Electronic paper display device
By designing a display driving module in the electronic paper display device, the display cylinder rolls along the curvature direction of the inner curved surface of the panel, which solves the problem of high driving voltage consumption of large-size curved display panels, achieving more efficient screen display and reducing costs. Effect.
Patent Information
- Application Number
- CN202421043699.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The driving voltage consumption of large-size curved display panels is large, and the screen display time is long, which has problems such as high energy consumption and uneco-friendly.
An electronic paper display device is designed, including an electronic paper display panel and a display driver module. The display driving module rolls along the curvature direction of the inner curved surface of the panel through the display cylinder, and uses the display driving unit to fit with the inner curved surface of the panel to form an electric field to drive the picture display.
The driving voltage consumption is reduced, the driving cost is reduced, maintenance is facilitated, and a more efficient screen display is achieved.
Smart Images
Figure CN222379972U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of outdoor information display, and in particular to an electronic paper display device. Background Art
[0002] Electronic paper display devices are mainly suitable for ultra-large curved outdoor billboards due to their fashionable appearance and strong installation adaptability, especially for street corners, building corners, etc. At present, the electronic paper display devices on the market include non-electrical and electrical display billboards. The non-electrical display billboards are realized by laminating color printed films. This non-electrical display method is extremely labor-intensive, and the advertisements are single, and it is impossible to accept multiple advertising businesses at the same time. Although electrical display billboards can solve the above problems, since electrical display billboards use liquid crystal displays or LED lights for display, this electrical display method will consume more energy as the size of the billboard increases. In the current situation where ESG (Environmental Social Governance) is promoted nationwide, this display method is extremely environmentally unfriendly. Utility Model Content
[0003] The embodiment of the present application provides an electronic paper display device, which solves the problem that the current large-sized curved display panel has a large driving voltage consumption and a long time required to drive and display the entire screen of the curved display panel.
[0004] In order to solve the above technical problems, this application is implemented as follows:
[0005] In a first aspect, an electronic paper display device is provided, which includes an electronic paper display panel and a display driving module. The electronic paper display panel has a panel body. The panel body has a display outer curved surface and a driving inner curved surface. The driving inner curved surface is located on the inner side of the panel body, and the display outer curved surface is located on the outer side of the panel body. The display driving module has a driving component and a display component. The driving component has a driving member and a traction rod. The driving member drives one end of the traction rod. The display component has a rotating shaft and a display cylinder. The rotating shaft is axially arranged in the display cylinder, and the other end of the traction rod is connected to the rotating shaft of the display component, and the circumferential surface of the display cylinder has at least one display driving unit. The display driving unit of the display cylinder is attached to the driving inner curved surface of the panel body, and the display cylinder rolls along the arc direction of the driving inner curved surface, and the image is presented in the area where the display driving unit is attached and rolled.
[0006] In one embodiment, the electronic paper display panel includes an electronic paper display module and a first electrode layer, which are arranged in a panel body, the first electrode layer is close to the display outer curved surface, the electronic paper display module is close to the driving inner curved surface, the display driving unit includes a second electrode layer, wherein the display driving unit is attached to the driving inner curved surface, and the second electrode layer forms a picture in the area of the electronic paper display module corresponding to the first electrode layer.
[0007] In one embodiment, there is one display driving unit, and the display driving unit is disposed on the circumferential surface of the display column.
[0008] In one embodiment, there are multiple display driving units, and the multiple display driving units are arranged on the circumferential surface of the display column.
[0009] In one embodiment, the other end of the traction rod rotates with the end of the traction rod connected to the driving member as the rotation center, and the movement path of the display column pulled by the other end of the traction rod is the same as the curvature of the driving inner curved surface.
[0010] In one embodiment, the panel body of the electronic paper display panel is a curved body or a toroidal body, and the display driving module is located inside the panel body.
[0011] In one embodiment, the panel body is a curved body, and the electronic paper display panel further includes a cover plate, and two side edges of the panel body are disposed on the cover plate.
[0012] In one embodiment, the display driving module further includes a signal component electrically connected to the display component.
[0013] In one embodiment, the display assembly has an internal driving member, which is linked to the rotating shaft. The circumferential surface of the rotating shaft has an external gear, and the inner side of the display column has an internal gear. The external gear of the rotating shaft is engaged with the internal gear of the display column, and the rotating shaft drives the display column to rotate.
[0014] In one embodiment, the driving member has a driving shaft, which is coaxially arranged with the driving inner curved surface. One end of the driving shaft is connected to one end of the traction rod. The driving member drives the driving shaft to rotate and drives the other end of the traction rod to rotate with one end of the traction rod as the rotation center.
