Electronic paper display module

Abstract

The invention relates to the technical field of electronic paper, and particularly discloses an electronic paper display module which has a length direction and a width direction, and comprises a first waterproof layer which comprises a main body part, two first bending parts and two first extension parts, the two first bending parts are arranged on the two sides of the main body part in the length direction, and the two first extension parts are arranged in the width direction; the two first extending parts are connected with the two first bending parts in a one-to-one correspondence manner; the electronic paper film is arranged on the surface of the main body part; the backboard layer is arranged on the surface, away from the main body part, of the electronic paper film, and the backboard layer is electrically connected with the electronic paper film; the second waterproof layer is arranged on the surface, deviating from the electronic paper film, of the backboard layer; wherein the two first bending parts correspondingly cover the two sides of the electronic paper film, the backboard layer and the second waterproof layer in the length direction, the two first extending parts are arranged on the surface, away from the backboard layer, of the second waterproof layer, and the space between the first extending parts and the second waterproof layer is filled with a first edge sealing glue layer. According to the electronic paper display module, the size of the frame can be reduced, so that the screen-to-body ratio is increased.

Description

Technical Field

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

[0002] The electronic paper module is a new branch of the application of segment displays. It can display the same color on the whole surface, has the characteristics of fast refresh and rich color display, and has important application potential in color-changing tiles, digital electronic product casings, automobiles, clothing, etc. The current structure of the electronic paper module is mainly stacked by four layers, namely an upper waterproof film layer, an electronic paper layer, a backplane circuit layer, and a lower waterproof film layer. Since a relatively large width of the sealing edge glue needs to be reserved, the four-side frame is relatively wide, usually with a width greater than 2.5 mm, resulting in a low screen-to-body ratio. When the electronic paper module is applied to a tiled screen scenario, the relatively wide frame causes a large seam between the tiles, affecting the appearance and display effect. Summary of the Invention

[0003] The object of the present invention is to provide an electronic paper display module that can reduce the size of the frame and thus improve the screen-to-body ratio.

[0004] To achieve the above object, the present invention provides an electronic paper display module having a length direction and a width direction, comprising:

[0005] A first waterproof layer, including a main body portion, two first bending portions, and two first extending portions. The two first bending portions are arranged on both sides of the main body portion along the length direction, and the two first extending portions are correspondingly connected to the two first bending portions;

[0006] An electronic paper film, disposed on the surface of the main body portion;

[0007] A backplane layer, disposed on the surface of the electronic paper film facing away from the main body portion, and the backplane layer is electrically connected to the electronic paper film; and

[0008] A second waterproof layer, disposed on the surface of the backplane layer facing away from the electronic paper film;

[0009] Wherein, the two first bending portions correspondingly cover both sides of the electronic paper film, the backplane layer, and the second waterproof layer along the length direction, the two first extending portions are disposed on the surface of the second waterproof layer facing away from the backplane layer, and a first edge-sealing glue layer is filled between the first extending portion and the second waterproof layer.

[0010] In some embodiments, the first waterproof layer includes two second bending portions and two second extending portions. The two second bending portions are arranged on both sides of the main body portion along the width direction, and the two second extending portions are correspondingly connected to the two second bending portions.

[0011] In some embodiments, the two second bending portions correspondingly cover two sides of the electronic paper film, the backplane layer and the second waterproof layer along the width direction, and the two second extending portions are arranged on the surface of the second waterproof layer facing away from the backplane layer.

[0012] In some embodiments, it includes a second edge sealing glue layer, which is arranged between the second extending portion and the first extending portion, and between the second extending portion and the second waterproof layer.

[0013] In some embodiments, it includes an FPC cable electrically connected to the side of the backplane layer along the width direction. One of the second bending portions has an opening, and the FPC cable extends out of the opening of the second bending portion.

[0014] In some embodiments, the second bending portions are respectively perpendicular to the main body portion and the second extending portions.

