CN113160706A - Supporting device and flexible display equipment - Google Patents
Supporting device and flexible display equipment Download PDFInfo
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- CN113160706A CN113160706A CN202110343542.9A CN202110343542A CN113160706A CN 113160706 A CN113160706 A CN 113160706A CN 202110343542 A CN202110343542 A CN 202110343542A CN 113160706 A CN113160706 A CN 113160706A
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- 238000005452 bending Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000001154 acute effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000001360 synchronised effect Effects 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
Abstract
The invention relates to a supporting device and flexible display equipment, which have an unfolding state and a folding state and comprise a fixing assembly, wherein the fixing assembly comprises at least two fixing frames; the two adjacent fixing frames are connected through the connecting piece; the connecting piece comprises a plurality of connecting units which are connected with each other; the connecting unit comprises a supporting surface and a limiting surface, and the supporting surface and the limiting surface are mutually crossed; the connecting units also comprise connecting lugs, and adjacent connecting units are connected through the connecting lugs; in the unfolding state, the at least two fixing frames are arranged at intervals along a first direction, the supporting surface is parallel to the first direction, and the limiting surface is crossed with the first direction; the connecting unit is an N-sided polygon in the second direction, wherein N is more than or equal to 5; the second direction is parallel to the extending direction of the connecting unit, and the first direction is crossed with the second direction; under fold condition, the spacing faces of at least two connecting units are mutually abutted, and a first preset interval is arranged between two adjacent fixing frames. The invention can avoid the support device from being excessively bent.
Description
Technical Field
The invention relates to the technical field of display, in particular to a supporting device and flexible display equipment.
Background
With the development of display technology, consumers have increasingly diversified and personalized demands for display modes, display effects and the like of display devices. Compared with the traditional display device, the flexible functional screen has the advantages of being foldable, transparent, curved, flexible, stretchable and the like, and is widely favored by consumers.
At present, a flexible functional screen is generally unfolded and folded by a hinge, so that in an unfolded state, a supporting device provides a maximum display picture. However, most flexible functional panels are not limited in the degree of bending of the flexible panel when bending is achieved by the hinge structure, so that the flexible panel may be damaged due to excessive bending.
Therefore, a supporting device and a flexible display apparatus are needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a supporting device and a flexible display device so as to realize bidirectional bending of the flexible display device.
In a first aspect, an embodiment of the present invention provides a supporting device, which has an unfolded state and a folded state, and includes a fixing assembly, where the fixing assembly includes at least two fixing frames; the two adjacent fixing frames are connected through the connecting piece; the connecting piece comprises a plurality of connecting units which are connected with each other; the connecting unit comprises a supporting surface and a limiting surface, and the supporting surface and the limiting surface are mutually crossed; the connecting units also comprise connecting lugs, and adjacent connecting units are connected through the connecting lugs; in the unfolding state, the at least two fixing frames are arranged at intervals along a first direction, the supporting surface is parallel to the first direction, and the limiting surface is crossed with the first direction; the connecting unit is an N-sided polygon in the second direction, wherein N is more than or equal to 5; the second direction is parallel to the extending direction of the connecting unit, and the first direction is crossed with the second direction; under fold condition, the spacing faces of at least two connecting units are mutually abutted, and a first preset interval is arranged between two adjacent fixing frames.
In a second aspect, an embodiment of the present invention further provides a flexible display device, including a flexible display screen and a supporting device for supporting the flexible display screen, where the supporting device is the supporting device described above.
According to the supporting device and the flexible display equipment provided by the embodiment of the invention, the plurality of connecting units which are connected with each other are arranged, each connecting unit comprises a supporting surface and a limiting surface, and the limiting surfaces of at least two connecting units are mutually abutted under the condition that the supporting device is folded, so that a first preset interval is kept between the fixing frames at two sides of each connecting unit, the supporting device can be prevented from being bent excessively, and further the flexible display equipment can be prevented from being damaged due to excessive bending.
Drawings
Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. The figures are not drawn to scale.
