Patent Description:
This application relates to the field of electronic device technologies, and in particular, to a mobile terminal.

In recent years, there are mobile phones and tablet computers in the market to meet a user' requirement for different display areas. With appearance of flexible screens, manufacturers further design foldable mobile terminals, to meet requirements for both a large screen and portability.

During research and development, to simplify a circuit, generally, elements with a relatively large volume such as a CPU and a camera module are disposed on one side of a rotating shaft, and an element with a relatively small volume is disposed on the other side of the rotating shaft. Due to this design, one side of the rotating shaft heats seriously, causing a color difference on the flexible screen. To resolve this, a temperature equalization plate is used to balance temperatures of parts that are of the flexible screen and that are located on two sides of the rotating shaft.

However, in the conventional technology, the temperature equalization plate is in contact with the flexible screen. After the mobile terminal is used for a long time, the temperature equalization plate is slack and arched to squeeze the flexible screen, which affects a display effect and causes poor user experience. <CIT> discloses a film-shaped heat dissipation member comprising a heat dissipation layer. Wherein composition and a structure of the heat dissipation layer are designed, so that a tangent-plane length of the heat dissipation layer changes in a surface bending process, can be bent repeatedly, and can implement uniform temperatures on two sides of the bendable display apparatus and the terminal device. <CIT> discloses an electronic device comprising a hinge structure, a first housing structure rotatably connected through the hinge structure, a second housing structure rotatably connected through the hinge structure and facing the first housing structure on the basis of the hinge structure in a folded status, a first printed circuit board disposed in the first housing structure and having at least one first element mounted thereon, a first heat transfer structure disposed on at least a portion of the first housing structure and at least a portion of the hinge structure, and a second heat transfer member disposed on at least a portion of the second housing structure and at least a portion of the hinge structure. <CIT> discloses a foldable screen device including two frames that are jointly articulated with a rotating shaft assembly. The two frames rotate around rotating shafts of the rotating shaft assembly to be closed or opened. The rotating shaft assembly includes a connection structure and hinges. The connection structure has a channel that passes through two opposite sides of the rotating shaft assembly, and an electrical connection line of the foldable screen device penetrates into the channel. Two ends of the electrical connection line are respectively connected to the two frames, and the hinges and the channel are located at different positions of the rotating shaft assembly in an axial direction. <CIT> discloses an electronic device including a first portion chassis, a second portion chassis, and a hinge that rotatably couples the first portion chassis to the second portion chassis. Wherein the electronic device also includes a flexible heat spreader that extends from the second portion chassis, through the hinge, and to the first portion chassis, where the flexible heat spreader includes frills that can accommodate deformations in the flexible heat spreader when the first portion chassis is rotated relative to the second portion chassis. <CIT> discloses a backlight module including a backplane and a light source. Wherein the light source is arranged on the backplane, and the outer side surface of the backplane near the light source is provided with a heat pipe. The heat pipe is arranged on the outer side surface of the backplane of the backlight module near the light source. <CIT> discloses a folding assembly comprising a first shell, a second shell and a rotating shaft assembly that is connected in between. The first shell comprises a first main shell part and a first supporting part that is connected to the side, close to the rotating shaft assembly of the first main shell part. The second shell comprises a second main shell part and a second supporting part that is connected to the side, close to the rotating shaft assembly of the second main shell part. Wherein the first main shell part is used for supporting a first straight part of the flexible display screen, and the second main shell part is used for supporting a second straight part of the flexible display screen. When the first shell is in a folded state relative to the second shell, the first supporting part and the second supporting part are used for jointly supporting a bent part of the flexible display screen. The bent part of the flexible display screen is connected between the first straight part and the second straight part.

The present invention is defined by the independent claim. In the following, parts of the description and drawings referring to former embodiments which do not necessarily comprise all features to implement embodiments of the claimed invention are not represented as embodiments of the invention but as examples useful for understanding the embodiments of the invention. Embodiments of this application provide a mobile terminal, to prevent a temperature equalization plate from arching to squeeze a flexible screen.

