CN110718155A - Folding display device - Google Patents
Folding display device Download PDFInfo
- Publication number
- CN110718155A CN110718155A CN201911016933.9A CN201911016933A CN110718155A CN 110718155 A CN110718155 A CN 110718155A CN 201911016933 A CN201911016933 A CN 201911016933A CN 110718155 A CN110718155 A CN 110718155A
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- China
- Prior art keywords
- substrate
- foldable
- display panel
- display device
- rotating shaft
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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
Abstract
The invention provides a folding display device which comprises a folding module, a sliding device and a display panel. The foldable module comprises a first substrate, a second substrate and a bending mechanism, wherein the first substrate and the second substrate are arranged oppositely, and the bending mechanism is arranged between the first substrate and the second substrate; the at least two sliding devices are respectively arranged on the first substrate and the second substrate; the display panel is arranged on the sliding device and comprises a panel folding area and a non-folding area, and the panel folding area is opposite to the bending mechanism; when the display panel is bent, the display panel can slide relative to the foldable module through the sliding device. The invention solves the technical problem that the display panel is easy to break or wrinkle due to over-concentration of the stress of the bending area of the flexible display panel in the folding display device, thereby further enabling the bending radius of the bending area to be smaller.
Description
Technical Field
The invention relates to the field of display, in particular to a folding display device.
Background
With the development of Organic Light Emitting Display (OLED) technology, particularly flexible display technology, foldable flexible display products have come closer and closer to our lives.
As shown in fig. 1, a schematic plan view of a conventional foldable display device, a foldable display device 90 includes a foldable structure 91 and a display panel 92, and the display panel 92 is a flexible display panel and is partially or completely fixed in a non-foldable area 911 and a foldable area 912 of the foldable structure 91. Since the stress generated when each layer of the display panel 92 is bent is different, and the smaller the bending radius, the larger the stress, the more likely the risk of peeling or breaking between different layers occurs, so the bending radius of the folding structure 91 cannot be too small at present.
As shown in fig. 2, which is a schematic structural diagram of the folded display device 90 in fig. 1, a stress problem exists when the flexible display panel 92 is bent in the corresponding folding region 912, so that a certain stress is generated between the folded flexible display panel 92 and the folding structure 91, the flexible display panel 92 is wrinkled in the folding region 912, a large stress is generated in the bending region 921 of the flexible display panel 92, and if there is not enough buffer space around the bending region 921, the stress cannot be released, so that the bending region 921 is excessively concentrated to cause a fracture or wrinkle phenomenon.
Therefore, a suitable mechanical component needs to be arranged inside the display device, so that after the flexible display panel is bent, the bending area can naturally expand the appearance, stress is released, and damage caused by bending is avoided.
Disclosure of Invention
The invention aims to provide a folding display device, which solves the technical problem that the display panel is easy to break or wrinkle due to over-concentrated stress of a bending area of a flexible display panel in the folding display device, and further enables the bending radius of the bending area to be smaller.
In order to achieve the above object, the present invention provides a foldable display device, which includes a foldable module, a sliding device and a display panel. The foldable module comprises a first substrate, a second substrate and a bending mechanism, wherein the first substrate and the second substrate are arranged oppositely, and the bending mechanism is arranged between the first substrate and the second substrate; the at least two sliding devices are respectively arranged on the first substrate and the second substrate; the display panel is mounted to the sliding device and comprises a panel folding area and a non-folding area, and the panel folding area is opposite to the bending mechanism; when the display panel is bent, the display panel can slide relative to the foldable module through the sliding device.
Further, the sliding device is arranged along the extending direction of the foldable module.
Further, the sliding device comprises a guide rail groove and a connecting lug; the guide rail groove is arranged on the foldable module; the connecting lug comprises a connecting end and a clamping end, the connecting end is connected to the lower portion of the display panel, and the clamping end is clamped in the guide rail groove in a sliding mode.
Further, the width of the connecting end is smaller than that of the clamping end.
Furthermore, the upper surface of the foldable module is provided with side walls which are arranged in pairs, the side walls in pairs are arranged oppositely, the tops of the side walls in pairs are mutually folded, and the side walls and the foldable module are arranged together to form the guide rail groove in an enclosing mode.
Furthermore, the cross section of the connecting lug is I-shaped or convex, the lower end of the connecting lug is provided with a protruding part, and the protruding part is clamped in the guide rail groove.
Further, the bending mechanism is hinged to the first substrate and the second substrate respectively; the first substrate and the second substrate are distributed in the same plane when being unfolded, and are arranged in parallel after being folded.
