CN114694488A - Flexible screen telescopic structure and flexible display device - Google Patents
Flexible screen telescopic structure and flexible display device Download PDFInfo
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- CN114694488A CN114694488A CN202011602017.6A CN202011602017A CN114694488A CN 114694488 A CN114694488 A CN 114694488A CN 202011602017 A CN202011602017 A CN 202011602017A CN 114694488 A CN114694488 A CN 114694488A
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- 230000007246 mechanism Effects 0.000 claims abstract description 141
- 230000000712 assembly Effects 0.000 claims description 7
- 238000000429 assembly Methods 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects 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
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
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Abstract
The application relates to the technical field of display devices, and provides a flexible screen telescopic structure and a flexible display device. The flexible telescopic device comprises: a support; the two reels are respectively positioned on two opposite sides of the bracket and are respectively connected with two ends of the flexible screen; the V-shaped link mechanisms are respectively positioned on two opposite sides of the bracket, one end of each V-shaped link mechanism is connected to the bracket, and the other end of each V-shaped link mechanism is connected to the corresponding reel; and the driving mechanism is respectively connected with each V-shaped link mechanism so as to respectively drive each V-shaped link mechanism to contract or extend. The flexible display device is convenient to carry, and extension and rolling are steady, can extend the size according to user's hobby adjustment, can also carry out the rolling along the horizontal direction when not watching for area is little after the rolling for this flexible display device.
Description
Technical Field
The application belongs to the technical field of display devices, and particularly relates to a flexible screen telescopic structure and a flexible display device.
Background
With the development of flexible display screen technology, flexible display devices have come into play. The flexible display device has the following advantages: 1. the volume is small after rolling, the transportation is convenient, and the transportation cost is saved; 2. in the using process, the flexible screen can be rolled or unfolded by the telescopic mechanism, so that the display requirements of users with different sizes are met; 3. when not in use, the indoor space can be saved after rolling.
There are many flexible display devices on the market today, but the existing flexible display devices have some disadvantages as follows: 1. the stent is easy to shake in the process of unfolding; 2. the occupied space is still large after rolling; 3. for the flexible display device which can stretch up and down, the occupied area is large after the flexible display device is contracted.
Disclosure of Invention
An object of the embodiment of the application is to provide a flexible screen extending structure to solve the technical problem that the flexible display device that exists among the prior art is not high in stability and large in occupied space after rolling.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a flexible screen telescopic structure including:
a support;
the two scroll shafts are respectively positioned on two opposite sides of the bracket and are respectively connected with two ends of the flexible screen;
the V-shaped link mechanisms are respectively positioned on two opposite sides of the bracket, one end of each V-shaped link mechanism is connected to the bracket, and the other end of each V-shaped link mechanism is connected to the corresponding reel;
and the driving mechanism is respectively connected with each V-shaped link mechanism so as to respectively drive each V-shaped link mechanism to contract or extend.
In a possible embodiment, the driving mechanism is respectively connected with each V-shaped link mechanism to respectively drive each V-shaped link mechanism to synchronously contract and/or synchronously extend; and/or
The driving mechanism is mounted on the bracket.
In a possible embodiment, the V-shaped link mechanisms positioned on the two sides of the bracket are arranged in a mirror image mode by taking the bracket as a center; the number of the V-shaped link mechanisms positioned on each side of the bracket is at least two and is even; and two adjacent V-shaped link mechanisms are used as a group, and the two adjacent V-shaped link mechanisms are arranged in a mirror image mode along the length extending direction of the support.
In a possible embodiment, the driving mechanism is provided with a group of first driving assemblies corresponding to each group of the V-shaped link mechanisms, and the two V-shaped link mechanisms which are arranged by taking the bracket as a center in a mirror image mode are respectively connected with the same first driving assembly;
the first drive assembly includes:
a motor;
the lead screw is connected with the motor and is a bidirectional lead screw;
the two nuts are respectively sleeved on the two sections of threads of the screw rod;
the first push rods correspond to the nuts, two first push rods are arranged on the nuts respectively, one ends of the first push rods are hinged to the nuts, and the other ends of the first push rods are hinged to the corresponding V-shaped link mechanisms.
In a possible embodiment, the drive mechanism comprises several second drive assemblies;
the second drive assembly includes:
the first electric push rod is arranged on the bracket;
the number of the second push rods is two, one end of each second push rod is hinged to the output end of the corresponding first electric push rod, and the other end of each second push rod is hinged to the corresponding V-shaped connecting rod mechanism in a mirror image mode on the two sides of the support.
