CN111210729B - Foldable display device - Google Patents
Foldable display device Download PDFInfo
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- CN111210729B CN111210729B CN202010131102.2A CN202010131102A CN111210729B CN 111210729 B CN111210729 B CN 111210729B CN 202010131102 A CN202010131102 A CN 202010131102A CN 111210729 B CN111210729 B CN 111210729B
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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 foldable display device.A folding part of a supporting part comprises a first gear and a second gear, and the first gear is in meshed connection with the second gear; the first gear includes a first magnetic component; the second gear comprises a second magnetic component and a third magnetic component; the first magnetic assembly and the second magnetic assembly have the same magnetism, and the first magnetic assembly and the third magnetic assembly have opposite magnetism, so that the foldable display device can be kept in the folded or unfolded state not only through the friction force and the interaction force between the first gear and the second gear, but also through the repulsion force between the first magnetic assembly and the second magnetic assembly and the attraction force between the first magnetic assembly and the third magnetic assembly. In addition, the repulsive force between the first magnetic assembly and the second magnetic assembly and the attractive force between the first magnetic assembly and the third magnetic assembly can provide rotating power for the first gear and the second gear, and folding and unfolding of the foldable display device are facilitated.
Description
Technical Field
The invention relates to the technical field of displays, in particular to a foldable display device.
Background
With the development of technology, foldable display devices have become a new trend. The existing foldable display device generally uses friction between components configuring a hinge to achieve the maintenance of a folded or unfolded shape when the foldable display device is folded and unfolded. However, since the successive folding and unfolding of the foldable display device may cause abrasion of components configuring the hinge, it may cause a reduction in a holding force for maintaining a specific folding angle of the foldable display device, thereby causing the foldable display device not to well implement the holding of the folded or unfolded shape.
Disclosure of Invention
In view of the above, the present invention provides a foldable display device to solve the problem that the foldable display device in the prior art cannot maintain the folded or unfolded shape after being folded and unfolded for many times.
In order to achieve the purpose, the invention provides the following technical scheme:
a foldable display device comprising a flexible display panel and a support structure located at the back of the flexible display panel;
the flexible display panel comprises a folding area and non-folding areas positioned on two sides of the folding area;
the support structure comprises a folding part and support parts positioned on two sides of the folding part, the folding part is positioned in the folding area, and the support parts are positioned in the non-folding area;
the folding part comprises a plurality of gears, the gears comprise at least a first gear and a second gear, and the first gear is in meshed connection with the second gear;
the first gear comprises a plurality of first magnetic assemblies, and the plurality of first magnetic assemblies are sequentially arranged along the circumferential direction of the first gear;
the second gear comprises a plurality of second magnetic assemblies and a plurality of third magnetic assemblies, and at least one second magnetic assembly and at least one third magnetic assembly are alternately arranged along the circumferential direction of the second gear;
the magnetism of the first magnetic component is the same as that of the second magnetic component, and the magnetism of the first magnetic component is opposite to that of the third magnetic component.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
according to the foldable display device provided by the invention, the first gear is in meshed connection with the second gear, the first gear comprises a plurality of first magnetic assemblies, the second gear comprises a plurality of second magnetic assemblies with the same magnetism as the first magnetic assemblies and a plurality of third magnetic assemblies with opposite magnetism to the first magnetic assemblies, so that the foldable display device can be kept in the folded or unfolded state through the friction force and the interaction force between the first gear and the second gear, and the foldable display device can be kept in the folded or unfolded state through the repulsion force between the first magnetic assemblies and the second magnetic assemblies and the attraction force between the first magnetic assemblies and the third magnetic assemblies.
