CN113645331A - Foldable display device - Google Patents
Foldable display device Download PDFInfo
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- CN113645331A CN113645331A CN202110925077.XA CN202110925077A CN113645331A CN 113645331 A CN113645331 A CN 113645331A CN 202110925077 A CN202110925077 A CN 202110925077A CN 113645331 A CN113645331 A CN 113645331A
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- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application provides a foldable display device, which comprises a flexible display screen, at least two bearing bodies and at least one folding device, wherein the at least one folding device is positioned between the two adjacent bearing bodies. The flexible display screen comprises at least two fixed parts and at least one bendable part positioned between the two adjacent fixed parts, and the fixed parts are arranged on the corresponding bearing machine bodies. The folding device comprises a first rotating structure, a second rotating structure, a transmission part and a damping structure, wherein the transmission part is used for driving at least one of the first rotating structure and the second rotating structure to rotate when the angle of the plane where two adjacent bearing machine bodies are located changes; the damping structure is used for applying damping when the first rotating structure and the second rotating structure rotate relatively. In the embodiment of the application, the foldable display device can be folded between 0 degrees and 360 degrees, the folding process is relatively smooth by utilizing the damping effect of the damping structure, and the service life of the foldable display device is prolonged.
Description
[ technical field ] A method for producing a semiconductor device
The application relates to the technical field of display, in particular to a foldable display device.
[ background of the invention ]
The flexible display screen has the characteristics of being capable of being bent at will, being light and thin in material, saving energy and electricity and the like, and along with the development of the flexible display screen technology, the flexible display screen equipment becomes mainstream equipment in the current display technical field.
The current technical solution is to drive the folding of the flexible display screen through a hinge structure in the folding electronic device. However, in the electronic devices (mobile phones, tablet computers, notebook computers, wearable devices, etc.) using the flexible display screen at present, the used hinge structure can only realize unidirectional folding of the flexible display screen, cannot realize bidirectional folding of the flexible display screen, and does not fully exert the advantages of the flexible display screen.
[ application contents ]
In view of the above, embodiments of the present application provide a foldable display device to solve the above problems.
The embodiment of the application provides a foldable display device, which comprises a flexible display screen, at least two bearing bodies and at least one folding device. The flexible display screen comprises at least two fixed parts and at least one bendable part, wherein the bendable part is positioned between the two adjacent fixed parts; the at least two bearing machine bodies and the at least two fixing parts are arranged in one-to-one correspondence, and the fixing parts are arranged on the corresponding bearing machine bodies; the folding device is positioned between two adjacent bearing machine bodies; the folding device comprises a first rotating structure, a second rotating structure, a transmission part and a damping structure, wherein the first rotating structure and the second rotating structure are respectively and fixedly connected with two adjacent bearing machine bodies; two ends of the transmission part are respectively and fixedly connected with the two adjacent bearing machine bodies, and the transmission part is used for driving at least one of the first rotating structure and the second rotating structure to rotate when the angle of the plane where the two adjacent bearing machine bodies are located changes; the two ends of the damping structure are respectively connected with the first rotating structure and the second rotating structure, and the damping structure is used for applying damping to the first rotating structure and the second rotating structure when the first rotating structure and the second rotating structure rotate relatively.
In this application embodiment, utilize the driving medium among the folding device to drive first rotating-structure and/or second rotating-structure relative motion, make the planar angle in two at least fixed parts place in the flexible display screen can alternate between 0 to 360, utilize the damping that the damping structure applyed when relative motion to first rotating-structure and second rotating-structure simultaneously, make the planar angle in two at least fixed parts places in the flexible display screen can keep relatively gentle when the transform, when realizing the two-way folding of foldable display device, foldable display device's life has been improved again.
[ 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 schematic structural diagram of a foldable display device according to an embodiment of the present application;
fig. 2 is a schematic view of a flexible display screen provided in an embodiment of the present application;
FIG. 3 is a schematic view of a folding apparatus of the type to which the present application is directed;
FIG. 4 is a schematic view of a foldable display device in a folded state;
FIG. 5 is a schematic view of another foldable display device in a folded state;
FIG. 6 is a schematic view of a foldable display device in a further folded state;
FIG. 7 is a schematic view of a foldable display device in a further folded state;
FIG. 8 is a schematic view of a foldable display device in a further folded state;
FIG. 9 is a schematic view of the damping structure of FIG. 3;
fig. 10 is a schematic view of another foldable display device provided in an embodiment of the present application.
