CN220604247U

CN220604247U - Folding display terminal

Info

Publication number: CN220604247U
Application number: CN202321408893.4U
Authority: CN
Inventors: 王春洋; 黄珺; 杨博翔
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2024-03-15
Anticipated expiration: 2033-06-02

Abstract

The embodiment of the application discloses a folding display terminal relates to the technical field of display and is used for enhancing the connection stability between a front shell and a middle frame. The folding display terminal includes: the flexible display screen, center, preceding shell, stopper and shell fragment. The middle frame includes a first groove. The front shell comprises a supporting part and a protecting part, and the supporting part is connected with the first groove. The guard covers a portion of the edge of the flexible display screen. The limiting block is arranged on the middle frame. The supporting part is provided with a first limiting groove, and the limiting block stretches into the first limiting groove. The limiting block and the first limiting groove are used for limiting the front shell to move along the direction perpendicular to the plane where the bearing surface is located and pointing to the protection part from the bearing surface. The elastic sheet is positioned at one side of the supporting part far away from the limiting block. The first elastic part of the elastic sheet is positioned between the bearing surface and the flexible display screen, and the second elastic part of the elastic sheet extends from the first elastic part to the lower part of the flexible display screen and is propped against the part of the supporting part with the first limit groove. The folding display terminal is used for displaying images.

Description

Folding display terminal

Technical Field

The embodiment of the application relates to the technical field of display, in particular to a folding display terminal.

Background

Along with the continuous development of display technology, a folding display terminal gradually becomes a development trend of future mobile electronic products. Under the unfolding state, the folding display terminal can obtain a larger display area, and the film watching effect is improved. The folding display terminal can obtain smaller volume under the folding state, and is convenient for users to carry.

Because bonding is generally achieved between different layers of the folding display terminal through adhesive layers, a staggered layer phenomenon can occur in the folding process of the folding display terminal. In addition, the fixing mode between the flexible display screen and the middle frame of the folding display terminal is different from that of the conventional display terminal, and based on the staggered phenomenon, the cover plate of the flexible display screen and the middle frame in the folding display terminal cannot be completely fixed, so that a staggered space needs to be reserved between the flexible display screen and the middle frame, and a gap exists between the flexible display screen and the middle frame. Currently, the above-mentioned slit is shielded by providing a front case (which may also be called a small a case) on the front surface of the folding display terminal.

However, when the folding display terminal falls, the front case and the middle frame are easily separated, reducing the reliability of the folding display terminal.

Disclosure of Invention

The embodiment of the application provides electronic equipment which is used for enhancing the connection stability between a front shell and a middle frame and improving the reliability of a folding display terminal.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, there is provided a folding display terminal including: the flexible display screen, center, preceding shell, stopper and shell fragment. The flexible display screen is foldable along a set axis that is in a first direction. The middle frame is provided with a bearing surface, and the flexible display screen is positioned on the bearing surface. The middle frame comprises two first grooves which are arranged along the second direction and are positioned at two opposite ends of the bearing surface. The first direction is perpendicular to the second direction. The front shell comprises a supporting part and a protecting part which are connected, wherein the supporting part stretches into the first groove and is connected with the first groove. The guard is positioned over the flexible display and covers a portion of the edge of the flexible display. The limiting block is arranged on the middle frame. The supporting part is provided with a first limit groove matched with the limit block, and the limit block extends into the first limit groove. The limiting block and the first limiting groove are used for limiting the front shell to move along the direction perpendicular to the plane where the bearing surface is located and pointing to the protection part from the bearing surface. The elastic sheet is positioned at one side of the supporting part far away from the limiting block. The elastic piece comprises a first elastic part and a second elastic part which are connected, the first elastic part is positioned between the bearing surface and the flexible display screen, and the second elastic part extends from the first elastic part to the lower part of the flexible display screen and is propped against the part of the supporting part, which is provided with the first limit groove.

In the folding display terminal provided by some embodiments of the present application, by providing the first grooves at two opposite ends of the middle frame along the second direction, the connection (e.g., adhesion) between the front case and the middle frame may be achieved through the support portion extending into the first grooves in the front case. And moreover, the limiting block is arranged on the middle frame, and the first limiting groove is formed in the supporting part of the front shell, so that the limiting block stretches into the first limiting groove, a clamping structure is formed by the limiting block and the first limiting groove, the front shell is limited, and the front shell is limited to displace along the direction perpendicular to the plane where the bearing surface is located and pointing to the protecting part from the bearing surface.

That is, this application embodiment has adopted two kinds of fixed modes (namely, the supporting part stretches into the part in the first slot and is connected between the first slot, the block is with the block between the first spacing groove), the fixed between the preceding shell of joint realization and the center, be favorable to strengthening the connection stability between preceding shell and the center greatly like this, when folding display terminal falls, effectively reduce the risk that the separation appears in preceding shell and center, avoid influencing folding display terminal's normal use, improve folding display terminal's reliability.

Further, one side that keeps away from the stopper through the supporting part sets up the shell fragment, can utilize the supporting part for the second elastic part that offsets with the supporting part produces elastic deformation in the shell fragment, and then can make the second elastic part produce the elasticity to the supporting part, the block effect between first spacing groove and the stopper on the reinforcing supporting part, make more inseparable fixed between preceding shell and the center, further reduce the risk that the separation appears in preceding shell and the center, avoid appearing the circumstances of preceding shell and center separation even, further improve folding display terminal's reliability.

In a possible implementation manner of the first aspect, the second elastic portion includes a connection portion and a U-shaped portion, and the U-shaped portion includes a first plate, a second plate, and a third plate that are sequentially connected. One end of the connecting part is connected with the first elastic part, and the other end extends to the lower part of the flexible display screen and is connected with the first plate of the U-shaped part. The first plate is opposite to the third plate, at least part of the third plate is close to the flexible display screen compared with the first plate, and one end, far away from the second plate, of the third plate is a free end and extends to the lower side of the flexible display screen. Therefore, on the basis of ensuring good elasticity of the elastic sheet, the area occupation ratio of the elastic sheet on the plane of the bearing surface is reduced, the occupation of space is reduced, and the extension space of the free end of the third plate is increased.

In a possible implementation manner of the first aspect, the flexible display screen has a top angle. The shell fragment includes: and the first elastic piece is positioned at the vertex angle and/or the second elastic piece is positioned between two adjacent vertex angles. In the orthographic projection to the plane where the bearing surface is located, an acute angle is formed between the extending direction of the first elastic part of the first elastic piece and the first direction, and the first elastic part is positioned at one side of the second elastic part of the first elastic piece, which is close to the vertex angle; the extending direction of the second elastic part of the first elastic piece is perpendicular to the first direction. In the orthographic projection to the plane where the bearing surface is located, the extending direction of the first elastic part of the second elastic piece is parallel to the first direction, and the extending direction of the second elastic part of the second elastic piece is perpendicular to the first direction. Like this, in first direction, be favorable to reducing the interval between the second elastic component of first shell fragment and the apex angle for stopper, first spacing groove are more near the apex angle, and then strengthen apex angle position department, preceding shell and the connection stability of center. In the second direction, the size of the second elastic sheet is reduced, the area occupation ratio of the second elastic sheet on the plane of the bearing surface is reduced, and the occupation of space is reduced.

In a possible implementation manner of the first aspect, in a natural state, the first elastic portion of the first elastic piece warps, and the warping direction is opposite to the extending direction of the second elastic portion of the first elastic piece. After the flexible display screen is installed, the first elastic part of the first elastic piece can generate elastic deformation. The elastic force generated by the elastic deformation of the first elastic part of the first elastic piece can be transferred to the second elastic part of the first elastic piece, and is overlapped with the elastic force generated by the elastic deformation of the second elastic part of the first elastic piece, so that the force of the first elastic piece to the supporting part is enhanced, and the tight fixing degree of the positions, corresponding to the vertex angles, in the front shell and the middle frame is further enhanced.

In a possible implementation manner of the first aspect, the first trench includes a plurality of first sub-trenches arranged at intervals along the first direction. The middle frame is also provided with a containing groove, the containing groove is positioned between two adjacent first sub-grooves, and the elastic sheet is positioned in the containing groove. In the orthographic projection to the plane where the bearing surface is located, the limiting block and the first limiting groove are located in the containing groove. Therefore, the elastic piece located inside the accommodating groove can be limited, the structural stability of the folding display terminal is improved, and the space occupation of the elastic piece, the limiting block and the first limiting groove in the second direction can be reduced.

