Foldable electronic device

Abstract

The application provides a foldable electronic device, comprising a flexible display screen and a first shell. A display function layer of the flexible display screen comprises a first non-bending display area, a bending display area and a second non-bending display area arranged in sequence. A cover layer of the flexible display screen comprises a light-transmitting main body part and a first extension part. The light-transmitting main body part covers a display side of the first non-bending display area, the bending display area and the second non-bending display area. The first extension part extends from a side of the first non-bending display area away from the bending display area. The first shell comprises a first shell part and a second shell part connected by bending. The first shell part is located at a side of the first extension part away from the light-transmitting main body part. The second shell part is located at a side of the first non-bending display area away from the light-transmitting main body part. The first shell part is fixedly connected with the first extension part, and the second shell part is flexibly connected with the first non-bending display area. The foldable electronic device provided by the application is conducive to realizing thin and light design and improving appearance performance.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, specifically to a foldable electronic device. Background Technology

[0002] In related technologies, decorative elements are used at the edges of foldable electronic devices to conceal the visual gap between the flexible screen and the casing. However, the addition of decorative elements results in a greater thickness for foldable electronic devices, which is detrimental to their development towards thinner and lighter designs, and also leads to a poorer overall appearance. Summary of the Invention

[0003] This application provides a foldable electronic device that facilitates a thinner and lighter design and enhances aesthetic appeal.

[0004] Specifically, this application provides a foldable electronic device, including:

[0005] A flexible display screen includes a display functional layer and a cover layer. The display functional layer includes a first non-bending display area, a bending display area, and a second non-bending display area arranged sequentially. The cover layer includes a light-transmitting main body and a first extension. The light-transmitting main body covers the display sides of the first non-bending display area, the bending display area, and the second non-bending display area. The first extension extends out from the side of the first non-bending display area away from the bending display area.

[0006] A first housing includes a first housing portion and a second housing portion that are bent and connected together. At least a portion of the first housing portion is located on the side of the first extension portion away from the light-transmitting main body portion, and at least a portion of the second housing portion is located on the side of the first non-bending display area away from the light-transmitting main body portion. The first housing portion is fixedly connected to the first extension portion, and the second housing portion is flexibly connected to the first non-bending display area. The first housing is capable of rotating about a first rotation axis to drive the flexible display screen to bend.

[0007] The foldable electronic device provided in this application has a flexible display screen whose display function layer includes a first non-bending display area, a bending display area, and a second non-bending display area arranged sequentially. The cover layer of the flexible display screen includes a first extension and a light-transmitting main body. The light-transmitting main body covers the display sides of the first non-bending display area, the bending display area, and the second non-bending display area. The first extension extends out from the side of the first non-bending display area away from the bending display area. The first housing includes a first housing part and a second housing part that are bent and connected. At least a portion of the first housing part is located on the side of the first extension away from the light-transmitting main body, and at least a portion of the second housing part is located on the side of the first non-bending display area away from the light-transmitting main body. The first housing part is fixedly connected to the first extension. Therefore, during the bending process of the foldable electronic device, there is basically no relative misalignment between the first extension and the first housing part. The appearance gap between the first extension and the first housing part is fixed or changes very little. Thus, the foldable electronic device does not need to set up decorative parts to cover the appearance gap between the first extension and the first housing part, which is beneficial to remove decorative parts of the foldable electronic device, realize a thin and light design, and improve the appearance. Furthermore, the second housing portion is flexibly connected to the first non-bending display area, so that relative misalignment can occur between the first non-bending display area and the second housing portion during the bending process of the foldable electronic device, thereby reducing or avoiding stress concentration in the first non-bending display area and improving the service life of the flexible display screen. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0009] Figure 1 A schematic diagram of the structure of the foldable electronic device provided in this application embodiment when it is in a flattened state;

[0010] Figure 2 A schematic diagram of the structure of the foldable electronic device provided in the embodiment of this application when it is in a folded state;

[0011] Figure 3 A schematic diagram of the structure of the foldable electronic device provided in this application embodiment when it is in a mid-suspended state;

[0012] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the flexible display screen in the foldable electronic device, including a display function layer and a cover layer.

