CN111179759B - Folding structure and folding display device - Google Patents
Folding structure and folding display device Download PDFInfo
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- CN111179759B CN111179759B CN202010088984.9A CN202010088984A CN111179759B CN 111179759 B CN111179759 B CN 111179759B CN 202010088984 A CN202010088984 A CN 202010088984A CN 111179759 B CN111179759 B CN 111179759B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The embodiment of the application provides a folding structure and a folding display device. The folding structure includes first and second support plates for supporting the flexible display panel and a support column. Because the support column includes insulating part and conductive part, through setting up the support column, when preventing that other electrical components from switching on with the contact of first backup pad, can realize switching on of first backup pad and second backup pad for static in the second backup pad can switch on to first backup pad, thereby makes static can fully release, avoids leading to folding display device to cause flexible display panel's damage because of the unable release of static in the ESD environment.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a folding structure and a folding display device.
Background
With the continuous development of display technology, portable large-screen display devices are becoming more and more popular with consumers. Currently, flexible Display devices represented by Organic Light Emitting Diode (OLED) Display devices have characteristics of being deformable and bendable, and have advantages of self-luminescence, high Light Emitting efficiency, short response time, high definition, high contrast, and the like, and thus, the flexible Display devices are the focus of research on foldable Display devices.
Folding display device supports flexible display panel through setting up bearing structure, and present bearing structure includes flexible corrosion resistant plate and two steel sheet supports, and two steel sheet supports are located folding region both sides respectively, and are not continuous each other, and the steel sheet support passes through the adhesive and is connected with corrosion resistant plate. However, in an Electro-Static Discharge (ESD) environment, the foldable display device is easily damaged by Static electricity.
Disclosure of Invention
The application provides a folding structure and a folding display device aiming at the defects of the prior art, and is used for solving the technical problem that in the prior art, static electricity is concentrated and cannot be released in an ESD environment, so that the folding display device is damaged.
In a first aspect, embodiments of the present application provide a folding structure, including: the device comprises a first supporting plate, at least two second supporting plates and at least two supporting columns;
the first supporting plate is made of a flexible conductive material;
the second supporting plates are made of conductive materials and arranged on one side of the first supporting plate far away from the flexible display panel, the second supporting plates are arranged at intervals, and the folding area of the folding structure comprises an interval area between every two adjacent second supporting plates;
the supporting columns are at least partially arranged in the folding area;
the support column comprises an insulating part and a conductive part, the conductive part is connected with the first support plate and the second support plate, and the insulating part is arranged at one end, far away from the first support plate, of the conductive part.
In a second aspect, an embodiment of the present application provides a foldable display device, including a flexible display panel and the foldable structure provided in the first aspect of the embodiment of the present application, where the flexible display panel is disposed on one side of the foldable structure.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:
in the folding structure that this application embodiment provided, the support column that is located folding zone includes insulating part and conductive part, through setting up the support column, when preventing that other electrical components from switching on with the contact of first backup pad, can realize switching on of first backup pad and second backup pad for static in the second backup pad can switch on to first backup pad, thereby makes static can fully release, reaches the purpose that the protection folding display device does not receive the ESD infringement.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a folding structure provided in an embodiment of the present application;
FIG. 2 is a top view of the folded structure of FIG. 1 provided by an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another folding structure provided in the embodiments of the present application;
FIG. 4 is a schematic structural diagram of another folding structure provided in the embodiments of the present application;
FIG. 5 is a top view of the folded structure of FIG. 4 provided by an embodiment of the present application;
fig. 6 is a schematic cross-sectional view of a foldable display device according to an embodiment of the present disclosure.
The reference numerals are explained as follows:
100-a folded configuration; 101-a folding zone; 102-rigid body region;
10-a first support plate; 20-a second support plate; 30-a support column; 40-a binder;
31-an insulating part; 32-a conductive portion;
200-a flexible display panel; 300-polarized touch layer; 400-cover plate; 500-conductive tape;
601-MFPC (Main Flexible Printed Circuit); 602-COF (Chip On Film); 603-TFPC (Touch Flexible Printed Circuit).
