CN114141146A - Supporting assembly and display device - Google Patents
Supporting assembly and display device Download PDFInfo
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- CN114141146A CN114141146A CN202111462705.1A CN202111462705A CN114141146A CN 114141146 A CN114141146 A CN 114141146A CN 202111462705 A CN202111462705 A CN 202111462705A CN 114141146 A CN114141146 A CN 114141146A
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- 238000004804 winding Methods 0.000 claims abstract description 83
- 238000005096 rolling process Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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Abstract
The embodiment of the application provides a supporting component and display device, supporting component is used for supporting flexible display panel, and supporting component includes: a winding shaft, an axis of the winding shaft extending in a first direction; the supporting plate is connected with the winding shaft and provided with a first surface and a second surface which are oppositely arranged in the thickness direction of the supporting plate, first sawteeth protruding out of the first surface are arranged at two ends of the first surface in the first direction, and second sawteeth protruding out of the second surface are arranged at two ends of the second surface in the first direction; the supporting component has a first state and a second state, in the first state, one end of the supporting plate in the second direction is connected with the winding shaft and is unfolded, a second limit space is formed between two adjacent second sawteeth in the second direction, in the second state, the supporting plate is wound on the winding shaft, and at least part of the first sawteeth are located in the second limit space. The flexible display panel can be improved, dislocation can be easily caused, and the problem of looseness and curling caused by inaccurate positioning can be solved.
Description
Technical Field
The application relates to the technical field of display equipment, in particular to a supporting assembly and a display device.
Background
As market demand for flexible displays increases, research and development on various flexible display devices, such as rollable display devices that have been in use in development, expansion using a flexible display panel to increase visibility, and small volume after rolling to increase portability, are currently gaining importance. However, the flexible display screen body has a large challenge to the existing flexible display screen body due to the curling, and the flexible display screen is difficult to accurately position on the curling shaft.
Disclosure of Invention
The embodiment of the application provides a supporting component and a display device, and aims to realize accurate positioning of a flexible display screen in a curling process.
Embodiments of a first aspect of the present application provide a support assembly for supporting a flexible display panel, the support assembly comprising: a winding shaft, an axis of the winding shaft extending in a first direction; the supporting plate is connected with the winding shaft and provided with a first surface and a second surface which are oppositely arranged in the thickness direction of the supporting plate, first sawteeth protruding out of the first surface are arranged at two ends of the first surface in the first direction, and second sawteeth protruding out of the second surface are arranged at two ends of the second surface in the first direction; the supporting component has a first state and a second state, in the first state, one end of the supporting plate in the second direction is connected with the winding shaft and is unfolded, a second limit space is formed between two adjacent second sawteeth in the second direction, in the second state, at least part of the supporting plate is wound on the winding shaft, and at least part of the first sawteeth are located in the second limit space.
According to the embodiment of the first aspect of the present application, the two ends of the curling shaft in the first direction are convexly provided with the third saw teeth, the third saw teeth are distributed at intervals in the circumferential direction of the curling shaft, a third limit space is formed between every two adjacent third saw teeth, and in the second state, at least part of the first saw teeth are located in the third limit space.
According to any one of the foregoing embodiments of the first aspect of the present application, one of the two magnetic attraction components with different polarities is disposed in the first sawtooth, the other is disposed in the second limit space and/or the third limit space, and in the second state, at least a portion of the first sawtooth is attracted to the second limit space and/or the third limit space through the two magnetic attraction components with different polarities.
According to any one of the foregoing embodiments of the first aspect of the present application, the magnetic attraction members disposed on two adjacent first sawteeth have different polarities, and the magnetic attraction members disposed on the first sawteeth and the second sawteeth and/or the third sawteeth that are matched with each other have different polarities.
According to any one of the previous embodiments of the first aspect of the present application, a first spacing space is formed between two adjacent first saw teeth, the first saw teeth have a first tooth surface facing the first spacing space, the magnetic attraction component is disposed on the first tooth surface, and in the second state, at least a part of the first saw teeth are in contact connection with the second saw teeth and/or the third saw teeth through the first tooth surface.
According to any one of the foregoing embodiments of the first aspect of the present application, the first tooth surface includes a first sub-surface and a second sub-surface facing two adjacent first limiting spaces, the plurality of first sub-surfaces are located on the same side of the first saw tooth, and the magnetic attraction component is disposed on the first sub-surfaces.
According to any of the preceding embodiments of the first aspect of the present application, the second saw tooth has a second tooth surface facing the second spacing space, the magnetic attraction member is disposed on the second tooth surface, and in the second state, at least a portion of the second saw tooth is in contact connection with the first tooth surface with the magnetic attraction member via the second tooth surface.
According to any one of the previous embodiments of the first aspect of the present application, the third saw tooth has a third tooth surface facing the third spacing space, the magnetic attraction member is disposed on the third tooth surface, and in the second state, the third saw tooth is in contact connection with the first tooth surface with the magnetic attraction member through the third tooth surface.
According to any one of the preceding embodiments of the first aspect of the present application, the support plate is a flexible support layer.
According to any one of the preceding embodiments of the first aspect of the present application, the support plate comprises a rigid support layer.
