Electronic paper system

Abstract

The utility model discloses an electronic paper system, which comprises at least one dot-matrix electronic paper, at least one segment code electronic paper and an external circuit, the dot-matrix electronic paper comprises a first electrode and a driving module, and the driving module is used for outputting voltage to the first electrode through a driving output end of the driving module so as to drive the dot-matrix electronic paper to display; the segment code type electronic paper comprises at least one second electrode, and the driving module of any dot-matrix type electronic paper serves as a combined driving module; the external circuit comprises a gating module, the gating module comprises an input end and at least one output end, the at least one output end comprises at least one first output end, and the first output end corresponds to the second electrode; the input end of the gating module is connected with the driving output end of the combined driving module, the first output end of the gating module is connected with the corresponding second electrode, and the gating module is used for communicating the input end of the gating module with one first output end in a time-sharing manner, so that richer colors and information presentation are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic paper technical field especially relates to an electronic paper system. BACKGROUND

[0002] Electronic paper is a kind of device that displays by electrophoretic display technology, by the control circuit on the array layer of electronic paper to each pixel point voltage is applied, to drive the color electrophoretic particle movement in electronic paper, to realize image display.Electronic paper as a kind of reflective display device, after image update, it does not need to refresh continuously and can keep for a long time, so the power consumption is very low.Because of having low power consumption, wide viewing angle, high contrast, eye protection and many other characteristics, electronic paper is increasingly widely used in electronic price tag, electronic book, billboard and many other fields.

[0003] Electronic paper can be divided into dot matrix (Dot Matrix) and segment code (Segment) according to the different driving modes.Dot matrix electronic paper usually has high resolution and uses active drive, and segment code electronic paper usually has low resolution and uses passive drive.For the electronic paper system composed of dot matrix electronic paper and segment code electronic paper, it cannot display more rich colors, and information presentation is relatively single. SUMMARY

[0004] The utility model provides a kind of electronic paper system, so that the electronic paper system of dot matrix electronic paper and segment code electronic paper composition can realize more rich color and information presentation on the basis of sharing a drive module and reducing cost.

[0005] According to an aspect of the utility model, an electronic paper system is provided, comprising: at least one dot matrix electronic paper, at least one segment code electronic paper and an external circuit;

[0006] The dot matrix electronic paper includes a first electrode and a drive module, and the drive module is configured to output a voltage to the first electrode through a drive output end of the drive module to drive the dot matrix electronic paper to display;

[0007] The segment code electronic paper includes at least one second electrode, and the drive module of any dot matrix electronic paper is used as a joint drive module.

[0008] The external circuit comprises a gating module, the gating module comprises an input end and at least one output end, the at least one output end comprises at least one first output end, the first output end of the gating module corresponds to the second electrode; the input end of the gating module is connected with the driving output end of the joint driving module, the first output end of the gating module is connected with the corresponding second electrode, and the gating module is used for time-divisionally connecting the input end and the at least one first output end of the gating module, so that the voltage output by the driving output end of the joint driving module is output to the corresponding second electrode, and the segment code type electronic paper to which the second electrode belongs is driven.

[0009] The electronic paper system provided by the embodiment of the utility model includes at least one dot matrix type electronic paper, at least one segment code type electronic paper and an external circuit, each dot matrix type electronic paper includes a driving module, and the driving module of any one dot matrix type electronic paper is taken as a joint driving module, namely, voltage is transmitted to the first electrode of the dot matrix type electronic paper to which the joint driving module belongs, and voltage is transmitted to the second electrode of each segment code type electronic paper, so that one driving module is shared by the dot matrix type electronic paper and the segment code type electronic paper, the circuit structure is simplified, and the cost is reduced. Meanwhile, the electronic paper system further includes an external circuit, the external circuit includes a gating module, voltage output by the driving output end of the joint driving module is transmitted to the second electrode of each segment code type electronic paper by using the gating module to control time-division, and different voltage can be output by the driving output end at different time, so that each segment code type electronic paper can display different colors or present different information. On the basis of sharing the driving module of any one dot matrix type electronic paper by the segment code type electronic paper and reducing the system cost, the electronic paper system provided by the utility model can realize more abundant colors and information presentation.

[0010] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the utility model, and is not used to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creating labor on the premise of the drawings.

[0012] Figure 1 A plan view of the electronic paper system provided by the embodiment of the utility model is shown in the figure;

[0013] Figure 2A cross section structure schematic view of the dot matrix electronic paper is provided for the embodiment of the utility model;

[0014] Figure 3 A plan view of the dot matrix electronic paper is provided for the embodiment of the utility model;

[0015] Figure 4 Another cross section structure schematic view of the dot matrix electronic paper is provided for the embodiment of the utility model;

[0016] Figure 5 A plan view of the segment code electronic paper is provided for the embodiment of the utility model;

[0017] Figure 6 A cross section structure schematic view of the electronic paper system is provided for the embodiment of the utility model;

[0018] Figure 7 A circuit principle diagram of the joint driving module driving the first electrode and the second electrode is provided for the embodiment of the utility model;

[0019] Figure 8 Another plan view of the electronic paper system is provided for the embodiment of the utility model;

[0020] Figure 9 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode is provided for the embodiment of the utility model;

[0021] Figure 10 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode is provided for the embodiment of the utility model;

[0022] Figure 11 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode is provided for the embodiment of the utility model;

[0023] Figure 12 A driving simplified intention of the electronic paper system is provided for the embodiment of the utility model;

[0024] Figure 13 Another plan view of the electronic paper system is provided for the embodiment of the utility model;

[0025] Figure 14 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode is provided for the embodiment of the utility model;

[0026] Figure 15 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode is provided for the embodiment of the utility model;

[0027] Figure 16A plan view of another electronic paper system provided by the embodiment of the present application;

[0028] Figure 17 A circuit principle diagram of the joint driving module driving the first electrode and the second electrode provided by the embodiment of the present application;

[0029] Figure 18 A circuit principle diagram of the joint driving module driving the first electrode and the second electrode provided by the embodiment of the present application;

[0030] Figure 19 A driving simplified intention of another electronic paper system provided by the embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiment of the present application will be described clearly and completely in the following with reference to the drawings in the embodiment of the present application, obviously, the described embodiment is only a part of the embodiment of the present application, rather than all the embodiments. Based on the embodiment in the present application, all other embodiments obtained by the person skilled in the art without making creative labor should belong to the protection scope of the present application.