[0013] Figure 5 for Figure 4 The diagram shows a planar structure of a flexible display screen, comprising a first non-bending display area, a bending display area, and a second non-bending display area arranged sequentially.

[0014] Figure 6 for Figure 5 The diagram shows a teardrop-shaped planar structure of the bent display area of ​​the display function layer when it is folded.

[0015] Figure 7 for Figure 4 The diagram shows a cross-sectional view of the cover layer of the flexible display screen, including a light-transmitting main body and a first extension.

[0016] Figure 8 for Figure 7 The diagram shows a planar structure of the display function layer and cover layer in the flexible display screen.

[0017] Figure 9 for Figure 7 The flexible display shown also includes a cross-sectional view of a touch function layer;

[0018] Figure 10 for Figure 1 The first housing of the foldable electronic device shown includes a first housing part and a second housing part that are bent and connected. The first housing part is fixedly connected to a first extension part, and the second housing part is flexibly connected to a first non-bending display area.

[0019] Figure 11 for Figure 7 The cover layer of the flexible display shown also includes a cross-sectional view of a second extension;

[0020] Figure 12 for Figure 1 The second housing of the foldable electronic device shown includes a third housing portion and a fourth housing portion that are bent and connected together. The third housing portion is fixedly connected to the second extension portion, and the fourth housing portion is flexibly connected to the second non-bending display area.

[0021] Figure 13 for Figure 1 A cross-sectional schematic diagram of the foldable electronic device shown, in which the first housing part and the first extension part are bonded together by the first adhesive, the second housing part and the first non-bending display area are bonded together by the second adhesive, the third housing part and the second extension part are bonded together by the third adhesive, and the fourth housing part and the second non-bending display area are bonded together by the fourth adhesive.

[0022] Figure 14 for Figure 13 The diagram shows a cross-sectional view of the foldable electronic device in the folded state, showing a second gap between the first housing portion and the side of the first non-bending display area away from the bending display area.

[0023] Figure 15 for Figure 13 The diagram shows a cross-sectional view of the foldable electronic device in the folded state, showing a fourth gap between the third housing portion and the side of the second non-bending display area away from the bending display area.

[0024] Figure 16 for Figure 13 A partial cross-sectional schematic diagram of the foldable electronic device shown.

[0025] Figure 17 for Figure 13 A cross-sectional view of the first housing portion of the foldable electronic device shown, including a first connecting surface, the second housing portion including a second connecting surface, the third housing portion including a third connecting surface, and the fourth housing portion including a fourth connecting surface.

[0026] Figure 18 This is a schematic diagram illustrating the displacement of a flexible screen during bending in a related technical solution with decorative elements.

[0027] Figure 19 A schematic diagram illustrating the misalignment of the flexible display screen of the foldable electronic device provided in this application during bending;

[0028] Figure 20 for Figure 16 The foldable electronic device shown also includes a first support member, which is a cross-sectional view of the first sub-bent display area on the side opposite to the light-transmitting main body.

[0029] Figure 21 for Figure 16 The foldable electronic device shown also includes a second support member, which is bonded to the side of the third sub-bending display area away from the light-transmitting main body.

[0030] Figure 22 A planar schematic diagram showing that, in the unfolded state, the side of the first support member facing the first sub-bent display area has a first distance from the first housing, and the side of the second support member facing the third sub-bent display area has a third distance from the second housing;

[0031] Figure 23 A planar schematic diagram showing that, in the foldable electronic device provided in this application, when in the folded state, the side of the first support member facing the first sub-bending display area has a second distance from the first housing, and the side of the second support member facing the third sub-bending display area has a fourth distance from the second housing;

[0032] Figure 24 The foldable electronic device provided in this application also includes a structural schematic diagram of a first rotating connector;

[0033] Figure 25 for Figure 24 The exploded structural diagram of the first support member of the foldable electronic device shown has a first arc groove and the first rotating connector has a first arc block.

