CN215297887U

CN215297887U - Edge packaging structure of electronic paper

Info

Publication number: CN215297887U
Application number: CN202121306751.8U
Authority: CN
Inventors: 肖忠平
Original assignee: Jiangxi Xingtai Technology Co Ltd
Current assignee: Jiangxi Xingtai Technology Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-12-24
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses an edge packaging structure of electronic paper, including base plate, electronic paper layer and protection film, one side of electronic paper layer is provided with outstanding ear, just be provided with in the ear and be used for connecting the ear hole of electronic paper layer and base plate be provided with the glue groove between ear hole and the electronic paper layer all set up the visible area of banding glue in order to encapsulate electronic paper in the edge of electronic paper layer, the edge of ear and the glue groove. The utility model discloses can encapsulate the visual zone of electronic paper, prevent that the gas in the earhole from getting into the visual zone the inside, avoid the visual zone bad to appear, improve the quality of electronic paper, prolong the life of electronic paper.

Description

Edge packaging structure of electronic paper

Technical Field

The utility model relates to an electronic paper technical field specifically is an edge packaging structure who relates to electronic paper.

Background

In the era of internet of things in which the internet enters into connection with things, electronic paper becomes an important display medium for information exchange and communication. The electronic paper has the image storage and display characteristics of paper-like due to passive light emission, and is widely applied to the paper-like display fields of electronic books, electronic shelf labels and the like by replacing a single image with ultra-low power consumption. In the electronic paper market, the electrophoretic electronic paper occupies a dominant position. The principle of the electrophoresis type electronic paper is as follows: under the action of an electric field, the electrophoretic particles move in the electrophoretic fluid, and the particles are charged or individual particles are not charged after surface treatment, so that various particles form a desired arrangement to display images and characters.

As shown in fig. 1, a general electronic paper structure includes a substrate, an electronic paper layer and a protection film, and a protruding ear portion is generally disposed on one side of the electronic paper layer, an ear hole for connecting the electronic paper layer and the substrate is disposed on the ear portion, and a silver paste at a midpoint of the ear hole conducts an ITO layer on the substrate and an ITO layer on the electronic paper, because the ear hole is cleaned, alcohol is needed to be used for wiping, and gas is present in the ear hole, after the electronic paper layer is attached to the substrate, the gas is sealed, but in a high-temperature environment, the gas can slowly invade a visible area of the electronic paper under thermal expansion and cold contraction, thereby causing the phenomena of water inflow, bulging, corrosion of substrate via holes and the like of the electronic paper, and seriously affecting the quality and the service life of the electronic paper.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the edge packaging structure of the electronic paper is provided to package the visible area of the electronic paper, prevent the gas in the ear hole from entering the visible area, avoid the defect of the visible area, improve the quality of the electronic paper and prolong the service life of the electronic paper.

The specific technical scheme is as follows:

the utility model provides an edge packaging structure of electronic paper, includes base plate, electron paper layer and protection film, one side of electron paper layer is provided with outstanding ear, just be provided with in the ear and be used for connecting the ear hole of electron paper layer and base plate be provided with the glue groove between ear hole and the electron paper layer all set up the visible area of banding glue in order to encapsulate the electronic paper in the edge of electron paper layer, the edge of ear and the glue groove.

Compared with the prior art, the utility model has the advantages of it is following: because gaseous production in the earhole, invade the visual area of electronic paper after avoiding gaseous expend with heat and contract with cold, the utility model discloses through setting up the glue groove between earhole and electronic paper layer, glue the visual area of gluing in order to encapsulate electronic paper at the edge of glue groove, electronic paper layer and the edge filling joint limit of ear again, effectively avoided the harmfulness that leads to behind the gaseous invasion visual area, improved the quality of electronic paper, prolonged the life of electronic paper greatly.

Preferably, the electronic paper layer comprises an OCA layer, a PET layer, an ITO layer, an electronic ink layer and an adhesive layer, which are sequentially disposed. The electronic paper layer is bonded on the substrate through the adhesive layer.