FIG. 1 shows a partial schematic of a hinge structure in a prior art design;
FIG. 2 is a schematic structural diagram of a supporting device according to an embodiment of the present invention;
FIG. 3 shows a schematic cross-sectional view of the connection unit of the support device shown in FIG. 2;
FIG. 4 is a schematic structural diagram illustrating a first folded state of a support device provided by an embodiment of the present invention;
fig. 5 is a schematic structural view illustrating a second folded state of the supporting device according to the embodiment of the present invention;
FIG. 6 is a partial cross-sectional illustration of a connector of another support device provided by an embodiment of the present invention;
FIG. 7 is a partial cross-sectional illustration of a connector of yet another support device provided by an embodiment of the present invention;
FIG. 8 is a partial cross-sectional illustration of a connector of yet another support device provided by an embodiment of the present invention;
FIG. 9 is a partial cross-sectional illustration of a connector of yet another support device provided by an embodiment of the present invention;
FIG. 10 is a schematic partial cross-sectional view of a connector of another support device provided in accordance with an embodiment of the present invention;
FIG. 11 is a schematic partial cross-sectional view of a connector of another support device provided in accordance with an embodiment of the present invention;
FIG. 12 is a schematic view showing the structure of a connection unit in the connector of FIG. 11;
fig. 13 is a schematic structural diagram illustrating two adjacent connection units of another support device provided by an embodiment of the invention;
fig. 14 is a schematic structural diagram illustrating two adjacent connection units of another support device provided by an embodiment of the invention;
FIG. 15 is a partial cross-sectional structural view illustrating a connecting member of a supporting device according to another embodiment of the present invention;
FIG. 16 is a partial cross-sectional structural view illustrating a connecting member of a supporting device according to another embodiment of the present invention;
FIG. 17 is a schematic view showing the structure of each connecting unit in the connector of FIG. 16;
FIG. 18 is a partial cross-sectional structural view illustrating a connecting member of a support device according to another embodiment of the present invention;
FIG. 19 is a schematic view showing the structure of each of the connection units in the connector of FIG. 18;
FIG. 20 is a partial cross-sectional structural view illustrating a connecting member of a supporting device according to another embodiment of the present invention;
FIG. 21 is a schematic view showing the structure of each connection unit in the connector of FIG. 20;
FIG. 22 is a schematic view, partly in section, of a support device according to an embodiment of the invention in a first, folded state;
FIG. 23 is a schematic view, partially in cross-section, of a support device according to an embodiment of the present invention in a second, folded state;
fig. 24 is a schematic structural diagram of a flexible display device according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention 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 invention. It will be apparent, however, to one skilled in the art that the present invention 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 invention by illustrating examples of the present invention. 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 invention; 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.
The following description is given with the directional terms as viewed in the drawing, and is not intended to limit the specific structure of the invention. In the description of the present invention, it should also 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 invention can be understood as appropriate to those of ordinary skill in the art.
Fig. 1 is a partial structural schematic view of a conventional hinge structure, and referring to fig. 1, a first member 1 and a second member 2 are connected by a hinge unit, a flexible display screen 4 is disposed on the first member 1 and the second member 2, the hinge unit includes a shaft 31 and a hinge 32, and since the shaft 31 and the hinge 32 can be hinged and can rotate at any angle, the flexible display screen 4 is easily squeezed and creased during folding; the flexible display screen 4 is easily pulled in the process of folding outwards, and the service life of the flexible display screen 4 is further influenced.
Fig. 2 is a schematic structural view of a support device 100 according to an embodiment of the present invention, fig. 3 is a schematic cross-sectional view of a connection unit of the support device shown in fig. 2, and referring to fig. 2 and 3 together, the support device 100 according to an embodiment of the present invention has an unfolded state and a folded state, and includes a fixing assembly 10 and a connection member 20. The fixing assembly 10 comprises at least two fixing pieces 11; two adjacent fixing pieces 11 are connected through a connecting piece 20; the connector 20 includes a plurality of connection units 21 connected to each other; the connecting unit 21 comprises a supporting surface 211 and a limiting surface 212, wherein the supporting surface 211 and the limiting surface 212 are mutually crossed; the connecting units 21 further comprise connecting lugs 213, and adjacent connecting units 21 are connected through the connecting lugs 213; in the expanded state, the at least two fixing members 11 are arranged at intervals along the first direction X, the supporting surface 211 is parallel to the first direction X, and the limiting surface 212 is crossed with the first direction X; the connecting unit 21 is an N-sided polygon in the second direction Y, wherein N is more than or equal to 5; the second direction Y is parallel to the extending direction of the connection unit 21, and the first direction X intersects the second direction Y; in the folded state, the limiting surfaces 212 of at least two connecting units 21 are abutted to each other, and a first preset distance is provided between two adjacent fixing pieces 11.
