Electronic paper system

Abstract

The utility model discloses an electronic paper system which comprises at least one piece of dot-matrix type electronic paper and at least one piece of segment code type electronic paper. The dot-matrix electronic paper comprises a second electrode layer, a first display layer and a first electrode layer which are stacked in sequence; the first electrode layer comprises a first electrode, the dot-matrix electronic paper further comprises a driving module, and a first common pin of the driving module is connected with the first electrode and used for outputting first common voltage to the first electrode; the segment code type electronic paper comprises a fourth electrode layer, a second display layer and a third electrode layer; the third electrode layer comprises a third electrode, the fourth electrode layer comprises a fourth electrode, a second common pin of the driving module is connected with the third electrode and used for outputting a second common voltage to the third electrode, and a driving pin of the driving module is connected with the fourth electrode and used for outputting a driving voltage to the fourth electrode. The driving module of the dot-matrix type electronic paper can provide driving voltage for the segment code type electronic paper, the circuit structure of the electronic paper system is simplified, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic paper, and particularly relates to an electronic paper system. Background Art

[0002] The display screen of electronic paper is a display screen made by using electrophoretic display technology. By applying voltage to each pixel electrode through a control circuit on the array layer, the colored electrophoretic particles in the electronic paper film are driven to move to achieve image display. As a reflective display screen, after the image is updated, the electronic paper display screen can be maintained for a long time without continuous refreshing, so the power consumption is very low. Due to its many characteristics such as low power consumption, wide viewing angle, high contrast, and eye protection, the electronic paper display screen is increasingly widely used in many fields such as electronic price tags, e-books, billboards, etc.

[0003] According to different driving methods, electronic paper can be divided into dot matrix electronic paper and segment code electronic paper. The dot matrix electronic paper is driven by a dot matrix driving chip, and the segment code electronic paper is driven by a segment code driving chip. At the same time, in order to ensure the normal operation of the driving chip, external power supply, communication, voltage stabilization, control and other supporting circuits need to be set for both the dot matrix driving chip and the segment code driving chip. Therefore, for a dual-screen system composed of dot matrix electronic paper and segment code electronic paper, dot matrix driving chips and segment code driving chips and their respective supporting circuits need to be set for the display screens of the two electronic papers respectively. The existing separate driving method has a complex circuit structure and high cost. Summary of the Utility Model

[0004] The utility model provides an electronic paper system to solve the problems of complex structure and high cost of the existing dual-screen system.

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

[0006] The dot matrix electronic paper includes a second electrode layer, a first display layer, and a first electrode layer stacked in sequence; the first electrode layer includes a first electrode, and the dot matrix electronic paper further includes a driving module. The first common pin of the driving module is connected to the first electrode for outputting a first common voltage to the first electrode;

[0007] The segment code electronic paper includes a fourth electrode layer, a second display layer, and a third electrode layer stacked in sequence; the third electrode layer includes a third electrode, the fourth electrode layer includes a fourth electrode, the second common pin of the driving module is connected to the third electrode for outputting a second common voltage to the third electrode, and the driving pin of the driving module is connected to the fourth electrode for outputting a driving voltage to the fourth electrode.

[0008] Optionally, the driving module includes a driving chip, a first flexible circuit board, and a printed circuit board;

[0009] The second electrode layer includes a first common electrode;

[0010] The first common electrode is respectively connected to the first electrode and the first end of the driving chip; the driving chip is configured to generate the first common voltage according to the first voltage output by the printed circuit board and output it through the first end of the driving chip;

[0011] The second end of the driving chip is connected to the first end of the first flexible circuit board, and the second end of the first flexible circuit board is connected to the first end of the printed circuit board; there is a connection between the first end and the second end of the first flexible circuit board; the driving chip is configured to generate the driving voltage according to the second voltage output by the printed circuit board and output it through the second end of the driving chip;

[0012] The first end of the printed circuit board is connected to the fourth electrode, the ground end of the printed circuit board is connected to the third electrode, and the ground end of the printed circuit board is configured to output the second common voltage.

[0013] Optionally, the segmental electronic paper further includes a second flexible circuit board, the fourth electrode layer further includes a second common electrode, the second common electrode is insulated from the fourth electrode, the second common electrode is respectively connected to the third electrode and the first end of the second flexible circuit board, the second end of the second flexible circuit board is connected to the second end of the printed circuit board, and the second end of the printed circuit board is connected to the ground end of the printed circuit board; there is a connection between the first end and the second end of the second flexible circuit board;

[0014] The third end of the second flexible circuit board is connected to the fourth electrode, and the fourth end of the second flexible circuit board is connected to the third end of the printed circuit board; there is a connection between the third end and the fourth end of the second flexible circuit board, and there is a connection between the first end and the third end of the printed circuit board.

[0015] Optionally, the fourth electrode layer is integrated on the second flexible circuit board.

[0016] Optionally, the segmental electronic paper further includes a first conductive member and a second conductive member, the fourth electrode layer includes a second common electrode, the second common electrode is insulated from the fourth electrode, the second common electrode is respectively connected to the third electrode and the first conductive member, the first conductive member is further connected to the second end of the printed circuit board, and the second end of the printed circuit board is connected to the ground end of the printed circuit board;

[0017] The second conductive member is respectively connected to the fourth electrode and the third terminal of the printed circuit board, and the first terminal and the third terminal of the printed circuit board are connected.