According to any of the preceding embodiments of the first aspect of the present application, the two flexible support layers are provided on both sides of the rigid support layer, the first surface and the first serrations being provided on one of the two flexible support layers, and the second surface and the second serrations being provided on the other of the two flexible support layers.
According to any one of the embodiments of the first aspect of the present application, the first saw tooth is integrally formed with a flexible supporting layer on which the first saw tooth is located, or a rigid saw tooth is disposed on a side of the rigid supporting layer facing the first surface, and the flexible supporting layer covers the rigid supporting layer and the rigid saw tooth to form the first saw tooth.
According to any one of the embodiments of the first aspect of the present application, the second saw tooth is integrally formed with a flexible supporting layer on which the second saw tooth is located, or the rigid supporting layer is provided with a rigid saw tooth on a side facing the second surface, and the flexible supporting layer covers the rigid supporting layer and the rigid saw tooth to form the second saw tooth.
According to any of the preceding embodiments of the first aspect of the present application, in the first state, the dimension between two adjacent first serrations gradually increases in a direction approaching the winding shaft.
According to any of the preceding embodiments of the first aspect of the present application, the pitch of adjacent third serrations in at least a part of the surface area of the crimp shaft is gradually decreased in the circumferential direction.
According to any of the preceding embodiments of the first aspect of the present application, in the first state, the dimension between two adjacent second serrations gradually decreases in a direction approaching the winding shaft.
Embodiments of the second aspect of the present application also provide a display device, including: the support assembly of any of the first aspect embodiments above; the flexible display panel is arranged on the first surface and is positioned between the two groups of first sawteeth of the first surface opposite to each other in the first direction, so that the flexible display panel can be wound on the winding shaft along with the supporting plate.
According to an embodiment of the second aspect of the present application, the flexible display panel has a display surface facing away from the first surface, and a distance between the display surface and the first surface in a thickness direction of the flexible display panel is smaller than or equal to a maximum distance between the first saw tooth and the first surface.
According to any of the preceding embodiments of the first aspect of the present application, in the thickness direction of the flexible display panel, the distance between the display surface and the first surface is less than or equal to the minimum distance between the first serrations and the first surface.
In the supporting component that this application embodiment provided, the supporting component includes the book axle and sets up in the backup pad of book axle, and the backup pad is used for supporting flexible display panel. The first surface of the supporting plate is provided with first sawteeth, and the second surface of the supporting plate is provided with second sawteeth. When the supporting component is changed to the second state by the first state, set up in the backup pad when flexible display panel promptly, the backup pad drives flexible display panel and convolutes in the book epaxial time, the partial first surface after the coiling can cover the second surface, the first surface is located the second surface and deviates from the one side of rolling up the bent axle, partial first sawtooth can be spacing in the spacing space of second this moment, can realize the accurate positioning of flexible display panel and curling axle, and provide spacing also can prevent to curl through the spacing space of second to first sawtooth. Therefore, the flexible display panel can be prevented from being easily misplaced when the flexible display panel is wound by the winding shaft, and the problem of loose curling caused by inaccurate positioning can be solved.
Drawings
Other features, objects, and advantages of the present application will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like or similar reference characters identify the same or similar features.
Fig. 1 is a schematic structural diagram of a support assembly provided in an embodiment of the first aspect of the present application;
fig. 2 is a schematic structural diagram of a support assembly provided in an embodiment of the first aspect of the present application in a first state from another perspective;
FIG. 3 is a schematic structural diagram of a support assembly provided in an embodiment of the first aspect of the present application in a second state;
FIG. 4 is a schematic structural diagram of a support assembly provided in an embodiment of the first aspect of the present application in a second state from another perspective;
FIG. 5 is an enlarged, partial schematic view of a support assembly in a first state according to an embodiment of the present disclosure;
FIG. 6 is a side view of a support assembly provided by an embodiment of the present application in a first state;
FIG. 7 is an enlarged, partial schematic view of a support assembly in a second state according to an embodiment of the present disclosure;
fig. 8 is a partially enlarged schematic view of fig. 7.
Description of reference numerals:
10. a support assembly; 20. a flexible display panel; 21. a display surface;
100. a winding shaft; 110. a third saw tooth; 111. a third tooth surface; 111a, a fifth sub-surface; 111b, a sixth sub-surface; 120. a third spacing space;
200. a support plate; 200a, a first surface; 200b, a second surface; 210. a first saw tooth; 211. a first tooth surface; 211a, a first sub-surface; 211b, a second sub-surface; 220. a second saw tooth; 221. a second tooth surface; 221a and a third sub-surface; 221b and a fourth sub-surface; 230. a first spacing space; 240. a second spacing space;
300. a magnetic attraction component; 310. a first magnetic attraction part; 320. a second magnetic attraction part;
y, a first direction; x, a second direction; z, thickness direction.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present application can be understood as appropriate by one of ordinary skill in the art.
In the rollable flexible display device provided in the related art, when the flexible display panel is rolled on the rolling shaft, problems of loose rolling, wrinkles of the flexible display surface pattern on the rolling shaft, and the like occur due to inaccurate positioning, which seriously affects the service life of the display device.