In addition, because the magnetism of the first magnetic assembly is the same as that of the second magnetic assembly, and the magnetism of the first magnetic assembly is opposite to that of the third magnetic assembly, in the rotating process of the first gear and the second gear, the repulsive force between the first magnetic assembly and the second magnetic assembly and the attractive force between the first magnetic assembly and the third magnetic assembly can be used for providing rotating power for the first gear and the second gear, and the folding and unfolding of the foldable display device are facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a foldable display device in an unfolded state according to an embodiment of the present invention;
fig. 2 is a schematic top view of a support structure in an unfolded state according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a support structure in a folded configuration according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another second gear according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of another first gear and a second gear provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of another second gear according to an embodiment of the present invention;
FIG. 7 is a schematic view of a tooth arrangement according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of another first gear and a second gear provided in accordance with an embodiment of the present invention;
FIG. 9 is a schematic view of another first and second gear configuration according to an embodiment of the present invention;
FIG. 10 is a schematic top view of another support structure according to an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of a first rotating wheel and a first rotating shaft according to an embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view of a first rotating wheel and a first rotating shaft according to another embodiment of the present invention;
fig. 13 is a schematic cross-sectional view illustrating a first rotating wheel and a first rotating shaft according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the above is the core idea of the present invention, and the above objects, features and advantages of the present invention can be more clearly understood. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a foldable display device which can be applied to electronic equipment such as a mobile phone, a tablet computer and a notebook computer. As shown in fig. 1, fig. 1 is a schematic cross-sectional structural diagram of a foldable display device in an unfolded state, where the foldable display device includes a flexible display panel 1 and a support structure 2 located on a back surface of the flexible display panel 1, that is, the support structure 2 is located on a non-display side of the flexible display panel 1, and the support structure 2 is used for supporting the flexible display panel 1. Of course, the flexible display device in the embodiment of the present invention further includes structures such as an outer frame, which are not described in detail herein.
Therein, the flexible display panel 1 comprises a folding area 10 and non-folding areas 11 located at both sides of the folding area 10. The flexible display panel 1 is a display panel capable of independently displaying, and includes a flexible substrate, and an LED or an OLED and a driving circuit disposed on the flexible substrate. In the unfolded state, i.e. in the unfolded state, the folded region 10 and the unfolded region 11 are in a flat state, and in the folded state, the two unfolded regions 11 are bent into an approximate V shape or U shape, etc. in a direction close to the folded region 10.
As shown in fig. 1, the supporting structure 2 includes a folding portion 20 and supporting portions 21 located at both sides of the folding portion 20, the folding portion 20 is located at the folding region 10, the supporting portions 21 are located at the non-folding region 11, i.e., the folding portion 20 is correspondingly disposed at the back of the folding region 10, and the supporting portions 21 are correspondingly disposed at the back of the non-folding region 11, so as to support the folding region 10 through the folding portion 20 and support the non-folding region 11 through the supporting portions 21.
As shown in fig. 2 and fig. 3, fig. 2 is a schematic top view of the support structure in the unfolded state provided by the embodiment of the present invention, and fig. 3 is a schematic cross-sectional view of the support structure in the folded state provided by the embodiment of the present invention, the folding portion 20 includes a plurality of gears, the plurality of gears includes at least a first gear 201 and a second gear 202, the first gear 201 is in meshed connection with the second gear 202, that is, in the connection portion of the first gear 201 and the second gear 202, teeth of one of the first gear 201 and the second gear 202 are engaged between two teeth of the other gear, and one of the first gear 201 and the second gear 202 drives the other gear to rotate.
Since the first gear 201 is engaged with the second gear 202, the foldable display device can be maintained in the folded or unfolded state by the friction force and the interaction force between the first gear 201 and the second gear 202. Even if the first gear 201 and the second gear 202 are worn due to the multiple folding and unfolding such that the friction force of the first gear 201 and the second gear 202 is reduced, the folded and unfolded states of the foldable display device can be supported by the interaction force therebetween.
In the embodiment of the present invention, as shown in fig. 3, the first gear 201 includes a plurality of first magnetic assemblies a1, the plurality of first magnetic assemblies a1 are sequentially arranged along the circumferential direction of the first gear 201, as shown in fig. 2, the cross-sectional view of the central portion of the first gear 201 is a circle, the plurality of first magnetic assemblies a1 are sequentially arranged along the circumferential direction of the circle, that is, the linear velocity direction of the circular motion, and the first magnetic assemblies a1 are arranged at respective portions of the circumference of the central portion of the first gear 201.
