CN113938543A - Folding assembly and folding display terminal - Google Patents
Folding assembly and folding display terminal Download PDFInfo
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- CN113938543A CN113938543A CN202010675868.7A CN202010675868A CN113938543A CN 113938543 A CN113938543 A CN 113938543A CN 202010675868 A CN202010675868 A CN 202010675868A CN 113938543 A CN113938543 A CN 113938543A
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- rotating shaft
- shell
- rotating
- display screen
- flexible display
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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
- 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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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The embodiment of the application discloses folding assembly, folding display terminal, this folding assembly includes: a rotating shaft; a first housing; the first shell is rotatably connected with the rotating part through the rotating shaft; the second shell is connected with the rotating piece in a sliding way; further comprising: connecting piece and composite gear, the first end and this pivot of this connecting piece are connected, and the second end is connected with this composite gear, and this composite gear includes: the first gear is meshed with the rack of the second shell, and the second gear is meshed with the rack of the rotating part; when the first shell and the rotating part rotate around the rotating shaft, the connecting piece drives the compound gear to rotate, and the second shell slides relative to the rotating part. Therefore, the folding assembly adopts the connecting piece and the composite gear as the transmission mechanism, so that the movement speed of the second shell is matched with the movement speed of the tail end of the flexible display screen, and the arching or pulling of the flexible display screen is reduced.
Description
Technical Field
The embodiment of 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.
Wherein, folding display terminal includes at least: the flexible display screen comprises a flexible display screen and a folding assembly for bearing the flexible display screen.
However, in the use process, the folding assembly is easy to generate a pulling force on the flexible display screen when being folded or unfolded, so that the flexible display screen is arched, and the user experience is influenced.
Disclosure of Invention
The embodiment of the application provides a folding assembly and a folding display terminal, and solves the problem that a flexible display screen is easily subjected to dragging force and influences 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, a folding assembly for carrying a flexible display screen is provided; the folding assembly includes: a rotating shaft; a first housing; the first shell is rotatably connected with the rotating part through the rotating shaft; the second shell is connected with the rotating piece in a sliding way; further comprising: connecting piece and composite gear, the first end and this pivot of this connecting piece are connected, and the second end is connected with this composite gear, and this composite gear includes: the first gear is meshed with the rack of the second shell, and the second gear is meshed with the rack of the rotating part; when the first shell and the rotating part rotate around the rotating shaft, the connecting piece drives the compound gear to move, and the second shell slides relative to the rotating part. From this, this folding assembly adopts connecting piece and compound gear as drive mechanism, from the exhibition to closed in-process, perhaps from closed to exhibition in-process, drive the second casing through the drive mechanism of connecting piece and compound gear, thereby make the rate of motion of second casing and the terminal removal speed phase-match of flexible display screen, compare as drive mechanism with adopting the spring, the second casing has the rigidity to support in the direction of motion, the tension that the flexible display screen received has been reduced, can reduce the flexible display screen hunch-up or reduce the pulling force that the flexible display screen received.
In an optional implementation manner, a first pin is disposed on a surface of the connecting member close to the second housing, the first gear and the second gear are rotatably connected to the first pin, wherein a reference circle radius of the first gear is r1, a reference circle radius of the second gear is r2, a moving speed of the second housing is V1, a moving speed of the second end of the connecting member is V2, and V1 and V2 satisfy the following conditions:
the moving speed of the second end of the connecting piece is smaller than that of the second shell, and the composite gear can be used as a displacement amplification mechanism, so that the moving speed of the second shell is matched with the moving speed of the tail end of the flexible display screen, and the arching of the flexible display screen or the pulling force applied to the flexible display screen is reduced.
In an alternative implementation manner, the second housing includes a protruding portion, the rotating member is provided with a concave portion adapted to the protruding portion, and when the first housing and the rotating member rotate around the rotating shaft, the protruding portion slides along the concave portion. Therefore, the protruding part and the concave part are connected together in a sliding mode, the second shell can slide relative to the rotating part, when the first shell and the rotating part rotate around the rotating shaft, partial tension can be released, and the pulling force of the second shell on the flexible display screen in the rotating process is reduced.