The mobile terminal provided in this application includes a rotating member, a flexible screen, a bending support part, and a temperature equalization plate. The flexible screen includes two unfolded regions and a bent region located between the two unfolded regions, and the bent region is disposed opposite to the rotating member. The bending support part is located between the flexible screen and the rotating member, to support the bent region of the flexible screen. The temperature equalization plate includes temperature equalization parts opposite to the two unfolded regions in a one-to-one correspondence and a flexible connection part that connects the two temperature equalization parts. The flexible connection part is located on a side that is of the bending support part and that is away from the flexible screen, to balance temperatures in the two unfolded regions. The flexible connection part of the temperature equalization plate is distributed on the side that is of the bending support part and that is away from the flexible screen. Therefore, even if the temperature equalization plate is slack after being used for a long time, the temperature equalization plate cannot squeeze the flexible screen after being slack and arched, because the flexible connection part of the temperature equalization plate is blocked by the bending support part and cannot be in contact with the bent region of the flexible screen. Therefore, user experience is improved.

There may be a plurality of locations for disposing each temperature equalization part of the temperature equalization plate.

According to the invention, a housing is disposed on a side that is of each unfolded region of the flexible screen and that is away from a light-emitting surface. Each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group. In at least one module group, the temperature equalization part is located between the unfolded region and the housing, so that the temperature equalization part can exchange heat with the corresponding unfolded region more directly and effectively.

According to the invention, in a module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, an accommodation slot is formed between the housing and the bending support part. A thickness of the flexible connection part is greater than a width of the accommodation slot, to prevent the flexible connection part from passing through the accommodation slot to touch the flexible screen, thereby preventing the flexible screen from being squeezed by the flexible connection part of the temperature equalization plate.

In a specific implementable solution, a screen reinforcing plate configured to support the unfolded region is further disposed on a side surface that is of each unfolded region and that is away from a light-emitting surface. In a module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, an accommodation slot is formed between the housing and the bending support part. An orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen covers an orthographic projection of the accommodation slot on the light-emitting surface of the flexible screen. The screen reinforcing plate shields a corresponding region that is between the housing and the unfolded region and that is opposite to the accommodation slot. Even if the flexible connection part of the temperature equalization plate passes through the accommodation slot, the flexible connection part can touch the screen reinforcing plate at most and cannot be in contact with the flexible screen.

In a specific implementable solution, in the module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, there is overlapping between the orthographic projection of the screen reinforcing plate on the light-emitting surface of the flexible screen and an orthographic projection of the bending support part on the light-emitting surface of the flexible screen. The flexible connection part of the temperature equalization plate at least needs to pass through a slot channel between the screen reinforcing plate and the bending support part, to be in contact with the flexible screen, which further increases difficulty.

For another example, in a specific implementable solution, a housing is disposed on a side that is of each unfolded region of the flexible screen and that is away from a light-emitting surface. Each group of unfolded region, housing, and temperature equalization part that correspond to each other form a module group. In at least one module group, the temperature equalization part is located on a side that is of the housing and that is away from the flexible screen.

In a specific implementable solution, a rear cover is further disposed on a side surface that is of the housing and that is away from the flexible screen. In the module group of each temperature equalization part located between the unfolded region and the housing that correspond to each other, the temperature equalization part is fastened to the corresponding rear cover.

To prevent the flexible connection part from bearing relatively large tensile force in a process of opening or closing the mobile terminal, in a specific implementable solution, a redundant structure is formed in the flexible connection part. The redundant structure may be formed in a plurality of manners. For example, in a possible implementation, the flexible connection part is ripple-shaped. In another possible implementation, the flexible connection part is bend-shaped.

To facilitate understanding of the mobile terminal provided in the embodiments of this application, a scenario to which the mobile terminal is applied is first described. The mobile terminal may be a foldable mobile phone, a foldable tablet computer, a foldable PDA, or the like. Disadvantages of an existing mobile terminal are described below by using a specific instance.

