CN112652248B

CN112652248B - Folding display panel and folding display device

Info

Publication number: CN112652248B
Application number: CN202110012141.5A
Authority: CN
Inventors: 张杨
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2022-07-12
Anticipated expiration: 2041-01-06
Also published as: CN112652248A

Abstract

The embodiment of the application discloses folding display panel and folding display device adopts a drive assembly among this folding display panel, and this drive assembly connects first sub-supporting part with the sub-supporting part of second, drive assembly is used for the drive first sub-supporting part with the sub-supporting part of second moves or motion dorsad in opposite directions, in order to drive the display screen is folding or expand. Because this drive assembly is the first sub-supporting part of drive with the second sub-supporting part carries out motion or motion dorsad in opposite directions, that is to say first sub-supporting part and second sub-supporting part take place the motion simultaneously so that folding display panel folds, therefore the stress that receives when first sub-supporting part and second sub-supporting part are folded can be shared equally, promote the laminating between supporting part and the display screen and glue cohesive energy, the time that the extension drops bad emergence, and then improve folding display panel's life-span.

Description

Folding display panel and folding display device

Technical Field

The application relates to the technical field of display, in particular to a folding display panel and a folding display device.

Background

In the research and practice process, the inventor of the application finds that in the modern communication industry, the market demand of products such as mobile phones, televisions, flat panels, notebooks, digital cameras and the like is more and more increased, and various display devices are developing towards being bendable.

The bending form of the bending product is various, wherein the water drop type bending is favored by the market due to the space utilization, but the water drop type screen is easy to fall off during the use process.

Disclosure of Invention

The embodiment of the application provides a folding display panel and a folding display device, and the problem that a screen falls off in the use process of a folding screen can be solved.

The embodiment of the application provides a folding display panel, includes:

the display screen is provided with a display surface and a non-display surface which are oppositely arranged, and a first edge and a second edge which are oppositely arranged, wherein the first edge and the second edge are arranged along a first direction;

the supporting part is arranged on the non-display surface and comprises a first sub-supporting part and a second sub-supporting part, the first sub-supporting part is close to the first edge, and the second sub-supporting part is close to the second edge;

the driving assembly is connected with the first sub-supporting portion and the second sub-supporting portion and used for driving the first sub-supporting portion and the second sub-supporting portion to move oppositely or move backwards so as to drive the display screen to be folded or unfolded.

Optionally, in some embodiments of the present application, the driving assembly includes a connecting shaft, a transmission gear, an internal gear, and a planetary gear; the axial extension line of the connecting shaft is parallel to the first direction, the connecting shaft is arranged between the first sub-supporting part and the second sub-supporting part, and the connecting shaft comprises a first end and a second end which are oppositely arranged; the first end is provided with the transmission gear, the transmission gear is meshed with the internal gear through the planetary gear, and the internal gear is connected with the first sub-supporting part; the second end is connected with the second sub-supporting part, and the second sub-supporting part rotates along with the rotation of the connecting shaft.

Optionally, in some embodiments of the present application, the driving assembly further comprises a semicircular gear, and the transmission gear comprises a first transmission gear and a second transmission gear; the first end sets up first transmission gear, first transmission gear passes through planetary gear with the internal gear meshing, the second end sets up second transmission gear, second transmission gear with the semicircle gear meshing, the semicircle gear with the sub-supporting part of second is connected.

Optionally, in some embodiments of the present application, the driving assembly includes a connecting portion, a worm wheel, a first worm, and a second worm; connecting portion axial extension line with the first direction is parallel, connecting portion set up the supporting part is kept away from one side of display screen, and respectively with first sub-supporting part with second sub-supporting part swing joint, connecting portion are close to one side of display screen sets up the worm wheel, the rotation axis axial extension line of worm wheel is perpendicular the surface of display screen, the both sides of worm wheel set up relatively first worm with the second worm, the worm wheel through with first worm meshing is connected first sub-supporting part, the worm wheel through with second worm meshing is connected second sub-supporting part.

Optionally, in some embodiments of the present application, the display device further includes a circuit module, a receiving portion is disposed in the supporting portion, the circuit module is located in the receiving portion, the circuit module is connected to the driving assembly, and the circuit module is configured to control the driving assembly to move in opposite directions or move in a back-to-back direction, so as to drive the display screen to fold or unfold.