In a possible implementation manner of the first aspect, the support portion includes a first side plate and a second side plate. The first side plate extends into the first sub-groove and is connected with the first sub-groove. The second side plate stretches into the accommodating groove and is provided with a first limit groove. Wherein, between first curb plate and the second curb plate, at least part separation sets up. Like this with preceding shell and middle frame carry out the in-process of equipment, can reduce the influence of first curb plate to the second curb plate for the second curb plate produces elastic deformation to the direction of keeping away from the stopper more easily, and then makes the stopper card more easily go into (or stretch into) in the first spacing inslot.

In a possible implementation manner of the first aspect, the second side plate has a size larger than that of the first side plate in a direction perpendicular to a plane in which the carrying surface lies. The space that can set up of first spacing groove can be increased like this, the size of increase first spacing groove, the size of the stopper of increase and first spacing groove looks adaptation, and then be favorable to improving the stability between stopper and the first spacing groove, improve the stability to the spacing of preceding shell.

In a possible implementation manner of the first aspect, a gap is provided between the second side plate and the bottom wall of the accommodating groove. The second elastic part extends into the gap and abuts against one end of the second side plate, which is close to the bottom wall of the accommodating groove. The clamping effect between the first limiting groove and the limiting block is increased, and the front shell and the middle frame are tightly fixed.

In a possible implementation manner of the first aspect, the accommodating groove includes: the first sub-accommodation groove and the second sub-accommodation groove are communicated. The first sub-accommodating groove is used for accommodating the first elastic part, and the second sub-accommodating groove is used for accommodating the second elastic part. The second sub-receiving groove has a depth greater than that of the first sub-receiving groove. Therefore, the elastic sheet can be limited by the first sub-containing groove, and a larger containing space can be provided for the second elastic part, so that the elastic deformation of the second elastic part is prevented from being hindered.

In a possible implementation manner of the first aspect, the second sub-receiving groove has a first side wall, and the first side wall is opposite to the stopper. The first side wall is in a step shape, and a part of the second elastic part is arranged on the step surface. Thus being beneficial to improving the structural stability between the elastic sheet and the middle frame.

In a possible implementation manner of the first aspect, the guard has an inner surface opposite to a part of the edge of the flexible display screen. The folding display terminal further includes: and a conductive layer. The conductive layer includes a first conductive pattern and a second conductive pattern connected to each other. The first conductive pattern is located on the inner surface and contacts a portion of the edge of the flexible display screen. The second conductive pattern is positioned on one side surface of the supporting part, which is close to the elastic sheet, and is contacted with the elastic sheet; the spring plate conducts electricity. Like this, under the circumstances that produces static on flexible display screen, this static alright follow flexible display screen, through first conductive pattern, second conductive pattern, shell fragment transmission to the center in proper order, carry out the ground connection, realize the effective protection of static to can effectively reduce the influence of static to folding display terminal's internal device, improve folding display terminal's display quality and life.

In a possible implementation manner of the first aspect, in a case that the supporting portion includes a first side plate and a second side plate, the second conductive pattern covers a side surface of the second side plate, which is close to the elastic sheet. Thus, the area of the second conductive pattern can be increased, and the reliability of the conductive path between the second elastic part of the elastic sheet and the second conductive pattern can be improved.

In a possible implementation manner of the first aspect, the conductive layer includes a conductive silver paste layer. The conductive silver paste has good conductivity, thus being beneficial to enhancing the electrostatic discharge capability and better realizing the grounding effect.

In a possible implementation manner of the first aspect, the middle box includes: a middle frame body and a connecting piece. The middle frame body has a mounting opening in communication with the first channel. The connecting piece is filled in the mounting opening, a part of the connecting piece is matched with the middle frame main body to form a first groove, and the limiting block and the connecting piece are integrally formed.

In a possible implementation manner of the first aspect, the mounting opening has a second side wall, and the second side wall has a second limit groove. And one part of the connecting piece stretches into the second limiting groove, and the second limiting groove is used for limiting the displacement of the connecting piece along the direction perpendicular to the bearing surface. Therefore, the stability between the connecting piece and the middle frame main body can be improved, the connecting piece and the middle frame main body are prevented from being separated when the folding display terminal falls down, and the situation that the front shell and the middle frame are separated due to the separation of the connecting piece and the middle frame main body is avoided.

In a possible implementation manner of the first aspect, the middle frame further includes two second grooves aligned along the first direction and located at opposite ends of the bearing surface. The two first grooves and the two second grooves are arranged around the bearing surface and the flexible display screen. The supporting part also stretches into the second groove and is connected with the second groove. Thus, the appearance consistency of the edge of the folding display terminal is improved, and the aesthetic property of the folding display terminal is improved.

In a possible implementation manner of the first aspect, the second trench includes a plurality of second sub-trenches arranged at intervals along the second direction. The limiting block is also positioned between two adjacent second sub-grooves. The first limit groove matched with the limit block is also positioned on the part of the supporting part positioned between the two adjacent second sub-grooves.

In a possible implementation manner of the first aspect, the folding display terminal further includes: and the bonding layer is filled in the first groove. The part of the supporting part extending into the first groove is connected with the first groove through the bonding layer.

Drawings

Fig. 1 is a structural diagram of a folding display terminal in a flattened state according to an embodiment of the present application;

fig. 2 is a structural diagram of a folding display terminal in an intermediate state according to an embodiment of the present application;

Fig. 3 is a structural diagram of a folding display terminal in a folded state according to an embodiment of the present application;

fig. 4 is a top view of a foldable display terminal according to an embodiment of the present application;

FIG. 5 is a cross-sectional view of the folded display terminal of FIG. 4 taken along the direction A-A;

FIG. 6 is another cross-sectional view of the folded display terminal shown in FIG. 4 taken along the direction A-A;

fig. 7 is a top view of another foldable display terminal according to an embodiment of the present application;

FIG. 8 is a cross-sectional view of the folding display terminal shown in FIG. 7 taken along the direction B-B;

fig. 9 is an enlarged view of an area C in the folder display terminal shown in fig. 7;

FIG. 10 is an exploded view of the structure of FIG. 9;

FIG. 11 is a cross-sectional view of the folding display terminal shown in FIG. 7 taken along the direction D-D;

fig. 12 is another enlarged view of an area C in the folder display terminal shown in fig. 7;

fig. 13 is an enlarged view of an area E in the folder display terminal shown in fig. 7;

FIG. 14 is an exploded view of the structure shown in FIG. 13;

fig. 15 is a structural diagram of a first elastic sheet according to an embodiment of the present application;

fig. 16 is a structural diagram of a second elastic sheet according to an embodiment of the present application;

FIG. 17 is a partial block diagram of a middle frame according to an embodiment of the present disclosure;

FIG. 18 is an exploded view of the structure of FIG. 17;

FIG. 19 is a partial block diagram of another middle frame according to an embodiment of the present disclosure;

FIG. 20 is an exploded view of the structure shown in FIG. 19;

FIG. 21 is a partial block diagram of a front shell and a conductive layer provided in an embodiment of the present application;

fig. 22 is a partial block diagram of yet another middle frame according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments provided herein are within the scope of the present application.

Wherein, in the description of the embodiments of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one item" or the like, refers to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, and c may represent: a. b, c, a-b, a-c, b-c or a-b-c, wherein a, b and c can be single or multiple.

"and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or b, and may indicate: a alone, a and b together, and b alone, wherein a, b may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship.

In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.

In describing some embodiments, the expression "connected" and its derivatives are used. The term "coupled" is to be interpreted broadly, as referring to, for example, a fixed connection, a removable connection, or a combination thereof; can be directly connected or indirectly connected through an intermediate medium. In addition, the use of "based on" is intended to be open and inclusive in that a process, step, calculation, or other action "based on" one or more of the stated conditions or values may be based on additional conditions or beyond the stated values in practice.

In the embodiments of the present application, "upper", "lower", "left" and "right" are not limited to the orientation in which the components in the drawings are schematically disposed, but it should be understood that these directional terms may be relative concepts, which are used for descriptive and clarity with respect thereto, which may be varied accordingly with respect to the orientation in which the components in the drawings are disposed. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the dimensional relationships between the parts in the drawings do not reflect actual dimensional relationships. Thus, variations from the shape of the drawings due to, for example, manufacturing techniques and/or tolerances, are to be expected. Thus, the exemplary embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Thus, the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of example embodiments.

In addition, the architecture and the scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the architecture and the appearance of a new scenario, the technical solution provided in the embodiments of the present application is equally applicable to similar technical problems.