[0015] In the embodiment of the present application, the display driving unit on the circumferential surface of the display column is adhered to the driving inner curved surface of the panel body, and then the driving member drives the traction rod to drive the display column of the display assembly to roll along the curvature direction of the driving inner curved surface. In this way, the panel body can present an image in the area where the display driving unit has adhered and rolled, thereby realizing the image display of the electronic paper display panel. This driving and displaying method can not only reduce the driving energy consumption, but also reduce the driving cost and facilitate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0017] Figure 1 is a schematic diagram of an electronic paper display device according to a first embodiment of the present application;
[0018] Figure 2 is another schematic diagram of the electronic paper display device according to the first embodiment of the present application;
[0019] Figure 3 is a schematic diagram of a display component and a traction rod of the electronic paper display device of the present application;
[0020] Figure 4 It is a front perspective schematic diagram of an electronic paper display device according to a second embodiment of the present application.
[0021] The following is a description of the electronic paper display device in conjunction with the accompanying drawings: 1: electronic paper display device; 2: electronic paper display panel; 21: panel body; 211: display outer curved surface; 212: drive inner curved surface; 22: cover plate; 23: electronic paper display module; 24: first electrode layer; 3: display drive module; 31: drive assembly; 311: drive member; 3111: drive shaft; 312: traction rod; 32: display assembly; 321: rotating shaft; 3211: outer gear; 322: display column; 3221: display drive unit; 32211: second electrode layer; 3222: inner gear; 323: inner drive member; 33: signal assembly. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0023] In the description of the present application, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0024] In addition, although the terms “first”, “second”, etc. are used herein to describe different elements, such terms are merely used to distinguish elements or operations described with the same technical terms.
[0025] See also Figure 1 and Figure 2 , Figure 1 is a schematic diagram of an electronic paper display device according to a first embodiment of the present application and Figure 2 is another schematic diagram; as shown in the figure, the electronic paper display device 1 of this embodiment is mainly suitable for large-sized curved panels for electrical display, such as outdoor electronic billboards, etc. Large-sized curved panels can be used in locations such as street corners and building corners. The electronic paper display device 1 of this embodiment includes an electronic paper display panel 2 and a display driver module 3. The electronic paper display panel 2 has a panel body 21. The panel body 21 has a display outer curved surface 211 and a drive inner curved surface 212. The drive inner curved surface 212 is located on the inner side of the panel body 21, and the display outer curved surface 211 is located on the outer side of the panel body 21. In this embodiment, the panel body 21 of the electronic paper display panel 2 is a curved body, the drive inner curved surface 212 is the inner curved surface of the curved body, and the display outer curved surface 211 is the outer curved surface of the curved body. The electronic paper display panel 2 further includes a cover plate 22, and the two sides of the panel body 21 are arranged on the cover plate 22, so that it is convenient to install and use the panel body 21, and the two end openings of the panel body 21 can be sealed. The display driving module 3 is located inside the panel body 21. The display driving module 3 has a driving component 31 and a display component 32. The driving component 31 has a driving member 311 and a traction rod 312. The driving member 311 drives one end of the traction rod 312.
[0026] Please also read Figure 3, which is a schematic diagram of a display component and a traction rod of an electronic paper display device of the first embodiment of the present application; as shown in the figure, the display component 32 has a rotating shaft 321 and a display column 322. The rotating shaft 321 is axially arranged in the display column 322. The other end of the traction rod 312 is connected to the rotating shaft 321 of the display component 32. The circumferential surface of the display column 322 has at least one display driving unit 3221. The display driving unit 3221 of the display column 322 is attached to the driving inner curved surface 212 of the panel body 21, and the display column 322 rolls along the arc direction of the driving inner curved surface 212, and the display driving unit 3221 rolls along the rolling area to present the picture. In this embodiment, there are multiple display driving units 3221, and the multiple display driving units 3221 are arranged on the circumferential surface of the display column 322, so that the display driving unit 3221 can sequentially present different pictures in the area where the display driving unit 3221 rolls. In some other embodiments, there may be one display driving unit 3221, which is arranged on the circumferential surface of the display column 322, so that the display driving unit 3221 can fit the scrolled area to present a picture or multiple pictures displayed side by side.