The second gear 202 includes a plurality of second magnetic assemblies a2 and a plurality of third magnetic assemblies A3, and at least one second magnetic assembly a2 and at least one third magnetic assembly A3 are alternately arranged in a circumferential direction of the second gear 202. Alternatively, as shown in fig. 3, one second magnetic assembly a2 and one third magnetic assembly A3 may be alternately arranged along the circumferential direction of the second gear 202, or a plurality of second magnetic assemblies a2 and one third magnetic assembly A3 may be alternately arranged along the circumferential direction of the second gear 202, as shown in fig. 4, fig. 4 is a schematic structural diagram of another second gear 202 provided in the embodiment of the present invention, and two second magnetic assemblies a2 and one third magnetic assembly A3 may be alternately arranged along the circumferential direction of the second gear 202, or a plurality of second magnetic assemblies a2 and a plurality of third magnetic assemblies A3 may be alternately arranged along the circumferential direction of the second gear 202, or one second magnetic assembly a2 and a plurality of third magnetic assemblies A3 may be alternately arranged along the circumferential direction of the second gear 202.
In the embodiment of the invention, the magnetism of the first magnetic assembly a1 and the magnetism of the second magnetic assembly a2 are the same, and the magnetism of the first magnetic assembly a1 and the magnetism of the third magnetic assembly A3 are opposite, for example, the first magnetic assembly a1 and the second magnetic assembly a2 are both N poles of a magnet, and the third magnetic assembly A3 is an S pole of the magnet; alternatively, the first and second magnetic assemblies a1 and a2 are both the S poles of the magnets and the third magnetic assembly A3 is the N pole of the magnets. That is, there is a repulsive force between the first magnetic assembly a1 of the first gear 201 and the second magnetic assembly a2 of the second gear 202, and there is an attractive force between the first magnetic assembly a1 of the first gear 201 and the third magnetic assembly A3 of the second gear 202.
Based on this, the foldable display device may be maintained in the folded or unfolded state by a repulsive force between the first and second magnetic assemblies a1 and a2 and an attractive force between the first and third magnetic assemblies a1 and A3. Moreover, since the magnetism of the first magnetic assembly a1 and the second magnetic assembly a2 is the same, and the magnetism of the first magnetic assembly a1 and the third magnetic assembly A3 is opposite, during the rotation of the first gear 201 and the second gear 202, the repulsive force between the first magnetic assembly a1 and the second magnetic assembly a2 and the attractive force between the first magnetic assembly a1 and the third magnetic assembly A3 can be used for providing the rotating power for the first gear 201 and the second gear 202, which is more beneficial for the folding and unfolding of the foldable display device, and the damping feeling can be generated during the rotation through the attractive force and the repulsive force to avoid the too fast folding or unfolding, thereby breaking the structure of the foldable display device.
Optionally, in the embodiment of the present invention, when the foldable display device is fully unfolded or fully folded, the third magnetic assembly A3 of the second gear 202 is in contact with the first magnetic assembly a1 of the first gear 201 to better maintain the fully unfolded or fully folded state of the foldable display device.
Of course, the present invention is not limited thereto, and in other embodiments, as shown in fig. 5, fig. 5 is a schematic structural diagram of the first gear 201 and the second gear 202 according to another embodiment of the present invention, and the second gear 202 includes a third region S3 and a fourth region S4 arranged along a circumferential direction, one second magnetic assembly a2 and one third magnetic assembly A3 are alternately arranged along the circumferential direction in the third region S3, and a plurality of second magnetic assemblies a2 are sequentially arranged along the circumferential direction in the fourth region S4, so as to prevent a folding angle of the folding portion from being larger than a preset angle by increasing a repulsive force of the second magnetic assembly a2 in the fourth region S4 and the first magnetic assembly a1 on the first gear 201, that is, to prevent over-folding.
In another embodiment of the present invention, as shown in fig. 6, fig. 6 is a schematic structural diagram of another second gear 202 provided in the embodiment of the present invention, the first gear 201 includes a first region S1 and a second region S2 arranged along a circumferential direction, and the second gear S2 includes a third region S3 and a fourth region S4 arranged along the circumferential direction. Further, a length L1 of the internal teeth of the first region S1 in the direction perpendicular to the circumferential direction is larger than a length L2 of the internal teeth of the second region S2 in the direction perpendicular to the circumferential direction, and a length L3 of the internal teeth of the third region S3 in the direction perpendicular to the circumferential direction is larger than a length L4 of the internal teeth of the fourth region S4 in the direction perpendicular to the circumferential direction, so that the folded portion is sufficiently flattened by the meshing connection of the teeth in the first region S1 and the teeth in the third region S3.
