CN115083284B - Folding mechanism and flexible display panel - Google Patents
Folding mechanism and flexible display panel Download PDFInfo
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- CN115083284B CN115083284B CN202210785937.9A CN202210785937A CN115083284B CN 115083284 B CN115083284 B CN 115083284B CN 202210785937 A CN202210785937 A CN 202210785937A CN 115083284 B CN115083284 B CN 115083284B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 83
- 230000007306 turnover Effects 0.000 claims abstract description 60
- 238000005452 bending Methods 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 description 5
- 210000000006 pectoral fin Anatomy 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 230000016776 visual perception Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 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 application discloses a folding mechanism and a flexible display panel, wherein the folding mechanism comprises at least two turnover pieces, and a flattening posture and a folding posture are arranged between two adjacent turnover pieces; the supporting piece is arranged at the corresponding gap; the transmission mechanism is arranged at the gap, one end of the transmission mechanism is fixedly connected with the overturning piece, the other end of the transmission mechanism is connected with the supporting piece, and the transmission mechanism is used for driving the supporting piece to move when the overturning piece overturns. According to the application, when the turnover piece is turned over to drive the flexible screen body to fold, the supporting piece is driven to move towards the flexible screen through the transmission mechanism, so that the bending part is attached to the wall of the supporting groove during folding, and therefore, limit boundary constraint is wrapped on the screen body, the problem that folds are easy to occur when the bending part is folded freely is avoided, and when the turnover piece is in an unfolding state, a gap is arranged between the supporting piece and the bending part, and the unfolding of the flexible screen body is prevented from being influenced, so that the folding problem of the flexible screen body is effectively improved.
Description
Technical Field
The present application relates to the field of display devices, and in particular, to a folding mechanism and a flexible display panel.
Background
Compared with other flexible screen bodies, the folding screen has higher performance, and the original performance still needs to be maintained after the folding screen is continuously folded and flattened. Due to creep relaxation characteristics of the rubber material, unavoidable folds appear on the screen body after the screen body is folded and flattened, so that the flatness of the screen body is reduced, and the visual perception of a user is greatly influenced. Folding for a long time causes the folds of the screen to be enlarged and even leads to failure of the flexible screen.
Disclosure of Invention
The application mainly solves the technical problem of providing a folding mechanism, a flexible display panel and an electronic device, so as to solve the problem that the screen body in the prior art is inevitably folded after being folded and flattened, not only reduces the flatness of the screen body, but also greatly influences the visual perception of a user. The long-time folding causes the crease of the screen body to be enlarged, and even causes the technical problem that the flexible screen body is invalid.
In order to solve the technical problems, the application adopts a technical scheme that: there is provided a folding mechanism comprising:
the overturning parts are arranged at intervals to form a gap, the overturning parts are provided with supporting surfaces for supporting the flexible parts, the overturning parts can overturn around the gap, so that a flattening posture and a folding posture are arranged between the two adjacent overturning parts, and when the two adjacent overturning parts are switched from the flattening posture to the folding posture, the supporting surfaces of the two adjacent overturning parts gradually tend to be arranged oppositely;
the supporting piece is arranged at the position corresponding to the gap; the support has opposed first and second surfaces; when the two adjacent turnover pieces are in a flattened posture, the first surface and the supporting surface face the same direction, and the second surface and the supporting surface face opposite directions;
the transmission mechanism is arranged at the gap, one end of the transmission mechanism is fixedly connected with the overturning piece, the other end of the transmission mechanism is connected with the supporting piece, and the transmission mechanism is used for driving the supporting piece to move when the overturning piece overturns;
wherein when two adjacent turning pieces are switched from the flattened posture to the folded posture, the transmission mechanism drives the supporting pieces to move along the direction from the second surface to the first surface; when two adjacent turnover pieces are switched from the folded posture to the flattened posture, the transmission mechanism drives the support piece to move along the direction from the first surface to the second surface.