[ 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.
In the description herein, it is to be understood that the terms "substantially", "approximately", "about", "substantially", and the like, as used in the claims and the examples herein, are intended to be generally accepted as not being precise, within the scope of reasonable process operation or tolerance.
It should be understood that although the terms first, second, etc. may be used in the embodiments of the present application to describe the rotating structure, the hinge, the damper tube, etc., these rotating structure, hinge, damper tube, etc. should not be limited to these terms. These terms are only used to distinguish rotating structures, hinges, damper tubes, etc. from one another. For example, the first rotating structure may also be referred to as a second rotating structure, and similarly, the second rotating structure may also be referred to as a first rotating structure, without departing from the scope of the embodiments of the present application.
The applicant provides a solution to the problems of the prior art through intensive research.
Fig. 1 is a schematic structural diagram of a foldable display device according to an embodiment of the present application; fig. 2 is a schematic view of a flexible display screen according to an embodiment of the present application.
As shown in fig. 1, an embodiment of the present application provides a foldable display device 001, which includes a flexible display screen 01, at least two carrier bodies 02, and at least one folding device 03; as shown in fig. 2, the flexible display screen 01 includes at least two fixed portions 11 and at least one bendable portion 12, wherein the bendable portion 12 is located between two adjacent fixed portions 11. It should be noted that, although fig. 1 and fig. 2 only illustrate that the flexible display screen 01 includes two fixed portions 11 and one bendable portion 12, in an actual product, the flexible display screen 01 may include more than two fixed portions 11 and more than two bendable portions 12, and each bendable portion 12 is located between two adjacent fixed portions 11. In one implementation provided in the embodiment of the present application, the bendable portions 12 are respectively connected to two adjacent fixing portions 11.
With continued reference to fig. 1, in the embodiment of the present application, at least two carrier bodies 02 are disposed in one-to-one correspondence with at least two fixed portions 11, and the fixed portions 11 are disposed on the corresponding carrier bodies 02, that is, in the foldable display device 001, each fixed portion 11 is disposed on one carrier body 02 disposed corresponding thereto, and the carrier bodies 02 are used for supporting the fixed portions 11. In the embodiment of the present application, the folding devices 03 are located between two adjacent carrying bodies 02, that is, at least one folding device 03 is covered by the bendable portion 12 included in the flexible display 01 along the thickness direction of the foldable display 001.
The folding device 03 comprises a first rotating structure 31, a second rotating structure 32, a transmission member 33 and a damping structure 34; the first rotating structure 31 and the second rotating structure 32 are respectively fixedly connected to two adjacent bearing bodies 02, that is, the first rotating structure 31 is fixedly connected to one of the two adjacent bearing bodies 02, and the second rotating structure 32 is fixedly connected to the other of the two adjacent bearing bodies 02. Two ends of the transmission member 33 are respectively and fixedly connected with the two adjacent bearing machine bodies 02, that is, one end of the transmission member 33 is fixedly connected with one of the two adjacent bearing machine bodies 02, and the other end of the transmission member 33 is fixedly connected with the other of the two adjacent bearing machine bodies 02; the transmission member 33 is used for driving at least one of the first rotating structure 31 and the second rotating structure 32 to rotate when the angle of the plane where the two adjacent bearing machine bodies 02 are located changes.
In an implementation manner of the embodiment of the present application, when the angles of the planes where the two adjacent bearing bodies 02 are located change, the transmission member 03 drives the first rotating structure 31 to rotate, and does not drive the second rotating structure 32 to rotate.
In another implementation manner of the embodiment of the present application, when an angle of a plane where two adjacent bearing bodies 02 are located changes, the transmission member 03 drives the second rotating structure 32 to rotate without driving the first rotating structure 31 to rotate.
In another implementation manner of the embodiment of the present application, when an angle of a plane in which two adjacent bearing bodies 02 are located changes, the transmission member 03 drives the first rotating structure 31 and the second rotating structure 32 to rotate together. Alternatively, in the embodiment of the present application, the transmission member 03 drives the first rotating structure 31 and the second rotating structure 32 to rotate together, and the rotating directions of the first rotating structure 31 and the second rotating structure 32 are opposite.