<FIG> is a schematic diagram of a structure of a mobile terminal in an expanded state in the conventional technology. Referring to <FIG>, in the conventional technology, a foldable mobile phone is used as an example. The mobile terminal includes a flexible screen <NUM>, a middle frame <NUM>, a middle frame <NUM>, a rotating shaft, a shaft housing <NUM>, and a shaft support plate <NUM>. The flexible screen <NUM> includes an unfolded region <NUM>, an unfolded region <NUM>, and a bent region <NUM> (a region between A and B) that connects the unfolded region <NUM> and the unfolded region <NUM>. The middle frame <NUM> is located on a side that is of the unfolded region <NUM> and that is away from a light-emitting surface, and the middle frame <NUM> is located on a side that is of the unfolded region <NUM> and that is away from the light-emitting surface. The shaft support plate <NUM> is located on a side that is of the bent region <NUM> and that is away from the light-emitting surface, and is configured to provide active support the bent region <NUM>. The shaft housing <NUM> is located on a side that is of the shaft support plate <NUM> and that is away from the flexible screen <NUM>. The rotating shaft (not shown in the figure) is located between the shaft support plate <NUM> and the shaft housing <NUM>, and the middle frame <NUM> cooperates with the middle frame <NUM> through rotation of the rotating shaft, so that the mobile terminal switches between a folded state and an expanded state. When the mobile terminal is in a folded state, a light-emitting surface of the unfolded region <NUM> is opposite to a light-emitting surface of the unfolded region <NUM>. To simplify circuit design, an element with a relatively large volume is disposed in the middle frame <NUM>, and an element with a relatively small volume is disposed in the middle frame <NUM>. As a result, heat sources generating a relatively large amount of heat in the middle frame <NUM> are concentrated in the middle frame <NUM>. For example, a CPU (Central Processing Unit, central processing unit) <NUM> is disposed in the middle frame <NUM>, which generates a relatively large amount of heat. Consequently, the unfolded region <NUM> obviously suffers from more heat than the unfolded region <NUM>. To resolve this problem, a temperature equalization plate <NUM> is added to balance temperatures in the unfolded region <NUM> and the unfolded region <NUM>. The temperature equalization plate <NUM> sequentially passes between the unfolded region <NUM> and the middle frame <NUM>, between the bent region <NUM> and the shaft support plate <NUM>, and between the unfolded region <NUM> and the middle frame <NUM>. <FIG> is a schematic diagram of the mobile terminal shown in <FIG> after the mobile terminal is used for a long time. Referring to <FIG>, as the mobile terminal is used for a longer time, a part that is of the temperature equalization plate <NUM> and that is opposite to the bent region <NUM> is slack and raised as the middle frame <NUM> and the middle frame <NUM> are repeatedly folded and expanded. As a result, the bent region <NUM> of the flexible screen <NUM> is partially arched, which affects user experience.

To resolve this problem, the embodiments of this application provide a mobile terminal.

<FIG> is a schematic diagram of a mobile terminal in an expanded state according to an embodiment of this application. <FIG> is a schematic diagram of the mobile terminal shown in <FIG> in a folded state. <FIG> is a T-direction view of a structure of the mobile terminal shown in <FIG> after a flexible screen and a screen reinforcing plate are removed. With reference to <FIG>, and <FIG>, using a mobile phone as an example, the mobile terminal includes a flexible screen <NUM>, a folding support assembly, and a bending support part <NUM>.

Still referring to <FIG>, the flexible screen <NUM> includes an unfolded region <NUM>, an unfolded region <NUM>, and a bent region <NUM> (a region between E and F) that connects the unfolded region <NUM> and the unfolded region <NUM>. The bent region <NUM> is flexibly deformed when the mobile terminal switches between a folded state and expanded state. To provide better support for the unfolded region <NUM> and the unfolded region <NUM>, the mobile terminal further includes a screen reinforcing plate <NUM> and a screen reinforcing plate <NUM>. The screen reinforcing plate <NUM> is located on a back surface that is of the unfolded region <NUM> and that is away from a light-emitting surface, and is in contact with the back surface to provide support. The screen reinforcing plate <NUM> is located on a back surface that is of the unfolded region <NUM> and that is away from the light-emitting surface, and is in contact with the back surface to provide support.

With reference to <FIG>, and <FIG>, the folding support assembly includes a housing <NUM>, a housing <NUM>, and a rotating member (which is not shown in the figure for simplification) that connects the housing <NUM> and the housing <NUM>. The housing <NUM> and the housing <NUM> are sometimes referred to as middle frames. The rotating member may be a hinge, or may be another part that has a flexible bending function. The housing <NUM> and the housing <NUM> cooperate in rotation around an axis L (refer to <FIG>) by using a rotating member such as a hinge. The housing <NUM> is located on a side that is of the unfolded region <NUM> and that is away from the light-emitting surface, and is disposed opposite to the unfolded region <NUM>. The housing <NUM> has a bearing surface configured to provide support (which is indirect support in <FIG>) for the unfolded region <NUM>. Similarly, the housing <NUM> is located on a side that is of the unfolded region <NUM> and that is away from the light-emitting surface, and is disposed opposite to the unfolded region <NUM>. The housing <NUM> has a bearing surface configured to provide support (which is indirect support in <FIG>) for the unfolded region <NUM>. The foregoing parts of the folding support assembly form a skeleton of the mobile terminal, and provide support for the parts of the flexible screen <NUM>.

