CN113639162A - Support structure for flexible screen and flexible display device - Google Patents
Support structure for flexible screen and flexible display device Download PDFInfo
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- CN113639162A CN113639162A CN202110947118.5A CN202110947118A CN113639162A CN 113639162 A CN113639162 A CN 113639162A CN 202110947118 A CN202110947118 A CN 202110947118A CN 113639162 A CN113639162 A CN 113639162A
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- flexible screen
- support structure
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- rotating shaft
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- 238000006073 displacement reaction Methods 0.000 claims description 4
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- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000013016 damping Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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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
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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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
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
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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
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2021—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis
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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)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
Abstract
The application provides a supporting structure and flexible display device for flexible screen, and this supporting structure includes a plurality of supporting element, and a plurality of supporting element link together in proper order along first direction, and the supporting element extends along the second direction perpendicular with first direction, and the supporting element can be crooked about the second direction. The flexible display device comprises a flexible screen, a buffer layer and a support structure; the flexible screen is including the display surface that is used for showing and the relative backlight face that sets up with the display surface, and the buffer layer is installed in the backlight face, and bearing structure installs in the buffer layer on the surface relative with the backlight face. According to the technical scheme, the whole supporting structure has high redundancy through the design of the multiple sections of supporting units, the supporting structure can be bent and fixed at an angle of a user demand according to the user demand, and a user can control the supporting structure to drive the flexible screen to be unfolded or curled through a micro motor in a manual mode.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, in particular to a supporting structure for a flexible screen and a flexible display device.
[ background of the invention ]
As users demand display devices increasingly, flexible screens are developing more and more rapidly, and a variety of technical researches on flexible screens, such as support structures of various flexible screens, are developing vigorously.
The flexible screen on the existing market is mostly a structure which can be curled and flattened and is made of flexible materials, the shape is single, most of flexible screens can only be stretched along one direction, and a display screen is always a plane. The support structure that provides rigidity to the flexible screen during its flattening is complex. The flexible screen that can curl is when in-service use, generally need install on the carrier, uses hinge bearing structure more, and the user makes it freely stretch out through pulling flexible screen when using, or drives flexible screen curl through external drive power.
[ summary of the invention ]
In order to solve the above problems, the present application provides a support structure for a flexible screen and a flexible display device.
In a first aspect, the present application discloses a support structure for a flexible screen, the support structure comprises a plurality of support units, the plurality of support units are sequentially connected together along a first direction, the support units extend along a second direction perpendicular to the first direction, and the support units can be bent about the second direction.
In a second aspect, the present application discloses a flexible display device comprising a flexible screen, a buffer layer and a support structure; the flexible screen comprises a display surface used for displaying and a backlight surface arranged opposite to the display surface, the buffer layer is installed on the backlight surface, and the supporting structure is installed on the surface, opposite to the backlight surface, of the buffer layer.
The supporting structure and the flexible display device for the flexible screen disclosed by the embodiment of the application make the whole supporting structure have high redundancy through the design of a plurality of sections of supporting units, can be bent and fixed at an angle required by a user according to the requirement of the user, and the user can control the supporting structure to drive the flexible screen to unfold or curl through a manual mode and a micro motor.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments 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 creative efforts.
FIG. 1 is a side view of a support structure provided in example 1 of the present application;
FIG. 2 is a top view of a support structure provided in example 1 of the present application;
FIG. 3 is a schematic view of a support structure provided in example 1 of the present application bent into an arc shape;
FIG. 4 is a schematic view of a support structure provided in example 1 of the present application bent into a wave shape;
FIG. 5 is a schematic view of a support structure provided in example 1 of the present application bent into a right-angled configuration;
fig. 6 is a schematic structural diagram of a supporting unit in the supporting structure provided in embodiment 1 of the present application;
fig. 7 is a schematic structural diagram of a rotating shaft in a supporting unit of the supporting structure provided in embodiment 1 of the present application;
FIG. 8 is a schematic side sectional view of a support unit of the support structure provided in example 1 of the present application;
fig. 9 is a side view of a flexible display device provided in embodiment 2 of the present application;
fig. 10 is a bottom view of the flexible display device provided in embodiment 2 of the present application;
fig. 11 is a schematic diagram of an embodiment of a flexible display device provided in example 2 of the present application;
fig. 12 is a schematic diagram of an internal structure of a storage device in an embodiment of the flexible display device provided in example 2 of the present application;
fig. 13 is a schematic diagram of another specific embodiment of the flexible display device provided in example 2 of the present application.
