CN212965699U - Conductive structure and electronic paper device - Google Patents
Conductive structure and electronic paper device Download PDFInfo
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- CN212965699U CN212965699U CN202021501053.9U CN202021501053U CN212965699U CN 212965699 U CN212965699 U CN 212965699U CN 202021501053 U CN202021501053 U CN 202021501053U CN 212965699 U CN212965699 U CN 212965699U
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Abstract
The utility model discloses a conducting structure and electronic paper device. The utility model discloses a conductive structure. The conductive structure can be applied to an electronic paper device, the electronic paper device comprises a driving substrate and an electronic paper film, the electronic paper film is arranged on the driving substrate and comprises a light-transmitting substrate, a common electrode layer and a display dielectric layer, the light-transmitting substrate is arranged opposite to the driving substrate, the common electrode layer is arranged on one side, facing the driving substrate, of the light-transmitting substrate, the display dielectric layer is arranged between the common electrode layer and the driving substrate and comprises a through hole, and the conductive structure is arranged in the through hole and comprises a conductive piece and at least one spacer. The conductive parts are respectively electrically connected with the driving substrate and the common electrode layer. The spacers are arranged on the conductive members and respectively contact the driving substrate and the common electrode layer. The utility model discloses still disclose an electronic paper device that has this conductive structure.
Description
Technical Field
The utility model relates to a conducting structure and applied this conducting structure's electronic paper device can solve and show unusual problem.
Background
With the progress of science and technology, display devices as the communication interface between human and machine are also continuously advanced and are developed in a diversified way to meet the needs of human beings. Among them, the liquid crystal display device has been widely used in various electronic products instead of the cold cathode ray tube display device due to its advantages of low power consumption, low heat generation, light weight, non-radiation property, and the like, for example: home televisions, notebook computers, desktop screens, and the like.
However, both the cold cathode ray tube display device and the liquid crystal display device still have the disadvantage of requiring continuous power supply, that is, the display device displays images while still being matched with the continuous consumption of power. Therefore, a bi-stable electronic paper display device is produced accordingly. When the bistable electronic paper device displays images or pictures, no additional power supply is needed to be input, the images or pictures are always kept, and the additional power supply is only needed to be input when the electronic paper device changes to another state or displays the pictures, so that the characteristic of low power consumption and memorability is one of the first choice of the next generation of display devices.
Generally, an electronic paper device includes an electronic paper film and a driving substrate, and the driving substrate drives the electronic paper film to display an image. In the manufacturing process of the electronic paper device, conductive adhesive (dispensing) is required to be arranged on the driving substrate, and the holes of the electronic paper film are aligned with the conductive adhesive, so that the electronic paper film is correspondingly attached to the driving substrate, the driving substrate can transmit the common voltage to the common electrode layer of the electronic paper film through the conductive adhesive in the holes, and the electronic paper film can generate cross voltage to drive the display medium.
However, after the electronic paper film is disposed on the driving substrate, a Lamination (Lamination) process is performed to make the electronic paper film closely adhere to the driving substrate. However, in the lamination process, when the roller passes over the hole, the film layer (e.g., the common electrode layer) of the electronic paper film on the hole is recessed toward the hole, so that the conductive adhesive in the through hole is also pressed and moved outward; after the gyro wheel passes through the hole, the conducting resin in the hole can be because of the resilience of rete, leads to the conducting resin to be stretched toward the direction of common electrode layer because of the adhesive force between rete and the conducting resin for the conducting resin produces deformation (presents the narrow shape of nevertheless upper and lower both sides width in the middle of narrow), and then makes the impedance grow of conducting resin and makes common voltage produce the pressure drop (common voltage is inaccurate), thereby leads to showing unusually.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing, an object of the present invention is to provide a conductive structure and an electronic paper device using the same, which can solve the problem of abnormal display caused by a voltage drop of a common voltage.
To achieve the above object, according to the present invention, a conductive structure can be applied to an electronic paper device, the electronic paper device includes a driving substrate and an electronic paper film, the electronic paper film is disposed on the driving substrate, and includes a transparent substrate, a common electrode layer and a display medium layer, the transparent substrate is disposed opposite to the driving substrate, the common electrode layer is disposed on one side of the transparent substrate facing the driving substrate, the display medium layer is disposed between the common electrode layer and the driving substrate, and includes a through hole, the conductive structure is disposed in the through hole, and includes a conductive member and at least one spacer. The conductive parts are respectively electrically connected with the driving substrate and the common electrode layer. The at least one spacer is arranged on the conductive member and contacts the driving substrate and the common electrode layer respectively.
