CN113470515A - Folding assembly and folding display terminal - Google Patents
Folding assembly and folding display terminal Download PDFInfo
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- CN113470515A CN113470515A CN202010247689.3A CN202010247689A CN113470515A CN 113470515 A CN113470515 A CN 113470515A CN 202010247689 A CN202010247689 A CN 202010247689A CN 113470515 A CN113470515 A CN 113470515A
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- flexible screen
- protection mechanism
- structural member
- rotating shaft
- folding assembly
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Classifications
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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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- 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
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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
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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
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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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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses a folding assembly and a folding display terminal, wherein the folding assembly is used for bearing a flexible screen; the folding assembly comprises: a rotating shaft; a first structural member, a second structural member; the first structural member is rotatably connected with the second structural member through the rotating shaft; the first protection mechanism is connected with one end of the rotating shaft; from this, through setting up first protection machanism, can protect the flexible screen, avoid folding display terminal to fall and cause the flexible screen to damage. The first surface of the flexible screen deviates from the rotating shaft, and the first protection mechanism is higher than or equal to the first surface of the flexible screen, so that when the folding display terminal falls, the first protection mechanism is in contact with the collision point before the flexible screen, the protection of the flexible screen is enhanced, and the anti-collision performance of the folding display terminal is further improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a folding assembly and a folding display terminal.
Background
With the continuous development of display technology, the foldable display terminal is gradually becoming a development trend of future mobile electronic products. The folding display terminal can obtain a larger display area in an unfolding state, and the film watching effect is improved. The folding display terminal can obtain smaller volume under the folding state, and is convenient for a user to carry.
The folding display terminal at least comprises: a flexible screen and a folding assembly for carrying the flexible screen. Wherein, the flexible screen is fragile and easy to damage and fail.
However, in the use process, because folding display terminal inevitably has the scene of falling, causes the flexible screen to damage, especially to folding display terminal of outer folding design, because the flexible screen shows to be exposed outside, the above-mentioned damage problem of falling is more outstanding, and the maintenance cost of changing flexible screen or folding assembly after the damage is higher, influences user experience.
Disclosure of Invention
The embodiment of the application provides a folding assembly and a folding display terminal, and solves the problem that the folding display terminal falls to cause damage to a flexible screen and influence user experience.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: in a first aspect of embodiments of the present application, there is provided a folding assembly for carrying a flexible screen; the folding assembly comprises: a rotating shaft; a first structural member, a second structural member; the first structural member is rotatably connected with the second structural member through the rotating shaft; a first protection mechanism, the first protection mechanism comprising: the bearing impact head is detachably connected with one end of the rotating shaft; wherein, the flexible screen includes: and the first surface of the bearing impact head is higher than or equal to the first surface of the flexible screen. From this, through setting up first protection machanism, can protect the flexible screen, avoid folding display terminal to fall and cause the flexible screen to damage. Among them, the corner drop of the folded display terminal in the folded state most easily causes the flexible screen to be damaged in various falling forms. When folding display terminal is folding condition, the first protection machanism that this application embodiment provided is located the angle of buckling of flexible screen, and bears and assault the head and be higher than or equal to this flexible screen and deviate from this support piece's of buckling surface for when folding display terminal falls, this first protection machanism is prior to this flexible screen and collision point contact, has strengthened the protection to the flexible screen, has further improved folding display terminal's crashproof ability. First protection machanism can dismantle with the pivot and be connected, can maintain fast and change first protection machanism, reduces user's cost of maintenance by a wide margin.
In an optional implementation manner, a convex portion is arranged at one end of the rotating shaft, and a concave portion is arranged on the end surface of the bearing impact head, which is close to the rotating shaft, or the concave portion is arranged at one end of the rotating shaft, and the convex portion is arranged on the end surface of the bearing impact head, which is close to the rotating shaft, and the convex portion and the concave portion are detachably connected. Therefore, the size of the connecting surface of the bearing impact head and the rotating shaft is increased, and the connecting stability is improved.
In an alternative implementation, the male part and the female part are fixed by adhesive bonding. Therefore, the connecting structure is simpler and is convenient for mass production.
In an optional implementation, the first protection mechanism further includes: the connecting piece, convex part with all be equipped with on the concave part with connecting piece assorted connecting hole, the connecting piece wear to locate in the convex part the connecting hole of concave part. Therefore, the first protection mechanism and the rotating shaft can be detachably connected through the connecting piece.
In an optional implementation mode, be equipped with first joint spare on the lateral wall of convex part, be equipped with second joint spare on the inside wall of concave part, first joint spare with second joint spare cooperation joint. From this, can dismantle first protection machanism and pivot through first joint spare and second joint spare and be connected.
In an alternative implementation, the cross section of the convex part is D-shaped, regular polygon or irregular shape. Therefore, the convex part and the first protection structure can be prevented from rotating relatively, and the connection stability is improved.
In an alternative implementation, the outer surface of the convex part is provided with an external thread, the inner surface of the concave part is provided with an internal thread matched with the external thread, and the convex part is in threaded connection with the concave part. Therefore, the bearing impact head and the rotating shaft can be detachably connected in a threaded connection mode.
In an alternative implementation, the folding assembly further includes: the second protection mechanism is connected with the end face, extending out of the periphery of the flexible screen, of the first structural member, and is higher than or equal to the surface, deviating from the first structural member, of the flexible screen; the third protection mechanism is connected with the end face of the second structural member extending out of the periphery of the flexible screen, and the third protection mechanism is higher than or equal to the surface of the flexible screen deviating from the second structural member. Therefore, the periphery of the flexible screen can be protected by arranging the second protection structure and the third protection structure. Meanwhile, the second protection mechanism and the third protection mechanism are higher than or equal to the surface of the flexible screen, which is deviated from the second structural member, when the flexible screen falls or collides, the second protection mechanism and the third protection mechanism can be in contact with the collision point before the flexible screen, so that the protection of the flexible screen is enhanced, and the anti-collision performance of the folding display terminal is further improved.