Further, after the first substrate and the second substrate are folded, the non-folding region of the display panel is located between the first substrate and the second substrate; or after the first substrate and the second substrate are folded, the non-folding region of the display panel is located on two sides of the first substrate and the second substrate.
Furthermore, the bending mechanism comprises a first rotating shaft, a second rotating shaft and a hinge plate between the first rotating shaft and the second rotating shaft. The first rotating shaft is positioned at the edge of one end of the first substrate; the second rotating shaft is positioned at the edge of one end of the second substrate; one end of the hinged plate is connected with the first rotating shaft, and the other end of the hinged plate is connected with the second rotating shaft; the first rotating shaft can rotate relative to the hinge plate, and the second rotating shaft can rotate relative to the hinge plate.
The foldable display device has the technical effects that the sliding device is arranged, so that when the display panel is bent, the display panel and the foldable module slide relatively through the sliding device, the technical problem that the display panel is easy to break or wrinkle due to over-concentration of stress of a bending area of a flexible display panel in the foldable display device is solved, and the bending radius of the bending area is smaller.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic plan view illustrating a foldable display device according to the prior art;
FIG. 2 is a schematic view of the folded display device shown in FIG. 1 after folding;
fig. 3 is a schematic plan view of the foldable display device according to embodiment 1;
FIG. 4 is a schematic view of the folded display device shown in FIG. 3 after being folded;
fig. 5 is a schematic cross-sectional structure diagram of the foldable display device in embodiment 1, mainly showing the structure of the sliding device;
fig. 6 is a schematic cross-sectional structure diagram of the foldable display device in embodiment 2, which mainly shows the structure of the sliding device;
fig. 7 is a schematic structural diagram of the folded display device according to embodiment 2 after folding.
The components in the drawings are identified as follows:
1. a foldable module 2, a sliding device 3, a display panel 4, a bending mechanism,
11. a first base plate 12, a second base plate 13, a side wall 21, a guide rail groove,
22. a connection projection 31, a panel folding area 32, a non-folding area 41, a first rotating shaft,
42 second hinge, 43 hinge plate, 100, foldable display device,
101. non-folding area, 102, folding area, 221, connecting end, 222, and clamping end.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for illustrating the invention and enabling those skilled in the art to fully describe the technical contents of the present invention so as to make the technical contents more clear and easy to understand. The present invention may, however, be embodied in many different forms of embodiments and the scope of the present invention should not be construed as limited to the embodiments set forth herein.
The terms "first," "second," "third," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
As shown in fig. 3 and 4, the present embodiment provides a foldable display device 100, which includes a foldable module 1, a sliding device 2 and a display panel 3. The foldable display device 100 is provided with a non-folding area 101 and a folding area 102, and the foldable module 1 includes a first substrate 11, a second substrate 12 and a bending mechanism 4 disposed between the first substrate 11 and the second substrate 12, which are oppositely disposed, in the folding area 102; at least two of the sliding devices 2 are respectively arranged on the first substrate 11 and the second substrate 12; the display panel 3 is mounted to the sliding device 2, the display panel 3 comprises a panel folding area 31 and a non-folding area 32, and the panel folding area 31 is arranged opposite to the bending mechanism 4; when the display panel 3 is bent, the display panel 3 can slide relative to the foldable module 1 through the sliding device 2.
The display panel 3 is preferably a flexible display panel, which is easy to bend.
As shown in fig. 3 and 4, the sliding device 2 is disposed along the extending direction of the foldable module 1. This facilitates the display panel 3 to slide relative to the foldable module 1 along the extending direction of the foldable module 1 through the sliding device 2 when the display panel 3 is bent. Preferably, the sliding devices 2 on the first substrate 11 and the sliding devices 2 on the second substrate 12 are distributed on the same straight line.
As shown in fig. 5, in the present embodiment, the sliding device 2 includes a guide groove 21 and a connection protrusion 22; the guide rail groove 21 is arranged on the foldable module 1; the connecting protrusion 22 includes a connecting end 221 and a clamping end 222, the connecting end 221 is connected to the lower side of the display panel 3, and the clamping end 222 is slidably clamped in the guide groove 21. In this embodiment, the guide rail groove 21 is concavely arranged on the foldable module 1, so that the gap between the display panel 3 and the foldable module 1 is small, and the appearance is more attractive.
In this embodiment, the width of the connecting end 221 is smaller than the width of the clamping end 222. Preferably, the cross sections of the guide rail groove 21 and the connecting protrusion 22 are trapezoidal, so that the clamping end 222 can be clamped in the guide rail groove 21 in a sliding manner, so as to avoid falling off.