Referring to fig. 1, two ends of the damping structure 34 are respectively connected to the first rotating structure 31 and the second rotating structure 32, that is, one end of the damping structure 34 is connected to the first rotating structure 31, and the other end is connected to the second rotating structure 32. The damping structure 34 is used for damping the first rotating structure 31 and the second rotating structure 32 when the first rotating structure 31 and the second rotating structure 32 move relatively. In the embodiment of the present application, by using the damping structure 34 to apply damping to the relative movement between the first rotating structure 31 and the second rotating structure 32, the relative movement rate between the first rotating structure 31 and the second rotating structure 32 can be effectively controlled, so that the movement process between the first rotating structure 31 and the second rotating structure 32 is relatively smooth, and the service life of the foldable display device 001 is prolonged.
Specifically, in the process of folding the foldable display device 001 toward the backlight surface of the flexible display screen 01, the first rotating structure 31 and the second rotating structure 32 drive the damping structure 34 to move, so that the damping structure 34 is shortened. At this moment, damping structure 34 exerts the damping to first rotating-structure 31 and second rotating-structure 32, avoids damping structure 34 to shorten too fast to avoid first rotating-structure 31 and second rotating-structure 32 relative motion too fast, effectively avoid two adjacent violent bumps and the flexible display screen 01 of bearing weight of organism 02 to drag the risk of harm.
In the process that the foldable display device 001 is folded towards the light emitting surface of the flexible display screen 01, the first rotating structure 31 and the second rotating structure 32 drive the damping structure 34 to move, so that the damping structure 34 is extended. At this moment, the damping structure 34 applies damping to the first rotating structure 31 and the second rotating structure 32, and the damping structure 34 is prevented from extending too fast, so that the first rotating structure 31 and the second rotating structure 32 are prevented from moving too fast relatively, and the risk that the flexible display screen 01 is damaged due to severe collision of the two adjacent fixed portions 11 is effectively avoided.
In this embodiment, in the process of folding the foldable display device 001 toward the backlight surface of the flexible display screen 01, the transmission member 33 drives the first rotating structure 31 and the second rotating structure 32 to rotate, and the contact points of the transmission member 33 with the first rotating structure 31 and the second rotating structure 32 change to make the first rotating structure 31 and the second rotating structure 32 move in opposite directions. The opposite movement of the first rotating structure 31 and the second rotating structure 32 drives the damping structure 34 to gradually shorten, and finally, the planes of at least two adjacent bearing substrates 02 of the foldable display device 001 are parallel. In the process of folding the foldable display device 001 towards the light emitting surface of the flexible display screen 01, while the first rotating structure 31 and the second rotating structure 32 rotate, the contact points of the transmission member 33 with the first rotating structure 31 and the second rotating structure 32 change, so that the first rotating structure 31 and the second rotating structure 32 move back to back. The back-to-back movement of the first rotating structure 31 and the second rotating structure 32 drives the damping structure 34 to extend gradually, and finally, the planes of at least two adjacent bearing substrates 02 of the foldable display device 001 are parallel.
In the embodiment of the present application, the driving member 33 in the folding device 03 is used to drive the first rotating structure 31 and/or the second rotating structure 32 to move relatively, so that the angle of the plane where the at least two fixing portions 11 in the flexible display screen 01 are located can be changed between 0 ° and 360 °, and the damping structure 34 is used to damp the relative movement between the first rotating structure 31 and the second rotating structure 32, so that the angle of the plane where the at least two fixing portions 11 in the flexible display screen 01 are located can be kept relatively flat during the change, and while the foldable display device 001 is folded in two directions, the service life of the foldable display device 001 is prolonged.
It should be noted that the boundary between the fixed portion 11 and the adjacent bendable portion 12 in fig. 1 is for illustration only. In the thickness direction of the flexible display screen 01, the boundary between the fixed portion 11 and the adjacent bendable portion 12 may overlap with the folding device 03, may overlap with the carrier substrate 02, and may overlap with the boundary between the carrier substrate 02 and the folding device 03.
Fig. 3 is a schematic view of a folding device according to the present application.
In one embodiment of the present application, as shown in fig. 3, one end of the damping structure 34 is hinged with the first rotating structure 31 through a first hinge 35, and the other end of the damping structure 34 is hinged with the second rotating structure 32 through a second hinge 36; the central axis Y of the first hinge 35 is parallel to the rotation axis X of the first rotating structure 31, and the central axis Y 'of the second hinge 36 is parallel to the rotation axis X' of the second rotating structure 32. It should be noted that the first hinge 35 can rotate along its connection point with the first rotating structure 31, and the second hinge 36 can rotate along its connection point with the second rotating structure 32.
