Electronic paper and display device
By setting a through-hole conductive tape in the non-display area of the electronic paper to make electrical contact with the conductive layer and leaving a gap, the problems of conductive tape falling off and bulging are solved, and the conductivity and connection stability are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING BOE DISPLAY TECH CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
In existing electronic paper display technology, the contact surface between the conductive tape and the conductive layer completely covers the area corresponding to the conductive adhesive holes and the conductive layer, causing the conductive tape to fall off and bulge, which increases the difficulty of the process and affects the conductivity.
A first opening is provided in the non-display area of the electronic ink film, penetrating the first adhesive layer and the ink layer. A conductive tape is disposed in the first opening and makes electrical contact with the conductive layer. There are gaps between the conductive tape and the first adhesive layer and the ink layer, respectively.
This reduces the difficulty of contacting the conductive tape with the conductive layer, reduces the impact of laser cutting errors, avoids the conductive tape from falling off and bulging, and improves conductivity and connection stability.
Smart Images
Figure CN224176857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display technology. More specifically, it relates to an electronic paper and display device. Background Technology
[0002] In electronic paper display technology, the contact surface between the conductive tape and the conductive layer completely covers the area corresponding to the conductive adhesive holes and the conductive layer, causing the conductive tape to peel off and bulge. Utility Model Content
[0003] The purpose of this invention is to provide an electronic paper and display device to solve at least one of the problems existing in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] The first aspect of this utility model provides an electronic paper, including a device layer, an electronic ink film, and at least one conductive tape; the electronic ink film includes a first adhesive layer, an ink layer, and a conductive layer stacked sequentially.
[0006] In the non-display area of the electronic ink film, the electronic ink film has at least one first opening penetrating the first adhesive layer and the ink layer; the conductive tape is disposed in the first opening, the conductive tape is in electrical contact with the conductive layer, and there are gaps between the conductive tape and the first adhesive layer and the ink layer respectively.
[0007] Optionally, the device layer is located on the side of the ink layer away from the conductive layer; one side of the conductive tape is in electrical contact with the conductive layer, and the other side of the conductive tape is in electrical contact with the device layer.
[0008] Optionally, the outer edge region of the non-display area of the electronic ink film having the first opening is formed with an outwardly extending extension, and the first opening is at least partially formed in the extension.
[0009] Optionally, the electronic ink film further includes a first optical adhesive layer located on the side of the conductive layer away from the ink layer; the electronic paper further includes a protective layer located on the side of the conductive layer away from the ink layer.
[0010] Optionally, the electronic ink film includes a plurality of the conductive tapes and has a plurality of the first openings.
[0011] Optionally, the first opening is provided on at least two sides of the non-display area of the electronic ink film in a direction parallel to the ink layer.
[0012] Optionally, the non-display area of the electronic ink film has at least two first openings on one side in a direction parallel to the plane of the ink layer.
[0013] Optionally, the area of the conductive tape projected onto the conductive layer is greater than or equal to 0.2 mm². 2 .
[0014] Optionally, the electronic paper further includes a sealant; the sealant is located at the outer edge of the electronic ink film and between the protective layer and the device layer.
[0015] The second aspect of this utility model provides a display device, including electronic paper as described in the first aspect of this utility model.
[0016] The beneficial effects of this utility model are as follows:
[0017] The technical solution described in this utility model reduces the difficulty of achieving surface contact between the conductive tape and the first adhesive layer and the ink layer by setting gaps between them. It also reduces the difficulty of laser cutting conductive adhesive holes, reduces the impact of laser cutting errors on the surface contact between the conductive tape and the conductive layer, and avoids the conductive tape from falling off or bulging, which would affect conductivity and connection performance. Attached Figure Description
[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0019] Figures 1 to 35 This diagram illustrates the structure of the electronic paper provided in an embodiment of the present invention. Detailed Implementation
[0020] The terms “on…”, “formed on…”, and “set on…” used in this invention can indicate that one layer is directly formed or set on another layer, or that one layer is indirectly formed or set on another layer, meaning that there are other layers between the two layers.
