CN210955906U - Flexible bending structural part, display device and mobile terminal - Google Patents
Flexible bending structural part, display device and mobile terminal Download PDFInfo
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- CN210955906U CN210955906U CN202020007090.8U CN202020007090U CN210955906U CN 210955906 U CN210955906 U CN 210955906U CN 202020007090 U CN202020007090 U CN 202020007090U CN 210955906 U CN210955906 U CN 210955906U
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Abstract
The utility model discloses a flexible structure of buckling, display device and mobile terminal, flexible structure of buckling has functional area and the region of buckling, and the regional distribution of buckling has the line of buckling, and flexible structure of buckling includes: the flexible device comprises at least two structural layers which are arranged in a stacked mode; the bonding glue film, two adjacent structural layers bond through at least one deck bonding glue film, and the bonding glue film includes the combined material layer of bonding glue and glue containing layer, and the glue containing layer has a plurality of interval distribution's glue containing through-holes, and the glue containing through-hole that corresponds bending region extends along the line of buckling, and glue containing layer in the bonding glue film imbeds in the bonding glue and at least part fills glue containing through-hole. Can provide sufficient deformation space for the bonding glue when buckling, avoid the bonding glue to take place to pile up to the shear stress that produces when reducing to buckle, and then reduce the risk that two adjacent structural layers separate.
Description
Technical Field
The utility model belongs to the technical field of the electronic product, especially, relate to a flexible structure, display device and mobile terminal of buckling.
Background
With the gradual development of electronic technology, people have higher and higher requirements on the foldability of electronic equipment such as mobile phones and computers, and therefore, it is a hot point of research on how to ensure that a display device in the electronic equipment is not damaged when the electronic equipment is bent.
In the display panel industry, in the process of bending a flexible screen body (solid state bending or static state bending), due to different bending degrees of different laminated structures, a separation phenomenon easily occurs at an interface where the laminated structure is in contact with an adhesive layer. For example, in the aspect of solid-state bending, in the laminated structure of the screen module, the touch layer is connected with the contact surface of the polarizer through the pressure-sensitive adhesive, and the contact layer is separated due to the difference of bending degrees of the upper structure and the lower structure of the pressure-sensitive adhesive layer, so that the risk of failure of the screen package is caused.
Therefore, a new flexible bending structure, a display device and a mobile terminal are needed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a flexible structure of buckling, display device and mobile terminal avoids the adhesive linkage to take place to pile up to the shear stress that produces when reducing to buckle, and then reduces the risk that two adjacent structural layers separate.
The embodiment of the utility model provides an aspect provides a flexible structure of buckling has functional area and the region of buckling, the regional distribution of buckling has the line of buckling, the flexible structure of buckling includes: the flexible device comprises at least two structural layers which are arranged in a stacked mode; the bonding layer is layer upon layer, adjacent two the structural layer is through at least one deck the bonding layer bonds layer upon layer, the bonding layer includes the combined material layer of bonding layer and appearance glue film layer, the appearance glue film has a plurality of interval distribution's appearance and glues the through-hole, corresponds bending region the appearance is glued the through-hole and is followed the line of buckling extends, bonding layer is on layer the appearance glue film imbed in the bonding layer just the bonding layer is at least partly filled the appearance is glued the through-hole.
According to the utility model discloses an aspect, the bonding layer upon layer includes first glue film, second glue film and is located first glue film reaches between the second glue film the appearance glue film, first glue film reaches the second glue film is through a plurality of the mutual infiltration of appearance glue through-hole is connected.
According to an aspect of the utility model, the appearance glue film is transparent flexible material layer, first glue film reaches the complete cladding of second glue film the appearance glue film.
According to an aspect of the utility model, it is a plurality of hold gluey through-hole is in hold gluey layer's occupation space ratio is 1:4 ~ 1: 2.