Optionally, in embodiments of the present invention, a tooth of the first gear 201 comprises a first magnetic assembly a 1. One tooth of the second gear 202 includes a second magnetic assembly a2 and the other tooth of the second gear 202 includes a third magnetic assembly A3. That is, one tooth of the gear is a magnetic assembly. It should be noted that, as shown in fig. 7, fig. 7 is a schematic diagram of an arrangement manner of a tooth according to an embodiment of the present invention, one pole of the N pole and the S pole of the magnet may be arranged inside a circle, and the other pole may be arranged outside the circle, so that one tooth of the gear is a magnetic component.
Of course, the present invention is not limited thereto, and in other embodiments, as shown in fig. 8 and 9, fig. 8 is a schematic structural diagram of another first gear 201 and a second gear 202 provided in the embodiment of the present invention, fig. 9 is a schematic structural diagram of another first gear 201 and a second gear 202 provided in the embodiment of the present invention, and one tooth of the first gear 201 includes one first magnetic assembly a 1. One tooth of the second gear 202 includes one second magnetic assembly a2 and one third magnetic assembly A3, i.e., one tooth includes two magnetic assemblies. Of course, in other embodiments a tooth may also include three or even more magnetic assemblies. Based on this, the magnetic components of the second gear 202 can be arranged more densely, so that the attraction force or the repulsion force between the first gear 201 and the second gear 202 is larger, and the foldable display device can be better kept in the folded or unfolded state.
And, as shown in fig. 8, the second magnetic assembly a2 and the third magnetic assembly A3 of the two adjacent teeth of the second gear 202 are adjacently arranged, that is, the second magnetic assembly a2 and the third magnetic assembly A3 are alternately arranged, or, as shown in fig. 9, the second magnetic assembly a2 and the second magnetic assembly a2 of the two adjacent teeth of the second gear 202 are adjacently arranged, and the third magnetic assembly A3 and the third magnetic assembly A3 of the two adjacent teeth of the second gear 202 are adjacently arranged, so as to generate an attractive force and a repulsive force at intervals, thereby avoiding an excessive damping induction.
In the embodiment of the present invention, as shown in fig. 1 to 3, the plurality of gears further includes a third gear 203 and a fourth gear 204 to increase the folding angle and the folding range of the foldable display device. The first gear 201 and the second gear 202 are located between the third gear 203 and the fourth gear 204, that is, the third gear 203, the first gear 201, the second gear 202 and the fourth gear 204 are arranged in sequence, and the third gear 203 is in meshed connection with the first gear 201, and the fourth gear 204 is in meshed connection with the second gear 202.
Alternatively, as shown in fig. 2, the first gear 201, the second gear 202, the third gear 203 and the fourth gear 204 each have a rotating shaft, and the rotating shaft drives the gears to rotate around the rotating shaft. The rotation axis O3 of the third gear 203 is fixedly connected with one of the support portions 21 so that the relative position of the support portion 21 to which the third gear 203 is connected is kept unchanged; the rotation shaft O4 of the fourth gear 204 is fixedly connected to the other support portion 21 so that the relative position of the support portion 21 to which the fourth gear 204 is connected is maintained.
Alternatively, the rotating shaft O1 of the first gear 201 is drivingly connected with the rotating shaft O3 of the third gear 203, i.e. the rotating shaft O1 of the first gear 201 is connected with the rotating shaft O3 of the third gear 203 through a transmission rod or the like, so that the first gear 201 and the third gear 203 can be driven to rotate with each other. The rotating shaft O1 of the first gear 201 and the rotating shaft O2 of the second gear 202 are in transmission connection, that is, the rotating shaft O1 of the first gear 201 and the rotating shaft O2 of the second gear 202 are connected through a transmission rod or the like, so that the first gear 201 and the second gear 202 can be driven to rotate with each other. The rotation shaft O2 of the second gear 202 is in transmission connection with the rotation shaft O4 of the fourth gear 204, i.e. the rotation shaft O2 of the second gear 202 is connected with the rotation shaft O4 of the fourth gear 204 through a transmission rod, etc. so that the second gear 202 and the fourth gear 204 can rotate together. The transmission rod for realizing transmission connection and the like can be made of flexible materials or can be made of rigid materials such as metal and the like, and the details are not repeated herein.
In the embodiment of the present invention, the shape of the teeth of the gear may be a triangle as shown in fig. 7, or may be a square as shown in fig. 8, and of course, in other embodiments, the shape of the teeth may be other shapes such as a trapezoid.