In an optional implementation manner, a sliding groove is arranged on the protruding portion, and a sliding rail adapted to the sliding groove is arranged on the recessed portion, or a sliding rail is arranged on the recessed portion, and a sliding groove adapted to the sliding rail is arranged on the protruding portion; when the first shell and the rotating member rotate around the rotating shaft, the sliding rail slides along the sliding groove. Therefore, the relative sliding of the convex part and the concave part can be guided by arranging the sliding rail and the sliding groove, and the stability of the structure is improved.
In an alternative implementation, a side surface of the protruding portion close to the concave portion is provided with at least one receiving groove, and an elastic component is arranged in the receiving groove, and the elastic component includes: a holding arm; when the first shell and the second shell are in an unfolded state, the abutting arm is abutted between the end surface of the concave part and the groove bottom of the accommodating groove, and the elastic part is used for providing force to the rotating part towards the direction of the rotating shaft; when the first shell and the second shell are in a folded state or a state between the folded state and the unfolded state, and the elastic component is compressed back into the accommodating groove, the abutting arm abuts and is arranged between the side surface of the concave part and the groove bottom of the accommodating groove. Therefore, when the whole machine is in a flattening state, the abutting arm abuts against the end face of the concave part, the elastic part has component along the relative movement direction, so that the second shell has thrust towards the rotating shaft direction relative to the rotating part, and due to the virtual position of the rotating part and the second shell, the thrust of the spring can directly act on the flexible display screen, so that the flexible display screen is in a tensioning state, and the phenomenon of arching of the screen can be effectively improved. When the whole machine is in a non-flattening state, the abutting arm abuts against the side face of the concave part, the elastic force of the elastic part has no component force in the relative movement direction, the flexible display screen cannot be under tension, and the creep of materials caused by the fact that the whole machine is under tension for a long time in the non-flattening state is avoided.
In an alternative implementation, the end surface of the recess is beveled. Therefore, when the concave part and the convex part move relatively, the elastic part can be compressed into the accommodating groove more easily, and the obstruction of the relative movement of the concave part and the convex part is avoided.
In an alternative implementation, the spindle includes: the first rotating shaft and the second rotating shaft are coaxially arranged, the second rotating shaft is sleeved on the first rotating shaft, and the rotating part is connected with the second rotating shaft. Therefore, the space occupied by the rotating shaft can be saved.
In an alternative implementation, the folding assembly further includes: the mounting, all be equipped with the connecting hole with this mounting adaptation on this first casing and this first axis of rotation, this mounting is worn to locate in the connecting hole of this first casing and this first axis of rotation. Therefore, the first shell is fixedly connected with the first rotating shaft, and when the first shell is rotated, the first rotating shaft rotates along with the first shell.
In an optional implementation manner, a second pin is disposed on a surface of the connecting member close to the first rotating shaft, a hole adapted to the second pin is disposed on the first rotating shaft, and the second pin penetrates through the hole. From this, this connecting piece is fixed on first axis of rotation, and when first axis of rotation rotated, the connecting piece can rotate thereupon, simple structure, and this connecting piece can be dismantled with first axis of rotation and be connected simple structure, the equipment of being convenient for.
In a second aspect of the embodiments of the present application, there is provided a foldable display terminal, including a flexible display screen, and the foldable assembly as described above; the first non-bending area of the flexible display screen is connected with a first shell in the folding component; the second non-bending area of the flexible display screen is connected with a second shell in the folding component; the bending area of the flexible display screen is connected with a rotating piece in the folding component; wherein the bending region is located between the first non-bending region and the second non-bending region. Therefore, the folding display terminal adopting the rotating mechanism is less in pulling force.
In an optional implementation manner, the bending area of the flexible display screen is provided with a metal strip, and the rotating member is provided with a magnet. Therefore, the arching of the screen bending area can be further reduced by utilizing the adsorption force of the magnets to the metal strips of the bending area.