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
Among the prior art, the supporting structure comprises a flexible stainless steel plate and two steel sheet supports, wherein the two steel sheet supports are respectively arranged at two sides of a folding area, the stainless steel plate and the steel sheet supports are mutually insulated, and in an ESD (electro-static discharge) environment, static electricity of the two steel sheet supports cannot be released in a concentrated manner, so that the folding display device is damaged.
In an embodiment of the present application, as shown in fig. 1, a folding structure 100 includes: a first support plate 10, at least two second support plates 20, and at least two support columns 30; the first supporting plate 10 is made of a flexible conductive material; the second support plates 20 are made of conductive materials, and are disposed on a side of the first support plate 10 away from the flexible display panel, and the second support plates 20 are disposed at intervals, and the folding region 101 of the folding structure 100 includes a spacing region between two adjacent second support plates 20; the support posts 30 are at least partially disposed within the fold region 101; the support column 30 includes an insulating portion 31 and a conductive portion 32, the conductive portion 32 is connected to the first support plate 10 and the second support plate 20, and the insulating portion 31 is disposed at an end of the conductive portion 32 away from the first support plate 10.
It should be noted that the folding region 101 of the folding structure 100 provided in the embodiments of the present application refers to a region where the folding structure 100 can be bent significantly when folded. The folding structure 100 further comprises a rigid body region 102 outside the folding region 101, wherein the rigid body region 102 is a region where the folding structure 100 is not bent or is bent to a small extent when folded, as shown in fig. 2, the rigid body region 102 mainly comprises a region where the second support plate 20 is located, and the second support plate 20 has a certain stiffness so that the folding structure 100 is not bent when folded. Those skilled in the art will appreciate that the number and arrangement of the folding regions 101 and the rigid body regions 102 in the folding structure 100 are not limited to the form shown in fig. 2, and those skilled in the art can determine the specific number and arrangement of the folding regions 101 and the rigid body regions 102 according to actual requirements.
In the folding structure 100 provided in the embodiment of the present application, each of the first support plate 10 and the second support plate 20 is made of a conductive material, and is used for supporting the flexible display panel of the folding display device, and facilitating heat dissipation of the folding display device, thereby improving heat dissipation performance of the folding display device. Because the supporting column 30 located in the folding area 101 includes the insulating portion 31 and the conductive portion 32, by providing the supporting column 30, while preventing other electrical components from being in contact with the first supporting plate 10 to conduct, the conduction between the first supporting plate 10 and the second supporting plate 20 can be realized, so that the static electricity on the second supporting plate 20 can be conducted to the first supporting plate 10, and then the grounding wire connected with the first supporting plate 10 is used for realizing the release of the static electricity, thereby the static electricity can be fully released, and the damage of the flexible display panel caused by the failure of the static electricity in the ESD environment due to the folding display device is avoided.
In one embodiment of the present application, in order to prevent the first support plate 10 and the second support plate 20 of the foldable display device from being misaligned during repeated folding, the first support plate 10 and the second support plate 20 are fixedly connected by an adhesive 40.
Optionally, in order to ensure the adhesion strength between the first support plate 10 and the second support plate 20, the adhesive 40 used in this embodiment includes a high-strength adhesive, and the high-strength adhesive generally has no conductivity, so that the first support plate 10 and the second support plate 20 are not conducted by the adhesive 40, and the conduction between the first support plate 10 and the second support plate 20 needs to be achieved by means of other structures.
Compare in through using the mode of conducting resin with first backup pad 10 and second backup pad 20 fixed connection, because conducting resin adhesiveness is less strong, beta structure 100 can make first backup pad 10 and second backup pad 20 take place the dislocation after buckling many times, and the phenomenon of separation even can't play the supporting role to destroy the display panel rete that beta structure 100 supported.
In one embodiment of the present application, as shown in fig. 1, 2 and 3, the conductive part 32 of the supporting column 30 is located in the folding region 101, one end of the conductive part 32 is connected to the first supporting plate 10, and the other end is connected to one end of the insulating part 31 located in the folding region 101; the other end of the insulating portion 31 is located in the rigid body region 102 of the folded structure 100 and is connected to the side of the second support plate 20 away from the first support plate 10. The conductive portions 32 of the support columns 30 are made of conductive materials, the conductive portions 32 are respectively in contact connection with the first support plate 10 and the second support plate 20, and the conduction of the first support plate 10 and the second support plate 20 is realized through the conductive portions 32.