Some embodiments of the present application provide a folding display terminal. The folding display terminal includes, but is not limited to, a notebook (notebook), a tablet (tablet personal computer), a mobile phone, a laptop (personal digital assistant, PDA), a personal computer, a navigator, a vehicle-mounted device, a wearable device (e.g., a smart watch), an augmented Reality (Augmented Reality, AR) device, a Virtual Reality (VR) device, and any other products or components having a display function. The embodiment of the application does not particularly limit the specific form of the folding display terminal.

For example, the above-described folding display terminal may include a flexible display screen (or a folding screen) and various electronic devices that can change the flexible display screen and its own unfolded or folded form. Under different use demands, the folding display terminal can be unfolded to a flattened state, can also be folded to a folded state and can also be in an intermediate state between the flattened state and the folded state. That is, the folding display terminal has at least two states, i.e., a flattened state and a folded state. In some cases, the folded display terminal may further include a third state, i.e., an intermediate state between the flattened state and the folded state. It will be appreciated that the intermediate state may be any one or more of the states of the folded display terminal between the flattened state and the folded state, rather than the only state.

For convenience of explanation, the following embodiments are exemplified by taking a folding display terminal as a mobile phone, which cannot be considered as a specific limitation of the structural configuration of the folding display terminal. Fig. 1 to 3 are block diagrams of a foldable display terminal (i.e., a mobile phone) according to some embodiments of the present application. Fig. 1 is a structural diagram of a folded display terminal in a flattened state, fig. 2 is a structural diagram of the folded display terminal in an intermediate state, and fig. 3 is a structural diagram of the folded display terminal in a folded state.

In some examples, as shown in fig. 1-3, a folding display terminal 100 includes a flexible display screen 1.

The types of the flexible display screen 1 include various types, and can be selected and set according to actual needs. By way of example, the flexible display 1 may be an organic light emitting diode (organic light emitting diode, OLED) display, a quantum dot light emitting diode (quantum dot light emitting diodes, QLED) display, or the like.

Illustratively, the flexible display 1 includes a display panel and a cover plate disposed on the display panel. The display panel includes a substrate and a film stack structure (including but not limited to pixel circuits, light emitting devices, etc.) disposed on the substrate. The substrate may be made of a flexible resin material including, but not limited to, polyethylene terephthalate (polyethylene terephthalate, PET), and the cover plate may be made of a transparent, flexible material including, but not limited to, polyimide. This allows the substrate and cover to be bendable, thereby allowing the flexible display 1 to have bendable properties. The flexible display screen 1 may be unfolded or folded in response to the folding of the folding display terminal 100.

It is understood that the folding display terminal 100 may be divided into an inner folding device and an outer folding device according to the folding direction of the flexible display screen 1. Wherein the inner folding apparatus means that the flexible display screen 1 is positioned inside the folding display terminal 100 when the folding display terminal 100 is in a folded state, and an image displayed by the flexible display screen 1 cannot be viewed by a user; when the folding display terminal 100 is in the flattened state, the flexible display screen 1 is exposed, and an image displayed by the same can be viewed by a user. The external folding apparatus means that the flexible display screen 1 is located at the outside of the folding display terminal 100 when the folding display terminal 100 is in a folded state, and can be viewed by a user of an image displayed thereby.

As shown in fig. 1, the flexible display 1 includes a plurality of first display portions 11, and each of the first display portions 11 may have a planar shape or a flat plate shape. The plurality of first display portions 11 are arranged in order along the second direction X, for example. The flexible display 1 further comprises at least one second display portion 12, each second display portion 12 being for example strip-shaped and extending in the first direction Y. The second display portion 12 may be located between two adjacent first display portions 11, and the second display portion 12 is connected to the two adjacent first display portions 11 and is in an integral structure. Wherein the second display portion 12 is bendable.

Alternatively, during the folding of the folding display terminal 100, the second display portion 12 may be bent, the first display portion 11 may not be substantially bent, and the first display portion 11 may be rotated about the second display portion 12 connected thereto. Accordingly, the second display portion 12 may be equivalently the set axis. When the folding display terminal 100 is in the flattened state, the flexible display screen 1 is also in the flattened state. The first display portion 11 and the second display portion 12 may be alternately arranged in order along the second direction X. The first direction Y and the second direction X are parallel to the plane where the flexible display screen 1 is located, and the first direction Y and the second direction X are perpendicular.

The number of the first display parts 11 and the number of the second display parts 12 may be determined according to the number of folds of the folding display terminal 100. For example, the folding display terminal 100 is folded only once, and accordingly, the number of the first display parts 11 may be two and the number of the second display parts 12 may be one. As another example, the folding display terminal 100 may be folded twice, and accordingly, the number of the first display parts 11 may be three and the number of the second display parts 12 may be two.

In fig. 1 to 3, the number of first display portions 11 may be two, and the number of second display portions 12 may be one. In this case, if the folding display terminal 100 is an internal folding device, the folding display terminal 100 can be folded toward the side on which the front face of the flexible display screen 1 (i.e., the face on which an image can be displayed) is located. If the folding display terminal 100 is an external folding device, the folding display terminal 100 can be folded toward the side where the back surface of the flexible display screen 1 is located.

In addition, the folding display terminal 100 may be configured to be folded up and down, or may be configured to be folded left and right. These are all within the scope of the present application.

The drawings of the embodiment of the present application illustrate a folding display terminal 100 as an internal folding device, and the flexible display screen 1 includes two first display portions 11 and one second display portion 12, and the folding display terminal 100 is illustrated by taking a left-right folding design as an example, but this should not be construed as a specific limitation of the structural configuration of the folding display terminal.

Fig. 4 illustrates a top view structure of the folding display terminal 100, and fig. 5 illustrates a cross-sectional structure of the folding display terminal 100 shown in fig. 4 in A-A direction.

In some examples, as shown in fig. 4 and 5, the folding display terminal 100 further includes a middle frame 2, and the flexible display screen 1 is located on the middle frame 2. Specifically, as shown in fig. 5, the middle frame 2 has a carrying surface 2A, and the flexible display screen 1 is located on the carrying surface 2A. The middle frame 2 is used for carrying the flexible display screen 1 and protecting the flexible display screen 1.

Illustratively, as shown in fig. 5, the middle frame 2 includes a first sub-middle frame 21, a second sub-middle frame 22, and a rotating member 23 located between the first sub-middle frame 21 and the second sub-middle frame 22. The rotation member 23 is connected to the first sub-frame 21 and the second sub-frame 22, respectively, and the first sub-frame 21 and the second sub-frame 22 are rotatable about the rotation member 23, respectively. The first sub-middle frame 21 and the second sub-middle frame 22 are disposed opposite to the first display part 11, and the rotating member 23 is disposed opposite to the second display part 12.

During the process of folding the display terminal 100, the first sub-middle frame 21 and the second sub-middle frame 22 rotate around the rotation member 23, respectively, and the first sub-middle frame 21 and the second sub-middle frame 22 drive the first display portion 11 to rotate around the second display portion 12.

Optionally, the folding display terminal 100 further includes: and a rear cover positioned on one side of the middle frame 2 far away from the flexible display screen 1, and electronic devices such as a circuit board, a camera, a battery and the like positioned between the middle frame 2 and the rear cover, and a back film, a supporting sheet and the like positioned between the flexible display screen 1 and the bearing surface 2A. Further, the folding display terminal 100 further includes: a protective film on the side of the cover plate remote from the display panel in the flexible display 1.

It will be appreciated that, during the folding of the folded display terminal 100, the thickness of the stacked structures such as the protective film, the flexible display screen 1, the back film, the supporting sheet, etc. are accumulated and the bending radius is different, and the stacked structures are bonded by the adhesive layer, and as the folding angle of the folded display terminal 100 is reduced, a dislocation phenomenon occurs between the stacked structures (for example, the edge of the protective film is closer to the middle frame 2 than the flexible display screen 1, the edge of the flexible display screen 1 exceeds the edge of the supporting sheet, the edge of the cover plate in the flexible display screen 1 exceeds the edge of the display panel, etc.), and the dislocation phenomenon occurs at opposite ends of the middle frame 2 in the second direction X (i.e., the direction perpendicular to the folding direction of the middle frame). Based on the staggered layer phenomenon, the different stacking structures and the middle frame 2 cannot be completely fixed, a staggered layer space needs to be reserved between the different stacking structures and the middle frame 2, and accordingly gaps exist between the different stacking structures and the middle frame 2.

In some examples, as shown in fig. 4 and 5, the folding display terminal 100 further includes a front case 3. The front case 3 is located at least at opposite ends of the middle frame 2 in the second direction X and covers a portion of the edge of the flexible display screen 1 to block the gap.