[0034] Figure 26 for Figure 24 A cross-sectional view of the first support member of the foldable electronic device shown has a first arc groove and the first rotating connector has a first arc block;

[0035] Figure 27 for Figure 24 The foldable electronic device shown also includes a pivot base and a second rotating connector.

[0036] Figure 28 for Figure 27 The exploded view of the second rotating connector of the foldable electronic device shown has a first limiting block, the first support has a first limiting groove, the first limiting block and the first limiting groove cooperate, the fourth rotating connector has a second limiting block, the second support has a second limiting groove, and the second limiting block and the second limiting groove cooperate.

[0037] Explanation of reference numerals in the attached figures:

[0038] Foldable electronic device 100; flexible display screen 10; first housing 20; display function layer 101; cover layer 102; first non-bending display area 110; bending display area 112; second non-bending display area 113; first sub-bending display area 1120; second sub-bending display area 1121; third sub-bending display area 1122; light-transmitting main body 120; first extension 121; touch function layer 103; first housing part 201; second housing part 202; second extension 122; second housing 30; third housing part 301; fourth housing part 302; first colloid 401; Second colloid 402; Third colloid 403; Fourth colloid 404; First connecting surface 210; Second connecting surface 220; Third connecting surface 310; Fourth connecting surface 320; First support member 501; First arc groove 510; First limiting groove 511; Second support member 502; Second arc groove 520; Second limiting groove 521; First rotating connector 601; First arc block 610; Third rotating connector 603; Second arc block 630; Rotating shaft base 70; Second rotating connector 602; First limiting block 620; Fourth rotating connector 604; Second limiting block 640. Detailed Implementation

[0039] The technical solutions provided in this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the embodiments described in this application are only a part of the embodiments, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort are within the protection scope of this application.

[0040] In this application, the terms "embodiment" or "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment or implementation can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments.

[0041] The terms “first,” “second,” etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, rather than to describe a particular order; the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion.

[0042] Please refer to Figures 1 to 3 The foldable electronic device 100 provided in this application can be a foldable mobile phone, a foldable tablet, etc. This application uses a foldable mobile phone as an example. The foldable electronic device 100 has a flattened state and a folded state. Figure 1 This is a schematic diagram of the structure of the foldable electronic device 100 provided in the embodiments of this application when it is in a flattened state. Figure 2 This is a schematic diagram of the foldable electronic device 100 provided in this application when it is in a folded state. Furthermore, the foldable electronic device 100 may also have one or more intermediate hovering states. Figure 3 This is a schematic diagram of the foldable electronic device 100 provided in this application when it is in a suspended state. The following embodiments are for ease of description. Figure 1 The coordinate system shown is as follows. The X-axis can be understood as the length direction of the foldable electronic device 100; the Y-axis can be understood as the width direction of the foldable electronic device 100; and the Z-axis can be understood as the thickness direction of the foldable electronic device 100. In this embodiment, the bending axis of the foldable electronic device 100 is parallel to the Y-axis, and the foldable electronic device 100 bends around the bending axis to switch between a flattened state, a folded state, and an intermediate hovering state. The foldable electronic device 100 includes a flexible display screen 10, a first housing 20, and a second housing 30. When the foldable electronic device 100 is in the flattened state, the flexible display screen 10 is flattened. When the foldable electronic device 100 is in the folded state, the flexible display screen 10 is bent.

