FPC (Flexible Printed Circuit) back plate for improving abutted seam display effect and electronic paper module

Abstract

The invention discloses an FPC (Flexible Printed Circuit) back plate for improving a splicing seam display effect and an electronic paper module. The FPC back plate comprises a display area and a frame on the periphery of the display area, the display area comprises a plurality of pixel display units arranged in the display area and pixel display electrode wires connected with the pixel display units in a one-to-one correspondence mode. Wherein the distance between two adjacent pixel display units is equal to the width of an abutted seam; the splicing seam is the distance between one frame and the other frame when the two electronic paper modules are spliced; the pixel display electrode wire is used for controlling the display state of the pixel display unit; the display area further comprises a background display unit and a background color electrode wire connected with the background display unit. The background color electrode wire is used for controlling the background display unit to display a background color consistent with the color of the frame; the invention further discloses an electronic paper module. By implementing the method, the problem of interference of the splicing seams on the display effect can be solved, and the overall display effect of the spliced screen is optimized.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an FPC backplane and an electronic paper module for improving a splicing display effect. Background Art

[0002] Electronic paper display technology is a new application mode of electronic paper display. Its module structure is simple and the production process is also simple. At the same time, the backplane circuit design can be carried out according to the client's arbitrary ID pattern design. Each square is connected to a single metal wire and collected at the FPC lead end to connect to the driver board. Given a specific driving voltage signal, each independent display unit can display different colors. Each independent display unit does not require a TFT device switch, so the design is simple. The printed circuit process can be used to design and produce the backplane circuit, and combined with Eink's latest generation of electronic paper film materials to achieve multi-color color changes, thereby attracting consumers and end customers and can be widely used in the consumer goods field.

[0003] With the continuous development of electronic paper technology, 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. However, in the splicing process of these large screens, there is usually a "seam" problem, that is, a visual gap or inconsistency between adjacent modules. The existence of these seams has a significant negative impact on the overall display effect. The seams will cause discontinuity in the displayed content, especially when the image or video content is displayed, the gap at the joint will interrupt the continuity of the image and affect the viewing experience. The seams are particularly obvious when displaying a large area of ​​solid color background or complex patterns. The transition of colors and patterns becomes uneven, which brings a bad visual effect to the user. Secondly, there may be a phenomenon of inconsistent brightness or color between the display unit and the surrounding area at the seam, which may make the details of the displayed content blurred or distorted at the joint, increasing visual interference. Summary of the invention

[0004] The embodiment of the present invention provides an FPC back plate and an electronic paper module for improving the splicing display effect. By implementing the present invention, the splicing display effect can be improved.

[0005] An embodiment of the present invention provides an FPC backplane for improving the display effect of a patchwork seam, comprising: a display area and a frame around the display area;

[0006] The display area includes a plurality of pixel display units arranged in the display area and pixel display electrode lines connected to the pixel display units in a one-to-one correspondence; wherein the distance between two adjacent pixel display units is consistent with the width of the joint formed when two electronic paper modules are spliced; the pixel display electrode lines are used to control the display state of the pixel display units;

[0007] The display area also includes a background display unit and a background color electrode line connected to the background display unit; the background color electrode line is used to control the background display unit to display a background color that is consistent with the frame color.

[0008] As a preferred solution of the present invention, an FPC backplane for improving the display effect of a patchwork seam further includes: an FPC lead terminal;

[0009] The FPC lead end is connected to each pixel display electrode line and the background color electrode line, and is connected to an external driving board;

[0010] The FPC lead end is used to receive a pixel display driving signal sent by an external driving board, and send the pixel display driving signal to the corresponding pixel display unit through the pixel display electrode line, so that the corresponding pixel display unit displays the corresponding color according to the color information carried in the display driving signal;

[0011] The FPC lead end is also used to receive a background display driving signal sent by an external driving board, and send the background display driving signal to the background display unit through the background color electrode line, so that the background display unit displays a color consistent with the frame color.

[0012] As a preferred solution of the present invention, the shape of the pixel display unit is a square with rounded corners.

[0013] As a preferred solution of the present invention, the border color is white or black.

[0014] As a preferred solution of the present invention, the pixel display units are arranged in the display area in a 9*7 square grid array.