Optionally, in some embodiments of the present application, the display device further includes a detection module and a control module, the control module is connected to the detection module and the display screen, and when the detection module detects that the first sub-support portion and the second sub-support portion are folded in a direction away from the display screen, the control module controls the display screen to display in a split screen manner.

Optionally, in some embodiments of the present application, the display device further includes a detection module and a control module, the control module connects the detection module and the display screen, and when the detection module detects that the first sub-supporting portion and the second sub-supporting portion are folded to 90 ° toward the direction close to the display screen, the control module controls the display screen to close the display.

Optionally, in some embodiments of the present application, the driving assembly is provided in plurality, and the plurality of driving assemblies are arranged along the first direction.

Optionally, in some embodiments of the present application, the rotation angle of the first and second sub-support portions is 180 ° or less.

Correspondingly, the embodiment of the application also provides a folding display device, which comprises the folding display panel.

The embodiment of the application adopts a driving assembly in the folding display panel, the driving assembly is connected with the first sub-supporting part and the second sub-supporting part, and the driving assembly is used for driving the first sub-supporting part and the second sub-supporting part to move oppositely or move backwards so as to drive the display screen to be folded or unfolded. Because this drive assembly is the first sub-supporting part of drive with the second sub-supporting part carries out motion in opposite directions or motion dorsad, that is to say first sub-supporting part and second sub-supporting part take place the motion simultaneously so that folding display panel folds, therefore the stress that receives when can share first sub-supporting part and second sub-supporting part folding equally, promote the laminating between supporting part and the display screen and glue cohesive energy, the extension drops the time that bad emergence, and then improves folding display panel's life-span.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 first structural diagram of an unfolded state of a foldable display panel according to an embodiment of the present application;

fig. 2 is a first structural diagram of a folded display panel according to an embodiment of the present application in a folded state;

fig. 3 is a schematic partial perspective view of a first foldable display panel provided in an embodiment of the present application;

fig. 4 is a second partial perspective view of a foldable display panel provided in the embodiment of the present application;

fig. 5 is a third partial perspective view of a foldable display panel provided in the embodiment of the present application;

FIG. 6 is a schematic diagram of a second structure of an unfolded state of a foldable display panel according to an embodiment of the present application;

fig. 7 is a second structural diagram of a folded display panel provided in the embodiment of the present application in a folded state;

fig. 8 is a schematic top view of a structure of a foldable display panel according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.

The embodiment of the application provides a folding display panel and a folding display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

Referring to fig. 1 and fig. 2, fig. 1 is a first structural diagram of an unfolded state of a foldable display panel 10 according to an embodiment of the present application, and fig. 2 is a first structural diagram of a folded state of the foldable display panel 10 according to the embodiment of the present application. The foldable display panel 10 includes a display screen 101, a support portion 102, and a driving assembly 103, the display screen 101 has a display surface 101a and a non-display surface 101b disposed opposite to each other, and a first side 101c and a second side 101d disposed opposite to each other, and the first side 101c and the second side 101d are disposed along a first direction. The supporting portion 102 is disposed on the non-display surface 101b, and the supporting portion 102 includes a first sub-supporting portion 1021 and a second sub-supporting portion 1022, where the first sub-supporting portion 1021 is adjacent to the first edge 101c, and the second sub-supporting portion 1022 is adjacent to the second edge 101 d. The driving assembly 103 is connected to the first sub-support 1021 and the second sub-support 1022, and the driving assembly 103 is used for driving the first sub-support 1021 and the second sub-support 1022 to move towards or away from each other, so as to fold or unfold the display screen 101. The first direction in fig. 1 and 2 is a direction perpendicular to the paper plane (not shown).

The foldable display panel 10 provided in the embodiment of the present application employs a driving assembly 103, the driving assembly 103 is connected to the first sub-support 1021 and the second sub-support 1022, and the driving assembly 103 is configured to drive the first sub-support 1021 and the second sub-support 1022 to move towards each other or move away from each other, so as to drive the display screen 101 to fold or unfold. Because the driving assembly 103 drives the first sub-support 1021 and the second sub-support 1022 to move in opposite directions or move away from each other, that is, the first sub-support 1021 and the second sub-support 1022 move simultaneously to fold the foldable display panel 10, the stress applied when the first sub-support 1021 and the second sub-support 1022 are folded can be shared, the cohesive energy of the adhesive between the support 102 and the display 101 is increased, the time of poor falling is prolonged, and the service life of the foldable display panel 10 is further prolonged.