In an alternative implementation, the metal strip includes: a plurality of metal sheets which are arranged at intervals and along the axial direction of the rotating shaft. Therefore, the metal strip is arranged in the bending area of the flexible display screen, and the bending of the bending area of the flexible display screen can not be influenced.
Drawings
Fig. 1 is an expanded state diagram of a folding display terminal;
fig. 2 is a folded state view of a folding display terminal;
fig. 3 is a schematic structural diagram of a foldable display terminal according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a folding assembly provided in an embodiment of the present application;
FIG. 5 is a schematic view of a disassembled structure of the folding assembly according to the embodiment of the present application;
FIG. 6 is a schematic view of another disassembled structure of the folding assembly provided by the embodiments of the present application;
fig. 7 is a schematic structural diagram of a rotating shaft according to an embodiment of the present disclosure;
FIG. 8 is a schematic view of a portion of a folding assembly according to an embodiment of the present disclosure;
FIG. 9 is a schematic view of a folding assembly according to an embodiment of the present disclosure in a folded state;
FIG. 10 is a schematic view of another embodiment of a folding assembly according to the present disclosure;
FIG. 11 is a schematic structural diagram of a compound gear provided in an embodiment of the present application;
FIG. 12 is a schematic structural diagram of a connector according to an embodiment of the present disclosure;
FIG. 13 is a schematic structural diagram of another compound gear provided in accordance with an embodiment of the present application;
FIG. 14 is a schematic structural diagram of another connector provided in an embodiment of the present application;
fig. 15 is a schematic view of a disassembled structure of another foldable display terminal according to an embodiment of the present application;
FIG. 16 is a schematic view of the structure of the metal strip of FIG. 15;
FIG. 17 is a schematic structural view of another folding assembly provided in accordance with an embodiment of the present application;
FIG. 18 is an enlarged view of a portion of the elastomeric component of FIG. 17;
FIG. 19 is a schematic structural view of another folding assembly provided in accordance with an embodiment of the present application;
fig. 20 is an enlarged view of a portion of the elastomeric component of fig. 19.
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.
As shown in fig. 1, the folding display terminal 01 includes a flexible display screen 10. The flexible display screen 10 is, for example, 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.
This application embodiment is with folding display terminal outside as an example, and wherein, folding display terminal of outer folding design, when fold condition, flexible display screen is located the equipment outside.
In addition, as shown in fig. 1, the foldable display terminal 01 further includes a folding assembly 20 for carrying the flexible display screen 10.
The folding assembly 20 includes a first housing 201, a second housing 202, and a hinge 203 between the first housing 201 and the second housing 202.
The first housing 201 and the second housing 202 may be a middle frame structure of the electronic device. Illustratively, the first housing 201 is, for example, a main middle frame, and the second housing 202 is, for example, a sub-middle frame.
In some embodiments of the present application, the first housing 201 and the second housing 202 are rotatable about the axis O-O of the rotating shaft 203, respectively.
In order to rotatably connect the first housing 201 and the second housing 202 through the rotating shaft 203, the folding assembly 20 further includes a rotating member 204.
One end of the rotating member 204 is connected to the rotating shaft 203, and the other end is slidably connected to the second housing 202.
The first housing 201 and the second housing 202 can rotate along the axis of the rotation shaft 203, respectively, so as to fold or unfold the flexible display screen 10. As shown in fig. 1 and 2, the flexible display screen 10 may be bent and flattened, wherein fig. 1 and 2 illustrate a folding process of the flexible display screen 10 from 180 ° to 0 ° or a flattening process of the flexible display screen from 0 ° to 180 °.
As shown in fig. 1, when the included angle α between the first housing 201 and the second housing 202 increases to 180 °, the flexible display 10 is in the unfolded state.
Alternatively, as shown in fig. 2, when the included angle α between the first casing 201 and the second casing 202 is 0 °, the flexible display 10 is in the folded state.
It should be noted that the included angle α may have an error of 0 ° or 180 °, and the error range is, for example, ± 5 °, which all fall within the protection scope of the present application.