[0021] It should be noted that although the terms "first," "second," etc., may be used herein to describe various components, members, elements, regions, layers, and / or parts, these components, members, elements, regions, layers, and / or parts should not be limited by these terms. Rather, these terms are used to distinguish one component, member, element, region, layer, and / or part from another. Thus, for example, the first component, first member, first element, first region, first layer, and / or first part discussed below may be referred to as the second component, second member, second element, second region, second layer, and / or second part without departing from the teachings of this utility model.
[0022] In this invention, unless otherwise stated, the term "co-layer arrangement" refers to two layers, components, members, elements, or portions that can be formed by the same fabrication process (e.g., patterning process), and that these two layers, components, members, elements, or portions are generally formed of the same material. For example, co-layer arrangement of two or more functional layers means that these co-layer functional layers can be formed using the same material layer and the same fabrication process, thereby simplifying the fabrication process of the display substrate.
[0023] In electronic paper display technology, the contact surface between the conductive tape and the conductive layer can completely cover the area corresponding to the conductive adhesive holes and the conductive layer, leading to peeling and bulging of the conductive tape. Specifically, for the contact surface to completely cover the area corresponding to the conductive adhesive holes and the conductive layer, the area of the contact surface must equal the area of the corresponding area. This increases the difficulty of achieving surface contact between the conductive tape and the conductive layer, increases the difficulty of laser cutting the conductive adhesive holes, and increases the impact of laser cutting errors on the surface contact between the conductive tape and the conductive layer. This easily leads to peeling and bulging of the conductive tape, severely affecting its conductivity.
[0024] In view of this, the first embodiment of the present invention provides an electronic paper, including a device layer, an electronic ink film, and at least one conductive tape; the electronic ink film includes a first adhesive layer, an ink layer, and a conductive layer stacked sequentially; in the non-display area of the electronic ink film, the electronic ink film has at least one first opening penetrating the first adhesive layer and the ink layer; the conductive tape is disposed in the first opening, the conductive tape is in electrical contact with the conductive layer, and there are gaps between the conductive tape and the first adhesive layer and the ink layer respectively.
[0025] In a specific example, such as Figure 1 As shown, the electronic paper includes a device layer 600, an electronic ink film 10, and at least one conductive tape 201. The electronic ink film 10 includes a first adhesive layer 101, an ink layer 102, a conductive layer 103, and at least one conductive tape 201 stacked sequentially. In the non-display area 200 of the electronic ink film 10, the electronic ink film 10 has at least one first opening 202 penetrating through the first adhesive layer 101 and the ink layer 102. The conductive tape 201 is disposed in the first opening 202, and the conductive tape 201 is in electrical contact with the conductive layer 103. There are gaps 203 between the conductive tape 201 and the first adhesive layer 101 and the ink layer 102, respectively.
[0026] Furthermore, such as Figure 1 As shown, device layer 600 is a TFT; electronic ink film 10 includes display area 100. Further, as... Figure 1As shown, the gap 203 includes a first gap 2031 on the side closer to the display area 100 and a second gap 2032 on the side farther from the display area 100.
[0027] Furthermore, such as Figure 2 As shown, Figure 1 for Figure 2 Cross-sectional view of surface AA. Figure 2 The gaps include a first gap 2031, a second gap 2032, a third gap 2033, and a fourth gap 2034; further, Figure 2 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0028] Or, such as Figure 3 As shown, Figure 1 for Figure 3 Cross-sectional view of surface AA. Figure 3 The gaps include a first gap 2031 and a second gap 2032; further, Figure 3 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0029] Or, such as Figure 4 As shown, Figure 1 for Figure 4 Cross-sectional view of surface AA. Figure 4 The gaps include a first gap 2031, a second gap 2032, and a third gap 2033; further, Figure 4 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0030] Or, such as Figure 5 As shown, Figure 1 for Figure 5 Cross-sectional view of surface AA. Figure 5 The gaps include a first gap 2031, a second gap 2032, and a fourth gap 2034. Furthermore, Figure 5 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0031] In a specific example, such as Figure 6 As shown, the conductive tape 201 has gaps 203 between itself and the first adhesive layer 101 and the ink layer 102, and the gaps 203 include a first gap 2031 near the side of the display area 100.