In one possible embodiment, the front shell 3 and the middle frame 2 are fixed by adopting an adhesive manner (for example, glue is injected between the front shell 3 and the middle frame 2 by adopting a dispensing process). However, when the folding display terminal 100 falls, a risk of degumming easily occurs, resulting in separation of the front case 3 and the middle frame 2, affecting normal use of the folding display terminal 100 (also referred to as a complete machine), and reducing reliability of the folding display terminal 100.

Fig. 6 schematically illustrates another cross-sectional structure of the folding display terminal 100 shown in fig. 4 along the A-A direction.

Based on this, in some embodiments of the present application, as shown in fig. 6, the middle frame 2 includes at least two first grooves 2B. The two first grooves 2B are arranged along the second direction X and are located at opposite ends of the carrying surface 2A. Wherein, in connection with fig. 4 and 6, each first trench 2B extends, for example, in the first direction Y. The dimension of the first groove 2B in the first direction Y is, for example, the same as or substantially the same as the dimension of the middle frame 2 in the first direction Y. The depth of the first trench 2B, and the dimension of the first trench 2B in the second direction X may be selected according to actual needs.

With continued reference to fig. 6, the front case 3 includes a support portion 31 and a guard portion 32 connected. The supporting portion 31 extends into the first groove 2B and is connected to the first groove 2B. The guard 32 is located above the flexible display screen 1 and covers a part of the edge of the flexible display screen 1. Meanwhile, the protecting portion 32 presses against a portion of the edge of the flexible display screen 1 covered by the protecting portion to ensure that the structure (such as the flexible display screen 1, the back film, the supporting sheet, the circuit board, etc.) located on the middle frame 2 can be relatively stably located in the space defined by the middle frame 2 and the front shell 3, so as to prevent the structure located on the middle frame 2 from being lifted out of the middle frame 2.

It will be appreciated that the number of first grooves 2B is two, and therefore, the front case 3 may be divided into two sub-cases disposed independently of each other, each sub-case being disposed corresponding to one first groove 2B. Correspondingly, the parts of the sub-shells extending into the corresponding first grooves 2B together form the supporting parts 31, and the parts of the sub-shells covering part of the edges of the flexible display screen 1 together form the protecting parts 32.

Fig. 7 illustrates a top view structure of another folding display terminal 100, and fig. 8 illustrates a cross-sectional structure of the folding display terminal 100 shown in fig. 7 in the B-B direction.

As shown in fig. 8, the middle frame 2 further includes two second grooves 2C. The two second grooves 2C are aligned along the first direction Y and are located at opposite ends of the carrying surface 2A. Wherein, in connection with fig. 7 and 8, each second trench 2C extends, for example, in the second direction X. The dimension of the second groove 2C in the second direction F is, for example, the same as or substantially the same as the dimension of the middle frame 2 in the second direction X. The depth of the second trench 2C, and the dimension of the second trench 2C in the first direction Y may be selected according to actual needs.

Referring to fig. 6, 7 and 8, the two first grooves 2B and the two second grooves 2C are disposed around the carrying surface 2A and the flexible display screen 1. The supporting portion 31 also extends into the second groove 2C and is connected to the second groove 2C. Accordingly, the guard portion 32 also covers a portion of the edge of the flexible display screen 1 opposite to the second groove 2C. That is, the front case 3 is disposed around the carrying surface 2A and the flexible display screen 1. This is advantageous in improving the uniformity of the appearance of the edges of the folding display terminal 100 and improving the aesthetic appearance of the folding display terminal 100.

It can be understood that, since the first sub-middle frame 21 and the second sub-middle frame 22 need to rotate around the rotating member 23, the second groove 2C is opened at the rotating member 23, and the front housing 3 is also opened at the rotating member 23 and divided into two sub-housings. In an orthographic projection onto a plane in which the carrying surface 2A lies, each sub-shell of the front shell 3 has a U-shape.

Fig. 9 illustrates an enlarged structure of an area C in the folding display terminal 100 illustrated in fig. 7, and fig. 10 illustrates an exploded structure of the structure illustrated in fig. 9. Fig. 11 schematically illustrates a cross-sectional structure of the folding display terminal 100 shown in fig. 7 in the D-D direction. Fig. 12 schematically illustrates an enlarged structure of the middle frame 2, the front case 3, the stopper 4, and the elastic piece 5 in the region C of the folding display terminal 100 shown in fig. 7. Fig. 13 illustrates an enlarged structure of the middle frame 2, the front case 3, the stopper 4, and the elastic piece 5 in the region E of the folding display terminal 100 shown in fig. 7, and fig. 14 illustrates an exploded structure of the structure shown in fig. 13.

In some examples, as shown in fig. 9 to 12 and 14, the folding display terminal 100 further includes a stopper 4, and the stopper 4 is disposed on the middle frame 2. The supporting portion 31 has a first limiting groove 31A, and the first limiting groove 31A is adapted to the limiting block 4. As shown in fig. 9, 11 and 12, the stopper 4 extends into the first stopper groove 31A.

Since the supporting portion 31 is connected to the first groove 2B, and the first limiting groove 31A is located on the supporting portion 31, the limiting block 4 is located at two opposite ends of the bearing surface 2A along the second direction X. The first stopper grooves 31A and the stoppers 4 are provided, for example, in one-to-one correspondence. In the second direction X, one or more stoppers 4 are provided at each of the opposite ends of the carrying surface 2A, for example.

Alternatively, the shape of the first stopper groove 31A and the shape of the stopper 4 are the same or similar. For example, the shape of the first stopper groove 31A and the stopper 4 are a stepped shape, an approximately stepped shape, a columnar shape, an approximately columnar shape, or the like. The size of the first limiting groove 31A and the size of the limiting block 4 are, for example, substantially equal, or the size of the first limiting groove 31A is slightly larger than the size of the limiting block 4. This ensures that the stopper 4 can more stably extend into the first stopper groove 31A.

For example, the supporting portion 31 has an outer surface perpendicular to the bearing surface 2A, and the first limiting groove 31A is located on the outer surface and extends toward the inside of the supporting portion 31 in a direction parallel to the bearing surface 2A (for example, the second direction X). Correspondingly, the limiting block 4 extends toward the inside of the first limiting groove 31A along a direction (for example, the second direction X) parallel to the bearing surface 2A.

Here, the stopper 4 and the first stopper groove 31A are provided for restricting displacement of the front case 3 in a direction perpendicular to the plane of the bearing surface 2A and directed from the bearing surface 2A to the guard portion 32. That is, after the stopper 4 extends into the first limiting groove 31A, in the case where the front case 3 is displaced in the direction perpendicular to the plane of the carrying surface 2A and directed from the carrying surface 2A to the guard portion 32 (i.e., in the case where the front case 3 moves upward in the direction perpendicular to the plane of the carrying surface 2A and separates from the middle frame 2 as shown in fig. 9), the outer surface of the stopper 4 will abut against the side wall of the first limiting groove 31A, giving the front case 3 a downward force in the direction perpendicular to the plane of the carrying surface 2A, preventing the front case 3 from moving upward in the direction perpendicular to the plane of the carrying surface 2A and preventing the front case 3 and the middle frame 2 from separating.

In some examples, as shown in fig. 9 to 14, the folding display terminal 100 further includes a dome 5. The spring plate 5 is located at one side of the supporting portion 31 away from the limiting block 4. That is, the elastic piece 5 and the stopper 4 are respectively located at two opposite sides of the supporting portion 31.

Referring to fig. 9 and 10, the elastic piece 5 includes a first elastic portion 51 and a second elastic portion 52 connected to each other. The first elastic portion 51 is located between the carrying surface 2A and the flexible display screen 1, and is covered by the flexible display screen 1. The second elastic portion 52 extends downward from the flexible display panel 1 from the first elastic portion 51, and abuts against a portion of the supporting portion 31 having the first limiting groove 31A. The extending direction of the second elastic part 52 is away from the bearing surface 2A and is arranged at an acute angle with the bearing surface 2A; and the extending direction of the second elastic portion 52 is disposed at an acute angle to the extending direction of the supporting portion 31 (for example, a direction perpendicular to the bearing surface 2A). The elastic pieces 5 and the first limiting grooves 31A are arranged in a one-to-one correspondence manner.