It should be further noted that the central axis Y of the first hinge 35 and the rotation axis X of the first rotating structure 31 may be parallel but not collinear, or parallel and collinear; the central axis Y 'of the second hinge 36 and the rotation axis X' of the second rotating structure 32 may be parallel but not collinear, or may be parallel and collinear.
In the embodiment of the present application, when the first rotating structure 31 rotates, the moving track of the first hinge 35 is concentric with the rotating track of the first rotating structure 31, and it can be understood that the center point of the rotating track of the first rotating structure 31 is located at the rotating axis X, and the center point of the moving track of the first hinge 35 is located at the rotating axis X, and at the same time, the damping structure 34 is driven to move up and down in a plane parallel to the vertical plane of the rotating axis X; when the second rotating structure 32 rotates, the moving track of the second hinge 36 is concentric with the moving track of the second rotating structure 32, and it can be understood that the center point of the rotating track of the second rotating structure 32 is located at the rotating axis X ', and the center point of the moving track of the second hinge 36 is located at the rotating axis X ', and the damping structure 34 is driven to move up and down in a plane parallel to the vertical plane of the rotating axis X '. It should be noted that the rotation axis X of the first rotating structure 31 and the rotation axis X' of the second rotating structure 32 are parallel to each other.
Further, when the first rotating structure 31 and the second rotating structure 32 rotate towards the flexible display screen 01 or rotate away from the flexible display screen 01 at the same time, the direction in which the first rotating structure 31 drives the damping structure 34 to move in a plane parallel to the vertical plane of the rotation axis X is the same as the direction in which the second rotating structure 32 drives the damping structure 34 to move in a plane parallel to the vertical plane of the rotation axis X.
At collapsible display device 001 towards the folding in-process of flexible display screen 01 shady face direction, first rotating-structure 31 and second rotating-structure 32 drive damping structure 34 motion, make the length grow that damping structure 34 shortens, just make two distances between two relative tip shorten in the bearing machine body 02 promptly, then can not tighten between the both ends of driving medium 33, and then can buckle part 12 in the flexible display screen 01 of avoiding driving medium 33 top and excessively be dragged, the life of flexible display screen 01 has been improved.
In the process that the foldable display device 001 is folded towards the light emitting surface of the flexible display screen 01, the first rotating structure 31 and the second rotating structure 32 drive the damping structure 34 to move, so that the extended length of the damping structure 34 is increased, that is, the distance between two opposite end portions of the two carrying bodies 02 is increased. When two adjacent fixed parts 11 of the flexible display screen 01 are in contact, the damping structure 34 is gradually folded with the bendable part 12 of the flexible display screen 01 by increasing the width of the bottom (damping structure 34) in the cavity formed by the first rotating structure 31 and the second rotating structure 32, so that excessive extrusion of the flexible display screen 01 is effectively avoided, and the service life of the flexible display screen 01 is prolonged.
Referring to fig. 3, in an embodiment of the present application, the first rotating structure 31 rotates to drive the first hinge 35 to move in an arc shape, and the second rotating structure 32 rotates to drive the second hinge 36 to move in an arc shape.
In one embodiment of the present application, with continued reference to fig. 3, the central axis Y of the first hinge 35 is parallel to and non-collinear with the rotation axis X of the first rotating structure 31, and the central axis Y 'of the second hinge 36 is parallel to and non-collinear with the rotation axis X' of the second rotating structure 32. Then, the motion trajectory of the first hinge 35 is concentric with the motion trajectory of the first rotating structure 31, and the arc length of the motion trajectory of the first hinge 35 is greater than the arc length of the motion trajectory of the first hinge 35 when the central axis Y of the first hinge 35 is parallel and collinear with the rotation axis X of the first rotating structure 31; the second hinge 36 has a motion path that is concentric with the motion path of the second rotating structure 32, and the second hinge 36 has a motion path with an arc length that is greater than the arc length of the motion path of the second hinge 36 when the central axis Y 'of the second hinge 36 is parallel to and collinear with the axis X' of rotation of the second rotating structure 32.
In the process of folding the foldable display device 001 toward the backlight surface of the flexible display screen 01, the shortened length of the damping structure 34 can be further increased, that is, the distance between two opposite ends of the two carrying bodies 02 is shorter, so as to avoid the bendable portion 12 above the transmission member 33 from being excessively pulled. In the process that the foldable display device 001 is folded towards the light emitting surface of the flexible display screen 01, the length of the damping structure 34 can be further increased, namely, the distance between two opposite end parts in the two bearing bodies 02 is longer, so that the bendable part 12 of the flexible display screen 01 can be more smoothly folded, and the flexible display screen 01 can be more effectively prevented from being excessively extruded.