[0032] Furthermore, such as Figure 7 As shown, Figure 6 for Figure 7 Cross-sectional view of surface AA. Figure 7 The gaps include a first gap 2031, a third gap 2033, and a fourth gap 2034. Furthermore, Figure 7 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0033] Or, such as Figure 8 As shown, Figure 6 for Figure 8 Cross-sectional view of surface AA. Figure 8 The gap includes a first gap 2031. Further, Figure 8 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0034] Or, such as Figure 9 As shown, Figure 6 for Figure 9 Cross-sectional view of surface AA. Figure 9 The gaps include a first gap 2031 and a third gap 2033. Furthermore, Figure 9 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0035] Or, such as Figure 10 As shown, Figure 6 for Figure 10 Cross-sectional view of surface AA. Figure 10 The gaps include a first gap 2031 and a fourth gap 2034. Furthermore, Figure 10 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0036] In a specific example, such as Figure 11 As shown, the conductive tape 201 has gaps 203 between itself and the first adhesive layer 101 and the ink layer 102, and the gaps 203 include a second gap 2032 on the side away from the display area 100.
[0037] Furthermore, such as Figure 12 As shown, Figure 11 for Figure 12 Cross-sectional view of surface AA. Figure 12 The gaps include a second gap 2032, a third gap 2033, and a fourth gap 2034. Furthermore, Figure 12 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0038] Or, such as Figure 13 As shown, Figure 11 for Figure 13Cross-sectional view of surface AA. Figure 13 The gap includes a second gap 2032. Furthermore, Figure 13 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0039] Or, such as Figure 14 As shown, Figure 11 for Figure 14 Cross-sectional view of surface AA. Figure 14 The gaps include a second gap 2032 and a third gap 2033. Furthermore, Figure 14 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0040] Or, such as Figure 15 As shown, Figure 11 for Figure 15 Cross-sectional view of surface AA. Figure 15 The gaps include a second gap 2032 and a fourth gap 2034. Furthermore, Figure 15 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0041] This implementation effectively reduces the border of the electronic ink film by setting a regular shape, and is more conducive to achieving the maximum screen size design.
[0042] In a specific example, such as Figure 1 As shown, the electronic paper includes a device layer 600 and an electronic ink film; the device layer 600 is located on the side of the ink layer 102 away from the conductive layer 103; one side of the conductive tape 201 is in electrical contact with the conductive layer 103, and the other side of the conductive tape 201 is in electrical contact with the device layer 600.
[0043] Furthermore, such as Figure 1 As shown, conductive tape 201 is a metal foil or conductive cloth with highly conductive adhesive backing, which can form reliable contact surfaces with the conductive layer 103 and the device layer 600 of the electronic ink film, respectively.
[0044] Furthermore, such as Figure 1 As shown, the conductive tape 201 is in surface contact with part of the conductive layer 103 and the device layer 600 of the electronic ink film. The adhesion between the two film layers is large, which reduces the risk of partial separation between the two film layers, improves the conductivity between the electronic ink film and the device layer 600, and realizes effective control of the screen display of the electronic ink film by the device layer 600.
[0045] It should be noted that this embodiment is illustrated using the example where both the shape of the first opening and the shape of the conductive tape are rectangular; this embodiment can also be configured such that both the shape of the first opening and the shape of the conductive tape are circular or square, etc.; this embodiment can also be configured such that the shape of the first opening and the shape of the conductive tape are different.
[0046] It should be noted that this embodiment is illustrated by setting the first opening and conductive tape on the first side of the non-display area; in this embodiment, the first opening and conductive tape can also be set on the second side of the non-display area, or on the fourth side of the non-display area.