The spring plate 5 has elasticity. After the middle frame 2, the flexible display screen 1, the front shell 3 and the elastic sheet 5 are assembled, the limiting block 4 is clamped into the first limiting groove 31A, the second elastic part 52 abuts against the part of the supporting part 31 with the first limiting groove 31A, and is elastically deformed, so that an elastic force is given to the part of the supporting part 31 with the first limiting groove 31A. The direction of the elastic force is directed to the supporting portion 31 by the second elastic portion 52, and an included angle is formed between the second elastic portion and the extending direction of the supporting portion 31. The supporting portion 31 moves towards the direction close to the limiting block 4 under the action of the elastic force, so that the contact area and the interaction force between the limiting block 4 and the first limiting groove 31A are increased, and the connection stability between the front shell 3 and the middle frame 2 is enhanced.

Thus, in the folding display terminal 100 provided in some embodiments of the present application, by providing the first grooves 2B at opposite ends of the middle frame 2 in the second direction X, connection (e.g., adhesion) between the front case 3 and the middle frame 2 may be achieved by the supporting portions 31 of the front case 3 protruding into the first grooves 2B. Moreover, by arranging the stopper 4 on the middle frame 2 and arranging the first limit groove 31A on the supporting portion 31 of the front shell 3, the stopper 4 extends into the first limit groove 31A, so that the stopper 4 and the first limit groove 31A form a clamping structure, the front shell 3 is limited, and displacement of the front shell 3 in a direction perpendicular to the plane where the bearing surface 2A is located and directed to the protecting portion 32 by the bearing surface 2A is limited.

That is, this application embodiment has adopted two kinds of fixed modes (namely, the supporting part 31 stretches into the part in the first slot 2B and is connected between the first slot 2B, the block 4 and the block between the first spacing groove 31A), the fixed between the front shell 3 and the middle frame 2 of joint realization, be favorable to strengthening the connection stability between front shell 3 and the middle frame 2 greatly like this, when folding display terminal 100 falls, effectively reduce the risk that front shell 3 and middle frame 2 appear separating, avoid influencing folding display terminal 100's normal use, improve folding display terminal 100's reliability.

Further, through setting up shell fragment 5 in the one side that support portion 31 kept away from stopper 4, can utilize support portion 31 for the second elastic part 52 that offsets with support portion 31 in the shell fragment 5 produces elastic deformation, and then can make second elastic part 52 produce the elasticity to support portion 31, strengthen the block effect between first spacing groove 31A and the stopper 4 on the support portion 31, make between preceding shell 3 and the center 2 more inseparable fixed, further reduce preceding shell 3 and center 2 and appear the risk of separation, even avoid appearing preceding shell 3 and center 2 circumstances of separation, further improve folding display terminal 100's reliability.

In some embodiments, as shown in fig. 10 and 14, the second elastic portion 52 of the elastic sheet 5 includes a connection portion 521 and a U-shaped portion 522, and the U-shaped portion 522 includes a first plate 5221, a second plate 5222, and a third plate 5223 connected in sequence.

The connection portion 521 is, for example, flat and extends downward of the flexible display panel 1. The extending direction of the connecting portion 521 is perpendicular to the plane of the carrying surface 2A, for example. One end of the connecting portion 521, which is close to the carrying surface 2A, is connected to the first elastic portion 51, and a connection position between the connecting portion 521 and the first elastic portion 51 is, for example, a rounded corner. The end of the connection portion 521 remote from the carrying surface 2A is connected to the first plate 5221, and the connection portion 521 and the first plate 5221 are, for example, rounded.

The first plate 5221 is, for example, flat and has a plane parallel to the plane of the carrying surface 2A. The connection portion 521 is provided so that there is a certain height difference between the first plate 5221 and the first elastic portion 51 (or between the first plate 5221 and the bearing surface 2A).

The third plate 5223 is opposite to the first plate 5221, that is, the front projection of the third plate 5223 on the plane of the carrying surface 2A and the front projection of the first plate 5221 on the plane of the carrying surface 2A have overlapping portions. The second plate 5222 is connected between the third plate 5223 and the first plate 5221, separating the third plate 5223 from the first plate 5221, with at least a portion of the third plate 5223 being located above the first plate 5221 and closer to the flexible display screen 1 than the first plate 5221. The end of the third plate 5223 away from the second plate 5222 is a free end and extends downward of the flexible display screen 1.

For example, as shown in fig. 15, a portion of the third plate 5223 opposite to the first plate 5221 is located above the first plate 5221 and is closer to the flexible display screen 1 than the first plate 5221, and another portion gradually extends below the first plate 5221. As another example, as shown in fig. 16, the third plates 5223 are all entirely located above the first plates 5221 and are closer to the flexible display screen 1 than the first plates 5221. In fig. 16, (a) and (b) illustrate the structures of the spring plate 5 under different viewing angles, respectively.

By providing the second plate 5222, the height difference between the third plate 5223 and the first elastic portion 51 (or between the third plate 5223 and the bearing surface 2A) can be reduced, the extension space of the free end of the third plate 5223 can be increased, and the abutting position between the free end of the third plate 5223 and the supporting portion 31 can be set as required, so that the spring 5 can secure the reinforcing effect on the engagement between the stopper 4 and the first stopper groove 31A.

The second plate 5222 is, for example, arc-shaped (or C-shaped) to enhance the elasticity of the spring 5 and avoid stress concentration.

The connection between the second plate 5222 and the first plate 5221, and the connection between the connection 521 and the first plate 5221 are adjacent to each other with respect to the first plate 5221. In the front projection onto the plane of the carrying surface 2A, the free ends of the first elastic portion 51 and the third plate 5223 are located on opposite sides of the first plate 5221, respectively. Thus, the area occupation ratio of the elastic sheet 5 on the plane of the bearing surface 2A is reduced, and the occupation of space is reduced.

The structure of the spring 5 is not limited to this, and the locking action between the first limiting groove 31A and the limiting block 4 may be enhanced.

It will be appreciated that the flexible display screen 1 has four corners 1A, which corners 1A are, for example, a first corner 1A-1, a second corner 1A-2, a third corner 1A-3, a fourth corner 1A-4, respectively, as shown in fig. 7. The setting positions of the limiting block 4 and the first limiting groove 31A include various setting positions, for example, the setting positions can be set at the vertex angle 1A, and the setting positions can also be set between two adjacent vertex angles 1A (for example, between the first vertex angle 1A-1 and the second vertex angle 1A-2, or between the third vertex angle 1A-3 and the fourth vertex angle 1A-4), and can be specifically set according to actual needs.

Correspondingly, the setting positions of the elastic sheet 5 include various kinds, and can be specifically determined according to the setting positions of the limiting block 4 and the first limiting groove 31A. Here, the size of the space for accommodating the spring 5 may be different at different positions, and thus the shape of the spring 5 may be different. Fig. 15 and 16 illustrate the structure of a spring 5, respectively.

In some embodiments, as shown in fig. 15 and 16, the spring 5 includes a first spring 5A and/or a second spring 5B. The first elastic piece 5A is located at the vertex angle 1A of the flexible display screen 1, and the second elastic piece 5B is located between two adjacent vertex angles 1A.

In some examples, in an orthographic projection onto a plane of the bearing surface 2A, the extending direction of the first elastic portion 51 of the first elastic piece 5A forms an acute angle with the first direction Y, and the second elastic portion 52 of the first elastic piece 5A is located on a side near the vertex angle 1A. The extending direction of the second elastic portion 52 of the first elastic piece 5A is perpendicular to the first direction Y.

That is, the extending direction of the second elastic portion 52 of the first elastic piece 5A is perpendicular to the extending direction of the first groove 2B. The first elastic portion 51 of the first elastic piece 5A is closer to the apex angle 1A at the position where it is located than the second elastic portion 52 of the first elastic piece 5A. The first elastic portion 51 of the first elastic piece 5A faces the apex angle 1A at the position where it is located.

In this way, in the first direction Y, the distance between the second elastic portion 52 of the first elastic piece 5A and the top corner 1A is reduced, so that the limiting block 4 and the first limiting groove 31A are closer to the top corner 1A, and the connection stability of the front shell 3 and the middle frame 2 at the position of the top corner 1A is further enhanced.

As illustrated in fig. 12 and 15, the first elastic portion 51 of the first elastic piece 5A is warped in a natural state, and the warping direction is opposite to the extending direction of the second elastic portion 52 of the first elastic piece 5A.

The "natural state" herein refers to, for example, a state in which the first elastic piece 5A is not stressed. After the first elastic piece 5A is placed in the middle frame 2, the first elastic portion 51 of the first elastic piece 5A warps upward of the bearing surface 2A, and the second elastic portion 52 of the first elastic piece 5A extends downward of the bearing surface 2A.