Reference numerals:
10-a support structure; 11-a support unit; 12-a swivel arm; 13-a rotating shaft; 14-a connector; 15-a support plate; 16-connecting lugs; 17-a drive member; 18-helical tooth member; 19-a groove structure; 20-a flexible screen; 21-a display surface; 22-a backlight surface; 30-a buffer layer; 40-a storage device; 50-a housing; 51-a guide rail; 52-a stop block; an X-axis; d1-first direction; d2-second direction.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should 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.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, third, etc. may be used in the embodiments of the present application to describe directions, positions, etc., these directions, positions, etc. should not be limited by these terms. These terms are only used to distinguish one direction, a position, and the like from another. For example, the first direction may also be referred to as a second direction, and similarly, the second direction may also be referred to as a first direction, without departing from the scope of the embodiments of the present application.
Example 1
The embodiment 1 of the application discloses a supporting structure, which is applied to a flexible screen, can realize bending of various angles while providing hardness for the flexible screen, and comprises large-angle bending and small-angle bending, wherein the small-angle bending refers to slight bending within 5 degrees.
As shown in fig. 1 and 2, the supporting structure 10 of the present embodiment 1 includes a plurality of supporting units 11, the plurality of supporting units 11 are sequentially connected together along a first direction D1, the supporting units 11 extend along a second direction D2 perpendicular to the first direction D1, and the supporting units 11 are bendable about the second direction D2. The first direction D1 is a direction from the leftmost supporting unit 11 to the rightmost supporting unit 11 in fig. 1, the second direction D2 is a direction from the lowermost end of the supporting unit 11 to the uppermost end in fig. 2, and the first direction D1 and the second direction D2 form a plane together. The supporting units 11 are connected in a row in an end-to-end manner along the first direction D1, and two adjacent supporting units 11 can be linked, that is, when one supporting unit 11 bends, the supporting unit 11 connected thereto will rotate along with the bending of the supporting unit 11, so that the bending motion between the supporting units 11 can affect the function of the bending shape of the whole supporting structure 10. Specifically, when each support unit 11 is in a flat state, the support structure 10 is in the plane, when a user bends one support unit 11 about the second direction D2 to be in a bent state, the portion of the support structure 10 formed by the other support units 11 on one side of the support unit 11 is tilted from the plane and forms a user-desired angle with the plane, and so on, when a plurality of support units 11 are controlled by the user to be bent, the whole support structure 10 forms a user-desired shape, such as an arc shape (as shown in fig. 3), a wave shape (as shown in fig. 4), a right-angled shape (as shown in fig. 5), and so on. Through the supporting structure 10 of this embodiment 1, a user can control the supporting units 11 to bend, so as to obtain a desired shape of the supporting structure 10, and meanwhile, each section of the supporting units 11 in the supporting structure 10 has a rigid strength, so that each section of the supporting unit 11 does not generate a resilience force when the supporting structure 10 bends, and a mutually restricted resistance force is generated between two adjacent supporting units 11, so as to maintain the shape of the supporting structure 10 after being bent. The support structure 10 of the embodiment 1 is applied to a flexible screen, the flexible screen has higher redundancy when being bent, the flexible screen can be kept in the shape by the characteristic that the support structure 10 can keep the shape when being bent according to the requirements of users, the shape can be changed by bending the support structure 10 at any time according to different use environments and different carrier shapes, and the flexible screen can be applied to carriers in various use environments and various shapes. Preferably, the bending directions of two adjacent supporting units 11 may be the same or different, so as to realize the supporting structure 10 having various shapes as described above.