In the embodiment of the present invention, on the basis that the folding portion 20 includes the first gear 201 and the second gear 202, as shown in fig. 10, fig. 10 is a schematic top view structure of another supporting structure 2 provided in the embodiment of the present invention, and the folding portion 20 further includes at least two rotating assemblies 205, and optionally, as shown in fig. 10, the folding portion 20 includes four rotating assemblies 205, two rotating assemblies 205 are disposed on the left side of the gear, and two rotating assemblies 205 are disposed on the right side of the gear. That is, the number of the rotating assemblies 205 corresponds to the number of gears, and two rotating assemblies 205 are provided for each gear.
In the structure shown in fig. 10, each rotating assembly 205 includes a first rotating wheel 2050 and a first rotating shaft 2051, the first rotating shaft 2051 of one rotating assembly 205 is fixedly connected with the rotating shaft of the first gear 201, and the first rotating shaft 2051 of the other rotating assembly 205 is fixedly connected with the rotating shaft of the second gear 202. The rotating assembly 205 may be disposed outside the gear, such as the first gear 201, but the invention is not limited thereto, and in other embodiments, the rotating assembly 205 may also be disposed inside the gear, such as the first gear 201. In addition, as shown in fig. 10, a hinge or the like may be provided at a middle portion of the first gear 201 and the second gear 202, which is not described herein again.
Alternatively, as shown in fig. 10, the two rotating assemblies 205 of the folding portion 20 are sequentially arranged, the first rotating wheel 2050 of one rotating assembly 205 is fixedly connected with one of the supporting portions 21, the first rotating wheel 2050 of the other rotating assembly 205 is fixedly connected with the other supporting portion 21, so that the first rotating wheel 2050 is fixed and the first rotating wheel 2051 rotates relative to the first rotating wheel 2050.
In an embodiment of the present invention, as shown in fig. 11, fig. 11 is a schematic cross-sectional structure diagram of a first rotor 2050 and a first rotor shaft 2051 according to an embodiment of the present invention, where the first rotor 2050 includes a plurality of fourth magnetic assemblies a4, and a plurality of fourth magnetic assemblies a4 are sequentially arranged along a circumferential direction of the first rotor 2050. The first rotation shaft 2051 includes a plurality of fifth magnetic assemblies a5 and a plurality of sixth magnetic assemblies a6, and at least one fifth magnetic assembly a5 and at least one sixth magnetic assembly a6 are alternately arranged in a circumferential direction of the first rotation shaft 2051. Also, the fourth magnetic assembly a4 and the fifth magnetic assembly a5 are identical in magnetism, and the fourth magnetic assembly a4 and the sixth magnetic assembly a6 are opposite in magnetism.
Based on this, the foldable display device may be maintained in the folded or unfolded state by a repulsive force between the fourth magnetic assembly a4 and the fifth magnetic assembly a5 and an attractive force between the fourth magnetic assembly a4 and the sixth magnetic assembly a 6. Moreover, during the rotation of the first gear 201 and the second gear 202, the repulsive force between the fourth magnetic assembly a4 and the fifth magnetic assembly a5 and the attractive force between the fourth magnetic assembly a4 and the sixth magnetic assembly a6 can provide a power for the rotation of the first gear 201 and the second gear 202, which is more beneficial to the folding and unfolding of the foldable display device. And generates damping sense in the process of rotation through suction and repulsion so as to avoid over-fast folding or unfolding.
In another embodiment of the present invention, as shown in fig. 12, fig. 12 is a schematic cross-sectional structure view of a first rotor 2050 and a first rotor shaft 2051 according to an embodiment of the present invention, where the first rotor 2050 includes a plurality of fourth magnetic assemblies a4, and a plurality of fourth magnetic assemblies a4 are sequentially arranged along a circumferential direction of the first rotor 2050. The first rotation shaft 2051 includes a plurality of fifth magnetic assemblies a5, a plurality of fifth magnetic assemblies a5 are sequentially arranged in a circumferential direction of the first rotation shaft 2051, and the magnetism of the fourth magnetic assembly a4 and the fifth magnetic assembly a5 are opposite.