In this embodiment, the bending mechanism 4 is hinged to the first substrate 11 and the second substrate 12 respectively; as shown in fig. 3, the first substrate 11 and the second substrate 12 are distributed in the same plane when they are unfolded; as shown in fig. 4, after the first substrate 11 and the second substrate 12 are folded, the first substrate 11 and the second substrate 12 are parallel to each other.
After the first substrate 11 and the second substrate 12 are folded, the non-folding region 32 of the display panel 3 is located between the first substrate 11 and the second substrate 12; or the non-folding region 32 of the display panel 3 is located at both sides of the first substrate 11 and the second substrate 12. As shown in fig. 4, a schematic structural view of the display panel 3 with the non-folding region 32 located between the first substrate 11 and the second substrate 12 after the first substrate 11 and the second substrate 12 are folded is mainly shown.
As shown in fig. 3 and 4, in the present embodiment, the bending mechanism 4 is a bearing hinge. Specifically, the bending mechanism 4 includes a first rotating shaft 41, a second rotating shaft 42, and a hinge plate 43 therebetween. The first rotating shaft 41 is located at the edge of one end of the first base plate 11; the second rotating shaft 42 is located at the edge of one end of the second substrate 12; one end of the hinge plate 43 is connected with the first rotating shaft 41, and the other end thereof is connected with the second rotating shaft 42; the first rotating shaft 41 can rotate relative to the hinge plate 43, and the second rotating shaft 42 can rotate relative to the hinge plate 43.
In other embodiments, the bending mechanism 4 includes two semi-circular gear teeth (not shown), a first gear tooth and a second gear tooth. The first gear teeth are arranged at the edge of one end of the first base plate 11, the second gear teeth are arranged at the edge of one end of the second base plate 12, and the first gear teeth are meshed with the second gear teeth. When first base plate 11 with when second base plate 12 takes place relative rotation, the two synchronous rotation, because the two in-process rotation contained angle scope is 0 ~ 180 degrees, therefore casing lateral wall edge only need set up the semi-circular teeth of a cogwheel can.
The technical effect of the present invention is to provide a foldable display device 100, wherein a sliding device 2 is arranged so that when a display panel 3 is bent, the display panel 3 slides relative to a foldable module 1 through the sliding device 2, thereby solving the technical problem that the display panel 3 is easily broken or wrinkled due to too concentrated stress in a bending region of a flexible display panel 3 in the foldable display device 100, and further reducing the bending radius of the bending region.
Example 2
As shown in fig. 6, this embodiment provides a foldable display device 100, which includes most of the technical features of embodiment 1, and is different in that the pair of sidewalls 13 are disposed on the upper surface of the foldable module 1, the pair of sidewalls 13 are disposed opposite to each other, and the tops of the sidewalls 13 are folded together, and the sidewalls 13 and the foldable module 1 are disposed together to form the guide groove 21.
As shown in fig. 6, in this embodiment, the cross section of the connecting protrusion 22 is i-shaped or convex, the lower end of the connecting protrusion 22 is provided with a protrusion 221, and the protrusion 221 is clamped in the guide groove 21.
After the first substrate 11 and the second substrate 12 are folded, the non-folding region 32 of the display panel 3 is located between the first substrate 11 and the second substrate 12; or the non-folding region 32 of the display panel 3 is located at both sides of the first substrate 11 and the second substrate 12. As shown in fig. 7, a schematic structural view of the folded first substrate 11 and the second substrate 12 showing the non-folded region 32 of the display panel 3 located at two sides of the first substrate 11 and the second substrate 12 is shown. At this time, the width of the hinge plate 43 in embodiment 2 is smaller than that of the hinge plate 43 in embodiment 1, so that the overall thickness of the foldable display device 100 is reduced.
The technical effect of the present invention is to provide a foldable display device 100, wherein a sliding device 2 is provided to enable a display panel 3 to slide relative to a foldable module 1 through the sliding device 2 when the display panel 3 is bent, so as to solve the technical problem that the display panel 3 is easily broken or wrinkled due to too concentrated stress in a bending region of a flexible display panel 3 in the foldable display device 100, and further to enable the bending radius of the bending region to be smaller.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A foldable display device, comprising:
the foldable module comprises a first substrate, a second substrate and a bending mechanism, wherein the first substrate and the second substrate are arranged oppositely;
at least two sliding devices respectively arranged on the first substrate and the second substrate;
the display panel is arranged on the sliding device and comprises a panel folding area and a non-folding area, and the panel folding area is opposite to the bending mechanism;
when the display panel is bent, the display panel can slide relative to the foldable module through the sliding device.
2. The foldable display device of claim 1, wherein the sliding means is disposed along the direction of extension of the foldable module.