In one embodiment, the transmission mechanism comprises a first gear, the first gear is fixedly connected with the turnover piece, and the turnover piece can be rotatably arranged around the central shaft of the first gear.
Preferably, the two first gears correspondingly connected with the two adjacent turnover pieces are meshed with each other, and/or the second gears correspondingly connected with the two adjacent turnover pieces are fixed on the first gears through coaxial pins and meshed with each other.
In one embodiment, the transmission mechanism further comprises:
the rack is meshed with the first gear, so that the first gear drives the rack to move along the extending direction when rotating;
and one end of the connecting piece is connected with the rack, and the other end of the connecting piece is connected with the supporting piece, so that the supporting piece is driven to move when the rack moves.
In one embodiment, the extending direction of the rack is parallel to the moving direction of the supporting member, one end of the connecting member is fixedly connected with the rack, and the other end of the connecting member is fixedly connected with the supporting member.
In one embodiment, the transmission mechanism further comprises a cross bar; the two racks are connected through the cross rod to form a rack frame, and the two first gears correspondingly connected with the two adjacent turnover pieces are arranged in the rack frame and are respectively correspondingly meshed with one rack; when two adjacent turnover pieces are switched from the flattening posture to the folding posture, the rack frames synchronously drive the supporting pieces to move along the direction from the second surface to the first surface; when two adjacent turnover pieces are switched from the folding posture to the flattening posture, the rack frames synchronously drive the supporting pieces to move along the direction from the first surface to the second surface.
Preferably, the top end of the connecting piece is fixed with the bottom surface of the rack frame, and the bottom end of the connecting piece is fixed with the supporting piece.
In one embodiment, the direction of extension of the rack is perpendicular to the direction of movement of the support; one end of the connecting piece is hinged with the rack, and the other end of the connecting piece is hinged with the supporting piece.
Preferably, one end of the rack is provided with a sliding block, one end of the connecting piece is hinged with the sliding block, and the other end of the connecting piece is hinged with the supporting piece.
In one embodiment, the transmission mechanism further comprises a mounting frame, and the two racks are arranged in the mounting frame; two first gears correspondingly connected with two adjacent turnover pieces are arranged in the mounting frame and are respectively correspondingly meshed with one rack; when two adjacent turnover pieces are switched from the flattening posture to the folding posture, the two racks are far away from each other so as to drive the support piece to move along the direction from the second surface to the first surface; when the two adjacent turnover pieces are switched from the folded posture to the flattened posture, the two racks are close to each other to drive the support piece to move along the direction from the first surface to the second surface.
Preferably, a sliding groove matched with the sliding block and extending along the extending direction of the rack is formed in the bottom surface in the frame of the installation frame, and the sliding block is arranged along the sliding groove in a sliding manner.
In one embodiment, the two transmission mechanisms are respectively arranged at two ends of the supporting piece along the central axis direction of the gap and are positioned between two adjacent overturning pieces.
In one embodiment, the surface of the support member facing the flexible member is provided with a support groove, and the support groove is extended along the central axis direction of the gap.
Preferably, the cross section of the supporting groove is arc-shaped.
Preferably, the turnover piece is plate-shaped, and the supporting piece is a strip-shaped plate.
In order to solve the technical problems, the application adopts another technical scheme that: provided is a flexible display panel including:
the folding mechanism of any one of the above embodiments; and
the support piece and the turnover piece are positioned on the same side of the flexible screen body; the flexible screen body includes:
the bending part is arranged at the position corresponding to the gap;
the non-bending parts are arranged on two sides of the bending part, and each side of the non-bending parts are attached to the supporting surface of the turnover piece on the same side;
when the two overturning plates are switched from the flattening posture to the folding posture, the bending parts are driven to fold, the supporting piece moves towards the direction of the bending parts so that the bending parts are attached to and supported on the first surface, when the two overturning plates are switched from the folding state to the flattening posture, the bending parts are driven to flatten, and the supporting piece moves towards the direction away from the bending parts so that the bending parts are arranged at intervals with the supporting piece.