In this case, after the flexible display screen 1 is installed, the flexible display screen 1 may apply a downward force to the first elastic portion 51 of the first elastic sheet 5A, so that the first elastic portion 51 of the first elastic sheet 5A is elastically deformed. The elastic force generated by the elastic deformation of the first elastic portion 51 of the first elastic piece 5A can be transmitted to the second elastic portion 52 of the first elastic piece 5A, and superimposed with the elastic force generated by the elastic deformation of the second elastic portion 52 of the first elastic piece 5A, the force of the first elastic piece 5A to the supporting portion 31 is enhanced.

It is understood that, when the folding display terminal 100 is dropped, the collision phenomenon is more likely to occur at the position corresponding to the corner 1A in the folding display terminal 100, and separation is more likely to occur at the position corresponding to the corner 1A in the front case 3 and the center 2. According to the embodiment of the application, the first elastic piece 5A is arranged, so that the clamping effect between the first limiting groove 31A at the position of the top angle 1A and the limiting block 4 can be greatly increased, the tight fixing degree of the position corresponding to the top angle 1A in the front shell 3 and the middle frame 2 is further enhanced, and the separation of the position corresponding to the top angle 1A in the front shell 3 and the middle frame 2 is avoided when the folding display terminal 100 falls.

In other examples, as shown in fig. 13, in the orthographic projection onto the plane of the carrying surface 2A, the extending direction of the first elastic portion 51 of the second elastic piece 5B is parallel to the first direction Y, and the extending direction of the second elastic portion 52 of the second elastic piece 5B is perpendicular to the first direction Y.

That is, the extending direction of the first elastic portion 51 of the second elastic piece 5B is parallel to the extending direction of the first groove 2B. The extending direction of the second elastic portion 52 of the second elastic piece 5B is perpendicular to the extending direction of the first groove 2B.

In this way, in the second direction X, the size of the second elastic piece 5B is reduced, so as to reduce the area occupation ratio of the second elastic piece 5B on the plane of the bearing surface 2A, and reduce the occupation of space.

For example, as shown in fig. 13 and 16, in a natural state, the first elastic portion 51 of the second elastic piece 5B has a flat plate shape.

In some embodiments, as shown in fig. 10 and 14, the middle frame 2 further has a receiving groove 2D for receiving the elastic piece 5. In the orthographic projection onto the plane of the carrying surface 2A, the shape of the accommodating groove 2D is adapted to the shape of at least a part of the spring 5.

The first grooves 2B include a plurality of first sub-grooves 2B-1 arranged at intervals along the first direction Y, and the accommodating groove 2D is located between adjacent two of the first sub-grooves 2B-1. That is, the first groove 2B is divided by providing the accommodation groove 2D. Here, the number of the first sub-grooves 2B-1 at the same end of the carrying surface 2A may be determined according to the number of the receiving grooves 2D.

Optionally, the accommodating groove 2D and the adjacent first sub-groove 2B-1 are communicated.

In the orthographic projection to the plane of the carrying surface 2A, the limiting block 4 and the first limiting groove 31A are located in the accommodating groove 2D. Along the first direction Y, the limiting block 4 and the first limiting groove 31A are located between two adjacent first sub-grooves 2B-1, but are not arranged in the first sub-grooves 2B-1, so that the space occupied by the first sub-grooves 2B-1 is avoided.

Through setting up holding tank 2D between two adjacent first sub-slot 2B-1, with shell fragment 5, stopper 4 and first spacing groove 31A setting up in holding tank 2D place department, both can carry out spacingly to the shell fragment 5 that is located its inside, avoid shell fragment 5 to produce the displacement in being on a parallel with the plane that loading face 2A is located, improve folding display terminal 100's structural stability, can reduce shell fragment 5, stopper 4 and first spacing groove 31A again and occupy in the space of second direction X.

In some examples, as shown in fig. 10 and 14, the support 31 includes a first side plate 311 and a second side plate 312. The first side plate 311 extends into the first sub-groove 2B-1 and is connected to the first sub-groove 2B-1. The front projection of the first side plate 311 on the plane of the carrying surface 2A is located in the front projection range of the first sub-groove 2B-1 on the plane of the carrying surface 2A. The second side plate 312 protrudes into the accommodation groove 2D. The second side plate 312 is located in the front projection range of the accommodating groove 2D on the plane of the bearing surface 2A.

The first limiting groove 31A is located on the second side plate 312, and is at least partially separated between the second side plate 312 and the first side plate 311.

For example, as shown in fig. 14, the end of the second side plate 312 remote from the guard portion 32 and the end of the first side plate 311 remote from the guard portion 32 are separated from each other. The second side plate 312 is connected to the first side plate 311 at an end near the guard 32. That is, a gap is provided between an end of the second side plate 312 away from the guard 32 and an end of the first side plate 311 away from the guard 32.

As another example, the second side plate 312 and the first side plate 311 are completely disconnected and not directly connected.

By providing at least a partial separation between the second side plate 312 and the first side plate 311, the connection area between the second side plate 312 and the first side plate 311 can be reduced such that the second side plate 312 is similarly suspended from the first side plate 311. In the process of assembling the front shell 3 and the middle frame 2, the influence of the first side plate 311 on the second side plate 312 can be reduced, so that the second side plate 312 is easier to elastically deform in a direction away from the limiting block 4, and the limiting block 4 is easier to be clamped into (or extend into) the first limiting groove 31A.

As illustrated in fig. 10 and 14, the second side plate 312 has a larger size than the first side plate 311 in a direction perpendicular to the plane of the carrying surface 2A. The second side plate 312 is more convex than the first side plate 311 with respect to the guard 32.

The settable space of the first limiting groove 31A can be increased, the size of the first limiting groove 31A can be increased conveniently, the size of the limiting block 4 matched with the first limiting groove 31A can be increased, stability between the limiting block 4 and the first limiting groove 31A can be improved, and stability of limiting the front shell 3 can be improved.

As illustrated in fig. 11 and 12, for example, a gap is provided between the second side plate 312 and the bottom wall of the accommodation groove 2D. That is, the second side plate 312 does not touch the bottom wall of the accommodating groove 2D. The second elastic portion 52 extends into the gap and abuts against one end of the second side plate 312 near the bottom wall of the accommodating groove 2D.

At this time, the direction of the elastic force generated by the second elastic portion 52 is perpendicular to the plane of the bearing surface 2A, or has a small included angle with the direction perpendicular to the plane of the bearing surface 2A.

This is advantageous to increase the engagement between the first limiting groove 31A and the limiting block 4, so that the front case 3 and the middle frame 2 are more tightly fixed.

In some examples, as shown in fig. 10 and 14, the accommodation groove 2D includes: the first sub-accommodating groove 2D-1 and the second sub-accommodating groove 2D-2 are communicated. Wherein the first sub-receiving groove 2D-1 is for receiving the first elastic part 51, and the second sub-receiving groove 2D-2 is for receiving the second elastic part 52. The depth of the second sub-receiving groove 2D-2 is greater than the depth of the first sub-receiving groove 2D-1. The distance between the bottom wall of the second sub-receiving groove 2D-2 and the plane of the bearing surface 2A is larger than the distance between the bottom wall of the first sub-receiving groove 2D-1 and the plane of the bearing surface 2A.

Illustratively, the shape of the first sub-receiving groove 2D-1 is adapted to the shape of the first elastic portion 51 in an orthographic projection to a plane in which the carrying surface 2A is located. In the orthographic projection onto the plane of the carrying surface 2A, the shape of the second sub-receiving groove 2D-2 is similar to the shape of the second elastic portion 52, and the size of the second sub-receiving groove 2D-2 is larger than the size of the second elastic portion 52.

Therefore, the elastic piece 5 can be limited by the first sub accommodating groove 2D-1, and a larger accommodating space can be provided for the second elastic part 52, so that the elastic deformation of the second elastic part 52 is prevented from being hindered.

Further, as shown in fig. 12, the second sub-receiving groove 2D-2 has a first sidewall W1, and the first sidewall W1 is opposite to the stopper 4. The first sidewall W1 is stepped, and a portion of the second elastic portion 52 is disposed on the stepped surface.

For example, in the case where the second elastic portion 52 includes the connection portion 521 and the U-shaped portion 522, as shown in fig. 10 and 12, the first plate 5221 of the U-shaped portion 522 is placed on and in contact with the stepped surface, and the connection portion 521, which is connected to the first plate 5221, and the second plate 5222 are placed above the stepped surface.

This is advantageous in improving the structural stability between the elastic piece 5 and the middle frame 2.

Optionally, the second sub-receiving groove 2D-2 is located between two adjacent first sub-grooves 2B-1 and is in communication with the adjacent first sub-grooves 2B-1.