According to the utility model discloses an aspect, it is a plurality of hold gluey through-hole and be the hole that has major axis and minor axis functional area hold gluey through-hole the major axis with the extending direction of line of buckling is predetermined angle and arranges bend region hold gluey through-hole the major axis is followed the extending direction of line of buckling is arranged.
According to the utility model discloses an aspect, it is the rectangular hole to hold gluey through-hole bend the regional distribution and have one hold gluey through-hole, the line of buckling passes hold the minor face central point that glues the through-hole.
According to the utility model discloses an aspect, buckle regional the holding glue through-hole length direction ascending central line with the central line coincidence of holding the glue film.
According to the utility model discloses an aspect buckle regional the minor face width that holds gluey through-hole is greater than functional area hold gluey through-hole's minor face width.
The utility model discloses another aspect still provides a display device, including foretell flexible structure of buckling, wherein, two at least structural layers include one or several kinds in flexible display panel, flexible support piece, touch-control layer and the polaroid.
The present invention also provides a mobile terminal including the display device.
Compared with the prior art, the embodiment of the utility model provides a flexible bending structure spare, functional area has and buckles the region, including flexible device and bonding layer upon layer, and the bonding layer is including the combined material layer of adhesive linkage and appearance glue film layer upon layer, glue the through-hole through the appearance that sets up a plurality of interval distribution at the appearance glue film and hold the partial adhesive linkage layer on layer, and because buckle the regional deformation in-process line of buckling place is the biggest, the line of buckling is followed to the appearance that corresponds the regional area of buckling and is glued the through-hole and extend, can provide sufficient deformation space when buckling for the adhesive linkage, avoid the adhesive linkage to take place to pile up, shear stress who produces when reducing to buckle, and then reduce the risk of two adjacent structural layer separations.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flat state of a flexible bending structural member according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bending state of a flexible bending structural member according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another flat state of a flexible bending structural member according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another bending state of the flexible bending structural member according to an embodiment of the present invention;
fig. 5 is a front view of the glue containing layer provided by the embodiment of the present invention.
In the drawings:
1-a flexible device; 2-an adhesive layer; 21-a first glue layer; 22-a second glue layer; 3-glue containing layer; 31-glue-accommodating through holes; a-a functional region; b-bending area.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For better understanding of the present invention, the following describes in detail a mobile terminal, a display device and a flexible bending structure according to an embodiment of the present invention with reference to fig. 1 to 5.
Fig. 1 is a schematic structural diagram of a flat state of a flexible bending structural member according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a bending state of a flexible bending structural member according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of another flat state of a flexible bending structural member according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of another bending state of the flexible bending structural member according to an embodiment of the present invention; fig. 5 is a front view of the glue containing layer provided by the embodiment of the present invention.
Please refer to fig. 1 to 5, an embodiment of the present invention provides a flexible bending structure, which has a functional area a and a bending area B, wherein the bending area B has bending lines, and the flexible bending structure includes: the flexible device 1 comprises at least two structural layers which are arranged in a stacked mode; the bonding layer is layer by layer, and two adjacent structural layers bond through at least one deck bonding layer by layer, and the bonding layer includes the combined material layer of adhesive linkage 2 and glue containing layer 3 layer by layer, and glue containing layer 3 has a plurality of interval distribution's glue containing through-hole 31, and the glue containing through-hole 31 that corresponds bending region B extends along the bend line, and glue containing layer 3 among the bonding layer by layer imbeds in adhesive linkage 2 and adhesive linkage 2 at least part fills glue containing through-hole 31.
The embodiment of the utility model provides a flexible bending structure holds bonding layer 2 of part layer upon layer through the glue through-hole 31 that holds that sets up a plurality of interval distribution at glue holding layer 3. And because the regional deformation of the in-process bend line place of buckling is the biggest, the glue containing through-hole 31 that corresponds regional B of buckling extends along the bend line, can provide sufficient deformation space for adhesive linkage 2 when buckling, avoids adhesive linkage 2 to take place to pile up to the shear stress that produces when reducing to buckle, and then reduces the risk that two adjacent structural layers separate.