Referring to fig. 6, in the supporting structure 10 of the present embodiment 1, the supporting unit 11 includes two rotating arms 12 and a rotating shaft 13 connecting the two rotating arms 12, an axis X of the rotating shaft 13 extends along the second direction D2, and both the rotating arms 12 are rotatable about the axis X of the rotating shaft 13, together forming a base unit for bending the supporting unit 11 about the second direction D2. The axes X of the rotating shafts 13 of each supporting unit 11 are parallel to each other, and two adjacent supporting units 11 are connected to each other by the respective rotating arms 12 along the first direction D1. When the supporting unit 11 is in the flattened state, the two rotating arms 12 are respectively located at two sides of the rotating shaft 13 along the first direction D1; when the support unit 11 is in a bent state, the two rotating arms 12 are angled with respect to the rotating shaft 13. Referring to fig. 1 and 6, when the supporting structure 10 in fig. 1 is viewed from left to right, the right rotating arm 12 of the previous supporting unit 11 and the left rotating arm 12 of the next supporting unit 11 are connected together and do not rotate with each other, so that the right rotating arm 12 of the previous supporting unit 11 drives the left rotating arm 12 of the next supporting unit 11 to rotate together when rotating around the axis X of the rotating shaft 13, and at this time, if the next supporting unit 11 does not bend, the right rotating arm 12 of the next supporting unit 11 also rotates around the axis X of the rotating shaft 13 of the previous supporting unit 11, that is, as long as the next supporting unit 11 does not bend, the next supporting unit 11 rotates around the axis X of the rotating shaft 13 of the previous supporting unit 11, and the shape of the supporting structure 10 changes to form a curved shape; when one of the right support units 11 is bent, the right rotating arm 12 drives the right support unit 11 to rotate around the axis X of the rotating shaft 13 of the support unit 11, and so on, the support units 11 in each section of the support mechanism can be freely bent, thereby forming the shape of the support structure 10 desired by the user.
Referring to fig. 6, in the supporting structure 10 of the present embodiment 1, the rotating arm 12 of the supporting unit 11 includes a connecting member 14 and a supporting plate 15, one end of the connecting member 14 is connected to the rotating shaft 13 and can rotate about the axis X of the rotating shaft 13, the other end of the connecting member 14 is connected to the inner surface of the supporting plate 15 near the rotating shaft 13, the outer surface of the supporting plate 15 for connecting to the supporting plate 15 of the adjacent supporting unit 11 is parallel to the axis X, so that when the support structure 10 is bent, the interaction force between the support plate 15 of the bent support unit 11 and the support plate 15 of the adjacent support unit 11 can be kept perpendicular to the axis X, and compared to the embodiment in which the outer surface of the support plate 15 is not parallel to the axis X, the embodiment in which the outer surface of the embodiment 1 is parallel to the axis X can avoid the generation of a rotation moment at the connection of the outer surfaces of the two support plates 15 affecting the structural strength of the entire support structure 10 after bending. Specifically, the two rotating arms 12 respectively disposed at two sides of the rotating shaft 13 along the first direction D1 have substantially the same structure, wherein the supporting plate 15 is a flat plate with certain hardness, extends along the second direction D2, and has a length that is not designed to be very long, and basically as long as the length can prevent the flexible screen from bending downward, the outer surface of the supporting plate 15 refers to a surface facing the rotating shaft 13 of the adjacent supporting unit 11 and being closely connected with the supporting plate 15 of the rotating arm 12 of the adjacent supporting unit 11, the inner surface of the supporting plate 15 refers