Meanwhile, in order to prevent the electrical components of the foldable display device disposed on the second support plate 20 from contacting the first support plate 10 to cause a short circuit, the insulating part 31 is disposed at one end of the conductive part 32 away from the first support plate 10.
In one embodiment of the present application, as shown in fig. 1, the second support plate 20 is provided with a mounting step adapted to the insulating portion 31, and the insulating portion 31 is disposed on the mounting step at one end of the rigid body region 102. The purpose of the installation step is to ensure that the insulation portion 31 is flush with the surface of the second support plate 20 away from the first support plate 10, so as to ensure that the insulation portion 31 does not affect other components of the foldable display device, and avoid the insulation portion 31 interfering with other components.
Alternatively, when it is ensured that the installation step is not required and the insulating part 31 does not affect other components of the foldable display device, as shown in fig. 3, the insulating part 31 may be directly disposed on the second support plate 20, so that the structure of the foldable structure 100 may be simplified and the production cost of the foldable structure 100 may be reduced.
In one embodiment of the present application, as shown in fig. 2, a projection area of the insulating part 31 of the support column 30 on the first support plate 10 at least partially overlaps a projection area of the second support plate 20 on the first support plate 10.
It will be understood by those skilled in the art that in the embodiment of the present application, such as the folded structure shown in fig. 1 and 3, the projection area of the insulating part 31 on the first support plate 10 at least partially overlaps with the projection area of the second support plate 20 on the first support plate 10. It should be noted that, in the embodiment of the present application, the projection area of the insulating portion 31 on the first support plate 10 and the projection area of the second support plate 20 on the first support plate 10 are at least partially overlapped, so that the contact area between the insulating portion 31 and the second support plate 20 can be increased, the adhesion strength between the insulating portion 31 and the second support plate 20 is increased, the separation and the misalignment between the insulating portion 31 and the second support plate 20 caused during the repeated folding process of the folding structure 100 are prevented, and the stability of the folding structure 100 is improved.
In one embodiment of the present application, in order to further reduce the modification of the structure of the second support plate 20, simplify the structure of the support column 30, further simplify the structure of the folding structure 100, and provide a structural schematic view of another folding structure, as shown in fig. 4, one side of the insulating part 31 is attached to the side of the second support plate 20.
As shown in fig. 5, which is a top view of the folding structure shown in fig. 4, it can be seen from fig. 5 that the folding structure shown in fig. 4 is different from the folding structure provided in the above embodiment in that the projection area of the insulating part 31 on the first support plate 10 completely overlaps with the projection area of the conductive part 32 on the first support plate 10. This arrangement can further simplify the structure of the folding structure 100, further reducing the production cost of the folding structure 100.
It should be noted that, in order to ensure that the foldable structure 100 can effectively support the flexible display panel of the foldable display device, the second support plate 20 in the foldable structure 100 according to the embodiment of the present invention is made of a hard material, so as to ensure that the second support plate 20 can function to support the flexible display panel during the process of folding and bending the foldable structure 100.
Alternatively, the first support plate 10 of the folding structure 100 provided in the embodiment of the present application is made of a stainless steel material. The material has certain rigidity and can be bent. The second supporting plate is made of a steel plate, the steel plate is high in hardness and can provide good supporting performance, and the steel plate is excellent in electric conductivity.
Based on the same inventive concept, the present application also provides a foldable display device, as shown in fig. 6, the foldable display device includes a flexible display panel 200 and the foldable structure 100 provided in the above embodiments of the present application, wherein the flexible display panel 200 is disposed at one side of the foldable structure 100.
It should be noted that the foldable display device may be an electronic device such as a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and the like, which have a folding function.
In one embodiment of the present application, the foldable display device further includes a cover 400, a polarized touch layer 300, and an electrical element; the polarized touch layer 300 is located on a side of the flexible display panel 200 away from the folding structure 100, the cover 400 is located on a side of the polarized touch layer 300 away from the flexible display panel 200, and the electrical element is located on a side of the second support plate 20 away from the first support plate 10.