The application has the beneficial effects that compared with the prior art, the application has the following advantages:
the folding mechanism is arranged on the back of the flexible screen body and consists of at least two turnover pieces arranged at intervals and the supporting pieces arranged corresponding to gaps of the adjacent turnover pieces, the supporting pieces are arranged at the positions corresponding to the bending parts of the flexible screen body, when the turnover pieces turn over to drive the flexible screen body to fold, the supporting pieces are driven to move towards the flexible screen through the transmission mechanism, the bending parts are attached to the surfaces of the supporting pieces during folding, so that the screen body is wrapped and limited in boundary constraint, the supporting grooves are formed in the surfaces of the supporting pieces, the groove wall shapes of the supporting grooves are limited, the problem that folds are easy to occur when the bending parts are freely folded is effectively avoided, and when the turnover pieces are in an unfolding state, the gaps are arranged between the supporting pieces and the bending parts, so that the unfolding of the flexible screen body is prevented from being influenced, and the folding problem of the flexible screen body is effectively improved;
the transmission mechanism adopts gear transmission, realizes linkage between the overturning piece and the supporting piece through the matching of the gear and the rack, has high transmission precision, long service life and low structure cost.
Drawings
FIG. 1 is a schematic view showing an unfolded state structure of an embodiment of a flexible display panel according to the present application;
FIG. 2 is a schematic view showing a folded structure of an embodiment of a flexible display panel according to the present application;
FIG. 3 is a schematic view showing an unfolded state of an embodiment of the folding mechanism according to the present application;
FIG. 4 is a schematic view showing a folded state of an embodiment of the folding mechanism according to the present application;
FIG. 5 is a schematic view showing a folded structure of an embodiment of the flexible screen of the present application;
FIG. 6 is an enlarged partial schematic view of FIG. 3A;
FIG. 7 is an enlarged partial schematic view of B in FIG. 4;
FIG. 8 is a schematic view of the structure of an embodiment of the support of the present application;
FIG. 9 is a schematic view of the structure of an embodiment of the flip member of the present application;
FIG. 10 is an enlarged partial schematic view of C in FIG. 9;
FIG. 11 is a schematic view of an unfolded configuration of another embodiment of the folding mechanism of the present application;
fig. 12 is a schematic view of a folding structure of another embodiment of the folding mechanism of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1 and 2, fig. 1 is a schematic view illustrating an unfolded state structure of an embodiment of a flexible display panel according to the present application, and fig. 2 is a schematic view illustrating a folded state structure of an embodiment of a flexible display panel according to the present application. The flexible display panel specifically comprises a folding mechanism 10 and a flexible screen 20 arranged on one side surface of the folding mechanism 10.
The flexible screen 20 includes a bending portion 200 and non-bending portions 201 disposed on both sides of the bending portion 200. The bending portion 200 refers to a portion of the flexible screen body 20 that has greater flexibility and can be repeatedly folded and unfolded, and the specific setting position of the bending portion can be determined according to the product specification. As shown in fig. 1 and 2, the flexible screen 20 is rectangular, and a bending portion 200 is disposed in the middle of the flexible screen 20, that is, the flexible screen 20 may be bent into two folds; in other embodiments, the plurality of bending portions 200 may be disposed at different positions of the flexible screen 20, for example, the flexible screen 20 may be bent into three folds.
The folding mechanism 10 is disposed on the back of the flexible screen 20, and is used for driving the flexible screen 20 to fold and unfold. The folding mechanism 10 includes two flippers 100 that are spaced apart to form a gap 101 and a support 102 disposed at a corresponding gap 101. The support 102 and the flip 100 are located on the same side of the flexible screen 20.