In some embodiments, the second housing 202 is slidable back and forth relative to the rotation member 204, and a spring is installed between the second housing 202 and the rotation member 204, and the left and right portions of the screen are respectively fixed to the first housing 201 and the second housing 202. In the bending process, the length of the screen is ensured to be unchanged through the movement of the second shell 202, when the screen is closed, the second shell 202 is pulled by the screen to move towards the rotating shaft direction, and when the screen is unfolded, the spring pushes the second shell 202 to move towards the direction far away from the rotating shaft.
However, the second housing 202 is pushed by a spring, and the spring compression amount is larger and larger in the process from the unfolding to the closing, and the flexible display screen is also subjected to larger and larger tension, so that material creep or plastic shear deformation is easily formed for a long time.
The second housing 202 has no rigid support in the moving direction, and the flexible display screen is arched when an external force presses the second housing 202.
To avoid the flexible display arching or reduce the pulling force that the flexible display received, this application embodiment provides an improved folding assembly.
As shown in fig. 3, 4 and 5, the folding assembly 20 is used for carrying the flexible display screen 10. The folding assembly 20 includes: the rotating shaft 203, the first casing 201, the rotating part 204 and the second casing 202, wherein the first casing 201 and the rotating part 204 are rotatably connected through the rotating shaft 203, and the second casing 202 is slidably connected with the rotating part 204.
The sliding connection structure between the rotating member 204 and the second housing 202 is not limited in the embodiments of the present application.
In some embodiments of the present application, as shown in fig. 6, a protruding portion 2020 is disposed on the second housing 202, and a recessed portion 2040 adapted to the protruding portion 2020 is disposed on the rotating member 204, so that when the first housing 201 and the second housing 202 rotate around the rotating shaft, the protruding portion 2020 slides along the recessed portion 2040.
Illustratively, when the first housing 201 and/or the second housing 202 rotate around the rotation axis 203, so that the included angle α between the first housing 201 and the second housing 202 is less than 180 °, the flexible display screen 10 is folded.
During the folding process of the flexible display screen 10, the second housing 202 slides relative to the rotating member 204 in a direction approaching the rotating shaft 203. Therefore, the second shell 202 can slide relative to the rotating piece 204, the pulling force on the flexible display screen is reduced, and the phenomenon that the pulling force on the flexible display screen is too large in the bending process is avoided.
Alternatively, when the first casing 201 and/or the second casing 202 rotate around the rotating shaft 203, so that the included angle α between the first casing 201 and the second casing 202 increases to 180 °, the flexible display screen 10 is in the unfolded state.
During the unfolding process of the flexible display screen 10, the second housing 202 slides relative to the rotating member 204 in a direction away from the rotating shaft 203. Therefore, the second shell 202 can slide relative to the rotating piece 204, the pulling force on the flexible display screen is reduced, and the phenomenon that the pulling force on the flexible display screen is too large in the extending process is avoided.
In the rotating mechanism provided by the embodiment of the application, the second housing 202 is connected with the rotating member 204 in a sliding manner, so that the pulling force of the first housing member, the second housing and the rotating shaft on the flexible display screen is reduced.
Therefore, the protruding part and the concave part are connected together in a sliding mode, the second shell can slide relative to the rotating part, and when the first shell and the rotating part rotate around the rotating shaft, pulling force on the flexible display screen during rotation of the second shell is reduced.
One or more of the convex portions 2020 and the concave portions 2040 may be provided, and the convex portions 2020 and the concave portions 2040 correspond to each other one by one.
In other embodiments of the present disclosure, a sliding rail 2021 is disposed on the concave portion 2040, and a sliding groove 2041 adapted to the sliding rail 2021 is disposed on the convex portion 2020. The slide rail 2021 extends into the slide groove 2041, and the slide groove 2041 is disposed on the surface of the slide rail 2021, for example, so as to limit the movement of the slide rail 2021 along the Z-axis direction and prevent the slide rail 2021 from coming out from the slide groove 2041. Note that the Z-axis direction is a direction perpendicular to the surface of the rotation member 204.