In an alternative implementation, the second protection mechanism is integrally formed with the first structural member, and the third protection mechanism is integrally formed with the second structural member. From this, integrated into one piece's connected mode intensity is higher, has further improved folding display terminal's crashproof performance.
In an optional implementation manner, a bracket interface is arranged on the end surface of the bearing impact head. Therefore, when the foldable display terminal is used, the support can be inserted into the support interface, the foldable display terminal can be supported, and the user can use the foldable display terminal conveniently.
In an optional implementation manner, a second protrusion is arranged on the first structural member, a second concave portion matched with the second protrusion is arranged on the rotating shaft, and the second protrusion is located in the second concave portion; and a third protrusion is arranged on the second structural part, a third concave part matched with the third protrusion is arranged on the rotating shaft, and the third protrusion is positioned in the third concave part. Therefore, through the matching of the second concave part and the second protrusion, and the matching of the third concave part and the third protrusion, when the folding display terminal falls, the displacement error quantity of the first structural member and the second structural member relative to the rotating shaft can be greatly reduced, and the damage of the flexible screen caused by the shearing force generated by the falling of the folding display terminal to the flexible screen is avoided.
In an optional implementation manner, the foldable display terminal further includes: the bending support piece is positioned on one side of the rotating part facing the flexible screen and is connected with the rotating shaft, the first structural part and the second structural part; the bending support piece comprises a flexible connecting layer and a plurality of rigid support bars which are arranged at intervals and are parallel to the axis direction of the rotating shaft; the rigid support bar is connected with the flexible connecting layer; the flexible connecting layer is connected with the bending area of the flexible screen through an adhesive layer. Therefore, the flexible material layer can enable the bending support piece to have certain flexibility, the maximum bending angle of the bending area of the flexible screen can meet the requirement, the rigid support strip can provide strong rigidity for the bending support piece, the bending support piece has good support performance, and the impact resistance of the bending area of the flexible screen in the bending process of the folding display terminal is improved.
In an optional implementation manner, a first elastic component is disposed between the end surface of the bending support and the first protection mechanism. Therefore, the first elastic part is arranged between the bending support piece and the first protection mechanism, so that buffering is realized when the folding display terminal falls, and the bending support piece is protected.
In an optional implementation manner, the impact strength of the bearing impact head is greater than or equal to that of the rotating shaft, and the material of the bearing impact head is amorphous metal, titanium alloy or bulletproof steel. Thereby, the impact resistance of the load-bearing impact head is further improved.
In an alternative implementation, the impact head-bearing head is provided with a second elastic component. Therefore, the buffer can be further realized when the folding display terminal falls, and the bearing impact head is protected.
In a second aspect of the embodiments of the present application, there is provided a foldable display terminal, including a flexible screen, and the folding assembly as described above; the first non-bending area of the flexible display screen is connected with a first structural member in the folding assembly; the second non-bending area of the flexible display screen is connected with a second structural part in the folding assembly; the bending area of the flexible display screen is connected with a bending support piece in the folding assembly; wherein the bending region is located between the first non-bending region and the second non-bending region. From this, this folding display terminal adopts above-mentioned folding assembly, has improved folding display terminal's crashproof performance.
Drawings
Fig. 1 is a schematic structural diagram of a folding display terminal in the prior art;
FIG. 1a is a diagram illustrating a usage status of the foldable display terminal shown in FIG. 1;
FIG. 1b is a view illustrating a bending state of the foldable display terminal of FIG. 1;
FIG. 1c is an expanded state diagram of the foldable display terminal of FIG. 1;
fig. 2 is a schematic view of a disassembled structure of a foldable display terminal according to an embodiment of the present disclosure;
FIG. 2a is a schematic view of a bending support according to an embodiment of the present disclosure;
FIG. 2b is a schematic view of another embodiment of the present invention showing a bending support;
fig. 3 is a schematic view of a disassembled structure of another foldable display terminal according to an embodiment of the present application;
FIG. 3a is a top view of the foldable display terminal of FIG. 3;
FIG. 3b is a cross-sectional view A-A of FIG. 3 a;
FIG. 3c is a front view of the foldable display terminal of FIG. 3;
fig. 4 is a schematic view of a falling state of the folding display terminal in fig. 3;
FIG. 5 is an enlarged view of a portion of M in FIG. 4;
fig. 6 is a schematic view of a disassembled structure of another foldable display terminal according to an embodiment of the present application;
FIG. 6a is a top view of the foldable display terminal of FIG. 6;
FIG. 6b is a front view of the foldable display terminal of FIG. 6;
FIG. 6c is another front view of the foldable display terminal of FIG. 6;
FIG. 6d is another front view of the foldable display terminal of FIG. 6;
fig. 7 is a schematic view illustrating a falling state of the folding display terminal in fig. 6;
FIG. 7a is a schematic structural view of the first protection mechanism of FIG. 7;
FIG. 7b is an enlarged view of a portion of N in FIG. 7;
FIG. 7c is a cross-sectional view B-B of FIG. 7;
FIG. 7d is a schematic view of another coupling member;
FIG. 8 is a schematic view showing a structure of another connecting member;
FIG. 9 is a schematic view showing the structure of another connecting member;
fig. 10 is a schematic view of a disassembled structure of another foldable display terminal according to an embodiment of the present application;
fig. 11 is a schematic view of the folded display terminal of fig. 10 in a falling state in a folded state.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.
