CN112160978A - Inward folding mechanism and display device - Google Patents
Inward folding mechanism and display device Download PDFInfo
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- CN112160978A CN112160978A CN202010980718.7A CN202010980718A CN112160978A CN 112160978 A CN112160978 A CN 112160978A CN 202010980718 A CN202010980718 A CN 202010980718A CN 112160978 A CN112160978 A CN 112160978A
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- rotating shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/12—Pivotal connections incorporating flexible connections, e.g. leaf springs
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Telephone Set Structure (AREA)
Abstract
The application discloses an inward folding mechanism and a display device, wherein the display device comprises the inward folding mechanism, the inward folding mechanism comprises a rotating shaft casing, a first rotating shaft, a second rotating shaft, a first casing, a second casing and at least one sliding device; the back infolding mechanism of buckling forms "wedge", makes the district of buckling can give way the space and hold "unnecessary" flexible display screen, has the supporting role to the flexible display screen of district of buckling after the exhibition is flat, and infolding mechanism is buckling the in-process left and right side first casing reaches the second casing has the linkage relation, remains the symmetric state throughout, has reduced infolding mechanism to the damage of flexible display screen. And the inward folding mechanism occupies a small volume, so that the problem of overhigh bulging of a bending area is solved, and the user experience is improved.
Description
Technical Field
The invention relates to the field of display, in particular to an inward folding mechanism and a display device.
Background
The foldable display device is one of the hot spots of future electronic products, the foldable display device has become a great development direction of the display industry at present, and the mismatch between the size of the mechanism surface before and after the foldable display device is folded and the size of the flexible display screen 20 is a great problem that needs to be solved urgently in the foldable display device at present, wherein the inner folding display mechanism usually needs to make a space for accommodating the flexible display screen 20 which is "extra" relative to the mechanism after the mechanism is bent through the mechanism design.
The display screen is pulled in the bending process, so that the phenomena of display device fracture, luminous layer peeling and the like are easy to occur, and the failure is caused. In order to solve the above problems, in addition to enhancing the bending performance of the module material, reducing the pulling of the mechanism to the display screen is also one of important research directions, and the requirement can be satisfied by adopting a Stress free motion trajectory.
The main principle of the stress-free motion trail is to ensure that the mechanisms at the two ends of the display screen are symmetrical and the length of the bending area is kept unchanged in the motion process. But present collapsible display device needs a plurality of track mechanisms to realize buckling when realizing buckling, causes to occupy that there is the arch when bulky and display screen expand to planar structure, leads to the problem of whole surface unevenness.
Disclosure of Invention
The invention aims to provide an inward folding mechanism and a display device, and solves the technical problems that when the existing foldable display device is bent, a plurality of track inward folding mechanisms are needed to realize bending, the occupied volume is overlarge, and when a display screen is unfolded to be in a planar structure, the whole surface is not flat.
In order to solve the above problems, the present invention provides an inward folding mechanism, which includes a rotating shaft housing, a first rotating shaft, a second rotating shaft, a first housing, a second housing, and at least one sliding device; specifically, the rotating shaft shell is horizontally arranged, and the cross section of the rotating shaft shell is of an axisymmetric structure arranged along a longitudinal symmetry axis in a mirror image manner; the first rotating shaft is arranged on the first side of the longitudinal symmetric axis of the rotating shaft shell; the second rotating shaft is arranged on a second side, opposite to the first side, of the longitudinal symmetry axis of the rotating shaft shell and arranged in a mirror image manner with the first rotating shaft relative to the longitudinal symmetry axis; the first shell is arranged on the first side of the longitudinal symmetry axis of the rotating shaft shell and can be rotatably connected along the first rotating shaft; the second shell is arranged on a second side, opposite to the first side, of the longitudinal symmetry axis of the rotating shaft shell and is rotatably connected along the second rotating shaft; the at least one sliding device is arranged at the longitudinal symmetrical axis position of the rotating shaft shell and is respectively connected with the first shell and the first shell; when the sliding device is closed, the first shell and the second shell are unfolded on the same plane, and the inward folding mechanism is in a first state; when the sliding device is opened, the first shell and the second shell are folded in half and overlapped, and the inward folding mechanism is in a second state.