In a possible embodiment, the driving mechanism is provided with a second electric push rod corresponding to each V-shaped link mechanism, one end of the second electric push rod is hinged with the bracket, and the other end of the second electric push rod is hinged with the V-shaped link mechanism.
In a possible embodiment, the V-shaped link mechanism comprises a first link and a second link which are the same in length, one end of the first link is hinged to the bracket, and one end of the second link is hinged to the reel on one side; a first gear is fixed at the other end of the first connecting rod, a second gear is fixed at the other end of the second connecting rod, and the first gear and the second gear have the same pressure angle, modulus and tooth number and are meshed with each other; the axis connecting line of the first gear and the second gear is perpendicular to the length extending direction of the support, and the connecting line of one end of the adjacent first connecting rod and one end of the adjacent second connecting rod is perpendicular to the length extending direction of the support.
In a possible embodiment, the V-shaped link mechanism further includes a third link, the third link and the first link are equal in length and are arranged in parallel to each other, one end of the third link is hinged to the bracket, and the other end of the third link is coaxially hinged to the second gear;
the hinge point of one end of the third connecting rod and the hinge point of one end of the first connecting rod are located in a first plane, the hinge point of the other end of the third connecting rod and the hinge point of the other end of the first connecting rod are located in a second plane, and the first plane and the second plane are parallel to each other and are perpendicular to the length extending direction of the support.
In a possible embodiment, the V-shaped link mechanism further includes a gear box formed with a receiving groove in which the first gear and the second gear are received; the gear box is provided with a first rotating shaft and a second rotating shaft which are parallel to each other, the first gear is rotated and arranged on the first rotating shaft, the second gear is rotated and arranged on the second rotating shaft, and the other end of the third connecting rod is rotated and arranged on the second rotating shaft and positioned outside the gear box.
In a possible embodiment, a groove is formed in the position, corresponding to one end of the third connecting rod, of the bracket, and one end of the third connecting rod is rotatably arranged in the groove.
In a possible embodiment, the V-shaped link mechanism further includes a connecting member, where a third rotating shaft and a fourth rotating shaft that are parallel to each other are fixed to the connecting member, a distance between the third rotating shaft and the fourth rotating shaft is set as a center distance between the first gear and the second gear, the first gear is rotatably disposed on the third rotating shaft, and the second gear is rotatably disposed on the fourth rotating shaft.
In a possible embodiment, each of the V-shaped linkages has a first state contracted to a first angle and a second state expanded to a second angle.
In a possible embodiment, the angle of deployment of each said V-shaped linkage is in the range 0 ° to 150 °.
The application also provides a flexible display device, including flexible screen and above-mentioned flexible screen extending structure, the both ends of flexible screen respectively with two the spool is connected.
The application provides a flexible screen extending structure's beneficial effect lies in: the embodiment of the application provides a flexible screen extending structure, which comprises a bracket, the both sides spool, a plurality of V type link mechanism and actuating mechanism's setting, actuating mechanism can drive each V type link mechanism shrink and extend, thereby can drive flexible screen along the horizontal direction through the both sides spool and carry out the rolling or extend, and the size that extends can be controlled according to actuating mechanism, thereby make the flexible display device portable who has this flexible screen extending structure and flexible screen, can adjust the extension size according to user's hobby, can also carry out the rolling along the horizontal direction when not watching simultaneously, and then make this flexible display device area after the rolling little. Simultaneously, because V type link mechanism's setting for this flexible display device can roll up to minimum dimension along the horizontal direction, and the tie point of V type link mechanism and spool and support is all fixed, makes flexible display device steadily can not rock when the rolling. In addition, the flexible display device of this application is through above-mentioned flexible screen extending structure's setting for area is little after this flexible display device contracts, the transport of being convenient for, and the user can expand different sizes according to the demand, and expandes steadily, and life is high.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic perspective view of a flexible display device provided in an embodiment of the present application;
FIG. 2 is a schematic view of the flexible screen of FIG. 1 after being unfolded;
FIG. 3 is a schematic view of the flexible screen of FIG. 1 after the flexible screen is contracted;
FIG. 4 is a schematic view of the flexible screen extension of FIG. 2 with the roller removed;
FIG. 5 is a schematic view of the flexible telescopic structure of FIG. 4 with one side of the V-shaped linkage removed;
FIG. 6 is a schematic view of the installation of the first, second, third, first, second and gear boxes;
FIG. 7 is a schematic view of the installation of the first link, the second link, the first gear and the second gear;
FIG. 8 is a schematic view of a flexible screen telescopic structure according to another embodiment of the present application in an expanded state;
fig. 9 is a schematic diagram of the flexible screen telescopic structure in fig. 8 in a rolled state;
FIG. 10 is a schematic expanded view of a flexible screen extension according to yet another embodiment of the present application;
fig. 11 is a schematic structural diagram of a flexible screen telescopic structure according to another embodiment of the present application after being unfolded.