The turnover pieces 100 have a supporting surface 1000 for supporting the flexible screen 20, and the two turnover pieces 100 are disposed in one-to-one correspondence with the two non-bending portions 201 so that the gap 101 is located at a position corresponding to the bending portion 200. Meanwhile, the two turnover pieces 100 can be turned around the central axis a of the gap 101, so that the two turnover pieces 100 have an unfolding posture and a folding posture, and drive the flexible screen body 20 to be in an unfolding and folding state. When the adjacent two turn-ups 100 are switched from the flattened posture to the folded posture, the support surfaces 1000 of the adjacent two turn-ups 100 gradually tend to be disposed opposite each other.
The support 102 has opposed first and second surfaces 1021, 1022; and when two adjacent turning pieces 100 are in the flattened posture, the first surface 1021 and the supporting surface 1000 face the same direction, and the second surface 1022 and the supporting surface 1000 face opposite directions, that is, when two adjacent turning pieces 100 are in the flattened posture, the first surface 1021 and the supporting surface 1000 face the flexible screen 20, and the second surface 1022 faces away from the flexible screen 20.
The first surface 1021 of the support 102 is provided with a support groove 1020, and the support groove 1020 extends along the central axis a of the gap 100.
A transmission mechanism 103 is arranged between the turnover piece 100 and the support piece 102, one end of the transmission mechanism 103 is fixedly connected with the turnover piece 100, the other end of the transmission mechanism 103 is connected with the support piece 102, and the transmission mechanism 103 is used for driving the support piece 102 to move towards or away from the bending part 200 of the flexible screen body 20 when the turnover piece 100 turns. The support 102 moves towards the bend 200 of the flexible screen 20, i.e. the support 102 moves in a direction from the second surface 1022 to the first surface 1021; the support 102 moves away from the bend 200 of the flexible screen 20, i.e., the support 102 moves in a direction from the first surface 1021 to the second surface 1022.
As shown in fig. 1, when the two flippers 100 are in the unfolded state, there is a space between the supporter 102 and the bent portion 200, and the supporting groove 1020 is not in contact with the bent portion 200;
as shown in fig. 2, when the two turning pieces 100 are switched from the unfolded posture to the folded posture, the turning pieces 100 drive the supporting pieces 102 to move towards the flexible screen body 20 through the transmission mechanism 103, so that the bending portion 200 is attached to and supported by the wall of the supporting groove 1020 in the folded posture, thereby defining the folded state of the bending portion 200, effectively avoiding the problem that the folding is easy to generate at the folding position when the bending portion 200 is freely folded, improving the flatness in the unfolded state, and further improving the folding.
It should be understood that, in other embodiments, when the flexible screen 20 is provided with a plurality of bending portions 200, the folding mechanism 10 may also include a plurality of turnover members 100, each turnover member 100 corresponds to a non-bending portion 201, and the supporting members 102 are disposed at the gaps between adjacent turnover members 100, and each supporting member 102 corresponds to a bending portion 200.
In one embodiment, referring to fig. 3 and 4, fig. 3 is a schematic view illustrating an unfolded state structure of an embodiment of the folding mechanism of the present application, and fig. 4 is a schematic view illustrating a folded state structure of an embodiment of the folding mechanism of the present application.
Both flippers 100 are plate-like and the supports 102 are strip-like, although in other embodiments, the flippers 100 and the supports 102 can be other shapes.
The cross section of supporting groove 1020 is convex, and accessible supporting groove 1020 wraps up restriction boundary constraint to kink 200, comes to inject the form when kink 200 is folding, and kink 200 can be retrained into the circular arc shape when folding this moment, and the easy crease that produces of kink department when effectively avoiding kink 200 free folding has improved the roughness when expanding to the crease has been improved.
In other embodiments, the first surface 1021 of the supporting member 102 may not be provided with the supporting groove 1020, and may directly support the non-bending portion 201 through the first surface 1021 when the flexible screen 20 is bent, and may reduce the crease when the bending portion 200 is folded; the supporting member 102 may also be provided with a supporting groove 1020 having a cross section with other rounded shapes, so as to avoid bending at a smaller angle.