[0032] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] Figure 1 A plan view of an electronic paper system provided by the embodiment of the present application, Figure 2 A cross-sectional structure schematic view of a dot matrix electronic paper provided by the embodiment of the present application, Figure 3 A plan view of a dot matrix electronic paper provided by the embodiment of the present application, Figure 4 A cross-sectional structure schematic view of another dot matrix electronic paper provided by the embodiment of the present application, Figure 5 A plan view of a segment code electronic paper provided by the embodiment of the present application, Figure 6The utility model provides a kind of cross section structure schematic diagram of electronic paper system for the embodiment of the utility model, refer to Figures 1 to 6 The electronic paper system includes: at least one dot matrix electronic paper 1, at least one segment code electronic paper 2 and external circuit;

[0034] Dot matrix electronic paper 1 includes first electrode 11 and drive module 12, and drive module 12 is used to output voltage to first electrode 11 via the drive output end of drive module 12 to drive dot matrix electronic paper 1 to display;

[0035] Segment code electronic paper 2 includes at least one second electrode, and the drive module 12 of any dot matrix electronic paper is taken as joint drive module 13;

[0036] External circuit includes gating module 31, and gating module 31 includes input end and at least one output end, and at least one output end includes at least one first output end, and the first output end of gating module 31 corresponds to second electrode one by one;The drive output end A1 of joint drive module 13 is connected with the input end of gating module 31, and the first output end of gating module 31 is connected with corresponding second electrode 21, and gating module 31 is used to connect the input end and at least one first output end of gating module 31 in time-sharing, so that the voltage output of drive output end A1 of joint drive module 13 is output to corresponding second electrode 21, and second electrode 21 belonging to segment code electronic paper 2 is driven to display.

[0037] Dot matrix electronic paper 1 includes first electrode layer 111, first display layer 112 and third electrode layer 113 arranged in sequence;First electrode layer 111 includes first electrode 11, and third electrode layer 113 includes third electrode, and the first common end G1 of joint drive module 13 is connected with third electrode, for outputting first common voltage to third electrode.Dot matrix electronic paper includes the first electrode layer 111, first display layer 112 and third electrode layer 113 described above in addition to the first electrode layer 111, first display layer 112 and third electrode layer 113, still includes substrate 114 and other film layer structure, such as Figure 2 As shown, from the side of substrate 114, first electrode layer 111, adhesive layer 115 (for bonding substrate 114), sealing layer 116 (for sealing micro-cup structure in first display layer 112), first display layer 112, third electrode layer 113, deposition substrate 117 (for the substrate of deposition third electrode layer), adhesive layer 118 (for bonding with isolation layer 119), isolation layer 119 (for isolating water vapor) are arranged in sequence;Among them, substrate 114 and array layer including first electrode layer 111 are collectively referred to as drive layer 4, adhesive layer 115, sealing layer 116, first display layer 112, third electrode layer 113, deposition substrate 117, adhesive layer 118 are collectively referred to as front plane laminate (FPL) 5.Dot matrix electronic paper 1 also includes edge sealing adhesive 14 and silica gel 15, asFigure 4 As shown, edge sealing glue 14 is applied to the edge of the insulating layer 119 to fill the gap between the insulating layer 119 and the array layer to further isolate moisture. Silicone gel 15 is provided in the lower frame area of ​​the array layer to protect the wiring on the array layer. The array layer includes a multi-layer structure, which includes a first electrode layer and a pixel drive circuit layer. The first electrode layer is a film layer structure closest to the first display layer 112 in the array layer. The pixel drive circuit layer includes a pixel drive circuit for driving the pixel array.

[0038] like Figure 3 As shown, in the dot matrix electronic paper, the innermost rectangular area is the display area AA of the dot matrix electronic paper 1. The annular area of ​​a certain width outside the display area AA is the frame display area. The frame display area is used to distinguish between the display area and the non-display area, and the frame display area is provided with a first electrode layer 111. The front plane laminate 5 is attached to the drive layer 4 and covers the display area AA and the frame display area. At the same time, an ear hole is provided on the FPL. A first Ag glue dot 16 is set on the ear hole. A first common electrode is provided on the first electrode layer 111 of the drive layer 4 at the position corresponding to the first Ag glue dot 16. The FPL at the corresponding position needs to be punched to expose the electrode on the FPL. This allows the first common electrode to be connected to the electrode on the FPL through the first Ag glue dot 16, thereby connecting the drive module 12 to the electrode on the FPL through the first common electrode. The electrode on the FPL is also the third electrode mentioned above. The insulation layer 119 is attached to the FPL and covers the FPL to ensure that the insulation layer 119 can completely cover the FPL in the event of process deviation.

[0039] like Figure 2 As shown, the first electrode included in the first electrode layer 111 of the dot matrix electronic paper and the third electrode on the FPL form a driving capacitor C0 at the overlapping position. When there is a voltage difference between the first electrode and the third electrode, an electric field is formed inside the driving capacitor C0, driving the electrophoretic particles in the FPL to move, and finally presenting a specific color and pattern on the surface of the FPL, thereby realizing the display of the dot matrix electronic paper 1.

[0040] The segmented electronic paper 2 includes a second electrode layer, a second display layer, and a fourth electrode layer stacked in sequence; the second electrode layer includes at least one second electrode, the fourth electrode layer includes a fourth electrode, and the external circuit includes a second common terminal G2. The second common terminal G2 of the external circuit is connected to each fourth electrode for outputting a second common voltage to each fourth electrode.

[0041] In addition, the segment code electronic paper also includes a driving layer, an FPL, an isolation layer, an edge sealing glue, and a silica gel as shown in the dot matrix electronic paper, and the specific structures of the driving layer, the FPL, and the isolation layer are similar to those of the dot matrix electronic paper, which will not be described here again. The segment code electronic paper includes a second Ag glue point 17, which is similar to the first Ag glue point 16 in the dot matrix electronic paper, which will not be described here again.

[0042] As shown in Figure 5 The inner edge F1 of the substrate, the inner edge F2 of the isolation layer, the inner edge F3 of the FPL, the inner edge F4 of the second electrode, the outer edge F5 of the second electrode, the outer edge F6 of the FPL, the outer edge F7 of the isolation layer, and the outer edge F8 of the substrate are sequentially arranged from the inside to the outside in the plan view of the segment code electronic paper. In this embodiment, the shapes of the second electrode, the FPL, the isolation layer, and the substrate of the segment code electronic paper 2 are all annular, and the second electrode layer includes two second electrodes, namely, a first second electrode 211 and a second second electrode 212. In this embodiment, the shape of the second electrode on the segment code electronic paper 2 is annular, and in actual products, the shape of the second electrode can be numbers, characters, letters, graphics, etc., which needs to be set according to actual needs, and is not limited here.

