Electronic paper module

Abstract

The invention discloses an electronic paper module. The electronic paper module comprises an upper waterproof film, an electronic paper film and a backboard circuit layer, the upper waterproof film is attached to the upper portion of the electronic paper film. The electronic paper film is attached to the upper portion of the backboard circuit layer. An ink layer is printed on the inner side of the upper waterproof film; the backboard circuit layer comprises a display area comprising a plurality of display units and a frame on the periphery of the display area; the ink layer comprises ink grids which are consistent with the display units on the backboard circuit layer in number and shape; the color of the frame of the printing ink grid is consistent with the color of a splicing seam formed when the two electronic paper modules are spliced; and the frame width of the printing ink grid is consistent with the width of the abutted seam. According to the invention, the display effect of the abutted seam can be improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an electronic paper module. Background Art

[0002] E-paper ink screen display has the characteristics of ultra-low power consumption, low-frequency display, and power saving, and has a wide range of applications in electronic price tags, advertising signs, and bus stops. As e-paper application scenarios are increasingly widely used, color-changing e-paper display technology is increasingly attracting attention from consumer product terminals due to its simple design, flexible bending, and color-changing display, such as consumer electronics battery back shells, decorative walls, clothing logo or pattern design, and cultural and creative products.

[0003] With the continuous development of electronic paper technology, in order to achieve a larger display effect, especially in the application of large-size electronic paper display screens, splicing multiple electronic paper modules into a large screen has become a common display method, but there will be seams in the splicing. The seam refers to the visual gap or inconsistency between adjacent modules. This problem significantly affects the overall display effect. Especially when displaying images, the gap at the joint will interrupt the continuity of the image and destroy the viewing experience. When displaying a large area of ​​solid color background or complex patterns, the impact of the seam is particularly prominent, and the transition of color and pattern becomes unsmooth, resulting in undesirable visual effects. In addition, there may be inconsistencies in the brightness or color of the display unit and the surrounding area at the seam, causing the displayed content to appear blurred or distorted at the joint, further increasing visual interference. Summary of the invention

[0004] The object of the present invention is to provide an electronic paper module capable of improving the seam display effect.

[0005] In order to achieve the above-mentioned object, an embodiment of the present invention provides an electronic paper module, comprising: an upper waterproof film, an electronic paper film and a backplane circuit layer;

[0006] The upper waterproof film is attached to the upper part of the electronic paper film; the electronic paper film is attached to the upper part of the back panel circuit layer;

[0007] The inner side of the upper waterproof film is printed with an ink layer; the backplane circuit layer includes a display area containing a plurality of display units and a frame around the display area;

[0008] The ink layer includes an ink grid having the same number and shape as the display units on the back panel circuit layer; the border color of the ink grid is consistent with the color of the joint formed when two electronic paper modules are spliced; and the border width of the ink grid is consistent with the width of the joint.

[0009] As a preferred solution of the present invention, the electronic paper module further includes: an electrode layer;

[0010] The electrode layer is attached to the backplane circuit layer.

[0011] As a preferred solution of the present invention, the electronic paper module further includes: an OCA adhesive layer;

[0012] The OCA adhesive layer is attached below the backplane circuit layer.

[0013] As a preferred solution of the present invention, the electronic paper module further comprises: a lower waterproof film;

[0014] The lower waterproof membrane is attached below the OCA adhesive layer.

[0015] As a preferred solution of the present invention, the electronic paper module further comprises: edge sealing glue;

[0016] Edge sealing glue is provided on the edge of the electronic paper film, the edge of the electrode layer, the edge of the back panel circuit layer and the edge of the OCA glue layer.

[0017] As a preferred solution of the present invention, the color of the border of the backplane circuit layer is black.

[0018] As a preferred solution of the present invention, the ink layer includes 9*7 ink grids.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] An embodiment of the present invention provides an electronic paper module. The electronic paper module includes: an upper waterproof film, an electronic paper film, and a backplane circuit layer. The electronic paper film is closely attached to the backplane circuit layer, and the upper waterproof film is attached to the upper part of the electronic paper film. On the inner side of the upper waterproof film, a layer of ink is printed, and the ink layer is precisely formed into an ink grid consistent with the shape of the display unit by a screen printing process. The border width of the ink grid is consistent with the seam width, and the color of the border width of the ink grid is consistent with the seam color. By setting the ink grid border color of the ink layer to be consistent with the color of the seam, the visual difference at the joint can be effectively hidden, making the seam less obvious visually, thereby eliminating the interference of the seam on the displayed content. This consistent color design enables the electronic paper module to present a more coherent image or pattern after splicing, especially when a large area of ​​solid color background or complex pattern is displayed, the transition at the joint is smoother, avoiding the problem of color difference or brightness inconsistency caused by the seam, thereby greatly improving the overall display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional schematic diagram of an electronic paper module provided by one embodiment of the present invention.