To achieve the above object, an electronic paper device according to the present invention includes a driving substrate, an electronic paper film, and a conductive structure. The electronic paper film is arranged on the driving substrate and comprises a light-transmitting substrate, a common electrode layer and a display medium layer, wherein the light-transmitting substrate is arranged opposite to the driving substrate, the common electrode layer is arranged on one side, facing the driving substrate, of the light-transmitting substrate, and the display medium layer is arranged between the common electrode layer and the driving substrate and comprises a through hole. The conductive structure is arranged in the through hole and comprises a conductive piece and at least one spacer, the conductive piece is respectively electrically connected with the driving substrate and the common electrode layer, the at least one spacer is arranged in the conductive piece, and the at least one spacer is respectively contacted with the driving substrate and the common electrode layer.
Bear the upper the utility model discloses an among conducting structure and the electronic paper device of using this conducting structure, set up in the through-hole of the display medium layer of electronic paper membrane through conducting structure, make electrically conductive and common electrode layer electric connection of drive substrate accessible conducting structure, and make the interior spacer of conducting structure can contact respectively (top) the structural design of drive substrate and common electrode layer, make in the manufacturing process of lamination, with the help of the supporting role of spacer, can make the rete on the through-hole can not be sunken, make electrically conductive also can not produce deformation and make the impedance grow. Therefore, the display abnormality problem caused by the voltage drop of the common voltage can be solved.
Drawings
Fig. 1A is a schematic view of an electronic paper apparatus according to an embodiment of the present invention.
FIG. 1B is a cross-sectional view of the electronic paper device of FIG. 1A along section line A-A.
Fig. 2 to 4 are schematic views of electronic paper devices according to different embodiments of the present invention.
Detailed Description
A conductive structure and an electronic paper device using the same according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, in which like elements are described with like reference numerals. The figures below are schematic only and do not represent true dimensions and proportions.
Fig. 1A is a schematic view of an electronic paper apparatus according to an embodiment of the present invention, and fig. 1B is a schematic cross-sectional view of the electronic paper apparatus of fig. 1A along a section line a-a.
As shown in fig. 1A and 1B, the electronic paper device 1 includes a driving substrate 11 and an electronic paper film 12, wherein the driving substrate 11 is electrically connected to the electronic paper film 12, and can drive the electronic paper film 12 to display an image.
The driving substrate 11 may include a plurality of pixels, a plurality of scan lines, and a plurality of data lines, which are disposed on a base material. The pixels can be arranged in a matrix of rows and columns, and the data lines and the scanning lines are arranged in a staggered manner to define the pixels. Each pixel may have at least one switch, such as a Thin Film Transistor (TFT), and the driving substrate 11 may be an Active Matrix (Active Matrix) driving thin film transistor substrate to control whether an electric field is formed in each pixel. The substrate of the driving substrate 11 may be a glass substrate, a plastic substrate, or a flexible substrate, such as but not limited to Polyimide (PI), according to the product requirements.
The electronic paper film 12 is a bistable display, and thus has advantages of power saving characteristics and a wide viewing angle. The electronic paper film 12 may be Microcapsule (Microcapsule) type electronic paper, Microcup (Microcup) type electronic paper, or cholesterol Liquid Crystal (cholesterol Crystal) electronic paper, but is not limited thereto. When the electronic paper film 12 is a microcapsule type or a microcup type electronic paper, the display medium thereof may be an electrophoretic material; when the electronic paper film 12 is a cholesteric liquid crystal electronic paper, the display medium may be cholesteric liquid crystal molecules. When the electronic paper film 12 is other types of bistable displays, the display medium may be other types of bistable substances, which is not limited by the present invention.