In one embodiment of the present application, the electrical components include MFPC (Main Flexible Circuit) 601, COF (Chip On Film) 602, and TFPC (Touch Flexible Circuit) 603; the MFPC main flexible circuit board 601 is electrically connected to the COF602, and the COF602 is electrically connected to the flexible display panel 200; the TFPC touch flexible circuit board 603 is electrically connected to the polarized touch layer 300. The COF602 is electrically connected to the flexible display panel 200 through the conductive tape 500, and the TFPC touch flexible circuit board 603 is electrically connected to the polarized touch layer 300 through the conductive tape 500.
It should be noted that, in order to ensure that the folding structure 100 can sufficiently discharge static electricity in an electrostatic environment, the first support plate 10 or any one of the second support plates 10 of the folding structure 100 is electrically connected to the grounding trace, so as to discharge the static electricity collected on the folding structure 100.
Compare in the folding display device among the prior art, this application folding display device is owing to be provided with beta structure 100, beta structure 100's first backup pad 10 switches on with second backup pad 20 for static on the second backup pad 20 can switch on to first backup pad 10, and then walks the release that realizes static through the ground connection of being connected with first backup pad 10, thereby make static can fully release, avoid leading to folding display device to cause flexible display panel's damage because of the unable release of static in the ESD environment.
Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (9)
1. A folding structure, comprising: the device comprises a first supporting plate, at least two second supporting plates and at least two supporting columns;
the first supporting plate is made of a flexible conductive material;
the second supporting plates are made of conductive materials and arranged on one side, far away from the flexible display panel, of the first supporting plate, the second supporting plates are arranged at intervals, and the folding area of the folding structure comprises an interval area between every two adjacent second supporting plates;
the support columns are at least partially arranged in the folding area;
the supporting column comprises an insulating part and a conductive part, the conductive part is connected with the first supporting plate and the second supporting plate, and the insulating part is arranged at one end, far away from the first supporting plate, of the conductive part;
the conductive part is positioned in the folding area, one end of the conductive part is connected with the first supporting plate, and the other end of the conductive part is connected with one end of the insulating part positioned in the folding area;
the other end of the insulating part is positioned in the rigid body area of the folding structure and is connected to one side, far away from the first supporting plate, of the second supporting plate.
2. The folding structure of claim 1 wherein the first support panel and the second support panel are fixedly attached to each other by an adhesive.
3. The folding structure of claim 1, wherein the second support plate is provided with a mounting step adapted to the insulating portion, and the insulating portion is provided on the mounting step at one end of the rigid body region.
4. A folding structure according to claim 1 or 3, characterized in that the projection area of the insulation on the first support plate at least partially overlaps the projection area of the second support plate on the first support plate.
5. The folding structure according to claim 1, wherein a projected area of the insulating portion on the first support plate completely overlaps with a projected area of the conductive portion on the first support plate.
6. The folding structure of claim 1 wherein said second support panel is made of a hard material.
7. A folding display device comprising a flexible display panel and a folding structure according to any one of claims 1 to 6, said flexible display panel being arranged on one side of said folding structure.
8. The folding display device of claim 7, further comprising a cover sheet, a polarizing touch layer, and an electrical element;
the polarized light touch layer is located flexible display panel keeps away from one side of beta structure, the apron is located polarized light touch layer keeps away from one side of flexible display panel, electric elements is located the second backup pad is kept away from one side of first backup pad.
9. The folding display device of claim 8, wherein the electric elements include a main flexible circuit board, a COF flexible circuit board, and a touch flexible circuit board;
the main flexible circuit board is electrically connected with the COF flexible circuit board, and the COF flexible circuit board is electrically connected with the flexible display panel;
the touch flexible circuit board is electrically connected with the polarized light touch layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010088984.9A CN111179759B (en) | 2020-02-12 | 2020-02-12 | Folding structure and folding display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010088984.9A CN111179759B (en) | 2020-02-12 | 2020-02-12 | Folding structure and folding display device |
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| CN111179759A CN111179759A (en) | 2020-05-19 |
| CN111179759B true CN111179759B (en) | 2022-01-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210836911U (en) | 2020-02-25 | 2020-06-23 | 京东方科技集团股份有限公司 | Display module and display device |
| WO2022040906A1 (en) * | 2020-08-25 | 2022-03-03 | 京东方科技集团股份有限公司 | Display device |
| CN113096536B (en) * | 2021-04-07 | 2023-04-25 | 京东方科技集团股份有限公司 | Folding structure and folding display device |
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| CN111179759A (en) | 2020-05-19 |
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