[0022] Figure 2It is a schematic structural diagram of an ink layer of an electronic paper module provided by one embodiment of the present invention.

[0023] Figure 3 It is a schematic diagram of the display effect of splicing two electronic modules in the prior art.

[0024] Figure 4 It is a schematic diagram of the display effect of splicing four electronic paper modules containing ink layers of 9*7 ink grids provided by an embodiment of the present invention.

[0025] Explanation of the accompanying reference numerals: 1. upper waterproof film; 2. electronic paper film; 3. back panel circuit layer; 4. ink layer; 5. electrode layer; 6. OCA adhesive layer; 7. lower waterproof film; 8. edge sealing adhesive; 9. display unit; 10. display area; 11. frame; 12. ink grid; 13. seam. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “top” and “bottom” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present invention provides an electronic paper module, comprising: an upper waterproof film 1, an electronic paper film 2 and a backplane circuit layer 3;

[0029] The upper waterproof film 1 is attached to the upper part of the electronic paper film 2; the electronic paper film 2 is attached to the upper part of the back panel circuit layer 3;

[0030] The inner side of the upper waterproof film 1 is printed with an ink layer 4; the back panel circuit layer 3 includes a display area 10 including a plurality of display units 9 and a frame 11 around the display area 10;

[0031] The ink layer 4 includes an ink grid 12 having the same number and shape as the display units 9 on the back panel circuit layer 3; the border color of the ink grid 12 is consistent with the color of the seam 13 formed when two electronic paper modules are spliced ​​together; and the border width of the ink grid 12 is consistent with the width of the seam 13.

[0032] It should be noted that if Figure 2 As shown, the seam 13 is the area formed by the two frames 11 when two electronic paper modules are spliced. This area is usually located at the connection of the modules, the gap between the two modules, and the docking status of the two electronic paper modules can be seen through this area. The seam 13 is not only a visual transition area, its processing and design have an important impact on the overall appearance and function of the electronic paper module, especially in the display effect after splicing, the neatness of the frame and the visual coherence.

[0033] It can be understood that the upper waterproof film 1 is tightly attached to the top of the electronic paper film 2 to protect the electronic paper film 2 from moisture intrusion and contamination from the external environment, further improving the reliability and stability of the electronic paper module in high humidity or harsh environments.

[0034] In particular, an ink layer 4 is printed on the inner side of the upper waterproof membrane 1, and the design of the ink layer 4 is closely integrated with the layout of the display units 9 of the back panel circuit layer 3 to optimize the visual effect of the joint 13. In the design of the ink layer 4, the ink layer 4 includes an ink grid 12 that is consistent with the number and shape of the display units 9 on the back panel circuit layer 3. The color of the border 11 of these ink grids 12 is carefully designed to be consistent with the color of the joint 13 formed when the two electronic paper modules are spliced, further reducing the color difference or discontinuity that may be visually generated at the joint. In addition, the width of the border 11 of the ink grid 12 is also consistent with the width of the joint 13, so that the design of the ink layer 4 can accurately cover the joint area, thereby achieving a higher degree of continuity in the splicing effect.

[0035] The electronic paper film 2 is directly attached to the top of the backplane circuit layer 3, and assumes the main function of displaying information, and completes the driving and control of the display unit 9 by cooperating with the backplane circuit layer 3. The backplane circuit layer 3 includes a display area 10 containing a plurality of display units 9 and a frame 11 on the periphery of the display area 10. The display area 10 is used to present specific display content, and the frame 11 provides support and visual connection for module splicing. Through the above structural design, the electronic paper module has not only significantly improved the display effect in the splicing seam 13 area, and the user can hardly perceive the existence of the splicing seam, but also has significantly improved the integrity of the displayed content, the visual connection of the frame, and the overall aesthetics of the module.

[0036] In a preferred embodiment, the electronic paper module further includes: an electrode layer 5;

[0037] The electrode layer 5 is attached to the backplane circuit layer 3 .

[0038] It is understandable that the main function of the electrode layer 5 is to provide electrical connection and signal transmission path for the electronic paper module to ensure the normal operation of the display unit 9. The electrode layer 5 is usually made of conductive material, such as transparent conductive film (TCO) or metal electrode, which can provide effective electrical connection between the display and touch functions.

[0039] In a preferred embodiment, the electronic paper module further includes: an OCA adhesive layer 6;

[0040] The OCA adhesive layer 6 is attached to the bottom of the backplane circuit layer 3 .