It can be understood that "the glue containing through hole 31 corresponding to the bending region B extends along the bending line" means that the glue containing through hole 31 disposed in the bending region B may be rectangular, elliptical or irregular, when the glue containing through hole 31 is a rectangular through hole, the length direction of the rectangular through hole extends along the bending line, when the glue containing through hole 31 is an elliptical through hole, the major axis direction of the elliptical through hole extends along the bending line, when the glue containing through hole 31 is an irregular through hole, the connection line of two points with the largest relative distance on the irregular through hole extends along the bending line, and can contain a part of the adhesive layer 2 in the bending region B, so as to ensure that the adhesive layer 2 has enough space to deform, and will not accumulate in a certain position, so as to reduce the shear stress generated during bending to the greatest extent, and the glue containing through hole 31 may specifically adopt through holes with shapes of rectangular, circular, elliptical, etc. in the functional region a, and is not particularly limited.
The flexible bending structural member is provided with a functional area A and a bending area B, the bending area B is generally arranged in the middle area of the flexible bending structural member, bending lines are distributed in the bending area B, the flexible bending structural member is bent towards two sides along the bending lines, and the bending lines can be central lines of the bending area B so as to realize symmetrical bending of the central lines of the bending area B and can also be distributed in other positions.
It should be noted that the flexible device 1 includes at least two structural layers that are stacked, where the structural layer specifically refers to a polarizer, a touch layer, a display panel, and other structures that have a certain function, for example, the touch layer is connected with the polarizer through an adhesive layer 2, and the adhesive layer 2 may be a pressure sensitive adhesive.
Referring to fig. 2, in order to connect two adjacent structural layers in the flexible device 1, the two adjacent structural layers are bonded together layer by layer through at least one bonding layer, the bonding layer is a composite material layer including a bonding layer 2 and a glue containing layer 3, the glue containing layer 3 is provided with a plurality of glue containing through holes 31 distributed at intervals, the glue containing layer 3 is embedded in the bonding layer 2, the glue containing through holes 31 are through holes for containing the bonding layer 2, that is, the bonding layer 2 partially extends into the glue containing through holes 31.
In some optional embodiments, the glue containing through holes 31 are all holes having a long axis and a short axis, the long axis of the glue containing through hole 31 in the functional region a is arranged at a predetermined angle with the extending direction of the bending line, and the long axis of the glue containing through hole 31 in the bending region B is arranged along the extending direction of the bending line.
Specifically, the glue receiving through hole 31 may be a rectangular or elliptical hole having a major axis and a minor axis, the long axes of the glue-accommodating through holes 31 in the functional region a are arranged at a predetermined angle, which is generally 90 degrees, with the extending direction of the bending line, that is, the long axis of the glue-receiving through hole 31 in the functional region a is perpendicular to the extending direction of the bending line, and optionally, a plurality of glue-accommodating through holes 31 in the functional area a are arranged side by side along the extending direction of the bending line to form a group, a plurality of groups of glue containing through holes 31 are arranged along the extending direction vertical to the bending line, the adjacent groups of glue containing through holes 31 are arranged in a staggered way in the extending direction of the bending line so as to contain the bonding layers 2 at different positions of the bonding layers, the long axes of the glue containing through holes 31 in the bending region B are arranged along the extending direction of the bending line, and the bonding layer 2 with large deformation degree and located in the bending region B layer by layer is contained.
Optionally, glue containing through hole 31 is a rectangular hole, glue containing through hole 31 is distributed in bending region B, a bending line penetrates through the center point of the short side of glue containing through hole 31, specifically, the bending line coincides with the line of the center points of the two short sides opposite to glue containing through hole 31, when bending, glue containing through hole 31 of bending region B is symmetrically bent about the bending line, and adhesive layer 2 opposite to glue containing through hole 31 can also uniformly stretch into glue containing through hole 31, so that uneven distribution is avoided, and the risk of separation of adjacent structural layers is reduced.