For a better understanding of the present application, the support assembly and the display device of the embodiment of the present application will be described in detail below with reference to fig. 1 to 8.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a support assembly 10 according to an embodiment of the first aspect of the present application. In order to illustrate the relative position structure of the support member 10 and the flexible display surface 21, a flexible display panel 20 is also illustrated in fig. 1. Fig. 2 is a schematic structural diagram of the support assembly 10 provided in the embodiment of the first aspect of the present application in a first state from another perspective, and fig. 3 is a schematic structural diagram of the support assembly 10 provided in the embodiment of the first aspect of the present application in a second state.
Fig. 4 is a schematic structural diagram of the support assembly 10 provided in the embodiment of the first aspect of the present application in a second state from another perspective.
As shown in fig. 1 to 4, a support assembly 10 provided in an embodiment of the first aspect of the present application is used for supporting a flexible display panel 20, and the support assembly 10 includes: a winding shaft 100 and a support plate 200, an axis of the winding shaft 100 extending in a first direction Y; the support plate 200 is connected to the winding shaft 100, the support plate 200 having a first surface 200a and a second surface 200b oppositely disposed in a thickness direction thereof, the first surface 200a having first serrations 210 protruding from the first surface 200a at both ends in the first direction Y, the second surface 200b having second serrations 220 protruding from the second surface 200b at both ends in the first direction Y; the support assembly 10 has a first state in which one end of the support plate 200 in the second direction X is connected to the winding shaft 100 and is unfolded, a second limiting space 240 is formed between two second saw teeth 220 adjacent to each other in the second direction X, and a second state in which at least a portion of the support plate 200 is wound around the winding shaft 100 and at least a portion of the first saw teeth 210 is located in the second limiting space 240.
As shown in fig. 1, the flexible display panel 20 may be directly disposed on the first surface 200a of the support plate 200. Fig. 3 and 4 are schematic structural views of the support assembly 10 in a second state in one example. In other embodiments, at least a portion of the support plate 200 may also be completely wound around the winding shaft 100 when the support assembly 10 is in the second state. Alternatively, when the support plate 200 is in the state shown in fig. 1, the thickness direction is the Z direction in fig. 1, and when the support plate 200 is in other states, the thickness direction may be changed. Alternatively, when the support plate 200 is not wound around the winding shaft 100, the support plate 200 may be in a corrugated shape, a planar shape, or the like. For better describing the structure of the support plate 200, the first state means that the support plate 200 is not wound around the winding shaft 100 and is unwound.
In the support assembly 10 provided in the embodiment of the present application, the support assembly 10 includes a winding shaft 100 and a support plate 200 disposed on the winding shaft 100, and the support plate 200 is used to support the flexible display panel 20. The first surface 200a of the support plate 200 is provided with first saw teeth 210, and the second surface 200b of the support plate 200 is provided with second saw teeth 220. When the supporting assembly 10 is changed from the first state to the second state, that is, when the flexible display panel 20 is disposed on the supporting plate 200, and the supporting plate 200 drives the flexible display panel 20 to be wound on the winding shaft 100, the wound part of the first surface 200a covers the second surface 200b, and the part of the first surface 200a is located on the side of the second surface 200b departing from the winding shaft 100, at this time, the first saw teeth 210 can be limited in the second limiting space 240, so that the flexible display panel 20 and the winding shaft 100 can be accurately positioned, and the second limiting space 240 provides limiting to the first saw teeth 210, and the winding can be prevented from being loosened. Therefore, the problem that the flexible display panel 20 is prone to dislocation and loose in curling caused by inaccurate positioning when the flexible display panel 20 is wound by the winding shaft 100 can be solved.
The winding shaft 100 may be disposed in various ways, for example, the winding shaft 100 is cylindrical, so that the flexible display panel 20 can be wound around the winding shaft 100 under the driving of the supporting plate 200.
In some alternative embodiments, with continued reference to fig. 1 to 4, the winding shaft 100 is convexly provided with third saw teeth 110 at two ends in the first direction Y, the plurality of third saw teeth 110 are spaced apart in the circumferential direction of the winding shaft 100, a third limiting space 120 is formed between two adjacent third saw teeth 110, and in the second state, a part of the first saw teeth 210 is located in the third limiting space 120.
In these alternative embodiments, at the initial curling stage of winding the support plate 200 on the curling shaft 100, a portion of the first saw teeth 210 on the first surface 200a can be limited in the third limiting space 120, and the third limiting space 120 can provide a limit for the first saw teeth 210, thereby further improving the accurate positioning of the flexible display panel 20 and the curling shaft 100.
In other embodiments, the third saw teeth 110 may not be disposed on the winding shaft 100, and the first saw teeth 210 may not be disposed on the first surface 200a near the winding shaft 100, that is, the first layer of the support plate 200 wound on the winding shaft 100 may not be limited by the cooperation of the first saw teeth 210 and the third limiting space 120.
Referring to fig. 5 to 8, fig. 5 is a partially enlarged schematic structural view of a supporting assembly 10 in a first state according to an embodiment of the present application. Fig. 6 is a side view of a support assembly 10 provided in accordance with an embodiment of the present application in a first state. Fig. 7 is a partially enlarged structural schematic view of a support assembly 10 in a second state according to an embodiment of the present application. Fig. 8 is a partially enlarged schematic view of fig. 7.