Wherein, in the figures, the respective reference numerals:
100. a flexible screen telescopic structure; 10. a support; 11. a groove; 20. a reel; 30. a V-shaped link mechanism; 31. a first link; 32. a second link; 33. a third link; 34. a first gear; 35. a second gear; 36. a gear box; 361. a receiving groove; 37. a first rotating shaft; 38. a second rotating shaft; 391. a connecting member; 392. a third rotating shaft; 393. a fourth rotating shaft; 40. a drive mechanism; 41. a first drive assembly; 411. a motor; 412. a motor bracket; 413. a lead screw; 414. a nut; 415. a first push rod; 42. a second drive assembly; 421. a first electric push rod; 422. a second push rod; 43. a second electric push rod; 200. a flexible screen; x, a first direction; y, a second direction; z, third direction.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a number" means two or more unless specifically limited otherwise.
Referring to fig. 1, a flexible screen telescopic structure 100 provided in an embodiment of the present application will now be described. This flexible screen extending structure 100 is used for extending flexible screen 200 along the horizontal direction and rolling, the flexible display device's of being convenient for transport, the extension of different width dimensions, and the rolling is in order to save indoor space.
Referring to fig. 2 and 3, the flexible screen telescopic structure 100 includes a support 10, two reels 20, a plurality of V-shaped link mechanisms 30 and a driving mechanism 40. The support 10 extends along the first direction X, the two reels 20 are respectively located on two opposite sides of the support 10 along the second direction Y, the two reels 20 are respectively connected with two ends of the flexible screen 200 in the width direction, the plurality of V-shaped link mechanisms 30 are respectively located on two opposite sides of the support 10, one end of each V-shaped link mechanism 30 is connected to the support 10, the other end of each V-shaped link mechanism 30 is connected to the corresponding reel 20, and the driving mechanism 40 is respectively connected with each V-shaped link mechanism 30 to respectively drive each V-shaped link mechanism 30 to stretch or extend along the second direction Y. The first direction X is vertical to the second direction Y in fig. 2, the second direction Y is horizontal (horizontal) in fig. 2, and the second direction Y is the same as the width direction of the flexible screen 200. After the two ends of the flexible screen 200 in the width direction are respectively mounted on the two reels 20, the driving mechanism 40 drives each V-shaped link mechanism 30 to extend, so that the flexible screen 200 can be driven by the two reels 20 to be unfolded in the second direction Y, and the unfolding size can be determined by controlling the unfolding amplitude of each V-shaped link mechanism 30 by the driving mechanism 40; when viewing is not needed, each V-shaped link mechanism 30 is driven to contract by the driving mechanism 40, so that the flexible screen 200 is driven to be wound in the second direction Y by the two reels 20. The support is a vertical support.
It should be noted that the V-shaped link mechanism 30 is a link mechanism formed by at least two links hinged to each other to form a V-shape, and occupies a small space after being retracted relative to the scissor-type telescopic mechanism. The connection point between the V-shaped link mechanism 30 and the bracket 10 and the reel 20 is fixed.
Flexible screen extending structure 100 in this embodiment, through support 10, both sides spool 20, the setting of a plurality of V type link mechanism 30 and actuating mechanism 40, actuating mechanism 40 can drive each V type link mechanism 30 shrink and extend, thereby can drive flexible screen 200 through both sides spool 20 and carry out the rolling or extend along the horizontal direction, and the size that extends can be controlled according to actuating mechanism 40, thereby make the flexible display device who has this flexible screen extending structure 100 and flexible screen 200 portable, can adjust the extension size according to user's hobby, can also carry out the rolling along the horizontal direction when not watching simultaneously, and then make this flexible display device area after the rolling little. Meanwhile, due to the arrangement of the V-shaped link mechanism 30, the flexible display device can be rolled to the minimum size along the horizontal direction, and the connection points of the V-shaped link mechanism 30, the scroll 20 and the support 10 are fixed, so that the flexible display device is stable and can not shake when being rolled.
In a specific embodiment, the driving mechanism 40 is respectively connected to each V-shaped linkage 30 to respectively drive each V-shaped linkage 30 to synchronously contract and synchronously expand, thereby enabling the entire flexible screen telescopic structure to be smoothly contracted and smoothly expanded. It should be understood that in other embodiments of the present application, the driving mechanism 40 may only drive the V-shaped linkages 30 to extend synchronously, or only drive the V-shaped linkages 30 to retract synchronously, which is not limited herein.