In some optional embodiments, a center line of the glue accommodating through hole 31 in the length direction of the bending region B coincides with a center line of the glue accommodating layer 3, that is, the glue accommodating through hole 31 in the bending region B is located in a middle region of the glue accommodating layer 3, that is, the bending line, the center line of the glue accommodating through hole 31 in the length direction and the center line of the glue accommodating layer 3 are located in the same plane, so that an accommodating effect of the glue accommodating layer 3 on the adhesive layer 2 when the flexible bending structural member is bent is ensured. Optionally, the width of the short side of the glue containing through hole 31 in the bending region B is greater than the width of the short side of the glue containing through hole 31 in the functional region a, so as to ensure that the glue containing through hole 31 in the bending region B has a sufficient accommodating space.
In some optional embodiments, the occupation space ratio of the glue containing through holes 31 in the glue containing layer 3 is 1: 4-1: 2. It should be noted that the occupied space ratio of the glue containing through holes 31 in the glue containing layer 3 specifically refers to a ratio of the sum of the occupied spaces of all the glue containing holes to the occupied space of the whole glue containing layer 3, when the occupied space is large, the structural strength of the glue containing layer 3 is reduced by the influence of the glue containing through holes 31, the glue containing layer is easy to damage, the service life is short, when the occupied space is small, the accommodating effect of the glue containing through holes on the bonding layer 2 is influenced, the glue containing through holes cannot accommodate enough bonding layers 2, and therefore the occupied space ratio is set to be 1: 4-1: 2.
Referring to fig. 3 and 4, in some alternative embodiments, the adhesive layer includes a first adhesive layer 21, a second adhesive layer 22, and an adhesive accommodating layer 3 located between the first adhesive layer 21 and the second adhesive layer 22, and the first adhesive layer 21 and the second adhesive layer 22 are connected to each other by a plurality of adhesive accommodating through holes 31.
It should be noted that, the first adhesive layer 21 and the second adhesive layer 22 are formed by the adhesive layer 2, the glue accommodating layer 3 is disposed between the first adhesive layer 21 and the second adhesive layer 22, the adhesive layers 2 of the first adhesive layer 21 and the second adhesive layer 22 are in contact connection through the glue accommodating through holes 31 of the glue accommodating layer 3, that is, the adhesive layers 2 of the first adhesive layer 21 and the second adhesive layer 22 are in mutual penetration connection in the glue accommodating through holes 31, so as to ensure the adhesive effect between the first adhesive layer 21 and the second adhesive layer 22. Meanwhile, the first adhesive layer 21 and the second adhesive layer 22 can generate relative dislocation to a certain extent through the accommodating effect of the plurality of adhesive accommodating through holes 31 on the adhesive layer 2, so that the shearing stress generated during bending is reduced.
Optionally, the glue containing layer 3 is a transparent flexible material layer, the first glue layer 21 and the second glue layer 22 completely cover the glue containing layer 3, the transparent flexible material layer may specifically adopt triacetylcellulose or other organic transparent materials, and the triacetylcellulose includes a plasticizer, a cosolvent, a wetting agent, a lubricant, an anti-ultraviolet agent, and the like. Cellulose triacetate is processed into a film by solvent casting, is one of the highest-transmittance polymer materials, and has high light transmittance. The first adhesive layer 21 and the second adhesive layer 22 completely cover the glue accommodating layer 3, which means that the coverage area of the first adhesive layer 21 and the second adhesive layer 22 is greater than or equal to the area of the glue accommodating layer 3.
The embodiment of the utility model provides a display device is still provided, including foretell flexible structure of buckling, wherein, two at least structural layers include one or several kinds in flexible display panel, flexible support piece, touch-control layer and the polaroid.
The embodiment of the utility model provides a mobile terminal is provided again, including foretell display device.
Above, it is only the specific implementation manner of the present invention, and those skilled in the art can clearly understand that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.