[0043] Each dot matrix electronic paper 1 includes a driving module 12. When the dot matrix electronic paper is driven, the driving output end A1 of the driving module 12 outputs a voltage to the first electrode 11, and the first common end G1 of the driving module 12 outputs a first common voltage to the third electrode. There is a voltage difference between the third electrode and the first electrode, so that an electric field is formed inside the driving capacitor C0 formed between the third electrode and the first electrode, the electrophoretic particles in the FPL are driven to move, and finally a specific color and pattern are presented on the surface of the FPL, realizing the display of the dot matrix electronic paper.

[0044] For any second electrode of the segment code electronic paper, the voltage output by the driving output end A1 of the driving module 13 is output to the second electrode, and the second common voltage output by the second common end G2 of the external circuit is output to the fourth electrode. An electric field is formed inside the driving capacitor formed between the second electrode and the fourth electrode, the electrophoretic particles in the FPL are driven to move, and finally a specific color and pattern are presented on the surface of the FPL, realizing the display of the segment code electronic paper. The voltages of the first common end and the second common end are different, and the second common end can be grounded, with a voltage of 0 V.

[0045] The electronic paper system can include one dot matrix electronic paper and at least one segment code electronic paper, the driving module of the dot matrix electronic paper is taken as a joint driving module, and the joint driving module is connected with the input end of the gating module to transmit the voltage to the second electrode of each segment code electronic paper. The electronic paper system can also include two or more dot matrix electronic papers, and the driving module of any one dot matrix electronic paper is taken as a joint driving module, and the joint driving module is connected with the input end of the gating module to transmit the voltage to the second electrode of each segment code electronic paper. The driving modules of the remaining dot matrix electronic papers are not connected with the gating module, and the driving modules of the remaining dot matrix electronic papers only control the dot matrix electronic papers to which the driving modules belong to display.

[0046] In the embodiment, the dot matrix electronic paper includes two second electrodes, and the gating module 31 is connected with the input end and a first output end of the gating module 31 in time division, so that when the joint driving module 13 and the gating module 31 control the segment code electronic paper 2 to display, at the first time, the gating module 31 controls the input end of the gating module 31 to be connected with the first output end corresponding to the first second electrode 211 and controls the input end of the gating module 31 to be disconnected with the first output end corresponding to the second second electrode 212, so that the first voltage output by the driving output end A1 of the joint driving module 13 is transmitted to the first second electrode 211, and the FPL corresponding to the second electrode presents a first pattern. At the second time, the gating module 31 controls the input end of the gating module 31 to be disconnected with the first output end corresponding to the first second electrode 211 and controls the input end of the gating module 31 to be connected with the first output end corresponding to the second second electrode 212, so that the second voltage output by the driving output end A1 of the joint driving module 13 is transmitted to the second second electrode 212, and the FPL corresponding to the second electrode presents a second pattern, thereby realizing that different areas on the FPL display different colors and patterns. At different times, the driving output end A1 of the joint driving module 13 can output different voltages, such as the voltage required by the first second electrode 211 at the first time and the voltage required by the second second electrode 212 at the second time. In other embodiments, if the electronic paper system includes a plurality of segment code electronic papers, the gating module controls all the second electrodes included in the electronic paper system to be connected with the driving output end A1 of the joint driving module 13 in time division, as described above.

[0047] In other embodiments, the gating module is connected to the input terminal and the at least two first output terminals of the gating module in time division, for example, when the dot matrix electronic paper includes three second electrodes, and the gating module is connected to the input terminal and two first output terminals of the gating module in time division, in the first time, the gating module controls the connection between the input terminal and the first output terminal corresponding to the first second electrode, and the connection between the input terminal and the first output terminal corresponding to the second second electrode, and controls the disconnection between the input terminal and the first output terminal corresponding to the third second electrode, so that the first voltage output by the driving output terminal A1 of the joint driving module 13 is transmitted to the first second electrode and the second second electrode, so that the first pattern is presented on the FPL corresponding to the two second electrodes. In the second time, the connection between the input terminal and the first output terminal corresponding to the first second electrode is controlled to be disconnected, the connection between the input terminal and the first output terminal corresponding to the second second electrode is controlled to be disconnected, and the connection between the input terminal and the first output terminal corresponding to the third second electrode is controlled to be connected, so that the second voltage output by the driving output terminal of the joint driving module is transmitted to the third second electrode, so that the second pattern is presented on the FPL corresponding to the second electrode. In different time, the driving output terminal A1 of the joint driving module 13 can output different voltages, such as the voltage required by the first second electrode and the second second electrode in the first time, and the voltage required by the third second electrode in the second time.

[0048] The electronic paper system provided by the embodiment of the utility model includes at least one dot matrix electronic paper, at least one segment code electronic paper and external circuit, each dot matrix electronic paper includes a driving module, and the driving module of any dot matrix electronic paper is taken as the joint driving module, that is, the voltage is transmitted to the first electrode of the dot matrix electronic paper, and the voltage is transmitted to the second electrode of each segment code electronic paper, so that the dot matrix electronic paper and the segment code electronic paper share one driving module, the circuit structure is simplified, and the cost is reduced. At the same time, the electronic paper system also includes external circuit, and the external circuit includes gating module, the voltage output by the driving output terminal is transmitted to the second electrode of each segment code electronic paper in time division by using the gating module, and different voltages can be output by the driving output terminal in different time, so that each segment code electronic paper can display different colors or present different information. On the basis of sharing the driving module of any dot matrix electronic paper and reducing the system cost, the electronic paper system provided by the utility model can realize more abundant colors and information presentation.

[0049] Reference Figure 1 Optionally, the driving output terminal A1 of the joint driving module 13 is connected with the first electrode 11 in the dot matrix electronic paper 1 to which the joint driving module 13 belongs.