In some alternative embodiments, as shown in fig. 5 to 8, one of the two magnetic attraction members 300 with different polarities is disposed in the first tooth 210, and the other is disposed in the second position-limiting space 240 and/or the third position-limiting space 120, and in the second state, the first tooth 210 is attracted to the second position-limiting space 240 and/or the third position-limiting space 120 through the two magnetic attraction members 300 with opposite polarities. For example, when the magnetic component 300 includes the first magnetic portion 310 and the second magnetic portion 320 with opposite polarities, one of the first magnetic portion 310 and the second magnetic portion 320 is disposed in the first tooth 210, the other is disposed in the second limiting space 240 and/or the third limiting space 120, and the first tooth 210 is attracted to the second limiting space 240 and/or the third limiting space 120 through the first magnetic portion 310 and the second magnetic portion 320 with opposite polarities.
Optionally, when the first magnetic attraction portion 310 is disposed on the first saw tooth 210, the second magnetic attraction portion 320 may be disposed in the second limiting space 240 and/or the third limiting space 120, so that the first saw tooth 210 is attracted to the second limiting space 240 and/or the third limiting space 120 through the first magnetic attraction portion 310 and the second magnetic attraction portion 320. Or, when the second magnetic attraction part 320 is disposed on the first saw tooth 210, the first magnetic attraction part 310 may be disposed in the second limiting space 240 and/or the third limiting space 120, so that the first saw tooth 210 is attracted to the second limiting space 240 and/or the third limiting space 120 through the first magnetic attraction part 310 and the second magnetic attraction part 320.
In these optional embodiments, by providing the magnetic attraction members 300 with different polarities, the positions of the first saw teeth 210 in the second limiting space 240 and/or the third limiting space 120 are more stable, the stability of the position of the support plate 200 in the second state can be further ensured, and the support plate 200 is prevented from being loosened.
In some alternative embodiments, with continued reference to fig. 7 and 8, the magnetic attraction members 300 disposed on two adjacent first saw teeth 210 have different polarities, and the magnetic attraction members 300 disposed on the first saw teeth 210 and the second saw teeth 220 and/or the third saw teeth 110 that are matched with each other have different polarities.
The first saw teeth 210 and the second saw teeth 220, which are engaged with each other, mean that the first saw teeth 210 and any one of the second saw teeth 220 at both sides of the second limiting space 240 for receiving the first saw teeth 210 are in contact with each other in the second state on the premise that the winding position of the support plate 200 is accurate. Similarly, the first saw tooth 210 and the third saw tooth 110, which are engaged with each other, may be configured such that, in the second state, the first saw tooth 210 and any one of the third saw teeth 110 on both sides of the third limiting space 120 for accommodating the first saw tooth 210 are in contact with each other on the premise that the winding positioning of the support plate 200 is accurate.
In these alternative embodiments, the magnetic attraction members 300 disposed on the first saw tooth 210 and the second saw tooth 220 and/or the third saw tooth 110 are different in polarity, so that the first saw tooth 210 and the second saw tooth 220 and/or the third saw tooth 110 can attract each other.
The polarity of the magnetic attraction parts 300 arranged on the two adjacent first sawteeth 210 is different, and when the supporting plate 200 is wound and dislocated, so that the first sawteeth 210 and the second sawteeth 220 which are provided with the magnetic attraction parts 300 with the same polarity are matched, under the action of repelling of the same polarity, the first sawteeth 210 and the second sawteeth 220 are difficult to contact with each other, and the problem of winding dislocation of the supporting plate 200 can be improved.
For example, with reference to fig. 7 and 8, one of the two adjacent first saw teeth 210 is provided with a first magnetic attraction portion 310, the other is provided with a second magnetic attraction portion 320, the second saw teeth 220 and/or the third saw teeth 110 cooperating with the first magnetic attraction portion 310 are provided with the second magnetic attraction portion 320, and the second saw teeth 220 and/or the third saw teeth 110 cooperating with the second magnetic attraction portion 320 are provided with the first magnetic attraction portion 310.
In these alternative embodiments, a first magnetic attraction portion 310 is disposed on one of two adjacent first saw teeth 210, and a second magnetic attraction portion 320 is disposed on the second saw tooth 220 or the third saw tooth 110 with the first magnetic attraction portion 310, so that the second saw tooth 220 or the third saw tooth 110 can be attracted to each other through the first magnetic attraction portion 310 and the second magnetic attraction portion 320. The other of the two adjacent first saw teeth 210 is provided with a second magnetic attraction portion 320, and the second saw teeth 220 or the third saw teeth 110 with the second magnetic attraction portion 320 are provided with a first magnetic attraction portion 310, so that the second saw teeth 220 or the third saw teeth 110 can be attracted to each other through the second magnetic attraction portion 320 and the first magnetic attraction portion 310.
When the supporting plate 200 is wound and dislocated, such that the second saw tooth 220 or the third saw tooth 110 with the second magnetic attraction part 320 is aligned with the first saw tooth 210 with the second magnetic attraction part 320, the second saw tooth 220 or the third saw tooth 110 with the second magnetic attraction part 320 is mutually repelled with the first saw tooth 210 with the second magnetic attraction part 320 under the action of like polarities repelled from each other, thereby further improving the winding dislocation problem of the supporting plate 200.