[0043] Among them, such as Figure 4As shown, the flexible display screen 10 can be a flexible organic light-emitting diode (OLED) display screen. The flexible display screen 10 includes a display functional layer 101 and a cover layer 102. The display functional layer 101 and the cover layer 102 are stacked along the Z-axis when the foldable electronic device 100 is in a flattened state. The display functional layer 101 is flexible, meaning it can be bent. The display functional layer 101 is capable of emitting light. Optionally, the display functional layer 101 may include a positive electrode layer, an OLED light-emitting layer, a negative electrode layer, and a flexible substrate supported on the side of the positive electrode layer facing away from the OLED light-emitting layer or on the side of the negative electrode layer facing away from the OLED light-emitting layer, stacked sequentially along the Z-axis; or, the display functional layer 101 may further include a hole transport layer located between the positive electrode layer and the OLED light-emitting layer; or, the display functional layer 101 may further include an electron transport layer located between the OLED light-emitting layer and the negative electrode layer. The cover layer 102 allows light emitted from the display functional layer 101 to pass through, and also protects the display functional layer 101. The cover layer 102 is flexible, meaning it can be bent. Optionally, the cover layer 102 may include a glass cover or a plastic cover, etc.

[0044] like Figure 5 As shown, the display functional layer 101 includes a first non-bending display area 110, a bending display area 112, and a second non-bending display area 113 arranged sequentially. In this embodiment, the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113 of the display functional layer 101 are arranged sequentially along the X-axis when the foldable electronic device 100 is in a flattened state. The first non-bending display area 110 and the second non-bending display area 113 do not bend when the state of the foldable electronic device 100 changes, while the bending display area 112 bends when the state of the foldable electronic device 100 changes.

[0045] like Figure 6As shown, in one possible embodiment, the foldable display area 112 can be approximately teardrop-shaped when the foldable electronic device 100 is in a folded state. Specifically, the foldable display area 112 may include a first sub-foldable display area 1120, a second sub-foldable display area 1121, and a third sub-foldable display area 1122 arranged sequentially. The first sub-foldable display area 1120 is adjacent to the first non-foldable display area 110. The third sub-foldable display area 1122 is adjacent to the second non-foldable display area 113. It can be understood that the flexible display screen 10 includes a first non-foldable display area 110, a first sub-foldable display area 1120, a second sub-foldable display area 1121, a third sub-foldable display area 1122, and a second non-foldable display area 113 arranged sequentially. The line dimension between the end of the first sub-foldable display area 1120 away from the second sub-foldable display area 1121 and the end of the third sub-foldable display area 1122 away from the second sub-foldable display area 1121 is L1. The dimension of the line connecting the end of the first sub-bent display area 1120 near the second sub-bent display area 1121 and the end of the third sub-bent display area 1122 near the second sub-bent display area 1121 is L2. L1 is less than L2. Of course, in other possible embodiments, the bent display area 112 may also be approximately U-shaped when the foldable electronic device 100 is in a folded state, that is, L1 may be greater than or equal to L2; or, the bent display area 112 may be in a naturally bent state when the foldable electronic device 100 is in a folded state.

[0046] Please refer to Figure 7 and Figure 8The cover layer 102 includes a light-transmitting main body portion 120 and a first extension portion 121. In this embodiment, the first extension portion 121 and the light-transmitting main body portion 120 of the cover layer 102 are arranged along the X-axis when the foldable electronic device 100 is in a flattened state. The light-transmitting main body portion 120 covers the display side of the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113. The display side of the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113 is the light-emitting side of the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113. The projected area of ​​the light-transmitting main body portion 120 is the same as the sum of the projected areas of the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113. The light-transmitting main body 120 allows light emitted from the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113 to pass through. The first extension 121 extends from the side of the first non-bending display area 110 away from the bending display area 112. In other words, one side of the cover layer 102 extends outward relative to the display functional layer 101 to form the first extension 121. It is understood that the length of the cover layer 102 is greater than the length of the display functional layer 101. Specifically, taking the foldable electronic device 100 in a flattened state as an example, the length of the cover layer 102 can be understood as the dimension of the cover layer 102 along the X-axis when the foldable electronic device 100 is in a flattened state; the length of the display functional layer 101 can be understood as the dimension of the display functional layer 101 along the X-axis when the foldable electronic device 100 is in a flattened state.