to a surface facing the rotating shaft 13 of the supporting unit 11 relative to the outer surface, and the connecting member 14 mounted on the inner surface plays a role in connecting the supporting plate 15 and the rotating shaft 13 together and driving the supporting plate 15 to rotate around the axis X of the rotating shaft 13. The connecting member 14 is a rigid structure and is connected with the supporting plate 15 into a whole, but the connecting member 14 and the rotating shaft 13 can be connected together in a fixed manner or in a movable manner that the connecting member 14 is sleeved on the rotating shaft 13 and rotates around the axis X of the rotating shaft 13. When the supporting unit 11 is bent, the rotating shaft 13 rotates to drive the connecting member 14 to rotate around the axis X of the rotating shaft 13, and then the supporting plate 15 and the adjacent supporting unit 11 connected with the supporting plate 15 are driven, and the angle between the two connecting members 14 of the supporting unit 11 with respect to the rotating shaft 13 is less than 180 °. The damping member between the connection member 14 and the rotation shaft 13 for controlling the bending of the support unit 11 at a certain angle enables the two rotating arms 12 of the support unit 11 to be bent to a desired angle without further bending or reverse rotation, i.e., the damping member functions as a temporary lock or latch, which enables a user to avoid the problem of unstable shape of the flexible screen after bending the flexible screen to a desired angle using the support structure 10.
Referring to fig. 6, further, in the supporting unit 11, the connecting member 14 of each rotating arm 12 includes two connecting lugs 16, and the two connecting lugs 16 of one rotating arm 12 are located between the two connecting lugs 16 of the other rotating arm 12 along the second direction D2. Particularly, the part of engaging lug 16 and the internal surface of backup pad 15 are connected is the rectangular plate shape, strengthen the joint strength between engaging lug 16 and the backup pad 15, engaging lug 16 connects the part on pivot 13 for semicircle plate shape, avoid support element 11 the rotation of backup pad 15 when taking place the wide-angle bending problem that is blockked by engaging lug 16 that has the edges and corners, the bend angle of support element 11 has been increased, also make the bearing structure 10 after the bending can not take place because of the crooked convex sharp edges and corners of engaging lug 16 influence the handheld problem of using experience of user. In the pair of engaging lugs 16 and the other pair of engaging lugs 16 closer to the two ends of the rotating shaft 13 in the second direction D2, at least one pair of engaging lugs 16 is limited in the second direction D2 when the rotating shaft 13 is connected, that is, the rotating shaft 13 drives the pair of engaging lugs 16 to be free from displacement in the second direction D2 when rotating, and the engaging lugs 16 may be engaged with the grooves or limiting tables designed on the rotating shaft 13, so as to prevent the two rotating arms 12 from sliding along the rotating shaft 13 in the second direction D2, which affects the problem that the user bends the flexible screen using the supporting structure 10. In addition, the two rotating arms 12 of the supporting unit 11 cannot be displaced relatively in the second direction D2, which puts requirements on the positions of the pair of engaging lugs 16 of the rotating arms 12 respectively connected to the rotating shaft 13, in this embodiment 1, the two engaging lugs 16 closer to the two ends of the rotating shaft 13 in the second direction D2 should be fixedly connected to the rotating shaft 13 and cannot rotate relatively to each other, the pair of engaging lugs 16 fixed to the rotating shaft 13 limits the possible displacement of the other pair of engaging lugs 16 in the second direction D2, and the other pair of engaging lugs 16 can be fixedly connected to the rotating shaft 13 or movably connected to the rotating shaft, but cannot be displaced relatively to the rotating shaft 13 in the second direction D2.
