Electronic paper rheological screen

Abstract

The utility model relates to the technical field of display screens, and discloses an electronic paper rheological screen, which has a first direction and a second direction which are intersected pairwise, and comprises a glass cover plate, an electronic ink film and an I TO waterproof film which are sequentially stacked from bottom to top, a part of the electronic ink film extends out of the glass cover plate along the first direction to form a first conductive part, a part of the I TO waterproof film extends out of the glass cover plate along the first direction to form a second conductive part, and the first conductive part and the second conductive part are used for being electrically connected with an external mainboard. The beneficial effects of the utility model are that the connection structure of the electronic ink film, the I TO waterproof film and the external mainboard is simplified, the production technology is simplified, the production cost is reduced, and mass production is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, and in particular to an electronic paper rheostat. Background Technology

[0002] Electronic paper ink displays are a type of display technology that utilizes electrophoretic display technology. They achieve the effect of displaying images by continuously applying an electric field of a driving waveform to each pixel through a driving IC chip, thereby driving the electronic paper particles. Electronic paper ink displays feature ultra-low power consumption, low-frequency display, and energy saving, making them widely applicable in price tags, advertising signs, and bus stop signs.

[0003] Currently, to facilitate the connection between electronic paper and an external motherboard, conductive adhesive is typically used to connect an FPC connector to the electronic ink film and ITO waterproof film for electrical connection with the external motherboard. This connection method occupies the display area on the electronic ink film, resulting in a smaller display area and affecting the display effect. Furthermore, the process of using conductive adhesive and FPC connectors is complex and costly, hindering mass production. Utility Model Content

[0004] The purpose of this invention is to provide an electronic paper rheostat that simplifies the connection structure between the electronic ink film, the ITO waterproof film, and the external motherboard, simplifies the production process, reduces production costs, and facilitates mass production.

[0005] To achieve the above objectives, this utility model provides an electronic paper rheostat screen with a first direction and a second direction intersecting each other, including a glass cover plate, an electronic ink film, and an ITO waterproof film stacked sequentially from bottom to top;

[0006] A portion of the electronic ink film extends along the first direction to the outside of the glass cover plate and forms a first conductive portion; a portion of the ITO waterproof film extends along the first direction to the outside of the glass cover plate and forms a second conductive portion; the first conductive portion and the second conductive portion are used for electrical connection with an external motherboard.

[0007] Furthermore, the first conductive portion and the second conductive portion are spaced apart in the second direction, and the gap W between the first conductive portion and the second conductive portion is greater than or equal to 1 mm.

[0008] Furthermore, in the first direction, the length L1 of the first conductive portion extending beyond the glass cover is greater than or equal to 5 mm.

[0009] Furthermore, the length L2 of the first conductive portion in the second direction is greater than 1 mm.

[0010] Furthermore, the distance d between the edge of the electronic ink film and the edge of the ITO waterproof film is 1.2mm-2mm.

[0011] Furthermore, a sealant layer is provided around the periphery of the electronic ink film, with one end of the sealant layer attached to the glass cover and the other end attached to the ITO waterproof membrane.

[0012] Furthermore, in the first direction, the length L3 of the second conductive portion extending beyond the glass cover is greater than or equal to 5 mm.

[0013] Furthermore, the length L4 of the second conductive portion in the second direction is greater than 1 mm.

[0014] Furthermore, the first conductive part and the second conductive part are rectangular in shape on the horizontal plane.

[0015] Compared with the prior art, the electronic paper rheotropic screen of this utility model has the following advantages: a first conductive part is formed by a portion of the electronic ink film extending out of the glass cover along the first direction, and a second conductive part is formed by a portion of the ITO waterproof film extending out of the glass cover along the first direction. The first and second conductive parts are electrically connected to the external motherboard, eliminating the need for conductive adhesive and FPC connectors. This increases the display area of ​​the electronic paper rheotropic screen, simplifies the production process, reduces production costs, and facilitates mass production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an electronic paper rheostat in the prior art;

[0017] Figure 2 This is a top view of the electronic paper rheostat of this utility model embodiment;

[0018] Figure 3 This is a side view of the electronic paper rheostat of this utility model embodiment;

[0019] In the figure, 1 is the glass cover; 2 is the electronic ink film; 21 is the first conductive part; 3 is the ITO waterproof film; 31 is the second conductive part; 4 is the conductive adhesive; 5 is the FPC connector; X is the first direction; Y is the second direction; a is the display area. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0023] like Figure 1 As shown, in the prior art, the presence of conductive adhesive 4 and FPC connector 5 results in a smaller display area a of the electronic ink film, and the manufacturing process is more complex, which is not conducive to mass production.

[0024] See Figure 2 , Figure 3 A preferred embodiment of this utility model provides an electronic paper rheostat screen with intersecting first and second directions X and Y, comprising a glass cover plate 1, an electronic ink film 2, and an ITO waterproof film 3 stacked sequentially from bottom to top. For ease of explanation, the length direction of the glass cover plate 1 is defined as the first direction X, and the width direction of the glass cover plate 1 is defined as the second direction Y. (See reference...) Figure 2 A first conductive portion 21 is formed on a portion of the electronic ink film 2 extending outward along the first direction X to the outside of the glass cover plate 1. A second conductive portion 31 is formed on a portion of the ITO waterproof film 3 extending outward along the first direction X to the outside of the glass cover plate 1. The first conductive portion 21 and the second conductive portion 31 are used for electrical connection with an external motherboard. When setting the first conductive portion 21 and the second conductive portion 31, the length of the first conductive portion 21 and the second conductive portion 31 is reserved when cutting the electronic ink film 2 and the ITO waterproof film 3. Because the electronic ink film 2 and the ITO waterproof film 3 are made of soft materials, the first conductive portion 21 and the second conductive portion 31 can be bent and electrically connected to the external motherboard through wires. There is no need to set the conductive adhesive 4 and the FPC connector 5 on the electronic ink film 2. While increasing the display area a, the production process is simplified and the production cost is reduced.