Further, the sliding device comprises a gear, a first rack and a second rack; the gear is horizontally arranged at the longitudinal symmetrical axis position of the rotating shaft shell and is rotatably connected with the rotating shaft shell; the first rack is meshed with the gear and is connected with the rotating shaft shell in a sliding way along a sliding groove of the rotating shaft shell; the first side end part of the first rack is hinged with the end part of the first shell; the second rack is meshed with the gear and is connected with the rotating shaft shell in a sliding way along a sliding groove of the rotating shaft shell; a second side end part of the second rack opposite to the first side is hinged with the end part of the second machine shell; when the inward folding mechanism is in a first state, the first rack and the second rack are arranged oppositely; when the inward folding mechanism is in a second state, the first rack and the second rack are far away from each other; from a first state to a second state, the first rack and the second rack move oppositely; from the second state to the first state, the first rack and the second rack move towards each other.
Further, a first sliding groove is formed in the end portion of the first side of the first rack, and the first sliding groove is U-shaped; a first sliding block is arranged on the upper surface of the end part of the first shell in an extending mode, the first sliding block is accommodated in a groove of the first sliding groove, a first accommodating hole is formed in the middle of the first sliding block, one end of the first sliding groove can penetrate through the first accommodating hole when the first sliding groove is folded, and the other end of the first sliding groove is abutted and slides against the first sliding block; a second sliding groove is formed in the end part, opposite to the first side, of the second side of the second rack, and the second sliding groove is U-shaped; the upper surface of the end part of the second shell extends to form a second sliding block, the second sliding block is accommodated in the groove of the second sliding groove, a second accommodating hole is formed in the middle of the second sliding block, one end of the second sliding groove can penetrate through the second accommodating hole when being folded, and the other end of the second sliding groove is abutted and slid with the second sliding block.
Furthermore, the bottom edge of the cross section of the rotating shaft casing is in a sector shape or an arc shape.
Furthermore, a first through hole is formed in the position, corresponding to the first rotating shaft, of the rotating shaft shell, and the first rotating shaft penetrates through the first through hole and is connected with the first shell; the rotating shaft shell is provided with a second through hole at a position corresponding to the second rotating shaft, and the second rotating shaft penetrates through the second through hole to be connected with the second shell; the first shell is provided with a third through hole at a position corresponding to the first rotating shaft, and the first rotating shaft penetrates through the third through hole to be connected with the rotating shaft shell; and a fourth through hole is formed in the position, corresponding to the second rotating shaft, of the second machine shell, and the second rotating shaft penetrates through the fourth through hole to be connected with the rotating shaft machine shell.
Further, the first housing and the second housing have the same length in the lateral direction.
Further, the distance between the first rotating shaft and the upper surface of the rotating shaft casing is smaller than the distance between the first rotating shaft and the lower surface of the rotating shaft casing; the distance between the second rotating shaft and the upper surface of the rotating shaft casing is smaller than the distance between the second rotating shaft and the lower surface of the rotating shaft casing.
Further, the distance between the first rotating shaft and the longitudinal symmetry axis of the rotating shaft casing is X, the distance between the first rotating shaft and the upper surface of the rotating shaft casing is Y, and 1mm < X-Y <5 mm.
The invention also provides a display device which comprises the inward folding mechanism.
Furthermore, the display device further comprises a flexible display screen, the flexible display screen is arranged on the inner side surface of the inward folding mechanism, and two ends of the flexible display screen are respectively connected with the first casing and the second casing.
The invention has the beneficial effects that the inward folding mechanism is an inward folding display inward folding mechanism carrying a flexible display screen, the inward folding mechanism forms a wedge shape after being bent, so that a bending area can make room for accommodating redundant flexible display screens, the flexible display screens in the bending area can be supported after being unfolded, the first shell and the second shell on the second side, which is opposite to the first side at the left side, of the inward folding mechanism are in linkage relation in the bending process, the first shell and the second shell are always kept in a symmetrical state, and the damage of the inward folding mechanism to the flexible display screens is reduced. And the inward folding mechanism occupies a small volume, so that the whole surface of the flexible display screen is of a smooth structure when the flexible display screen is unfolded into a plane structure, the problem of overhigh bulging of a bending area is avoided, and the user experience is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a display device in a flattened state according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the display device in a 90-degree bent state according to the embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the display device in a fully bent state according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of the display device in a flattened state according to the embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view illustrating a display device in a 90-degree bent state according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional structure diagram of the display device in the fully bent state according to the embodiment of the present invention.