When the first housing 201 and the second housing 202 rotate around the rotation shaft, the slide rail 2021 slides along the slide groove 2041.
Therefore, the relative sliding of the convex part and the concave part can be guided by arranging the sliding rail and the sliding groove, and the stability of the structure is improved.
The embodiment of the present application does not limit the specific structure of the rotating shaft 203. In some embodiments of the present application, the structure of the rotating shaft 203 may include a first rotating shaft 213 and a second rotating shaft 223 coaxially disposed as shown in fig. 5, 7, and 8. At this time, the axes of the first and second rotating shafts 213 and 223 serve as the axes of the rotating shaft 203.
The first rotating shaft 213 is connected to the first housing 201, the second rotating shaft 223 is connected to the rotating member 204, the second rotating shaft 223 can be sleeved on the first rotating shaft 213, and the rotating member 204 is connected to the second rotating shaft 223.
For example, the first rotating shaft 213 and the first housing 201 are both provided with a connecting hole, and the folding assembly further includes: and a fixing member. The fixing member may be inserted into a connection hole between the first rotating shaft 213 and the first housing 201 to fixedly connect the first rotating shaft 213 and the first housing 201. Wherein, the fixing member may be a bolt, a pin, etc., and the fixing member is detachably coupled to the first rotating shaft 213 and the coupling hole of the first housing 201.
Wherein the first rotating shaft 213 and the second rotating shaft 223 rotate in opposite directions. The first rotating shaft 213 rotates the first housing 201 around the axis of the first rotating shaft 213. The second rotating shaft 223 rotates the second housing 202 around the axis of the second rotating shaft 223 through the rotating member 204.
The axes of the first rotating shaft 213 and the second rotating shaft 223 can be used as the axes of the rotating shaft 203, so that the first housing 201 and the second housing 202 can rotate along the axes of the rotating shaft 203 respectively.
It should be noted that the above is an example of the structure of the rotating shaft 203, and the rotating shaft 203 of other structures is not described in detail herein. The present application does not limit the structure of the rotating shaft 203, as long as the first housing 201 and the second housing 202 can be rotatably connected through the rotating shaft 203.
When the folding assembly is in operation, the movement of the second housing 202 must ensure that the flexible display screen is not stretched or squeezed during the bending process. As shown in fig. 7 and fig. 9, the radius of the arc where the neutral layer (or the layer whose length needs to be kept constant) of the flexible display screen is located is assumed to be R1During the bending process, the turning speed of the rotating member 204 is ω, and the moving speed of the second housing 202 is V1Then the following relationship exists:
V1＝R1·ω formula (1)
In some implementations of the present application, as shown in fig. 4, 5, 10, the folding assembly 20 further comprises: the second housing 202 is driven by a combined mechanism of the connecting piece 205 and the compound gear 206, the first end of the connecting piece 205 is connected with the first rotating shaft 213, the first end of the connecting piece 205 and the rotating shaft 203 do not move relatively, and the rotating shaft 203 is fixedly connected with the first housing 201.
In some embodiments of the present application, the connecting element 205 may be a chain, and the first end of the connecting element 205 is, for example, a head of the chain.
Assume that the radius of the arc where the center of the connecting member 205 is located is R2Then the moving speed V of the end of the link 2052The following formula is satisfied:
V2＝R2omega formula (2)
As shown in fig. 11 and 12, the connecting member 205 is located between the rotating shaft and the flexible display screen, for example, so that the circle center of the connecting member 205 is located at the arc radius R2Should be smaller than the radius R of the arc on which the neutral layer (or the layer with the length being required to be ensured to be unchanged) of the flexible display screen is positioned1。
Due to R2＜R1Thus V2＜V1
Due to V2＜V1Therefore, a set of displacement amplification mechanisms is required, and the present embodiment adopts the compound gear 206 as the amplification mechanism, wherein, in some embodiments of the present application, as shown in fig. 13, the compound gear 206 is formed by compounding two gears of a first gear 2061 and a second gear 2062, wherein the first gear 2061 has a pitch circle radius r1The pitch circle radius of the second gear 2062 is r2. As shown in fig. 5 and 11, the center of the composite gear 206 is connected to the sliding member at the end of the connecting member 205 in a rotating pair, the first gear 2061 of the composite gear 206 is engaged with the rack on the second housing 202, and the second gear 2062 of the composite gear 206 is engaged with the rack on the rotating member 204, so that the following relationships exist:
therefore, the moving speed of the second end of the connecting piece is lower than that of the second shell, and the composite gear can be used as a displacement amplification mechanism, so that the moving speed of the second shell is matched with the moving speed of the tail end of the flexible display screen, and the arching of the flexible display screen or the pulling force applied to the flexible display screen is reduced.