[0018] Optionally, the driving module includes a first flexible circuit board and a driving chip;

[0019] The second electrode layer includes a first common electrode, and the first common electrode is respectively connected to the first electrode and the first terminal of the driving chip; the driving chip is configured to generate the first common voltage according to the first voltage output by the first flexible circuit board and output the first common voltage through the first terminal of the driving chip;

[0020] The second terminal of the driving chip is connected to the first terminal of the first flexible circuit board; the driving chip is configured to generate the driving voltage according to the second voltage output by the first flexible circuit board and output the driving voltage through the second terminal of the driving chip;

[0021] The segmental electronic paper further includes a second flexible circuit board, the fourth electrode layer includes a second common electrode, the second common electrode is insulated from the fourth electrode, the second common electrode is respectively connected to the third electrode and the first terminal of the second flexible circuit board, the first terminal of the second flexible circuit board is connected to the second terminal of the second flexible circuit board, and the second terminal of the second flexible circuit board is connected to the ground terminal of the first flexible circuit board; the ground terminal of the first flexible circuit board is configured to output the second common voltage;

[0022] The fourth electrode is connected to the third terminal of the second flexible circuit board, and the fourth terminal of the second flexible circuit board is connected to the second terminal of the first flexible circuit board; the third terminal of the second flexible circuit board is connected to the fourth terminal of the second flexible circuit board, and the first terminal of the first flexible circuit board is connected to the second terminal of the first flexible circuit board.

[0023] Optionally, the driving module includes a chip on film circuit board and a driving chip;

[0024] The second electrode layer includes a first common electrode, the first common electrode is respectively connected to the first electrode and the first terminal of the chip on film circuit board, and the first terminal of the chip on film circuit board is connected to the first terminal of the driving chip; the driving chip is configured to generate the first common voltage according to the first voltage output by the chip on film circuit board and output the first common voltage through the first terminal of the driving chip;

[0025] The second terminal of the chip on film circuit board is connected to the second terminal of the driving chip; the driving chip is configured to generate the driving voltage according to the second voltage output by the chip on film circuit board and output the driving voltage through the second terminal of the driving chip;

[0026] The segment type electronic paper further includes a second flexible circuit board, and the fourth electrode layer includes a second common electrode;

[0027] The second common electrode is respectively connected to the third electrode and the first end of the second flexible circuit board, and the second end of the second flexible circuit board is connected to the ground end of the COF circuit board; the first end and the second end of the second flexible circuit board are connected; the ground end of the COF circuit board is used to output the second common voltage;

[0028] The fourth electrode is connected to the third end of the second flexible circuit board, and the fourth end of the second flexible circuit board is connected to the second end of the driving chip; the third end and the fourth end of the second flexible circuit board are connected.

[0029] Optionally, the driving module includes a COF circuit board and a driving chip;

[0030] The second electrode layer includes a first common electrode, and the first common electrode is respectively connected to the first electrode and the first end of the COF circuit board, and the first end of the COF circuit board is connected to the first end of the driving chip; the driving chip is configured to generate the first common voltage according to the first voltage output by the COF circuit board and output it through the first end of the driving chip;

[0031] The second end of the COF circuit board is connected to the second end of the driving chip; the driving chip is configured to generate the driving voltage according to the second voltage output by the COF circuit board and output it through the second end of the driving chip;

[0032] The fourth electrode layer includes a second common electrode;

[0033] The second common electrode is respectively connected to the third electrode and the third end of the COF circuit board, and the third end of the COF circuit board is connected to the ground end of the COF circuit board; the ground end of the COF circuit board is used to output the second common voltage;

[0034] The fourth electrode is connected to the fourth end of the COF circuit board, and the fourth end of the COF circuit board is connected to the second end of the driving chip.

[0035] Optionally, the dot matrix type electronic paper includes a main display area and a border display area surrounding the main display area. In the border display area: the second electrode layer includes a second electrode;

[0036] The driving pin of the driving module is further connected to the second electrode for outputting the driving voltage to the second electrode.

[0037] Optionally, the shape of the second electrode is any one of a closed ring shape, an L shape, a U shape, a C shape, an I shape, and a broken ring shape;

[0038] and / or, the shape of the fourth electrode is any one of a closed ring shape, an L shape, a U shape, a C shape, an I shape, and a broken ring shape.

[0039] The electronic paper system in the embodiment of the present invention includes at least one dot matrix electronic paper and at least one segment code electronic paper. The fourth electrode of the segment code electronic paper is connected to the driving pin of the driving module of the dot matrix electronic paper. The driving module is used to output a driving voltage to the fourth electrode to drive the segment code electronic paper to display. When the border display area of the dot matrix electronic paper needs to be lit, a driving voltage can be output to the second electrode through the driving pin to drive the border display area to display. The driving module of the dot matrix electronic paper is reused as the driving module of the segment code electronic paper. The driving module of the dot matrix electronic paper can simultaneously provide driving voltages for the dot matrix electronic paper and the segment code electronic paper, without the need to additionally set a driving module for the segment code electronic paper, simplifying the circuit structure of the electronic paper system and reducing costs.

[0040] 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 present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0042] Figure 1 It is a schematic plan view of an electronic paper system provided by an embodiment of the present invention;

[0043] Figure 2 It is a schematic plan view of a segment code electronic paper in an electronic paper system provided by an embodiment of the present invention;

[0044] Figure 3 It is a specific schematic structural view of a cross-sectional structure of a dot matrix electronic paper in an electronic paper system provided by an embodiment of the present invention;

[0045] Figure 4 It is a schematic cross-sectional structure view of a dot matrix electronic paper in an electronic paper system provided by an embodiment of the present invention;

[0046] Figure 5Schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0047] Figure 6 Schematic plan structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0048] Figure 7 Schematic plan structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0049] Figure 8 Schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0050] Figure 9 Schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0051] Figure 10 Schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0052] Figure 11 Schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0053] Figure 12 Schematic plan structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0054] Figure 13 Schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present utility model;

[0055] Figure 14 Schematic plan structure diagram of another electronic paper system provided by an embodiment of the present utility model. Detailed implementation manners

[0056] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0057] It should be noted that the terms "first", "second", etc. in the description, claims and the above drawings of the present utility model are used to distinguish similar objects and do not necessarily need 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 utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0058] Figure 1 FIG. 4 is a schematic plan view of a planar structure of an electronic paper system provided by an embodiment of the present utility model. Figure 2 FIG. 5 is a schematic plan view of a segment-type electronic paper of an electronic paper system provided by an embodiment of the present utility model. Figure 3 FIG. 8 is a specific schematic structural view of a cross-sectional structure of a dot-matrix electronic paper of an electronic paper system provided by an embodiment of the present utility model. Refer to Figures 1 - 3 , the electronic paper system includes: at least one dot-matrix electronic paper 1 and at least one segment-type electronic paper 2; wherein, at least one segment-type electronic paper 2 can be a one-segment segment-type electronic paper 2.