Fig. 4 is a schematic view showing a structure of a foldable display device in one folding state, fig. 5 is a schematic view showing a structure of a foldable display device in another folding state, fig. 6 is a schematic view showing a structure of a foldable display device in yet another folding state, and fig. 7 is a schematic view showing a structure of a foldable display device in yet another folding state; fig. 8 is a schematic view of a foldable display device in a further folded state.
In one embodiment of the present application, as shown in fig. 3, the first hinge 35 and the second hinge 36 are each a damping hinge, and the resistance of the first hinge 35 and the second hinge 36 is greater than the rebound force of the damping structure 34. When the foldable display device 001 is in a folded state, since the resilience of the damping structure 34 is smaller than the resistances of the first hinge 35 and the second hinge 36, the damping structure 34 does not drive the first rotating structure 31 and the second rotating structure 32 to rotate, so that the foldable display device 001 can maintain the current folded state. That is, the included angle between the planes of the at least two fixing portions 11 in the flexible display screen 01 can be maintained at any angle between 0 ° and 360 °.
For example, as shown in fig. 4, the angle between the planes of the two fixing portions 11 may be maintained at approximately 0 °; it should be noted that the included angle between the planes of the two fixing portions 11 in fig. 4 is only used to illustrate the fitting degree of the two fixing portions 11. In an actual product, the two fixing portions 11 may be completely attached or partially attached. As shown in fig. 4, the portions of the two fixing portions 11 far from the folding device 03 are attached to each other, so as to avoid the flexible display screen 01 from being excessively compressed.
As shown in fig. 5, the angle between the planes of the two fixing portions 11 can be maintained at 60 °; as shown in fig. 6, the angle between the planes of the two fixing portions 11 can be maintained at 180 °; as shown in fig. 7, the angle between the planes of the two fixing portions 11 can be maintained at 300 °; as shown in fig. 8, the angle between the planes of the two fixing portions 11 can be maintained at 360 °.
Referring to fig. 1 and 3, in an embodiment of the present application, the transmission member 33 is a chain, the first rotating structure 31 includes a gear 312, and the second rotating structure 32 includes a gear 322; the first rotary structure 31 is engaged with the transmission member 33 through the gear 312, and the second rotary structure 32 is engaged with the transmission member 33 through the gear 322. That is, when the foldable display device 001 is folded, the transmission member 33 rotates the first rotating structure 31 and/or the second rotating structure 32 through gear engagement. Alternatively, when the foldable display device 001 is folded, the transmission member 33 drives the first rotating structure 31 and the second rotating structure 32 to rotate simultaneously, and the rotating directions of the first rotating structure 31 and the second rotating structure 32 are opposite.
In this application embodiment, driving medium 33 is the chain, and the chain has not telescopic characteristic, and when collapsible display device 001 was folding, the chain can be fixed flexible display screen 01 in the length of part 12 of can buckling, avoided the part 12 of can buckling to appear the overstretching condition, has effectively improved flexible display screen 01's stability, has improved the life of the display device 001 of can buckling simultaneously. In the embodiment of the present application, the gear 312 included in the first rotating structure 31 and the gear 322 included in the second rotating structure 32 cooperate with the transmission member 33 when the foldable display device 001 is folded, and can also function to support the foldable portion 12 and provide a movement space for the damping structure 34.
In an embodiment of the present application, please continue to refer to fig. 1 and 3, the first rotating structure 31 includes a first connecting member 311 and a second connecting member 313 that are perpendicular to each other, and the second rotating structure 32 includes a third connecting member 321 and a fourth connecting member 323 that are perpendicular to each other. One end of the first connecting piece 311 is fixedly connected with the bearing machine body 02, and the other end is fixedly connected with the second connecting piece 313; one end of the third connecting member 321 is fixedly connected to the bearing body 02, and the other end is fixedly connected to the fourth connecting member 323. One end of the second connecting member 313 is connected to the gear 312 of the first rotating structure 31, and the other end is hinged to one end of the damping structure 34; one end of the fourth connecting member 323 is connected to the gear 322 of the second rotating structure 32, and the other end is hinged to the other end of the damping structure 34.