In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
Further, in the present application, directional terms such as "upper" and "lower" are defined with respect to a schematically-disposed orientation of components in the drawings, and it is to be understood that these directional terms are relative concepts that are used for descriptive and clarity purposes and that will vary accordingly with respect to the orientation in which the components are disposed in the drawings.
The embodiment of the application provides a folding display terminal, which can be a product with a display interface, such as a mobile phone, a display, a tablet computer, a vehicle-mounted computer and the like. The embodiment of the present application does not specially limit the specific form of the folding display terminal.
In order to facilitate understanding of the foldable display terminal provided in the embodiment of the present application, a foldable display terminal of an existing type is described below with reference to fig. 1 as follows:
as shown in fig. 1, the folding display terminal 01 includes a flexible screen 10. The flexible screen 10 may be an Active Matrix Organic Light Emitting Diode (AMOLED) display screen.
The AMOLED display screen is a self-luminous display screen, and a Back Light Module (BLM) is not required. Therefore, when the substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable characteristic.
In addition, as shown in fig. 1, the folding display terminal 01 further includes a folding assembly 20 for carrying the flexible screen 10.
It should be noted that, the relevant drawings of the folding assembly 20 in the present application are simplified schematic structural diagrams, and the folding assembly 20 is not limited to the structures in the drawings, and may also include other structures, which are not described herein again.
The folding assembly 20 includes a first structure 201, a second structure 202, and a shaft 203 disposed between the first structure 201 and the second structure 202.
The rotating shaft 203 is connected to the first and second structural members 201 and 202. The first structure 201 and the second structure 202 are rotatable about the rotation shaft 203, respectively. The first structural member 201 and the second structural member 202 may be a housing or a middle frame structure of an electronic device.
The first structural member 201 and the second structural member 202 may be used to carry the flexible screen 10, so that the flexible screen 10 is kept as flat as possible during use, and the non-display surface of the flexible screen 10 is protected.
A portion of the flexible screen 10 is fixed to the first structural member 201 by a glue layer, a portion is fixed to the second structural member 202 by a glue layer, and the rest of the flexible screen 10 is located between the first structural member 201 and the second structural member 202. The glue layer can be a thin film layer formed after glue is coated, and the embodiment of the application does not limit the specific form of the glue layer. In addition, other electronic components, such as a camera, an earphone, a button, a battery, and the like, may be disposed on the first structural member 201 and the second structural member 202, and the embodiment of the present application is not limited to the other electronic components disposed on the first structural member 201 and the second structural member 202.
The first structural member 201 and the second structural member 202 can rotate along the axis O-O of the rotating shaft 203, respectively, so as to fold or unfold the flexible screen 10. As shown in fig. 1a, the flexible screen may be bent and flattened, wherein fig. 1a shows a flattening process of the flexible screen from 180 ° flattening to 0 ° flattening, or a folding process of the flexible screen from 0 ° folding to 180 °.
As shown in fig. 1b, when the angle α between the first structural member 201 and the second structural member 202 is 0 °, the flexible screen 10 is in a folded state.
Alternatively, as shown in fig. 1c, when the angle α between the first structural member 201 and the second structural member 202 increases to 180 °, the flexible screen 10 is in the unfolded state.
In the case that the first structural member 201 and the second structural member 202 do not have the bending property, the region of the flexible screen 10 connected to the first structural member 201 through the glue layer cannot be bent, and the partial region is the first non-bending region 101 shown in fig. 2.
The area of the flexible screen 10 connected to the second structural member 202 through the adhesive layer cannot be bent under the load of the second structural member 202, and this area is the second non-bending area 102 shown in fig. 2.
In addition, in the flexible screen 10, a portion between the first non-bending region 101 and the second non-bending region 102 is a bending region 103 that enables the folding display terminal 01 to realize a bending characteristic.
On the basis, in order to support the bending region 103 of the flexible screen 10, the bending performance of the bending region 103 of the flexible screen 10 can be ensured to meet the requirement while the rigidity and the impact resistance of the bending region 103 are improved. As shown in fig. 2, the folding assembly 20 further includes a bending support 30.
The bending support 30 is located on the side of the rotation axis 203 facing the flexible screen 10. The bending support 30 is further connected to a first structural member 201 and a second structural member 202.
For example, one end of the bending support 30 close to the first structural member 201 may be adhered to the first structural member 201 by a glue layer.
One end of the bending support 30 near the second structural member 202 may be adhered to the second structural member 202 by a glue layer.
In addition, the bending support 30 is connected to the rotating shaft 203 in an intermediate region except for a portion connected to the first structural member 201 and the second structural member 202.
It should be noted that the present application is not limited to the connection manner of the bending support 30 and the rotating shaft 203.
As can be seen from the above description, on one hand, the bending support 30 needs to support the bending region 103, so that the bending region 103 of the flexible screen 10 has good impact resistance during the bending process of the foldable display terminal 01, and the probability of damage to the flexible screen 10 in the bending region 103 is reduced.
On the other hand, the bending support 30 also needs to have good flexibility to ensure that the maximum bending angle of the bending region 103 of the flexible screen 10 can be reached. For example, the bending region 103 of the flexible screen 10 and the bending support 30 can ensure that the back surface (the surface facing away from the flexible screen 10) of the first structural member 201 is in contact with the back surface of the second structural member 202 when the bending region and the bending support are at the maximum bending angle.
