CN114283679A - Flexible display panel and electronic device - Google Patents
Flexible display panel and electronic device Download PDFInfo
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- CN114283679A CN114283679A CN202011045753.6A CN202011045753A CN114283679A CN 114283679 A CN114283679 A CN 114283679A CN 202011045753 A CN202011045753 A CN 202011045753A CN 114283679 A CN114283679 A CN 114283679A
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- flexible display
- layer
- display panel
- buffer
- flexible
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- 239000006260 foam Substances 0.000 claims description 23
- 239000010409 thin film Substances 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 18
- 230000003139 buffering effect Effects 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000010408 film Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 90
- 229920000742 Cotton Polymers 0.000 description 8
- 239000012790 adhesive layer Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 208000032912 Local swelling Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Images
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The present disclosure relates to a flexible display panel and an electronic device. The flexible display panel includes: a flexible display body; a buffer layer disposed in a stack with the flexible display body; the supporting layer is stacked with the buffer layer, the buffer layer is arranged between the flexible display main body and the supporting layer, and the supporting layer comprises one or more air holes.
Description
Technical Field
The present disclosure relates to the field of terminal technologies, and in particular, to a flexible display panel and an electronic device.
Background
At present, since flexible display panel is easy to be deformed by external impact, in order to buffer the impact force from the back, it is common to provide a buffer cotton on the back of the flexible display panel far away from the display side, and the impact force is buffered by the buffer cotton. However, the cushion cotton is easily bulged and deformed at high temperature, and further the display effect of the flexible display panel is affected.
Disclosure of Invention
The present disclosure provides a flexible display panel and an electronic device to solve the disadvantages of the related art.
According to a first aspect of embodiments of the present disclosure, there is provided a flexible display panel including:
a flexible display body;
a buffer layer disposed in a stack with the flexible display body;
the supporting layer is stacked with the buffer layer, the buffer layer is arranged between the flexible display main body and the supporting layer, and the supporting layer comprises one or more air holes.
Optionally, the maximum radial dimension of the air holes is less than or equal to 0.5mm and greater than or equal to 0.1 mm.
Optionally, the support layer includes a plurality of air holes, and a minimum distance between adjacent air holes is greater than or equal to 0.5 mm.
Optionally, the flexible display panel further includes a folding hinge, and the folding hinge is connected to the support layer to drive the flexible display main body to fold or unfold.
Optionally, the flexible display main body includes a flexible substrate and a flexible display layer stacked on the flexible substrate, the flexible substrate is located between the flexible display layer and the buffer layer, the flexible substrate is bonded to the buffer layer, and the buffer layer is bonded to the support layer.
Optionally, the buffer layer includes a buffer foam and/or a piezoelectric film layer.
Optionally, the buffer layer comprises buffer foam and a piezoelectric film layer which are both arranged on the support layer, and the air holes face the buffer foam;
the buffering foam is arranged around the piezoelectric thin film layer, the piezoelectric thin film layer is connected with the flexible display main body and is separated from the supporting layer by a preset distance, and the buffering foam is connected with the supporting layer and the flexible display main body respectively.
Optionally, the supporting layer includes a plurality of air holes, and the plurality of air holes are arranged in an array.
Optionally, the support layer comprises a foldable steel sheet layer.
According to a second aspect of the embodiments of the present disclosure, there is provided an electronic device including the flexible display panel according to any one of the embodiments described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
known from above-mentioned embodiment, the supporting layer in this disclosure can include one or more bleeder vent to when the buffer layer is expanded and is out of shape under high temperature or other environment, can accelerate the discharge of air through the bleeder vent, be favorable to reducing the deformation of buffer layer, can reduce the local probability of swelling of flexible display main part, be favorable to promoting flexible display panel's display effect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram of a flexible display panel in the related art.
Fig. 2 is a schematic cross-sectional view of a flexible display panel shown in accordance with an example embodiment.
Fig. 3 is a schematic cross-sectional view of another flexible display panel shown in accordance with an example embodiment.
Fig. 4 is a top view of a flexible display panel shown in accordance with an example embodiment.
Fig. 5 is a schematic cross-sectional view of the flexible display panel of fig. 4.
Fig. 6 is a top view of another flexible display panel shown in a first direction according to an example embodiment.
Fig. 7 is a top view of the flexible display panel of fig. 6 in a second direction.
Fig. 8 is a partially enlarged schematic view of the flexible display panel of fig. 6.