[0047] This embodiment reduces the difficulty of achieving surface contact between the conductive tape and the first adhesive layer and the ink layer by setting gaps between them. It also reduces the difficulty of laser cutting conductive adhesive holes, reduces the impact of laser cutting errors on the surface contact between the conductive tape and the conductive layer, and avoids peeling and bulging of the conductive tape, which would seriously affect its conductivity.
[0048] In one possible implementation, the outer edge region of the non-display area of the electronic ink film having the first opening is formed with an outwardly extending extension, the first opening being at least partially formed in the extension.
[0049] In a specific example, such as Figure 16 As shown, the outer edge region of the non-display area 400 of the electronic ink film 20, which has a first opening 501, is formed with an outwardly extending extension 500, and the first opening 501 is at least partially opened in the extension 500.
[0050] Furthermore, such as Figure 16 As shown, the electronic ink film 20 also includes a display area 300; a conductive tape 502 is disposed in the first opening 501, the conductive tape 502 is in electrical contact with the conductive layer, and there are gaps between the conductive tape 502 and the first adhesive layer and the ink layer respectively; furthermore, Figure 16 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0051] Furthermore, such as Figure 16 As shown, the gaps include a first gap 5031, a second gap 5032, a third gap 5033, and a fourth gap 5034.
[0052] Or, such as Figure 17 As shown, the gap includes a first gap 5031 and a second gap 5032. Further, Figure 17 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0053] Or, such as Figure 18 As shown, the gaps include a first gap 5031, a second gap 5032, and a third gap 5033. Furthermore, Figure 18 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0054] Or, such as Figure 19 As shown, the gaps include a first gap 5031, a second gap 5032, and a fourth gap 5034. Further, Figure 19 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0055] Furthermore, such as Figure 20 As shown, the gaps include a first gap 5031, a third gap 5033, and a fourth gap 5034. Furthermore, Figure 20 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0056] Or, such as Figure 21 As shown, the gap includes a first gap 5031. Furthermore, Figure 21 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0057] Or, such as Figure 22 As shown, the gaps include a first gap 5031 and a third gap 5033. Furthermore, Figure 22 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0058] Or, such as Figure 23 As shown, the gaps include a first gap 5031 and a fourth gap 5034. Further, Figure 23 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0059] Furthermore, such as Figure 24 As shown, the gaps include a second gap 5032, a third gap 5033, and a fourth gap 5034. Furthermore, Figure 24 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0060] Or, such as Figure 25 As shown, the gap includes a second gap 5032. Furthermore, Figure 25The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0061] Or, such as Figure 26 As shown, the gaps include a second gap 5032 and a third gap 5033. Furthermore, Figure 26 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0062] Or, such as Figure 27 As shown, the gaps include a second gap 5032 and a fourth gap 5034. Furthermore, Figure 27 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0063] It should be noted that this embodiment is described using the example of an outwardly extending extension formed on the outer edge of the first side of the non-display area of the electronic ink film with a first opening; this embodiment may also have an outwardly extending extension formed on the outer edge of the second side of the non-display area of the electronic ink film with a first opening, an outwardly extending extension formed on the outer edge of the third side of the non-display area of the electronic ink film with a first opening, and an outwardly extending extension formed on the outer edge of the fourth side of the non-display area of the electronic ink film with a first opening.
[0064] This embodiment, by providing an extension and a first opening in the extension, can be compatible with existing electronic paper production processes, reduce production costs, and improve production efficiency.
[0065] In one possible implementation, the electronic ink film further includes a first optical adhesive layer located on the side of the conductive layer away from the ink layer.
[0066] In a specific example, such as Figure 1 , Figure 6 and Figure 11 As shown, the electronic ink film 10 also includes a first optical adhesive layer 104, which is located on the side of the conductive layer 103 away from the ink layer 102.