[0059] The dot-matrix electronic paper 1 includes a main display area AA and a border display area AB surrounding the main display area. The dot-matrix electronic paper 1 further includes a second electrode layer, a first display layer 12 and a first electrode layer 13 which are sequentially stacked; the first electrode layer 13 includes a first electrode. In the border display area AB: the second electrode layer includes a second electrode 111; the dot-matrix electronic paper 1 further includes a driving module 10. The first common pin A1 of the driving module 10 is connected to the first electrode for outputting a first common voltage to the first electrode.

[0060] The segment-type electronic paper 2 includes a fourth electrode layer, a second display layer and a third electrode layer which are sequentially stacked. The third electrode layer includes a third electrode, and the fourth electrode layer includes a fourth electrode 21; the second common pin A2 of the driving module 10 is connected to the third electrode for outputting a second common voltage to the third electrode, and the driving pin A3 of the driving module 10 is connected to the fourth electrode 21 for outputting a driving voltage to the fourth electrode 21.

[0061] Specifically, the display area AA of the dot matrix electronic paper 1 can be rectangular for main display. The border display area AB of the dot matrix electronic paper 1 is arranged around the display area AA. The border display area AB is a tolerance area set for subsequent encapsulation of the dot matrix electronic paper 1. The inner edge of the vertical projection of the subsequently set encapsulation structure can be located within the vertical projection of the border display area AB to avoid blocking the display area AA.

[0062] The second electrode 111 is an integral structure and can be any one of a closed ring, L-shaped, U-shaped, C-shaped, I-shaped, and broken ring. The shape of the fourth electrode 21 is any one of a closed ring, L-shaped, U-shaped, C-shaped, I-shaped, and broken ring. The driving module 10 outputs a first common voltage to the first electrode through the first common pin A1 and outputs a driving voltage to the second electrode 111 through the driving pin A3. The electronic ink in the first display layer 12 located in the border display area AB moves under the action of the electric field between the first electrode and the second electrode 111, thereby realizing the display of the picture. Among them, according to the design requirements, it can be determined whether the driving pin A3 of the driving module 10 is connected to the second electrode 111. If the border display area AB needs to be displayed, the driving pin A3 of the driving module 10 is connected to the second electrode 111. If the border display area AB does not need to be displayed, the driving pin A3 of the driving module 10 is not connected to the second electrode 111.

[0063] In addition, for the dot matrix electronic paper 1, the second electrode layer further includes a plurality of mutually insulated pixel electrodes at positions corresponding to the display area AA. The pixel electrodes are used to form a pixel array of the display area AA. The driving module 10 is further used to output a pixel voltage to the pixel driving circuit connected to the pixel electrodes, so that the first display layer 12 located in the display area AA realizes display under the drive of the first electrode and the pixel electrodes, and then displays an effective picture.

[0064] The driving module 10 outputs a second common voltage to the third electrode through the second common pin A2. Among them, the second common voltage is different from the first common voltage, and the potential of the second common voltage can be the ground potential, that is, 0V. The driving module 10 outputs a driving voltage to the fourth electrode 21 through the driving pin A3. The electrophoretic particles in the second display layer move under the action of the electric field generated by the third electrode and the fourth electrode 21, thereby realizing the display of the segmental electronic paper 2.

[0065] The e-paper system in the embodiment of the present utility model includes at least one dot matrix e-paper and at least one segment code e-paper. The fourth electrode of the segment code e-paper is connected to the driving pin of the driving module of the dot matrix e-paper. The driving module is used to output a driving voltage to the fourth electrode to drive the segment code e-paper to display. When the border display area of the dot matrix e-paper needs to be lit, a driving voltage can be output to the second electrode through the driving pin to drive the border display area to display. The driving module of the dot matrix e-paper is reused as the driving module of the segment code e-paper. The driving module of the dot matrix e-paper can simultaneously provide driving voltages for the dot matrix e-paper and the segment code e-paper, without the need to additionally set up a driving module for the segment code e-paper, simplifying the circuit structure of the e-paper system and reducing costs.