It can be understood that the middle frame 2 can be integrally formed, or can be formed by combining a plurality of parts, and can be specifically selected and arranged according to actual needs. Here, fig. 17 and 19 respectively illustrate a partial structure of the middle frame 2, fig. 18 illustrates an exploded structure of the middle frame 2 illustrated in fig. 17, and fig. 20 illustrates an exploded structure of the middle frame 2 illustrated in fig. 19.

In some embodiments, as shown in fig. 17-20, the center 2 includes a center body 24 and a connector 25. The material of the middle frame body 24 is, for example, a metal material, and the material of the connecting piece 25 is, for example, a plastic material.

The center body 24 has a mounting opening 2E, and the mounting opening 2E communicates with the first groove 2B. For example, the mounting opening 2E penetrates the center main body 24 itself. The shape, size, etc. of the mounting opening 2E may be selected and set according to actual needs. The connecting member 25 is filled in the mounting opening 2E, and a part of the connecting member 25 is engaged with the center main body 24 to form the first groove 2B. In the case where the center 2 has the receiving groove 2D, the first sub receiving groove 2D-1 is located at the center main body 24, for example, and a part of the second sub receiving groove 2D-2 is located at the center main body 24, for example, and another part is located at the connecting member 25, for example. That is, the other portion of the connector 25 cooperates with the center main body 24 to form the accommodation groove 2D.

Illustratively, the stopper 4 is located on the connecting member 25, and the stopper 4 is integrally formed with the connecting member 25.

This not only facilitates maintenance between the connector 25 and the center body 24, but also facilitates weight reduction of the center 2 and weight reduction of the folding display terminal 100.

In some examples, as shown in fig. 17 and 18, the mounting opening 2E has a second side wall W2 with a second stopper groove 2F thereon. The depth direction of the second limiting groove 2F is parallel to the plane of the bearing surface 2A, for example. Wherein, a part of the connecting piece 25 stretches into the second limiting groove 2F, and the second limiting groove 2F is used for limiting the displacement of the connecting piece 25 along the direction vertical to the bearing surface 2A.

A part of the connecting piece 25 extending into the second limiting groove 2F fills the second limiting groove 2F. In the case where the connecting member 25 is displaced in the direction perpendicular to the carrying surface 2A, the second limiting groove 2F generates a force against the connecting member 25 in the direction opposite to the displacement direction of the connecting member 25, and prevents the connecting member 25 from being separated from the center main body 24, thereby preventing the movement of the connecting member 25.

This is advantageous in improving stability between the connection member 25 and the middle frame body 24, avoiding separation of the connection member 25 and the middle frame body 24 when the folding display terminal 100 falls, and further avoiding separation of the front case 3 and the middle frame 2 due to separation of the connection member 25 and the middle frame body 24, and in improving reliability of the folding display terminal 100.

It can be appreciated that static electricity is generated on the surface of the flexible display screen 1 due to friction during the use of the folding display terminal 100, and the static electricity is likely to damage the internal devices of the folding display terminal 100, reducing the display quality and the service life of the folding display terminal 100. Therefore, electrostatic discharge (electrostatic discharge, ESD) is required for the flexible display panel 1.

In some embodiments, as shown in fig. 11, the guard 32 has an inner surface 32A, the inner surface 32A being opposite a portion of the edge of the flexible display screen 1. Specifically, the inner surface 32A is located on the side of the guard portion 32 near the flexible display screen 1. At this time, the folding display terminal 100 further includes a conductive layer 6, and the conductive layer 6 includes a first conductive pattern 61 and a second conductive pattern 62 connected to each other.

The first conductive pattern 61 is located on the inner surface 32A, that is, the first conductive pattern 61 is located between the shielding portion 32 and the flexible display screen 1. The first conductive pattern 61 is in contact with a portion of the edge of the flexible display screen 1 such that a conductive path can be formed between the first conductive pattern 61 and the flexible display screen 1. Of course, a certain distance may be provided between the first conductive pattern 61 and a part of the edge of the flexible display 1, so long as the conductive path between the first conductive pattern 61 and the flexible display 1 is not affected.

The second conductive pattern 62 is located on a surface of the supporting portion 31 near the spring 5 and contacts the spring 5. That is, the second conductive pattern 62 is located between the supporting portion 31 and the elastic piece 5, and the second elastic portion 52 of the elastic piece 5 abuts against the second conductive pattern 62 and abuts against the supporting portion 31 through the second conductive pattern 62. Wherein the spring sheet 5 is conductive. Thus, a conductive path is formed between the second conductive pattern 62 and the spring 5.

Illustratively, the middle frame 2 may serve as a ground. Since the first elastic portion 51 of the elastic piece 5 is in contact with the middle frame 2, a conductive path is possible between the elastic piece 5 and the middle frame 2.

In this way, under the condition that static electricity is generated on the flexible display screen 1, the static electricity can be transmitted to the middle frame 2 from the flexible display screen 1 through the first conductive pattern 61, the second conductive pattern 62 and the elastic sheet 5 in sequence to be grounded, so that effective protection of the static electricity is realized, the influence of the static electricity on the internal devices of the folding display terminal 100 can be effectively reduced, and the display quality and the service life of the folding display terminal 100 are improved.

The number of the second conductive patterns 62 is, for example, the same as the number of the elastic pieces 5, and the second conductive patterns 62 are disposed in one-to-one correspondence with the elastic pieces 5. This is advantageous in increasing the path of static electricity from the first conductive pattern 61 into the middle frame 2, that is, increasing the static electricity conducting path, so that static electricity at different positions in the flexible display screen 1 can be grounded in a shorter path, which is advantageous in improving the effect of static electricity protection.

In some examples, as shown in fig. 21, in the case where the supporting portion 31 includes the first side plate 311 and the second side plate 312, the second conductive pattern 62 covers a side surface of the second side plate 312 near the dome 5. The second conductive pattern 62 is disposed at a distance from the first side plate 311, and does not cover the first side plate 311. Further, other portions of the conductive layer 6 do not substantially cover the first side plate 311. For example, the conductive layer 6 is located only on the guard 32 and the second side plate 312.

Illustratively, the second conductive pattern 62 has the same shape as the second side plate 312 on the surface of the side near the spring plate 5. For example, as shown in fig. 21, a surface of the second side plate 312 adjacent to the spring 5 is curved, and accordingly, the shape of the second conductive pattern 62 is curved.

Thus, the area of the second conductive pattern 62 can be increased, and when the second elastic portion 52 of the elastic piece 5 abuts against any position of the second side plate 312, which is close to the surface of one side of the elastic piece 5, the second elastic portion 52 of the elastic piece 5 can be contacted with the second conductive pattern 62, which is beneficial to improving the reliability of the conductive path between the second elastic portion 52 of the elastic piece 5 and the second conductive pattern 62.

The material of the conductive layer 6 includes various materials, and is selected and arranged according to actual needs.

Illustratively, the material of the conductive layer 6 comprises a conductive silver paste. Accordingly, the conductive layer 6 includes a conductive silver paste layer. Of course, the material of the conductive layer 6 may be a conductive material such as conductive glue.

Where the material of the conductive layer 6 includes conductive silver paste, the conductive layer 6 may be formed using a pad printing process. It will be appreciated that conductive silver paste is a material used in the manufacture of circuit boards, and is typically a mixture of silver, conductive resin, organic solvent, and adjuvants, etc. The conductive silver paste has good conductivity, adhesion and corrosion resistance. Thus being beneficial to enhancing the static electricity releasing capability and better realizing the grounding effect.

It will be appreciated that in case the front case 3 is divided into two sub-cases, the first conductive pattern 61 of the conductive layer 6 may also be divided into two parts. The two parts of the first conductive pattern 61 are arranged in one-to-one correspondence with the two sub-shells of the front shell 3, each part of the first conductive pattern 61 also being U-shaped in an orthographic projection onto the plane of the carrying surface 2A, so that the first conductive pattern 61 can be arranged around the flexible display screen 1. This can enable static electricity on the flexible display screen 1 to be transmitted from any direction to the first conductive pattern 61 nearby, effectively increasing the effect of static electricity protection.

In some examples, as shown in fig. 22, the second trench 2C includes a plurality of second sub-trenches 2C-1 arranged at intervals along the second direction X. The limiting block 4 is also positioned between two adjacent second sub-grooves 2C-1. The first limiting groove 31A adapted to the limiting block 4 is also located on a portion of the supporting portion 31 located between two adjacent second sub-grooves 2C-1. Correspondingly, the elastic piece 5 is also arranged on one side of the limiting block 4 far away from the supporting part 31.