Referring to fig. 6, further, in the supporting unit 11, the two engaging lugs 16 closer to the same end of the rotating shaft 13 in the second direction D2 are fitted to each other without relative displacement in the second direction D2. As described in the above section, each of the two rotating arms 12 has two engaging lugs 16, and each of the two engaging lugs 16 of each rotating arm 12 is close to one end of the rotating shaft 13 in the second direction D2, and the two engaging lugs 16 close to the same end of the rotating shaft 13 but belonging to different rotating arms 12 are attached together, but can rotate relatively with the rotating shaft 13 around the axis X of the rotating shaft 13, so as to function to bend the supporting unit 11.
Referring to fig. 6, further, the supporting unit 11 further includes a driving member 17, and the driving member 17 is connected to the at least one rotating arm 12. In particular, the swivel arm 12 can be bent only by mechanical means, or can be bent by an externally provided drive 17. In the case of connecting the external driving member 17 to the rotating arm 12, the user can control the rotating arm 12 to rotate about the axis X of the rotating shaft 13 by controlling the driving member 17. The driving member 17 can be mounted on one of the rotary arms 12, which can save cost while realizing bending of the supporting unit 11, and the driving member 17 can also be mounted on two rotary arms 12, which is more favorable for the user to control the rotation angle of the rotary arms 12.
Referring to fig. 6, further, in the supporting unit 11, the driving member 17 is provided at least one of two shaft ends of the rotating shaft 13 in the second direction D2. Specifically, the driving member 17 may be connected to one of the connecting lugs 16 of the rotating arm 12 by being sleeved on the shaft end of the rotating shaft 13, and the rotating arm 12 is provided with a rotating torque about the axis X of the rotating shaft 13 through mechanical control or electrical control, so as to realize the rotation control of the rotating arm 12 by the driving member 17. The driving member 17 can also be directly mounted at the shaft end of the rotating shaft 13 and then connected to the connecting lug 16 of the rotating arm 12 through a mechanical connection structure, and the rotating arm 12 is provided with a rotating moment about the axis X of the rotating shaft 13 through mechanical control or electrical control, so that the rotating arm 12 is controlled by the driving member 17 to rotate.
In accordance with the above description, the user may control the rotation of the swing arm 12 either mechanically or electrically. The drive element 17 can therefore preferably be designed as a motor which is fitted on the shaft end of the rotary shaft 13. The motor may be a linear motor, a stepping motor, a variable frequency motor, a direct current motor, etc., and the size of each supporting unit 11 constituting the supporting structure 10 is not large, so in the supporting structure 10 of this embodiment 1, the motor is a micro motor.
Referring to fig. 7 and 8, in the supporting unit 11, corresponding helical gear members 18 are respectively provided on the surface of the rotating shaft 13 at the junctions with the respective connecting members 14 of the two rotating arms 12, at least one of the helical gear members 18 is rotatable about the axis X of the rotating shaft 13, and the connecting members 14 are engaged with the rotating shaft 13 through the helical gear members 18. Specifically, the helical gear member 18 is a portion that is disposed on the rotating shaft 13, and the helical gear member 18 may or may not rotate relative to the rotating shaft 13, and when the user controls the rotating arm 12 to rotate around the axis X of the rotating shaft 13 through mechanical or electrical control of the driving member 17 or through other means or mechanisms, the helical gear member 18 will also rotate around the axis X of the rotating shaft 13. The helical gear 18 can be designed to rotate together with the shaft 13 or can be designed to rotate about its axis X relative to the shaft 13. Corresponding to the helical gear 18, the surface of each of the connecting members 14 (such as the connecting lug 16 described above) of the rotating arm 12 connected to the rotating shaft 13 is designed with a groove structure 19 so that the groove structure 19 can be engaged with the helical gear 18, when the user controls the driving member 17 to control the rotating arm 12 to rotate, if the connecting member 14 is fixed to the rotating shaft 13, the helical gear 18 is designed on the rotating