It will be appreciated that if the support 102 is not present, the folded portion 200 forms an oval shape resembling an egg when folded, and is subject to creasing after multiple folds. Referring to fig. 5, fig. 5 is a schematic structural diagram of a folded state of an embodiment of the flexible screen body according to the present application, at this time, due to the constraint effect of the supporting groove 1020, the folded state of the bending portion 200 is in an arc shape, so that the occurrence of a crease is effectively avoided.
As shown in fig. 3, the transmission mechanism 103 is symmetrically disposed at two ends of the support member 102 in the length direction and located between the two overturning members 100; in other embodiments, the transmission mechanism 103 may be disposed asymmetrically, that is, a transmission mechanism 103 is disposed between one end of the support member 102 and the side turning member 100, and a transmission mechanism 103 is disposed between the other end of the support member 102 and the other side turning member 100; alternatively, a transmission mechanism 103 is provided between only one end of the supporting member 102 and the side flipping member 100; alternatively, the transmission mechanism 103 is symmetrically arranged between only one end of the supporting member 102 and the two-sided turning member 100; of course, the transmission mechanism may be disposed at other positions of the support member 102, which can be sufficient to drive the support member 102 to move toward or away from the flexible screen 20 when the turnover member 100 is turned over.
In order to improve the connection stability between the turnover member 100 and the supporting member 102 and to realize the linkage between the turnover members 100 on both sides later, it is preferable that the transmission mechanism 103 is symmetrically disposed between both ends of the supporting member 102 in the length direction and the two turnover members 100.
Referring to fig. 6, 7, 8, 9 and 10, fig. 6 is a partially enlarged view of a in fig. 3, fig. 7 is a partially enlarged view of B in fig. 4, fig. 8 is a schematic structural view of an embodiment of the support of the present application, fig. 9 is a schematic structural view of an embodiment of the turnover member of the present application, and fig. 10 is a partially enlarged view of B in fig. 8.
The transmission 103 includes a first gear 1030, a second gear 1031, a rack 1032, and a connection 1033.
The second gear 1031 is fixed to the turnover member 100 through a fixing rod 1034, and the first gear 1030 is fixed to the second gear 1031 through a coaxial pin 1035, so that the turnover member 100 can rotate around the centers of the first gear 1030 and the second gear 1031 and drive the first gear 1030 and the second gear 1031 to rotate.
In order to enable the two flipping pieces 100 to move synchronously, two second gears 1031 corresponding to positions between the two flipping pieces 100 and the supporting piece 102 are arranged in a meshed manner, and hovering of the two flipping pieces 100 at any angle can be achieved by adjusting parameters of the second gears 1031. In other embodiments, two first gears 1030 corresponding to positions between the two flipping members 100 and the supporting member 102 may be disposed in engagement, or two first gears 1030 corresponding to positions between the two flipping members 100 and the supporting member 102 may be disposed in engagement with two second gears 1031.
The extension direction of the rack 1032 is parallel to the movement direction of the support 102, and both ends of the connection member 1033 are fixed to the rack 1032 and the support 102, respectively.
When the first gear 1030 rotates, the rack 1032 is driven to move along the moving direction of the support 102, so that the support 102 is driven to move toward or away from the flexible screen 20 by the connecting piece 1033.
Specifically, the transmission mechanism 103 further includes a cross bar 1036, and the racks 1032 located at positions between the two flipping members 100 and the supporting members 102 are connected by the cross bar 1036 to form a rack frame 1037. Two first gears 1030, which are correspondingly connected to the adjacent two flipping members 100, are disposed in the rack frame 1037, and are respectively engaged with one rack 1032. The top end of the connecting member 1033 is fixed to the bottom surface of the rack frame 1037, that is, to the bottom rail 1036, and the bottom end is fixed to the supporting member 102. When the two adjacent turning pieces 100 are switched from the unfolded posture to the folded posture, the rack frame 1037 synchronously drives the supporting pieces 102 to move towards the bending part of the flexible screen body 20; when the two adjacent turning pieces 100 are switched from the folded posture to the unfolded posture, the rack frame 1037 synchronously drives the supporting pieces 100 to move away from the bending portion of the flexible screen body 20.