The mobile terminal further includes a circuit board <NUM> disposed in the housing <NUM> and a heat source <NUM> mounted on the circuit board <NUM>, and the heat source <NUM> may be a CPU. A battery <NUM> is accommodated in the housing <NUM>. The heat source <NUM> generates a relatively large amount of heat, and therefore the unfolded region <NUM> and the unfolded region <NUM> of the flexible screen <NUM> are heated unevenly. It should be understood that allocation of the elements in the housing <NUM> and the housing <NUM> is merely an example, and there may be another element layout that causes uneven heating of the flexible screen.

In addition, referring to <FIG>, the bending support part <NUM> is located on a side that is of the bent region <NUM> and that is away from the light-emitting surface. Referring to <FIG>, the bending support part <NUM> may be a shaft support plate. For example, the bending support part <NUM> may specifically include a plurality of support boards <NUM> arranged at intervals from the unfolded region <NUM> to the unfolded region <NUM>. Each support board <NUM> extends in a direction of the axis L, and every two adjacent support boards <NUM> may be flexibly connected by using a flexible material. Therefore, each support board <NUM> may be well attached to the folded region <NUM> to provide active support for the folded region <NUM>. The "active support" means the following: Referring to <FIG>, when the mobile terminal is in an expanded state, the bending support part <NUM> provides support for the bent region <NUM> as the bent region <NUM> expands. Referring to <FIG>, when the mobile terminal is in a folded state, the bent region <NUM> is flexibly bent, and the bending support part <NUM> still provides support for the bent region <NUM> as the bent region <NUM> is bent and deformed. However, it should be understood that the bending support part <NUM> is not limited to the form in <FIG>, and may also be another member that can provide active support for the bent region <NUM>.

An accommodation slot G1 is formed between the housing <NUM> and the bending support part <NUM>, and an accommodation slot G2 is formed between the housing <NUM> and the bending support part <NUM>.

With reference to <FIG>, to transfer, to the unfolded region <NUM>, heat emitted by the heat source <NUM>, to balance heat received by the unfolded region <NUM> and heat received the unfolded region <NUM> and balance temperatures in the unfolded region <NUM> and the unfolded region <NUM>, so as to reduce differences between colors in parts of the flexible screen <NUM>, the mobile terminal provided in this embodiment of this application further includes a temperature equalization plate <NUM>. The temperature equalization plate <NUM> includes a temperature equalization part <NUM>, a temperature equalization part <NUM>, and a flexible connection part <NUM> connecting the temperature equalization part <NUM> and the temperature equalization part <NUM>. The temperature equalization part <NUM> is located between the screen reinforcing plate <NUM> and the housing <NUM>, and the temperature equalization part <NUM> is located between the screen reinforcing plate <NUM> and the housing <NUM>. A location at which the temperature equalization part <NUM> is connected to the flexible connection part <NUM> passes through the accommodation slot G1, and a location at which the temperature equalization part <NUM> is connected to the flexible connection part <NUM> passes through the accommodation slot G2. The flexible connection part <NUM> is located on a side that is of the bending support part <NUM> and that is away from the bent region <NUM>, instead of passing between the bending support part <NUM> and the bent region <NUM>. In this way, even if the flexible connection part <NUM> is slack and deformed after being used for a long time, because of shielding of the bending support part <NUM>, the flexible connection part <NUM> does not easily touch the flexible screen <NUM>, which mitigates and even eliminates a technical problem that the bent region <NUM> of the flexible screen <NUM> is partially arched because the temperature equalization plate <NUM> is slack, thereby improving user experience.

The unfolded region <NUM>, the housing <NUM>, and the temperature equalization part <NUM> form a module group, and the unfolded region <NUM>, the housing <NUM>, and the temperature equalization part <NUM> form a module group.