The display screen 101 may be an active Light Emitting display panel, such as an Organic Light Emitting Diode (OLED) display panel, an Active Matrix Organic Light Emitting Diode (AMOLED) display panel, a Passive Matrix Organic Light Emitting Diode (PMOLED) display panel, a Quantum Dot Light Emitting Diode (QLED) display panel, a Micro Light Emitting Diode (Micro Light Emitting Diode, Micro-LED) display panel, and a sub-millimeter Light Emitting Diode (Mini-LED) display panel; the Display panel may be a passive light emitting type Display panel such as a Liquid Crystal Display (LCD) panel.

The display screen 101 includes a Back Panel (BP), a display layer (Panel), a Polarizer (POL), an adhesive layer, an organic layer, an ultra-thin flexible glass layer, and an encapsulation layer, which are sequentially stacked.

The Adhesive layer may be Optical Clear Adhesive (OCA), and the Adhesive layer is used for gluing a transparent optical element. The OCA is colorless and transparent, has the light transmittance of more than 90 percent, has good cementing strength, can be cured at room temperature or middle temperature, and has simple manufacturing process.

The material of the organic layer is selected from one or more of Polyimide (PI), Polyethylene naphthalate (PEN), Polyethylene terephthalate (PET), Polycarbonate (PC), Polyetherimide (PEI), and Polyethersulfone (PES).

The ultra-thin flexible glass layer (UltraThinglass, UTG) has the characteristics of being foldable, good in flexibility, smooth in hand feeling, good in uniformity and the like, can be applied to various foldable devices according to different requirements of users on the foldable screen, and can improve user experience to a great extent due to smooth and flat texture brought by the ultra-thin flexible glass.

The encapsulation layer comprises at least one inorganic layer and at least one organic layer which are alternately stacked. The inorganic layer may be selected from inorganic materials such as alumina, silicon oxide, silicon nitride, silicon oxynitride, silicon carbide, titanium oxide, zirconium oxide, and zinc oxide. The organic layer is selected from organic materials such as epoxy resin, Polyimide (PI), Polyethylene terephthalate (PET), Polycarbonate (PC), Polyethylene (PE), and Polyacrylate (Polyacrylate).

It should be noted that the display screen 101 may further include other film layers or components, which are not described herein in detail.

The supporting portion 102 may be made of metal or metal alloy, and specifically, the material of the supporting portion 102 is one or more of nickel (Ni), iron (Fe), and cobalt (Co), or stainless steel (SUS).

Wherein, be connected through the glue film between display screen 101 and the supporting part 102, one side that supporting part 102 is close to display screen 101 sets up to concave-convex structure, and concave-convex structure can increase the area of contact of supporting part 102 and display screen 101, and when adopting the glue film to bond display screen 101 and supporting part 102, can avoid display screen 101 and supporting part 102 to take place to separate, has further avoided folding display panel 10's the bad problem that drops. Meanwhile, the concave-convex structure can help to disperse stress, and the concave-convex structure adopted by the supporting part 102 can have better bending performance.

The supporting portion 102 is provided with a folding seam 1023 corresponding to the driving component 103, the folding seam 1023 can be a through hole penetrating up and down as shown in fig. 2, the folding seam 1023 can also be set as a slit, the slit is opened at one side close to the driving component 103, and the supporting portion 102 at one side close to the display screen 101 is connected or disconnected. The crease 1023 is arranged on the supporting part 102, so that the folding or unfolding of the folding display panel 10 can be facilitated, and the stress on the display screen 101 or the supporting part 102 at the folding position can be further reduced, so that the service life of the folding display panel 10 can be prolonged.