In order to meet the above requirement, in some embodiments of the present application, as shown in fig. 2 and 2a, the bending support 30 includes a flexible connecting layer 301, and a plurality of rigid support bars 302 spaced apart and arranged along the axis O-O of the rotating shaft 203. A plurality of rigid support bars 302 are arranged at intervals, and each rigid support bar 302 is connected with the flexible connecting layer 301.
Alternatively, and for example, in other embodiments of the present application, as shown in FIG. 2b, flexible connecting layer 301 encases a plurality of rigid support strips 302. In this case, each rigid support strip 302 is peripherally covered by a flexible connecting layer 301.
The rigidity of the material constituting the rigid support strip 302 is greater than the rigidity of the material constituting the flexible connection layer 301.
For example, the material of the rigid support strip 302 may be a simple metal, such as tungsten or molybdenum; or may be a metal compound such as an alloy steel, e.g., stainless steel, die steel, etc., or an amorphous alloy.
The material constituting the flexible connection layer 301 may be a silicone material having high flexibility. In this way, the flexible material layer 301 may provide the bending support 30 with a certain flexibility, thereby ensuring that the maximum bending angle of the bending region 103 of the flexible screen 10 can be reached.
In addition, the rigid support strip 302 can provide stronger rigidity for the bending support 30, so that the bending support 30 has good support performance, and the impact resistance of the bending area 103 of the flexible screen 10 in the bending process of the foldable display terminal 01 is improved.
The flexible screen 10 is fragile, the folding display terminal falls to easily damage the flexible screen 10, and in various falling forms, the folding display terminal of the outer folding design falls at the angle of the folding state to most easily cause the damage of the flexible screen, wherein the folding display terminal of the outer folding design is located outside the device when the folding state is achieved.
In order to prevent the flexible screen 10 from being damaged when the foldable display terminal is dropped, a protection mechanism needs to be provided for the flexible screen 10.
In another implementation manner of the present application, as shown in fig. 3, fig. 3a, fig. 3b, fig. 3c, fig. 4, and fig. 5, a protection mechanism 303 may be disposed at one end of the bending support 30, the protection mechanism 303 extends from an end surface of the bending support 30 to end surfaces of the flexible screen 10 and the rotating shaft 203, respectively, and the protection mechanism 303 and the bending support 30 are arranged in a "T" shape.
From this, through setting up protection mechanism 303, can protect the bending zone 103 of flexible screen, avoid folding display terminal to fall and cause the flexible screen to damage.
Moreover, when the foldable display terminal is in a folded state, the protection mechanism 303 provided by the embodiment of the application is located at the bent angle of the flexible screen, so that the bent angle of the flexible screen can be protected, especially the corner of the foldable display terminal in the folded state and in an external folding design can be protected from falling, and the anti-collision performance of the foldable display terminal is improved.
Wherein the protection mechanism 303 is higher than or equal to the surface of the flexible screen 10 away from the bending support 30, for example, so that when the foldable display terminal falls, the protection mechanism 303 contacts with the collision point before the flexible screen, which enhances the protection of the flexible screen and further improves the anti-collision performance of the foldable display terminal.
The embodiment of the present application does not limit the material of the protection mechanism 303. Exemplary materials for the protection mechanism 303 include, but are not limited to: alloy steel such as stainless steel and die steel, or amorphous alloy. The protection mechanism 303 may be injection molded using a Metal Injection Molding (MIM) process. During molding, the metal powder and the plasticized mixture of the binder can be mixed, and then the mixture is granulated and injected into a required shape.
However, the number of the rigid supporting bars 302 is multiple, the number of the protection mechanisms 303 is the same as that of the rigid supporting bars 302, and the protection mechanisms 303 are connected to the end face of each rigid supporting bar, so that the process is complicated.
Moreover, as shown in fig. 4, when the flexible screen device falls at a corner, the protection mechanism 303 and the single rigid support bar 302 bear impact, and the protection mechanism 303 and the single rigid support bar 302 are easily deformed or broken at the position of the cross of the T shape of the protection mechanism 303 and the single rigid support bar 302, that is, at the position 304 in fig. 5, so that the display of the flexible screen is abnormal after the folding display terminal falls, and the above problem is particularly prominent for the device in which the flexible screen is folded outwards.
In order to further improve the protection effect of the protection mechanism 303 on the flexible screen 10, a portion of the rigid support bar 302 impacted by falling may be reinforced, or a rotation shaft is used to assist in limiting the position of the rear side of the rigid support bar 302 to share a part of the falling impact, or as shown in fig. 5, a gap between the flexible screen 10 and the protection mechanism 303 is increased to leave a large safety margin.
However, due to the size limitation of the rigid support bar 302, the structural strength thereof cannot be increased unlimitedly, and although a part of the drop impact is distributed on the rear side of the rigid support bar 302 by using the rotating shaft, the total impact energy is too large, and the remaining impact energy still causes the rigid support bar 302 to be broken or deformed; and the clearance between the flexible screen 10 and the protection mechanism 303 is too large, and the appearance is not beautiful.
Compared with the protection mechanism 303 in the above embodiment, the part of the first protection mechanism 2031 in this embodiment, which bears the drop impact, is changed from the protection mechanism 303 on the rigid support bar 302 to the first protection mechanism 2031 on the rotating shaft 203.
As shown in fig. 6, 6a, 6b, 7, and 8, a first protection mechanism 2031 may be disposed at one end of the rotating shaft 203, and the first protection mechanism 2031 extends from the end surface of the rotating shaft 203 to the end surface of the flexible screen 10, so that the first protection mechanism 2031 and the rotating shaft 203 are arranged in an "L" shape.
