A freely expandable modular electronic ink screen tag
By using modular design and shared battery chips, the high cost of e-ink labels was solved, achieving both cost reduction and structural enhancement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI RENWEI ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
AI Technical Summary
Existing e-ink screen labels have high production costs because they each have their own internal battery and processing chip.
It adopts a modular design, connecting multiple e-ink screen tags through a backplane and processing module. It uses flexible contacts and copper strips for power and signal transmission, sharing a single battery and microcontroller, eliminating the need for an independent battery and chip for each tag.
The production cost of each e-ink screen label was reduced, and the structural strength was improved by using a stainless steel backing plate, which reduced the label weight. Silicone buttons were used to improve durability.
Smart Images

Figure CN224383862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic ink screen label technology, specifically a modular electronic ink screen label that can be freely expanded. Background Technology
[0002] E-ink labels are tags that use electronic ink technology, primarily for displaying and conveying information. E-ink is a revolutionary new method and technology for information display; it can change color when powered on and display changing images like a traditional screen, providing a paper-like visual effect and reading experience.
[0003] Existing e-ink display labels are all individual units, each with its own internal battery and processing chip, which results in high manufacturing costs. Therefore, there is a need for an e-ink display label that reduces its internal components and lowers its production costs. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a modular electronic ink screen label that can be freely expanded, thus solving the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a freely expandable modular electronic ink screen label, including a back plate, a processing module provided on the front surface of the back plate, a plurality of electronic ink screen labels provided on the left side of the processing module on the front surface of the back plate, each electronic ink screen label including a label shell, an electronic ink screen fixed inside the label shell, a label circuit board fixed inside the label shell, the electronic ink screen and the label circuit board being fixedly connected, and four label elastic contacts fixed on the right side of the label circuit board;
[0006] The back panel has four copper strips inside. The processing module includes a processing shell, and a processing circuit board is fixed inside the processing shell. A battery is fixed on the rear surface of the processing circuit board. A microcontroller is fixed on the left side of the rear surface of the processing circuit board. Four processing elastic contacts are fixed on the right side of the processing circuit board. The right ends of the processing elastic contacts and the right ends of the label elastic contacts pass through the processing shell and the label shell, respectively. Multiple buttons are provided inside the label shell.
[0007] Preferably, the back plate is made of stainless steel.
[0008] Preferably, four insulating plastic frames are fixed inside the back plate, and the copper strip is fixed inside the insulating plastic frames.
[0009] Preferably, the front surface of the back plate has grooves on both the upper and lower surfaces, and a fixed magnetic strip is fixed inside the groove. The rear surface of the label shell and the rear surface of the processing shell are both fixed with two movable magnetic strips.
[0010] Preferably, both the label shell and the processing shell are made of plastic.
[0011] Preferably, the button is a silicone button.
[0012] Beneficial effects
[0013] This invention provides a modular, freely expandable e-ink screen label. Compared with existing technologies, it has the following advantages:
[0014] 1. This freely expandable modular e-ink display label, consisting of an e-ink label, a backplate, copper strips, and a processing module, is designed to be mounted on a shelf. The processing module is attached to the backplate via a magnetic strip, and then the e-ink label is attached to the backplate via the same magnetic strip. Two upper elastic contacts and a copper strip supply power to the e-ink label, while two lower elastic contacts and a copper strip transmit signals. The item and price on the e-ink label are set via buttons. This allows multiple e-ink labels to be controlled by a single battery and microcontroller, eliminating the need for each label to have its own battery and microcontroller, thus reducing costs.
[0015] 2. This freely expandable modular e-ink screen label, by setting the back plate to stainless steel, can improve the strength of the back plate and prevent the back plate from bending, thereby causing the copper strip to deform. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the electronic ink screen label of this utility model;
[0018] Figure 3 This is a side-view cross-sectional structural diagram of the processing module in this utility model;
[0019] Figure 4 This is a schematic diagram of the back plate structure in this utility model.