In the embodiment of the present application, the second saw tooth 220 and the third saw tooth 110 are both provided with the magnetic attraction component 300 for illustration, in other optional embodiments, part of the second saw tooth 220 or the third saw tooth 110 may not be provided with the magnetic attraction component 300, as long as part of the first saw tooth 210 can be attracted to the second limiting space 240 and/or the third limiting space 120 through the magnetic attraction components 300 with different polarities.
In some alternative embodiments, the magnetic attraction parts 300 on any two adjacent first saw teeth 210 have different polarities, that is, one of any two adjacent first saw teeth 210 is provided with a first magnetic attraction part 310, and the other is provided with a second magnetic attraction part 320; the magnetic attraction components 300 on any two adjacent second sawteeth 220 have different polarities, that is, one of any two adjacent second sawteeth 220 is provided with a first magnetic attraction portion 310, and the other is provided with a second magnetic attraction portion 320; the magnetic attraction parts 300 on any two adjacent third saw teeth 110 have different polarities, that is, one of any two adjacent third saw teeth 110 is provided with a first magnetic attraction part 310, and the other is provided with a second magnetic attraction part 320. When the supporting plate 200 is not dislocated during winding, the first saw teeth 210 with the first magnetic attraction parts 310 and the second saw teeth 220 with the second magnetic attraction parts 320 or the third saw teeth 110 with the second magnetic attraction parts 320 are attracted to each other, and the first saw teeth 210 with the second magnetic attraction parts 320 and the second saw teeth 220 with the first magnetic attraction parts 310 or the third saw teeth 110 with the second magnetic attraction parts 320 are contacted to each other and attracted to each other through the first magnetic attraction parts 310 and the second magnetic attraction parts 320.
With reference to fig. 6 to 8, in some alternative embodiments, a first spacing space 230 is formed between two adjacent first saw teeth 210, each first saw tooth 210 has a first tooth surface 211 facing the first spacing space 230, the magnetic attraction member 300 is disposed on the first tooth surface 211, and in the second state, at least a portion of the first saw teeth 210 is in contact with the second saw teeth 220 and/or the third saw teeth 110 through the first tooth surfaces 211. That is, the first magnetic attracting portion 310 and the second magnetic attracting portion 320 are disposed on the first tooth surface 211 of different first saw teeth 210.
In these alternative embodiments, the first magnetic attracting portion 310 and the second magnetic attracting portion 320 are disposed on the first tooth surface 211 of different first saw teeth 210, and the first saw teeth 210 are connected with the second saw teeth 220 and/or the third saw teeth 110 through the first tooth surface 211 in a surface-to-surface contact manner, so that the stability of the relative positions of the first saw teeth 210 and the second saw teeth 220 and/or the third saw teeth 110 can be improved.
Optionally, with continuing to refer to fig. 6 and 8, the first tooth surface 211 includes a first sub-surface 211a and a second sub-surface 211b facing two adjacent first limiting spaces 230, the first sub-surface 211a and the second sub-surface 211b are respectively disposed on two sides of the same first limiting space 230, that is, the first sub-surfaces 211a are all located on the same side of the first saw teeth 210, and the magnetic attraction component 300 is disposed on the first sub-surfaces 211 a. That is, the first magnetic attraction part 310 and the second magnetic attraction part 320 are disposed on the first sub-surface 211 a.
In these alternative embodiments, the first magnetic attracting portion 310 and the second magnetic attracting portion 320 are disposed on the first sub-surfaces 211a of the different first saw teeth 210, so that the distance between the magnetic attracting components 300 of two adjacent first spacing spaces 230 is relatively large, and the magnetic attracting components 300 in two adjacent first spacing spaces 230 are prevented from affecting each other.
In some alternative embodiments, please continue to refer to fig. 6 and 8, the second saw tooth 220 has a second tooth surface 221 facing the second limiting space 240, and the magnetic attraction component 300 is disposed on the second tooth surface 221, that is, the first magnetic attraction component 310 and the second magnetic attraction component 320 are both disposed on the second tooth surface 221 of different second saw teeth 220; in the second state, at least a portion of the second teeth 220 are in contact with the first teeth 211 with the magnetically attracting member 300 via the second teeth 221.
In these alternative embodiments, the first saw tooth 210 and the second saw tooth 220 are in surface contact connection through the first tooth surface 211 and the second tooth surface 221, which can improve the contact area of the first saw tooth 210 and the second saw tooth 220 and improve the stability of the relative positions of the first saw tooth 210 and the second saw tooth 220. The second tooth surface 221 is provided with the magnetic part 300, and the second tooth surface 221 with the magnetic part and the first tooth surface 211 with the magnetic part 300 are in contact connection with each other, so that the stability of the relative positions of the first saw tooth 210 and the second saw tooth 220 can be further improved.
Optionally, with continuing reference to fig. 6 and 8, the second tooth surface 221 includes a third sub-surface 221a and a fourth sub-surface 221b facing two adjacent second limiting spaces 240, the third sub-surface 221a and the fourth sub-surface 221b are respectively disposed on two sides of the same second limiting space 240, and the magnetic attraction component 300 is disposed on the third sub-surface 221a, that is, the first magnetic attraction component 310 and the second magnetic attraction component 320 are disposed on the third sub-surfaces 221a of different second sawteeth. In the second state, the third sub-surface 221a and a part of the first sub-surface 211a are in contact connection.