Specifically, the driving mechanism 40 is mounted on the bracket 10. It is understood that in other embodiments of the present application, the driving mechanism 40 may be mounted on a structure other than the support frame 10 instead of the support frame 10, and is not limited thereto.
Specifically, referring to fig. 2 and 3, each V-shaped link mechanism 30 has a first state and a second state, and when the V-shaped link mechanism 30 is in the first state, the V-shaped link mechanism 30 is contracted to a first included angle; when the V-shaped linkage 30 is in the second state, the V-shaped linkage 30 is unfolded to a second included angle. Specifically, when the V-shaped linkage 30 is in the first state, the V-shaped linkage 30 is contracted to 0 °, i.e., two links of the V-shaped linkage 30 are folded and arranged in parallel with each other. When the V-shaped linkage 30 is in the second state, the V-shaped linkage 30 is unfolded at an angle of 150 °. In addition, the degree of the spread of the V-shaped linkage 30 may be determined according to actual requirements, that is, the spread angle of the V-shaped linkage 30 may range from 0 ° to 150 °.
Referring to fig. 2, the V-shaped link mechanisms 30 located at both sides of the bracket 10 are arranged in a mirror image with the bracket 10 as the center; the number of V-shaped linkages 30 on each side of the support 10 is equal and at least two. Specifically, the V-shaped link mechanisms 30 on both sides are arranged in a mirror image manner along the second direction Y with the bracket 10 as a center, and the number of the V-shaped link mechanisms 30 on both sides along the first direction X is at least two. This application is through setting up the V type link mechanism 30 mirror image with the support 10 both sides, and quantity is at least two to make the spool 20 of both sides can synchronous rolling and extend, and steady in rolling and extension process.
In a specific embodiment, the number of the V-shaped linkages 30 on each side of the support 10 is even, and two adjacent V-shaped linkages 30 are taken as a group, and the two adjacent V-shaped linkages 30 are arranged in a mirror image along the length extending direction of the support 10, wherein the length extending direction of the support 10 is the first direction X.
Referring to fig. 2, taking the number of the V-shaped link mechanisms 30 on each side of the support 10 as an example, the two V-shaped link mechanisms 30 are arranged along the first direction X in a mirror image manner, the tips of the two V-shaped link mechanisms 30 are arranged close to each other, and the open ends of the two V-shaped link mechanisms 30 are arranged away from each other, so that the strength between the two V-shaped link mechanisms 30 is large enough, the reel 20 is supported from the middle to the two ends in the extending process, the supporting force is large and the force distribution is uniform, and the reel 20 on the two sides can be stably supported. Similarly, when the number of the V-shaped link mechanisms 30 on both sides is four or more, the V-shaped link mechanisms 30 of each group may be uniformly distributed at equal intervals along the length direction of the bracket 10.
The driving mechanism 40 is provided with a set of first driving assemblies 41 corresponding to each set of V-shaped link mechanisms 30, and the two V-shaped link mechanisms 30 which are arranged by taking the bracket 10 as a center mirror image are respectively connected with the same first driving assembly 41 and driven by the same first driving assembly 41. Taking the present application as an example, please refer to fig. 4 and 5, two V-shaped link mechanisms 30 located at the left side of the bracket 10 share one set of first driving assembly 41, and the V-shaped link mechanisms 30 located at the two sides of the bracket 10 share one set of first driving assembly 41, so that the four V-shaped link mechanisms 30 of the present application share one set of first driving assembly 41, that is, the same first driving assembly 41 can drive the four V-shaped link mechanisms 30 to contract and extend synchronously, so that the images in the whole flexible screen telescopic structure 100 can be synchronously transmitted through the same power source and power drive, and the flexible screen telescopic structure 100 can be expanded and contracted smoothly according to the use requirements. Similarly, when a plurality of V-shaped linkages 30 are disposed on one side of the bracket 10, a first driving assembly 41 is disposed corresponding to each V-shaped linkage 30.