[0027] See also Figure 2 and Figure 3 As shown, in this embodiment, the electronic paper display panel 2 includes an electronic paper display module 23 and a first electrode layer 24. The electronic paper display module 23 and the first electrode layer 24 are arranged in the panel body 21, and the first electrode layer 24 is close to the display outer curved surface 211. The electronic paper display module 23 is close to the driving inner curved surface 212. The display driving unit 3221 includes a second electrode layer 32211. The display driving unit 3221 is attached to the driving inner curved surface 212, and the electronic paper display module 23 is located between the second electrode layer 32211 of the display driving unit 3221 and the first electrode layer 24. At the same time, an electric field is formed between the second electrode layer 32211 of the display driving unit 3221 and the first electrode layer 24, and the electric field causes the second electrode layer 32211 to form a picture in the area of the electronic paper display module 23 corresponding to the first electrode layer 24. In this way, when the display column 322 rolls along the curvature direction of the driving inner curved surface 212, the second electrode layer 32211 of the display driving unit 3221 on the circumferential surface of the display column 322 sequentially adheres to different areas of the first electrode layer 24 of the panel body 21 (the rolling area of the display column 322) and generates an electric field, so that the panel body 21 presents an image in the area that has been adhered and rolled by the display driving unit 3221.
[0028] As described above, the electronic paper display device 1 of this embodiment is configured to provide a display driving unit 3221 on the circumferential surface of the display column 322, and the display driving unit 3221 on the circumferential surface of the display column 322 is adhered to the driving inner curved surface 212 of the panel body 21, and an electric field is generated in the adhesion area between the second electrode layer 32211 of the display driving unit 3221 and the first electrode layer 24 of the panel body 21, and the electric field drives the electronic paper display module 23 in the contact area between the display driving unit 3221 and the panel body 21 to present a picture. Then, one end of the traction rod 312 is driven by the driving member 311, and the other end of the traction rod 312 drives the display column 322 to roll along the curvature direction of the driving inner curved surface 212, so that the display driving unit 3221 on the circumferential surface of the display column 322 contacts the surface of the driving inner curved surface 212 of the panel body 21 (i.e., the rolling area of the display column 322) in turn, so that the panel body 21 presents the picture in the area where the display driving unit 3221 has rolled, thereby realizing the picture display of the electronic paper display panel. This driving and displaying method can effectively reduce the driving voltage, reduce the driving cost, and facilitate maintenance.
[0029] In this embodiment, the other end of the traction rod 312 rotates with the end of the traction rod 312 connected to the driving member 311 as the rotation center, and the movement path of the traction display column 322 of the other end of the traction rod 312 is the same as the curvature of the driving inner curved surface 212, so that the display column 322 can be ensured to roll along the curvature direction of the driving inner curved surface 212. In addition, the driving member 311 has a driving shaft 3111. The driving shaft 3111 is coaxially arranged with the driving inner curved surface 212. One end of the driving shaft 3111 is connected to one end of the traction rod 312, and the driving member 311 drives the driving shaft 3111 to rotate, thereby driving the other end of the traction rod 312 to rotate. In the process where the other end of the traction rod 312 drives the display cylinder 322 to roll along the curvature direction of the driving inner curved surface 212, after one of the display driving units 3221 of the display cylinder 322 drives the corresponding contact area of the panel body 21 to present a stable image, the other end of the traction rod 312 continues to drive the display cylinder 322 to roll along the curvature direction of the driving inner curved surface 212, so that the next display driving unit 3221 of the display cylinder 322 fits with the driving inner curved surface 212 of the panel body 21. After the display cylinder 322 rolls from one side of the curvature direction of the driving inner curved surface 212 to the other side, the traction rod 312 stops driving the display cylinder 322 to roll.
[0030] See also Figure 3As shown, in this embodiment, the display assembly 32 has an inner driving member 323. The inner driving member 323 is linked to the rotating shaft 321. The circumferential surface of the rotating shaft 321 has an outer gear 3211, and the inner side of the display column 322 has an inner gear 3222. The outer gear 3211 of the rotating shaft 321 is meshed with the inner gear 3222 of the display column 322. The rotating shaft 321 drives the display column 322 to rotate, so that the display column 322 rotates by itself, so that the display driving unit 3221 on the circumferential surface of the display column 322 is sequentially attached to the driving inner curved surface 212. That is, when the other end of the traction rod 312 drives the display column 322 to roll along the arc direction of the driving inner curved surface 212, the rotating shaft 321 drives the display column 322 to rotate by itself, so that the display driving unit 3221 on the circumferential surface of the display column 322 will sequentially attach to the surface of different areas of the driving inner curved surface 212.