The embodiment of the present application does not limit the connection structure of the connection member 205 and the first rotation shaft 213, and the compound gear. In some embodiments of the present application, as shown in fig. 14, a second pin 2051 is disposed on a surface of the connecting element 205 close to the first rotating shaft 213, a hole adapted to the second pin 2051 is disposed on the first rotating shaft 213, and the second pin 2051 is disposed in the hole in a penetrating manner. Therefore, the connecting piece is fixed on the first rotating shaft, and when the first rotating shaft rotates, the connecting piece can rotate along with the first rotating shaft, so that the connecting piece is simple in structure and convenient to disassemble and assemble.
A first pin shaft 2052 is arranged on the surface of the connecting piece 205 close to the second housing 202, and the compound gear 206 is sleeved on the first pin shaft 2052 and is rotatably connected with the first pin shaft 2052. From this, this composite gear can dismantle with this connecting piece and be connected, simple structure, the equipment of being convenient for.
The folding assembly provided by the embodiment of the application adopts the connecting piece 205 and the composite gear 206 as the transmission mechanism, and in the process from flattening to closing or in the process from closing to flattening, the second shell 202 is driven by the transmission mechanism of the connecting piece 205 and the composite gear 206, so that the movement speed of the second shell 202 is matched with the movement speed of the tail end of the flexible display screen.
On this basis, as shown in fig. 15, a part of the flexible display screen 10 is fixed to the first housing 201, a part of the flexible display screen is fixed to the second housing 202, and the rest of the flexible display screen 10 is located between the first housing 201 and the second housing 202.
The first housing 201 and the second housing 202 are used for bearing the flexible display screen 10, ensuring the flatness of the flexible display screen 10, and protecting the non-display surface of the flexible display screen 10. In addition, other electronic components, such as a camera, a headset, an earphone, a button, a battery, and the like, are disposed on the first housing 201 and the second housing 202.
Under the condition that the first casing 201 and the second casing 202 do not have the bending characteristic, the area of the flexible display screen 10 connected with the first casing 201 through the adhesive layer cannot be bent, and the partial area is the first non-bending area 101 as shown in fig. 15.
The area of the flexible display screen 10 connected to the second housing 202 through the adhesive layer cannot be bent under the load of the second housing 202, and this area is the second non-bending area 102 shown in fig. 15.
In addition, in the flexible display 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 this basis, in order to avoid the arching of the bending region 103 caused by the flattening of the flexible display screen after long-term bending, a metal strip and a magnet can be arranged between the bending region 103 and the rotating member 204, so as to attach the bending region to the rotating member 204.
As shown in fig. 15, a metal strip 207 is attached below the bending region of the flexible display, wherein, as shown in fig. 16, the metal strip 207 may include: a plurality of spaced metal sheets arranged along the axis direction of the rotating shaft.
The upper surface of the rotating member 204 is provided with a magnet 208, when the foldable display terminal is turned from the closed state to the unfolded state, the bending area of the flexible display screen falls above the magnet 208 of the rotating member 204, and the arching of the bending area of the flexible display screen can be further reduced by utilizing the adsorption force of the magnet 208 to the metal strip of the bending area.
In addition, as shown in fig. 17, 18, 19, and 20, in order to further reduce the arching of the bending region, an elastic member 209 may be further provided between the rotation member 204 and the second housing 202. Wherein the elastic member may be a torsion spring.