In the above embodiment, the supporting surface 211 is parallel to the first direction X and the second direction Y is parallel to the extending direction of the connecting unit 21, and the parallel is not mathematically parallel but parallel within an allowable error range. The first direction X is an arrangement direction of the plurality of connection units 21 in the expanded state. The second direction Y is an extending direction of the connection unit 21. The first interval of predetermineeing can be set for according to flexible display screen thickness, and the first interval of predetermineeing is the twice of flexible display screen thickness at least to prevent that flexible display screen from damaging because of the extrusion. In some embodiments, the first predetermined pitch may be twice the thickness of the flexible display.
It should be noted that the connecting unit 21 is N-sided in the second direction Y, that is, the cross section of the connecting unit 21 along the first direction X is N-sided, where N is greater than or equal to 5, so that the limiting surfaces 212 of at least two connecting units 21 abut against each other in the folded state of the supporting device 100, and the supporting device 100 has at least one folded state. The specific shape of the connection unit 21 in the second direction Y is not limited herein, for example, the connection unit 21 may be a polygon such as a pentagon, a hexagon, a heptagon or an octagon in the second direction Y, and may be selected according to actual requirements.
It can be understood that, in order to maintain a certain distance between the flexible display panel 30 disposed on the supporting device 100 when bending, a first preset distance should be provided between two adjacent fixing members 11 to prevent the supporting device 100 from bending excessively and damage the flexible display device.
According to the supporting device 100 provided by the embodiment of the invention, the plurality of connecting units 21 connected with each other are arranged, each connecting unit 21 comprises the supporting surface 211 and the limiting surface 212, and in the folding state of the supporting device 100, the limiting surfaces 212 of at least two connecting units 21 are mutually abutted, so that the fixing pieces 11 at two sides of each connecting unit 21 keep a first preset distance, the supporting device 100 can be prevented from being bent excessively, and further, the flexible display equipment can be prevented from being damaged due to excessive bending.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 4 shows a schematic structural diagram of a first folding state of the supporting device provided by the embodiment of the present invention, and fig. 5 shows a schematic structural diagram of a second folding state of the supporting device provided by the embodiment of the present invention, and referring to fig. 4 and fig. 5, the folding states include a first folding state and a second folding state, wherein the folding direction of the first folding state is opposite to that of the second folding state, for example, when the first folding state is an outward folding state, i.e., the flexible display 30 is opposite to the back (as in fig. 4), then the second folding state is an inward folding state, i.e., the flexible display 30 is opposite to the back (as in fig. 5).
The supporting surface 211 and the stopper surface 212 in the embodiment of the present invention will be specifically described below by taking the first folded state by external folding and the second folded state by internal folding as examples. Referring to fig. 4, in the first folded state, the connection unit 21 at least includes a pair of limiting surfaces 212a and 212b and a supporting surface 211 opposite to the pair of limiting surfaces; referring to fig. 5, in the second folded state, the connection unit 21 at least includes a pair of limiting surfaces 212c and 212 d. Because the connection units 21 in the connector are mutually abutted by the limiting surfaces 212, the first preset interval can be kept between the fixing pieces 11 on two sides of the connection units 21, the support device 100 is prevented from being excessively bent, and the flexible display device can be prevented from being damaged due to excessive bending.
Fig. 6 to 9 illustrate several examples of the connection unit 21 of the support device 100 provided in the embodiment of the present invention being N-shaped in the second direction, and exemplarily, referring to fig. 6 and 7, when the connection unit 21 is pentagonal or hexagonal in the second direction, that is, N is 5 or N is 6, since the connection unit 21 includes a pair of limiting surfaces 212, the support device 100 can be bent at least in one direction, that is, the support device 100 can achieve one of the first folded state and the second folded state, and simultaneously avoid the problem that the display panel is creased due to the excessive bending of the connection member. Referring to fig. 8 and 9, when N is 7 or 8, the connection unit 21 is heptagon or octagon in the second direction, at this time, the connection unit 21 includes two pairs of limiting surfaces 212, and no matter which direction the support device 100 bends, all there is a limiting surface to abut between the adjacent connection units, and then can realize bidirectional bending, that is, the support device 100 can realize the first folding state and the second folding state simultaneously, and solve the problem that the transition bending of the support device leads to poor display of the flexible display screen.