[0050] When the size of the electronic paper is large, two driving output terminals A1 can be provided to connect the opposite sides of the first electrode 11 to the corresponding driving output terminals respectively, so as to ensure that the opposite sides of the first electrode receive the same voltage. When the driving output terminal A1 of the joint driving module 13 is connected to the first electrode 11 in the dot-matrix electronic paper 1 to which the joint driving module 13 belongs, the driving output terminal A1 of the joint driving module 13 is connected to the array layer, and then connected to the first electrode 11 through the wire on the array layer. Taking the driving process of the electronic paper system including one dot-matrix electronic paper 1 and one segment-code electronic paper 2, and the segment-code electronic paper 2 including two second electrodes as an example:

[0051] At the first time, the input end of the control gating module 31 and the first output end corresponding to the first second electrode 211 are connected, and the input end of the control gating module 31 and the first output end corresponding to the second second electrode 212 are not connected, so that the voltage output by the joint driving module 13 is transmitted to the first electrode 11 and the first second electrode 211 as a first voltage, wherein the first voltage is the voltage required for the first second electrode 211 to display, so as to realize the display at the FPL position corresponding to the first second electrode 211. At the second time, the input end of the control gating module 31 and the first output end corresponding to the first second electrode 211 are not connected, and the input end of the control gating module 31 and the first output end corresponding to the second second electrode 212 are connected, so that the voltage output by the joint driving module 13 is transmitted to the first electrode 11 and the second second electrode 212 as a second voltage, wherein the second voltage is the voltage required for the second second electrode 212 to display, so as to realize the display at the FPL position corresponding to the second second electrode 212. At the third time, the input end of the control gating module 31 and the first output end corresponding to the first second electrode 211 are not connected, and the input end of the control gating module 31 and the first output end corresponding to the second second electrode 212 are not connected, so that the voltage output by the joint driving module 13 is transmitted to the first electrode 11 as a third voltage, so as to realize the driving of the dot-matrix electronic paper 1. Therefore, after the third time, the segment-code electronic paper 2 can display two patterns, and the dot-matrix electronic paper 1 can display one pattern, and the displays of the electronic papers are independent of each other and are not affected.

[0052] The screen system composed of the dot matrix electronic paper and the segment code electronic paper can bring more colors and information presentation to the electronic paper system. For example, the dot matrix electronic paper 1 and the segment code electronic paper 2 can use different types of electronic paper films to present more color categories. Meanwhile, the dot matrix electronic paper 1 and the segment code electronic paper 2 can be used as different information presentation modules, the dot matrix electronic paper 1 is used for presenting picture and text information, and the segment code electronic paper 2 is used for presenting state information, so that the electronic paper system can display more colors and information. Meanwhile, the driving module of the dot matrix electronic paper 1 is multiplexed as the driving module of the segment code electronic paper 2, so that one driving module can drive the dot matrix electronic paper 1 and the segment code electronic paper 2 simultaneously, and the driving module and the external circuit for the segment code electronic paper need not be additionally arranged, thereby reducing the cost of the electronic paper system. By leading out the driving output end A1 of the joint driving module 13 to the external circuit and arranging a simple gating module 31 on the external circuit, the joint driving module 13 can be used to drive and control the plurality of second electrodes of the segment code electronic paper 2, so that the segment code electronic paper has better content presentation capability.

[0053] Figure 7 The circuit principle diagram for driving the first electrode and the second electrode of the joint driving module provided in the embodiment of the utility model, refer to Figure 1 and Figure 7 Optionally, the external circuit further comprises a control module 32, and the control module 32 is used for outputting a gate control signal.

[0054] The gating module 31 comprises a switch tube 311 corresponding to the first output end of the gating module 31 one by one, for any switch tube 311, the first pole of the switch tube 311 is connected with the driving output end A1 of the joint driving module 13, the second pole of the switch tube 311 is connected with the corresponding second electrode, the gate of the switch tube 311 is connected with the gate control signal, and the gate control signals connected with different switch tubes 311 are different.

[0055] The first output end of the gating module 31 corresponds to the second electrode one by one, and the switch tube 311 corresponds to the first output end of the gating module 31 one by one, so the switch tube 311 corresponds to the second electrode one by one. The control module 32 can include an output end corresponding to the gate of the switch tube 311, the output end of the control module 32 is connected with the gate of the corresponding switch tube 311, and then outputs the gate control signal to the corresponding switch tube 311. The switch tube 311 can be a MOS tube, such as an NMOS tube or a PMOS tube. Taking the NMOS tube as an example, if the gate control signal output to the gate of the NMOS tube is low, the NMOS tube is off, and if the gate control signal output to the gate of the NMOS tube is high, the NMOS tube is on. Then, by outputting different gate control signals to different switch tubes 311, the time-sharing conduction of each switch tube 311 is controlled, and then the voltage output by the drive output end A1 of the joint driving module 13 is transmitted to each second electrode in time.

[0056] In this embodiment, two second electrodes are included, and the corresponding gating module includes two switch tubes 311, which are a first switch tube Q1 and a second switch tube Q2, and the corresponding control module 32 outputs two gate control signals, which are a first gate control signal GPIO-1 and a second gate control signal GPIO-2. The drive capacitor formed between the first electrode 11 and the third electrode is denoted as the first capacitor C11, the drive capacitor formed between the first second electrode 211 and the fourth electrode is denoted as the second capacitor C12, and the drive capacitor formed between the second second electrode 212 and the fourth electrode is denoted as the third capacitor C13. From the above, Figure 7 It can be known from the above that the two ends of the first capacitor C11 are connected with the drive output end A1 and the first common end G1 respectively, that is, the first electrode 11 of the dot matrix electronic paper 1 is connected with the drive output end A1 of the joint driving module 13, and the third electrode of the dot matrix electronic paper is connected with the first common end G1. The two ends of the second capacitor C12 or the third capacitor C13 are connected with the second electrode of the corresponding switch tube and the second common end G2 respectively, that is, the second electrode in the segment code electronic paper 2 is connected with the second electrode of the corresponding switch tube, and the fourth electrode in the segment code electronic paper 2 is connected with the second common end G2. Specifically, the two ends of the second capacitor C12 corresponding to the first second electrode 211 are connected with the second electrode of the first switch tube Q1 and the second common end G2 respectively, and the two ends of the third capacitor C13 corresponding to the second second electrode 212 are connected with the second electrode of the second switch tube Q2 and the second common end G2 respectively. The gate, the first electrode and the second electrode of the first switch tube Q1 are connected with the first gate control signal GPIO-1, the drive output end A1 of the joint driving module 13 and the first second electrode 211 respectively, and the gate, the first electrode and the second electrode of the second switch tube Q2 are connected with the second gate control signal GPIO-2, the drive output end A1 and the second second electrode 212 respectively.