[0015] In some embodiments, the thickness of the first waterproof layer is 10 - 50 μm.

[0016] In some embodiments, the first bending portions are respectively perpendicular to the main body portion and the first extending portions.

[0017] In some embodiments, the sides of the electronic paper film, the sides of the backplane layer and the sides of the second waterproof layer are correspondingly flush with each other.

[0018] In some embodiments, both sides of the first waterproof layer along the length direction exceed the side of the electronic paper film by at least 1 mm, and both sides of the first waterproof layer along the width direction exceed the side of the electronic paper film by at least 1 mm.

[0019] The present invention provides an electronic paper display module. Compared with the prior art, its beneficial effects are as follows:

[0020] The provided first waterproof layer includes a main body portion, two first bending portions and two first extending portions. The two first bending portions are arranged on both sides of the main body portion along the length direction. The two first extending portions are correspondingly connected to the two first bending portions. The two first bending portions correspondingly cover two sides of the electronic paper film, the backplane layer and the second waterproof layer along the length direction. The two first extending portions are arranged on the surface of the second waterproof layer facing away from the backplane layer. A first edge sealing glue layer is filled between the first extending portion and the second waterproof layer. Through the first bending portion, the size of the border along the length direction can be reduced, thereby improving the screen - to - body ratio. Through the first extending portion, the effect of sealing and waterproofing can be achieved. Description of the Drawings

[0021] Figure 1Schematic diagram of folding both sides of a first waterproof layer of an electronic paper display module provided by some embodiments of the present invention along the length direction.

[0022] Figure 2 Schematic diagram of the structure after folding both sides of a first waterproof layer of an electronic paper display module provided by some embodiments of the present invention along the length direction.

[0023] Figure 3 For Figure 2 Enlarged schematic diagram of the sectional structure along the a direction in

[0024] Figure 4 For Figure 2 Enlarged schematic diagram of the sectional structure along the b direction in

[0025] Figure 5 Schematic diagram of folding both sides of a first waterproof layer of an electronic paper display module provided by some embodiments of the present invention along the width direction.

[0026] Figure 6 For Figure 5 Schematic diagram of folding both sides of the first waterproof layer along the length direction on the basis of

[0027] Figure 7 Schematic diagram of the structure after folding both sides of a first waterproof layer of an electronic paper display module provided by some embodiments of the present invention along the width direction and both sides along the length direction.

[0028] Figure 8 For Figure 7 Enlarged schematic diagram of the sectional structure along the c direction in

[0029] Figure 9 For Figure 7 Enlarged schematic diagram of the sectional structure along the d direction in

[0030] In the figure: 1. First waterproof layer; 11. Main body part; 12. First bending part; 13. First extension part; 14. Second bending part; 15. Second extension part; 2. Electronic paper film; 3. Backplane layer; 4. Second waterproof layer; 5. First edge sealing adhesive layer; 6. Second edge sealing adhesive layer; 7. FPC cable; x. Length direction; y. Width direction. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0032] It should be understood that in the description of the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation to the present application. The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. That is, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In addition, unless otherwise specified, the meaning of "plural" is two or more.

[0033] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0034] Moreover, in order to clearly show the structures of the various layers of the electronic paper display module, Figure 3 、 Figure 4 、 Figure 8 and Figure 9 the thicknesses of the various layers in are magnified.

[0035] As Figures 1-4 shown, the electronic paper display module 100 of some embodiments of the present invention has a length direction x and a width direction y, and includes a first waterproof layer 1, an electronic paper film 2, a backplane layer 3, and a second waterproof layer 4. Among them, the first waterproof layer 1 and the second waterproof layer 4 can enable the electronic paper display module 100 to have a waterproof effect, and the electronic paper film 2 is connected to a power source through the backplane layer 3 so that the electronic paper film 2 can display.