In the present embodiment, the electronic paper film 12 includes a light-transmitting substrate 121, a common electrode layer 122, and a display medium layer 123. The transparent substrate 121 is disposed opposite to the driving substrate 11. The optically transmissive substrate 121 may be a plastic substrate, the material of which may be, for example, but not limited to, Polyester (PET). The common electrode layer 122 is disposed on a side of the transparent substrate 121 facing the driving substrate 11, and the display medium layer 123 is disposed between the common electrode layer 122 and the driving substrate 11. Here, the common electrode layer 122 is formed on the entire surface of the transparent substrate 121 facing the display medium layer 123, so as to form an electric field together with the pixel electrode of each pixel of the driving substrate 11 to control the display medium corresponding to each pixel to operate, so that the electronic paper film 12 can form an image.
In some embodiments, when the e-paper film 12 is a microcapsule type or a cup type e-paper, the display medium layer 123 may include an electrophoretic material, the electrophoretic material includes a plurality of charged light-colored pigment particles and a dark-colored medium solution, the pigment particles and the medium solution are respectively contained in a plurality of microcapsules, and the microcapsules may be bonded together by an adhesive; alternatively, the contents of the electrophoretic material may also be a combination of dark colored pigment particles and a light colored medium solution; alternatively, the content of the electrophoretic material may be a combination of pigment particles of a plurality of colors and a light color medium solution, which is not limited by the present invention.
When the scan driver turns on the scan lines in sequence, the data driver can transmit the data voltage signal corresponding to each row of pixels to the pixel electrodes of the pixels via the data lines, so that the pixel electrodes of the pixels and the common electrode layer 122 of the electronic paper film 12 can form an electric field, and the charged pigment particles in the electrophoretic material can move in the medium solution. When the external light passes through the transparent substrate 121 and enters the electronic paper film 12, the external light is reflected by the charged pigment particles, so that human eyes can see the light reflected by the charged pigment particles in the background of the medium solution, thereby forming a development picture.
In order to enable the driving substrate 11 to transmit the common voltage to the common electrode layer 122, the display medium layer 123 of the present embodiment may include at least one through hole h, and the conductive structure 13 is correspondingly disposed in the through hole h. As shown in fig. 1A, the electronic paper device 1 of the present embodiment is, for example, but not limited to, two through holes h. Of course, the number of the through holes h is not limited. When the number of the through holes h is multiple, each through hole h can be correspondingly provided with one conductive structure 13; alternatively, only a part of the through holes h are correspondingly provided with the conductive structures 13.
Referring to fig. 1B again, the conductive structure 13 is disposed in the through hole h, such that the driving substrate 11 can be electrically connected to the common electrode layer 122 through the conductive structure 13, and the common voltage can be transmitted to the common electrode layer 122 through the conductive structure 13. In the present embodiment, the through hole h has a sidewall h1, and the conductive structure 13 is not in contact with the sidewall h 1. Specifically, in the process of disposing the conductive structure 13 in the via hole h, the conductive structure 13 does not fill the entire via hole h but contacts the sidewall h1 because: when the conductive structure 13 fills the entire through hole h and contacts the sidewall h1, moisture can penetrate into the through hole h (and the electronic paper film 12) through the conductive structure 13, which affects the normal operation of the electronic paper film 12.
The material of the conductive member 131 may include, for example, silver paste, solder paste, or anisotropic conductive paste (ACF), or a combination thereof. The material of the spacer 132 may include a metal material or a non-metal material, such as, but not limited to, photosensitive photoresist materials such as resins, silicates, or glass fibers, and the like. In some embodiments, the Spacer 132 may be the same material as a Spacer (Spacer) disposed between a thin film transistor substrate (TFT substrate) and a color filter substrate (CF substrate) in a liquid crystal display panel.
In some embodiments, a plurality of spacers 132 may be mixed in the uncured conductive member 131 (e.g., conductive silver paste), and the uncured conductive member 131 with the spacers 132 may be disposed in the via hole h (i.e., dispensing); alternatively, the spacer 132 may be disposed in the through hole h first, and then the uncured conductive member 131 may be disposed in the through hole h; alternatively, uncured conductive device 131 may be disposed in through hole h, and then spacer 132 may be disposed in uncured conductive device 131, and cured to obtain conductive structure 13 including spacer 132 and conductive device 131.