[0031] Re-read and read Figure 2 and Figure 3 As shown, in this embodiment, the display driving module 3 further includes a signal component 33, and the signal component 33 is electrically connected to the display component 32. The signal component 33 is disposed on the driving shaft 3111, and the signal component 33 is electrically connected to the display driving unit 3221 on the circumferential surface of the display column 322 through a signal line, and the signal line can be built into the traction rod 312. The signal component 33 provides power and display image signals to the display driving unit 3221, so that the panel body 21 presents the required image in the area that has been rolled by the display driving unit 3221.
[0032] See also Figure 4 , which is a front perspective schematic diagram of the electronic paper display device of the second embodiment of the present application; as shown in the figure, the difference between this embodiment and the first embodiment lies in the structure of the electronic paper display panel 2. The panel body 21 of the electronic paper display panel 2 of this embodiment is a torus. The electronic paper display device 1 of this embodiment is a cylindrical circular panel, and the electronic paper display device 1 can present a picture at 360 degrees. The driving component 31 of the display driving module 3 of this embodiment is located at the center of the electronic paper display panel 2, and the driving component 31 drives the display component 32 to surround the inner surface of the electronic paper display panel 2. Compared with the electronic paper display device 1 of the first embodiment, this embodiment has a larger display area, a wider visible angle, and a wider range of application scenarios.
[0033] In summary, the present application provides an electronic paper display device, in which the display driving unit on the circumferential surface of the display column is adhered to the driving inner curved surface of the panel body, and then the driving member drives the traction rod to drive the display column of the display assembly to roll along the curvature direction of the driving inner curved surface. In this way, the panel body can present an image in the area where the display driving unit has adhered and rolled, thereby realizing the image display of the electronic paper display panel. This driving and displaying method can not only reduce the driving energy consumption, but also reduce the driving cost and facilitate maintenance.
[0034] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.
[0035] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.
Claims
1. An electronic paper display device, characterized in that: include: An electronic paper display panel comprises a panel body, wherein the panel body comprises a display outer curved surface and a drive inner curved surface, wherein the drive inner curved surface is located inside the panel body, and the display outer curved surface is located outside the panel body; The display driving module comprises a driving component and a display component, wherein the driving component comprises a driving member and a traction rod, wherein the driving member drives one end of the traction rod, wherein the display component comprises a rotating shaft and a display column, wherein the rotating shaft axially passes through the display column, and the other end of the traction rod is connected to the rotating shaft of the display component, wherein the circumferential surface of the display column comprises at least one display driving unit, wherein the display driving unit of the display column is attached to the driving inner curved surface of the panel body, and the display column rolls along the curvature direction of the driving inner curved surface, and an image is presented in the area where the display driving unit is attached and rolled.
2. The electronic paper display device according to claim 1, characterized in that: The electronic paper display panel includes an electronic paper display module and a first electrode layer, the electronic paper display module and the first electrode layer are arranged in the panel body, the first electrode layer is close to the display outer curved surface, the electronic paper display module is close to the driving inner curved surface, the display driving unit includes a second electrode layer, wherein the display driving unit is attached to the driving inner curved surface, and the second electrode layer corresponds to the area of the electronic paper display module between the first electrode layers to form the screen.
3. The electronic paper display device according to claim 1, characterized in that: There is one display driving unit, and the display driving unit is arranged on the circumferential surface of the display column.
4. The electronic paper display device according to claim 1, characterized in that: There are a plurality of display driving units, and the plurality of display driving units are arranged on the circumferential surface of the display column.
5. The electronic paper display device according to claim 1, characterized in that: The other end of the traction rod rotates with the end of the traction rod connected to the driving member as the rotation center, and the movement path of the other end of the traction rod pulling the display column is the same as the curvature of the driving inner curved surface.
6. The electronic paper display device according to claim 1, characterized in that: The panel body of the electronic paper display panel is a curved body or a toroidal body, and the display driving module is located inside the panel body.
7. The electronic paper display device according to claim 6, characterized in that: The panel body is a curved body, and the electronic paper display panel further comprises a cover plate, and two side edges of the panel body are arranged on the cover plate.
8. The electronic paper display device according to claim 1, characterized in that: The display driving module further includes a signal component, and the signal component is electrically connected to the display component.
9. The electronic paper display device according to claim 1, characterized in that: The display component has an internal driving member, which is linked to the rotating shaft. The circumferential surface of the rotating shaft has an external gear, and the inner side of the display column has an internal gear. The external gear of the rotating shaft is meshed with the internal gear of the display column, and the rotating shaft drives the display column to rotate.
10. The electronic paper display device according to claim 1, characterized in that: The driving member has a driving shaft, which is coaxially arranged with the driving inner curved surface. One end of the driving shaft is connected to one end of the traction rod. The driving member drives the driving shaft to rotate to drive the other end of the traction rod to rotate.