[0036] The first waterproof layer 1 includes a main body portion 11, two first bending portions 12, and two first extending portions 13. The two first bending portions 12 are provided on both sides of the main body portion 11 along the length direction x, and the two first extending portions 13 are connected to the two first bending portions 12 in one-to-one correspondence. Specifically, the two first bending portions 12 and the two first extending portions 13 are formed by folding the two sides of the first waterproof layer 1 along the length direction x.

[0037] The electronic paper film 2 is provided on the surface of the main body portion 11. The backplane layer 3 is provided on the surface of the electronic paper film 2 facing away from the main body portion 11, and the backplane layer 3 is electrically connected to the electronic paper film 2. The second waterproof layer 4 is provided on the surface of the backplane layer 3 facing away from the electronic paper film 2.

[0038] In this embodiment, the two first bending portions 12 correspondingly cover both sides of the electronic paper film 2, the backplane layer 3 and the second waterproof layer 4 along the length direction x. The two first extending portions 13 are provided on the surface of the second waterproof layer 4 facing away from the backplane layer 3, and a first edge-sealing glue layer 5 is filled between the first extending portion 13 and the second waterproof layer 4. It should be noted that, as Figure 3 shown, in order to maintain the waterproof property, the first edge-sealing glue layer 5 is also provided on both sides of the electronic paper display module 100 along the width direction.

[0039] Based on the above structural arrangement, the first waterproof layer 1 includes a main body portion 11, two first bending portions 12 and two first extending portions 13. The two first bending portions 12 are arranged on both sides of the main body portion 11 along the length direction x. The two first extending portions 13 are correspondingly connected to the two first bending portions 12 one by one. The two first bending portions 12 correspondingly cover both sides of the electronic paper film 2, the backplane layer 3 and the second waterproof layer 4 along the length direction x. The two first extending portions 13 are provided on the surface of the second waterproof layer 4 facing away from the backplane layer 3, and a first edge-sealing glue layer 5 is filled between the first extending portion 13 and the second waterproof layer 4. In this way, the size of the border along the length direction can be reduced through the first bending portion 12, thereby improving the screen-to-body ratio, and the effect of sealing and waterproofing can be achieved through the first extending portion 13.

[0040] As Figures 5-9 shown, in some embodiments, the first waterproof layer 1 includes two second bending portions 14 and two second extending portions 15. The two second bending portions 14 are arranged on both sides of the main body portion 11 along the width direction y. The two second extending portions 15 are correspondingly connected to the two second bending portions 14 one by one. During the manufacturing process, the first waterproof layer 1 is first folded back along the width direction y to form two second bending portions 14 and two second extending portions 15, and then the first waterproof layer 1 is folded back along the length direction x to form two first bending portions 12 and two first extending portions 13.

[0041] As Figure 8 shown, in some embodiments, the two second bending portions 14 correspondingly cover both sides of the electronic paper film 2, the backplane layer 3 and the second waterproof layer 4 along the width direction y. The two second extending portions 15 are provided on the surface of the second waterproof layer 4 facing away from the backplane layer 3. In this way, both sides of the electronic paper film 2, the backplane layer 3 and the second waterproof layer 4 along the width direction y have waterproof property, further improving the waterproof effect.

[0042] As Figure 8 shown, in some embodiments, a second edge-sealing glue layer 6 is included, which is provided between the second extending portion 15 and the first extending portion 13, and between the second extending portion 15 and the second waterproof layer 4. In this way, the second extending portion 15 and the first extending portion 13 have waterproof property, and the second extending portion 15 and the second waterproof layer 4 have waterproof property.

[0043] As Figure 5As shown, in some embodiments, it includes an FPC cable 7 electrically connected to the side of the backplane layer 3 along the width direction y. One of the second bending portions 14 has an opening, and the FPC cable 7 extends out of the opening of the second bending portion 14. In this way, the installation of the second bending portion 14 is facilitated and the processing efficiency is improved.

[0044] In some embodiments, the thickness of the first waterproof layer 1 is 10 - 50 μm. In addition, the first waterproof layer 1 needs to have good flexibility.