From this, through setting up first protection machanism 2031, can protect the bending zone 103 of flexible screen, avoid folding display terminal to fall and cause the flexible screen to damage.
The rotating shaft 203 includes a first end and a second end opposite to each other, for example, the first protection mechanism 2031 may be disposed at one end of the rotating shaft 203, or the first protection mechanism 2031 may be disposed at two ends of the rotating shaft 203, respectively.
When the folding display terminal is in a folded state, the first protection mechanism 2031 provided in the embodiment of the present application is located at a bending angle of the flexible screen, so as to protect the bending angle of the flexible screen, especially protect the corner of the folding display terminal in the folded state from falling, and improve the anti-collision performance of the folding display terminal.
It should be noted that the size of the first protection mechanism is not limited in the embodiments of the present application. As shown in fig. 8, the head 2030 of the first protection mechanism 2031 first contacts the ground when falling, and the impact is the largest, so that the area or thickness of the head 2030 can be increased appropriately, or the size of the whole first protection mechanism 2031 can be adjusted to increase the stressed area and improve the impact resistance of the foldable display terminal.
The structure of the first protection mechanism 2031 is not limited in the embodiment of the present application. The first protection mechanism 2031 includes, for example: the impact-bearing head 20311 is, for example, higher than or equal to the surface of the flexible screen 10 facing away from the bending support 30, so that when the foldable display terminal falls, the impact-bearing head 20311 is in contact with the impact point before the flexible screen, which enhances the protection of the flexible screen and further improves the anti-collision performance of the foldable display terminal.
It should be noted that the flexible screen 10 includes a first surface and a second surface opposite to each other, the second surface of the flexible screen 10 is fixed to the folding assembly by adhesion, for example, through an adhesive layer, and the first surface of the flexible screen 10 is a surface facing away from the adhesive layer.
The embodiment of the present application does not limit the connection manner between the first protection mechanism 2031 and the rotating shaft 203. In an implementation manner of the present application, the first protection mechanism 2031 and the rotating shaft 203 are integrally formed, so that the connection strength between the first protection mechanism 2031 and the rotating shaft 203 can be improved, and the anti-collision performance of the foldable display terminal is further improved.
In another implementation of the present application, the first protection mechanism 2031 is detachably connected to the rotating shaft 203. For example, as shown in fig. 7 and 7a, the first protection mechanism 2031 includes: impact head 20311 and recess 20312, wherein recess 20312 bears on the end face of impact head 20311 near rotary shaft 203.
When the bearing impact head 20311 falls, the bearing impact head 20311 firstly contacts the ground, the impact on the bearing impact head 20311 is the largest, and the impact strength of the bearing impact head 20311 is greater than or equal to that of the rotating shaft. For example, the load-bearing impact head 20311 can be made of amorphous metal, titanium alloy, high alloy steel (e.g., bullet-proof steel) with more than 10% of the alloy element solder, or the like.
The end face of the rotating shaft 203 extending out of the flexible screen 10 is provided with a convex part 2035, and the size of the end face of the convex part 2035 is smaller than that of the end face of the rotating shaft. The recess 20312 matches the profile of the protrusion 2035, the protrusion 2035 being located in the recess 20312. Therefore, the size of the connecting surface of the first protection mechanism and the rotating shaft is larger, and the connecting stability is improved. The size of the end surface of the recess 20312 is, for example, the same as the shape and size of the end surface of the shaft 203, and the recess 20312 and the end surface of the shaft 203 can be in close contact with each other.
The shape of the convex portion is not limited in the embodiments of the present application. In one implementation of the present application, the cross-section of the convex portion is D-shaped, regular polygonal, or irregular, as shown in fig. 7 b. Therefore, the convex part and the concave part can be prevented from rotating relatively when in use, and the stability of connection is improved.
The embodiment of the present application does not limit the specific connection manner of the convex portion and the concave portion. The convex portion 2035 is connected to the concave portion 20312 via a connecting member 2034, for example.
In one embodiment of the present invention, as shown in fig. 7b and 7c, the connecting member 2034 is a pin or a screw, the convex portion 2035 and the concave portion 20312 are provided with, for example, a connecting hole matching the connecting member 2034, and the connecting member 2034 is inserted into, for example, the connecting hole of the convex portion 2035 and the concave portion 20312. When the impact head needs to be replaced or repaired, the first protection mechanism can be separated from the rotating shaft only by taking the connecting part 2034 out of the connecting hole. Therefore, the first protection mechanism and the rotating shaft can be detachably connected through the connecting part 2034, and assembly and maintenance are facilitated.
In another embodiment of the present invention, as shown in fig. 7d, the shaft 203 and the first protection mechanism 2031 may be detachably connected by a pin or a screw by providing a connection hole only at one end of the shaft 203 and the first protection mechanism 2031 without providing the concave portion and the convex portion. When the impact head needs to be replaced or repaired, the first protection mechanism can be separated from the rotating shaft 203 only by taking the connecting member 2034 out of the connecting hole. Therefore, the first protection mechanism and the rotating shaft can be detachably connected through the connecting part 2034, and assembly and maintenance are facilitated.
In another implementation of the present application, as shown in fig. 8, the connecting member 2034 includes: the convex portion 2035 is screwed into the concave portion 20312, the convex portion 2035 can be inserted into the concave portion 20312 and screwed in use, and when the first protection mechanism 2031 needs to be disassembled, the convex portion 2035 and the concave portion 20312 need to be unscrewed in the opposite direction and separated. Therefore, the first protection mechanism and the rotating shaft can be detachably connected through threads.