In addition, the electronic paper film 12 of the present embodiment further includes an adhesive layer 124, wherein the adhesive layer 124 is disposed between the display medium layer 123 and the driving substrate 11 (the adhesive layer 124 has another through hole corresponding to the through hole h). The electronic paper film 12 is adhered to the upper surface of the driving substrate 11 by an adhesive layer 124. The adhesive layer 124 may be an electronic ink glue layer, and the material thereof may be, for example, but not limited to, a heat-curable glue.
In the electronic paper device 1 of the present embodiment, the conductive structure 13 is disposed in the through hole h of the display medium layer 123 of the electronic paper film 12, so that the driving substrate 11 can be electrically connected to the common electrode layer 122 through the conductive member 131 of the conductive structure 13, and the spacers 132 in the conductive structure 13 can be respectively contacted (abutted) to the driving substrate 11 and the common electrode layer 122, so that the transparent substrate 121 and the common electrode layer 122 above the through hole h are not recessed by the supporting function of the spacers 132 when the roller passes through the through hole h in the manufacturing process of lamination, and the conductive member 131 is not deformed to increase the impedance. Therefore, when the driving substrate 11 transmits the common voltage to the common electrode layer 122 through the conductive member 131, no voltage drop occurs, and thus the abnormal display problem caused by the voltage drop of the common voltage can be solved.
Fig. 2 to fig. 4 are schematic views of electronic paper devices according to different embodiments of the present invention.
As shown in fig. 2, the electronic paper device 1a of the present embodiment is substantially the same as the electronic paper device 1 of the previous embodiment in terms of the component composition and the connection relationship of the components. The difference is that in the conductive structure 13 of the electronic paper device 1a of the present embodiment, the number of the spacers 132 is plural, for example, but not limited to 3.
As shown in fig. 3, the electronic paper device 1b of the present embodiment has substantially the same component composition and connection relationship between the components as the electronic paper device 1 (or 1a) of the previous embodiment. The difference is that the electronic paper device 1b of the present embodiment further includes a protective film 14, and the protective film 14 is disposed on the surface of the electronic paper film 12 away from the driving substrate 11. Here, the protection film 14 is attached to the upper surface of the transparent substrate 121 of the electronic paper film 12 to protect the electronic paper device 1b from external foreign substances or moisture. In some embodiments, the protective film 14 may also improve the optical characteristics of the electronic paper device 1b, such as improving contrast.
In addition, it is noted that fig. 4 does not show the conductive structure 13 located in the electronic paper film 12. As shown in fig. 4, the electronic paper device 1c of the present embodiment is substantially the same as the electronic paper device 1b of the previous embodiment in terms of the component composition and the connection relationship between the components. The difference is that the electronic paper device 1c of the present embodiment further includes a sealing member 15, the sealing member 15 is disposed on the driving substrate 11, and the sealing member 15 is disposed at the periphery of the electronic paper film 12 and the protective film 14. Here, the seal 15 is also provided in the gap between the protective film 14 and the drive substrate 11. The sealing member 15 may be, for example, a sealant, which can prevent moisture from entering the electronic paper film 12 from the side. The degree of moisture entering the electronic paper film 12 can be controlled and isolated by the width change of the sealing element 15 (frame glue), and the effect of moisture isolation is better as the transverse width of the sealing element is larger.
In summary, the utility model discloses an among conducting structure and the electronic paper device of using this conducting structure, set up in the through-hole of the display medium layer of electronic paper membrane through conducting structure, make electrically conductive and common electrode layer electric connection of drive substrate accessible conducting structure, and make the interior spacer of conducting structure can contact respectively (top) the structural design of drive substrate and common electrode layer, make in the manufacturing process of lamination, with the help of the supporting role of spacer, can make the rete on the through-hole can not cave in, make electrically conductive also can not produce deformation and make the impedance grow. Therefore, the display abnormality problem caused by the voltage drop of the common voltage can be solved.
The foregoing is by way of example only, and not limiting. It is intended that all equivalent modifications or variations not departing from the spirit and scope of the present invention shall be included in the appended claims.