shaft 13, the rotating arm 12 provides a rotating torque to the helical gear 18 so that the rotating arm 12, the helical gear 18 and the rotating shaft 13 rotate together around the axis X, and if the connecting member 14 and the rotating shaft 13 can rotate relatively, the helical gear 18 can also rotate relative to the rotating shaft 13, and the rotating arm 12 provides a rotating torque to the helical gear 18 so that the rotating arm 12 and the helical gear 18 rotate together around the axis X relative to the rotating shaft 13. In addition, whether the rotating arm 12 is fixedly connected and relatively immovable relative to the rotating shaft 13, the helical tooth members 18 corresponding to two connecting members 14 (such as the connecting lugs 16 described above) that are attached to each other are adjacently arranged, the size and the inclined direction of the teeth in the same helical tooth member 18 are the same, and during the rotation of the rotating arm 12, if the teeth of two adjacent helical tooth members 18 are aligned, an inclined passage occurs between two adjacent teeth, and the interaction force between two adjacent connecting members 14 tends to drive the two connecting members 14 to displace along the passage through the passage. Therefore, in order to avoid the above problem, the oblique teeth 18 of the two rotating arms 12 corresponding to the connecting pieces 14 have different tooth inclination directions, so that the moment directions of the connecting pieces 14 between the two teeth of the oblique teeth 18 are opposite, and the two rotating arms 12 can be prevented from being displaced in the first direction D1.
Example 2
Embodiment 2 of the present application discloses a flexible display device, which can be applied to various use scenes, such as large screen display, a curled screen, a folded screen, and the like, by using the support structure 10 disclosed in embodiment 1 of the present application as a support member and a shape change member.
As shown in fig. 9, the flexible display device of the present embodiment 2 includes a flexible screen 20, a buffer layer 30, and a support structure 10. The flexible screen 20 includes a display surface 21 for displaying and a backlight surface 22 disposed opposite to the display surface 21, the buffer layer 30 is mounted on the backlight surface 22, and the support structure 10 is mounted on a surface of the buffer layer 30 opposite to the backlight surface 22. Specifically, the flexible panel 20 may be made of an OLED (Organic light emitting semiconductor) material, the buffer layer 30 may be made of a glue material, the support structure 10 may be made of a rigid material as described in embodiment 1, and the buffer layer 30 may bond the support structure 10 and the flexible panel 20, while ensuring the flatness of the bending surface of the flexible panel 20 when the flexible panel is bent. The flexible screen 20, the buffer layer 30 and the support structure 10 form a three-layer combined structure, and the bending of the flexible screen 20 at any angle is realized through the bending characteristics and functions of the support structure 10 disclosed in this embodiment 1, and a user can control the flexible screen 20 to form any desired shape, so that the flexible display device can be widely applied to various application scenes.
As shown in fig. 10, in the flexible display device of the present embodiment 2, the support structure 10 is mounted on at least one of two opposite sides in the flexible screen 20. Specifically, when viewed from the front view of the backlight surface 22 of the flexible display 20, the supporting structure 10 is not laid on the whole backlight surface 22, but is disposed at the side of the backlight surface 22, so as not to affect the image projected by the display module onto the display surface 21 in the flexible display device. It should be noted that the arrangement direction of the support structures 10 at the side of the backlight surface 22 (i.e. the first direction D1 described in embodiment 1) may be parallel to the horizontal side or the vertical side of the display screen in the display surface 21, and the selection of whether the arrangement direction of the support structures 10 is parallel to the horizontal side or the vertical side when designing the flexible display device depends on the placement scene of the flexible display device and the stretching direction of the flexible screen 20, for example, in the scene of stretching the flexible screen 20 up and down, the arrangement direction of the support structures 10 should be parallel to the vertical side of the display screen.