In another implementation of the present application, as shown in fig. 9, the connecting part 2034 may include: can cooperate the first joint spare and the second joint spare of joint, first joint spare sets up for example for the trip on the inside wall of concave part 20312, second joint spare sets up on the top of convex part 2035 for example for the toper structure. The second clamping piece can be made of elastic materials and can deform under the action of external force. Therefore, when the second clamping piece contracts under the action of external force, the second clamping piece can enter the clamping groove for example, and after the second clamping piece enters the clamping groove, the buckling head recovers deformation, and the first clamping piece and the second clamping piece are matched and clamped to enable the first protection mechanism to be detachably clamped on the rotating shaft 203.
In another implementation of the present application, the protrusion 2035 and the recess 20312 are secured by adhesive bonding. The adhesive may be, for example, a hot melt adhesive. When the first protection mechanism 2031 needs to be removed, the protrusion 2035 and the recess 20312 can be separated by applying a force in a direction away from the rotation shaft 203, or the first protection mechanism 2031 can be heated to soften the adhesive and then separate the protrusion 2035 and the recess 20312. Accordingly, the connection structure of the convex portion 2035 and the concave portion 20312 is simpler, and mass production is facilitated.
The material of the first protection mechanism 2031 is not limited in this embodiment of the application. For example, the first protection mechanism 2031 may be made of the same material as or different from the material of the rotating shaft 203. The material of the first protection mechanism 2031 includes but is not limited to: alloy steel such as stainless steel and die steel, or amorphous alloy. The first protection mechanism 2031 may be injection molded using a Metal Injection Molding (MIM) process. During molding, the metal powder and the plasticized mixture of the binder can be mixed, and then the mixture is granulated and injected into a required shape.
Wherein, first protection machanism can adopt the material that is higher than pivot intensity to obtain higher shock resistance, perhaps better buffering effect, use the flexibility high.
In addition, as shown in fig. 6c, the end pattern 2036 of the first protection mechanism 2031 can be customized, and the shape of the impact head can be customized, and the user can select it according to his/her needs, which all fall within the scope of the present application. As shown in fig. 6d, a bracket interface 2037 may be further disposed on the impact head 20311, so that, in use, the bracket may be inserted into the bracket interface 2037 to support the foldable display terminal. Wherein, the cradle interface 2037 can be used for vehicle-mounted cradles, facilitating the use of the user.
In the above embodiment, the impact-receiving part of the foldable display terminal is the weakest point in strength at the connection position of the protection mechanism 303 and the rigid support bar 302. In this embodiment, the impact-receiving component of the foldable display terminal is the weakest point in the connection position between the first protection mechanism 2031 and the rotating shaft 203. The size of the connection surface between the first protection mechanism 2031 and the rotating shaft 203 is larger than the size of the connection surface between the protection mechanism 303 and the rigid support bar 302, which is beneficial to improving the shock resistance of the foldable display terminal.
Usually, there are a plurality of rigid support bars, for example, as shown in fig. 2, there are 5 rigid support bars, but of course, there may be 7 or more rigid support bars, and there are gaps left between the rigid support bars. The size of the connecting surface between the first protection mechanism 2031 and the rotating shaft 203 is about 5-6 times that of the connecting surface between the protection mechanism 303 and the rigid support bar 302, and the strength of the rotating shaft 203 is about 5-6 times that of the rigid support bar under the condition of the same material, so that the falling collision avoidance performance is greatly improved.
Therefore, the folding assembly provided by the embodiment of the application, through the arrangement of the first protection mechanism connected with the rotating shaft 203, compared with the protection mechanism connected with the rigid support bar of the bending support member 30 in the embodiment, can improve the strength of the impacted part when the corner falls by 5-6 times, so that the damage of the flexible screen caused by the fracture and deformation of the part is avoided.
Referring next to fig. 7, the end surface of the bending support 30 may be retracted, and an elastic member 40 may be disposed between the end surface of the bending support and the frame. The material of the first elastic member 40 includes, but is not limited to, silicone.
Therefore, by providing the first elastic member 40, the buffering can be realized when the vehicle falls, and at the same time, the end surface of the bending support member 30 is retracted, and the first protection mechanism 2031 is disposed outside the bending support member, wherein the number of the first protection mechanisms 2031 is only 1, and compared with the case where the number of the protection mechanisms 303 is plural in the above embodiment, the process is simpler, and the manufacturing yield can be greatly improved.
In addition, as shown in fig. 7a, a second elastic member 50 may be further disposed at the head of the bearing impact head 20311 to buffer the impact of falling on the bearing impact head, thereby improving the impact resistance of the foldable display terminal.
It should be noted that the second elastic member 50 may be sleeved on the head of the impact-bearing head 20311, or a plurality of blind holes may be formed in the head of the impact-bearing head 20311, and the second elastic member is filled in the blind holes. All falling within the scope of protection of the present application.
Referring next to fig. 2, 3 and 6, a second protection mechanism 2011 may be further disposed on an end surface of the first structural member 201 extending out of the periphery of the flexible screen 10, and a third protection mechanism 2021 may be further disposed on an end surface of the second structural member 202 extending out of the periphery of the flexible screen 10.
Therefore, the periphery of the flexible screen can be protected by arranging the second protection structure and the third protection structure.
Wherein the second protection mechanism 2011 is higher than or equal to the surface of the flexible screen facing away from the first structural member 201. The third protection mechanism 2021 is higher than or equal to the surface of the flexible screen facing away from the second structural member.
Therefore, when the folding display terminal falls or collides, the second protection mechanism and the third protection mechanism can be in contact with the collision point prior to the flexible screen, the protection of the flexible screen is enhanced, and the anti-collision performance of the folding display terminal is further improved.
