural component made of transparent glass.

[0045] In some embodiments, the opening end of the rear shell 2 is further provided with a limiting surface 23, which is disposed between the welding surface 21 and the dispensing surface 22. The welding surface 21 is an inclined surface, at least a portion of the edge connecting portion 14 abuts against the welding surface 21, and at least a portion of the mounting surface 12 abuts against the limiting surface 23. A space for dispensing sealant 3 can be formed between the mounting surface 12 and the dispensing surface 22. Specifically, as shown in... Figure 4 As shown, the welding surface 21, the limiting surface 23, and the adhesive dispensing surface 22 are arranged sequentially along the X direction, and the welding surface 21, the limiting surface 23, and the adhesive dispensing surface 22 are also arranged sequentially along the Y direction. In the X direction, the welding surface 21 is an inclined plane formed by the upper end connecting to the vertical wall of the opening end of the rear shell 2 and the lower end gradually shifting towards the Y direction. This inclined plane faces the edge connection part 14 of the lens 1.

[0046] By setting the limiting surface 23, the ultrasonic precision between the edge connection part 14 and the welding surface 21 can be guaranteed. This avoids situations where the gap between the mounting surface 12 and the adhesive surface 22 is too small when the welding is too deep, resulting in an excessively thin sealant 3 and low structural strength; or where the gap between the mounting surface 12 and the adhesive surface 22 is too large when the welding is too shallow, resulting in ineffective adhesion of the sealant 3. By setting the welding surface 21 as an inclined surface, it is easier for the edge connection part 14 to abut against the welding surface 21, ensuring welding quality.

[0047] It should be noted that the dispensing surface 22 and the limiting surface 23 can be set as either horizontal or inclined surfaces. The structure of the edge connecting part 14 and the mounting surface 12 can be adaptively adjusted according to the cross-sectional shape formed by the welding surface 21, the dispensing surface 22 and the limiting surface 23, so that the edge connecting part 14 can be welded to the welding surface 21, the mounting surface 12 can abut against the limiting surface 23, and the sealant 3 can be provided between the mounting surface 12 and the dispensing surface 22.

[0048] Furthermore, such as Figure 1 , Figure 4 and Figure 10 As shown, in this embodiment, the limiting surface 23 is connected to the welding surface 21. Along the X direction, the limiting surface 23 is parallel to the dispensing surface 22, and the limiting surface 23 and the dispensing surface 22 are connected by the cross section 24. By setting the limiting surface 23 to a horizontal plane, it is easier to limit the mounting surface 12. Similarly, by setting the dispensing surface 22 to a horizontal plane, it is easier to apply sealant 3 to the mounting surface 12 and the dispensing surface 22. Furthermore, since both the limiting surface 23 and the dispensing surface 22 are horizontal planes, the mounting surface 12 can be designed as a plane, which facilitates the production and processing of the lens 1.

[0049] Optionally, the height of the projection of section 24 in the X direction is 0.1mm to 0.3mm. This setting ensures that the thickness of the sealant 3 between the mounting surface 12 and the adhesive surface 22 is 0.1mm to 0.3mm. This thickness of sealant 3 not only effectively bonds the mounting surface 12 to the adhesive surface 22, but also provides good structural strength and waterproofing at the bonded joint. It is understood that the height of the projection of section 24 in the X direction can be 0.1mm, 0.2mm, or 0.3mm. It is also understood that the height of the projection of section 24 in the X direction can be other values ​​within the range of 0.1mm to 0.3mm. Preferably, the height of the projection of section 24 in the X direction is 0.2mm.

[0050] Optionally, the sealant 3 is higher than the limiting surface 23 in the X direction, and the sum of the widths of the projections of the welding surface 21 and the limiting surface 23 in the Y direction is less than the width of the projection of the dispensing surface 22 in the Y direction. By setting the sealant 3 higher than the limiting surface 23, it can be ensured that after the lens 1 abuts against the limiting surface 23, the sealant 3 can stably contact the lens 1, thereby firmly bonding the lens 1. By setting the sum of the widths of the projections of the welding surface 21 and the limiting surface 23 in the Y direction to be less than the width of the projection of the dispensing surface 22 in the Y direction, the accuracy of the dispensing process can be guaranteed even when the overall size of the back shell 2 is limited and welding is required. It is understood that in some other embodiments, it is also possible to only satisfy that the sealant 3 is higher than the limiting surface 23 in the X direction or that the sum of the widths of the projections of the welding surface 21 and the limiting surface 23 in the Y direction is less than the width of the projection of the dispensing surface 22 in the Y direction, and this is not a limitation.