In <FIG>, to enable the mobile terminal to switch from an expanded state to a folded state, a material of the flexible connection part <NUM> needs to have a flexible property. However, when the mobile terminal switches to a folded state, the flexible connection part <NUM> is gradually tightened. To prevent the flexible connection part <NUM> from bearing relatively large tensile force to be damaged in a tightening process, the flexible connection part <NUM> is lengthened in the mobile terminal shown in <FIG>, so that a redundant structure is formed at one end of the flexible connection part <NUM>. The "redundant structure" means the following: In a process in which the flexible connection part <NUM> extends from the temperature equalization part <NUM> to the temperature equalization part <NUM>, an actual extended length of the flexible connection part <NUM> is greater than a minimum possible extended length of the flexible connection part <NUM> (that is, a length extended when the flexible connection part <NUM> extends clinging to a surface that is of the bending support part <NUM> and that is away from the flexible screen <NUM>). As shown in <FIG>, the flexible connection part <NUM> just expands when the mobile terminal in <FIG> switches to a folded state, and the temperature equalization part <NUM> and the temperature equalization part <NUM> do not pull the flexible connection part <NUM> with relatively large tensile force, which prevents the flexible connection part <NUM> from being damaged. To form the redundant structure in the flexible connection part <NUM>, the flexible connection part <NUM> may be further disposed in a ripple shape, which is alternatively referred to as a wrinkle shape. These ripples are arranged in a direction from the temperature equalization part <NUM> to the temperature equalization part <NUM>, which can also cushion tensile force caused to the flexible connection part <NUM> when the mobile terminal is folded. Alternatively, the flexible connection part <NUM> may form a ripple based on the foregoing bend structure.

In addition, to protect various elements in the mobile terminal, still referring to <FIG>, the mobile terminal further includes a rear cover <NUM>, a rear cover <NUM>, and a shaft housing <NUM>. The rear cover <NUM> is disposed on a side that is of the housing <NUM> and that is away from the flexible screen <NUM>, and is fastened to the housing <NUM>. The rear cover <NUM> is disposed on a side that is of the housing <NUM> and that is away from the flexible screen <NUM>, and is fastened to the housing <NUM>. The shaft housing <NUM> is disposed on a side that is of the bending support part <NUM> and that is away from the flexible screen <NUM>. The rotating member such as a hinge configured to connect the housing <NUM> and the housing <NUM> is located between the bending support part <NUM> and the shaft housing <NUM>. The flexible connection part <NUM> of the temperature equalization plate <NUM> may be located between the rotating member and the bending support part <NUM>, or may be located between the rotating member and the shaft housing <NUM>.

<FIG> is a possible cross-sectional diagram of the temperature equalization plate <NUM> shown in <FIG>. The temperature equalization plate includes a capillary structure <NUM>, an upper cover plate <NUM>, and a lower cover plate <NUM> that are disposed opposite to each other. The upper cover plate <NUM> and the lower cover plate <NUM> may form a closed cavity through welding or the like. The capillary structure <NUM> is disposed in the cavity, and the capillary structure <NUM> is filled with a specific amount of working fluid, such as a deionized water or other coolant, to form a phase change cycle system. A material of the upper cover plate <NUM> and a material of the lower cover plate <NUM> each may be a metal material such as copper or copper alloy, or may be a non-metal material with relatively good flexibility, such as polyimide PI, rubber, or another high molecular material. The capillary structure <NUM> may be made of copper powder, a copper braided mesh, or tow.

In addition, the temperature equalization plate <NUM> may be directly made of a material with relatively good heat dissipation performance, such as graphite or graphene, and a ripple or bend structure is formed in the flexible connection part <NUM>; or both a ripple and a bend are used as redundant structures.

<FIG> is a schematic diagram of a structure of another temperature equalization plate that may be used in a mobile terminal according to an embodiment of this application. Referring to <FIG>, both the temperature equalization part <NUM> and the temperature equalization part <NUM> are flat, and the flexible connection part <NUM> connecting the temperature equalization parts <NUM> and <NUM> is ripple-shaped. The temperature equalization part <NUM>, the temperature equalization part <NUM>, and the flexible connection part <NUM> each may be made of a material with relatively good heat dissipation performance, such as graphite or graphene. To protect the temperature equalization plate, protection layers <NUM> and <NUM> (not shown in <FIG>) are respectively disposed on two sides of the temperature equalization plate. Two sides of the temperature equalization part <NUM> are respectively bonded to the protection layers <NUM> and <NUM> by using an adhesive layer, and the temperature equalization part <NUM> is separately bonded to the protection layers <NUM> and <NUM> by using an adhesive layer, but the flexible connection part <NUM> is not bonded to the protection layers <NUM> and <NUM>. The adhesive layer used herein refers to a material layer playing a bonding function, which may also have specific elasticity, may be compressed or stretched, and may be one or more layers.