Based on this, the foldable display device may be maintained in the folded or unfolded state by the attractive force between the fourth magnetic assembly a4 and the fifth magnetic assembly a 5. And, during the rotation of the first gear 201 and the second gear 202, the rotation power can be provided to the first gear 201 and the second gear 202 through the attraction between the fourth magnetic assembly a4 and the fifth magnetic assembly a5, and the damping feeling can be generated during the rotation through the attraction, so as to avoid the too fast folding or unfolding.
In another embodiment of the present invention, as shown in fig. 13, fig. 13 is a schematic cross-sectional structure view of another first rotor 2050 and a first rotor shaft 2051 according to an embodiment of the present invention, the first rotor shaft 2051 includes a plurality of fourth magnetic assemblies a4, and the plurality of fourth magnetic assemblies a4 are sequentially arranged along a circumferential direction of the first rotor shaft 2051. The first rotor 2050 includes a plurality of fifth magnetic assemblies a5 and a plurality of sixth magnetic assemblies a6, at least one fifth magnetic assembly a5 and at least one sixth magnetic assembly a6 are alternately arranged in a circumferential direction of the first rotor 2050, and the magnetism of the fourth magnetic assembly a4 and the magnetism of the fifth magnetic assembly a5 are the same, and the magnetism of the fourth magnetic assembly a4 and the magnetism of the sixth magnetic assembly a6 are opposite.
Based on this, the foldable display device may be maintained in the folded or unfolded state by a repulsive force between the fourth magnetic assembly a4 and the fifth magnetic assembly a5 and an attractive force between the fourth magnetic assembly a4 and the sixth magnetic assembly a 6. Moreover, during the rotation of the first gear 201 and the second gear 202, the repulsive force between the fourth magnetic assembly a4 and the fifth magnetic assembly a5 and the attractive force between the fourth magnetic assembly a4 and the sixth magnetic assembly a6 can provide a power for the rotation of the first gear 201 and the second gear 202, which is more beneficial to the folding and unfolding of the foldable display device. And generates damping sense in the process of rotation through suction and repulsion so as to avoid over-fast folding or unfolding.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A foldable display device comprising a flexible display panel and a support structure located at the back of the flexible display panel;
the flexible display panel comprises a folding area and non-folding areas positioned on two sides of the folding area;
the support structure comprises a folding part and support parts positioned on two sides of the folding part, the folding part is positioned in the folding area, and the support parts are positioned in the non-folding area;
the folding part comprises a plurality of gears, the gears comprise at least a first gear and a second gear, and the first gear is in meshed connection with the second gear;
the first gear comprises a plurality of first magnetic assemblies which are sequentially arranged along the circumferential direction of the first gear;
the second gear comprises a plurality of second magnetic assemblies and a plurality of third magnetic assemblies, and at least one second magnetic assembly and at least one third magnetic assembly are alternately arranged along the circumferential direction of the second gear;
the magnetism of the first magnetic component is the same as that of the second magnetic component, and the magnetism of the first magnetic component is opposite to that of the third magnetic component;
the first gear includes a first region and a second region disposed along the circumferential direction, and the second gear includes a third region and a fourth region disposed along the circumferential direction; the length of the first region internal teeth in the direction perpendicular to the circumferential direction is larger than the length of the second region internal teeth in the direction perpendicular to the circumferential direction, and the length of the third region internal teeth in the direction perpendicular to the circumferential direction is larger than the length of the fourth region internal teeth in the direction perpendicular to the circumferential direction, so that the folded portion is flattened by the tooth-meshing connection in the first region and the third region.
2. The foldable display device of claim 1, wherein a tooth of said first gear comprises one of said first magnetic components;
one tooth of said second gear comprises one said second magnetic assembly;
the other tooth of the second gear comprises one of the third magnetic assemblies.
3. The foldable display device of claim 1, wherein a tooth of said first gear comprises one of said first magnetic components;
one tooth of the second gear comprises the second magnetic assembly and the third magnetic assembly, the second magnetic assembly and the third magnetic assembly in two adjacent teeth of the second gear are adjacently arranged, or the second magnetic assembly and the second magnetic assembly in two adjacent teeth of the second gear are adjacently arranged, and the third magnetic assembly in two adjacent teeth of the second gear are adjacently arranged.
4. The foldable display device of any one of claims 1 to 3, wherein the gears further comprise a third gear and a fourth gear;
the first gear and the second gear are positioned between the third gear and the fourth gear, the third gear is meshed with the first gear, and the fourth gear is meshed with the second gear.