[0015] In addition, another aspect of the present invention provides an electronic paper module, including an FPC back plate for improving the seam display effect and an electronic paper film; the electronic paper film is arranged above the FPC back plate.

[0016] As a preferred solution of the present invention, an electronic paper module further includes: an upper waterproof film and a lower waterproof film; the upper waterproof film is attached to the upper part of the electronic paper film; the lower waterproof film is attached to the lower part of the FPC back plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The embodiment of the present invention provides an FPC backplane and an electronic paper module for improving the display effect of the seam. The FPC backplane includes: a display area and a frame around the display area; the display area includes a plurality of pixel display units arranged in the display area and pixel display electrode lines connected to the pixel display units in a one-to-one correspondence; wherein the distance between two adjacent pixel display units is consistent with the width of the seam formed when two electronic paper modules are spliced; the pixel display electrode lines are used to control the display state of the pixel display units; the display area also includes a background display unit and a background color electrode line connected to the background display unit; the background color electrode line is used to control the background display unit to display a background color consistent with the color of the frame. By adjusting the distance between adjacent pixel display units to make them equal in width to the seam, it is ensured that when splicing, the seam area and the adjacent modules maintain a consistent width background; by setting the color of the background display unit to the color consistent with the frame, the background color and the frame are visually connected as one, further weakening the presence of the seam. At the same time, the background display unit and each pixel display unit are controlled by separate electrode lines, ensuring that the background display unit and each pixel display unit can be operated independently and perform their respective functions. The present invention can solve the problem of interference of the splicing seam on the display effect, thereby optimizing the overall display effect of the splicing screen in a wider range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The diagram is a schematic structural diagram of an FPC backplane for improving the seam display effect provided by an embodiment of the present invention.

[0020] Figure 2 The present invention is a schematic diagram of the display effect of splicing two electronic paper modules including an FPC backplane with improved splicing display effect provided by an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the display effect of splicing two electronic modules in the prior art provided by an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the display effect of a pixel display unit provided by an embodiment of the present invention, in which the shape of the pixel display unit is a square with rounded corners.

[0023] Figure 5 It is a schematic diagram of the display effect of a square pixel display unit with rounded corners showing a K pattern provided by an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the display effect of a display unit displaying a K pattern in the prior art provided by an embodiment of the present invention.

[0025] Figure 7It is a schematic diagram of the display effect of splicing an electronic paper module with an FPC backplane containing a square pixel display unit with four rounded corners provided by an embodiment of the present invention.

[0026] Figure 8 It is a structural schematic diagram of an electronic paper module provided by an embodiment of the present invention.

[0027] Explanation of the accompanying drawings: 1. display area; 2. frame; 3. pixel display unit; 4. pixel display electrode line; 5. background display unit; 6. background color electrode line; 7. FPC lead end; 8. seam; 9. upper waterproof film; 10. electronic paper film; 11. FPC back panel; 12. lower waterproof film. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] like Figure 1 , Figure 2 as well as Figure 8 As shown, an embodiment of the present invention provides an FPC backplane 11 for improving the seam display effect, comprising: a display area 1 and a frame 2 on the periphery of the display area 1;

[0031] The display area 1 includes a plurality of pixel display units 3 arranged in the display area 1 and pixel display electrode lines 4 connected to the pixel display units 3 in a one-to-one correspondence; wherein the distance between two adjacent pixel display units 3 is consistent with the width of the joint 8 formed by the splicing of two electronic paper modules; the pixel display electrode lines 4 are used to control the display state of the pixel display units 3;

[0032] The display area 1 further includes a background display unit 5 and a background color electrode line 6 connected to the background display unit 5 ; the background color electrode line 6 is used to control the background display unit 5 to display a background color consistent with the color of the frame 2 .

[0033] It should be noted that the background display unit 5 is the area formed by the display area 1 except the pixel display unit 3; Figure 2 As shown, the seam 8 is the area formed by two frames when two electronic paper modules are spliced ​​together.

[0034] It is understandable that designing the distance between two adjacent pixel display units 3 to be equal to the width of the seam 8 helps to maintain the visual consistency of the splicing area when multiple electronic paper modules are spliced ​​together. When multiple electronic paper modules are spliced ​​into a large screen, the display content at the splicing point often appears discontinuous or uncoordinated; especially when the display content spans the seam 8, color inconsistency, brightness difference or visual fragmentation may occur. By ensuring that the distance between adjacent pixel display units 3 is equal to the width of the seam 8, the shape, position and display effect of each pixel display unit 3 can be made more consistent, reducing the visual interference caused by the difference in seam spacing.