[0041] It is understandable that the OCA adhesive layer 6 (optically transparent adhesive layer) has excellent transparency and adhesion, and its main function is to firmly bond the backplane circuit layer 3 and other components together to ensure the stability and durability between the layers. The OCA adhesive layer 6 can not only provide strong bonding, but also effectively reduce the entry of air and moisture, prevent bubbles or water vapor from appearing inside the screen, and ensure the clarity and stability of the display effect.

[0042] In a preferred embodiment, the electronic paper module further comprises: a lower waterproof membrane 7;

[0043] The lower waterproof membrane 7 is attached below the OCA adhesive layer 6 .

[0044] It is understandable that the lower waterproof membrane 7 is usually made of polymer materials, has good waterproof performance and certain mechanical strength, which can not only isolate liquids, but also resist external impact and protect the underlying structure of the module. In addition, the addition of the lower waterproof membrane 7 can enhance the overall sealing of the module, and together with the upper waterproof membrane 1, it forms a complete protective barrier, so that the electronic paper module can still maintain good performance in a humid or complex environment. In the design, the lower waterproof membrane 7 needs to fit tightly with the OCA adhesive layer 6 and other components to avoid affecting the function of the module due to poor contact or insufficient sealing. Through reasonable material selection and precise process control, the lower waterproof membrane 7 not only effectively improves the protection ability of the module, but also further enhances the reliability and applicability of the module.

[0045] In a preferred embodiment, the electronic paper module further comprises: edge sealing glue 8;

[0046] Edge sealing glue 8 is provided on the edge of the electronic paper film 2 , the edge of the electrode layer 5 , the edge of the back panel circuit layer 3 and the edge of the OCA glue layer 6 .

[0047] It is understandable that the main function of the edge sealant 8 is to seal the edge of the module to prevent moisture, dust and other impurities in the external environment from penetrating into the module from the edge, thereby further improving the sealing and protection performance of the electronic paper module. The use of edge sealant can also enhance the impact resistance of the module edge and avoid damage caused by external forces.

[0048] In a preferred embodiment, the border 11 of the backplane circuit layer 3 is black.

[0049] It should be noted that the design of the border 11 of the backplane circuit layer 3 generally uses black, which can effectively improve the display effect and meet the multiple needs of production and design. For manufacturers, using black as the color of the border 11 of the backplane circuit layer 3 can not only improve production efficiency, but also ensure the consistency of product quality.

[0050] In a preferred embodiment, Figure 2 As shown, the ink layer 4 includes 9*7 ink grids 12 .

[0051] It is understandable that the number of ink grids 12 of the ink layer 4 corresponds to the number of display units 9 on the backplane circuit layer 3, and they are arranged in the same arrangement to ensure precise alignment between the two, thereby achieving the best display effect. Through reasonable process control, the 9×7 ink grid 12 arrangement can meet the needs of mass production while ensuring high-precision alignment, thereby improving production efficiency and product consistency. In addition, the display effect of splicing four electronic paper modules with ink layers containing 9*7 ink grids 12 is as follows Figure 4 As shown, the visual differences at the joints are effectively hidden, making the joints less visually obvious, thereby eliminating the interference of the joints on the displayed content and significantly improving the display effect.

[0052] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An electronic paper module, characterized in that: include: Apply waterproof film, electronic paper film and back panel circuit layer; The upper waterproof film is attached to the upper part of the electronic paper film; the electronic paper film is attached to the upper part of the back panel circuit layer; The inner side of the upper waterproof film is printed with an ink layer; the backplane circuit layer includes a display area containing a plurality of display units and a frame around the display area; The ink layer includes an ink grid having the same number and shape as the display units on the back panel circuit layer; the border color of the ink grid is consistent with the color of the joint formed when two electronic paper modules are spliced; and the border width of the ink grid is consistent with the width of the joint.

2. An electronic paper module as claimed in claim 1, characterized in that: Also includes: Electrode layer; The electrode layer is attached to the backplane circuit layer.

3. An electronic paper module as claimed in claim 2, characterized in that: Also includes: OCA adhesive layer; The OCA adhesive layer is attached below the backplane circuit layer.

4. The electronic paper module according to claim 3, characterized in that: Also includes: Lower waterproof membrane; The lower waterproof membrane is attached below the OCA adhesive layer.

5. The electronic paper module according to claim 4, characterized in that: Also includes: Edge banding glue; Edge sealing glue is provided on the edge of the electronic paper film, the edge of the electrode layer, the edge of the back panel circuit layer and the edge of the OCA glue layer.

6. The electronic paper module according to claim 5, characterized in that: The color of the frame of the backplane circuit layer is black.

7. The electronic paper module according to claim 6, characterized in that: The ink layer includes 9*7 ink grids.

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