Because the rack 1032 is located at the side of the first gear 1030 facing the turner 100, when the turner 100 is switched from the unfolded posture to the folded posture, the first gear 1030 is driven to rotate, so as to drive the rack frame 1037 to move towards the side of the flexible screen 20, and thus drive the supporting member 102 to move towards the flexible screen 20, so that the bending portion 200 is attached to and supported by the wall of the supporting groove 1020 in the folded posture;
when the turning piece 100 is switched from the folded posture to the unfolded posture, the rack frame 1037 is driven to move towards the side far away from the flexible screen body 20 by the first gear 1030, so as to drive the supporting piece 102 to move towards the direction far away from the flexible screen body 20, and a gap exists between the supporting piece 102 and the bending portion 200 in the unfolded posture, so that the unfolding of the flexible screen body 20 is prevented from being affected.
It will be appreciated that in the present embodiment, the second gear 1031 functions to rotate the first gear 1030 as the flipping member 100 is flipped, while achieving engagement of the first gear 1031 with the rack frame 1037. In other embodiments, the second gear 1031 may be omitted, and in order to fix the first gear 1030 to the turnover member 100 and engage with the rack frame 1037, the first gear 1030 may be partially embedded in the rack frame 1037, and a portion of the first gear 1030 is exposed and fixed between the rack frame 1037 and the turnover member 100 by a straight rod; the first gear 1030 may be completely inserted into the rack 1037, and the overturning member 100 may be connected to the first gear 1030 through an L-shaped link; meanwhile, in order to realize the interlocking of the two-side turning pieces 100, two first gears 1030 located in the same rack frame 1037 may be engaged.
In another embodiment, please refer to fig. 11 and 12, fig. 11 is a schematic view of an unfolding structure of another embodiment of the folding mechanism of the present application, and fig. 12 is a schematic view of a folding structure of another embodiment of the folding mechanism of the present application.
The transmission 103 includes a first gear 1030, a second gear 1031, a rack 1032, a connector 1033, and a mounting frame 1038.
Wherein the arrangement of the first gear 1030 and the second gear 1031 is the same as the above embodiment. The mounting frame 1038 is sleeved outside the two first gears 1030 correspondingly connected with the two adjacent turnover pieces 100. Specifically, the mounting frame 1038 is provided with a mounting hole corresponding to the central position of the first gear 1030, the mounting frame 1038 is mounted on the first gear 1030 by a connecting pin connected to the center of the first gear 1030 through the mounting hole, and at this time, the rotation of the first gear 1030 does not affect the mounting frame 1038.
A chute perpendicular to the movement direction of the supporting member 102 is provided on the inner bottom surface of the mounting frame 1038.
The extending direction of the rack 1032 is perpendicular to the moving direction of the support 102; the link 1033 is hinged to the rack 1032 at one end and to the support 102 at the other end. Specifically, the rack 1032 extends below the first gear 1030 in a direction perpendicular to the moving direction of the support 102, one end of the rack 1032 facing the support 102 is engaged with the first gear 1030, and one end far from the support is provided with a slider 1039 matching with the chute. The two ends of the connecting piece 1033 are respectively hinged with the sliding block 1039 and the supporting piece 102.
Two first gears 1030, which are correspondingly connected with the adjacent two overturning members 100, are disposed in the mounting frame 1038 and are correspondingly engaged with one rack 1032, respectively. When the two adjacent turning pieces 100 are switched from the unfolded posture to the folded posture, the two racks 1032 are away from each other to drive the supporting piece 102 to move toward the bending portion 200 of the flexible screen body 20; when the two adjacent turning pieces 100 are switched from the folded posture to the unfolded posture, the two racks 1032 approach each other to drive the supporting piece 102 to move away from the bending portion 200 of the flexible screen 20.