[0066] Figure 4 FIG. is a schematic cross-sectional structure diagram of a dot matrix e-paper in an e-paper system provided by an embodiment of the present utility model. Refer to Figures 1 - 4 , optionally, the dot matrix e-paper includes a driving layer 3, a front plane laminate 4 (Front Plane Laminate, FPL), and a packaging layer 5 that are sequentially stacked. The driving layer 3 includes a substrate 31 and an array layer 32 that are sequentially stacked. Among them, the array layer includes a multi-layer structure, and the multi-layer structure includes a second electrode layer and a pixel driving circuit layer. The second electrode layer is the film layer structure closest to the first display layer 12 in the array layer 32. The pixel driving circuit layer includes pixel driving circuits for driving the pixel array. The front plane laminate 4 includes an adhesive layer 41 sequentially stacked from the side of the array layer 32 away from the substrate 31: for bonding the substrate 31, a sealing layer 42, a first display layer 12, a first electrode layer 13, and a protective film layer 43: a substrate for depositing the first electrode layer 13, and an optical adhesive layer 44: for bonding with the packaging layer. Among them, the vertical projections of the front plane laminate 4 and the packaging layer 5 on the substrate 31 are both located within the vertical projection of the array layer 32 on the substrate 31, and the areas of the vertical projections of the front plane laminate 4 and the packaging layer 5 on the substrate 31 are both smaller than the area of the vertical projection of the array layer 32 on the substrate 31. Further, the packaging layer 5 covers the front plane laminate 4, and the area of the vertical projection of the packaging layer 5 is larger than the area of the vertical projection of the front plane laminate 4 to wrap the front plane laminate 4, for protecting the front plane laminate 4 and isolating moisture. The dot matrix e-paper 1 further includes a sealing edge glue 14 and a silica gel 15. The sealing edge glue 14 is coated on the edge of the packaging layer 5 for filling the gap between the packaging layer 5 and the array layer 32 to further isolate moisture. The silica gel 15 is disposed in the lower border area of the array layer 32 to protect the traces on the array layer 32. As Figure 2As shown, the innermost rectangular area is the display area AA of the dot matrix electronic paper 1, that is, the effective display area. An annular area with a certain width outside the display area AA is the border display area AB, and the border display area AB is used to distinguish the display area AA and the non-display area. The front plane laminate 4 is attached to the array layer 32 and covers the display area AA and the border display area AB. At the same time, ear holes are provided on the FPL, and the first Ag paste dots 16 are arranged on the ear holes. A first common electrode is arranged on the second electrode layer of the array layer 32 corresponding to the position of the first Ag paste dots 16. Holes need to be drilled on the FPL corresponding to the position to expose the electrodes on the FPL. In this way, the first common electrode and the electrodes on the FPL can be connected through the first Ag paste dots 16, and further the driving module can be connected to the electrodes on the FPL through the first common electrode on the array layer. Among them, the electrodes on the FPL are the first electrodes mentioned later. The encapsulation layer 5 is attached to the FPL and covers the FPL to ensure that the encapsulation layer 5 can completely cover the FPL under the condition of process deviation.

[0067] The segment code electronic paper also includes a driving layer, a front plane laminate (Front Plane Laminate, FPL, hereinafter referred to as FPL for short), an encapsulation layer, edge sealing glue and silica gel, and the specific structures of the driving layer, the front plane laminate and the encapsulation layer are similar to those of the dot matrix electronic paper and will not be elaborated here. The plane structure diagram of the segment code electronic paper refers to Figure 1 , and the segment code electronic paper includes a second Ag paste dot 17, which will not be elaborated here.

[0068] Figure 5 This is a schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present invention. Figure 6 This is a schematic plane structure diagram of another electronic paper system provided by an embodiment of the present invention. Refer to Figures 5 - 6 , optionally, the driving module includes a driving chip 101, a first flexible circuit board 102 and a printed circuit board 103;

[0069] The second electrode layer includes a first common electrode;

[0070] The first common electrode is respectively connected to the first electrode and the first end of the driving chip 101; the driving chip 101 is used to generate a first common voltage according to the first voltage output by the printed circuit board 103 and output it through the first end B1 of the driving chip 101;

[0071] The second terminal B2 of the driving chip 101 is connected to the first terminal C1 of the first flexible circuit board 102, and the second terminal C2 of the first flexible circuit board 102 is connected to the first terminal of the printed circuit board 103; a connection is made between the first terminal C1 and the second terminal C2 of the first flexible circuit board 102; the driving chip 101 is configured to generate a driving voltage according to the second voltage output by the printed circuit board 103 and output it through the second terminal B2 of the driving chip 101. In this embodiment, it is exemplarily shown that the second terminal of the driving chip 101 is also electrically connected to the second electrode 111. As Figure 6 shown, the vertical projection of the second terminal C2 of the first flexible circuit board 102 overlaps with the vertical projection of the first terminal of the printed circuit board 103.

[0072] Specifically, a hole is drilled between the first common electrode and the first electrode and the hole is filled with the first Ag paste dot 16. After the driving chip 101 outputs the first common voltage to the first common electrode, the first common electrode transmits the first common voltage to the first electrode through the first Ag paste dot 16, and finally the driving chip 101 applies the first common voltage to the first electrode. Among them, Figure 6 the connection between the driving chip 101 and the first Ag paste dot 16 refers to the connection between the driving chip 101 and the first common electrode at the corresponding position of the first Ag paste dot 16, rather than the direct connection between the driving chip 101 and the first Ag paste dot 16. Various functional devices are integrated on the printed circuit board (Printed Circuit Board, PCB) 103, such as a power supply for outputting an initial voltage. The printed circuit board 103 steps down the initial voltage output by the power supply to different degrees to generate a first voltage and a second voltage respectively and outputs them to the driving chip 101. The driving chip 101 is configured to boost the first voltage to generate a first common voltage and output it through the first terminal B1 of the driving chip 101, and the driving chip 101 is also configured to boost the second voltage to generate a driving voltage and output it through the second terminal B2 of the driving chip 101.

[0073] The first terminal of the printed circuit board 103 is connected to the fourth electrode 21, the grounding terminal G1 of the printed circuit board 103 is connected to the third electrode, and the grounding terminal G1 of the printed circuit board 103 is configured to output a second common voltage. The grounding terminal G1 of the printed circuit board 103 is grounded. Therefore, the second common voltage output by the grounding terminal G1 of the printed circuit board 103 is equal to 0V. In Figure 6In the embodiment shown, the segment code type electronic paper further includes a second flexible circuit board 201. The fourth electrode layer further includes a second common electrode. The second common electrode is insulated from the fourth electrode 21. The second common electrode is respectively connected to the third electrode and the first end D1 of the second flexible circuit board 201. The second end D2 of the second flexible circuit board 201 is connected to the second end of the printed circuit board 103. Among them, the vertical projection of the second end D2 of the second flexible circuit board 201 overlaps with the vertical projection of the second end of the printed circuit board 103. The second end of the printed circuit board 103 is connected to the ground end G1 of the printed circuit board 103; the first end D1 and the second end D2 of the second flexible circuit board 201 are connected. The third end D3 of the second flexible circuit board 201 is connected to the fourth electrode 21, and the fourth end D4 of the second flexible circuit board 201 is connected to the third end of the printed circuit board 103. Among them, the vertical projection of the fourth end D4 of the second flexible circuit board 201 overlaps with the vertical projection of the third end of the printed circuit board 103; the third end D3 and the fourth end D4 of the second flexible circuit board 201 are connected, and the first end and the third end of the printed circuit board 103 are connected.