[0045] In some embodiments, the first bending portion 12 is perpendicular to the main body portion 11 and the first extension portion 13 respectively. In this way, the structures on both sides of the electronic paper display module 100 along the length direction x are kept compact.

[0046] In some embodiments, the second bending portion 14 is perpendicular to the main body portion 11 and the second extension portion 15 respectively. In this way, the structures on both sides of the electronic paper display module 100 along the width direction y are kept compact.

[0047] In some embodiments, the sides of the electronic paper film 2, the sides of the backplane layer 3, and the sides of the second waterproof layer 4 are flush with each other one by one. In this way, it is beneficial for the first waterproof layer 1 to be folded back along the width direction y to form two second bending portions 14 and two second extension portions 15, and for the first waterproof layer 1 to be folded back along the length direction x to form two first bending portions 12 and two first extension portions 13.

[0048] In some embodiments, both sides of the first waterproof layer 1 along the length direction x exceed the side of the electronic paper film 2 by at least 1 mm, and both sides of the first waterproof layer 1 along the width direction y exceed the side of the electronic paper film 2 by at least 1 mm. In this way, the first waterproof layer 1 has enough area to be folded back to form two second bending portions 14, two second extension portions 15, two first bending portions 12, and two first extension portions 13.

[0049] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An electronic paper display module having a length direction and a width direction, characterized in that: include: The first waterproof layer comprises a main body, two first bent parts and two first extension parts, wherein the two first bent parts are arranged on both sides of the main body along the length direction, and the two first extension parts are connected to the two first bent parts in a one-to-one correspondence; An electronic paper film is arranged on the surface of the main body; A back plate layer, provided on a surface of the electronic paper film away from the main body, and the back plate layer is electrically connected to the electronic paper film; as well as A second waterproof layer is provided on a surface of the back plate layer away from the electronic paper film; Among them, the two first bending portions correspondingly cover the electronic paper film, the back panel layer and the second waterproof layer on both sides along the length direction, the two first extension portions are arranged on the surface of the second waterproof layer away from the back panel layer, and the first edge sealing adhesive layer is filled between the first extension portion and the second waterproof layer.

2. The electronic paper display module according to claim 1, characterized in that: The first waterproof layer includes two second bending portions and two second extending portions. The two second bending portions are arranged on both sides of the main body along the width direction. The two second extending portions are connected to the two second bending portions in a one-to-one correspondence.

3. The electronic paper display module according to claim 2, characterized in that: The two second bending portions correspondingly cover the electronic paper film, the back plate layer and the second waterproof layer on both sides along the width direction, and the two second extending portions are arranged on the surface of the second waterproof layer away from the back plate layer.

4. The electronic paper display module according to claim 3, characterized in that: It includes a second edge-sealing adhesive layer, which is arranged between the second extension part and the first extension part, and between the second extension part and the second waterproof layer.

5. The electronic paper display module according to claim 3, characterized in that: It includes an FPC cable electrically connected to the side of the back plate layer along the width direction, wherein one of the second bending portions has an opening, and the FPC cable extends out of the opening of the second bending portion.

6. The electronic paper display module according to claim 2, characterized in that: The second bending portion is perpendicular to the main body portion and the second extending portion respectively.

7. The electronic paper display module according to claim 1, characterized in that: The thickness of the first waterproof layer is 10-50 μm.

8. The electronic paper display module according to claim 1, characterized in that: The first bending portion is perpendicular to the main body portion and the first extending portion respectively.

9. The electronic paper display module according to claim 1, characterized in that: The side edges of the electronic paper film, the side edges of the back plate layer and the side edges of the second waterproof layer are aligned one by one.

10. The electronic paper display module according to claim 9, characterized in that: Both sides of the first waterproof layer along the length direction extend beyond the side edge of the electronic paper film by at least 1 mm, and both sides of the first waterproof layer along the width direction extend beyond the side edge of the electronic paper film by at least 1 mm.

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