[0035] In addition, the color of the background display unit 5 is controlled by the background color electrode line 6 so that the background color is consistent with the color of the frame, so that when the electronic paper module is spliced, an obvious color fault can be avoided at the splicing. The seam 8 is often the most visually sensitive part of the spliced ​​screen. If the background color at the seam 8 is inconsistent with the surrounding area, it is easy to cause a sense of visual fragmentation or an unnatural transition. By ensuring that the color of the background display unit 5 is consistent with the color of the frame, the transition at the splicing can be made smoother, avoiding a visual abruptness and improving the consistency and coherence of the display effect.

[0036] It is understandable that the display effect of the electronic paper module containing the FPC backplane is as follows: Figure 2 As shown, compared to Figure 3 The original design of the two electronic modules for splicing the display effect, the design of the present invention optimizes the overall display effect of the spliced ​​screen.

[0037] In a preferred embodiment, an FPC backplane 11 for improving the stitching display effect further includes: an FPC lead terminal 7;

[0038] The FPC lead terminal 7 is connected to each pixel display electrode line 4 and the background color electrode line 6, and is connected to an external driving board;

[0039] The FPC lead terminal 7 is used to receive a pixel display driving signal sent by an external driving board, and send the pixel display driving signal to the corresponding pixel display unit 3 through the pixel display electrode line 4, so that the corresponding pixel display unit 3 displays the corresponding color according to the color information carried in the display driving signal;

[0040] The FPC lead terminal 7 is also used to receive a background display driving signal sent by an external driving board, and send the background display driving signal to the background display unit 5 through the background color electrode line 6, so that the background display unit 5 displays a color consistent with the color of the frame 2.

[0041] It is understandable that by transmitting the driving signal to the background display unit 5 through the background color electrode line 6, the background color can be completely separated from the color of the pixel display unit 3 and can be changed independently. Traditional display devices often closely combine the control of the pixel display unit 3 and the background color, which may cause color confusion and inconsistency between the background color and the pixel display content, affecting the display effect. However, the present design independently controls the background color through the background display unit 5, and can accurately adjust the background color, ensuring that the color of the displayed content is accurate and not disturbed by the background color, thereby improving the overall visual effect.

[0042] In addition, the background color can be independently controlled by the background color electrode, reducing the dependence on the pixel display electrode line 4, so that the control of the pixel display unit 3 is more focused on the display content itself, and the performance and response speed of the pixel display unit 3 will not be affected by the change of the background color. This design can effectively improve the working stability and response speed of the pixel display unit 3, while simplifying the circuit design and manufacturing process, and improving the manufacturability and maintainability of the product.

[0043] like Figure 4 As shown, in a preferred embodiment, the shape of the pixel display unit 3 is a square with rounded corners.

[0044] It is understandable that if Figure 5 As shown in the figure, designing each pixel display unit 3 into a square with rounded corners helps to improve the common "jaggies" phenomenon when displaying fonts. Specifically, based on the original rectangular display unit, a square pixel display unit with rounded corners is designed, so that the edge of each pixel display unit 3 becomes smoother, thereby avoiding the visual discontinuity caused by hard angles and lines and reducing the jagged feeling of the font. Figure 6 In the original design, the "K" pattern displayed showed obvious jagged edges. After adopting the arc design, the pattern display is more rounded and soft, and the edge transition is smoother, which reduces the visual abruptness and improves the delicacy of the display.

[0045] It is understandable that the display effect of the electronic paper module with FPC backplane containing square pixel display units with four corner arcs is as follows: Figure 7 As shown, it can effectively improve the common "jaggies" phenomenon when displaying fonts and significantly improve the display effect.

[0046] In a preferred embodiment, improving the "jaggies" phenomenon of displayed fonts is not limited to a square design with four-cornered arcs, and other shapes with arcs can also achieve similar effects. For example, designing the pixel display unit 3 into a circular, elliptical or other curved contour shape can also effectively eliminate the jagged edges generated when the font is displayed. The common feature of these designs is that the edges are softer, so that the picture can be smoother and more natural when displaying text and patterns, avoiding the visual discomfort caused by the sharp edges of the pixel display unit 3. Through these optimized designs, especially in the application of spliced ​​screens, the display effect can be significantly improved.