[0057] In the embodiment, the external circuit can be integrated on the printed circuit board, and when the number of the second electrodes is small, the switch tubes corresponding to the second electrodes one by one can be directly integrated on the printed circuit board, so that the whole system structure is simple and easy to realize. However, when the electronic paper system includes a large number of second electrodes, if the gating module is still realized by the transistors corresponding to the second electrodes one by one, a large area on the printed circuit board will be occupied, which is not conducive to the miniaturization of the device. Therefore, when the number of the second electrodes is large, the gating module can use a multiplexing circuit (MUX circuit) to expand the number of channels.

[0058] Figure 8 Another plan view of an electronic paper system provided by the embodiment of the utility model, Figure 9 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode provided by the embodiment of the utility model is provided, Figure 8 and Figure 9 Optionally, the external circuit further comprises a control module 32, and the control module 32 is used for outputting at least one gate control signal GPIO.

[0059] The gating module is a multiplexing circuit 312, an input end of the multiplexing circuit 312 is connected with a driving output end A1 of the joint driving module 13, the multiplexing circuit 312 comprises output ends corresponding to the second electrodes one by one, that is, the output ends of the multiplexing circuit 312 serve as first output ends of the gating module, the output ends of the multiplexing circuit 312 are connected with the corresponding second electrodes, the multiplexing circuit 312 comprises at least one control end, the control end of the multiplexing circuit 312 is used for inputting the gate control signal GPIO, and the gate control signals GPIO inputted by different control ends are different.

[0060] The number of the control ends of the multiplexing circuit 312 is less than or equal to the number of the output ends of the multiplexing circuit 312.

[0061] Figure 8 and Figure 1 The difference shown in the figure is that the control module 32 realizes the communication or shutdown of the driving output end A1 of the joint driving module 13 and the second electrode by controlling the opening or closing of each channel in the multiplexing circuit 312, wherein the driving output end and the output end of one multiplexing circuit 312 can be regarded as one channel. Exemplarily, the number of the control ends of the multiplexing circuit 312 can be the same as the number of the output ends of the multiplexing circuit 312, or the multiplexing circuit 312 comprises a logic circuit to realize 2 n n=Y, wherein n is the number of the control ends of the multiplexing circuit 312, Y is the number of the output ends of the multiplexing circuit 312, and n is a positive integer greater than or equal to 1. Figure 9 and Figure 7In comparison, the difference is only that the multiplexing circuit 312 realizes the disconnection or connection of the driving output end A1 of the joint driving module 13 and each second electrode as a gating module, wherein the control end of the multiplexing circuit 312 is connected to the control module 32 to access the gate control signal GPIO, the input end of the multiplexing circuit 312 is connected to the driving output end A1 of the joint driving module 13, and the output end of the multiplexing circuit 312 is connected to the corresponding second electrode.

[0062] Figure 7 And Figure 9 The above driving mode is also applicable to the segment code electronic paper 2 with the number of break codes being 1 and greater than or equal to 3, which will be described below. Figures 10-11

[0063] Figure 10 Another circuit principle diagram for driving the first electrode and the second electrode by the joint driving module provided in the embodiment of the utility model is shown in Figure 10 , which shows the principle diagram of the driving output end A1 of the joint driving module 13 driving the first electrode 11 and Y second electrodes in the embodiment, Y being an integer greater than or equal to 3. Among them, the gating module includes the first switch tube Q1 to the Yth switch tube QY, the electronic paper system is formed with the first capacitor C11 to the Yth capacitor C1Y, and the control module 32 outputs the first gate control signal GPIO-1 to the Yth gate control signal GPIO-Y. The control module 32 realizes the connection or disconnection of the driving output end A1 of the joint driving module 13 and the second electrode by controlling the on-off of each switch tube.

[0064] Figure 11 Another circuit principle diagram for driving the first electrode and the second electrode by the joint driving module provided in the embodiment of the utility model is shown in Figure 11 , the multiplexing circuit 312 is used as a gating module, and the control module 32 controls the on / off of each channel in the multiplexing circuit 312 by the gate control signal GPIO to realize the connection / disconnection of the joint driving module 13 and the second electrode.

[0065] Figure 12 The driving simplification intention of the electronic paper system provided in the embodiment of the utility model is Figure 12 applicable to the above Figure 1 and Figure 8 ​The driving output end A1 of the joint driving module 13 is directly connected with the first electrode 11, and provides voltage for the first electrode 11. The control module 32 controls the on-off of each channel in the gating module 31 to realize the connection or disconnection between the driving output end A1 of the joint driving module 13 and the second electrode 21. In the embodiment, a switch tube or a multiplexing circuit is used as the gating module 31. In actual products, a semiconductor switch or a semiconductor integrated gating device is preferably used as the gating module 31.

[0066] Reference is made to Figure 1 and Figure 6 , or reference is made to Figure 8 and Figure 6 Optionally, the electronic paper system comprises an external circuit board 6, and the external circuit is integrated on the external circuit board 6.

[0067] The dot matrix electronic paper 1 further comprises a first flexible circuit board 18, and the driving output end A1 of the joint driving module 13 is connected with the input end of the gating module 31 on the external circuit board 6 through the first flexible circuit board 18.

[0068] The segment code electronic paper 2 comprises a connecting member, and the second electrode of the segment code electronic paper 2 is connected with the first output end of the gating module 31 through the connecting member. The connecting member comprises a second flexible circuit board 22 or a metal conductive member.

[0069] The external circuit board 6 is a printed circuit board (PCB), and the gating module 31 and the control module 32 can be integrated on the external circuit board 6 by welding or other means. In the embodiment, the driving output end A1 of the joint driving module 13 of the dot matrix electronic paper 1 is led out to the output end A2 of the first flexible circuit board 18 through the array layer and the wiring on the first flexible circuit board 18, and the first flexible circuit board 18 is connected with the external circuit board 6, thereby realizing the connection between the driving output end A1 of the joint driving module 13 and the input end of the gating module 31. The first output end of the gating module 31 on the external circuit board 6 is connected to the corresponding second electrode through the external circuit board 6, the second flexible circuit board 22 and the wiring of the array layer of the segment code electronic paper. Through the above connection, the driving output end A1 of the joint driving module 13 realizes the driving and control of the first electrode 11 of the dot matrix electronic paper 1 and the second electrode of the segment code electronic paper 2.

[0070] Figure 1 or Figure 8 In the joint driving module 13 is connected with the external circuit through the first flexible circuit board 18, and the second electrode is connected with the external circuit through the second flexible circuit board 22, in other embodiments, the connection between the external circuit and the joint driving module and the second electrode can include the following two ways.