Optionally, when the supporting device 100 is in the unfolded state, the supporting surfaces 211 of the plurality of connecting units 21 are located on the same plane, so as to ensure that the flexible display screen 30 connected to the supporting device 100 is attached to the surfaces of the plurality of supporting surfaces 211 in the unfolded state, thereby ensuring that the flexible display screen 30 is in a planar state in the unfolded state, and avoiding the flexible display screen 30 from being bent.
It should be noted that, the arrangement position of the connection lug 213 is not limited herein, referring to fig. 3, in some embodiments, the connection unit 21 further includes a pair of connection surfaces 214, the connection surfaces 214 are connected to the adjacent limiting surfaces 212, and the connection lug 213 may be arranged on the connection surfaces 214, at this time, the two connection lugs 213 respectively extend from the connection surfaces 214 of the connection unit 21 to the connection units 21 adjacent to both sides along the first direction, so as to ensure the movable connection between one connection unit 21 and the adjacent other connection unit 21, and further enable the support device 100 to be unfolded and folded.
Fig. 10 is a partial cross-sectional view illustrating a connector of another supporting device according to an embodiment of the present invention, referring to fig. 10, in another embodiment, the connecting unit 21 further includes a pair of end surfaces 215, the end surfaces 215 are disposed at two ends of the connecting unit 21 along the second direction, and the connecting lugs 213 can be disposed at the end surfaces 215, in which case, the two connecting lugs 213 respectively extend from the end surfaces 215 of the connecting unit 21 to the adjacent connecting unit 21 along the first direction X, so as to ensure the movable connection between one connecting unit 21 and the adjacent other connecting unit 21, thereby enabling the supporting device 100 to unfold and bend; in addition, the lug 213 may be integrally formed with the connection unit 21 to ensure relative fixation.
When the connecting lug 213 is disposed on the connecting surface 214 or the end surface 215 of the connecting unit 21, for two connecting lugs 213 connected to each other, one of the connecting lugs 213 is provided with a limiting groove 2131, and the other connecting lug 213 is provided with a limiting protrusion 2132, and the limiting protrusion 2132 rotates or slides in the corresponding limiting groove 2131, so that the supporting device 100 is unfolded and bent.
In some optional embodiments, the fixing member 11 and the adjacent connecting unit 21 may be connected by the connecting lug 213, a limiting groove 2131 may be disposed on the connecting lug of one of the fixing member 11 and the adjacent connecting unit 21, a limiting protrusion is disposed on the connecting lug of the other one, and the limiting protrusion 2132 is inserted into the corresponding limiting groove 2131, so as to achieve a stable connection between the fixing member 11 and the connecting member 20.
Fig. 11 is a partial cross-sectional view of a connecting member of another supporting device according to an embodiment of the present invention, and fig. 12 is a schematic structural view of each connecting unit in the connecting member of fig. 11, referring to fig. 11 and 12 together, in some embodiments, the limiting groove 2131 may be circular, and the limiting protrusion 2132 is spherical matching with the limiting groove to ensure that the limiting protrusion 2132 can rotate in the corresponding limiting groove 2131; with continued reference to fig. 4, in other embodiments, the limiting grooves 2131 may be racetrack shaped to ensure that the limiting protrusions 2132 can slide within the corresponding limiting grooves 2131.
Fig. 13 is a schematic structural diagram of an adjacent connecting unit of another supporting device according to an embodiment of the present invention, fig. 14 is a schematic structural diagram of an adjacent connecting unit of another supporting device according to an embodiment of the present invention, and fig. 13 and 14 are also referred to together. In some embodiments, the connection unit 21 includes one sub-connection unit 21d, adjacent sub-connection units 21d are connected by the connection lug 213, the sub-connection unit 21d extends along the second direction Y, and the length of the sub-connection unit 21d is identical to that of the adjacent connection unit 21. In other embodiments, the connection unit 21 includes a plurality of sub-connection units 21d, the plurality of sub-connection units 21d are arranged along the second direction Y, the length of the sub-connection unit 21d in this embodiment may be selected according to actual needs, and any two adjacent sub-connection units 21d are fixedly connected to implement synchronous unfolding or folding of the adjacent sub-connection units 21 d.