As shown in fig. 11, in the flexible display device of this embodiment 2, a receiving device 40 is further included, and the flexible screen 20, the buffer layer 30 and the support structure 10 are fixedly connected to the receiving device 40 at one end. When the flexible display device is displayed, the flexible screen 20 and the support structure 10 simultaneously extend out of the receiving device 40, and the support structure 10 is the structure disclosed in embodiment 1, as shown in an enlarged portion in fig. 11. When the flexible display device is not displayed, the flexible screen 20 and the support structure 10 are received in the receiving device 40. The flexible display device adopting the storage device 40 can be conveniently carried and stored by a user, can save the space in a home as a household appliance, and makes the environment more tidy and atmosphere. Meanwhile, when the flexible display device is not used, the flexible screen 20 can be protected from being damaged and dust can not be accumulated, and the cleaning burden of a user is reduced.
As shown in fig. 12, in the flexible display device of the present embodiment 2, when the flexible panel 20 and the support structure 10 are received in the receiving device 40, the flexible panel 20 is made to take a curled shape by the curling of the support structure 10. The flexible screen 20 and the support structure 10 can be rolled into the storage device 40 when the flexible display device is not used for displaying, the flexible screen 20 and the support structure 10 simultaneously extend out of the storage device 40 when the flexible display device is used for displaying, the flexible screen 20 can be bent into a curved surface by rotating each support unit of the support structure 10 around its rotation axis, and the support structure 10 is the structure disclosed in embodiment 1, as shown in an enlarged part in fig. 12.
As shown in fig. 13, in the flexible display device of this embodiment 2, the flexible display device further includes a housing 50, the housing 50 has a guide rail 51 and a stop block 52, the guide rail 51 is disposed on two sides of the housing 50 along the second direction D2, the stop block 52 is disposed on one end of the guide rail 51 along the first direction D1, the flexible screen 20 is movably mounted in the housing 50, the support structure 10 is movably mounted in the guide rail 51 on two sides of the housing 50, the support structure 10 can slide along the guide rail 51 in the first direction D1 to extend and retract the flexible screen 20, and the support structure 10 can be stopped by the stop block 52, and the support structure can be bent and bend with the flexible screen 20. Specifically, the support structure 10 described in embodiment 1 above extends along the first direction D1, and therefore the guide rail 51 of the housing 50 in fig. 12 also extends along the first direction D1, and the guide rail 51 on both sides of the housing 50 has a closed end and an open end. When the support structure 10 is retracted in the guide 51, the flexible screen 20 is retracted in the housing 50, and the support structure 10 may be folded or collapsed by bending the flexible screen 20, at which time the support structure 10 is retracted to the bottom to the closed end of the guide 51. When the supporting units of the supporting structure 10 are controlled to slide along the guide rail 51 along the first direction D1 to slide the flexible screen 20 together, the flexible screen 20 can be stopped at any position and can also be completely unfolded out of the outer shell 50, at this time, the flexible screen 20 is transversely unfolded to increase the screen size, the supporting structure 10 is unfolded to the open end of the guide rail 51 and locked by the stop block 52, at this time, the supporting structure 10 does not continue to slide along the first direction D1 and can rotate around the stop block 52, and a user can control the bending of the supporting units of the supporting structure 10, so that the supporting structure 10 can bend inwards or outwards at any angle relative to the guide rail 51 with the flexible screen 20, and the supporting structure 10 is the structure disclosed in embodiment 1, as shown in the enlarged part in fig. 13.
The supporting structure and the flexible display device for the flexible screen disclosed by the embodiment of the application make the whole supporting structure have high redundancy through the design of a plurality of sections of supporting units, can be bent and fixed at an angle required by a user according to the requirement of the user, and the user can control the supporting structure to drive the flexible screen to unfold or curl through a manual mode and a micro motor.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (16)
1. A support structure for a flexible screen, the support structure comprising a plurality of support units connected together in series along a first direction, the support units extending along a second direction perpendicular to the first direction, the support units being bendable about the second direction.