Fig. 9 is a schematic structural diagram of an electronic device according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
At present, based on the characteristics of good flexibility and bending of the flexible display panel, the flexible display panel can be rapidly developed. However, since the strength of the flexible display panel is relatively weak, as shown in fig. 1, in the related art, the flexible display panel 100 includes a display layer 101, a buffer foam 102, a glue layer 103, and a steel sheet layer 104, and the glue layer 103 may bond the buffer foam 102 and the steel sheet layer 104, so that an impact from the back may be buffered by the buffer foam 102, and the buffer foam 102 may be supported by the steel sheet layer 104.
However, when the flexible display panel 100 works in a high-temperature working environment, the buffer foam 102 and the glue layer 103 are both easily expanded by heat, and due to the blocking of the steel sheet layer 104, the expanded air flow cannot be discharged from the back of the buffer foam 102, which hinders the heat dissipation of the flexible display panel 100, and the buffer foam 102 and the glue layer 103 are easily swelled, thereby affecting the display effect of the flexible display panel 100.
Therefore, the present application provides a flexible display panel 200 as shown in fig. 2. As shown in fig. 2, the flexible display panel 200 may include a flexible display main body 1, a buffer layer 2, a support layer 3, and a first adhesive layer 4. Wherein, because flexible display main part 1 is easily buckled, so in order to prevent that flexible display main part 1 from sunken or deformation, influence the display effect of flexible display panel 200, can range upon range of setting buffer layer 2 and flexible display main part 1, when flexible display panel 200 received external impact on the one hand, can cushion the effort through buffer layer 2, on the other hand can support flexible display main part 1 through buffer layer 2, reduces the deformation of flexible display main part 1.
Since the buffer layer 2 needs to buffer the acting force, the buffer layer 2 generally has a certain flexibility, in order to enhance the strength of the flexible display panel 200, the support layer 3 and the buffer layer 2 may be further stacked, and the buffer layer 2 is disposed between the support layer 3 and the flexible display main body 1, specifically, the buffer layer 2 and the support layer 3 may be bonded by the first adhesive layer 4, the first adhesive layer 4 may include a photosensitive adhesive layer, the support layer 3 may include one or more air holes 31, when the buffer layer 3 and the first adhesive layer 4 expand and deform at a high temperature or in other environments, air may be discharged through the air holes 31, which is beneficial to reducing deformation of the buffer layer 3 and the first adhesive layer 4, and may reduce the local swelling probability of the flexible display main body 1, thereby being beneficial to improving the display effect of the flexible display panel 200.
As shown in fig. 3, the flexible display main body 1 may include a flexible substrate 11 and a flexible display layer 12 stacked on the flexible substrate 11, the flexible substrate 11 may be disposed between the flexible display layer 12 and the buffer layer 2, and the flexible display panel 200 may further include a second adhesive layer 5 to adhere the buffer layer 2 and the flexible substrate 11 through the second adhesive layer 5. The flexible substrate 11 may include a thin-film transistor layer through which the power on of the flexible display layer 12 may be controlled. The support layer 3 may include a foldable steel sheet layer, so that the support layer 3 may accommodate bending deformation of the flexible display panel 200, and at the same time, strength of the flexible display panel 200 may be improved. This buffer layer 2 can include one or more in the cotton and the piezoelectric thin film layer of buffering bubble, and when buffer layer 2 includes the cotton and the piezoelectric thin film of buffering bubble, this buffering bubble cotton and piezoelectric thin film layer can set up side by side, and especially when buffer layer 2 includes the piezoelectric thin film, this flexible display panel 200 can vibrate the sound production.
For example, as shown in fig. 4 and 5, the buffer layer 2 may include a buffer foam 21 and a piezoelectric thin film layer 22, the buffer foam 21 may be disposed around the piezoelectric thin film layer 22, the piezoelectric thin film layer 22 may be connected to the flexible substrate 11, the buffer foam 21 may be connected to the support layer 3 and the flexible substrate 11, respectively, and the height of the buffer foam 21 may be greater than that of the piezoelectric thin film layer 22, so that the piezoelectric thin film layer 22 and the support layer 3 may be spaced apart by a predetermined distance. With this, on the one hand when piezoelectric thin film layer 22 vibrates based on the received signal of telecommunication, can drive flexible display main part 1 vibration, and then make flexible display panel 200 vibration sound production, on the other hand, when each position in the region that is surrounded by buffering bubble cotton 21 on piezoelectric thin film layer 22 and flexible substrate 11 all is connected, can surround formation sound chamber through piezoelectric thin film layer 22, buffering bubble cotton 21 and supporting layer 3 to promote flexible display panel 200's vocal effect. Alternatively, in another embodiment, if the piezoelectric thin film layer 22 is not completely attached to a partial position of the region surrounded by the buffer foam 21 on the flexible substrate 11, the sound cavity may be surrounded by the piezoelectric thin film layer 22, the buffer foam 21, the flexible substrate 11 and the support layer 3.