In the embodiment of the present application, the connection manner between the second protection mechanism 2011 and the second structural member 202, and the connection manner between the third protection mechanism 2021 and the second structural member 202 are not limited.
In an implementation manner of the present application, the second protection mechanism 2011 and the first structural member 201 are made of the same material, and the second protection mechanism 2011 and the first structural member 201 may be formed separately and then welded together.
Similarly, the third protection mechanism 2021 and the second structural element 202 are made of the same material, and the third protection mechanism 2021 and the second structural element 202 may be formed separately and then welded together.
In another implementation of the present application, the second protection mechanism 2011 is integrally formed with the second structural member 202. Therefore, the connection strength between the second protection mechanism 2011 and the second structural member 202 can be improved, and the anti-collision performance of the folding display terminal is further improved.
Similarly, the third protection mechanism 2021 and the second structural member 202 are integrally formed. Therefore, the connection strength between the third protection mechanism 2021 and the second structural member 202 can be improved, and the anti-collision performance of the foldable display terminal can be further improved.
The second protection mechanism 2011 and the third protection mechanism 2021 are not limited in material in the embodiment of the present application. Exemplary materials for the second protection mechanism 2011 and the third protection mechanism 2021 include, but are not limited to: an aluminum alloy.
The second protection mechanism 2011 and the third protection mechanism 2021 may be formed by die casting or obtained by numerical control machining.
In order to avoid the flexible screen from being damaged due to the relative dislocation between the first structural member 201 and the second structural member 202 in the falling direction and the rotating shaft 203 under the influence of the falling inertia, as shown in fig. 10 and 11, the folding assembly further comprises: and a limiting component.
The limiting part comprises: a protrusion and a recess.
In an implementation manner of the embodiment of the present application, the protrusions are disposed on the first structural member 201 and the second structural member 202, and the concave portion is disposed on the rotating shaft.
For example, as shown in fig. 10 and 11, 2 second protrusions 2012 are disposed on the first structural member 201, and 2 second recesses 2032 matching with the second protrusions 2012 are disposed on the rotating shaft, when the first structural member 201 is folded, the second protrusions 2012 are located in the second recesses 2032 to form a limiting structure, so as to prevent the first structural member 201 from moving relative to the rotating shaft 203.
Similarly, 2 third protrusions 2022 are disposed on the second structural member 202, 2 third recesses 2033 matched with the third protrusions 2022 are disposed on the rotating shaft 203, and when the second structural member 202 is folded, the third protrusions 2022 are disposed in the third recesses 2033 to form a limiting structure, thereby preventing the second structural member 202 from moving relative to the rotating shaft 203.
It should be noted that, in the embodiment of the present application, the number of the limiting components is not limited, the limiting component may include 1 set of protrusions and recesses that are matched with each other, or may include multiple sets, and those skilled in the art may set the limiting component as needed, which all belong to the protection scope of the present application.
In another implementation manner of the embodiment of the present application, the first structural member 201 and the second structural member 202 are provided with the concave portions, and the rotating shaft is provided with the protrusions, which are not described herein again.
Therefore, the folding assembly provided by the embodiment of the application can greatly reduce displacement error of the first structural member and the second structural member relative to the rotating shaft when the folding display terminal falls through the matching of the second concave part and the second protrusion, and the damage of the flexible screen caused by the shearing force generated by the falling of the folding display terminal to the flexible screen is avoided.
Wherein, this limit structure can reduce the displacement dislocation volume by 70%.
As shown in fig. 10, the folding assembly 20 further includes a third structural member 204 and a fourth structural member 214. A first sliding groove is formed in the first structural member 201, and a second sliding groove is formed in the second structural member 202.
The third structural element 204 and the fourth structural element 214 may be rotation pieces of a cylindrical structure, and the cross section of the third structural element 204 and the fourth structural element 214 is, for example, a circle or a polygon, and the cross section shape of the third structural element and the fourth structural element is not limited in the embodiments of the present application. The first end of the third structural member 204 is rotatably connected to the rotating shaft 203, and the second end thereof can extend into the first sliding groove and is slidably connected to the first sliding groove. So that when the first structural member 201 rotates around the axis O-O of the rotating shaft 203, the first structural member 201 can slide a preset distance in a direction approaching or departing from the rotating shaft 203 with respect to the third structural member 204.
Similarly, the first end of the fourth structural member 214 is rotatably connected to the rotating shaft 203, and the second end thereof can extend into the second sliding slot and is slidably connected to the second sliding slot. So that when the second structural member 202 rotates around the axis O-O of the rotating shaft 203, the second structural member 202 can slide in a direction approaching or departing from the rotating shaft 203 relative to the fourth structural member 214.
The embodiment of the present application does not limit the connection mode between the third structural member 204 and the first sliding groove and the connection mode between the fourth structural member 214 and the second sliding groove, and only sliding connection is required.
During the folding process of the flexible screen 10, the first structural member 201 slides relative to the third structural member 204 in a direction close to the rotation axis 203, and the second structural member 202 slides relative to the fourth structural member 214 in a direction close to the rotation axis 203. Therefore, the first structural member 201 can slide relative to the third structural member 204, the second structural member 214 can slide relative to the fourth structural member 214, partial bending force can be released, the pulling force on the flexible screen is reduced, and the phenomenon that the pulling force on the flexible screen is overlarge in the bending process is avoided.