In one embodiment of the present application, as shown in fig. 3, the gear rotation axis X of the first rotating structure 31 is collinear with the axis Z of the second connecting member 313, and the gear rotation axis X 'of the second rotating structure 32 is collinear with the axis Z' of the fourth connecting member 323. That is, the second connector 313 is a gear rotation shaft of the first rotating structure 31, and the fourth connector 323 is a gear rotation shaft of the second rotating structure 32.
With continued reference to fig. 3, in an embodiment of the present application, the damping structure 34 includes a first telescopic rod 341 and a second telescopic rod 342, and the telescopic directions of the first telescopic rod 341 and the second telescopic rod 342 are the same as the arrangement direction of the first rotating structure 31 and the second rotating structure 32. That is, the first telescopic rod 341 extends and contracts along the arrangement direction of the first rotating structure 31 and the second rotating structure 32, and the second telescopic rod 342 extends and contracts along the arrangement direction of the first rotating structure 31 and the second rotating structure 32. The end of the first telescopic rod 341 is hinged to the first rotating structure 31, and the end of the second telescopic rod 342 is hinged to the second rotating structure 32, that is, the damping structure 34 is hinged to the first rotating structure 31 via the first telescopic rod 341 and to the second rotating structure 32 via the second telescopic rod 342.
It should be noted that the telescopic action of the first telescopic rod 341 is the same as the telescopic action of the second telescopic rod 342, that is, when the first telescopic rod 341 is extended, the second telescopic rod 342 is extended; when the first telescopic rod 341 is shortened, the second telescopic rod 342 is shortened.
Optionally, the length of the first telescopic rod 341 is the same as the length of the second telescopic rod 342, the first telescopic rod 341 is extended or shortened synchronously with the second telescopic rod 342, so that the tension or pressure applied to the damping structure 34 is uniformly distributed on the first telescopic rod 341 and the second telescopic rod 342, the stress is uniformly applied, the service life of the folding device 03 is effectively prolonged, and the service life of the foldable display device is prolonged.
In one embodiment provided herein, with continued reference to fig. 3, the damping structure 34 includes a first damping tube 343 and a second damping tube 344, the first telescopic rod 341 and the second telescopic rod 342 are respectively disposed in the first damping tube 343 and the second damping tube 344, and the first damping tube 343 and the second damping tube 343 are fixed. That is, the first telescopic rod 341 is disposed in the first damping tube 343, and is telescopic in the first damping tube 343; the second telescopic rod 342 is disposed in the second damping tube 344, and is extended and contracted in the second damping tube 344.
In the embodiment of the present application, the first damping tube 343 is fixedly connected to the second damping tube 344, and is configured to fix a relative position of the first damping tube 343 and the second damping tube 344, prevent the first damping tube 343 and the second damping tube 344 from moving along a telescopic direction of the first telescopic rod 341 and the second telescopic rod 342, and connect components included in the folding device 03 into a whole.
It should be noted that the damping structure 34 may also include only one damping tube, the first telescopic rod 341 is disposed at one end of the damping tube, the second telescopic rod 342 is disposed at the other end of the damping tube, and the first telescopic rod 341 and the second telescopic rod 342 are extended or shortened simultaneously in the damping tube. Optionally, the extended length or the shortened length of the first telescopic rod 341 is the same as the extended length or the shortened length of the second telescopic rod.
Fig. 9 is a schematic view of the damping structure of fig. 3.
As shown in fig. 9, the extension length L1 of the first telescopic rod 341 refers to the length of the first telescopic rod 341 outside the first damping tube 343, and the extension length L2 of the second telescopic rod 342 refers to the length of the second telescopic rod 342 outside the second damping tube 344.