[0047] Of course, such as Figure 9 As shown, the flexible display screen 10 may further include a touch function layer 103. The touch function layer 103 may be disposed between the display function layer 101 and the cover layer 102. Taking the foldable electronic device 100 in a flattened state as an example, the touch function layer 103 may be disposed between the display function layer 101 and the cover layer 102 along the Z-axis when the foldable electronic device 100 is in a flattened state. Optionally, the touch function layer 103 may include a resistive touch screen or a capacitive touch screen, etc.

[0048] like Figure 10As shown, the first housing 20 is an outer shell located on one side of the bending axis of the foldable electronic device 100. The material of the first housing 20 may include metal, alloy, plastic, etc. The first housing 20 includes a first housing portion 201 and a second housing portion 202 that are bent and connected. The first housing portion 201 and the second housing portion 202 may be integrally connected, i.e., integrally molded; or they may be connected together by a fixed connection. The fixed connection between the first housing portion 201 and the second housing portion 202 includes, but is not limited to, bonding, welding, threaded connection, snap-fit ​​connection, etc. At least a portion of the first housing portion 201 is located on the side of the first extension 121 opposite to the light-transmitting main body portion 120. There may be a gap between the first housing portion 201 and the side of the first extension 121 opposite to the light-transmitting main body portion 120, or the first housing portion 201 and the side of the first extension 121 opposite to the light-transmitting main body portion 120 may also be in contact. At least a portion of the second housing portion 202 is located on the side of the first non-bending display area 110 opposite to the light-transmitting main body portion 120. In this application, the first housing portion 201 can be understood as the side portion of the first housing 20; the second housing portion 202 can be understood as the bottom portion of the first housing 20. When the foldable electronic device 100 is in a flattened state, at least a portion of the first housing portion 201 extends along the Z-axis direction. When the foldable electronic device 100 is in a flattened state, at least a portion of the second housing portion 202 extends along the X-axis direction.

[0049] The first housing portion 201 is fixedly connected to the first extension portion 121. Specifically, the fixed connection between the first housing portion 201 and the first extension portion 121 means that no relative misalignment can occur between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100, or that relative misalignment can occur between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100, but the amount of misalignment is extremely small. The second housing portion 202 is flexibly connected to the first non-bending display area 110. Specifically, the flexible connection between the second housing portion 202 and the first non-bending display area 110 means that relative misalignment can occur between the second housing portion 202 and the first non-bending display area 110 during the bending process of the foldable electronic device 100. It can be understood that the amount of misalignment between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100 is less than the amount of misalignment between the second housing portion 202 and the first non-bending display area 110.

[0050] In this embodiment, during the bending process of the foldable electronic device 100, the first housing portion 201 and the first extension portion 121 can undergo relative misalignment, but the amount of misalignment is extremely small, meaning that the amount of misalignment between the first housing portion 201 and the first extension portion 121 during the bending process is almost imperceptible to the naked eye. The second housing portion 202 and the first non-bending display area 110 can undergo relative misalignment, meaning that the amount of misalignment between the second housing portion 202 and the first non-bending display area 110 during the bending process of the foldable electronic device 100 is observable to the naked eye. In one possible embodiment, the first housing portion 201 and the first extension portion 121 are fixedly connected, and the amount of misalignment between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100 is greater than or equal to zero and less than or equal to 0.1 mm. The second housing portion 202 is flexibly connected to the first non-bending display area 110. During the bending process of the foldable electronic device 100, the misalignment between the second housing portion 202 and the first non-bending display area 110 is greater than or equal to 0.2 mm.