Specifically, referring to fig. 4 and 5, the first driving assembly 41 includes a motor 411, a lead screw 413, a nut 414, and a first push rod 415. The motor 411 is installed at one end of the support 10 through the motor support 412, the lead screw 413 is connected with the motor 411, two ends of the lead screw 413 are respectively and rotatably arranged at two ends of the support 10 along the length direction, the lead screw 413 is a bidirectional lead screw, and two sections of threads with different rotation directions, namely left-handed threads and right-handed threads, are arranged on the lead screw 413. The number of the nuts 414 is two, and the two nuts 414 are respectively sleeved on the two sections of threads of the lead screw 413. Two first push rods 415 are respectively arranged on each nut 414, the two first push rods 415 are respectively symmetrically arranged on two sides of the nut 414, four first push rods 415 are arranged on the two nuts 414, and the four first push rods 415 are respectively used for pushing the four V-shaped link mechanisms 30. Specifically, one end of the first push rod 415 is hinged to the nut 414, and the other end of the first push rod 415 is hinged to the corresponding V-shaped link mechanism 30. When the flexible screen 200 needs to be unfolded, the motor 411 is turned on to rotate, the lead screw 413 is driven to rotate, the lead screw 413 drives the two nuts 414 on the lead screw 413 to move along the direction of mutual deviation, and then the first push rod 415 gradually turns to the direction perpendicular to the support 10 from the direction parallel to the support 10, so as to push the V-shaped link mechanism 30 to unfold the V-shaped link mechanism 30, and further drive the flexible screen 200 to unfold. When the flexible screen 200 needs to be retracted, the motor 411 is turned on to rotate, the screw 413 is driven to rotate, the screw 413 drives the two nuts 414 on the screw 413 to move in the direction approaching to each other, and the first push rod 415 gradually turns to the direction parallel to the support 10 from the direction perpendicular to the support 10, so that the V-shaped link mechanism 30 is pulled to retract the V-shaped link mechanism 30, and the flexible screen 200 is driven to be retracted.
In an embodiment, referring to fig. 4 and 5, the V-shaped link mechanism 30 includes a first link 31 and a second link 32, the first link 31 and the second link 32 have the same length, one end of the first link 31 is hinged to the bracket 10, and one end of the second link 32 is hinged to one of the side reels 20; a first gear 34 is fixed at the other end of the first connecting rod 31, a second gear 35 is fixed at the other end of the second connecting rod 32, the first gear 34 and the second gear 35 have the same parameters and are meshed with each other, specifically, the pressure angle, the modulus and the tooth number of the first gear 34 and the second gear 35 are the same, and then the first gear 34 and the second gear 35 are meshed with each other and then synchronously and reversely rotate; the axis connecting line of the first gear 34 and the second gear 35 is perpendicular to the length extending direction of the bracket 10, and the connecting line of one end of the adjacent first connecting rod 31 and one end of the adjacent second connecting rod 32 is perpendicular to the length extending direction of the bracket 10, that is, the axis connecting line of the first gear 34 and the second gear 35 extends along the horizontal direction, and the connecting line of one end of the first connecting rod 31 and one end of the second connecting rod 32 extends along the horizontal direction, so that when the V-shaped link mechanism 30 is extended, the reels 20 on both sides can be smoothly extended along the horizontal direction, and can be smoothly retracted along the horizontal direction.
In an embodiment, referring to fig. 4 and 5, the V-shaped link mechanism 30 further includes a third link 33, the third link 33 and the first link 31 are equal in length and parallel to each other, one end of the third link 33 is hinged to the bracket 10, the other end of the third link 33 is hinged to the second gear 35 coaxially, and two ends of the third link 33 and two ends of the first link 31 are located on the same parallelogram. The hinge point of one end of the third connecting rod 33 and the hinge point of one end of the first connecting rod 31 are located in a first plane, the hinge point of the other end of the third connecting rod 33 and the hinge point of the other end of the first connecting rod 31 are located in a second plane, the first plane and the second plane are parallel to each other, and the first plane and the second plane are perpendicular to the length extending direction of the support 10, so that the hinge point of one end of the third connecting rod 33 and the hinge point of one end of the first connecting rod 31 are located at the same height, and the hinge point of the other end of the third connecting rod 33 and the hinge point of the other end of the first connecting rod 31 are located at the same height. And the second gear 35 is coaxially hinged with the other end of the third connecting rod 33, so that the axis of the second gear 35 and the hinge point at the other end of the first connecting rod 31 are located at the same height, the axis of the first gear 34 and the axis of the second gear 35 are located at the same height, and due to the arrangement of the parallelogram, the distance between the axis of the first gear 34 and the axis of the second gear 35 is always kept unchanged, thereby ensuring that the first gear 34 and the second gear 35 always synchronously and reversely rotate, the included angles between the first connecting rod 31 and the second connecting rod 32 and the horizontal direction are always equal, and further ensuring that the flexible screen 200 is stably unfolded and stably contracted along the horizontal direction.