It should also be noted that the exemplary embodiments mentioned in the present disclosure describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in a different order from the embodiments, or may be performed simultaneously.
Claims (10)
1. The utility model provides a flexible structure of buckling, has functional area and the region of buckling, the regional distribution of buckling has the line of buckling, its characterized in that, the flexible structure of buckling includes:
a flexible device (1) comprising at least two structural layers arranged in a stack;
bonding glue film, adjacent two the structural layer is through at least one deck the bonding glue film bonds, the bonding glue film is for the combined material layer including adhesive linkage (2) and glue containing layer (3), glue containing layer (3) have a plurality of interval distribution hold gluey through-hole (31), correspond bend region glue containing through-hole (31) and follow the line of buckling extends, in the bonding glue film glue containing layer (3) imbed in adhesive linkage (2) just adhesive linkage (2) at least part is filled glue containing through-hole (31).
2. The flexible bending structure according to claim 1, wherein the adhesive layer comprises a first adhesive layer (21), a second adhesive layer (22) and the glue accommodating layer (3) located between the first adhesive layer (21) and the second adhesive layer (22), and the first adhesive layer (21) and the second adhesive layer (22) are connected to each other in a penetration manner through the glue accommodating through holes (31).
3. The flexible bending structure according to claim 2, wherein the glue containing layer (3) is a transparent flexible material layer, and the first glue layer (21) and the second glue layer (22) completely cover the glue containing layer (3).
4. The flexible bending structure according to claim 1, wherein the occupation space ratio of the glue containing through holes (31) in the glue containing layer (3) is 1: 4-1: 2.
5. The flexible bending structure according to claim 1, wherein the plurality of glue-receiving through holes (31) are holes having a long axis and a short axis, the long axis of the glue-receiving through holes (31) in the functional region is arranged at a predetermined angle with respect to the extending direction of the bending line, and the long axis of the glue-receiving through holes (31) in the bending region is arranged along the extending direction of the bending line.
6. The flexible bending structure according to claim 5, wherein the glue containing through hole (31) is a rectangular hole, one glue containing through hole (31) is distributed in the bending area, and the bending line passes through the center of the short side of the glue containing through hole (31).
7. The flexible folding structure as claimed in claim 6, characterized in that the midline of the glue-receiving through-hole (31) in the length direction of the folding area coincides with the midline of the glue-receiving layer (3).
8. The flexible folding structure as claimed in claim 6, characterized in that the width of the short side of the glue-receiving through-hole (31) in the folding area is greater than the width of the short side of the glue-receiving through-hole (31) in the functional area.
9. A display device comprising the flexible bendable structure of any one of claims 1 to 8;
the at least two structural layers comprise one or more of a flexible display panel, a flexible supporting piece, a touch layer and a polaroid.
10. A mobile terminal characterized by comprising the display device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007090.8U CN210955906U (en) | 2020-01-03 | 2020-01-03 | Flexible bending structural part, display device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007090.8U CN210955906U (en) | 2020-01-03 | 2020-01-03 | Flexible bending structural part, display device and mobile terminal |
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| CN210955906U true CN210955906U (en) | 2020-07-07 |
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| CN202020007090.8U Active CN210955906U (en) | 2020-01-03 | 2020-01-03 | Flexible bending structural part, display device and mobile terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309257A (en) * | 2020-10-30 | 2021-02-02 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and flexible display device |
| CN113380147A (en) * | 2021-06-17 | 2021-09-10 | 云谷（固安）科技有限公司 | Display panel, display panel preparation method and display device |
-
2020
- 2020-01-03 CN CN202020007090.8U patent/CN210955906U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309257A (en) * | 2020-10-30 | 2021-02-02 | 武汉华星光电半导体显示技术有限公司 | Flexible display panel and flexible display device |
| CN113380147A (en) * | 2021-06-17 | 2021-09-10 | 云谷（固安）科技有限公司 | Display panel, display panel preparation method and display device |
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