The components in the figure are identified as follows:
10. an inward folding mechanism 11, a rotating shaft casing 12, a first casing 13, a second casing,
20. a flexible display screen 21, a first rotating shaft 22, a second rotating shaft,
30. a sliding device 31, a gear 32, a first rack 33, a second rack,
41. a first slider 42, a second slider 100, a display device,
111. a rack sliding groove 321, a first sliding groove 331, a second sliding groove,
411. a first containing hole 421 and a second containing hole.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the drawings, the thickness of layers and regions are exaggerated for clarity. For example, the thicknesses and sizes of elements in the drawings are arbitrarily shown for convenience of description, and thus, the described technical scope is not limited by the drawings. The drawings of the present invention are only for illustrating the relative positional relationship and the connection relationship, the layer thicknesses of some parts are exaggerated in a drawing manner for easy understanding, and the layer thicknesses in the drawings do not represent the proportional relationship of the actual layer thicknesses.
As shown in fig. 1, 2 and 3, in one embodiment of the present invention, a display device 100 is provided, which includes a folding mechanism 10 and a flexible display 20 disposed on an inner surface of the folding mechanism 10. The display device 100 may be: any product or component with a display function, such as wearable equipment, a mobile phone, a tablet computer, a television, a display, a notebook computer, an electronic book, electronic newspaper, a digital photo frame, a navigator and the like. The wearable device comprises a smart bracelet, a smart watch, a VR (Virtual Reality) and other devices. As shown in fig. 1, fig. 2, and fig. 3, the display device 100 is illustrated in a flattened state, a bent state of 90 degrees, and a completely bent state.
As shown in fig. 4, fig. 5, and fig. 6, schematic cross-sectional structures of the display device 100 in a flattened state, a 90-degree bent state, and a fully bent state are respectively shown. The folding-in mechanism 10 includes a rotating shaft housing 11, a first housing 12, a second housing 13, a first rotating shaft 21 and a second rotating shaft 222; specifically, the rotating shaft casing 11 is horizontally arranged, and the cross section of the rotating shaft casing is of an axisymmetric structure arranged along a longitudinal symmetry axis in a mirror image manner; the first rotating shaft 21 is arranged on a first side of a longitudinal symmetry axis of the rotating shaft casing 11, and the first side is the left side in the figure; the second rotating shaft 22 is disposed on a second side of the longitudinal symmetry axis of the rotating shaft housing 11 opposite to the first side, and is disposed in a mirror image with the first rotating shaft 21 relative to the longitudinal symmetry axis, and the second side is the right side in the figure; the first housing 12 is arranged on the left side of the longitudinal symmetry axis of the rotating shaft housing 11 and is rotatably connected along the first rotating shaft 21; the second housing 13 is disposed on the right side of the longitudinal symmetry axis of the rotating shaft housing 11 and rotatably connected along the second rotating shaft 22.
The flexible display screen 20 is disposed on the inner side surface of the folding mechanism 10, and two ends of the flexible display screen are respectively connected to the first housing 12 and the second housing 13.
As shown in fig. 1, fig. 2, and fig. 3, there are schematic structural diagrams of the invagination mechanism 10 in a flat state, a 90-degree bent state, and a fully bent state, respectively, where the flat state is referred to as a first state, and the fully bent state is referred to as a second state. As can be seen from the figure, after the folding mechanism 10 is folded, the first housing 12 and the second housing 13 form a wedge shape, and a space is left for the flexible display screen 20 in the folding region, so that the flexible display screen can form an arc-like shape in the folding region, and a size difference between the folded flexible display screen 20 and the folding mechanism 10 is compensated. That is, the bottom side of the cross section of the rotating shaft housing 11 is fan-shaped or arc-shaped.