In an embodiment of the present application, referring to fig. 4, fig. 5, fig. 6 and fig. 9, in the process of folding the two adjacent fixing portions 11 toward the light exit surface, the contact points between the transmission member 33 and the first rotating structure 31 and the second rotating structure 32 in the folding device 03 are changed, so that the first rotating structure 31 and the second rotating structure 32 move back to back, and the first rotating structure 31 and the second rotating structure 32 drive the extending lengths L1 and L2 of the first telescopic rod 341 and the second telescopic rod 342 to gradually increase; that is, in the process of folding the foldable display device 001 toward the light exit surface, the extending length L1 of the first telescopic rod 341 gradually increases, and the extending length L2 of the second telescopic rod 342 gradually increases. Alternatively, the extension length L1 of the first telescopic rod 341 is always the same as the extension length of the second telescopic rod 342. Referring to fig. 5 to 9, in the process of folding the two adjacent fixing portions 11 back to the light exit surface, the contact points between the transmission member 33 of the folding device 03 and the first rotating structure 31 and the second rotating structure 32 are changed, so that the first rotating structure 31 and the second rotating structure 32 move towards each other. The first rotating structure 31 and the second rotating structure 32 drive the extension lengths L1 and L2 of the first telescopic rod 341 and the second telescopic rod 342 to gradually decrease. That is, in the process of folding the foldable display device 001 in the direction back to the light exit surface, the extending length L1 of the first telescopic rod 341 gradually decreases, and the extending length L2 of the second telescopic rod 342 gradually decreases. Alternatively, the extension length L1 of the first telescopic rod 341 is always the same as the extension length of the second telescopic rod 342.
It should be noted that, in the process of folding the foldable display device 001 toward the light exit surface, the first damping tube 343 and the second damping tube 344 move toward the direction away from the light exit surface; in the process of folding the foldable display device 001 back to the light exit surface, the first damping tube 343 and the second damping tube 344 move toward the light exit surface.
Fig. 10 is a schematic view of another foldable display device provided in an embodiment of the present application.
In one embodiment of the present application, as shown in fig. 10, an isolation protection layer 05 is disposed between the transmission member 33 and the flexible display screen 01. In this application, isolation protective layer 05 is used for protecting flexible display screen 01, avoids driving medium 33 and flexible display screen 01 direct contact, avoids damaging flexible display screen 01. Note that the insulating protective layer 05 is made of a flexible material.
In an embodiment of the present application, please refer to fig. 1 and fig. 10, the foldable display device 001 further includes at least one elastic protection sleeve 04, two ends of the elastic protection sleeve 04 are respectively fixedly connected to the two adjacent carrier bodies 02, and the elastic protection sleeve 04 is located on a side of the foldable display device 001 facing away from the flexible display screen. That is, in the thickness direction of the foldable display device 001, at least one elastic protection sleeve 04 is covered by the bendable portion 12 included in the flexible display screen 01. It should be noted that, in the foldable display device 001, each bendable portion 12 has an elastic protection sleeve 04 disposed corresponding to it. It should be noted that the elastic protection sleeve may be a flexible sheath in a wave shape. In the process that the foldable display device 001 is folded towards the light emitting surface of the flexible display screen 01, the elastic protection sleeve 04 is extended, and the problem that the backlight surface of the foldable display device 001 is broken due to stretching is solved. In the process that foldable display device 001 is folded towards the direction of the backlight surface of flexible display screen 01, elastic protection sleeve 04 contracts, and the problem that the backlight surface of foldable display device 001 is broken due to extrusion is avoided.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
the application provides a foldable display device, including flexible display screen, at least two bear the weight of organism and be located two adjacent at least one folding device who bears between the organism. The flexible display screen comprises at least two fixed parts and at least one bendable part positioned between the two adjacent fixed parts, and the fixed parts are arranged on the corresponding bearing machine bodies. The folding device comprises a first rotating structure, a second rotating structure, a transmission part and a damping structure, wherein the transmission part is used for driving at least one of the first rotating structure and the second rotating structure to rotate when the angle of the plane where two adjacent bearing machine bodies are located changes; damping structure is used for applying damping when rotating first revolution mechanic and second revolution mechanic relatively, utilize the driving medium among the folding device to drive first revolution mechanic and/or second revolution mechanic relative motion, make the planar angle in two at least fixed part place in the flexible display screen can alternate between 0 to 360, utilize damping structure to exert damping when rotating first revolution mechanic and second revolution mechanic relative motion simultaneously, make the planar angle in two at least fixed part places in the flexible display screen can keep relatively gentle when the transform, when realizing collapsible display device two-way folding, collapsible display device's life has been improved again.
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 scope of protection of the present application.