Referring to fig. 3, fig. 3 is a first partial perspective view of a foldable display panel 10 according to an embodiment of the present disclosure. In some embodiments of the present application, the drive assembly 103 includes a connecting shaft 1031, a transfer gear 1032, an internal gear 1033, and a planetary gear 1034. An axial extension line of the connecting shaft 1031 is parallel to the first direction, the connecting shaft 1031 is disposed between the first and second sub-supports 1021, 1022, and the connecting shaft 1031 includes a first end 1031a and a second end 1031b disposed opposite to each other. The first end 1031a is provided with a transmission gear 1032, the transmission gear 1032 meshes with an internal gear 1033 through a planetary gear 1034, and the internal gear 1033 is connected with the first sub-support 1021. The second end 1031b is connected to a second sub-support 1022, and the second sub-support 1022 rotates along with the rotation of the connecting shaft 1031, wherein the first direction is a direction extending along the x-axis in fig. 3. The first sub-support 1021 and the inner gear 1033 may be integrated or fixedly connected. The second sub-support 1022 may be integrated with the connecting shaft 1031, or may be fixedly connected thereto.

In the embodiment shown in fig. 3, when the internal gear 1033 rotates clockwise, the planetary gear 1034 and the internal gear 1033 move in the same direction, the transmission gear 1032 moves counterclockwise due to the clockwise movement of the planetary gear 1034, and then the second sub-support part 1022 connected to the connection shaft 1031 also moves counterclockwise together with the transmission gear 1032, so as to satisfy the purpose of the joint movement of the first sub-support part 1021 and the second sub-support part 1022 when the whole foldable display panel 10 is bent. With the structure of the driving assembly 103 illustrated in fig. 3, when the first sub-support 1021 is reversed, the second sub-support 1022 is driven to reverse the direction in which the first sub-support 1021 is reversed through the transmission of the gear set in the driving assembly 103, that is, the first sub-support 1021 and the second sub-support 1022 are driven to move towards or away from each other. Therefore, the stress applied to the connection between the driving assembly 103 and the first and second sub-supports 1021 and 1022 can be effectively equalized.

Referring to fig. 4, fig. 4 is a second partial perspective view of the foldable display panel 10 according to the embodiment of the present disclosure. In some embodiments of the present application, drive assembly 103 further comprises a half-circle gear 1035, and drive gear 1032 comprises a first drive gear 1032a and a second drive gear 1032 b. The first end 1031a is provided with a first transmission gear 1032a, the first transmission gear 1032a is meshed with the internal gear 1033 through the planet gear 1034, the second end 1031b is provided with a second transmission gear 1032b, the second transmission gear 1032b is meshed with the semi-circular gear 1035, and the semi-circular gear 1035 is connected with the second sub-support 1022, wherein the first direction is a direction extending along the x-axis in fig. 4.

In the embodiment shown in fig. 4, the transmission manner of the transmission gear 1032, the internal gear 1033 and the planetary gear 1034 is the same as that of fig. 3, and will not be described again. The difference from the previous embodiment is that the second sub-support 1022 and the driving assembly 103 are also in transmission connection through gears. The mode is convenient for assembling and disassembling the driving assembly 103, the rotating speed of the driving assembly 103 can be adjusted by adjusting the number of teeth of the gear and the size of the gear, the driving assembly 103 is more adaptive, and the driving assembly can be applied to folding display panels 10 with different sizes as required. In addition, the second sub-supporting part 1022 is driven to turn in a gear transmission manner, so that the problem of fracture or poor falling caused by multiple turns can be avoided.

Referring to fig. 5, fig. 5 is a third partial perspective view of the foldable display panel 10 according to the embodiment of the present disclosure. In some embodiments of the present application, the drive assembly 103 includes a connection portion 1036, a worm gear 1037, a first worm 1038, and a second worm 1039. The axial extension line of the connecting portion 1036 is parallel to the first direction, the connecting portion 1036 is disposed on one side of the supporting portion 102 away from the display screen 101 and is movably connected to the first sub-supporting portion 1021 and the second sub-supporting portion 1022, a worm wheel 1037 is disposed on one side of the connecting portion 1036 close to the display screen 101, an axial extension line of a rotation axis of the worm wheel 1037 is perpendicular to the surface of the display screen 101, and the worm wheel 1037 is rotatably connected to the connecting portion 1036. The worm wheel 1037 is provided with a first worm 1038 and a second worm 1039 at two opposite sides thereof, the worm wheel 1037 is connected with the first sub-support 1021 by meshing with the first worm 1038, and the worm wheel 1037 is connected with the second sub-support 1022 by meshing with the second worm 1039, wherein the first direction is a direction extending along the x-axis in fig. 5.