[0067] This embodiment provides a basis for covering the conductive layer with a protective layer by setting a first optical adhesive layer. Using the first optical adhesive layer can simplify the production process and reduce production costs.
[0068] In one possible implementation, the non-display area of the electronic ink film has at least two first openings on one side in a direction parallel to the plane of the ink layer.
[0069] In a specific example, such as Figure 28 As shown, the non-display area 200 of the electronic ink film 10 has at least two first openings 202 on one side in a direction parallel to the plane of the ink layer.
[0070] further, Figure 28 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0071] This embodiment improves the overall conductivity of the conductive tape by opening at least two first openings on one side of the non-display area of the regularly shaped electronic ink film, thereby reducing the frame, simplifying the process, lowering production costs, and increasing production efficiency, and also improving the cutting rate of the electronic ink film.
[0072] In a specific example, such as Figure 29 As shown, the non-display area 400 of the electronic ink film 20 has at least two first openings 501 on one side in a direction parallel to the plane of the ink layer.
[0073] further, Figure 29 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0074] Furthermore, such as Figure 29 As shown, the outer edge region of the first side 410 of the non-display area 400 of the electronic ink film 20 having a first opening 501 has at least two outwardly extending portions 500, and each first opening 501 is at least partially opened in the corresponding extension portion 500.
[0075] It should be noted that this embodiment is described using the example of having at least two first openings on the first side of the non-display area of the electronic ink film in a direction parallel to the ink layer. This embodiment may also have at least two first openings on the second side of the non-display area of the electronic ink film in a direction parallel to the ink layer, at least two first openings on the third side of the non-display area of the electronic ink film in a direction parallel to the ink layer, and at least two first openings on the fourth side of the non-display area of the electronic ink film in a direction parallel to the ink layer.
[0076] It should be noted that this embodiment is illustrated by taking the example of at least two first openings being formed on the first side of the non-display area of the electronic ink film in a direction parallel to the ink layer, with the same gap between the conductive tape and the first adhesive layer and the ink layer in the two first openings; this embodiment can also be illustrated by at least two first openings being formed on the first side of the non-display area of the electronic ink film in a direction parallel to the ink layer, with different gaps between the conductive tape and the first adhesive layer and the ink layer in the two first openings; this embodiment can also be illustrated by at least two first openings being formed on the second side of the non-display area of the electronic ink film in a direction parallel to the ink layer, with the same or different gaps between the conductive tape and the first adhesive layer and the ink layer in the two first openings; at least two first openings being formed on the third side of the non-display area of the electronic ink film in a direction parallel to the ink layer, with the same or different gaps between the conductive tape and the first adhesive layer and the ink layer in the two first openings; and at least two first openings being formed on the fourth side of the non-display area of the electronic ink film in a direction parallel to the ink layer, with the same or different gaps between the conductive tape and the first adhesive layer and the ink layer in the two first openings.
[0077] This embodiment provides at least two first openings on the non-display area side, enabling at least two conductive tapes to serve as backups for each other. This reduces the probability of electrical connection failures between the conductive layer and the device layer and improves the overall conductivity of the conductive tapes.
[0078] In one possible implementation, the first opening is provided on at least two sides of the non-display area of the electronic ink film in a direction parallel to the ink layer.
[0079] In a specific example, such as Figure 30 As shown, the non-display area 200 of the electronic ink film 10 has a first opening 202 on at least two sides in a direction parallel to the ink layer.
[0080] further, Figure 30 The non-display area 200 includes a first side 210, a second side 220, a third side 230, and a fourth side 240.
[0081] This embodiment improves the overall conductivity of the conductive tape and increases the cutting rate of the electronic ink film by providing first openings on at least two sides of the non-display area of the regularly shaped electronic ink film.
[0082] In a specific example, such as Figure 31 As shown, the non-display area 400 of the electronic ink film 20 has a first opening 501 on at least two sides in a direction parallel to the plane of the ink layer.
[0083] further, Figure 31 The non-display area 400 includes a first side 410, a second side 420, a third side 430, and a fourth side 440.