In some alternative embodiments, please continue to refer to fig. 6 and 8, the third saw tooth 110 has a third tooth surface 111 facing the third spacing space 120, and the magnetic attraction component 300 is disposed on the third tooth surface 111, that is, the first magnetic attraction component 310 and the second magnetic attraction component 320 are both disposed on the third tooth surface 111. In the second state, the third teeth 110 are connected to the first teeth 211 with the magnetically attracting member 300 via the third teeth 111. In these alternative embodiments, the partial first sawtooth 210 and the partial third sawtooth 110 are connected in a surface-to-surface contact manner through the first tooth surface 211 and the third tooth surface 111, so that the contact area between the first sawtooth 210 and the third sawtooth 110 can be increased, and the stability of the relative position between the first sawtooth 210 and the third sawtooth 110 can be improved. The third tooth surface 111 is provided with the magnetic attraction part 300, and the third tooth surface 111 with the magnetic part is in contact connection with the first tooth surface 211 with the magnetic attraction part 300, so that the stability of the relative positions of the first sawtooth 210 and the second sawtooth 220 can be further improved.
Optionally, with continuing reference to fig. 6 and 8, the third tooth surface 111 includes a fifth sub-surface 111a and a sixth sub-surface 111b facing two adjacent third limiting spaces 120, the fifth sub-surface 111a and the sixth sub-surface 111b are respectively disposed on two sides of the same third limiting space 120, and the magnetic attraction component 300 is disposed on the fifth sub-surface 111a, that is, the first magnetic attraction part 310 and the second magnetic attraction part 320 are disposed on different fifth tooth surfaces of the third sawtooth. In the second state, the fifth sub-surface 111a and a part of the first sub-surface 211a are in contact connection.
The support plate 200 can be disposed in a variety of ways, and in some alternative embodiments, the support plate 200 comprises a flexible support layer. The material of the flexible support layer may include a flexible material such as foam, silicone, etc., so that the support plate 200 can provide better support to the flexible display panel 20 without scratching the flexible display panel 20.
Optionally, the first surface 200a is disposed on a flexible supporting layer, and the first surface 200a is a supporting surface of the supporting plate 200 for supporting the flexible display panel 20.
Optionally, the supporting board 200 may further include a rigid supporting layer stacked on the flexible supporting layer, and the rigid supporting layer may improve the structural strength of the supporting board 200, so that the supporting board 200 provides better support for the flexible display panel 20. The material of the rigid support layer may comprise a metal material such as a steel sheet.
Optionally, two flexible support layers are disposed on two sides of the rigid support layer, the first surface 200a and the first saw tooth 210 are disposed on one of the two flexible support layers, and the second surface 200b and the second saw tooth 220 are disposed on the other of the two flexible support layers.
Optionally, the first saw teeth 210 and the flexible supporting layer where the first saw teeth are located are integrally formed, so as to ensure stability of the relative position between the first saw teeth 210 and the supporting plate 200 and avoid slipping during the winding process of the supporting plate 200. Alternatively, the rigid support layer is provided with rigid saw teeth on a side facing the first surface 200a, and the flexible support layer covers the rigid support layer and the rigid saw teeth to form the first saw teeth 210, so as to improve the deformation of the first saw teeth 210. That is, in the embodiment of the present application, the first saw tooth 210 may be integrally formed of a flexible material, or the first saw tooth 210 includes a rigid saw tooth and a flexible supporting layer wrapping the rigid saw tooth.
Optionally, the second saw teeth 220 and the flexible supporting layer where the second saw teeth are located are integrally formed, so as to ensure the stability of the relative position between the second saw teeth 220 and the supporting plate 200 and avoid the sliding of the supporting plate 200 during the winding process. Alternatively, the rigid support layer is provided with rigid saw teeth on a side facing the second surface 200b, and the flexible support layer covers the rigid support layer and the rigid saw teeth to form the second saw teeth 220, so as to improve the deformation of the second saw teeth 220. That is, in the embodiment of the present application, the second saw teeth 220 may be integrally formed of a flexible material, or the second saw teeth 220 may include a rigid saw tooth and a flexible supporting layer wrapping the rigid saw tooth.
In some alternative embodiments, in the first state, the size between adjacent two of the first serrations 210 gradually increases in a direction approaching the winding shaft 100. When the support plate 200 is wound around the winding shaft 100, since the support plate 200 includes a flexible support layer, the support plate 200 is easily deformed when wound, resulting in that the first surface 200a is more easily deformed by being pressed toward the winding shaft. By increasing the distance between two first serrations 210 on the first surface 200a on the side closer to the winding shaft 100 in the first state, the greater distance on the side closer to the winding shaft of the first surface 200a when the support plate 200 is shifted from the first state to the second state can be decreased by the occurrence of the compressive deformation during the crimping, so that the distance between two adjacent first serrations 210 near the winding shaft is decreased, so that the size of the first stopper space 230 is more adapted to the shape of the second serrations 220 or the third serrations 110 in the second state. Therefore, the present invention can compensate for the influence of the support plate 200 on the distance between the adjacent two first saw teeth 210 when the support plate 200 is deformed by curling in the second state by increasing the distance between the adjacent two first saw teeth 210 near the winding shaft 100 in the first state.