[0020] In the diagram: 1. E-ink label; 101. Label circuit board; 102. Label spring contact; 103. E-ink display; 104. Label shell; 105. Button; 2. Processing module; 201. Battery; 202. Processing spring contact; 203. Microcontroller; 204. Processing circuit board; 205. Processing shell; 3. Backplate; 4. Copper strip; 5. Fixed magnetic strip; 6. Groove; 7. Moving magnetic strip; 8. Insulating plastic frame. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-4 This utility model provides a technical solution: a freely expandable modular e-ink screen label, including a back plate 3, a processing module 2 on the front surface of the back plate 3, and multiple e-ink screen labels 1 on the left side of the processing module 2 on the front surface of the back plate 3. Each e-ink screen label 1 includes a label shell 104, an e-ink screen 103 fixed inside the label shell 104, and a label circuit board 101 fixed inside the label shell 104. The e-ink screen 103 and the label circuit board 101 are fixedly connected. Four label elastic contacts 102 are fixed to the right side of the label circuit board 101. Four copper strips 4 are provided inside the back plate 3. The processing module 2 includes a processing shell 205. A processing circuit board 204 is fixed inside the housing 205. A storage battery 201 is fixed on the rear surface of the processing circuit board 204. A microcontroller 203 is fixed on the left side of the rear surface of the processing circuit board 204. Four processing elastic contacts 202 are fixed on the right side of the processing circuit board 204. The right ends of the processing elastic contacts 202 and the right ends of the label elastic contacts 102 pass through the processing housing 205 and the label housing 104, respectively. Multiple buttons 105 are provided inside the label housing 104. In this way, multiple e-ink screen labels 1 can be controlled by one storage battery 201 and microcontroller 203, eliminating the need for a storage battery 201 and microcontroller 203 inside each e-ink screen label 1, thus reducing costs.
[0023] Furthermore, the back plate 3 is made of stainless steel, which enhances its strength.
[0024] Furthermore, four insulating plastic frames 8 are fixed inside the back plate 3, and copper strips 4 are fixed inside the insulating plastic frames 8, which can insulate the copper strips 4.
[0025] Furthermore, grooves 6 are provided on both the upper and lower surfaces of the front surface of the back plate 3, and a fixing magnetic strip 5 is fixed inside the groove 6. Two movable magnetic strips 7 are fixed on the rear surface of the label shell 104 and the rear surface of the processing shell 205, which facilitates the installation of the electronic ink screen label 1 and the processing module 2.
[0026] Furthermore, both the label housing 104 and the processing housing 205 are made of plastic, which reduces the weight of the e-ink screen label 1 and the processing module 2.
[0027] Furthermore, button 105 is made of silicone, making it durable and less prone to damage.
[0028] During operation, the backplate 3 is fixed to the shelf, and the processing module 2 is attracted to the backplate 3 by the moving magnetic strip 7. Then, the e-ink screen label 1 is attracted to the backplate 3 by the moving magnetic strip 7, and the elastic contacts and copper strip 4 are in contact. The two upper elastic contacts and copper strip 4 transmit power to the e-ink screen label 1, and the two lower elastic contacts and copper strip 4 transmit signals. The items and prices of the e-ink screen labels 1 are set by the button 105. In this way, multiple e-ink screen labels 1 can be controlled by one battery 201 and microcontroller 203, without the need for each e-ink screen label 1 to have its own battery 201 and microcontroller 203, thus reducing costs.
[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A freely scalable, modular electronic ink screen tag comprising a backplate (3), characterized in that: The front surface of the back plate (3) is provided with a processing module (2). The front surface of the back plate (3) is provided with a plurality of electronic ink screen labels (1) on the left side of the processing module (2). The electronic ink screen label (1) includes a label shell (104). An electronic ink screen (103) is fixed inside the label shell (104). A label circuit board (101) is fixed inside the label shell (104). The electronic ink screen (103) and the label circuit board (101) are fixedly connected. Four label elastic contacts (102) are fixed on the right side of the label circuit board (101). The back plate (3) has four copper strips (4) inside. The processing module (2) includes a processing shell (205). A processing circuit board (204) is fixed inside the processing shell (205). A battery (201) is fixed on the rear surface of the processing circuit board (204). A microcontroller (203) is fixed on the left side of the rear surface of the processing circuit board (204). Four processing elastic contacts (202) are fixed on the right side of the processing circuit board (204). The right end of the processing elastic contact (202) and the right end of the label elastic contact (102) pass through the processing shell (205) and the label shell (104) respectively. Multiple buttons (105) are provided inside the label shell (104).
2. A freely expandable modular electronic ink screen tag according to claim 1, characterized in that: The back plate (3) is made of stainless steel.
3. The freely expandable modular electronic ink screen label according to claim 2, characterized in that: The back plate (3) has four insulating plastic frames (8) fixed inside, and the copper strip (4) is fixed inside the insulating plastic frames (8).
4. The freely expandable modular electronic ink screen label according to claim 3, characterized in that: The front surface of the back plate (3) is provided with grooves (6) on both the upper and lower sides. A fixed magnetic strip (5) is fixed inside the groove (6). Two movable magnetic strips (7) are fixed on the rear surface of the label shell (104) and the rear surface of the processing shell (205).
5. A freely expandable modular electronic ink screen label according to claim 4, characterized in that: Both the label shell (104) and the processing shell (205) are made of plastic.
6. A freely expandable modular electronic ink screen label according to claim 5, characterized in that: The button (105) is a silicone button.