In some alternative embodiments, the connector 20 includes 2N +1 connection units 21, where N is a positive integer, that is, when N is 1, the connector 20 includes 3 connection units 21, when N is 2, the connector 20 includes 5 connection units 21, and so on. Setting the number of the connection units 21 to an odd number such as 3, 5, 7 … … 2N +1, etc., enables the number of the connection units 21 on both sides of the (N + 1) th connection unit to be equal, so that the central axis around which all the connection units 21 are folded coincides with the central axis of the (N + 1) th connection unit 21, to realize the bending or flattening of the support device 100 by the approaching or departing of the connection units 21 on both sides of the (N + 1) th connection unit 21.
Fig. 15 is a partial cross-sectional structural view illustrating a connecting member of a supporting device according to another embodiment of the present invention, and referring to fig. 15, in some alternative embodiments, the connecting member 20 includes a first connecting unit 21a, a second connecting unit 21b, and a third connecting unit 21 c; in the expanded state, the (N + 1) th connecting unit 21 is the second connecting unit 21b along the first direction X, the first connecting unit 21a and the third connecting unit 21c are located on two sides of the second connecting unit 21b along the first direction X, and the supporting surfaces 211 of the first connecting unit 21a, the second connecting unit 21b and the third connecting unit 21c are located on the same plane.
It should be noted that, in the embodiment of the present invention, the number of the first connection units 21a and the third connection units 21c is not limited, and the first connection units 21a and the third connection units 21c are respectively arranged on both sides of the second connection unit 21 b. In some embodiments, the number of the first connection units 21a and the third connection units 21c is equal, so that the first connection units 21a and the third connection units 21c can rotate around the central axis of the second connection unit 21b at the same time, and the support device 100 can be bent or flattened by approaching or departing the first connection units 21a and the second connection units 21 b.
Fig. 16 is a partial sectional schematic view illustrating a connecting member of a supporting device according to another embodiment of the present invention, fig. 17 is a schematic structural view illustrating each connecting unit in the connecting member of fig. 16, and referring to fig. 16 and fig. 17, in an expanded state, a limiting groove 2131 is disposed on a lug 213 of a second connecting unit 21b close to a first connecting unit 21a, and a limiting groove 2131 is disposed on a lug 213 of a second connecting unit 21b close to a third connecting unit 21 c; the first connecting unit 21a is provided with a limiting protrusion 2132 on the lug 213 close to the second connecting unit 21b, the third connecting unit 21c is provided with a limiting protrusion 2132 on the lug 213 close to the second connecting unit 21b, in the unfolded state, the limiting groove 2131 includes a first side wall 2131a and a second side wall 2131b opposite to each other in the first direction X, wherein the first side wall 2131a is located on one side of the second side wall 2131b close to the second connecting unit 21b, the limiting protrusion 2132 slides in the corresponding limiting groove 2131, and in the folded state, the limiting protrusion of the first connecting unit 21a and the limiting protrusion of the third connecting unit 21c can abut against the first side wall or the second side wall of the limiting groove 2131 of the respective adjacent second connecting unit 21b, so as to unfold and bend the supporting device 100.
With reference to fig. 16 and 17 and with continued reference to fig. 4, in some alternative embodiments, the folding states include a first folding state, in the first folding state, the connection lugs 213 of the first connection unit 21a, the second connection unit 21b and the third connection unit 21c may be disposed on the connection surfaces 214 on both sides, and the limiting protrusions 2132 of the first connection unit 21a and the limiting protrusions 2132 of the third connection unit 21c are abutted against the first side walls 2131a of the limiting grooves 2131 of the second connection unit 21b, so as to avoid the support device 100 from being bent excessively, thereby preventing the flexible display 30 from being stretched excessively, and ensuring that the flexible display 30 has a sufficient folding space.