In some alternative embodiments, the pitch of the adjacent third serrations 110 in at least a portion of the surface area of the crankshaft 100 is gradually decreased in the circumferential direction. That is, when the support plate 200 is changed from the first state to the second state, the interval between the adjacent two third serrations 110 on the side close to the support plate 200 in the rotational direction of the crimp shaft 100 is gradually decreased. The rotation direction of the winding shaft 100 refers to the rotation direction of the winding shaft 100 when the support plate 200 is transited from the first state to the second state. A partial area of the winding shaft includes a first end connected to one end of the support plate in a circumferential direction of the winding shaft and a second end distant from the first end, the first end being engaged with the first teeth 210 first when the support plate 200 is transformed from the first state to the second state. The pitch of the adjacent third teeth 110 in at least a partial surface area of the winding shaft 100 is gradually decreased in the circumferential direction, i.e., the pitch between the adjacent third teeth 110 is gradually decreased in the direction from the second end toward the first end.
Specifically, the pitch between the first serrations on the first surface is not changed in the first state, and the fitting of the first serrations and the third serrations in the second state is made only by adjusting the pitch of the third serrations that mesh with the first serrations. In the second state, the first surface 200a is more easily deformed by being pressed closer to the winding shaft during the winding of the support plate 200, so that the interval between the two first serrations 210 closer to the winding shaft 100 is decreased (i.e., pressed smaller from the initial equal interval). When the support plate 200 is transformed from the first state to the second state, the tooth space between the adjacent two third teeth is gradually decreased in the rotation direction of the curling shaft 100 (i.e., in the direction of the second end toward the first end), i.e., the tooth space between the adjacent two third teeth is minimized closer to the first end. The distance between two adjacent third saw teeth 110 is matched with the gap between the plurality of first saw teeth 210 in the second state, so that a part of the first saw teeth 210 and the third saw teeth 110 can be accurately matched, and the influence on the distance between two adjacent first saw teeth 210 when the support plate 200 is curled and deformed is compensated.
In other alternative embodiments, in the first state, the dimension between two adjacent second serrations 220 gradually decreases in a direction approaching the winding shaft 100. When the support plate 200 is wound around the winding shaft 100, since the support plate 200 includes a flexible support layer, the support plate 200 is easily deformed by curling, which causes the second surface 200b to be deformed by pulling on the side closer to the winding shaft, so that the distance between the two second serrations 220 on the second surface 200b on the side closer to the winding shaft 100 in the second state is increased. By gradually reducing the dimension between the adjacent two second saw teeth 220 in the first state in the direction approaching the winding shaft 100, the distance between the adjacent two second saw teeth 220 near the winding shaft 100 due to the stretching thereof in the second state is reduced, and the influence of the support plate 200 on the distance between the adjacent two second saw teeth 220 during the curling deformation in the second state is compensated.
An embodiment of the second aspect of the present application provides a display device, which includes the support assembly 10 and the flexible display panel 20 of any of the first aspect embodiments, wherein the flexible display panel 20 is disposed on the first surface 200a of the support plate 200 and located between two sets of first saw teeth 210 of the first surface 200a facing each other in the first direction Y, so that the flexible display panel 20 can be wound around the winding shaft 100 following the support plate 200.
In the display device provided in the embodiment of the application, when the supporting plate 200 drives the flexible display panel 20 to be wound on the winding shaft 100, the wound first surface 200a covers the second surface 200b, the first surface 200a is located on one side of the second surface 200b departing from the winding shaft 100, at this time, the first sawteeth 210 can be limited in the second limiting space 240, accurate positioning of the flexible display panel 20 and the winding shaft 100 can be realized, and limitation can be provided for the first sawteeth 210 through the second limiting space 240, and the curling can be prevented from being loosened. Therefore, the problem that the flexible display panel 20 is prone to dislocation and loose in curling caused by inaccurate positioning when the flexible display panel 20 is wound by the winding shaft 100 can be solved.
In some alternative embodiments, referring to fig. 1, the flexible display panel 20 has a display surface 21 facing away from the first surface 200a, and a distance between the display surface 21 and the first surface 200a along a thickness direction of the flexible display panel 20 is less than or equal to a maximum height of the first saw-tooth 210 protruding from the first surface 200 a. I.e. the distance between the display surface 21 and the first surface 200a is smaller than or equal to the maximum distance between the first serrations 210 and the first surface 200 a. In the second state, when the supporting plate 200 drives the flexible display panel 20 to be wound on the winding shaft 100, the outer supporting plate 200 can be prevented from extruding the inner flexible display panel 20, and the service life of the flexible display panel 20 can be prolonged.
In some alternative embodiments, the distance between the display surface 21 and the first surface 200a in the thickness direction of the flexible display panel 20 is less than or equal to the minimum distance between the first saw tooth 210 and the first surface 200a, that is, when the first saw tooth 210 has a root, the distance between the flexible display panel 20 and the first surface 200a is less than or equal to the height of the root of the first saw tooth 210 protruding from the first surface 200 a.
In the second state, when the second saw tooth 220 or the third saw tooth 110 is inserted into the first spacing space 230 between two adjacent first saw teeth 210, the tooth tip of the second saw tooth 220 or the third saw tooth 110 may mistakenly touch the flexible display panel 20, and when the distance between the flexible display panel 20 and the first surface 200a is less than or equal to the height of the tooth root protruding out of the first surface 200a, it can be ensured that the second saw tooth 220 or the third saw tooth 110 does not touch the flexible display panel 20 in the whole process of winding the support plate 200 on the winding shaft 100, thereby preventing the display panel from being damaged due to friction between the support plate and the display panel in the winding process.