[0074] Similar to the connection manner between the first common electrode and the first electrode in the dot matrix type electronic paper, the segment code type electronic paper includes a second Ag paste dot 17. A second common electrode is provided at the position corresponding to the second Ag paste dot 17. The second common electrode is connected to the second Ag paste dot 17. The second Ag paste dot 17 is connected to the third electrode by means of punching, and thus the connection between the second common electrode and the third electrode is realized through the second Ag paste dot 17. The second common voltage output by the printed circuit board 103 is applied to the second common electrode through the second flexible circuit board 201, and the second common electrode applies the second common voltage to the third electrode through the second Ag paste dot 17. Among them, Figure 6 the connection between the second Ag paste dot 17 and the second flexible circuit board 201 refers to the connection between the first end D1 of the second flexible circuit board 201 and the second common electrode corresponding to the position of the second Ag paste dot 17.

[0075] The driving pin of the driving module is also connected to the second electrode 111 for outputting a driving voltage to the second electrode 111.

[0076] In this embodiment, the first end B1 of the driving chip 101 serves as the first common pin of the driving module, the grounding end G1 of the printed circuit board 103 serves as the second common pin of the driving module, and the second end B2 of the driving chip 101 serves as the driving pin of the driving module. The driving chip 101 may further include a third end, and the functions of the third end and the second end B2 of the driving chip 101 are the same, both for outputting a driving voltage. The second end B2 and the third end of the driving chip 101 can be respectively connected to opposite sides of the second electrode 111 along the first direction, ensuring the consistency of the driving voltages received by the opposite sides of the second electrode 111. The first direction is the row direction of the pixel array. In this embodiment, the first flexible circuit board 102 is respectively lapped with the driving chip 101 and the printed circuit board 103, and the second flexible circuit board 201 is lapped with the printed circuit board 103. Thus, while the driving voltage output by the driving chip 101 through its second end B2 is transmitted to the second electrode 111, the driving voltage is also transmitted to the fourth electrode 21 through the first flexible circuit board 102, the printed circuit board 103, and the second flexible circuit board 201, realizing the driving chip 101 of the dot matrix electronic paper to drive the displays of both the dot matrix electronic paper and the segment code electronic paper simultaneously, without the need to additionally set up an external circuit for the segment code electronic paper, with a simple structure and low cost.

[0077] Figure 7 FIG. is a schematic plan view of another electronic paper system provided by an embodiment of the present invention. Refer to Figure 7 , Figure 7 and Figure 6 The difference between the electronic paper system shown and the dot matrix electronic paper does not have a border display area, that is, the second electrode is not provided, and the driving voltage output by the driving chip 101 is only applied to the fourth electrode 21 of the segment code electronic paper. And Figure 7 the fourth electrode 21 in

[0078] Figure 8 FIG. is a schematic cross-sectional view of another electronic paper system provided by an embodiment of the present invention. Refer to Figure 8 , Figure 8 and Figure 5 The difference between the cross-sectional structure shown and the cross-sectional structure is that the fourth electrode layer is integrated on the second flexible circuit board 201. Further, the substrate and the driving layer of the array layer of the segment code electronic paper are integrated on the second flexible circuit board 201, which is beneficial to the thinning of the electronic paper system.

[0079] Figure 9 FIG. is a schematic cross-sectional view of another electronic paper system provided by an embodiment of the present invention. Refer to Figure 4 and Figure 9, Optionally, the driving module includes a driving chip 101, a first flexible circuit board 102, and a printed circuit board 103; the second electrode layer includes a first common electrode; the first common electrode is respectively connected to the first electrode and the first end of the driving chip 101; the driving chip 101 is configured to generate a first common voltage according to a first voltage output by the printed circuit board 103 and output the first common voltage through the first end of the driving chip 101; the second end of the driving chip 101 is connected to the first end of the first flexible circuit board 102, and the second end of the first flexible circuit board 102 is connected to the first end of the printed circuit board 103; the first end and the second end of the first flexible circuit board 102 are connected; the driving chip 101 is configured to generate a driving voltage according to a second voltage output by the printed circuit board 103 and output the driving voltage through the second end of the driving chip 101.

[0080] The segmental electronic paper further includes a first conductive member 202 and a second conductive member. The fourth electrode layer includes a second common electrode. The second common electrode is insulated from the fourth electrode. The second common electrode is respectively connected to the third electrode and the first conductive member 202. The first conductive member 202 is further connected to the second end of the printed circuit board 103. The second end of the printed circuit board 103 is connected to the ground terminal G1 of the printed circuit board 103; the second conductive member is respectively connected to the fourth electrode and the third end of the printed circuit board 103. The first end and the third end of the printed circuit board 103 are connected.

[0081] Optionally, the first conductive member 202 and the second conductive member can be metal structures, such as metal shrapnel, as long as they have conductivity. Similar to the foregoing embodiments, there is a second common electrode on the fourth electrode layer corresponding to the position of the second Ag paste dot 17 in the segmental electronic paper. The second common electrode is connected to the second Ag paste dot 17. Holes need to be drilled on the corresponding FPL to expose the third electrode. In this way, the third electrode is connected to the second common electrode through the second Ag paste dot 17. The second common electrode can be connected to one end of the first conductive member 202 by drilling. The other end of the first conductive member 202 is connected to the second end of the printed circuit board 103, and the second end of the printed circuit board 103 is connected to the ground terminal G1 of the printed circuit board 103. Finally, the third electrode is connected to the ground terminal of the printed circuit board 103 through the second common electrode and the first conductive member 202, and the printed circuit board 103 applies a second common voltage to the third electrode. One end of the second conductive member is connected to the fourth electrode by drilling, and the other end is connected to the third end of the printed circuit board 103. The first end and the third end of the printed circuit board 103 are connected. The first end of the printed circuit board 103 is also connected to the second end B2 of the driving chip 101 through the first flexible circuit board 102. Finally, the fourth electrode is connected to the second end B2 of the driving chip 101 through the second conductive member, the printed circuit board 103, and the first flexible circuit board 102. The driving voltage output by the driving chip 101 is applied to the fourth electrode. The plan view in this embodiment can be the same as Figure 6 or Figure 7 similar, the difference is that the second flexible circuit board is replaced by the first conductive member 202 and the second conductive member. Among them, the first conductive member 202 and the second conductive member are insulated from each other. In this embodiment, the first end B1 of the driving chip 101 serves as the first common pin of the driving module, the ground terminal G1 of the printed circuit board 103 serves as the second common pin of the driving module, and the second end B2 of the driving chip 101 serves as the driving pin of the driving module.