As shown in fig. 6 to 8, the flexible display panel 200 may include a folding hinge 6, and the folding hinge 6 may be connected to the support layer 3 such that the flexible display panel 200 is driven to switch between a folded state and an unfolded state by folding and unfolding of the folding hinge 6. The supporting layer 3 may include a plurality of air holes, which may be shown in a square array as shown in fig. 6, but in other embodiments, the plurality of air holes may also be arranged in a circular shape or other regular shapes, and of course, may also be in an irregular shape, each air hole may be in a circular shape as shown in fig. 6, and in other embodiments, each air hole may also be in a square shape or oval shape or other shapes, which is not limited by the disclosure. Of course, other openings for the sensor to pass through besides the ventilation holes 31 may also be formed on the supporting layer 3, for example, an opening for the lens to obtain light may be formed, or an opening for the infrared emission module to emit light may also be formed.
As shown in fig. 8, the maximum radial dimension of the vent holes 31 included in the support layer 3 may be less than or equal to 0.5mm and greater than or equal to 0.1mm, i.e., D1 is greater than or equal to 0.1mm and less than or equal to 0.5mm in fig. 7, so as to ensure that the airflow can be discharged through the vent holes 31 on the one hand, and on the other hand, avoid the problem that the strength of the support layer 3 is too weak due to the excessively large dimension of the vent holes 31, and the flexible display main body 1 sags down to affect the display effect. When the support layer 3 includes a plurality of vent holes 31, the minimum distance between adjacent vent holes 31 may be greater than or equal to 0.5mm, i.e., 0.5mm ≦ D2 in fig. 7, to ensure the support strength of the support layer 3, and to effectively prevent the display problem caused by the sagging of the flexible display main body 1.
Based on the flexible display panel 200 described in the above embodiments, the present disclosure also provides an electronic device 300 as shown in fig. 9, where the electronic device 300 may configure the flexible display panel 200 described in any of the above embodiments. The electronic device 300 may include a mobile phone terminal, a tablet terminal, a smart home, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A flexible display panel, comprising:
a flexible display body;
a buffer layer disposed in a stack with the flexible display body;
the supporting layer is stacked with the buffer layer, the buffer layer is arranged between the flexible display main body and the supporting layer, and the supporting layer comprises one or more air holes.
2. The flexible display panel of claim 1, wherein the radial maximum dimension of the vent is less than or equal to 0.5mm and greater than or equal to 0.1 mm.
3. The flexible display panel of claim 1, wherein the support layer comprises a plurality of ventilation holes, and a minimum distance between adjacent ventilation holes is greater than or equal to 0.5 mm.
4. The flexible display panel of claim 1, further comprising a folding hinge coupled to the support layer to drive the flexible display body to fold or unfold.
5. The flexible display panel of claim 1, wherein the flexible display body comprises a flexible substrate and a flexible display layer stacked on the flexible substrate, the flexible substrate is located between the flexible display layer and the buffer layer, the flexible substrate is bonded to the buffer layer, and the buffer layer is bonded to the support layer.
6. The flexible display panel of claim 1 or 5, wherein the buffer layer comprises a buffer foam and/or a piezoelectric film layer.
7. The flexible display panel according to claim 1 or 5, wherein the buffer layer comprises a buffer foam and a piezoelectric film layer which are both arranged on the support layer, and the air holes face the buffer foam;
the buffering foam is arranged around the piezoelectric thin film layer, the piezoelectric thin film layer is connected with the flexible display main body and is separated from the supporting layer by a preset distance, and the buffering foam is connected with the supporting layer and the flexible display main body respectively.
8. The flexible display panel of claim 1, 2 or 3, wherein the support layer comprises a plurality of vent holes, and the plurality of vent holes are arranged in an array.
9. The flexible display panel of claim 1, 2 or 3, wherein the support layer comprises a layer of foldable steel.
10. An electronic device, characterized in that it comprises a flexible display panel according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045753.6A CN114283679B (en) | 2020-09-28 | 2020-09-28 | Flexible display panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011045753.6A CN114283679B (en) | 2020-09-28 | 2020-09-28 | Flexible display panel and electronic device |
Publications (2)
| Publication Number | Publication Date |
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| CN114283679A true CN114283679A (en) | 2022-04-05 |
| CN114283679B CN114283679B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011045753.6A Active CN114283679B (en) | 2020-09-28 | 2020-09-28 | Flexible display panel and electronic device |
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| Publication number | Publication date |
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| CN114283679B (en) | 2024-04-16 |
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