An accommodating groove 2022 is formed in the end surface of the protruding portion 2020, which is close to the concave portion 2040, an elastic component 209 is arranged in the accommodating groove 2022, and the elastic component 209 includes: retaining arm 2091.
As shown in fig. 17 and 18, when the first housing 201 and the second housing 202 are in the expanded state, the abutting arm 2091 is disposed between an end surface of the concave portion 2040 and a bottom of the receiving groove 2022 in an abutting manner, wherein the end surface of the concave portion 2040 is, for example, a slope. The elastic component 209 is used for providing a force to the rotating element 204 towards the rotating shaft direction.
The rotating member 204 and the second housing 202 have a slight virtual position in the relative movement direction, that is, in the flattened state, the rotating member 204 and the second housing 202 have a slight displacement space in the relative movement direction. In this embodiment, an elastic component 209 is disposed between the rotating component and the second housing 202, as shown in fig. 18, when the whole machine is in a flat state, the elastic component 209 has a component along the relative movement direction, so that the second housing 202 has a pushing force towards the rotating shaft direction relative to the rotating component, and due to the virtual position of the rotating component and the second housing 202, the pushing force of the spring will directly act on the flexible display screen, so that the flexible display screen is in a tensioned state, and the screen arching phenomenon can be effectively improved.
As shown in fig. 19 and 20, when the first and second housings are in the folded state or in the state between the folded state and the unfolded state, the retaining arm 2091 is compressed back into the receiving groove 2022, and the retaining arm 2091 is disposed between the side surface of the recess 2040 and the bottom of the receiving groove 2022.
The end surface of the concave portion 2040 is, for example, an inclined surface inclined to the side, so that when the concave portion and the convex portion move relatively, the holding arm 2091 can be more easily compressed into the accommodating groove, and the holding arm 2091 is prevented from obstructing the relative movement of the concave portion and the convex portion.
At this time, when the whole machine is in a non-flattening state, the elastic force of the elastic component 209 has no component force in the relative movement direction, the flexible display screen is not subjected to tension, and the creep of the material caused by the long-time tension of the whole machine in the non-flattening state is avoided.
Therefore, when the whole machine is in a flattening state, the abutting arm abuts against the end face of the concave part, the elastic part has component along the relative movement direction, so that the second shell has thrust towards the rotating shaft direction relative to the rotating part, and due to the virtual position of the rotating part and the second shell, the thrust of the spring can directly act on the flexible display screen, so that the flexible display screen is in a tensioning state, and the phenomenon of arching of the screen can be effectively improved. When the whole machine is in a non-flattening state, the abutting arm abuts against the side face of the concave part, the elastic force of the elastic part has no component force in the relative movement direction, the flexible display screen cannot be under tension, and the creep of materials caused by the fact that the whole machine is under tension for a long time in the non-flattening state is avoided.
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 (12)
1. A folding assembly for carrying a flexible display screen; the folding assembly comprises:
a rotating shaft;
a first housing;
the rotating part is rotatably connected with the first shell through the rotating shaft;
the second shell is connected with the rotating piece in a sliding mode;
further comprising: connecting piece and composite gear, the first end of connecting piece with pivot fixed connection, the second end is equipped with composite gear, composite gear includes: the first gear is meshed with the rack of the second shell, and the second gear is meshed with the rack of the rotating part;
when the first shell and the rotating piece rotate around the rotating shaft, the connecting piece drives the compound gear to move, and the second shell slides relative to the rotating piece.
2. The folding assembly of claim 1 wherein said connecting member has a first pin disposed on a surface thereof adjacent to said second housing, said first gear and said second gear having centers rotatably coupled to said first pin, wherein said first gear has a reference radius r1The radius of the reference circle of the second gear is r2The moving speed of the second shell is V1The moving speed of the second end of the connecting piece is V2，V1、V2Satisfies the following conditions:
3. the folding assembly of claim 1 or 2 wherein the second housing includes a protrusion, and the rotating member has a recess adapted to the protrusion, and the protrusion slides along the recess when the first housing and the rotating member rotate around the rotating shaft.