[0082] Figure 10 is a schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present invention. Refer to Figure 3 and Figure 10 , optionally, the driving module includes a first flexible circuit board 102 and a driving chip 101;

[0083] The second electrode layer includes a first common electrode. The first common electrode is respectively connected to the first electrode and the first end of the driving chip 101. The driving chip 101 is configured to generate a first common voltage according to the first voltage output by the first flexible circuit board 102 and output it through the first end of the driving chip 101;

[0084] The second end of the driving chip 101 is connected to the first end of the first flexible circuit board 102; the driving chip is configured to generate a driving voltage according to a second voltage output by the first flexible circuit board 102 and output the driving voltage through the second end of the driving chip 101; in this embodiment, the second end of the driving chip 101 can be connected to the second electrode for outputting the driving voltage to the second electrode.

[0085] The segmental e-paper includes a second flexible circuit board 201;

[0086] The fourth electrode layer includes a second common electrode, the second common electrode is insulated from the fourth electrode, the second common electrode is respectively connected to the third electrode and the first end of the second flexible circuit board 201, the first end of the second flexible circuit board 201 is connected to the second end of the second flexible circuit board 201, and the second end of the second flexible circuit board 201 is connected to the ground end of the first flexible circuit board 102; the ground end of the first flexible circuit board 102 is used for outputting a second common voltage.

[0087] The fourth electrode is connected to the third end of the second flexible circuit board 201, and the fourth end of the second flexible circuit board 201 is connected to the second end of the first flexible circuit board 102; the third end of the second flexible circuit board 201 is connected to the fourth end of the second flexible circuit board 201, and the first end of the first flexible circuit board 102 is connected to the second end of the first flexible circuit board 102.

[0088] Similar to the foregoing solution, the first common electrode is connected to the first electrode through the first Ag paste dot 16, and the second common electrode is connected to the third electrode through the second Ag paste dot 17. In this embodiment, functional devices such as a power supply for providing an initial voltage are integrated on the first flexible circuit board 102. The first flexible circuit board 102 steps down the initial voltage output by the power supply to generate a first voltage and a second voltage respectively, and outputs the first voltage and the second voltage to the driving chip 101. The driving chip 101 is used to boost the first voltage to generate a first common voltage and output it through its first end. The driving chip 101 is used to boost the second voltage to generate a driving voltage and output it through its second end. When a display is required in the border display area, the second electrode is connected to the second end of the driving chip 101, and the driving chip 101 applies a driving voltage to the second electrode. The electrophoretic particles in the first display layer located in the border display area move under the electric field of the first electrode and the second electrode to achieve a picture display. At the same time, the third electrode in the segmental e-paper is connected to the ground end of the first flexible circuit board 102 through the second flexible circuit board 201. The first flexible circuit board 102 applies a second common voltage to the third electrode. The fourth electrode is connected to the second end of the driving chip 101 through the second flexible circuit board 201 and the first flexible circuit board 102. The driving chip 101 applies a driving voltage to the fourth electrode. The electrophoretic particles in the second display layer move under the action of the electric field generated by the third electrode and the fourth electrode to achieve a display. In this embodiment, the first end of the driving chip 101 serves as the first common pin of the driving module, the ground end of the first flexible circuit board 102 serves as the second common pin of the driving module, and the second end of the driving chip 101 serves as the driving pin of the driving module. Integrating the functional devices on the first flexible circuit board 102 in this embodiment can eliminate the need for an additional printed circuit board, with a simple structure, cost savings, and being beneficial to the thinning and lightening of the system.

[0089] Figure 11 FIG. 4 is a schematic cross-sectional structure diagram of another e-paper system provided by an embodiment of the present invention. Figure 12 FIG. 5 is a schematic plan view of another e-paper system provided by an embodiment of the present invention. Refer to Figure 4 、 Figure 11 and Figure 12 . Optionally, the driving module includes a chip on film (COF) circuit board 104 and a driving chip 101.

[0090] The second electrode layer includes a first common electrode. The first common electrode is respectively connected to the first electrode and the first end E1 of the chip on film circuit board 104. The first end of the chip on film circuit board 104 is connected to the first end B1 of the driving chip 101. The driving chip 101 is used to generate a first common voltage according to the first voltage output by the chip on film circuit board 104 and output it through the first end B1 of the driving chip 101.

[0091] The second end E2 of the flip-chip flexible printed circuit board 104 is connected to the second end B2 of the driving chip 101; the driving chip 101 is configured to generate a driving voltage according to the second voltage output by the flip-chip flexible printed circuit board 104 and output the driving voltage through the second end B2 of the driving chip 101; in this embodiment, it is exemplarily shown that the second end E2 of the flip-chip flexible printed circuit board 104 is connected to the second electrode 111 for applying a driving voltage to the second electrode 111.

[0092] The segmental electronic paper further includes a second flexible printed circuit board 201, and the fourth electrode layer includes a second common electrode;

[0093] The second common electrode is respectively connected to the third electrode and the first end D1 of the second flexible printed circuit board 201, and the second end D2 of the second flexible printed circuit board 201 is connected to the ground end G2 of the flip-chip flexible printed circuit board 104; the first end D1 and the second end D2 of the second flexible printed circuit board 201 are connected; the ground end G2 of the flip-chip flexible printed circuit board 104 is used for outputting a second common voltage;

[0094] The fourth electrode 21 is connected to the third end D3 of the second flexible printed circuit board 201, and the fourth end D4 of the second flexible printed circuit board 201 is connected to the second end B2 of the driving chip 101; the third end D3 and the fourth end D4 of the second flexible printed circuit board 201 are connected.