In a specific embodiment, referring to fig. 6 and 7, the V-shaped link mechanism 30 further includes a gear box 36, the gear box 36 is formed with a receiving groove 361, the receiving groove 361 extends along a horizontal direction, and the first gear 34 and the second gear 35 are received in the receiving groove 361 and engaged with each other in the receiving groove 361. The gear box 36 is provided with a first rotating shaft 37 and a second rotating shaft 38 which are parallel to each other, the first rotating shaft 37 and the second rotating shaft 38 are distributed at intervals along the horizontal direction, and both the first rotating shaft 37 and the second rotating shaft 38 extend along the third direction Z, that is, along the thickness direction of the bracket 10. The first direction X, the second direction Y, and the third direction Z are mutually perpendicular to each other, and the third direction Z is specifically the thickness direction of the support 10 in fig. 6.
The first gear 34 is rotatably disposed on the first rotating shaft 37, and the second gear 35 is rotatably disposed on the second rotating shaft 38, so that the first gear 34 and the second gear 35 can be located on the same horizontal line. The other end of the third link 33 is rotatably disposed on the second rotating shaft 38 and located outside the gear box 36, that is, the third link 33 and the second link 32 are disposed at an interval along the third direction Z, and the third link 33 and the first link 31 are disposed at an interval along the third direction Z, so that not only can the parallelogram structure formed by the first link 31 and the third link 33 ensure that the axial distance between the first gear 34 and the second gear 35 is unchanged, but also when the first link 31, the second link 32 and the third link 33 are completely contracted, the third link 33 will not interfere with the first link 31, and the third link 33 will be folded at one side of the first link 31 along the third direction Z, thereby making the size of the whole flexible display device along the second direction Y (i.e. the horizontal direction) smaller when being wound.
Referring to fig. 5, in order to facilitate the installation of the third link 33 on the bracket 10, a groove 11 is formed on the bracket 10 at a position corresponding to one end of the third link 33, and one end of the third link 33 is rotatably disposed at the groove 11, so as to avoid interference with the first link 31.
The application further provides a flexible display device, which comprises a flexible screen 200 and the flexible screen telescopic structure 100, wherein two ends of the flexible screen 200 are respectively connected with the two reels 20. The flexible display device of this application is through the setting of above-mentioned flexible screen extending structure 100 for area is little after this flexible display device contracts, the transport of being convenient for, and the user can expand different sizes as required, and just expands steadily, and life is high.
In another embodiment of the present application, referring to fig. 8 and 9, the flexible panel telescopic structure 100 does not use the motor 411 and the lead screw 413 to drive each V-shaped link mechanism 30, but drives each V-shaped link mechanism 30 through an electric push rod. Specifically, the drive mechanism 40 includes two second drive assemblies 42. The second driving assembly 42 includes a first electric push rod 421 and two second push rods 422, the first electric push rod 421 is installed on the support 10, and the extending direction of the first electric push rod 421 is the same as the length extending direction of the support 10, one end of each of the two second push rods 422 is hinged to the output end of the first electric push rod 421, and the other end of each of the two second push rods 422 is hinged to two V-shaped link mechanisms 30 arranged on two sides of the support 10 in a mirror image manner. During operation, the first electric push rod 421 is started, and the output end of the first electric push rod 421 linearly extends and retracts, so as to drive the two second push rods 422 thereon to synchronously move, and further drive the V-shaped link mechanisms 30 at the two sides of the support 10 to synchronously extend and retract. In the embodiment, each V-shaped link mechanism 30 is driven by the first electric push rod 421, which is simple in structure and convenient to drive, and simultaneously can drive the V-shaped link mechanisms 30 on two sides to move synchronously. In addition, the number of the second driving units 42 increases as the number of the V-shaped link mechanisms 30 on one side of the bracket 10 increases.
Referring to fig. 8, in the embodiment of the second driving assembly 42, since two V-shaped link mechanisms 30 are disposed at one side of the bracket 10, two sets of the second driving assemblies 42 are correspondingly disposed, and include two first electric push rods 421 and four second push rods 422. Because the first electric push rod 421 extends and retracts along the length direction of the support 10, in order to avoid interference of the two first electric push rods 421 in working, the two first electric push rods 421 are distributed on the support 10 along the third direction Z, and the two first electric push rods 421 are arranged in a mirror image manner along the first direction X, so that interference of the two second driving assemblies 42 in working is avoided, and the four V-shaped link mechanisms 30 can be driven to synchronously work.