In this embodiment, the rotating shaft housing 11 is provided with a first through hole at a position corresponding to the first rotating shaft 21, and the first rotating shaft 21 passes through the first through hole and is connected to the first housing 12; and/or, a second through hole is formed in the position, corresponding to the second rotating shaft 22, of the rotating shaft housing 11, and the second rotating shaft 22 penetrates through the second through hole to be connected with the second housing 13; and/or a third through hole is formed in the first housing 12 at a position corresponding to the first rotating shaft 21, and the first rotating shaft 21 penetrates through the third through hole to be connected with the rotating shaft housing 11; and/or a fourth through hole is formed in the position, corresponding to the second rotating shaft 22, of the second machine shell 13, and the second rotating shaft 22 penetrates through the fourth through hole to be connected with the rotating shaft machine shell 11.
In this embodiment, at least one sliding device 30 is disposed at a longitudinal symmetry axis position of the rotating shaft housing 11, and each sliding device 30 includes a gear 31, a first rack 32 and a second rack 33; the gear 31 is horizontally arranged at the longitudinal symmetrical axis position of the rotating shaft casing 11 and is rotatably connected with the rotating shaft casing 11; the first rack 32 is engaged with the gear 31 and is slidably connected along a rack sliding groove 111 of the rotating shaft housing 11; the left end of the first rack 32 is hinged with the end of the first housing 12; the second rack 33 is engaged with the gear 31 and is connected to the sliding groove of the rotating shaft housing 11 in a sliding manner; the right end of the second rack 33 is hinged to the end of the second housing 13.
When the sliding device 30 is closed, the first housing 11 and the second housing 12 are unfolded on the same plane, and the fold-in mechanism 10 is in a first state; when the sliding device 30 is opened, the first housing 11 and the second housing 12 are folded in half and overlapped, and the inward folding mechanism 10 is in a second state. When the folding-in mechanism 10 is in the first state, the first rack 32 is opposite to the second rack 33; when the folding-in mechanism 10 is in the second state, the first rack 32 and the second rack 33 are away from each other; from the first state to the second state, the first rack 32 and the second rack 33 move along the gear 31 in an opposite manner; from the second state to the first state, the first rack 32 and the second rack 33 move toward each other along the gear 31.
In this embodiment, a first sliding groove 321 is disposed at a left end of the first rack 32, and the first sliding groove 321 is U-shaped; a first sliding block 41 is extended from the upper surface of the end of the first housing 12, the first sliding block 41 is accommodated in the groove of the first sliding groove 321, a first accommodating hole 411 is formed in the middle of the first sliding block 41, one end of the first sliding groove 321 can pass through the first accommodating hole 411 when being folded, and the other end of the first sliding groove 321 abuts against the first sliding block 41 to slide; a second sliding groove 331 is formed in the right end of the second rack 33, and the second sliding groove 331 is U-shaped; a second sliding block 42 is extended from the upper surface of the end of the second housing 13, the second sliding block 42 is accommodated in the second sliding groove 331, a second accommodating hole 421 is formed in the middle of the second sliding block 42, one end of the second sliding groove 331 can pass through the second accommodating hole 421 when being folded, and the other end of the second sliding groove 331 abuts against the second sliding block 42 to slide.
Fig. 4 mainly shows a cross-sectional view of the bending region in the unfolded state of the fold-in mechanism 10, where the first housing 12 and the second housing 13 are unfolded on the same plane, and the fold-in mechanism 10 is in the first state; the first housing 12 and the second housing 13 are respectively provided with the first rotating shaft 21 and the second rotating shaft 22 which rotate relative to the rotating shaft housing 11, so that the first housing 12 and the second housing 13 can rotate relative to the rotating shaft housing 11 to complete the integral folding action of the folding mechanism 10. The first housing 12 and the second housing 13 have a sliding block structure, and the first sliding block 41 and the second sliding block 42 can form a sliding connection with the first sliding slot 321 and the second sliding slot 331 on the first rack 32 and the second rack 33, so that the first sliding block 41 and the second sliding block 42 on the first housing 12 and the second housing 13 can slide up and down relative to the first sliding slot 321 and the second sliding slot 331 on the first rack 32 and the second rack 33. The bottoms of the first rack 32 and the second rack 33 and the rack sliding groove 111 on the rotating shaft housing 11 form a sliding connection relationship, so that the first rack 32 and the second rack 33 can relatively slide along the rack sliding groove 111 on the rotating shaft housing 11. A gear 31 is arranged between the first rack 32 and the second rack 33, the gear 31 can rotate relative to the rotating shaft casing 11, and the first rack 32 and the second rack 33 are in meshed connection with the gear 31. The modulus, pressure angle, etc. of the first rack 32 and the second rack 33 are the same.