As an improvement of the present invention, the glue groove passes through the electronic ink layer and the viscose layer. And semi-cutting the electronic ink layer and the adhesive layer which penetrate through the electronic paper layer through a laser machine to form the glue tank. Because the bubbles are generated between the adhesive layer and the substrate and cannot invade the ITO layer, the glue groove only needs to penetrate through the electronic ink layer and the adhesive layer, and the edge sealing glue is filled in the glue groove to separate gas.

As an improvement of the present invention, the ear hole passes through the electronic ink layer and the adhesive layer. Silver paste is dotted in the ear hole to conduct the ITO layer in the electronic paper layer and the ITO layer on the substrate.

As another improvement of the present invention, the glue groove is a through groove with two open ends and connected to the edge of the electronic paper layer. Through the design, the edge sealing glue can conveniently flow into the glue groove along the edge of the electronic paper layer for packaging.

And then, the glue groove comprises a first groove wall and a second groove wall, the first groove wall is an arc-shaped groove arm and is bent towards one side close to the electronic paper layer, and the second groove wall is a linear groove wall. In order to enable the edge sealing glue to flow into the glue groove more smoothly, the glue groove is designed to comprise a first groove wall and a second groove wall, the first groove wall is close to the ear hole, the first groove wall is an arc-shaped groove and is bent towards one side close to the electronic paper layer, so that the edge sealing glue can flow into the glue groove along the edge of the electronic paper layer, the first groove wall plays a role in guiding, and meanwhile, the first groove wall is designed to be arc-shaped, so that the area of the glue groove can be increased compared with a linear groove wall, and the packaging effect is firmer; the second slot wall is a straight line slot wall, and the second slot wall is close to the rectangular visible area, so that the second slot wall is designed to be straight line, and the shell outside the visible area can be conveniently packaged.

Drawings

FIG. 1 is a schematic diagram of a prior art electronic paper structure;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic structural diagram of the electronic paper layer in the present invention;

fig. 5 is a use state diagram after the packaging of the present invention is completed.

In the drawings, 1, a substrate; 2. an electronic paper layer; 2.1, an OCA layer; 2.2, PET layer; 2.3, an ITO layer; 2.4, an electronic ink layer; 2.5, an adhesive layer; 3. an ear portion; 3.1, earhole; 4. a protective film; 5. a glue tank; 5.1, a first groove wall; 5.2, a second groove wall; 6. a visible area; 7. and (7) edge sealing glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 2, the present invention shows an edge packaging structure of electronic paper, which includes a substrate 1, an electronic paper layer 2 and a protection film 4. The concrete structure is as follows:

the substrate 1 is a TFT substrate, i.e., a glass substrate, and is disposed at the bottom, on which an electronic paper layer 2 and a protective film 4 are disposed.

Electronic paper layer 2 is including OCA layer 2.1, PET layer 2.2, ITO layer 2.3, electronic ink layer 2.4 and the viscose layer 2.5 that sets gradually, as figure 4, wherein viscose layer 2.5 is with 1 fixed adhesion of base plate, and wherein one side of electronic paper layer 2 has set up two outstanding ears 3 moreover to two ears 3 are the both ends that set up in one side, and the symmetry sets up. An ear hole 3.1 for connecting the electronic paper layer 2 and the substrate 1 is arranged on the ear portion 3, the ear hole 3.1 penetrates through the electronic ink layer 2.4 and the viscose layer 2.5, and silver paste is arranged in the ear hole 3.1 to conduct the ITO layer 2.3 in the electronic paper layer 2 and the ITO layer in the substrate 1.

The protection film 4 is a PS film for protecting the electronic paper layer 2, so that the electronic paper layer 2 is completely covered with the PS film after the electronic paper layer 2 is mounted on the substrate 1, thereby protecting the electronic paper layer 2.