[0095] In this embodiment, the functional devices are integrated on the COF, a power supply is integrated on the COF, the COF steps down the initial voltage output by the power supply by different degrees to generate a first voltage and a second voltage respectively, and outputs the first voltage and the second voltage to the driving chip 101. The driving chip 101 boosts the first voltage to generate a first common voltage and outputs the first common voltage through its first end B1. The driving chip 101 is configured to boost the second voltage to generate a driving voltage B2 and output the driving voltage through its second end. Similar to the foregoing solution, the first common electrode is connected to the first electrode through the first Ag paste dot 16, and the second common electrode is connected to the third electrode through the second Ag paste dot 17. The first common voltage output by the driving chip 101 is applied to the first electrode through the flip-chip flexible printed circuit board 104, the first common electrode, and the first Ag paste dot 16 in sequence.

[0096] The second common electrode is connected to the third electrode through the second Ag paste dot 17. The COF (Chip On Film) circuit board 104 applies the output second common voltage to the third electrode successively through the second flexible circuit board 201, the second common electrode, and the second Ag paste dot 17. The driving voltage output by the driving chip 101 is transmitted to the fourth electrode successively through the COF circuit board 104 and the second flexible circuit board 201. The electrophoretic particles in the second display layer move under the action of the electric field generated by the third electrode and the fourth electrode 21 to achieve display. In this embodiment, the first end B1 of the driving chip 101 serves as the first common pin of the driving module, the grounding end G2 of the COF circuit board 104 serves as the second common pin of the driving module, and the second end B2 of the driving chip 101 serves as the driving pin of the driving module. Compared with Figure 5 the electronic paper system shown in

[0097] Figure 13 is a schematic cross-sectional structure diagram of another electronic paper system provided by an embodiment of the present invention, Figure 14 is a schematic plan structure diagram of another electronic paper system provided by an embodiment of the present invention. The driving module includes a COF circuit board 104 and a driving chip 101;

[0098] The second electrode layer includes a first common electrode. The first common electrode is respectively connected to the first electrode and the first end E1 of the COF circuit board 104. The first end E1 of the COF circuit board 104 is connected to the first end B1 of the driving chip 101. The driving chip 101 is configured to generate a first common voltage according to the first voltage output by the COF circuit board 104 and output it through the first end B1 of the driving chip 101;

[0099] The second end E2 of the COF circuit board 104 is connected to the second end B2 of the driving chip 101, so that when the border display area needs to be driven, the second electrode 111 is connected to the second end E2 of the COF circuit board 104. The driving chip 101 is configured to generate a driving voltage according to the second voltage output by the COF circuit board 104 and output it through the second end B2 of the driving chip 101. In this embodiment, it is exemplarily shown that the second end E2 of the COF circuit board 104 is connected to the second electrode 111 to apply a driving voltage to the second electrode 111.

[0100] The fourth electrode layer includes a second common electrode;

[0101] The second common electrode is respectively connected to the third electrode and the third end E3 of the COF circuit board 104. The third end E3 of the COF circuit board 104 is connected to the grounding end G2 of the COF circuit board 104. The grounding end G2 of the COF circuit board 104 is used to output the second common voltage;

[0102] The fourth electrode 21 is connected to the fourth terminal E4 of the flip-chip flexible printed circuit board 104, and the fourth terminal of the flip-chip flexible printed circuit board 104 is connected to the second terminal B2 of the driving chip 101.

[0103] This embodiment is different from Figure 11 and Figure 12 the e-paper system in that the segment code e-paper does not require an additional second flexible printed circuit board, and directly realizes the connection between the driving chip 101 and the fourth electrode through the flip-chip flexible printed circuit board 104 of the driving module. In this embodiment, the first terminal B1 of the driving chip 101 serves as the first common pin of the driving module, the ground terminal G2 of the flip-chip flexible printed circuit board 104 serves as the second common pin of the driving module, and the second terminal B2 of the driving chip 101 serves as the driving pin of the driving module. Compared with Figure 11 and Figure 12 the results of, in this embodiment, there is no need to additionally provide a second flexible printed circuit board, the structure is simpler, and the cost is lower.

[0104] Among them, in the above embodiments, when the second electrode layer includes a second electrode and the driving module is further configured to apply a driving voltage to the second electrode, the first common electrode is insulated from the second electrode.

[0105] It should be understood that the various forms of the processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0106] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. 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 modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electronic paper system, characterized in that, Comprising: at least one dot matrix electronic paper and at least one segment code electronic paper; The dot matrix electronic paper includes a second electrode layer, a first display layer, and a first electrode layer stacked in sequence; the first electrode layer includes a first electrode, and the dot matrix electronic paper further includes a driving module. A first common pin of the driving module is connected to the first electrode for outputting a first common voltage to the first electrode; The segment code electronic paper includes a fourth electrode layer, a second display layer, and a third electrode layer stacked in sequence; the third electrode layer includes a third electrode, the fourth electrode layer includes a fourth electrode, a second common pin of the driving module is connected to the third electrode for outputting a second common voltage to the third electrode, and a driving pin of the driving module is connected to the fourth electrode for outputting a driving voltage to the fourth electrode.