[0084] It should be noted that this embodiment is described using the example of an electronic ink film having at least one first opening on the first side and at least one first opening on the second side in a direction parallel to the ink layer in the non-display area of the electronic ink film. In this embodiment, at least one first opening may be provided on each side of any two of the first, second, third, and fourth sides in a direction parallel to the ink layer in the non-display area of the electronic ink film; at least one first opening may be provided on each side of any three of the first, second, third, and fourth sides in a direction parallel to the ink layer in the non-display area of the electronic ink film; and at least one first opening may be provided on each side of the first, second, third, and fourth sides in a direction parallel to the ink layer in the non-display area of the electronic ink film.
[0085] It should be noted that, in this embodiment, at least one first opening may be provided on each of any two sides of the first, second, third, and fourth sides of the non-display area of the electronic ink film in a direction parallel to the ink layer, and the number of first openings on each side may be the same or different; at least one first opening may be provided on each of any three sides of the first, second, third, and fourth sides of the non-display area of the electronic ink film in a direction parallel to the ink layer, and the number of first openings on each side may be the same or different; at least one first opening may be provided on each of the first, second, third, and fourth sides of the non-display area of the electronic ink film in a direction parallel to the ink layer, and the number of first openings on each side may be the same or different.
[0086] It should be noted that, in this embodiment, at least one first opening may be provided on each of any two sides of the first, second, third, and fourth sides of the non-display area of the electronic ink film in a direction parallel to the ink layer, and the number of first openings on each side may be the same or different, and the gaps between the conductive tape and the first adhesive layer and the ink layer in the plurality of first openings on each side may be the same or different; at least one first opening may be provided on each of any three sides of the first, second, third, and fourth sides of the non-display area of the electronic ink film in a direction parallel to the ink layer, and the number of first openings on each side may be the same or different, and the gaps between the conductive tape and the first adhesive layer and the ink layer in the plurality of first openings on each side may be the same or different; at least one first opening may be provided on each of the first, second, third, and fourth sides of the non-display area of the electronic ink film in a direction parallel to the ink layer, and the number of first openings on each side may be the same or different, and the gaps between the conductive tape and the first adhesive layer and the ink layer in the plurality of first openings on each side may be the same or different.
[0087] This embodiment improves the personalization of electronic ink films by providing first openings on at least two sides of the non-display area of the electronic ink film, enhances the design flexibility of electronic ink films, improves the applicability of electronic ink films in different electronic papers, and improves the overall conductivity of conductive tapes by providing first openings on at least two sides of the non-display area of the electronic ink film.
[0088] In one possible implementation, the electronic ink film includes a plurality of the conductive tapes and has a plurality of the first openings.
[0089] In a specific example, such as Figure 28 As shown, the electronic ink film 10 includes a plurality of conductive tapes 201 and has a plurality of first openings 202. Further, at least two first openings 202 are provided on one side of the non-display area 200, and at least two conductive tapes 201 are correspondingly disposed in at least two first openings 202.
[0090] In a specific example, such as Figure 29 As shown, the electronic ink film 20 includes a plurality of conductive tapes 502 and has a plurality of first openings 501. Furthermore, at least two first openings 501 are provided on one side of the non-display area 400, and at least two conductive tapes 502 are correspondingly disposed in at least two first openings 501.
[0091] In a specific example, such as Figure 30 As shown, the electronic ink film 10 includes a plurality of conductive tapes 201 and has a plurality of first openings 202. Further, at least two first openings 202 are provided on one side of the non-display area 200, and at least two conductive tapes 201 are correspondingly disposed in at least two first openings 202.
[0092] In a specific example, such as Figure 31 As shown, the electronic ink film 20 includes a plurality of conductive tapes 502 and has a plurality of first openings 501. Furthermore, at least two first openings 501 are provided on one side of the non-display area 400, and at least two conductive tapes 502 are correspondingly disposed in at least two first openings 501.