[0051] Based on the amount of misalignment between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100, the distance between the side of the first housing portion 201 and the first extension portion 121 away from the light-transmitting main body portion 120 can be designed. The distance between the side of the first housing portion 201 and the first extension portion 121 away from the light-transmitting main body portion 120 can be referred to the attached figure. Figure 10 Specifically, when there is no relative misalignment between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100, the sides of the first housing portion 201 and the first extension portion 121 facing away from the light-transmitting main body portion 120 can come into contact, that is, the distance between the sides of the first housing portion 201 and the first extension portion 121 facing away from the light-transmitting main body portion 120 can be zero. It is understood that the appearance gap between the first housing 20 and the flexible display screen 10 in this application can be zero. When there is relative misalignment between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100 and the misalignment amount is less than or equal to 0.1 mm, the distance between the sides of the first housing portion 201 and the first extension portion 121 facing away from the light-transmitting main body portion 120 can be greater than zero and less than or equal to 0.1 mm. Of course, when there is no relative misalignment between the first housing portion 201 and the first extension portion 121 during the bending process of the foldable electronic device 100, the side of the first housing portion 201 and the first extension portion 121 away from the light-transmitting main body portion 120 can also have a small gap. Of course, in other embodiments, the distance between the side of the first housing portion 201 and the first extension portion 121 away from the light-transmitting main body portion 120 can also be designed according to other assembly requirements, sealing requirements, etc.

[0052] The first housing 20 is rotatable about a first rotation axis to cause the flexible display screen 10 to bend. In this embodiment, the first rotation axis is parallel to the Y-axis. It is understood that the bending axis of the foldable electronic device 100 includes the first rotation axis. In this embodiment, the first housing 20 can rotate clockwise about the first rotation axis to switch one side of the flexible display screen 10 from a flattened state to a folded state, or it can rotate counterclockwise about the first rotation axis to switch one side of the flexible display screen 10 from a folded state to a flattened state. Of course, in other embodiments, the first housing 20 can rotate counterclockwise about the first rotation axis to switch one side of the flexible display screen 10 from a flattened state to a folded state, or it can rotate clockwise about the first rotation axis to switch one side of the flexible display screen 10 from a folded state to a flattened state.

[0053] The foldable electronic device 100 provided in this application has a flexible display screen 10 whose display function layer 101 includes a first non-bending display area 110, a bending display area 112, and a second non-bending display area 113 arranged sequentially. The cover layer 102 of the flexible display screen 10 includes a first extension 121 and a light-transmitting main body 120. The light-transmitting main body 120 covers the display side of the first non-bending display area 110, the bending display area 112, and the second non-bending display area 113. The first extension 121 extends from the side of the first non-bending display area 110 away from the bending display area 112. The first housing 20 includes a first housing part 201 and a second housing part 202 that are bent and connected. At least a portion of the first housing part 201 is located on the first extension. The first housing portion 201 is located on the side of the first non-bending display area 110 away from the light-transmitting main body portion 120, and at least part of the second housing portion 202 is located on the side of the first non-bending display area 110 away from the light-transmitting main body portion 120. The first housing portion 201 is fixedly connected to the first extension portion 121. Therefore, during the bending process of the foldable electronic device 100, there is basically no relative misalignment between the first extension portion 121 and the first housing portion 201. The appearance gap between the first extension portion 121 and the first housing portion 201 is fixed or changes very little. Thus, the foldable electronic device 100 does not need to set up decorative parts to cover the appearance gap between the first extension portion 121 and the first housing portion 201. This is beneficial to remove the decorative parts of the foldable electronic device 100, realize a thin and light design, and improve the appearance. Furthermore, the second housing portion 202 is flexibly connected to the first non-bending display area 110, so that relative misalignment can occur between the first non-bending display area 110 and the second housing portion 202 during the bending process of the foldable electronic device 100, thereby reducing or avoiding stress concentration in the first non-bending display area 110 and improving the service life of the flexible display screen 10.