2. The electronic paper system according to claim 1, wherein The driving module includes a driving chip, a first flexible circuit board, and a printed circuit board; The second electrode layer includes a first common electrode; The first common electrode is respectively connected to the first electrode and a first end of the driving chip; the driving chip is configured to generate the first common voltage according to a first voltage output by the printed circuit board and output it through the first end of the driving chip; A second end of the driving chip is connected to a first end of the first flexible circuit board, and a second end of the first flexible circuit board is connected to a first end of the printed circuit board; there is a connection between the first end and the second end of the first flexible circuit board; the driving chip is configured to generate the driving voltage according to a second voltage output by the printed circuit board and output it through the second end of the driving chip; A first end of the printed circuit board is connected to the fourth electrode, a ground end of the printed circuit board is connected to the third electrode, and the ground end of the printed circuit board is configured to output the second common voltage.

3. The electronic paper system according to claim 2, wherein, The segment code electronic paper further includes a second flexible circuit board. The fourth electrode layer further includes a second common electrode. The second common electrode is insulated from the fourth electrode. The second common electrode is respectively connected to the third electrode and a first end of the second flexible circuit board. A second end of the second flexible circuit board is connected to a second end of the printed circuit board, and the second end of the printed circuit board is connected to the ground end of the printed circuit board; there is a connection between the first end and the second end of the second flexible circuit board; A third end of the second flexible circuit board is connected to the fourth electrode, and a fourth end of the second flexible circuit board is connected to a third end of the printed circuit board; there is a connection between the third end and the fourth end of the second flexible circuit board, and there is a connection between the first end and the third end of the printed circuit board.

4. The electronic paper system according to claim 3, wherein The fourth electrode layer is integrated on the second flexible circuit board.

5. The electronic paper system according to claim 2, wherein The segment code type electronic paper further includes a first conductive member and a second conductive member. The fourth electrode layer includes a second common electrode, which is insulated from the fourth electrode. The second common electrode is respectively connected to the third electrode and the first conductive member. The first conductive member is further connected to the second end of the printed circuit board, and the second end of the printed circuit board is connected to the ground end of the printed circuit board; The second conductive member is respectively connected to the fourth electrode and the third end of the printed circuit board, and the first end and the third end of the printed circuit board are connected.

6. The electronic paper system according to claim 1, characterized in that, The driving module includes a first flexible circuit board and a driving chip; The second electrode layer includes a first common electrode, which is respectively connected to the first electrode and the first end of the driving chip. The driving chip is configured to generate the first common voltage according to the first voltage output by the first flexible circuit board and output it through the first end of the driving chip; The second end of the driving chip is connected to the first end of the first flexible circuit board. The driving chip is configured to generate the driving voltage according to the second voltage output by the first flexible circuit board and output it through the second end of the driving chip; The segment code type electronic paper further includes a second flexible circuit board. The fourth electrode layer includes a second common electrode, which is insulated from the fourth electrode. The second common electrode is respectively connected to the third electrode and the first end of the second flexible circuit board. The first end of the second flexible circuit board is connected to the second end of the second flexible circuit board, and the second end of the second flexible circuit board is connected to the ground end of the first flexible circuit board. The ground end of the first flexible circuit board is used to output the second common voltage; The fourth electrode is connected to the third end of the second flexible circuit board, and the fourth end of the second flexible circuit board is connected to the second end of the first flexible circuit board. The third end of the second flexible circuit board is connected to the fourth end of the second flexible circuit board, and the first end of the first flexible circuit board is connected to the second end of the first flexible circuit board.

7. The electronic paper system according to claim 1, wherein The driving module includes a chip on film circuit board and a driving chip; The second electrode layer includes a first common electrode, which is respectively connected to the first electrode and the first end of the chip on film circuit board. The first end of the chip on film circuit board is connected to the first end of the driving chip. The driving chip is configured to generate the first common voltage according to the first voltage output by the chip on film circuit board and output it through the first end of the driving chip; The second end of the chip on film circuit board is connected to the second end of the driving chip. The driving chip is configured to generate the driving voltage according to the second voltage output by the chip on film circuit board and output it through the second end of the driving chip; The segment code type electronic paper further includes a second flexible circuit board, and the fourth electrode layer includes a second common electrode; The second common electrode is respectively connected to the third electrode and the first end of the second flexible circuit board, and the second end of the second flexible circuit board is connected to the ground end of the chip-on-film circuit board; the first end and the second end of the second flexible circuit board are connected; the ground end of the chip-on-film circuit board is used to output the second common voltage; The fourth electrode is connected to the third end of the second flexible circuit board, and the fourth end of the second flexible circuit board is connected to the second end of the driving chip; the third end and the fourth end of the second flexible circuit board are connected.

8. The electronic paper system according to claim 1, wherein The driving module includes a chip-on-film circuit board and a driving chip; The second electrode layer includes a first common electrode, and the first common electrode is respectively connected to the first electrode and the first end of the chip-on-film circuit board, and the first end of the chip-on-film circuit board is connected to the first end of the driving chip; the driving chip is configured to generate the first common voltage according to the first voltage output by the chip-on-film circuit board and output it through the first end of the driving chip; The second end of the chip-on-film circuit board is connected to the second end of the driving chip; the driving chip is configured to generate the driving voltage according to the second voltage output by the chip-on-film circuit board and output it through the second end of the driving chip; The fourth electrode layer includes a second common electrode; The second common electrode is respectively connected to the third electrode and the third end of the chip-on-film circuit board, and the third end of the chip-on-film circuit board is connected to the ground end of the chip-on-film circuit board; the ground end of the chip-on-film circuit board is used to output the second common voltage; The fourth electrode is connected to the fourth end of the chip-on-film circuit board, and the fourth end of the chip-on-film circuit board is connected to the second end of the driving chip.

9. The electronic paper system according to any one of claims 1-8, characterized in that, The dot matrix electronic paper includes a main display area and a border display area surrounding the main display area. In the border display area: the second electrode layer includes a second electrode; The driving pin of the driving module is also connected to the second electrode for outputting the driving voltage to the second electrode.

10. The electronic paper system according to claim 9, characterized in that, The shape of the second electrode is any one of a closed ring, L shape, U shape, C shape, I shape, and a broken ring; And / or, the shape of the fourth electrode is any one of a closed ring, L shape, U shape, C shape, I shape, and a broken ring.

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