[0025] In some embodiments, in order to facilitate wiring the first conductive part 21 and the second conductive part 31 and to avoid the first conductive part 21 and the second conductive part 31 from blocking each other in the thickness direction during wiring, the first conductive part 21 and the second conductive part 31 are spaced apart in the second direction Y. At the same time, to avoid the first conductive part 21 and the second conductive part 31 from contacting and short-circuiting during wiring, the gap W between the first conductive part 21 and the second conductive part 31 in the second direction Y is greater than or equal to 1 mm.

[0026] In some embodiments, to facilitate wiring operations on the first conductive part 21, the length L1 of the first conductive part 21 extending outside the glass cover plate 1 in the first direction X is greater than or equal to 5 mm. Further, to ensure the first conductive part 21 has sufficient structural strength and to prevent it from easily breaking after bending, the length L2 of the first conductive part 21 in the second direction Y is greater than 1 mm. Similarly, to facilitate the configuration of the second conductive part 31 and to ensure it has sufficient structural strength, the length L3 of the second conductive part 31 extending outside the glass cover plate 1 in the first direction X is greater than or equal to 5 mm, and the length L4 of the second conductive part 31 in the second direction Y is greater than 1 mm. The dimensions of the first conductive part 21 and the second conductive part 31 can be adjusted according to actual wiring requirements. In this embodiment, both the first conductive part 21 and the second conductive part 31 are rectangular in shape on the horizontal plane, which is easy to cut and process. The shapes of the first conductive part 21 and the second conductive part 31 can also be adjusted according to actual wiring needs.

[0027] In this embodiment, since there is no need to set up structures such as conductive adhesive 4 and FPC connector 5, the display area of ​​electronic ink film 2 is increased. When ITO waterproof film 3 covers electronic ink film 2, ITO waterproof film 3 and electronic ink film 2 are centrally positioned on glass cover plate 1. The distance d between the edge of electronic ink film 2 and the edge of ITO waterproof film 3 is 1.2mm-2mm, which can be adaptively adjusted according to actual design requirements.

[0028] Furthermore, in order to ensure the overall waterproof effect of the electronic paper rheostat, a sealant layer (not shown in the figure) is provided around the electronic ink film 2. One end of the sealant layer is attached to the glass cover plate 1, and the other end is attached to the ITO waterproof film 3.

[0029] The manufacturing process of electronic paper rheostats includes the following steps:

[0030] S1. Laser engrave the electronic ink film 2 and ITO waterproof film 3 into a drawing (e.g., Figure 2 (as shown) shape;

[0031] S2. Clean the electronic paper capsule on the first conductive part 21, retaining the ITO layer;

[0032] S3. Attach the electronic ink film 2 to the top of the glass cover plate 1;

[0033] S4. After attaching the ITO waterproof membrane 3 onto the electronic ink film 2, perform overall debubbling.

[0034] S5. After degassing, a sealing layer is applied around the electronic ink film 2 to achieve waterproofing, thus completing the manufacturing process.

[0035] In summary, this utility model embodiment provides an electronic paper rheotropic screen. A portion of the electronic ink film 2 extends along the first direction X to the outside of the glass cover plate 1 to form a first conductive portion 21, and a portion of the ITO waterproof film 3 extends along the first direction X to the outside of the glass cover plate 1 to form a second conductive portion 31. The first conductive portion 21 and the second conductive portion 31 are electrically connected to the external motherboard, eliminating the need for conductive adhesive 4 and FPC connector 5. This increases the display area of ​​the electronic paper rheotropic screen, simplifies the production process, reduces production costs, and facilitates mass production.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An electronic paper rheostat, having a first direction and a second direction intersecting in pairs, characterized in that: It includes, from bottom to top, a glass cover, an electronic ink film, and an ITO waterproof membrane; A portion of the electronic ink film extends along the first direction to the outside of the glass cover plate and forms a first conductive portion; a portion of the ITO waterproof film extends along the first direction to the outside of the glass cover plate and forms a second conductive portion; the first conductive portion and the second conductive portion are used for electrical connection with an external motherboard.

2. The electronic paper rheostat as described in claim 1, characterized in that: The first conductive part and the second conductive part are spaced apart in the second direction, and the gap W between the first conductive part and the second conductive part is greater than or equal to 1 mm.

3. The electronic paper rheostat as described in claim 1, characterized in that: In the first direction, the length L1 of the first conductive portion extending beyond the glass cover is greater than or equal to 5 mm.

4. The electronic paper rheostat as described in claim 1, characterized in that: The length L2 of the first conductive part in the second direction is greater than 1 mm.

5. The electronic paper rheostat as described in claim 1, characterized in that: The distance d between the edge of the electronic ink film and the edge of the ITO waterproof film is 1.2mm-2mm.

6. The electronic paper rheostat as described in claim 1, characterized in that: The electronic ink film is surrounded by a sealant layer, one end of which is attached to the glass cover plate and the other end is attached to the ITO waterproof film.

7. The electronic paper rheostat as described in claim 1, characterized in that: In the first direction, the length L3 of the second conductive portion extending beyond the glass cover is greater than or equal to 5 mm.

8. The electronic paper rheostat as described in claim 1, characterized in that: The length L4 of the second conductive part in the second direction is greater than 1 mm.

9. The electronic paper rheostat as described in claim 1, characterized in that: The first conductive part and the second conductive part are rectangular in shape on the horizontal plane.

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