4. The folding assembly of claim 3, wherein the protrusion is provided with a sliding groove, and the recess is provided with a sliding rail adapted to the sliding groove, or the recess is provided with a sliding rail, and the protrusion is provided with a sliding groove adapted to the sliding rail; when the first shell and the rotating piece rotate around the rotating shaft, the sliding rail slides along the sliding groove.
5. A folding assembly as claimed in claim 3, wherein the sides of said projection adjacent said recess are provided with at least one receiving groove, said receiving groove being provided with a resilient member, said resilient member comprising: a holding arm;
when the first shell and the second shell are in an unfolded state, the abutting arm is abutted between the end face of the concave part and the groove bottom of the accommodating groove, and the elastic part is used for providing force to the rotating part towards the direction of the rotating shaft;
when the first shell and the second shell are in a folded state or in a state between the folded state and the unfolded state, and the elastic component is compressed back into the accommodating groove, the abutting arm is abutted and arranged between the side surface of the concave part and the groove bottom of the accommodating groove.
6. A folding assembly as claimed in claim 5, characterized in that the end faces of said recesses are bevelled.
7. A folding assembly as claimed in any one of claims 1 to 6, wherein said spindle comprises: the first rotating shaft and the second rotating shaft are coaxially arranged, the second rotating shaft is sleeved on the first rotating shaft, and the rotating member is connected with the second rotating shaft.
8. The folding assembly of claim 7, further comprising: the fixing piece, first casing with all be equipped with on the first axis of rotation with the connecting hole of fixing piece adaptation, the fixing piece is worn to locate first casing with in the connecting hole of first axis of rotation.
9. The folding assembly of claim 7 or 8, wherein a second pin is disposed on a surface of the connecting member adjacent to the first rotating shaft, a hole adapted to the second pin is disposed on the first rotating shaft, and the second pin is disposed in the hole.
10. A folding display terminal, comprising a flexible display screen, and a folding assembly according to any one of claims 1-9;
the first non-bending area of the flexible display screen is connected with a first shell in the folding assembly;
the second non-bending area of the flexible display screen is connected with a second shell in the folding assembly;
the bending area of the flexible display screen is opposite to the rotating piece in the folding component;
wherein the bending region is located between the first non-bending region and the second non-bending region.
11. The foldable display terminal of claim 10, wherein the bending area of the flexible display screen is provided with a metal strip, and the rotating member is provided with a magnet for attracting the metal strip.
12. The folding display terminal of claim 11, wherein the metal strip comprises: a plurality of spaced metal sheets arranged along the axis direction of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675868.7A CN113938543A (en) | 2020-07-14 | 2020-07-14 | Folding assembly and folding display terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010675868.7A CN113938543A (en) | 2020-07-14 | 2020-07-14 | Folding assembly and folding display terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113938543A true CN113938543A (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010675868.7A Pending CN113938543A (en) | 2020-07-14 | 2020-07-14 | Folding assembly and folding display terminal |
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| Country | Link |
|---|---|
| CN (1) | CN113938543A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115083273A (en) * | 2022-06-14 | 2022-09-20 | 苏州华星光电技术有限公司 | Folding display device |
| WO2023237096A1 (en) * | 2022-06-10 | 2023-12-14 | 华为技术有限公司 | Folding apparatus and terminal device |
| WO2024140396A1 (en) * | 2022-12-26 | 2024-07-04 | 维沃移动通信有限公司 | Electronic device |
-
2020
- 2020-07-14 CN CN202010675868.7A patent/CN113938543A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023237096A1 (en) * | 2022-06-10 | 2023-12-14 | 华为技术有限公司 | Folding apparatus and terminal device |
| CN115083273A (en) * | 2022-06-14 | 2022-09-20 | 苏州华星光电技术有限公司 | Folding display device |
| WO2024140396A1 (en) * | 2022-12-26 | 2024-07-04 | 维沃移动通信有限公司 | Electronic device |
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