As shown in fig. 5, when the housing 1 rotates clockwise by 45 degrees relative to the rotating shaft housing 11 through the first rotating shaft 21, the first slider 41 on the housing 1 pushes the first rack 32 to slide leftward along the sliding slot on the rotating shaft housing 11, so as to drive the gear 31 to start rotating. The rotation of the gear 31 will drive the second rack 33 to slide rightward relative to the sliding slot on the rotating shaft housing 11, the second rack 33 will drive the second slider 42 on the second housing 13 to move rightward relative to the sliding slot, and in combination with the limitation of the sliding slot structure on the second rack 33 to the slider position, the second housing 13 will also rotate 45 degrees counterclockwise relative to the folding mechanism 10, so that the folding mechanism 10 will form a symmetrical relationship, and the screen is prevented from being bent into an asymmetrical shape to generate a large stress when the first housing 12 on one side of the folding mechanism 10 rotates and the second housing 13 on the other side does not rotate at the same angle. The housing 1 continues to rotate through the first rotating shaft 21, the second housing 13 rotates through the second rotating shaft 22 by the same angle until the tail parts of the first housing 12 and the second housing 13 are close to each other, and the bending area gives up space to make the flexible display screen 20 form an arc shape similar to a smooth shape, as shown in fig. 6.
In this embodiment, the lengths of the first housing 12 and the second housing 13 in the transverse direction are equal. In this way, it can be ensured that the folding-in mechanisms 10 at the two ends of the flexible display screen 20 are symmetrical and the length of the bending region remains unchanged during the movement, that is, in the process of turning over the flexible display screen 20 of the display device 100 in fig. 5 and in the completely bent state in fig. 6, the flexible display screen is symmetrically folded left and right, the first housing 12 and the second housing 13 are folded and overlapped after the display device 100 is bent, and the folding-in mechanisms 10 are in the second state.
In this embodiment, the distance between the first rotating shaft 21 and the upper surface of the rotating shaft housing 11 is smaller than the distance between the first rotating shaft 21 and the lower surface of the rotating shaft housing 11; the distance between the second rotating shaft 22 and the upper surface of the rotating shaft casing 11 is smaller than the distance between the second rotating shaft 22 and the lower surface of the rotating shaft casing 11.
In this embodiment, it is assumed that a distance between the first rotating shaft 21 and the longitudinal symmetry axis of the rotating shaft housing 11 is X, a distance between the first rotating shaft 21 and the upper surface of the rotating shaft housing 11 is Y, and 1mm < X-Y <5 mm. Specifically, a schematic position diagram of the first housing 12, the second housing 13, the first rotating shaft 21, and the second rotating shaft 22 is shown in fig. 4, and since an excessive curvature will cause a large stress on the flexible display screen 20 and affect the service life of the flexible display screen, it is necessary to ensure that the curvature of the arc-like shape formed by the flexible display screen 20 in the bending region after the first housing 12 and the second housing 13 rotate completely is not excessive, and therefore, by calculating a geometric relationship, only a difference between a distance x from the first rotating shaft 21 and the second rotating shaft 22 to a longitudinal symmetric axis and a distance from the first rotating shaft 21 and the second rotating shaft 22 to a screen-attaching surface is limited to be greater than 1mm, that is, x-y >1 mm; and too large x-y will cause the bending area of the invagination mechanism 10 to be too high after being bent, which affects the user experience, so that x-y is limited to be less than 5 mm.