[0093] It should be noted that in this embodiment, at least two conductive tapes can be placed in a first opening, and there are gaps between the multiple conductive tapes in the first opening and the first adhesive layer and the ink layer.
[0094] This embodiment improves the diversity and practicality of electronic ink films and enhances the overall conductivity of conductive tapes by setting the electronic ink film to include multiple conductive tapes and having multiple first openings. The first openings are located on at least two sides of the non-display area and on one side of the non-display area.
[0095] In one possible implementation, the electronic paper further includes a protective layer and a sealant; the protective layer is located on the side of the conductive layer away from the ink layer; the sealant is located at the outer edge of the electronic ink film and between the protective layer and the device layer.
[0096] In a specific example, such as Figure 32 As shown, Figure 32 for Figure 33 A cross-sectional view of the middle BB side shows that the electronic paper also includes a protective layer 105 and a sealant 106; the protective layer 105 is located on the side of the conductive layer 103 away from the ink layer 102; the sealant 106 is located at the outer edge of the electronic ink film 10 and between the protective layer 105 and the device layer 600. Further, as... Figures 32 to 33 As shown, the electronic paper also includes a conductive tape 201, a first opening 202, a gap 203, a device layer 600, an electronic ink film 10, and a display area 100.
[0097] Furthermore, such as Figures 32 to 33 As shown, the electronic paper display structure also includes a driving circuit 700, a flexible circuit board 800, and a silicone rubber (RTV) 900. The driving circuit 700 is a driver for the electronic ink film display, and the electronic ink film is electrically connected to the driving circuit 700 via conductive tape 201. The flexible circuit board 800 is used to connect to the system circuit board, and the pins of the driving circuit 700 correspond one-to-one with the metal terminal pins of the flexible circuit board 800. External control signals are connected to the flexible circuit board 800 through corresponding interfaces, and the flexible circuit board 800 then controls the driving circuit 700 to respond to the external signals, thereby controlling the brightness and color of the displayed image.
[0098] This embodiment effectively increases the cutting quantity of the protective layer, electronic ink film, and device layer by setting a regular shape.
[0099] In a specific example, such as Figure 34 As shown, Figure 34 for Figure 35 A cross-sectional view of the middle BB side shows that the electronic paper also includes a protective layer 105 and a sealant 106; the protective layer 105 is located on the side of the conductive layer 103 away from the ink layer 102; the sealant 106 is located at the outer edge of the electronic ink film 10 and between the protective layer 105 and the device layer 600. Further, as... Figures 34 to 35 As shown, the electronic paper also includes a first opening 501, a conductive tape 502 and a gap 503, a device layer 600, an electronic ink film 20, and a display area 300.
[0100] Furthermore, such as Figures 34 to 35 As shown, the electronic paper display structure also includes a driving circuit 700, a flexible circuit board 800, and silicone rubber 900. The driving circuit 700 is a driver for the electronic ink film display, and the electronic ink film is electrically connected to the driving circuit 700 via conductive tape 201. The flexible circuit board 800 is used to connect to the system circuit board, and the pins of the driving circuit 700 correspond one-to-one with the metal terminal pins of the flexible circuit board 800. External control signals are connected to the flexible circuit board 800 through corresponding interfaces, and the flexible circuit board 800 then controls the driving circuit 700 to respond to the external signals, thereby controlling the brightness and color of the displayed image.
[0101] This embodiment uses silicone rubber to protect the drive circuit. The silicone rubber is mainly coated around the drive circuit, providing all-around protection. This embodiment also includes UV adhesive applied to the bends of the flexible circuit board, which effectively prevents tearing and increases its push-pull strength.
[0102] It should be noted that this embodiment is illustrated using the example of both the shape of the electronic ink film and the shape of the protective layer being a single loop or both the shape of the electronic ink film and the shape of the protective layer being rectangular; this embodiment can also be configured such that the shape of the electronic ink film is a single loop and the shape of the protective layer is rectangular.