Here, the stopper 4 and the first stopper groove 31A are arranged in the same manner as in the first sub-groove 2B-1 at the second sub-groove 2C-1. Further, the accommodating groove 2D is further located between two adjacent second sub-grooves 2C-1, and the arrangement mode of the elastic sheet 5 at the two adjacent second sub-grooves 2C-1 is the same as the arrangement mode at the first sub-groove 2B-1. The supporting portion 31 is disposed in the second sub-groove 2C-1 and the corresponding accommodation groove 2D in the same manner as the first sub-groove 2B-1 and the corresponding accommodation groove 2D. Reference may be made specifically to the above description, and no further description is given here.

In addition, in this example, the arrangement of the second conductive patterns 62 in the conductive layer 6 is also the same as the arrangement of the second conductive patterns 62 in the conductive layer 6, and will not be described here again.

In some embodiments, as shown in fig. 5, 8 and 13, the folding display terminal 100 further includes: an adhesive layer 7. The adhesive layer 7 fills the first trench 2B. The portion of the support 31 extending into the first groove 2B is connected to the first groove 2B by the adhesive layer 7.

For example, in the embodiment of the present application, glue may be injected into the first groove 2B by using a dispensing process, and then the front case 3 is inserted into the first groove 2B, so that the front case 3 and the middle frame 2 are bonded together.

As shown in fig. 14, in the case where the first groove 2B includes a plurality of first sub-grooves 2B-1, the adhesive layer 7 includes a plurality of adhesive patterns, one adhesive pattern is located in each of the first sub-grooves 2B-1, so that the first side plate 311 extending into the first sub-groove 2B-1 can be connected to the first sub-groove 2B-1 through the adhesive patterns. Alternatively, the bonding pattern may slightly overflow the first sub-groove 2B-1 into the adjacent receiving groove 2D.

In the case where the middle frame 2 further includes the second groove 2C, the adhesive layer 7 is also filled in the second groove 2C. The manner of setting the adhesive layer 7 in the second trench 2C is the same as the manner of setting the adhesive layer 7 in the first trench 2B, and will not be described here again.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art who is skilled in the art will recognize that changes and substitutions are within the technical scope of the present disclosure. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A folding display terminal, characterized in that the folding display terminal comprises:

the flexible display screen can be folded along a set axis, and the set axis is along a first direction;

the middle frame is provided with a bearing surface; the flexible display screen is positioned on the bearing surface; the middle frame comprises two first grooves which are arranged along a second direction and are positioned at two opposite ends of the bearing surface; the first direction is perpendicular to the second direction;

the front shell comprises a supporting part and a protecting part which are connected; the supporting part extends into the first groove and is connected with the first groove; the protection part is positioned above the flexible display screen and covers part of the edge of the flexible display screen;

the limiting block is arranged on the middle frame; the supporting part is provided with a first limiting groove matched with the limiting block, and the limiting block extends into the first limiting groove; the limiting block and the first limiting groove are used for limiting the front shell to move along the direction perpendicular to the plane where the bearing surface is located and pointing to the protection part from the bearing surface;

the elastic sheet is positioned at one side of the supporting part far away from the limiting block; the elastic piece comprises a first elastic part and a second elastic part which are connected, the first elastic part is positioned between the bearing surface and the flexible display screen, and the second elastic part extends from the first elastic part to the lower side of the flexible display screen and is propped against the part of the supporting part, which is provided with the first limiting groove.

2. The folding display terminal of claim 1, wherein the second elastic portion includes a connection portion and a U-shaped portion including a first plate, a second plate, and a third plate connected in sequence;

one end of the connecting part is connected with the first elastic part, and the other end extends to the lower part of the flexible display screen and is connected with the first plate of the U-shaped part;

the first plate is opposite to the third plate, at least part of the third plate is close to the flexible display screen compared with the first plate, and one end, far away from the second plate, of the third plate is a free end and extends towards the lower side of the flexible display screen.

3. The folding display terminal of claim 1, wherein the flexible display screen has a top corner; the shrapnel comprises: the first elastic piece is positioned at the vertex angle and/or the second elastic piece is positioned between two adjacent vertex angles;

in the orthographic projection to the plane where the bearing surface is located, an acute angle is formed between the extending direction of the first elastic part of the first elastic piece and the first direction, and the second elastic part of the first elastic piece is positioned at one side, close to the vertex angle, of the second elastic part of the first elastic piece; the extending direction of the second elastic part of the first elastic piece is vertical to the first direction;

In the orthographic projection to the plane where the bearing surface is located, the extending direction of the first elastic part of the second elastic piece is parallel to the first direction, and the extending direction of the second elastic part of the second elastic piece is perpendicular to the first direction.

4. A folding display terminal according to claim 3, wherein the first elastic portion of the first elastic piece is warped in a direction opposite to an extending direction of the second elastic portion of the first elastic piece in a natural state.

5. The folding display terminal of claim 1, wherein the first groove includes a plurality of first sub-grooves spaced apart along the first direction;

the middle frame is also provided with an accommodating groove, the accommodating groove is positioned between two adjacent first sub-grooves, and the elastic sheet is positioned in the accommodating groove;

in the orthographic projection to the plane where the bearing surface is located, the limiting block and the first limiting groove are located in the containing groove.

6. The foldable display terminal of claim 5, wherein the support portion includes a first side plate and a second side plate;

the first side plate extends into the first sub-groove and is connected with the first sub-groove;

The second side plate stretches into the accommodating groove, and the second side plate is provided with the first limit groove;

wherein, between the first curb plate and the second curb plate, at least part separation sets up.

7. The foldable display terminal of claim 6, wherein the second side plate has a larger size than the first side plate in a direction perpendicular to the plane of the carrying surface.

8. The folding display terminal according to claim 6, wherein a gap is provided between the second side plate and the bottom wall of the accommodation groove;

the second elastic part extends into the gap and abuts against one end of the second side plate, which is close to the bottom wall of the accommodating groove.

9. The folding display terminal of claim 5, wherein the receiving groove comprises: the first sub-accommodating groove and the second sub-accommodating groove are communicated;

the first sub-accommodating groove is used for accommodating the first elastic part, and the second sub-accommodating groove is used for accommodating the second elastic part; the depth of the second sub-receiving groove is greater than the depth of the first sub-receiving groove.

10. The foldable display terminal of claim 9, wherein the second sub-receiving groove has a first sidewall opposite the stopper;

The first side wall is in a step shape, and a part of the second elastic part is arranged on the step surface.

11. The foldable display terminal of any one of claims 1 to 10, wherein the guard has an inner surface opposite a partial edge of the flexible display screen;

the folding display terminal further includes: a conductive layer including a first conductive pattern and a second conductive pattern connected to each other;

the first conductive pattern is positioned on the inner surface and is contacted with part of the edge of the flexible display screen;

the second conductive pattern is positioned on one side surface of the supporting part, which is close to the elastic sheet, and is contacted with the elastic sheet; the elastic sheet is conductive.

12. The folding display terminal according to claim 11, wherein in a case where the supporting portion includes a first side plate and a second side plate, the second conductive pattern covers a side surface of the second side plate near the elastic piece.

13. The folded display terminal of claim 11, wherein the conductive layer comprises a conductive silver paste layer.

14. The foldable display terminal of claim 1, wherein the middle frame comprises:

A middle frame body having a mounting opening; the mounting opening is communicated with the first groove;

the connecting piece is filled in the mounting opening; and one part of the connecting piece is matched with the middle frame main body to form the first groove, and the limiting block and the connecting piece are integrally formed.

15. The foldable display terminal of claim 14, wherein the mounting opening has a second sidewall having a second limiting groove;

and one part of the connecting piece stretches into the second limiting groove, and the second limiting groove is used for limiting the displacement of the connecting piece along the direction vertical to the bearing surface.

16. The foldable display terminal of claim 1, wherein the middle frame further comprises two second grooves aligned along the first direction and located at opposite ends of the carrying surface; the two first grooves and the two second grooves are arranged around the bearing surface and the flexible display screen;

the supporting part also stretches into the second groove and is connected with the second groove.

17. The folded display terminal of claim 16, wherein the second grooves include a plurality of second sub-grooves spaced apart along the second direction;

The limiting block is also positioned between two adjacent second sub-grooves;

the first limiting groove matched with the limiting block is also positioned on the part of the supporting part between two adjacent second sub-grooves.

18. The foldable display terminal of claim 1, wherein the foldable display terminal further comprises: an adhesive layer filled in the first groove;

the part of the supporting part extending into the first groove is connected with the first groove through the bonding layer.