In the embodiment shown in fig. 5, the rotation of the worm wheel 1037 can simultaneously rotate the first worm 1038 and the second worm 1039, and the driving assembly 103 has a simple structure and is easy to manufacture.

Referring to fig. 6, fig. 6 is a second structural diagram of the foldable display panel 10 according to the embodiment of the present disclosure in an unfolded state. In some embodiments of the present application, the foldable display panel 10 further includes a circuit module 104, a receiving portion 102a is disposed in the supporting portion 102, the circuit module 104 is located in the receiving portion 102a, the circuit module 104 is connected to the driving assembly 103, and the circuit module 104 is configured to control the driving assembly 103 to move towards or away from each other, so as to drive the display screen 101 to fold or unfold. Other parts of the foldable display panel 10 may also be disposed in the receiving portion 102a, which is not described herein.

The driving assembly 103 drives the supporting portions 102 to move towards or away from each other under the driving force, so as to fold or unfold the display screen 101. Wherein the driving force may be an external force, such as a manual force of a user, for example, by turning the first sub-support 1021 or the second sub-support 1022 to bring the other sub-support to turn simultaneously, so as to fold or unfold the display 101. The driving force may also be a force generated inside the foldable display panel 10, for example, the driving force generated by the circuit module 104.

The circuit module 104 may be a driving motor, and taking the structure of the driving assembly 103 in fig. 5 as an example, the driving motor is connected to the worm wheel 1037 to electrically control the worm wheel 1037 to rotate.

The circuit module 104 may include a motherboard and a processor integrated on the motherboard and electrically connected to the display screen 101 and the driving component 103. The processor may control the driving assembly to generate a driving force according to a control instruction, such as a first operation instruction, so as to drive the supporting portions 102 to move towards or away from each other, and further drive the display screen 101 to fold or unfold. The first operation instruction may include a sliding operation, and the processor is configured to control the transmission gear 1032 or the worm wheel 1037 to rotate towards a preset direction according to the sliding operation in the preset direction, so as to drive the first sub-support 1021 and the second sub-support 1022 to move towards each other or move away from each other. Wherein the slide operation is such as a slide operation performed on the display screen 101. The specific control method is as follows: the sliding operation is performed in a first direction and the processor controls the worm wheel 1037 to rotate in the first direction.

Further, the processor may control the angle at which the driving gear 1032 or the worm wheel 1037 rotates according to the sliding distance of the sliding operation, thereby controlling the angle at which the display screen 101 is folded. The sliding distance may be a distance perpendicular to the axial direction of the first direction. The processor can be used to control the rotation speed of the transmission gear 1032 or the worm wheel 1037 according to the sliding force of the sliding operation, or drive the folding or unfolding speed of the display screen 101. The sliding force of the sliding operation can be the force for pressing the display screen 101, and the force can be detected by adopting a pressure sensor. For example, if the sliding force of the sliding operation is large, the processor controls the rotation speed of the transmission gear 1032 or the worm wheel 1037 to be increased; the sliding force of the sliding operation is small, and the processor controls the rotation speed of the transmission gear 1032 or the worm wheel 1037 to be slow.

In some embodiments, the first operation instruction further includes a click operation or a long press operation, and the processor is configured to control the transmission gear 1032 or the worm wheel 1037 to rotate at a first rotation speed according to the click operation or the long press operation at a preset position, so as to fold or unfold the display screen 101. It should be noted that a physical key or a virtual key may be provided on the foldable display panel 10, and the processor controls the driving gear 1032 or the worm wheel 1037 to rotate at the first speed through a click operation or a long-press operation of the physical key or the virtual key. The first speed may be an average speed.

The control command is not limited to this. Such as controlling the rotation of the drive gear 1032 or worm wheel 1037 based on gravity, acceleration direction, voice control, etc.

Wherein, a telescopic component can be arranged between the supporting part 102 and the driving component 103, and the telescopic component comprises a telescopic rod, a sliding rail or a scissor fork component and the like. When the foldable display panel 10 is folded, the support portion 102 is controlled by the telescopic member to extend in a direction away from the driving assembly 103, and when the foldable display panel 10 is unfolded, the support portion 102 is controlled by the telescopic member to retract in a direction close to the driving assembly 103. The telescopic member may be connected to the circuit module 104, so that the foldable display panel 10 can be extended or retracted by the motor or the control command when being electrically controlled to be folded or unfolded. The telescopic component is arranged, so that when the foldable display panel 10 is folded, stress received by the supporting part 102 at the bent part is reduced, the problem of fracture or poor falling caused by multiple times of overturning is further avoided, and the service life of the foldable display panel 10 can be prolonged.