[0103] This embodiment achieves the functions of preventing moisture and protecting the image by setting a protective layer, thereby improving the water resistance of the display paper; and achieves the functions of sealing and preventing moisture by setting a sealant, which is mainly applied to the four edges of the electronic ink film to improve the sealing performance of the display paper.
[0104] In one possible implementation, the area of the conductive tape projected onto the conductive layer is greater than or equal to 0.2 mm². 2 .
[0105] In a specific example, such as Figure 1 , Figure 6 and Figure 11 As shown, the area of the conductive tape 201 projected onto the conductive layer 103 is greater than or equal to 0.2 mm². 2 Furthermore, the area of the first opening 202 projected onto the conductive layer 103 is greater than 0.2 mm². 2 .
[0106] In a specific example, such as Figures 2 to 5 , Figures 7 to 10 , Figures 12 to 15 , Figure 28 and Figure 30 As shown, the area of the conductive tape 201 projected onto the conductive layer is greater than 0.2 mm². 2 Furthermore, the area of the first opening 202 projected onto the conductive layer 103 is greater than 0.2 mm². 2 .
[0107] In a specific example, such as Figures 16 to 27 , Figure 29 and Figure 31 As shown, the area of the conductive tape 502 projected onto the conductive layer is greater than or equal to 0.2 mm². 2 Furthermore, the area of the first opening 501 projected onto the conductive layer 103 is greater than 0.2 mm². 2 .
[0108] In this embodiment, the area of the conductive tape's orthogonal projection onto the conductive layer is set to be greater than or equal to 0.2 mm. 2 Furthermore, the area of the first opening projected onto the conductive layer is larger than the area of the conductive tape projected onto the conductive layer. This increases the gap between the conductive tape and the first adhesive layer and the ink layer while ensuring conductivity, thus improving the feasibility of the electronic paper manufacturing process.
[0109] A second embodiment of the present invention provides a display device including electronic paper as described in the first embodiment of the present invention.
[0110] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. An electronic paper, characterized in that, It includes a device layer, an electronic ink film, and at least one conductive tape; the electronic ink film includes a first adhesive layer, an ink layer, and a conductive layer stacked sequentially. In the non-display area of the electronic ink film, the electronic ink film has at least one first opening penetrating the first adhesive layer and the ink layer; the conductive tape is disposed in the first opening, the conductive tape is in electrical contact with the conductive layer, and there are gaps between the conductive tape and the first adhesive layer and the ink layer respectively.
2. The electronic paper according to claim 1, characterized in that, The device layer is located on the side of the ink layer away from the conductive layer; one side of the conductive tape is in electrical contact with the conductive layer, and the other side of the conductive tape is in electrical contact with the device layer.
3. The electronic paper according to claim 1, characterized in that, The outer edge region of the non-display area of the electronic ink film having the first opening has an outwardly extending extension, and the first opening is at least partially formed in the extension.
4. The electronic paper according to claim 1 or 3, characterized in that, The electronic ink film further includes a first optical adhesive layer located on the side of the conductive layer away from the ink layer; the electronic paper further includes a protective layer located on the side of the conductive layer away from the ink layer.
5. The electronic paper according to claim 1, characterized in that, The electronic ink film includes a plurality of the conductive tapes and has a plurality of the first openings.
6. The electronic paper according to claim 5, characterized in that, The electronic ink film has the first opening on at least two sides of the non-display area in a direction parallel to the ink layer.
7. The electronic paper according to claim 5 or 6, characterized in that, The electronic ink film has at least two first openings on one side of the non-display area in a direction parallel to the plane of the ink layer.
8. The electronic paper according to claim 7, characterized in that, The area of the conductive tape projected onto the conductive layer is greater than or equal to 0.2 mm². 2 .
9. The electronic paper according to claim 8, characterized in that, The electronic paper also includes a sealant located at the outer edge of the electronic ink film and between the protective layer and the device layer.
10. A display device, characterized in that, Including electronic paper as described in any one of claims 1-9.