In another embodiment of the present application, referring to fig. 10, the driving mechanism 40 is provided with a second electric push rod 43 corresponding to each V-shaped link mechanism 30, one end of the second electric push rod 43 is hinged to the bracket 10, and the other end of the second electric push rod 43 is hinged to the V-shaped link mechanism 30, that is, each V-shaped link mechanism 30 needs to be driven separately by one second electric push rod 43, and in addition, in order to ensure that each second electric push rod 43 can move synchronously, each second electric push rod 43 can be electrically connected to the same control board, and each second electric push rod 43 is driven synchronously by the control board. In this embodiment, since the structure of each second electric push rod 43 is simple, so that the structure of the whole driving mechanism 40 is simple, the flexible display device occupies a smaller space after being rolled.
In another embodiment of the present application, the third link 33 is not provided in this embodiment, but the connection member 391, the third rotation shaft 392, and the fourth rotation shaft 393 are added. Specifically, referring to fig. 11, the V-shaped link mechanism 30 further includes a connecting member 391, the connecting member 391 is fixedly provided with a third rotating shaft 392 and a fourth rotating shaft 393, the third rotating shaft 392 and the fourth rotating shaft 393 both extend along the third direction Z, the third rotating shaft 392 and the fourth rotating shaft 393 are arranged at intervals along the second direction Y, and the distance between the third rotating shaft 392 and the fourth rotating shaft 393 along the second direction Y is set as the center distance between the first gear 34 and the second gear 35, the first gear 34 is rotatably arranged on the third rotating shaft 392, the second gear 35 is rotatably arranged on the fourth rotating shaft 393, so that the center distance between the first gear 34 and the second gear 35 is ensured by the third rotating shaft 392 and the fourth rotating shaft 393, the axial lines of the first gear 34 and the second gear 35 can also be ensured to be always horizontal, and the center distance between the first gear 34 and the second gear 35 is unchanged, thereby ensuring that the first gear 34 and the second gear 35 always synchronously and reversely rotate, the included angles between the first connecting rod 31 and the second connecting rod 32 and the horizontal direction are always equal, so that the flexible screen 200 can be stably unfolded and stably contracted along the horizontal direction.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (14)
1. A flexible screen extending structure, comprising:
a support;
the two scroll shafts are respectively positioned on two opposite sides of the bracket and are respectively connected with two ends of the flexible screen;
the V-shaped link mechanisms are respectively positioned on two opposite sides of the bracket, one end of each V-shaped link mechanism is connected to the bracket, and the other end of each V-shaped link mechanism is connected to the corresponding reel;
and the driving mechanism is respectively connected with each V-shaped link mechanism so as to respectively drive each V-shaped link mechanism to contract or extend.
2. The flexible screen extension structure of claim 1, wherein the drive mechanism is connected to each of the V-shaped linkages respectively to drive each of the V-shaped linkages to contract synchronously and/or expand synchronously respectively; and/or
The driving mechanism is mounted on the bracket.
3. The flexible screen telescoping structure of claim 2, wherein the V-shaped linkages on both sides of the support are mirrored about the support; the number of the V-shaped link mechanisms positioned on each side of the bracket is at least two and is even; and two adjacent V-shaped link mechanisms are used as a group, and the two adjacent V-shaped link mechanisms are arranged in a mirror image mode along the length extending direction of the support.
4. A flexible screen extension and retraction arrangement according to claim 3, wherein said drive mechanism is provided with a set of first drive components for each set of said V-shaped linkages, and wherein two of said V-shaped linkages, mirrored about said support, are each connected to the same said first drive component;
the first drive assembly includes:
a motor;
the lead screw is connected with the motor and is a bidirectional lead screw;
the two nuts are respectively sleeved on the two sections of threads of the screw rod;
the first push rods correspond to the nuts, two first push rods are arranged on the nuts respectively, one ends of the first push rods are hinged to the nuts, and the other ends of the first push rods are hinged to the corresponding V-shaped link mechanisms.
5. The flexible screen telescoping structure of claim 2, wherein the drive mechanism comprises a plurality of second drive assemblies;
the second drive assembly includes:
the first electric push rod is arranged on the bracket;
the number of the second push rods is two, one end of each second push rod is hinged to the output end of the corresponding first electric push rod, and the other end of each second push rod is hinged to the corresponding V-shaped connecting rod mechanism in a mirror image mode on the two sides of the support.
6. The flexible panel telescopic structure according to claim 2, wherein the driving mechanism is provided with a second electric push rod corresponding to each of the V-shaped link mechanisms, one end of the second electric push rod is hinged with the bracket, and the other end of the second electric push rod is hinged with the V-shaped link mechanism.