5. The foldable display device of claim 4, wherein the first gear, the second gear, the third gear and the fourth gear each have a rotation shaft that drives a gear to rotate around the rotation shaft;
the rotating shaft of the third gear is fixedly connected with one of the supporting parts, so that the relative position of the third gear and the supporting part connected with the third gear is kept unchanged;
the rotating shaft of the fourth gear is fixedly connected with the other supporting part, so that the relative position of the fourth gear and the supporting part connected with the fourth gear is kept unchanged.
6. The foldable display device of claim 5, wherein the rotating shaft of the first gear is in transmission connection with the rotating shaft of the third gear, the rotating shaft of the first gear is in transmission connection with the rotating shaft of the second gear, and the rotating shaft of the second gear is in transmission connection with the rotating shaft of the fourth gear.
7. The foldable display device of claim 4, wherein the teeth of the gear are triangular or square in shape.
8. The foldable display device of claim 1, wherein said folding portion further comprises at least two rotating assemblies;
the rotating assembly comprises a first rotating wheel and a first rotating shaft, one of the first rotating shaft of the rotating assembly is fixedly connected with the rotating shaft of the first gear, and the other of the first rotating shaft of the rotating assembly is fixedly connected with the rotating shaft of the second gear.
9. The foldable display device of claim 8, wherein the first wheel of one of the rotation assemblies is fixedly connected to one of the support portions and the first wheel of the other rotation assembly is fixedly connected to the other support portion.
10. The foldable display device of claim 8 or 9, wherein the first wheel comprises a plurality of fourth magnetic assemblies, the plurality of fourth magnetic assemblies being arranged in sequence along a circumferential direction of the first wheel;
the first rotating shaft comprises a plurality of fifth magnetic assemblies and a plurality of sixth magnetic assemblies, and at least one fifth magnetic assembly and at least one sixth magnetic assembly are alternately arranged along the circumferential direction of the first rotating shaft;
the fourth magnetic assembly and the fifth magnetic assembly have the same magnetism, and the fourth magnetic assembly and the sixth magnetic assembly have opposite magnetism.
11. The foldable display device of claim 8 or 9, wherein the first wheel comprises a plurality of fourth magnetic assemblies, the plurality of fourth magnetic assemblies being arranged in sequence along a circumferential direction of the first wheel;
the first rotating shaft comprises a plurality of fifth magnetic assemblies, and the fifth magnetic assemblies are sequentially arranged along the circumferential direction of the first rotating shaft;
the fourth magnetic component and the fifth magnetic component are opposite in magnetism.
12. The foldable display device of claim 8 or 9, wherein the first rotation shaft comprises a plurality of fourth magnetic assemblies, the plurality of fourth magnetic assemblies being arranged in sequence along a circumferential direction of the first rotation shaft;
the first rotating wheel comprises a plurality of fifth magnetic assemblies and a plurality of sixth magnetic assemblies, and at least one fifth magnetic assembly and at least one sixth magnetic assembly are alternately arranged along the circumferential direction of the first rotating wheel;
the fourth magnetic assembly and the fifth magnetic assembly have the same magnetism, and the fourth magnetic assembly and the sixth magnetic assembly have opposite magnetism.
13. The foldable display device of claim 1, wherein the second gear comprises a third region and a fourth region arranged along the circumferential direction, wherein one of the second magnetic assemblies and one of the third magnetic assemblies are alternately arranged along the circumferential direction in the third region, and wherein a plurality of the second magnetic assemblies are sequentially arranged along the circumferential direction in the fourth region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131102.2A CN111210729B (en) | 2020-02-28 | 2020-02-28 | Foldable display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131102.2A CN111210729B (en) | 2020-02-28 | 2020-02-28 | Foldable display device |
Publications (2)
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| CN111785160B (en) * | 2020-06-30 | 2022-08-16 | 维沃移动通信有限公司 | Folding electronic device |
| CN115188332A (en) | 2020-07-30 | 2022-10-14 | 华为技术有限公司 | Display module assembly and electronic equipment |
| CN112133203B (en) * | 2020-10-16 | 2022-05-20 | 昆山国显光电有限公司 | Supporting device and display device |
| CN113450646B (en) * | 2021-03-04 | 2022-11-22 | 京东方科技集团股份有限公司 | Folding display device and electronic equipment |
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