<FIG> is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application. Referring to <FIG>, a difference between the mobile terminal shown in <FIG> and the mobile terminal shown in <FIG> lies in the following: A protruded part <NUM> (a part belonging to the bending support part <NUM>) is formed at an end that is of the bending support part <NUM> and that is close to the housing <NUM>. An accommodation slot G1 is formed between the protruded part <NUM> and the housing <NUM>. An orthographic projection of the screen reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM> covers an orthographic projection of the accommodation slot G1 on the light-emitting surface of the flexible screen <NUM>. In addition, as observed in a T direction, the protruded part <NUM> and an edge part of the screen reinforcing plate <NUM> are alternatively disposed. In this case, a partial region of an orthographic projection of the protruded part <NUM> on the light-emitting surface of the flexible screen <NUM> overlaps a partial region of an orthographic projection of the screen reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM>. In other words, there is overlapping between the orthographic projection of the protruded part <NUM> on the light-emitting surface of the flexible screen <NUM> and the orthographic projection of the screen reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM>. In addition, the temperature equalization plate <NUM> still passes through the accommodation slot G1. In this case, to touch the flexible screen <NUM>, the temperature equalization plate <NUM> needs to pass through a bent channel formed between the screen reinforcing plate <NUM> and a side surface that is of the bending support part <NUM> and that is close to the screen reinforcing plate <NUM>, which further increases difficulty for the temperature equalization plate <NUM> to touch the flexible screen <NUM>.

It should be understood that in addition to the manner shown in <FIG>, there may be some variations that can also achieve a similar effect. For example, an accommodation groove is formed on the side surface that is of the bending support part <NUM> and that is close to the screen reinforcing plate <NUM>, and an edge of the screen reinforcing plate <NUM> is fitted (a specific active gap is kept) into the accommodation groove. This can also prevent, to some extent, the temperature equalization plate <NUM> from touching the flexible screen <NUM>. In conclusion, it is only required to ensure that there is overlapping between the orthographic projection of the screen reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM> and an orthographic projection of the bending support part <NUM> on the light-emitting surface of the flexible screen <NUM>.

However, to say the least, there is no overlapping between the orthographic projection of the screen reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM> and the orthographic projection of the bending support part <NUM> on the light-emitting surface of the flexible screen <NUM>, but an orthographic projection, of an edge that is of the bending support part <NUM> and that is close to the screen reinforcing plate <NUM>, on the light-emitting surface of the flexible screen <NUM> overlaps the orthographic projection of the reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM>. In this case, the orthographic projection of the screen reinforcing plate <NUM> on the light-emitting surface of the flexible screen <NUM> can cover an orthographic projection of the accommodation slot G20 on the light-emitting surface of the flexible screen <NUM>. Compared with the mobile terminal shown in <FIG>, this can still prevent, to some extent, the temperature equalization plate <NUM> from touching the flexible screen <NUM>.

Similarly, still referring to <FIG>, a protruded part <NUM> (a part belonging to the bending support part <NUM>) is formed at an end that is of the bending support part <NUM> and that is close to the housing <NUM>, and an accommodation slot G2 is formed between the protruded part <NUM> and the housing <NUM>. For a relationship between the bending support part <NUM>, the screen reinforcing plate <NUM>, and the accommodation slot G2, correspondingly refer to the relationship between the bending support part <NUM>, the screen reinforcing plate <NUM>, and the accommodation slot G2.

In addition, in <FIG>, the mobile terminal further includes a flexible circuit board <NUM>, and the flexible circuit board <NUM> sequentially passes between the housing <NUM> and the rear cover <NUM>, between the shaft housing and the rotating member, and between the housing <NUM> and the rear cover <NUM>. The flexible circuit board <NUM> may be configured to electrically connect lines on two sides of the rotating member, for example, electrically connect an electronic element on the housing <NUM> and an electronic element on the housing <NUM>.