2. The support structure for a flexible screen according to claim 1, wherein the support unit comprises two rotating arms and a rotating shaft connecting the two rotating arms, an axis of the rotating shaft extends in the second direction, and both the two rotating arms are rotatable around the axis of the rotating shaft;
the axes of the rotating shaft of each supporting unit are parallel to each other, and two adjacent supporting units are connected together through respective rotating arms along the first direction;
when the supporting unit is in a flattening state, the two rotating arms are respectively positioned at two sides of the rotating shaft along the first direction;
the two rotating arms are angled with respect to the rotating shaft when the supporting unit is in a bent state.
3. The support structure for a flexible screen according to claim 2, wherein in the support unit, the rotating arm includes a connecting member and a support plate, one end of the connecting member is connected to the rotating shaft and can rotate around the axis of the rotating shaft, the other end of the connecting member is connected to an inner surface of the support plate near the rotating shaft, and an outer surface of the support plate for connecting to the support plate of the adjacent support unit is parallel to the axis.
4. A support structure for a flexible screen according to claim 3, wherein in the support unit, the connecting member of each of the rotary arms includes two engaging lugs, and in the second direction, the two engaging lugs of one of the rotary arms are located between the two engaging lugs of the other rotary arm.
5. The support structure for a flexible screen according to claim 4, wherein in the support unit, two engaging lugs closer to the same end of the rotary shaft in the second direction are fitted to each other without relative displacement in the second direction.
6. The support structure for a flexible screen of claim 2, wherein the support unit further comprises a drive member connected to at least one of the swivel arms.
7. A support structure for a flexible screen according to claim 6, wherein the drive member is provided at least one of two axial ends of the rotary shaft in the second direction.
8. The support structure for the flexible screen of claim 7, wherein the driving member is a motor fitted around the shaft end of the rotation shaft.
9. A support structure for a flexible screen according to claim 3, wherein corresponding skewed tooth members are provided on the surface of the shaft at the connection with the respective connecting members of the two arms, at least one of the skewed tooth members being rotatable about the axis of the shaft, the connecting members being snap-fitted to the shaft via the skewed tooth members.
10. A support structure for a flexible screen according to claim 9, wherein the coupling members of the two arms are provided with angled teeth having different directions of inclination.
11. The support structure for a flexible screen according to claim 1, wherein the bending directions of two adjacent support units may be the same or different.
12. A flexible display device comprising a flexible screen, a buffer layer and a support structure according to any one of claims 1 to 11;
the flexible screen comprises a display surface used for displaying and a backlight surface arranged opposite to the display surface, the buffer layer is installed on the backlight surface, and the supporting structure is installed on the surface, opposite to the backlight surface, of the buffer layer.
13. The flexible display device of claim 12, wherein the support structure is mounted on at least one of two opposing sides of the flexible screen.
14. The flexible display device according to claim 12 or 13, further comprising a receiving device, wherein the flexible screen, the buffer layer and the support structure are fixedly connected at one end in the receiving device; when the flexible display device displays, the flexible screen and the supporting structure simultaneously extend out of the accommodating device; when the flexible display device is not displaying, the flexible screen and the support structure are received in the receiving device.
15. The flexible display device of claim 14, wherein the flexible screen is caused to curl by curling of the support structure when the flexible screen and the support structure are received in the receiving device.
16. The flexible display device of claim 13, further comprising a housing having a rail disposed on both sides of the housing along the second direction and a stop disposed on the rail at an end along the first direction, wherein the flexible screen is movably mounted in the housing, wherein the support structure is movably mounted in the rail on both sides of the housing, wherein the support structure is slidable along the rail in the first direction to extend and retract the flexible screen, and wherein the support structure is lockable by the stop and can bend around the stop and bend the flexible screen.
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| CN202110947118.5A CN113639162A (en) | 2021-08-18 | 2021-08-18 | Support structure for flexible screen and flexible display device |
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| CN202110947118.5A CN113639162A (en) | 2021-08-18 | 2021-08-18 | Support structure for flexible screen and flexible display device |
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