The invention has the beneficial effects that the inward folding mechanism is an inward folding display inward folding mechanism carrying a flexible display screen, the inward folding mechanism forms a wedge shape after being bent, so that a bending area can make room for accommodating redundant flexible display screens, the flexible display screens in the bending area can be supported after being unfolded, the first shell and the second shell on the left and right sides of the inward folding mechanism are in linkage relation in the bending process, the symmetrical state is always kept, and the damage of the inward folding mechanism to the flexible display screens is reduced. And the inward folding mechanism occupies a small volume, so that the whole surface of the flexible display screen is of a smooth structure when the flexible display screen is unfolded into a plane structure, the problem of overhigh bulging of a bending area is avoided, and the user experience is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An invagination mechanism, comprising:
the rotating shaft shell is horizontally arranged, and the cross section of the rotating shaft shell is of an axisymmetric structure arranged along a longitudinal symmetric axis in a mirror image manner;
the first rotating shaft is arranged on the first side of the longitudinal symmetric axis of the rotating shaft shell;
the second rotating shaft is arranged on a second side, opposite to the first side, of the longitudinal symmetry axis of the rotating shaft shell and is arranged in a mirror image mode relative to the longitudinal symmetry axis with the first rotating shaft;
the first shell is arranged on the first side of the longitudinal symmetric axis of the rotating shaft shell and can be rotatably connected along the first rotating shaft;
the second shell is arranged on a second side, opposite to the first side, of the longitudinal symmetry axis of the rotating shaft shell and is rotatably connected along the second rotating shaft; and
the sliding device is arranged at the longitudinal symmetry axis position of the rotating shaft shell and is respectively connected with the first shell and the first shell;
when the sliding device is closed, the first shell and the second shell are unfolded on the same plane, and the inward folding mechanism is in a first state; when the sliding device is opened, the first shell and the second shell are folded in half and overlapped, and the inward folding mechanism is in a second state.
2. The invagination mechanism of claim 1, wherein the sliding device comprises:
the gear is horizontally arranged at the longitudinal symmetrical axis position of the rotating shaft shell and is rotatably connected with the rotating shaft shell;
the first rack is meshed with the gear and is connected with the rotating shaft shell in a sliding way along a sliding chute of the rotating shaft shell; the first side end part of the first rack is hinged with the end part of the first shell; and
the second rack is meshed with the gear and is connected with the rotating shaft shell in a sliding way along a sliding groove of the rotating shaft shell; a second side end part of the second rack opposite to the first side is hinged with the end part of the second machine shell;
when the inward folding mechanism is in a first state, the first rack and the second rack are arranged oppositely; when the inward folding mechanism is in a second state, the first rack and the second rack are far away from each other; from a first state to a second state, the first rack and the second rack move oppositely; from the second state to the first state, the first rack and the second rack move towards each other.
3. The invagination mechanism of claim 2,
a first sliding groove is formed in the end portion of the first side of the first rack, and the first sliding groove is U-shaped;
a first sliding block is arranged on the upper surface of the end part of the first shell in an extending mode, the first sliding block is accommodated in a groove of the first sliding groove, a first accommodating hole is formed in the middle of the first sliding block, one end of the first sliding groove can penetrate through the first accommodating hole when the first sliding groove is folded, and the other end of the first sliding groove is abutted and slides against the first sliding block;
a second sliding groove is formed in the end part, opposite to the first side, of the second side of the second rack, and the second sliding groove is U-shaped;
the upper surface of the end part of the second shell extends to form a second sliding block, the second sliding block is accommodated in the groove of the second sliding groove, a second accommodating hole is formed in the middle of the second sliding block, one end of the second sliding groove can penetrate through the second accommodating hole when being folded, and the other end of the second sliding groove is abutted and slid with the second sliding block.
4. The fold-in mechanism of claim 1, wherein the bottom edge of the cross section of the rotating shaft casing is fan-shaped or arc-shaped.
5. The invagination mechanism of claim 1,
the rotating shaft shell is provided with a first through hole at a position corresponding to the first rotating shaft, and the first rotating shaft penetrates through the first through hole and is connected with the first shell;
the rotating shaft shell is provided with a second through hole at a position corresponding to the second rotating shaft, and the second rotating shaft penetrates through the second through hole to be connected with the second shell;
the first shell is provided with a third through hole at a position corresponding to the first rotating shaft, and the first rotating shaft penetrates through the third through hole to be connected with the rotating shaft shell;
and a fourth through hole is formed in the position, corresponding to the second rotating shaft, of the second machine shell, and the second rotating shaft penetrates through the fourth through hole to be connected with the rotating shaft machine shell.