With reference to fig. 16 and 17 and with continued reference to fig. 5, in other alternative embodiments, the folded states include a second folded state in which the limiting protrusions 2132 of the first connecting unit 21a and the limiting protrusions 2132 of the third connecting unit 21c are abutted against the second side walls of the limiting grooves 2131 of the second connecting unit 21b, so as to avoid over-squeezing or stretching of the supporting device 100, thereby preventing the over-squeezing of the flexible display screen and ensuring that the flexible display screen 30 has a sufficient folding space.
Fig. 18 is a partial sectional schematic view of a connecting piece of a further supporting device according to an embodiment of the present invention, fig. 19 is a schematic structural view of each connecting unit in the connecting piece of fig. 18, and referring to fig. 18 and fig. 19 together, in an expanded state, a limiting protrusion 2132 is disposed on a lug 213 of a second connecting unit 21b close to a first connecting unit 21a, and a limiting protrusion 2132 is disposed on a lug 213 of the second connecting unit 21b close to a third connecting unit 21 c; the first connecting unit 21a is provided with a limiting groove 2131 on the connecting lug 213 close to the second connecting unit 21b, the third connecting unit 21c is provided with a limiting groove 2131 on the connecting lug 213 close to the second connecting unit 21b, and limiting protrusions 2132 on the connecting lugs on two sides of the second connecting unit 21b are respectively inserted into the first connecting unit 21a and the third connecting unit 21c to realize the interconnection of the first connecting unit 21a, the second connecting unit 21b and the third connecting unit 21. Set up so and to realize on the one hand can connecting through connecing the ear between the adjacent linkage unit, on the other hand because first linkage unit can keep the complete unanimity with the third linkage unit, can use same process in the manufacturing process, practice thrift the cost of manufacture.
Fig. 20 is a partial sectional view illustrating a connector of a support device according to another embodiment of the present invention, fig. 21 is a schematic structural view illustrating each connection unit in the connector of fig. 20, and referring to fig. 20 and fig. 21 together, in an unfolded state, a limit protrusion 2132 is disposed on a connection lug 213 of a second connection unit 21b close to a first connection unit 21a, a limit groove 2131 is disposed on a connection lug 213 of a second connection unit 21b close to a third connection unit 21c, a limit protrusion 2132 is disposed on one side of the connection lug of the second connection unit 21b, and a limit groove 2131 is disposed on the other side of the connection lug, in some embodiments, the connection lugs 213 on both sides of the first connection unit 21a and the third connection unit 21321 c may be disposed in a structure consistent with the connection lugs 213 on both sides of the second connection unit 21b, that is the connection lugs 213 on one side of the first connection unit 21a and the third connection unit 21c are disposed with limit protrusions 2132, the other side engaging lug 213 is provided with a limiting groove 2131, and the first connecting unit 21a, the second connecting unit 21b and the third connecting unit 21c are connected with each other by inserting the limiting protrusion 2132 into the limiting groove 2131. With this arrangement, the first connecting unit 21a, the second connecting unit 21b, and the third connecting unit 21c can be arranged in a uniform structure, which can simplify the process and reduce the production cost.
The supporting device 100 provided in the embodiment of the present invention is further described in detail with reference to an example where N is 1, the outer folding is a first folding state, the inner folding is a second folding state, the first connecting unit 21a, the second connecting unit 21b and the third connecting unit 21c are octagonal structures, the connecting lugs on both sides of the second connecting unit 21b are set as the limiting grooves 2131, and the connecting lugs 213 of the first connecting unit 21a and the third connecting unit 21c close to the second connecting unit 21b are set as the limiting protrusions 2132, where the supporting surface 211, the limiting surface 121 and the connecting surface 214 in this embodiment are the supporting surface 211, the limiting surface 212 and the connecting surface 214 of the second connecting unit 21 b.