Specifically, when the turning member 100 is switched from the unfolded posture to the folded posture, the first gear 1030 is driven to rotate, so as to drive the two racks 1032 to move away from each other, i.e. the first gear 1030 drives the racks 1032 and the sliding block 1039 to move along the sliding groove to move the connecting member 1033, and the two connecting members 1033 between the supporting member 102 and the two turning members 100 synchronously move to drive the supporting member 102 to move upward, i.e. the supporting member 102 moves towards the bending portion 200 of the flexible screen 20, so that the bending portion 200 is fully attached to the wall of the supporting groove 1020.
When the turning piece 100 is switched from the folded posture to the unfolded posture, the first gear 1030 is driven to rotate, so as to drive the two racks 1032 to approach each other, that is, the first gear 1030 drives the racks 1032 and the sliding block 1039 to move inwards along the sliding groove, so as to drive the connecting piece 1033 to reset, that is, drive the supporting piece 102 to move towards the direction away from the bending portion 200 of the flexible screen 20.
It can be appreciated that, in this embodiment, in order to ensure the installation of the installation frame 1038, two transmission mechanisms 103 corresponding to positions must be disposed between the support member 102 and the two turning members 100, so as to provide two installation points for the installation frame 1038, and at the same time, two connection members 1033 of the two transmission mechanisms 103 can cooperate to move to drive the support member 102 toward or away from the flexible screen 20.
In the present embodiment, the second gear 1031 functions to rotate the first gear 1030 as the flip 100 is flipped, while achieving engagement of the first gear 1031 with the rack 1032 embedded in the mounting frame 1038. In other embodiments, the second gear 1031 may be omitted, and in order to achieve the fixing of the first gear 1030 and the turnover member 100 and the engagement with the rack 1032, the first gear 1030 may be partially embedded in the mounting frame 1038, and a portion of the first gear 1030 exposed out of the mounting frame 1038 is fixed with the turnover member 100 by a straight rod; the first gear 1030 may be completely inserted into the mounting frame 1038, and the flip 100 may be connected to the first gear 1030 by an L-shaped link.
The foregoing embodiments of the present application are not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.
Claims (16)
1. A folding mechanism for setting up at the back of flexible screen body, characterized in that includes:
the overturning parts are arranged at intervals to form a gap, the overturning parts are provided with supporting surfaces for supporting the flexible parts, the overturning parts can overturn around the gap, so that a flattening posture and a folding posture are arranged between the two adjacent overturning parts, and when the two adjacent overturning parts are switched from the flattening posture to the folding posture, the supporting surfaces of the two adjacent overturning parts gradually tend to be arranged oppositely;
the supporting piece is arranged at the position corresponding to the gap; the support has opposed first and second surfaces; when the two adjacent turnover pieces are in a flattened posture, the first surface and the supporting surface face the same direction, and the second surface and the supporting surface face opposite directions;
the transmission mechanism is arranged at the gap, one end of the transmission mechanism is connected with the turnover piece, the other end of the transmission mechanism is connected with the support piece, and the transmission mechanism is used for driving the support piece to move when the turnover piece turns over;
wherein when two adjacent turning pieces are switched from the flattened posture to the folded posture, the transmission mechanism drives the supporting pieces to move along the direction from the second surface to the first surface; when two adjacent turnover pieces are switched from the folded posture to the flattened posture, the transmission mechanism drives the support piece to move along the direction from the first surface to the second surface.
2. The folding mechanism of claim 1, wherein the transmission mechanism comprises a first gear fixedly connected to the flip member, the flip member being rotatably disposed about a central axis of the first gear.
3. Folding mechanism according to claim 2, characterized in that the two first gears which are correspondingly connected with the two adjacent turnover pieces are meshed with each other, and/or the second gears which are correspondingly connected with the two adjacent turnover pieces are fixed on the first gears through coaxial pins and meshed with each other.