[0071] The dot matrix electronic paper 1 further comprises a Chip On Flex (COF) circuit board, and the joint driving module and the external circuit are integrated on the Chip On Flex (COF) circuit board.

[0072] The joint driving module 13 is connected with the first electrode through the wiring of the array layer and the wiring of the Chip On Flex (COF) circuit board, and is further connected with each second electrode through the wiring of the Chip On Flex (COF) circuit board, the wiring of the array layer of the segment code electronic paper 2 and the second flexible circuit board.

[0073] The dot matrix electronic paper further comprises a Chip On Flex (COF) circuit board, and the joint driving module and the external circuit are integrated on the Chip On Flex (COF) circuit board; each second electrode is connected with the Chip On Flex (COF) circuit board and is connected with the first output end of the gate module through the Chip On Flex (COF) circuit board.

[0074] The joint driving module 13 is connected with the first electrode through the wiring of the array layer and the wiring of the Chip On Flex (COF) circuit board, and is further connected with each second electrode through the wiring of the Chip On Flex (COF) circuit board and the wiring of the array layer of the segment code electronic paper 2.

[0075] Figures 1-12 The dot matrix electronic paper further comprises a Chip On Flex (COF) circuit board, and the joint driving module and the external circuit are integrated on the Chip On Flex (COF) circuit board; each second electrode is connected with the Chip On Flex (COF) circuit board and is connected with the first output end of the gate module through the Chip On Flex (COF) circuit board. Figures 13-19 The dot matrix electronic paper further comprises a Chip On Flex (COF) circuit board, and the joint driving module and the external circuit are integrated on the Chip On Flex (COF) circuit board; each second electrode is connected with the Chip On Flex (COF) circuit board and is connected with the first output end of the gate module through the Chip On Flex (COF) circuit board.

[0076] Figure 13 The dot matrix electronic paper further comprises a Chip On Flex (COF) circuit board, and the joint driving module and the external circuit are integrated on the Chip On Flex (COF) circuit board; each second electrode is connected with the Chip On Flex (COF) circuit board and is connected with the first output end of the gate module through the Chip On Flex (COF) circuit board. Figure 13 Optionally, the gate module 31 comprises at least two output ends, and the at least two output ends further comprise at least one second output end, the second output end corresponds to the first electrode 11, the second output end of the gate module 31 is electrically connected with the corresponding first electrode 11, and the gate module 31 is used for time-divisionally connecting the input end and the at least one output end of the gate module 31, so that the voltage output by the driving output end A1 of the joint driving module 13 is time-divisionally transmitted to each first electrode 11 and each second electrode 21.

[0077] The output end of the gating module 11 includes two types, one is a second output end for connecting with the first electrode 11, and the other is a first output end for connecting with the second electrode 21. Taking the gating module 31 as an example, the input end of the gating module 31 is connected with one of the first output end and the second output end at a time, so that the voltage output by the driving output end A1 of the joint driving module 13 is transmitted to one first electrode 11 or one second electrode 21. In the embodiment, the electronic paper system includes a dot matrix electronic paper 1 and a segment code electronic paper 2, and the segment code electronic paper 2 includes a second electrode 21. At a first time, the gating module 31 connects the input end with the first output end and disconnects the input end with the second output end, so that the joint driving module 13 outputs the first voltage to the second electrode 21 of the segment code electronic paper 2, and controls the segment code electronic paper to display a first pattern. At a second time, the gating module 31 connects the input end with the second output end and disconnects the input end with the first output end, so that the joint driving module 13 outputs the second voltage to the first electrode 11 of the dot matrix electronic paper 1, and controls the dot matrix electronic paper to display a second pattern.

[0078] The gating module 11 can include various forms, and two forms are exemplarily shown in the embodiment, one gating module is composed of a switch tube, and the other gating module adopts a multiplexing circuit, and the specific forms are as follows:

[0079] Figure 14 Another circuit principle diagram for driving the first electrode and the second electrode by the joint driving module is provided in the embodiment, and the circuit principle diagram is shown in Figure 13 and Figure 14 Optionally, the external circuit further includes a control module 32, and the control module 32 is used for outputting a gate control signal.

[0080] The gating module 31 includes a second switch tube Q2 corresponding to each first output end of the gating module 31 and a first switch tube Q1 corresponding to each second output end, for any first switch tube Q1, the first pole of the first switch tube Q1 is connected with the driving output end A1 of the joint driving module 13, the second pole of the first switch tube Q1 is connected with the corresponding first electrode 11, and the gate of the first switch tube Q1 is connected with the gate control signal.

[0081] For any second switch tube Q2, the first pole of the second switch tube Q2 is connected with the driving output end A1 of the joint driving module 13, the second pole of the second switch tube Q2 is connected with the corresponding second electrode 21, and the gate of the second switch tube Q2 is connected with the gate control signal, and the gate control signals connected with each first switch tube Q1 and each second switch tube Q2 are all different.

[0082] The first switch tube Q1 and the second switch tube Q2 can be MOS tubes, and can also be triodes, and in the embodiment, the first switch tube Q1 and the second switch tube Q2 are both NMOS tubes. The control module 32 outputs two gate control signals, which are a first gate control signal GPIO-1 applied to the first switch tube Q1 and a second gate control signal GPIO-2 applied to the second switch tube Q2. At a first time, the first switch tube Q1 is turned on in response to the high level of the first gate control signal GPIO-1, the second switch tube Q2 is turned off in response to the low level of the second gate control signal GPIO-2, and the driving output end A1 of the joint driving module 13 outputs the first voltage to the first electrode 11 of the dot matrix electronic paper 1, so that the dot matrix electronic paper 1 displays a first pattern. At a second time, the first switch tube Q1 is turned off in response to the low level of the first gate control signal GPIO-1, the second switch tube Q2 is turned on in response to the high level of the second gate control signal GPIO-2, and the driving output end A1 of the joint driving module 13 outputs the second voltage to the second electrode 21 of the segment code electronic paper 1, so that the segment code electronic paper 2 displays a second pattern. The first electrode 11 and the third electrode of the dot matrix electronic paper 1 form a driving capacitor at a position where they overlap each other, denoted as a first driving capacitor C01, and the second electrode 21 and the fourth electrode of the segment code electronic paper form a driving capacitor at a position where they overlap each other, denoted as a second driving capacitor C02, from Figure 14 It can be known that the two ends of the first driving capacitor C01 are connected to the second electrode of the first switch tube Q1 and the first common end respectively, wherein the first electrode 11 of the dot matrix electronic paper 1 is connected to the second electrode of the first switch tube Q1, and the third electrode is connected to the first common end G1. The two ends of the second driving capacitor C02 are connected to the second electrode of the second switch tube Q2 and the second common end G2 respectively, wherein the second electrode 21 of the segment code electronic paper 2 is connected to the second electrode of the second switch tube Q2, and the fourth electrode is connected to the second common end G2.