Referring to fig. 7, fig. 7 is a second structural diagram of a folded display panel 10 according to an embodiment of the present disclosure. In some embodiments of the present application, the display device further includes a detection module 105 and a control module 106, the control module 106 connects the detection module 105 with the display screen 101, and when the detection module 105 detects that the first sub-support 1021 and the second sub-support 1022 are folded away from the display screen 101, the control module 106 controls the display screen 101 to display in a split-screen manner. When the detection module 105 detects that the first sub-support 1021 and the second sub-support 1022 are folded to 90 ° in a direction approaching the display 101, the control module 106 controls the display 101 to close the display.

The detection module 105 includes a distance detection module, a sound detection module, or a touch detection module.

When the detection module 105 is a distance detection module, the detection module is disposed on the first sub-support 1021 and the second sub-support 1022, respectively, and the distance detection module detects a distance between the first sub-support 1021 and the second sub-support 1022 and inputs an instruction to the control module to control the full-screen display, the split-screen display, or the close display of the display screen 101. In this way, the display state of the display screen 101 can be intelligently controlled by determining the state of the support part 102 by detecting the distance between the first sub-support part 1021 and the second sub-support part 1022 without performing other operations. In this way, the folding or unfolding of the display screen 101 can be controlled quickly and conveniently.

When the detection module 105 is a sound detection module, the detection module 105 receives a sound instruction and inputs an instruction to the control module to control the display 101 to display in a full screen, a split screen, or close the display. When the detecting module 105 is a touch detecting module, the detecting module 105 receives a touch operation on the display screen 101 or the supporting portion 102 and inputs an instruction to the control module to control the display screen 101 to display in a full screen, a split screen, or close the display. This operation is very convenient, and in some cases, the display screen 101 is controlled to be folded or unfolded by a sound signal, which undoubtedly provides the operation convenience.

The display control manner of the foldable display panel 10 by the detection module 105 and the control module 106 is only an example, and the foldable display panel 10 in the present application may also adopt other manners, which is not limited thereto.

Referring to fig. 8, fig. 8 is a schematic top view of a structure of a foldable display panel 10 according to an embodiment of the present disclosure. In some embodiments of the present application, the plurality of driving assemblies 103 are provided, and the plurality of driving assemblies 103 are arranged along a first direction, wherein the first direction is a direction extending axially along the x-axis in fig. 8. The first sub-support 1021 and the second sub-support 1022 can be turned over by disposing a plurality of driving elements 103 in the first direction, so as to drive the foldable display panel 10 to fold or unfold. Therefore, the whole driving assembly 103 is not needed, which can save materials and reduce cost, and the weight of the foldable display panel 10 can be reduced, so that the foldable display panel 10 is thinner.

Wherein, the surface of the driving component 103 may be further provided with a housing, which may play a role of protecting the driving component 103 on one hand, and may make the foldable display panel 10 more beautiful on the other hand.

Optionally, in some embodiments of the present application, the rotation angle of the first and second sub-support portions is 180 ° or less. That is to say, the foldable display panel 10 can be folded in a 360 ° manner, and can be folded in multiple angles, so that the foldable display panel 10 can adapt to different application scenarios.

It should be noted that the thickness and width of the supporting portion 102, the size and number of the gears, and the position and shape of the components shown in the above embodiments are only examples, and are not intended to limit the present application.

Correspondingly, the embodiment of the application also provides a folding display device. The folding display device comprises the folding display panel. The foldable display device provided in this embodiment of the application may be at least one of a smart phone (smartphone), a tablet personal computer (tablet personal computer), a mobile phone (mobile phone), a video phone, an electronic book reader (e-book reader), a laptop computer (laptop PC), a netbook computer (netbook computer), a workstation (workstation), a server, a personal digital assistant (personal digital assistant), a portable media player (portable multimedia player), an MP3 player, a mobile medical machine, a camera, a game machine, a digital camera, a car navigator, an electronic billboard, an automatic teller machine, a smart bracelet, a smart watch, a Virtual Reality (VR) device, or a wearable device (wearable device). The above embodiments have described the foldable display panel in detail, and therefore, in the embodiments of the present application, the foldable display panel is not described in detail.