6. The fold-in mechanism of claim 1, wherein the first housing and the second housing are equal in length in the transverse direction.
7. The fold-in mechanism of claim 1, wherein the first shaft is spaced from the upper surface of the shaft housing by a distance less than the distance between the first shaft and the lower surface of the shaft housing; the distance between the second rotating shaft and the upper surface of the rotating shaft casing is smaller than the distance between the second rotating shaft and the lower surface of the rotating shaft casing.
8. The fold-in mechanism of claim 1, wherein the distance between the first rotating shaft and the longitudinal symmetry axis of the rotating shaft housing is X, the distance between the first rotating shaft and the upper surface of the rotating shaft housing is Y, and 1mm < X-Y <5 mm.
9. A display device comprising the invagination mechanism of any one of claims 1-8.
10. The display device according to claim 9, further comprising:
and the flexible display screen is arranged on the inner side surface of the inward folding mechanism, and two ends of the flexible display screen are respectively connected with the first shell and the second shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980718.7A CN112160978A (en) | 2020-09-17 | 2020-09-17 | Inward folding mechanism and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335194A (en) * | 2021-07-05 | 2021-09-03 | 恒大新能源汽车投资控股集团有限公司 | Intelligent cabin with folding screen and vehicle |
| CN113539113A (en) * | 2021-07-30 | 2021-10-22 | 上海天马微电子有限公司 | Display device |
| CN115394190A (en) * | 2022-08-16 | 2022-11-25 | 武汉华星光电半导体显示技术有限公司 | Display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017195273A1 (en) * | 2016-05-10 | 2017-11-16 | 富士通株式会社 | Hinge and electronic device |
| US10154124B2 (en) * | 2012-08-07 | 2018-12-11 | Samsung Electronics Co., Ltd. | Display system with a flexible display |
| CN111049954A (en) * | 2019-12-18 | 2020-04-21 | Oppo广东移动通信有限公司 | Folding device and electronic equipment |
| CN111105712A (en) * | 2019-12-19 | 2020-05-05 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN210670182U (en) * | 2020-02-27 | 2020-06-02 | Oppo广东移动通信有限公司 | Folding device and electronic equipment |
| CN111336174A (en) * | 2020-04-15 | 2020-06-26 | 东莞市劲丰电子有限公司 | Inward-bending type inward-folding rotating mechanism |
| CN111506165A (en) * | 2020-06-08 | 2020-08-07 | 东莞市劲丰电子有限公司 | Double-rail inward-folding rotating mechanism applied to large-size flexible screen |
-
2020
- 2020-09-17 CN CN202010980718.7A patent/CN112160978A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10154124B2 (en) * | 2012-08-07 | 2018-12-11 | Samsung Electronics Co., Ltd. | Display system with a flexible display |
| WO2017195273A1 (en) * | 2016-05-10 | 2017-11-16 | 富士通株式会社 | Hinge and electronic device |
| CN111049954A (en) * | 2019-12-18 | 2020-04-21 | Oppo广东移动通信有限公司 | Folding device and electronic equipment |
| CN111105712A (en) * | 2019-12-19 | 2020-05-05 | 武汉华星光电半导体显示技术有限公司 | Display device |
| CN210670182U (en) * | 2020-02-27 | 2020-06-02 | Oppo广东移动通信有限公司 | Folding device and electronic equipment |
| CN111336174A (en) * | 2020-04-15 | 2020-06-26 | 东莞市劲丰电子有限公司 | Inward-bending type inward-folding rotating mechanism |
| CN111506165A (en) * | 2020-06-08 | 2020-08-07 | 东莞市劲丰电子有限公司 | Double-rail inward-folding rotating mechanism applied to large-size flexible screen |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335194A (en) * | 2021-07-05 | 2021-09-03 | 恒大新能源汽车投资控股集团有限公司 | Intelligent cabin with folding screen and vehicle |
| CN113539113A (en) * | 2021-07-30 | 2021-10-22 | 上海天马微电子有限公司 | Display device |
| CN115394190A (en) * | 2022-08-16 | 2022-11-25 | 武汉华星光电半导体显示技术有限公司 | Display device |
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