Claims (13)
1. A foldable display device, comprising:
the flexible display screen comprises at least two fixed parts and at least one bendable part, wherein the bendable part is positioned between two adjacent fixed parts;
the at least two bearing machine bodies are arranged in one-to-one correspondence with the at least two fixing parts, and the fixing parts are arranged on the corresponding bearing machine bodies;
at least one folding device, wherein the folding device is positioned between two adjacent bearing machine bodies;
wherein the folding device comprises:
the first rotating structure and the second rotating structure are respectively and fixedly connected with the two adjacent bearing machine bodies;
two ends of the transmission part are respectively fixedly connected with the two adjacent bearing machine bodies; the transmission part is used for driving at least one of the first rotating structure and the second rotating structure to rotate when the angle of the plane where the two adjacent bearing machine bodies are located changes;
the damping structure, the both ends of damping structure are connected respectively first rotating-structure with the second rotating-structure, the damping structure is used for when first rotating-structure with the relative rotation of second rotating-structure, right first rotating-structure with the damping is applyed to the second rotating-structure.
2. The foldable display device of claim 1, wherein one end of the damping structure is hinged to the first rotating structure through a first hinge, and the other end of the damping structure is hinged to the second rotating structure through a second hinge; the central axis of the first hinge is parallel to the rotation axis of the first rotating structure, and the central axis of the second hinge is parallel to the rotation axis of the second rotating structure.
3. The foldable display device of claim 2, wherein the first rotation structure rotates to drive the first hinge to move in an arc, and the second rotation structure rotates to drive the second hinge to move in an arc.
4. The foldable display device of claim 2, wherein a central axis of the first hinge is parallel to and non-collinear with an axis of rotation of the first rotational structure and a central axis of the second hinge is parallel to and non-collinear with an axis of rotation of the second rotational structure.
5. The foldable display device of claim 2, wherein the first hinge and the second hinge are damped hinges, and wherein a resistance force of the first hinge and the second hinge is greater than a bounce force of the damping structure.
6. The foldable display device of claim 1, wherein the transmission is a chain, and the first and second rotational structures each comprise a gear;
the first rotating structure is meshed with the transmission piece through a gear, and the second rotating structure is meshed with the transmission piece through a gear.
7. The foldable display device of claim 6, wherein the first rotational structure comprises a first link and a second link that are perpendicular to each other, and the second rotational structure comprises a third link and a fourth link that are perpendicular to each other;
one end of the first connecting piece is fixedly connected with the bearing machine body, and the other end of the first connecting piece is fixedly connected with the second connecting piece; one end of the third connecting piece is fixedly connected with the bearing machine body, and the other end of the third connecting piece is fixedly connected with the fourth connecting piece;
one end of the second connecting piece is connected with the gear of the first rotating structure, and the other end of the second connecting piece is hinged with one end of the damping structure; one end of the fourth connecting piece is connected with the gear of the second rotating structure, and the other end of the fourth connecting piece is hinged with the other end of the damping structure.
8. The foldable display device of claim 7, wherein the axis of gear rotation of the first rotational structure is collinear with the axis of the second link and the axis of gear rotation of the second rotational structure is collinear with the axis of the fourth link.
9. The foldable display device of claim 1, wherein the damping structure comprises a first telescopic rod and a second telescopic rod, and the telescopic directions of the first telescopic rod and the second telescopic rod are the same as the arrangement direction of the first rotating structure and the second rotating structure; the end part of the first telescopic rod is hinged with the first rotating structure, and the end part of the second telescopic rod is hinged with the second rotating structure.
10. The foldable display device of claim 9, wherein the damping structure comprises a first damping tube and a second damping tube, the first telescopic rod and the second telescopic rod are respectively disposed in the first damping tube and the second damping tube, and the first damping tube and the second damping tube are fixed.
11. The foldable display device of claim 9, wherein the extending lengths of the first telescopic rod and the second telescopic rod gradually increase during the process that two adjacent fixing portions are folded towards the light exit surface; in the process that two adjacent fixing parts are folded back to the light emitting surface, the extending lengths of the first telescopic rod and the second telescopic rod are gradually reduced.
12. The foldable display device of claim 1, wherein an isolating protective layer is disposed between the transmission member and the flexible display screen.
13. The foldable display device of claim 1, further comprising at least one elastic protection sleeve, wherein two ends of the elastic protection sleeve are respectively and fixedly connected to the two adjacent carrying bodies, and the elastic protection sleeve is located on a side of the foldable display device facing away from the flexible display screen.
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| CN202110925077.XA CN113645331B (en) | 2021-08-12 | 2021-08-12 | Foldable display device |
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| CN202110925077.XA CN113645331B (en) | 2021-08-12 | 2021-08-12 | Foldable display device |
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| CN114215841A (en) * | 2021-12-17 | 2022-03-22 | 维沃移动通信有限公司 | Hinge assembly and folding apparatus |
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