[0051] Optionally, the width of the adhesive dispensing surface 22 along the Y direction is 0.6mm to 1mm. This setting ensures that the width of the sealant 3 between the mounting surface 12 and the adhesive dispensing surface 22 along the Y direction is 0.6mm to 1mm. This width of sealant 3 not only ensures the stability of the bond between the mounting surface 12 and the adhesive dispensing surface 22, but also provides good structural strength and waterproofing at the bonded joint. It is understood that the width of the adhesive dispensing surface 22 along the Y direction can be 0.6mm, 0.7mm, 0.8mm, 0.9mm, and 1mm. It is also understood that the width of the adhesive dispensing surface 22 along the Y direction can be other values ​​within the range of 0.6mm to 1mm. Preferably, the width of the adhesive dispensing surface 22 along the Y direction is 0.8mm.

[0052] Furthermore, the sealant 3 between the mounting surface 12 and the adhesive surface 22 is PUR hot melt adhesive. After solidification, PUR hot melt adhesive has good adhesion and water resistance, which can effectively connect and seal the mounting surface 12 and the adhesive surface 22. At the same time, after solidification, PUR hot melt adhesive is an elastic solid, which can act as a buffer when the electronic price tag is subjected to external impact, preventing the weld or adhesive structure between the lens 1 and the back shell 2 from breaking or separating.

[0053] like Figure 1 , Figure 4 and Figure 7 As shown, the welding and adhesive bonding process between the lens 1 and the back shell 2 in this embodiment is as follows:

[0054] First, apply glue to the dispensing surface 22. Then, place the lens 1 on the back shell 2. At this point, the edge connecting part 14 of the lens 1 abuts against the welding surface 21, and there is a gap between the side surface 13 of the lens 1 and the inner wall of the back shell 2. There is also a gap between the mounting surface 12 of the lens 1 and the limiting surface 23. Subsequently, ultrasonic welding is performed between the edge connecting part 14 and the welding surface 21 using ultrasonic equipment. After welding, the mounting surface 12 of the lens 1 is supported on the limiting surface 23. Simultaneously, the welding of the lens 1 and the back shell 2 provides continuous pressure maintenance for the glue between the mounting surface 12 and the dispensing surface 22, eliminating the need for external clamps. In other words, the lens 1 can be used immediately after ultrasonic welding of the back shell 2, and during use, simply wait for the glue to cure.

[0055] It should be noted that the ultrasound equipment and its usage methods mentioned above are existing technologies and will not be repeated here.

[0056] like Figure 1As shown, the rear shell 2 also has a receiving groove 25, which is used to house the battery, circuit board, and display screen. The display screen is used to display the price of the items, the circuit board is used to control the display screen, and the battery powers the display screen and circuit board. By placing the battery, circuit board, and display screen in the receiving groove 25, the ultrasonic welding of the lens 1 to the rear shell 2 can be avoided.

[0057] It should be noted that the batteries, circuit boards and displays mentioned above are all existing technologies, and will not be described again here.

[0058] Furthermore, such as Figure 1 As shown, the inner wall of the receiving groove 25 is provided with multiple snap-fit ​​structures 251, which are used to fix the battery. By setting the snap-fit ​​structures 251 to position and fix the battery, it is easier to assemble the electronic price tag.

[0059] Optionally, in this embodiment, the snap-fit ​​structure 251 is a snap-fit ​​tab. Multiple snap-fit ​​tabs are spaced apart circumferentially on the inner wall of the receiving groove 25, and the battery is positioned in the middle of the snap-fit ​​tabs, allowing the edge of the battery to snap into place with each snap-fit ​​tab. This not only facilitates installation and removal but also ensures stable installation of the battery within the rear casing 2. It is understood that in some other embodiments, other types of snap-fit ​​structures 251 may be used, such as snap protrusions, and this is not a limitation.

[0060] like Figure 1 As shown, the electronic price tag also includes a protective sleeve 4, which is fitted over the display screen to protect it. By fitting the protective sleeve 4 over the display screen, all surfaces of the display screen can be protected. Furthermore, a display window 41 is provided on the protective sleeve 4 at a position opposite to the display opening of the display screen, thus protecting the display screen without affecting its display.

[0061] Furthermore, since the display screen is easily damaged when impacted by external forces, resulting in display problems, the protective sleeve 4 is designed as a structural component made of elastic material. With this design, when the display screen is subjected to external forces from any direction, the protective sleeve 4 can deform to provide a buffering effect, thereby preventing damage to the display screen.