[0054] like Figure 11As shown, the cover layer 102 also includes a second extension 122. In this embodiment, the first extension 121, the light-transmitting main body 120, and the second extension 122 of the cover layer 102 are arranged sequentially along the X-axis when the foldable electronic device 100 is in a flattened state. The second extension 122 extends outward from the side of the second non-bending display area 113 away from the bending display area 112. In other words, the other side of the cover layer 102 extends outward relative to the display functional layer 101 to form the second extension 122. It can be understood that the length of the cover layer 102 is equal to the sum of the length of the first extension 121, the length of the display functional layer 101, and the length of the second extension 122. Taking the foldable electronic device 100 in its flattened state as an example, the length of the first extension 121 can be understood as its dimension along the X-axis when the foldable electronic device 100 is in its flattened state, and the length of the second extension 122 can be understood as its dimension along the X-axis when the foldable electronic device 100 is in its flattened state. The length of the second extension 122 can be the same as or different from the length of the first extension 121, and can be designed according to actual requirements.

[0055] like Figure 12 As shown, the foldable electronic device 100 also includes a second housing 30. The second housing 30 is an outer shell located on the other side of the bending axis of the foldable electronic device 100. The material of the second housing 30 may include metal, alloy, plastic, etc. The second housing 30 includes a third housing portion 301 and a fourth housing portion 302 that are bent and connected. The third housing portion 301 and the fourth housing portion 302 may be integrally connected, i.e., integrally molded; or they may be connected together by a fixed connection. The fixed connection between the third housing portion 301 and the fourth housing portion 302 includes, but is not limited to, bonding, welding, threaded connection, snap-fit ​​connection, etc. At least a portion of the third housing portion 301 is located on the side of the second extension 122 opposite to the light-transmitting main body portion 120. There may be a gap between the third housing portion 301 and the side of the second extension 122 opposite to the light-transmitting main body portion 120, or the third housing portion 301 and the side of the third extension opposite to the light-transmitting main body portion 120 may also be in contact. At least a portion of the fourth housing portion 302 is located on the side of the second non-bending display area 113 opposite to the light-transmitting main body portion 120. In this application, the third housing portion 301 can be understood as the side portion of the second housing portion 30; the fourth housing portion 302 can be understood as the bottom of the second housing portion 30. When the foldable electronic device 100 is in a flattened state, at least a portion of the third housing portion 301 extends along the Z-axis direction. When the foldable electronic device 100 is in a flattened state, at least a portion of the fourth housing portion 302 extends along the X-axis direction.

[0056] The third housing portion 301 is fixedly connected to the second extension portion 122. Specifically, the fixed connection between the third housing portion 301 and the second extension portion 122 means that no relative misalignment can occur between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100, or that relative misalignment can occur between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100, but the amount of misalignment is extremely small. The fourth housing portion 302 is flexibly connected to the second non-bending display area 113. Specifically, the flexible connection between the fourth housing portion 302 and the second non-bending display area 113 means that relative misalignment can occur between the fourth housing portion 302 and the second non-bending display area 113 during the bending process of the foldable electronic device 100. It can be understood that the amount of misalignment between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100 is less than the amount of misalignment between the fourth housing portion 302 and the second non-bending display area 113.

[0057] In this embodiment, during the bending process of the foldable electronic device 100, the third housing portion 301 and the second extension portion 122 can undergo relative misalignment, but the amount of misalignment is extremely small, meaning that the amount of misalignment between the third housing portion 301 and the second extension portion 122 during the bending process is almost imperceptible to the naked eye. The fourth housing portion 302 and the second non-bending display area 113 can undergo relative misalignment, meaning that the amount of misalignment between the fourth housing portion 302 and the second non-bending display area 113 during the bending process of the foldable electronic device 100 is observable to the naked eye. In one possible embodiment, the third housing portion 301 and the second extension portion 122 are fixedly connected, and the amount of misalignment between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100 is greater than or equal to zero and less than or equal to 0.1 mm. The fourth housing portion 302 is flexibly connected to the second non-bending display area 113. During the bending process of the foldable electronic device 100, the misalignment between the fourth housing portion 302 and the second non-bending display area 113 is greater than or equal to 0.2 mm.