While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (10)
1. A support assembly for supporting a flexible display panel, the support assembly comprising:
a winding shaft having an axis extending in a first direction;
the support plate is connected to the winding shaft and provided with a first surface and a second surface which are oppositely arranged in the thickness direction of the support plate, first sawteeth protruding out of the first surface are arranged at two ends of the first surface in the first direction, and second sawteeth protruding out of the second surface are arranged at two ends of the second surface in the first direction;
the supporting component is provided with a first state and a second state, in the first state, one end of the supporting plate in the second direction is connected with the rolling shaft and is unfolded, a second limiting space is formed between two adjacent second sawteeth in the second direction, in the second state, at least part of the supporting plate is wound on the rolling shaft, and at least part of the first sawteeth are located in the second limiting space.
2. The support assembly according to claim 1, wherein the two ends of the winding shaft in the first direction are convexly provided with third saw teeth, a plurality of the third saw teeth are distributed at intervals in the circumferential direction of the winding shaft, a third limit space is formed between two adjacent third saw teeth, and in the second state, at least part of the first saw teeth are positioned in the third limit space;
preferably, one of the two magnetic attraction parts with different polarities is arranged in the first sawtooth, the other is arranged in the second limit space and/or the third limit space, and in the second state, at least part of the first sawtooth is attracted in the second limit space and/or the third limit space through the two magnetic attraction parts with different polarities.
3. The supporting assembly as claimed in claim 2, wherein the magnetic attracting parts disposed on two adjacent first saw teeth have different polarities, and the magnetic attracting parts disposed on the first saw teeth and the second saw teeth and/or the third saw teeth are different polarities.
4. The supporting assembly according to claim 3, wherein a first limiting space is formed between two adjacent first saw teeth, the first saw teeth have a first tooth surface facing the first limiting space, the magnetic attraction member is disposed on the first tooth surface, and in the second state, at least a part of the first saw teeth are in contact connection with the second saw teeth and/or the third saw teeth through the first tooth surface;
preferably, the first tooth surface comprises a first sub surface and a second sub surface facing two adjacent first limiting spaces, the first sub surfaces are located on the same side of the first sawteeth, and the magnetic attraction component is arranged on the first sub surfaces.
5. The support assembly of claim 4,
the second sawtooth is provided with a second tooth surface facing the second limiting space, the magnetic attraction component is arranged on the second tooth surface, and at least part of the second sawtooth is in contact connection with the first tooth surface with the magnetic attraction component through the second tooth surface in the second state; and/or the presence of a gas in the gas,
the third sawtooth is provided with a third tooth surface facing the third limiting space, the magnetic attraction component is arranged on the third tooth surface, and in the second state, the third sawtooth is in contact connection with the first tooth surface with the magnetic attraction component through the third tooth surface.
6. The support assembly of claim 1, wherein the support plate comprises a flexible support layer;
preferably, the support plate comprises a rigid support layer arranged in a stack with the flexible support layer;
preferably, the two flexible support layers are respectively arranged at two sides of the rigid support layer, the first surface and the first saw teeth are positioned on one of the two flexible support layers, and the second surface and the second saw teeth are positioned on the other of the two flexible support layers;
preferably, the first saw teeth and the flexible support layer where the first saw teeth are located are integrally formed, or rigid saw teeth are arranged on one side, facing the first surface, of the rigid support layer, and the flexible support layer covers the rigid support layer and the rigid saw teeth to form the first saw teeth;
preferably, the second saw teeth and the flexible support layer where the second saw teeth are located are integrally formed, or rigid saw teeth are arranged on one side, facing the second surface, of the rigid support layer, and the flexible support layer covers the rigid support layer and the rigid saw teeth to form the second saw teeth.
7. The support assembly of claim 2,
in the first state, the size between two adjacent first saw teeth is gradually increased along the direction close to the winding shaft; and/or
The pitch of the adjacent third sawteeth at least partially decreases along the circumferential direction.
8. The support assembly of claim 2, wherein in the first state, a dimension between adjacent two of the second serrations gradually decreases in a direction toward the winding shaft.
9. A display device, comprising:
the support assembly of any one of claims 1-8;
and the flexible display panel is arranged on the first surface of the supporting plate and is positioned between the two groups of first sawteeth of the first surface opposite to each other in the first direction, so that the flexible display panel can be wound on the winding shaft along with the supporting plate.
10. The display device according to claim 9, wherein the flexible display panel has a display surface facing away from the first surface, and a distance between the display surface and the first surface in a thickness direction of the flexible display panel is smaller than or equal to a maximum distance between the first saw tooth and the first surface;
preferably, in a thickness direction of the flexible display panel, a distance between the display surface and the first surface is smaller than or equal to a minimum distance between the first saw tooth and the first surface.
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| CN202111462705.1A CN114141146B (en) | 2021-12-02 | 2021-12-02 | Support assembly and display device |
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| CN202111462705.1A CN114141146B (en) | 2021-12-02 | 2021-12-02 | Support assembly and display device |
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