[0062] Optionally, the protective sleeve 4 in this application is a structural component made of rubber. It is understood that in some other embodiments, the protective sleeve 4 may also be made of other elastic materials, and this is not a limitation.

[0063] like Figure 1As shown, an identification platform 26 is also provided on the outer wall of the rear shell 2, on which the identification strip 5 is placed. The identification strip 5 can be used to affix a barcode, binding the electronic price tag to the product and ensuring that the information on the electronic price tag matches the product information. Of course, it is understandable that other information can also be affixed to the identification strip 5 according to actual needs.

[0064] Optionally, in this embodiment, the label strip 5 is a sticker, which can be directly pasted onto the label stand 26. Stickers are low in cost and easy to apply. It is understood that in some other embodiments, the label strip 5 can be a metal sheet, with a magnet inside the label stand 26, allowing the label strip 5 to adhere to the label stand 26. This method is more convenient when replacing the label strip 5.

[0065] The electronic shelf label provided in this embodiment, by simultaneously performing ultrasonic welding and adhesive fixation between the lens 1 and the back shell 2, can save the time waiting for the adhesive to cure, thereby improving the production efficiency of the electronic shelf label. Furthermore, after ultrasonic welding, the lens 1 and the back shell 2 can continuously maintain pressure on the adhesive, eliminating the need for external clamps and reducing production costs. In addition, compared to the single adhesive fixation structure in existing technologies, the dual fixation structure of welding and adhesive can greatly improve the structural strength and waterproof performance of the electronic shelf label, enabling it to meet the usage needs of more scenarios.

[0066] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electronic shelf label, the electronic shelf label comprising a display screen, characterized in that, Also includes: Lens (1), the lens (1) has a display surface (11), a mounting surface (12) and a side surface (13), the display surface (11) is used to display information on the display screen, the display surface (11) is disposed opposite to the mounting surface (12), the side surface (13) connects the display surface (11) and the mounting surface (12), and an edge connection portion (14) is formed at the junction of the side surface (13) and the mounting surface (12); The rear shell (2) has the lens (1) mounted on its open end. The open end of the rear shell (2) is provided with a welding surface (21) and an adhesive surface (22) in sequence along the X direction. The adhesive surface (22) is located inside the welding surface (21) in the Y direction. The welding surface (21) is welded to the edge connection part (14). The adhesive surface (22) is provided with sealant (3) between it and the mounting surface (12). The X direction is the direction from the outside to the inside of the open end of the rear shell (2), and the Y direction is perpendicular to the X direction.

2. The electronic price tag according to claim 1, characterized in that, The opening end of the rear shell (2) is also provided with a limiting surface (23). The limiting surface (23) is located between the welding surface (21) and the dispensing surface (22). The welding surface (21) is an inclined surface. At least a portion of the edge connecting portion (14) abuts against the welding surface (21), and at least a portion of the mounting surface (12) abuts against the limiting surface (23). A space for dispensing the sealant (3) can be formed between the mounting surface (12) and the dispensing surface (22).

3. The electronic price tag according to claim 2, characterized in that, The limiting surface (23) is connected to the welding surface (21). Along the X direction, the limiting surface (23) is parallel to the dispensing surface (22), and the limiting surface (23) and the dispensing surface (22) are connected by a cross section (24).

4. The electronic price tag according to claim 3, characterized in that, The height of the cross section (24) projected in the X direction is 0.1 mm to 0.3 mm.

5. The electronic price tag according to claim 3, characterized in that, The sealant (3) is higher than the limiting surface (23) along the X direction, and / or the sum of the widths of the welding surface (21) and the limiting surface (23) projected in the Y direction is less than the width of the dispensing surface (22) projected in the Y direction.

6. The electronic price tag according to claim 1, characterized in that, The width of the dispensing surface (22) along the Y direction is 0.6 mm to 1 mm.

7. The electronic price tag according to claim 1, characterized in that, The sealant (3) is a PUR hot melt adhesive.

8. The electronic price tag according to claim 1, characterized in that, The rear shell (2) is also provided with a receiving groove (25), which is used to place the battery, circuit board and display screen. Multiple snap-fit ​​structures (251) are provided on the inner wall of the receiving groove (25), which are used to fix the battery.

9. The electronic price tag according to claim 1, characterized in that, The electronic price tag also includes a protective sleeve (4), which is fitted over the outside of the display screen. The protective sleeve (4) is used to protect the display screen and is a structural component made of elastic material.

10. The electronic price tag according to claim 1, characterized in that, An identification platform (26) is also provided on the outer side wall of the rear shell (2), and the identification platform (26) is used to place the identification strip (5).

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