[0047] In a preferred embodiment, the frame 2 is white or black.

[0048] It should be noted that the design of the frame 2 of the FPC backplane 11 generally uses black and white, which can effectively improve the display effect and meet the multiple needs of production and design. For manufacturers, using black and white as the color of the frame 2 of the FPC backplane 11 can not only improve production efficiency, but also ensure the consistency of product quality.

[0049] Optionally, the pixel display units 3 are arranged in the display area 1 in a 9*7 square grid array.

[0050] It can be understood that the 9×7 grid array arrangement has good structural stability. The pixel units evenly arranged in the display area 1 can ensure the balance of the entire display area, avoiding problems such as inconsistent display or uneven brightness caused by uneven arrangement. This can make the brightness and color distribution of the display area more uniform and improve the overall consistency of the display effect. In addition, the design of the grid array makes the process easier to control and optimize during the production of the electronic paper module. The regular arrangement of the pixel display unit 3 can simplify the calibration and debugging during the production process, reduce the errors and deviations that may occur during the production process, and improve the production efficiency and product consistency. This is of great significance for large-scale production and improving production stability.

[0051] In addition, if Figure 8 As shown, the present invention also provides an electronic paper module, comprising the above-mentioned FPC backplane 11 for improving the splicing display effect and an electronic paper film 10; the electronic paper film is arranged above the FPC backplane 11. The electronic paper module has all the beneficial effects of the above-mentioned FPC backplane 11 for improving the splicing display effect, which will not be described one by one here.

[0052] In a preferred embodiment, an electronic paper module further includes: an upper waterproof film 9 and a lower waterproof film 12 ; the upper waterproof film 9 is attached to the upper part of the electronic paper film 10 ; the lower waterproof film 12 is attached to the lower part of the FPC back plate 11 .

[0053] It is understandable that the addition of the upper waterproof membrane 9 and the lower waterproof membrane 12 not only improves the waterproof performance of the electronic paper module, enhances its ability to resist moisture and environmental influences, but also improves the physical durability of the module and extends its service life.

[0054] 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 FPC backplane for improving the display effect of stitching, characterized in that: include: A display area and a border around the display area; The display area includes a plurality of pixel display units arranged in the display area and pixel display electrode lines connected to the pixel display units in a one-to-one correspondence; wherein the distance between two adjacent pixel display units is consistent with the width of the joint formed when two electronic paper modules are spliced; the pixel display electrode lines are used to control the display state of the pixel display units; The display area also includes a background display unit and a background color electrode line connected to the background display unit; the background color electrode line is used to control the background display unit to display a background color that is consistent with the frame color.

2. The FPC backplane for improving the display effect of the patchwork seam according to claim 1, characterized in that: Also includes: FPC lead terminal; The FPC lead end is connected to each pixel display electrode line and the background color electrode line, and is connected to an external driving board; The FPC lead end is used to receive a pixel display driving signal sent by an external driving board, and send the pixel display driving signal to the corresponding pixel display unit through the pixel display electrode line, so that the corresponding pixel display unit displays the corresponding color according to the color information carried in the display driving signal; The FPC lead end is also used to receive a background display driving signal sent by an external driving board, and send the background display driving signal to the background display unit through the background color electrode line, so that the background display unit displays a color consistent with the frame color.

3. The FPC backplane for improving the display effect of the patchwork seam according to claim 2, characterized in that: The shape of the pixel display unit is a square with rounded corners.

4. The FPC backplane for improving the display effect of the patchwork seam according to claim 3, characterized in that: The border color is white or black.

5. The FPC backplane for improving the display effect of the patchwork as claimed in claim 4, characterized in that: The pixel display units are arranged in the display area in a 9*7 square grid array.

6. An electronic paper module, characterized in that: It comprises an FPC back plate for improving the seam display effect and an electronic paper film as described in any one of claims 1 to 5; the electronic paper film is arranged above the FPC back plate.

7. The electronic paper module according to claim 6, characterized in that: Also includes: An upper waterproof film and a lower waterproof film; the upper waterproof film is attached to the upper part of the electronic paper film; the lower waterproof film is attached to the lower part of the FPC back plate.

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