The folding display device provided by the embodiment of the application comprises the folding display panel, wherein a driving assembly is adopted in the folding display panel and is connected with the first sub-supporting part and the second sub-supporting part, and the driving assembly is used for driving the first sub-supporting part and the second sub-supporting part to move oppositely or move reversely so as to drive the display screen to be folded or unfolded. Because this drive assembly is the first sub-supporting part of drive with the second sub-supporting part carries out motion or reverse motion in opposite directions, that is to say first sub-supporting part and second sub-supporting part take place the motion simultaneously so that folding display panel folds, therefore can share the stress that first sub-supporting part and second sub-supporting part received when folding all, promote the laminating between supporting part and the display screen and glue cohesive energy, the extension falls the time that bad emergence, and then improves folding display panel's life-span.

The foregoing detailed description is directed to a foldable display panel and a foldable display device provided in the embodiments of the present application, and specific examples are applied herein to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A foldable display panel, comprising:

the driving assembly is connected with the first sub-supporting part and the second sub-supporting part and used for driving the first sub-supporting part and the second sub-supporting part to move oppositely or move backwards so as to drive the display screen to be folded or unfolded;

the driving assembly comprises a connecting shaft, a transmission gear, an internal gear and a planetary gear; the first direction is parallel to an axial extension line of the connecting shaft, the connecting shaft is arranged between the first sub-supporting part and the second sub-supporting part, and the connecting shaft comprises a first end and a second end which are oppositely arranged; the first end is provided with the transmission gear, the transmission gear is meshed with the internal gear through the planetary gear, and the internal gear is connected with the first sub-supporting part; the second end is connected with the second sub-supporting part, and the second sub-supporting part rotates along with the rotation of the connecting shaft;

the driving assembly further comprises a semicircular gear, and the transmission gear comprises a first transmission gear and a second transmission gear; the first end is provided with the first transmission gear which is meshed with the internal gear through the planet gear, the second end is provided with the second transmission gear which is meshed with the semicircular gear, and the semicircular gear is connected with the second sub-supporting part;

the display screen is connected with the supporting part through a glue layer, and the supporting part is provided with a crease on one side close to the driving assembly.

2. The foldable display panel of claim 1, wherein the driving assembly comprises a connection portion, a worm gear, a first worm, and a second worm; connecting portion axial extension line with the first direction is parallel, connecting portion set up the supporting part is kept away from one side of display screen, and respectively with first sub-supporting part with second sub-supporting part swing joint, connecting portion are close to one side of display screen sets up the worm wheel, the rotation axis axial extension line of worm wheel is perpendicular the surface of display screen, the both sides of worm wheel set up relatively first worm with the second worm, the worm wheel through with first worm meshing is connected first sub-supporting part, the worm wheel through with second worm meshing is connected second sub-supporting part.

3. The foldable display panel according to any one of claims 1 to 2, further comprising a circuit module, wherein a receiving portion is disposed in the supporting portion, the circuit module is located in the receiving portion, the circuit module is connected to the driving assembly, and the circuit module is configured to control the driving assembly to move in opposite directions or in opposite directions, so as to drive the display screen to be folded or unfolded.

4. The foldable display panel of any one of claims 1 to 2, further comprising a detection module and a control module, wherein the control module is connected to the detection module and the display screen, and when the detection module detects that the first sub-support and the second sub-support are folded in a direction away from the display screen, the control module controls the display screen to display in a split-screen manner.

5. The foldable display panel of any one of claims 1 to 2, further comprising a detection module and a control module, wherein the control module connects the detection module and the display screen, and when the detection module detects that the first sub-support and the second sub-support are folded to 90 ° in the direction approaching the display screen, the control module controls the display screen to close the display.

6. The foldable display panel according to any one of claims 1 to 2, wherein the driving assembly is provided in plurality, and the plurality of driving assemblies are provided along the first direction.

7. The folding display panel of any of claims 1 to 2, wherein the rotation angle of the first and second sub-supports is 180 ° or less.

8. A foldable display device comprising a foldable display panel according to any one of claims 1 to 7.