7. The flexible screen telescopic structure of any one of claims 1 to 6, wherein the V-shaped link mechanism comprises a first link and a second link which are the same in length, one end of the first link is hinged to the bracket, and one end of the second link is hinged to the reel on one side; a first gear is fixed at the other end of the first connecting rod, a second gear is fixed at the other end of the second connecting rod, and the first gear and the second gear have the same pressure angle, modulus and tooth number and are meshed with each other; the axis connecting line of the first gear and the second gear is perpendicular to the length extending direction of the support, and the connecting line of one end of the adjacent first connecting rod and one end of the adjacent second connecting rod is perpendicular to the length extending direction of the support.
8. The flexible screen telescopic structure of claim 7, wherein the V-shaped link mechanism further comprises a third link, the third link is equal in length to the first link and is arranged in parallel with the first link, one end of the third link is hinged to the bracket, and the other end of the third link is hinged to the second gear coaxially;
the hinge point of one end of the third connecting rod and the hinge point of one end of the first connecting rod are located in a first plane, the hinge point of the other end of the third connecting rod and the hinge point of the other end of the first connecting rod are located in a second plane, and the first plane and the second plane are parallel to each other and are perpendicular to the length extending direction of the support.
9. The flexible screen telescopic structure according to claim 8, wherein the V-shaped link mechanism further comprises a gear box formed with a receiving groove in which the first gear and the second gear are received; the gear box is provided with a first rotating shaft and a second rotating shaft which are parallel to each other, the first gear is rotated and arranged on the first rotating shaft, the second gear is rotated and arranged on the second rotating shaft, and the other end of the third connecting rod is rotated and arranged on the second rotating shaft and positioned outside the gear box.
10. The flexible screen extension structure of claim 9, wherein the bracket has a groove at a position corresponding to one end of the third link, and one end of the third link is rotatably disposed in the groove.
11. The flexible panel telescopic structure of claim 7, wherein the V-shaped link mechanism further comprises a connecting member, the connecting member is fixed with a third rotating shaft and a fourth rotating shaft which are parallel to each other, a distance between the third rotating shaft and the fourth rotating shaft is set as a center distance between the first gear and the second gear, the first gear is rotatably disposed on the third rotating shaft, and the second gear is rotatably disposed on the fourth rotating shaft.
12. A flexible screen extension and retraction arrangement according to claim 1, wherein each of said V-shaped linkages has a first configuration retracted to a first angle and a second configuration extended to a second angle.
13. A flexible screen extension and retraction structure as claimed in claim 12, wherein each of said V-shaped linkages extends through an angle in the range of 0 ° to 150 °.
14. A flexible display device, comprising a flexible screen and a flexible screen telescopic structure according to any one of claims 1 to 13, wherein two ends of the flexible screen are respectively connected to two of the reels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602017.6A CN114694488A (en) | 2020-12-29 | 2020-12-29 | Flexible screen telescopic structure and flexible display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602017.6A CN114694488A (en) | 2020-12-29 | 2020-12-29 | Flexible screen telescopic structure and flexible display device |
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| Publication Number | Publication Date |
|---|---|
| CN114694488A true CN114694488A (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011602017.6A Pending CN114694488A (en) | 2020-12-29 | 2020-12-29 | Flexible screen telescopic structure and flexible display device |
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| CN (1) | CN114694488A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115175476A (en) * | 2022-07-11 | 2022-10-11 | 维沃移动通信有限公司 | Electronic device |
| CN115294867A (en) * | 2022-08-12 | 2022-11-04 | 武汉飞恩微电子有限公司 | Flexible display screen with extension mode and storage mode and display method thereof |
| CN115854209A (en) * | 2022-12-07 | 2023-03-28 | 江苏知之为计算机有限公司 | Self-management type operation platform for developing network social platform |
-
2020
- 2020-12-29 CN CN202011602017.6A patent/CN114694488A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115175476A (en) * | 2022-07-11 | 2022-10-11 | 维沃移动通信有限公司 | Electronic device |
| CN115294867A (en) * | 2022-08-12 | 2022-11-04 | 武汉飞恩微电子有限公司 | Flexible display screen with extension mode and storage mode and display method thereof |
| CN115854209A (en) * | 2022-12-07 | 2023-03-28 | 江苏知之为计算机有限公司 | Self-management type operation platform for developing network social platform |
| CN115854209B (en) * | 2022-12-07 | 2023-09-15 | 江苏知之为计算机有限公司 | Operation panel is used in development of self-management formula network social platform |
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