<FIG> is a schematic diagram of another mobile terminal in an expanded state according to the invention. Referring to <FIG>, a difference between the mobile terminal shown in <FIG> and the mobile terminal shown in <FIG> lies in the following: A thickness d of the flexible connection part <NUM> is greater than a width of the accommodation slot G1, to prevent the flexible connection part <NUM> from passing through the accommodation slot G1 to touch a partial region that is of the flexible screen <NUM> and that is exposed from a slot between the bending support part <NUM> and the screen reinforcing plate <NUM>, and further prevent the flexible connection part <NUM> from moving to a location between the screen reinforcing plate <NUM> and the housing <NUM>. Therefore, it is always ensured that the temperature equalization part <NUM> is straight and is not easily arched, and the flexible connection part is also prevented from being tensioned to be damaged. Correspondingly, that the thickness d of the flexible connection part <NUM> is greater than a width of the accommodation slot G2 can also achieve a similar effect.

<FIG> is a schematic diagram of another mobile terminal in an expanded state according to an embodiment of this application. <FIG> is a schematic diagram of the mobile terminal shown in <FIG> in a folded state. Referring to <FIG> and <FIG>, a difference between the mobile terminal shown in <FIG> and <FIG> and the mobile terminal shown in <FIG> lies in the following: The temperature equalization part <NUM> is located between the housing <NUM> and the rear cover <NUM>, and the temperature equalization part <NUM> may be bonded to the rear cover <NUM>, which may also balance temperatures in the unfolded region <NUM> and the unfolded region <NUM>. Setting may be specifically selected based on a requirement. Alternatively, the temperature equalization part <NUM> may be located between the housing <NUM> and the rear cover <NUM>.

It should be understood that a variant may be made based on <FIG>, <FIG>, and <FIG>. The temperature equalization part <NUM> is disposed between the housing <NUM> and the rear cover <NUM>, or the temperature equalization part <NUM> is disposed between the housing <NUM> and the rear cover <NUM>.

Claim 1:
A mobile terminal, comprising:
a rotating member;
a flexible screen (<NUM>, <NUM>), wherein the flexible screen (<NUM>, <NUM>) comprises two unfolded regions (<NUM>, <NUM>) and a bent region (<NUM>) located between the two unfolded regions (<NUM>, <NUM>), and the bent region (<NUM>) is disposed opposite to the rotating member;
a bending support part (<NUM>), located between the flexible screen (<NUM>, <NUM>) and the rotating member, to support the bent region (<NUM>) of the flexible screen (<NUM>, <NUM>); and
a temperature equalization plate (<NUM>, <NUM>) configured to balance temperatures in the two unfolded regions (<NUM>, <NUM>), wherein the temperature equalization plate (<NUM>, <NUM>) comprises temperature equalization parts (<NUM>, <NUM>) opposite to the two unfolded regions (<NUM>, <NUM>) in a one-to-one correspondence and a flexible connection part (<NUM>) that connects the two temperature equalization parts (<NUM>, <NUM>), and the flexible connection part (<NUM>) is located on a side that is of the bending support part (<NUM>) and that is away from the flexible screen (<NUM>, <NUM>);
wherein a housing (<NUM>) is disposed on a side that is of each unfolded region (<NUM>, <NUM>) of the flexible screen (<NUM>, <NUM>) and that is away from a light-emitting surface;
each group of unfolded region (<NUM>, <NUM>), housing (<NUM>), and temperature equalization part (<NUM>, <NUM>) that correspond to each other form a module group; and
in at least one module group, the temperature equalization part (<NUM>, <NUM>) is located between the unfolded region (<NUM>, <NUM>) and the housing (<NUM>);
and the mobile terminal is characterized in that:
in a module group of each temperature equalization part (<NUM>, <NUM>) located between the unfolded region (<NUM>, <NUM>) and the housing (<NUM>, <NUM>, <NUM>, <NUM>) that correspond to each other, an accommodation slot (G1, G2) is formed between the housing (<NUM>, <NUM>, <NUM>, <NUM>) and the bending support part (<NUM>), and a thickness of the flexible connection part (<NUM>) is greater than a width of the accommodation slot (G1, G2): wherein the temperature equalization part (<NUM>, <NUM>) is connected to the flexible connection part (<NUM>) through the accommodation slot (G1, G2).