During the unfolding process of the flexible screen 10, the first structural member 201 slides relative to the third structural member 204 in a direction away from the rotating shaft 203; the second structure 202 slides relative to the fourth structure 214 in a direction away from the rotation axis 203. Therefore, the first structural member 201 can slide relative to the third structural member 204, and the second structural member 214 can slide relative to the fourth structural member 214, so that partial stretching force can be released, the pulling force on the flexible screen is reduced, and the phenomenon that the pulling force on the flexible screen is overlarge in the stretching process is avoided.
The slewing mechanism that this application embodiment provided, the third structure with first structure sliding connection, the fourth structure with second structure sliding connection has reduced the power of dragging of first structure, second structure and pivot to the flexible screen, has improved the planarization of flexible screen.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (16)
1. A folding assembly for carrying a flexible screen; the folding assembly comprises:
a rotating shaft;
a first structural member, a second structural member; the first structural member is rotatably connected with the second structural member through the rotating shaft;
a first protection mechanism, the first protection mechanism 2031 comprising: a bearing impact head 20311, wherein the bearing impact head 20311 is detachably connected with one end of the rotating shaft 203;
wherein, the flexible screen includes: and the first surface of the bearing impact head is higher than or equal to the first surface of the flexible screen.
2. The folding assembly of claim 1, wherein the rotating shaft has a protrusion at one end thereof, and the impact head has a recess at an end surface thereof adjacent to the rotating shaft, or the rotating shaft has a recess at one end thereof, and the impact head has a protrusion at an end surface thereof adjacent to the rotating shaft, and the protrusion is detachably connected to the recess.
3. A folding assembly as claimed in claim 2, wherein said male and female portions are secured by adhesive bonding.
4. The folding assembly of claim 2 wherein said first protection mechanism further comprises: the connecting piece, convex part with all be equipped with on the concave part with connecting piece assorted connecting hole, the connecting piece wear to locate in the convex part the connecting hole of concave part.
5. The folding assembly of claim 2, wherein a first clamping member is disposed on an outer side wall of the convex portion, a second clamping member is disposed on an inner side wall of the concave portion, and the first clamping member and the second clamping member are clamped in a matching manner.
6. A folding assembly as claimed in any one of claims 2 to 4, characterized in that the cross-section of said male portion is D-shaped, regular polygonal or irregular.
7. A folding assembly as claimed in claim 2, wherein said male portion is circular in cross-section, an outer surface of said male portion is provided with an external thread, an inner surface of said female portion is provided with an internal thread matching said external thread, and said male portion is threadedly connected to said female portion.
8. The folding assembly of any of claims 1-7, further comprising: a second protection mechanism and a third protection mechanism,
the second protection mechanism is connected with the end face of the first structural member extending out of the periphery of the flexible screen, and the second protection mechanism is higher than or equal to the first surface of the flexible screen;
the third protection mechanism is connected with the end face of the second structural member extending out of the periphery of the flexible screen, and the third protection mechanism is higher than or equal to the first surface of the flexible screen.
9. The folding assembly of claim 8 wherein said second protection mechanism is integrally formed with said first structural member and said third protection mechanism is integrally formed with said second structural member.
10. A folding assembly according to any of claims 1 to 9, wherein a bracket interface is provided on the impact head-carrying end face.
11. The folding assembly of any of claims 1-10, further comprising:
the bending support piece is positioned on one side of the rotating part facing the flexible screen and is connected with the rotating shaft, the first structural part and the second structural part;
the bending support piece comprises a flexible connecting layer and a plurality of rigid support bars which are arranged at intervals and along the axial direction of the rotating shaft; the rigid support bar is connected with the flexible connecting layer; the flexible connecting layer is connected with the bending area of the flexible screen through an adhesive layer.
12. A folding assembly as claimed in claim 11 wherein a first resilient member is provided between the end face of the bending support and the load bearing impact head.
13. The folding assembly of any of claims 1 to 12 wherein the impact strength of the load bearing impact head is greater than or equal to the impact strength of the rotating shaft, and the material of the load bearing impact head comprises amorphous metal, titanium alloy, or bullet-proof steel.
14. A folding assembly according to any of claims 1 to 13, wherein the impact head-carrying head is provided with a second resilient member.
15. A folding assembly as claimed in any one of claims 1 to 14,
a second bulge is arranged on the first structural member, a second concave part matched with the second bulge is arranged on the rotating shaft, and the second bulge is positioned in the second concave part;
and a third protrusion is arranged on the second structural part, a third concave part matched with the third protrusion is arranged on the rotating shaft, and the third protrusion is positioned in the third concave part.
16. A folding display terminal, comprising a flexible screen, and a folding assembly according to any one of claims 1-15;
the first non-bending area of the flexible display screen is connected with a first structural member in the folding assembly;
the second non-bending area of the flexible display screen is connected with a second structural part in the folding assembly;
the bending area of the flexible display screen is connected with a bending support piece in the folding assembly;
wherein the bending region is located between the first non-bending region and the second non-bending region.
Priority Applications (2)
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CN202010247689.3A CN113470515A (en) | 2020-03-31 | 2020-03-31 | Folding assembly and folding display terminal |
PCT/CN2021/082817 WO2021197172A1 (en) | 2020-03-31 | 2021-03-24 | Foldable assembly and foldable display terminal |
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CN202010247689.3A CN113470515A (en) | 2020-03-31 | 2020-03-31 | Folding assembly and folding display terminal |
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WO2023138426A1 (en) * | 2022-01-18 | 2023-07-27 | 荣耀终端有限公司 | Electronic device |
WO2024001480A1 (en) * | 2022-07-01 | 2024-01-04 | 荣耀终端有限公司 | Folding assembly and foldable display device |
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