Fig. 22 is a schematic partial cross-sectional view of a first folded state of a support device according to an embodiment of the present invention, fig. 23 is a schematic partial cross-sectional view of a second folded state of a support device according to an embodiment of the present invention, and referring to fig. 22 and 23 together, the support device 100 satisfies the following relationships in the folded-out and folded-in states:
the acute angle θ formed by the limiting surface 212 and the supporting surface 211 of the second connecting unit 21b satisfies the following relation:
θ2＜θ＜θ1；
wherein, theta1In a folded state, an included angle between a perpendicular line of an intersecting plane of an extension plane from the center of the limiting protrusion 2132 to the connection plane 214 and an extension plane of the support plane 211 and the support plane 211; theta2In a folded state, an included angle between a perpendicular line from the center of the limiting protrusion 2132 to the center line of the supporting surface 211 along the second direction and the supporting surface 211 is included, and the folded state includes a first folded state and a second folded state; theta1And theta2Satisfies the following conditions:
θ1＝arctan(L1/L3)；
θ2＝arctan(L1/L2)；
wherein L is1Is the vertical distance, L, from the center of the limiting projection 2132 to the supporting surface 2112Is the vertical distance L from the center of the limiting projection 2132 to the central axis of the second connecting unit 21b3To limit the vertical distance from the center of the protrusion 2132 to the adjacent connecting surface 214. Substantially theta as described by the above formula1And theta2Be the maximum value and the minimum value of the acute angle theta that is between spacing face 212 and the holding surface 211 respectively, through limiting the acute angle theta that is between spacing face 212 and the holding surface 211, can restrict the first preset distance between the adjacent fixing piece 11, guarantee flexible display screen infolding sufficient space of buckling occasionally, prevent that flexible display screen from damaging because of the extrusion.
With continued reference to fig. 2, in the first folded state, the following relationship is satisfied:
(2d+e)π/2＜c；
where c is a distance between edges of the supporting surfaces 211, which are located on the same plane, of the first connecting unit 21a and the third connecting unit 21c, which are close to the second connecting unit 21b in the unfolded state, d is a distance between the supporting surfaces 211 of the first connecting unit 21a or the third connecting unit 21c, and e is a length of the supporting surface 211 of the second connecting unit 21b along the first direction X.
As stated in the above formula, c may be: in the unfolded state, the length of the flexible display screen between the edges of the supporting surface 211, which is close to the second connecting unit 21b, of the first connecting unit 21a and the third connecting unit 21c, which are located on the same plane, i.e. the length of the bending region when the flexible display screen is folded outwards, (2d + e) pi/2 is equivalent to: when folding outward, the length after the district of buckling of above-mentioned flexible display screen is buckled for the length of flexible display screen bending zone under the expansion is greater than the length when folding outward, guarantees flexible display screen bending zone and rolls over sufficient space of buckling occasionally outward, avoids the district of buckling to stretch and damage.
With continued reference to fig. 4, in the second folded state, the following relationship is satisfied:
4b≥c+a；
where a is a length of the supporting surface 211 of the first connecting unit 21a or the third connecting unit 21c along the first direction, b is a sliding distance of the limiting protrusion 2132 in the limiting groove 2131, and c is a distance between edges of the supporting surface 211, which are located on the same plane, of the first connecting unit 21a and the third connecting unit 21c and are close to the second connecting unit 21b in the unfolded state.
As stated in the above formula, c + a may be: under the expanded state, the length of flexible display screen between the holding surface 211 center that first linkage unit 21a and third linkage unit 21c are on the coplanar, the length of bending zone when the flexible display screen infolding promptly, 4b is spacing protruding 2132's the biggest sliding distance, through above restriction, can guarantee flexible display screen infolding sufficient bending space occasionally, avoid bending zone to receive the extrusion and damage.
Fig. 24 is a schematic structural diagram of a flexible display device according to an embodiment of the present invention, and referring to fig. 24, an embodiment of the present invention further provides a flexible display device 200, where the flexible display device 200 includes a flexible display screen 30 and any one of the supporting apparatuses 100 provided in the above embodiments that support the flexible display screen 30. Also, since the flexible display device 200 employs the supporting device 100 provided in the above embodiment, the advantageous effects of the supporting device 100 provided in the above embodiment are obtained.
The invention has been described with reference to a preferred embodiment, but various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any manner as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (15)
1. A support device having an expanded state and a collapsed state, comprising:
the fixing assembly comprises at least two fixing frames;
the two adjacent fixing frames are connected through the connecting piece; the connecting piece comprises a plurality of connecting units which are connected with each other; the connecting unit comprises a supporting surface and a limiting surface, and the supporting surface and the limiting surface are mutually crossed;
the connecting units also comprise connecting lugs, and the adjacent connecting units are connected through the connecting lugs;
in the unfolded state, the at least two fixing frames are arranged at intervals along a first direction, the supporting surface is parallel to the first direction, and the limiting surface is crossed with the first direction;
the connecting unit is an N-sided polygon in the second direction, wherein N is more than or equal to 5; the second direction is parallel to an extending direction of the connection unit, and the first direction intersects the second direction;
under fold condition, at least two the linkage unit spacing face butt each other, two are adjacent have first preset interval between the mount.