[0083] In the above embodiment, only a case where the segment code electronic paper 2 includes one second electrode 21 is exemplarily shown, and the segment code electronic paper 2 can also include a plurality of second electrodes 21, as shown in Figure 15 Figure 15 Another circuit principle diagram for driving the first electrode and the second electrode by the joint driving module provided in the embodiment of the utility model, Figure 15 In the embodiment, the segment code electronic paper 2 includes N second electrodes, N is an integer greater than or equal to 2, and correspondingly, the gating module includes N first second switch tubes Q21 to Nth second switch tubes Q2N, forms N first second driving capacitors C021 to Nth second driving capacitors C02N, and the control module outputs one first gate control signal GPIO-1, N first second gate control signals GPIO-21 to Nth second gate control signals GPIO-2N. And the driving process of the plurality of second electrodes 21 is the same as​Figure 13 and Figure 14 Similarities are not described here.

[0084] Figure 16 Another plan view of an electronic paper system provided by the embodiment of the present application, Figure 17 Another circuit principle diagram of the joint driving module driving the first electrode and the second electrode provided by the embodiment of the present application, refer to Figure 16 and Figure 17 Optionally, the external circuit further comprises a control module 32, and the control module 32 is configured to output at least one gate control signal GPIO.

[0085] The gate control module is a multiplexing circuit 312, an input end of the multiplexing circuit 312 is connected with a driving output end A1 of the joint driving module 13, the multiplexing circuit 312 comprises a first gate output end corresponding to each first electrode 11 and a second gate output end corresponding to each second electrode 21, the first gate output end of the multiplexing circuit 312 is connected with the corresponding first electrode 11, the second gate output end of the multiplexing circuit 312 is connected with the corresponding second electrode 21, a control end of the multiplexing circuit 312 is configured to input the gate control signal GPIO, and different control ends input different gate control signals.

[0086] The number of the control end of the multiplexing circuit 312 is less than or equal to the sum of the number of the first gate output end and the number of the second gate output end of the multiplexing circuit.

[0087] Figure 16 and Figure 13 The difference is only that the control module 32 controls the opening or closing of each channel to realize the connection or disconnection of the driving output end A1 of the joint driving module 13 and the second electrode. Exemplarily, the number of the control end of the multiplexing circuit 312 can be the same as the number of the output end of the multiplexing circuit 312, or the multiplexing circuit 312 comprises a logic circuit to realize 2 h h = m, wherein h is the number of the control end of the multiplexing circuit 312, and m is the sum of the number of the first gate output end and the number of the second gate output end of the multiplexing circuit 312. Figure 17 and Figure 14 Compared with the difference is only that the multiplexing circuit 312 realizes the disconnection or connection of the driving output end A1 of the joint driving module 13 and each second electrode as a gate control module, wherein the control end of the multiplexing circuit 312 is connected with the control module 32 to input the gate control signal GPIO, the input end of the multiplexing circuit 312 is connected with the driving output end A1 of the joint driving module 13, the first gate output end of the multiplexing circuit 312 is connected with the corresponding first electrode, and the second gate output end of the multiplexing circuit 312 is connected with the corresponding second electrode.

[0088] The above embodiment only exemplifies the case where the segment code electronic paper 2 includes one second electrode 21. The segment code electronic paper 2 may also include multiple second electrodes 21, such as Figure 18 shown. Figure 18 Another circuit schematic diagram of a joint driving module driving a first electrode and a second electrode provided in an embodiment of the present utility model is shown. Figure 18 The example shows that the segment code electronic paper 2 includes N second electrodes, N is an integer greater than or equal to 2, and accordingly, the segment code electronic paper forms the first second driving capacitor C021 to the Nth second driving capacitor C02N. And the driving process of the plurality of second electrodes 21 is the same as Figure 17 Similar, no further description is given here.

[0089] refer to Figure 13 or Figure 16 The dot matrix electronic paper 1 further includes a first flexible circuit board 18, the segment code electronic paper 2 further includes a second flexible circuit board 22, and the electronic paper system further includes an external circuit board 6. Figure 13 As shown in FIG16 , the first electrode 11 of the dot-matrix electronic paper 1 is connected to the second electrode of the corresponding switch on the external circuit board 6 or the first gate output terminal of the multiplexing circuit via the array layer of the dot-matrix electronic paper, the FPC of the dot-matrix electronic paper, and the external circuit board 6. The first common electrode on the dot-matrix electronic paper is connected to the first common terminal G1 of the driver module of the dot-matrix electronic paper 1 via the wiring on the array layer of the dot-matrix electronic paper 1. The drive output terminal A1 of the joint drive module 13 is connected to the first electrode of each switch on the external circuit board 6 or the input terminal of the multiplexing circuit via the wiring on the array layer of the dot-matrix electronic paper 1, the FPC of the dot-matrix electronic paper 1, and the wiring on the external circuit board 6. The external circuit board 6 is provided with a gate module and a control module. The control module 32 is connected to the gate of each switch or the control terminal of the multiplexing circuit via the wiring on the external circuit board 6. The output of the gating module 31 on the external circuit board 6, also known as the second electrode of the second switching transistor or the second gating output of the multiplexing circuit, is connected to the second electrode via the external circuit board 6, the FPC of the segmented electronic paper 2, and the traces on the array layer of the segmented electronic paper 2. The second common electrode of the segmented electronic paper 2 is ultimately connected to the second common terminal G2 on the external circuit board 6 via the array layer of the segmented electronic paper, the FPC of the segmented electronic paper 2, and the traces on the external circuit board 6. Through these connections, the driving output terminal A1 of the combined driving module 13 drives and controls the first electrode of the dot matrix electronic paper 1 and the second electrode of the segmented electronic paper 2.