Claims (12)
1. The utility model provides a conducting structure, its characterized in that, it is applied to the electronic paper device, the electronic paper device includes drive substrate and electronic paper membrane, the electronic paper membrane sets up on the drive substrate to including printing opacity substrate, common electrode layer and display medium layer, printing opacity substrate with the drive substrate is relative and establishes, common electrode layer sets up printing opacity substrate faces one side of drive substrate, the display medium layer sets up common electrode layer with between the drive substrate, and include the through-hole, conducting structure sets up in the through-hole, and include:
the conductive parts are respectively electrically connected with the driving substrate and the common electrode layer; and
at least one spacer disposed on the conductive member, and contacting the driving substrate and the common electrode layer, respectively.
2. The structure of claim 1 wherein said conductive member covers at least a portion of a surface of said spacer.
3. The conductive structure of claim 1, wherein said via has a sidewall, said conductive structure being free of contact with said sidewall.
4. An electronic paper device, comprising:
a drive substrate;
the electronic paper film is arranged on the driving substrate and comprises a light-transmitting substrate, a common electrode layer and a display medium layer, wherein the light-transmitting substrate is arranged opposite to the driving substrate, the common electrode layer is arranged on one side, facing the driving substrate, of the light-transmitting substrate, and the display medium layer is arranged between the common electrode layer and the driving substrate and comprises a through hole; and
and the conductive structure is arranged in the through hole and comprises a conductive piece and at least one spacer, the conductive piece is respectively and electrically connected with the driving substrate and the common electrode layer, the at least one spacer is arranged in the conductive piece, and the at least one spacer is respectively contacted with the driving substrate and the common electrode layer.
5. The electronic paper device of claim 4, wherein the driving substrate is an active matrix driving thin film transistor substrate.
6. The electronic paper device of claim 4, wherein the electronic paper film is a microcapsule electronic paper, a micro-cup electronic paper, or a cholesteric liquid crystal electronic paper.
7. The device of claim 4, wherein the conductive member covers at least a portion of a surface of the spacer.
8. The e-paper device of claim 4, wherein the via has a sidewall, and the conductive structure is not in contact with the sidewall.
9. The e-paper device of claim 4, wherein the spacer is circular, elliptical, or polygonal in shape, or a combination thereof.
10. The electronic paper device of claim 4, wherein the electronic paper film further comprises an adhesive layer disposed between the display medium layer and the driving substrate.
11. The electronic paper device of claim 4, further comprising:
and the protective film is arranged on the surface of the electronic paper film far away from the driving substrate.
12. The electronic paper device of claim 11, further comprising:
and the sealing element is arranged on the driving substrate and is arranged on the peripheries of the electronic paper film and the protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021501053.9U CN212965699U (en) | 2020-07-27 | 2020-07-27 | Conductive structure and electronic paper device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021501053.9U CN212965699U (en) | 2020-07-27 | 2020-07-27 | Conductive structure and electronic paper device |
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| CN212965699U true CN212965699U (en) | 2021-04-13 |
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| CN202021501053.9U Active CN212965699U (en) | 2020-07-27 | 2020-07-27 | Conductive structure and electronic paper device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376921A (en) * | 2021-06-11 | 2021-09-10 | 江西兴泰科技有限公司 | Edge packaging structure of electronic paper |
| CN113448134A (en) * | 2021-06-11 | 2021-09-28 | 江西兴泰科技有限公司 | Method for manufacturing electronic paper module |
| WO2024077747A1 (en) * | 2022-10-09 | 2024-04-18 | 汉朔科技股份有限公司 | Electronic-paper screen with display region having recess |
-
2020
- 2020-07-27 CN CN202021501053.9U patent/CN212965699U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376921A (en) * | 2021-06-11 | 2021-09-10 | 江西兴泰科技有限公司 | Edge packaging structure of electronic paper |
| CN113448134A (en) * | 2021-06-11 | 2021-09-28 | 江西兴泰科技有限公司 | Method for manufacturing electronic paper module |
| CN113376921B (en) * | 2021-06-11 | 2024-04-05 | 江西兴泰科技股份有限公司 | Edge packaging structure of electronic paper |
| CN113448134B (en) * | 2021-06-11 | 2024-05-24 | 江西兴泰科技股份有限公司 | Electronic paper module manufacturing method |
| WO2024077747A1 (en) * | 2022-10-09 | 2024-04-18 | 汉朔科技股份有限公司 | Electronic-paper screen with display region having recess |
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