2. The support device of claim 1, wherein the support surfaces of the plurality of connection units are in the same plane in the deployed state.
3. The support device as claimed in claim 1, wherein the connection unit further comprises a pair of connection faces, the connection faces are connected with the adjacent limiting faces, and the connection lugs are arranged on the connection faces.
4. The support device of claim 1, wherein the connection unit further comprises a pair of end surfaces, the end surfaces are disposed at two ends of the connection unit along the second direction, and the engaging lugs are disposed at the end surfaces.
5. The supporting device as claimed in claim 1, wherein, for two connecting lugs connected with each other, one of the connecting lugs is provided with a limiting groove, and the other connecting lug is provided with a limiting bulge;
in the unfolded state, the limiting groove extends along the first direction and has a first preset length, and the limiting protrusion slides in the corresponding limiting groove.
6. The support device of claim 1, wherein the connection unit comprises a sub-connection unit extending along the second direction; or
The connecting unit comprises a plurality of sub-connecting units, the sub-connecting units are arranged along the second direction, and any two adjacent sub-connecting units are fixedly connected.
7. The support device of claim 1, wherein the connector comprises 2N +1 connector units, wherein N is a positive integer.
8. The support device of claim 7, wherein the connector comprises a first connection unit, a second connection unit, and a third connection unit;
in the unfolded state, the (N + 1) th connecting unit is the second connecting unit, the first connecting unit and the third connecting unit are positioned on two sides of the second connecting unit along the first direction, and the supporting surfaces of the first connecting unit, the second connecting unit and the third connecting unit are positioned on the same plane.
9. The support device of claim 8, wherein in the unfolded state, a limiting groove is formed on the connecting lug of the second connecting unit, which is close to the first connecting unit, and a limiting groove is formed on the connecting lug of the second connecting unit, which is close to the third connecting unit;
a limiting bulge is arranged on the connecting lug of the first connecting unit, which is close to the second connecting unit, and a limiting bulge is arranged on the connecting lug of the third connecting unit, which is close to the second connecting unit;
in the unfolded state, the limiting groove comprises a first side wall and a second side wall which are opposite to each other in the first direction, wherein the first side wall is located on one side, close to the second connecting unit, of the second side wall.
10. The support device of claim 8, wherein in the unfolded state, a limiting protrusion is arranged on the lug of the second connection unit close to the first connection unit, and a limiting protrusion is arranged on the lug of the second connection unit close to the third connection unit;
the first connecting unit is close to the second connecting unit and is provided with a limiting groove on the connecting lug, and the third connecting unit is close to the second connecting unit and is provided with a limiting groove on the connecting lug.
11. The support device of claim 8, wherein in the unfolded state, a limiting protrusion is arranged on the lug of the second connection unit close to the first connection unit, and a limiting groove is arranged on the lug of the second connection unit close to the third connection unit.
12. The support device of claim 9, wherein the folded state comprises a first folded state in which the limiting protrusion of the first connection unit and the limiting protrusion of the third connection unit are both abutted against the first side wall of the limiting groove of the second connection unit.
13. The support device of claim 9, wherein the folded state comprises a second folded state; and in the second folding state, the limiting bulges of the first connecting unit and the limiting bulges of the third connecting unit are abutted against the second side wall of the limiting groove of the second connecting unit.
14. The support device of claim 1, wherein the folded state comprises a first folded state and a second folded state, wherein the first folded state is folded in a direction opposite the second folded state.
15. A flexible display device comprising a flexible display screen and a support means for supporting the flexible display screen, the support means being as claimed in any one of claims 1 to 14.
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|---|---|---|---|
| CN202110343542.9A CN113160706A (en) | 2021-03-30 | 2021-03-30 | Supporting device and flexible display equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110343542.9A CN113160706A (en) | 2021-03-30 | 2021-03-30 | Supporting device and flexible display equipment |
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| CN113160706A true CN113160706A (en) | 2021-07-23 |
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Application publication date: 20210723 |