[0090] Figure 19 Another embodiment of the present invention provides a simplified driving intention for an electronic paper system. Figure 19 Applicable to the above Figure 13and Figure 16 The plan view of the first electrode 11 and the second electrode 21, the driving output end A1 of the joint driving module 13 is connected with the first electrode 11 through the gating module, and the voltage is provided for the first electrode 11. The control module 32 controls the on-off of each channel in the gating module 31 to realize the connection or disconnection between the driving output end A1 of the joint driving module 13 and each first electrode 11 and each second electrode 21, so that all the first electrodes 11 and the second electrodes 21 are connected with the driving output end A1 of the joint driving module 13 in time-sharing mode, and then the display of the picture of the dot matrix electronic paper and the display of each segment code in the segment code electronic paper do not affect each other, so that the color and information of the electronic paper system are more abundant. At the same time, the segment code electronic paper and the dot matrix electronic paper share the same driving module, the structure is simple, and the cost is lower.

[0091] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, each step described in the present application can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

[0092] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An electronic paper system, characterized in that: include: At least one dot matrix electronic paper, at least one segment code electronic paper and an external circuit; The dot matrix electronic paper includes a first electrode and a driving module, wherein the driving module is configured to output a voltage to the first electrode via a driving output terminal of the driving module to drive the dot matrix electronic paper display; The segment code type electronic paper includes at least one second electrode, and any driving module of the dot matrix type electronic paper is used as a joint driving module; The external circuit includes a gating module, which includes an input end and at least one output end, the at least one output end including at least one first output end, and the first output end of the gating module corresponds to the second electrode; the input end of the gating module is connected to the driving output end of the combined driving module, and the first output end of the gating module is connected to the corresponding second electrode. The gating module is used to connect the input end of the gating module and at least one first output end in a time-sharing manner, so that the voltage output by the driving output end of the combined driving module is output to the corresponding second electrode, thereby driving the segment code electronic paper display to which the second electrode belongs.

2. The electronic paper system according to claim 1, wherein: The driving output end of the combined driving module is connected to the first electrode in the dot matrix electronic paper to which the combined driving module belongs.

3. The electronic paper system according to claim 2, wherein: The external circuit further includes a control module, and the control module is used to output a gate control signal; The gating module includes a switching tube corresponding one-to-one to the first output end of the gating module. For any of the switching tubes, the first electrode of the switching tube is connected to the driving output end of the joint driving module, the second electrode of the switching tube is connected to the corresponding second electrode, and the gate of the switching tube is connected to the gate control signal, and different switching tubes are connected to different gate control signals.

4. The electronic paper system according to claim 2, wherein: The external circuit further includes a control module, and the control module is configured to output at least one gate control signal; The gating module is a multiplexing circuit, the input end of the multiplexing circuit is connected to the driving output end of the joint driving module, the multiplexing circuit includes an output end corresponding to each second electrode one by one, the output end of the multiplexing circuit is connected to the corresponding second electrode, and the multiplexing circuit includes at least one control end, the control end of the multiplexing circuit is used to access the gate control signal, and different control ends access different gate control signals; The number of control terminals of the multiplexing circuit is less than or equal to the number of output terminals of the multiplexing circuit.

5. The electronic paper system according to claim 1, wherein: The gating module includes at least two output ends, and the at least two output ends further include at least one second output end, the second output end corresponds to the first electrode, and the second output end of the gating module is electrically connected to the corresponding first electrode. The gating module is used to connect the input end and at least one output end of the gating module in a time-sharing manner, so that the voltage output by the driving output end of the joint driving module is transmitted to each of the first electrodes and each of the second electrodes in a time-sharing manner.

6. The electronic paper system according to claim 5, characterized in that: The external circuit further includes a control module, and the control module is used to output a gate control signal; The gating module includes a second switching tube corresponding one-to-one to the first output terminal of each gating module, and a first switching tube corresponding one-to-one to each second output terminal. For any of the first switching tubes, the first electrode of the first switching tube is connected to the driving output terminal of the joint driving module, the second electrode of the first switching tube is connected to the corresponding first electrode, and the gate of the first switching tube is connected to the gate control signal. For any second switching tube, the first electrode of the second switching tube is connected to the driving output end of the joint driving module, the second electrode of the second switching tube is connected to the corresponding second electrode, the gate of the second switching tube is connected to the gate control signal, and the gate control signals connected to each first switching tube and each second switching tube are different.

7. The electronic paper system according to claim 5, characterized in that: The external circuit further includes a control module, and the control module is configured to output at least one gate control signal; The gating module is a multiplexing circuit, the input end of the multiplexing circuit is connected to the driving output end of the joint driving module, the multiplexing circuit includes a first gating output end corresponding to each first electrode and a second gating output end corresponding to each second electrode, the first gating output end of the multiplexing circuit is connected to the corresponding first electrode, and the second gating output end of the multiplexing circuit is connected to the corresponding second electrode, and the control end of the multiplexing circuit is used to receive the gate control signal, and different control ends receive different gate control signals; The number of control terminals of the multiplexing circuit is less than or equal to the sum of the number of first strobe output terminals and the number of second strobe output terminals of the multiplexing circuit.

8. The electronic paper system according to claim 1, wherein: The dot matrix electronic paper comprises a first electrode layer, a first display layer, and a third electrode layer stacked in sequence; the first electrode layer comprises the first electrode, the third electrode layer comprises a third electrode, and the first common terminal of the combined driving module is connected to the third electrode for outputting a first common voltage to the third electrode; The segment code electronic paper includes a second electrode layer, a second display layer and a fourth electrode layer stacked in sequence; the second electrode layer includes at least one second electrode, the fourth electrode layer includes a fourth electrode, the external circuit includes a second common terminal, and the second common terminal of the external circuit is connected to each of the fourth electrodes for outputting a second common voltage to each of the fourth electrodes.

9. The electronic paper system according to claim 1, wherein: The electronic paper system includes an external circuit board, and the external circuit is integrated on the external circuit board; The dot matrix electronic paper further comprises a first flexible circuit board, and the driving output end of the combined driving module is connected to the input end of the gating module on the external circuit board via the first flexible circuit board; The segment code electronic paper includes a connector, and the second electrode of the segment code electronic paper is connected to the first output end of the gating module through the connector; the connector includes a second flexible circuit board or a metal conductive member.

10. The electronic paper system according to claim 1, wherein: The dot matrix electronic paper further includes a chip-on-film circuit board, and the combined driving module and the external circuit are both integrated on the chip-on-film circuit board; The segmented electronic paper includes a connector, and the second electrode of the segmented electronic paper is connected to the first output end of the gating module through the connector; the connector includes a second flexible circuit board or a metal conductive component, or each of the second electrodes is connected to the chip-on-film circuit board, and is connected to the first output end of the gating module through the chip-on-film circuit board.

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