As shown in fig. 2, the area outlined by the thick line frame is the visible area 6 of the electronic paper. A glue groove 5 is arranged between the ear hole 3.1 and the visible area 6 of the electronic paper layer 2, as shown in fig. 3, the glue groove 5 is a through groove with two open ends and the open end is communicated with the edge of the electronic paper layer 2. During the encapsulation, through the edge sealing glue 7 glue in the edge of electron paper layer 2, the edge of ear 3 and glue groove 5 can, realize the encapsulation to electron paper edge, avoid the bubble to invade visual area 6. Because the glue groove 5 is a through groove, the edge sealing glue 7 can freely flow into the glue groove 5. In order to enable the edge sealing glue 7 to flow into the glue groove 5 more smoothly, the glue groove 5 is designed to comprise a first groove wall 5.1 and a second groove wall 5.2, the first groove wall 5.1 is close to the ear hole 3.1, and the first groove wall 5.1 is an arc-shaped groove and is bent towards one side close to the electronic paper layer 2, so that the edge sealing glue 7 can flow into the glue groove 5 along the edge of the electronic paper layer 2, the first groove wall 5.1 plays a role in guiding flow, and meanwhile, the first groove wall 5.1 is designed to be arc-shaped, so that the area of the glue groove 5 can be increased compared with a straight-line-shaped groove wall, and the packaging effect is firmer; the second slot wall 5.2 is a straight slot wall, and since the second slot wall 5.2 is close to the rectangular visible area 6, the second slot wall 5.2 is designed to be straight, so as to facilitate the package of the housing outside the visible area 6. In actual manufacturing, the outside of the visible area 6 needs to be encapsulated by a shell, so that only the visible area is exposed, and the rest part is invisible, so that the edge sealing glue 7 does not influence the beauty of the electronic paper.

In the manufacturing process of the electronic paper, after the substrate 1 is adhered to the electronic paper layer 2, defoaming treatment needs to be performed to ensure that the visible area 6 of the electronic paper is bubble-free, but in the later process of setting and cleaning the ear hole 3.1, gas is generated in the ear hole 3.1, and in order to avoid the gas from invading the visible area 6, the invasion of the gas between the ear part 3 and the electronic paper layer 2 needs to be blocked. In this embodiment, the air barrier is performed by providing the glue groove 5 between the ear portion 3 and the electronic paper layer 2. The glue groove 5 penetrates through the electronic ink layer 2.4 and the glue layer 2.5, and bubbles are generated between the glue layer 2.5 at the ear hole 3.1 and the substrate 1 and cannot invade the ITO layer 2.3 in the electronic paper layer 2, so when the glue groove 5 is cut by a laser machine, only the bubbles half-cut through the electronic ink layer 2.4 and the glue layer 2.5 to form the glue groove 5, and then glue is filled in the edges of the electronic paper layer 2, the edges of the ears 3 and the glue groove 5 to encapsulate the visible area 6 of the electronic paper, so that the gas can be prevented from invading the visible area 6, the quality of the electronic paper is effectively improved, and the service life of the electronic paper is greatly prolonged, as shown in figure 5.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear, inner and outer … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. The utility model provides an edge packaging structure of electronic paper, includes base plate (1), electronic paper layer (2) and protection film (4), one side of electronic paper layer (2) is provided with outstanding ear (3), just be provided with on ear (3) and be used for connecting ear hole (3.1) of electronic paper layer (2) and base plate (1), its characterized in that: be provided with glue groove (5) between ear hole (3.1) and electron paper layer (2) all set up in the edge of electron paper layer (2), the edge of ear (3) and glue groove (5) and seal the visual area (6) of limit glue (7) in order to encapsulate the electron paper.

2. The edge sealing structure of electronic paper according to claim 1, wherein the electronic paper layer (2) comprises an OCA layer (2.1), a PET layer (2.2), an ITO layer (2.3), an electronic ink layer (2.4) and an adhesive layer (2.5) which are sequentially disposed.

3. The edge sealing structure of electronic paper according to claim 2, wherein the glue groove (5) penetrates the electronic ink layer (2.4) and the adhesive layer (2.5).

4. The edge sealing structure of electronic paper according to claim 2, wherein the ear hole (3.1) penetrates through the electronic ink layer (2.4) and the adhesive layer (2.5).

5. The edge sealing structure of electronic paper according to claim 1, wherein the glue groove (5) is a through groove with two open ends and communicating with the edge of the electronic paper layer (2).

6. The edge sealing structure of electronic paper according to claim 1, wherein the glue groove (5) comprises a first groove wall (5.1) and a second groove wall (5.2), the first groove wall (5.1) is an arc-shaped groove arm and is curved toward a side close to the electronic paper layer (2), and the second groove wall (5.3) is a straight groove wall.