4. A folding mechanism according to claim 3, wherein the transmission mechanism further comprises:
the rack is meshed with the first gear, so that the first gear drives the rack to move along the extending direction when rotating;
and one end of the connecting piece is connected with the rack, and the other end of the connecting piece is connected with the supporting piece, so that the supporting piece is driven to move when the rack moves.
5. The folding mechanism of claim 4, wherein the rack extends in a direction parallel to the direction of movement of the support member, and wherein the connector is fixedly connected to the rack at one end and fixedly connected to the support member at the other end.
6. The folding mechanism of claim 5, wherein the transmission mechanism further comprises a cross bar; the two racks are connected through the cross rod to form a rack frame, and the two first gears correspondingly connected with the two adjacent turnover pieces are arranged in the rack frame and are respectively correspondingly meshed with one rack; when two adjacent turnover pieces are switched from the flattening posture to the folding posture, the rack frames synchronously drive the supporting pieces to move along the direction from the second surface to the first surface; when two adjacent turnover pieces are switched from the folding posture to the flattening posture, the rack frames synchronously drive the supporting pieces to move along the direction from the first surface to the second surface.
7. The folding mechanism of claim 6, wherein the top end of the connecting member is fixed to the bottom surface of the rack frame and the bottom end is fixed to the supporting member.
8. The folding mechanism of claim 4, wherein the rack extends in a direction perpendicular to the direction of movement of the support; one end of the connecting piece is hinged with the rack, and the other end of the connecting piece is hinged with the supporting piece.
9. The folding mechanism of claim 8, wherein the rack has a slider at one end, and the connector has one end hinged to the slider and the other end hinged to the support.
10. The folding mechanism of claim 9, wherein the transmission mechanism further comprises a mounting frame, the two racks being disposed within the mounting frame; two first gears correspondingly connected with two adjacent turnover pieces are arranged in the mounting frame and are respectively correspondingly meshed with one rack; when two adjacent turnover pieces are switched from the flattening posture to the folding posture, the two racks are far away from each other so as to drive the support piece to move along the direction from the second surface to the first surface; when the two adjacent turnover pieces are switched from the folded posture to the flattened posture, the two racks are close to each other to drive the support piece to move along the direction from the first surface to the second surface.
11. The folding mechanism according to claim 10, wherein a slide groove which is matched with the slide block and extends along the extending direction of the rack is formed in the inner bottom surface of the mounting frame, and the slide block is arranged along the slide groove in a sliding manner.
12. The folding mechanism according to claim 1, wherein two of the transmission mechanisms are respectively provided at both ends of the supporting member in the gap center axis direction and between two adjacent ones of the turning members.
13. The folding mechanism according to any one of claims 1 to 12, wherein a support groove is provided in a surface of the support member facing the flexible member, the support groove being provided to extend in a central axis direction of the gap.
14. The folding mechanism of claim 13, wherein the support slot is circular in cross-section.
15. The folding mechanism of claim 13, wherein the flip member is a plate and the support member is a bar-shaped plate.
16. A flexible display panel, comprising:
a folding mechanism as claimed in any one of claims 1 to 15; and
the support piece and the turnover piece are positioned on the same side of the flexible screen body; the flexible screen body includes:
the bending part is arranged at the position corresponding to the gap;
the non-bending parts are arranged on two sides of the bending part, and each side of the non-bending parts are attached to the supporting surface of the turnover piece on the same side;
when the folding posture is switched to the flattening posture, the folding posture is driven to be folded by the two overturning plates, the supporting piece moves towards the direction of the folding part so that the folding part is attached to and supported on the first surface, when the folding posture is switched to the flattening posture by the pair of overturning plates, the folding part is driven to be flattened, and the supporting piece moves towards the direction away from the folding part so that the folding part and the supporting piece are arranged at intervals.
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| CN115083284A (en) | 2022-09-20 |
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