3. The foldable display device of claim 1, wherein the sliding means comprises:
the guide rail groove is arranged on the foldable module; and
the connecting lug comprises a connecting end and a clamping end, the connecting end is connected to the lower part of the display panel, and the clamping end is clamped in the guide rail groove in a sliding mode.
4. The foldable display device of claim 3, wherein the connecting end has a width less than a width of the snap end.
5. The foldable display device of claim 3,
the foldable module is provided with side walls which are arranged in pairs, the side walls in pairs are arranged oppositely, the tops of the side walls in pairs are mutually folded, and the side walls and the foldable module are arranged together to form a guide rail groove in an enclosing mode.
6. The foldable display device of claim 3,
the cross section of the connecting lug is I-shaped or convex, the lower end of the connecting lug is provided with a protruding part, and the protruding part is clamped in the guide rail groove.
7. The foldable display device of claim 1,
the bending mechanism is hinged to the first substrate and the second substrate respectively; the first substrate and the second substrate are distributed in the same plane when being unfolded, and are arranged in parallel after being folded.
8. The foldable display device of claim 7, wherein after the first substrate and the second substrate are folded, the non-folded region of the display panel is located between the first substrate and the second substrate.
9. The foldable display device of claim 7, wherein after the first substrate and the second substrate are folded, the non-folded region of the display panel is located at two sides of the first substrate and the second substrate.
10. The foldable display device of claim 1, wherein the folding mechanism comprises:
the first rotating shaft is positioned at the edge of one end of the first substrate;
the second rotating shaft is positioned at the edge of one end of the second substrate; and
one end of the hinged plate is connected with the first rotating shaft, and the other end of the hinged plate is connected with the second rotating shaft;
the first rotating shaft can rotate relative to the hinge plate, and the second rotating shaft can rotate relative to the hinge plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911016933.9A CN110718155A (en) | 2019-10-24 | 2019-10-24 | Folding display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911016933.9A CN110718155A (en) | 2019-10-24 | 2019-10-24 | Folding display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110718155A true CN110718155A (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911016933.9A Pending CN110718155A (en) | 2019-10-24 | 2019-10-24 | Folding display device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111179762A (en) * | 2020-03-06 | 2020-05-19 | 上海天马微电子有限公司 | Folding display device |
| CN111968519A (en) * | 2020-08-31 | 2020-11-20 | 合肥维信诺科技有限公司 | Display device |
| CN112863365A (en) * | 2021-03-09 | 2021-05-28 | 厦门天马微电子有限公司 | Folding display device and use method thereof |
| WO2021159610A1 (en) * | 2020-02-10 | 2021-08-19 | 武汉华星光电半导体显示技术有限公司 | Foldable in-vehicle display device and vehicle |
| CN113450644A (en) * | 2020-03-24 | 2021-09-28 | 上海和辉光电有限公司 | Foldable display device |
| WO2021237822A1 (en) * | 2020-05-28 | 2021-12-02 | 武汉华星光电半导体显示技术有限公司 | Foldable display device |
| CN113824819A (en) * | 2020-06-18 | 2021-12-21 | 华为技术有限公司 | Flexible screen assembly and terminal |
| CN114913775A (en) * | 2022-06-22 | 2022-08-16 | 武汉华星光电半导体显示技术有限公司 | Flexible display module and display device |
| CN114999330A (en) * | 2022-07-08 | 2022-09-02 | 武汉华星光电半导体显示技术有限公司 | Folding mechanism and folding display device |
| CN115035798A (en) * | 2022-06-23 | 2022-09-09 | 合肥维信诺科技有限公司 | Bending jig and flexible display device |
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| CN112863365A (en) * | 2021-03-09 | 2021-05-28 | 厦门天马微电子有限公司 | Folding display device and use method thereof |
| CN114913775B (en) * | 2022-06-22 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Flexible display module and display device |
| CN114913775A (en) * | 2022-06-22 | 2022-08-16 | 武汉华星光电半导体显示技术有限公司 | Flexible display module and display device |
| CN115035798A (en) * | 2022-06-23 | 2022-09-09 | 合肥维信诺科技有限公司 | Bending jig and flexible display device |
| CN115035798B (en) * | 2022-06-23 | 2023-09-22 | 合肥维信诺科技有限公司 | Bending jig and flexible display device |
| CN114999330B (en) * | 2022-07-08 | 2023-11-28 | 武汉华星光电半导体显示技术有限公司 | Folding mechanism and folding display device |
| CN114999330A (en) * | 2022-07-08 | 2022-09-02 | 武汉华星光电半导体显示技术有限公司 | Folding mechanism and folding display device |
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