[0058] Based on the amount of misalignment between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100, the distance between the side of the third housing portion 301 and the second extension portion 122 away from the light-transmitting main body portion 120 can be designed. The distance between the side of the third housing portion 301 and the second extension portion 122 away from the light-transmitting main body portion 120 can be referred to the attached figure. Figure 12Specifically, when there is no relative misalignment between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100, the sides of the third housing portion 301 and the second extension portion 122 opposite to the light-transmitting main body portion 120 can be in contact, that is, the distance between the sides of the third housing portion 301 and the second extension portion 122 opposite to the light-transmitting main body portion 120 can be zero. It is understood that the appearance gap between the second housing 30 and the flexible display screen 10 in this application can be zero. When there is relative misalignment between the third housing portion 301 and the first extension portion 121 during the bending process of the foldable electronic device 100 and the misalignment amount is less than or equal to 0.1 mm, the distance between the sides of the first housing portion 201 and the first extension portion 121 opposite to the light-transmitting main body portion 120 can be greater than zero and less than or equal to 0.1 mm. Of course, when there is no relative misalignment between the third housing portion 301 and the second extension portion 122 during the bending process of the foldable electronic device 100, the side of the third housing portion 301 and the second extension portion 122 away from the light-transmitting main body portion 120 can also have a small gap. Of course, in other embodiments, the distance between the side of the third housing portion 301 and the second extension portion 122 away from the light-transmitting main body portion 120 can also be designed according to other assembly requirements, sealing requirements, etc.

[0059] The second housing 30 is rotatable about a third rotation axis to fold the other side of the flexible display screen 10. In this embodiment, the third rotation axis is parallel to the Y-axis. It is understood that the bending axis of the foldable electronic device 100 also includes the third rotation axis. The second housing 30 can rotate counterclockwise about the third rotation axis to switch one side of the flexible display screen 10 from a flattened state to a folded state, or it can rotate clockwise about the third rotation axis to switch one side of the flexible display screen 10 from a folded state to a flattened state. Of course, in other embodiments, the second housing 30 can rotate clockwise about the third rotation axis to switch one side of the flexible display screen 10 from a flattened state to a folded state, or it can rotate counterclockwise about the third rotation axis to switch one side of the flexible display screen 10 from a folded state to a flattened state. It is understood that during the bending process of the foldable electronic device 100, the rotation direction of the second housing 30 is opposite to the rotation direction of the first housing 20.

[0060] Since the cover layer 102 of the flexible display screen 10 also includes a second extension 122, which extends away from the side of the second non-bending display area 113 away from the bending display area 112, and the third housing part 301 of the second housing 30 is fixedly connected to the second extension 122 of the flexible display screen 10, there is basically no relative misalignment between the second extension 122 and the third housing part 301 during the bending process of the foldable electronic device 100. The appearance gap between the second extension 122 and the third housing part 301 is fixed or changes very little. Therefore, the foldable electronic device 100 does not need to set up decorative parts to cover the appearance gap between the second extension 122 and the third housing part 301, which is conducive to removing the decorative parts on the other side of the foldable electronic device 100, realizing a thin and light design and improving the appearance. Furthermore, the fourth housing portion 302 of the second housing 30 is flexibly connected to the second non-bending display area 113 of the flexible display screen 10. Therefore, during the bending process of the foldable electronic device 100, relative misalignment can occur between the second non-bending display area 113 and the fourth housing portion 302, thereby reducing or avoiding stress concentration in the second non-bending display area 113 and improving the service life of the flexible display screen 10.

[0061] like Figure 13 As shown, the first housing portion 201 is bonded to the first extension portion 121. The second housing portion 202 is bonded to the first non-bending display area 110. The adhesive strength between the first housing portion 201 and the first extension portion 121 is higher than the adhesive strength between the second housing portion 202 and the first non-bending display area 110. It can be understood that the first housing portion 201 and the first extension portion 121 are bonded together with an adhesive to achieve a fixed connection. The second housing portion 202 and the first non-bending display area 110 are bonded together with an adhesive to achieve a flexible connection.

[0062] The first housing portion 201 is bonded to the first extension portion 121, and the second housing portion 202 is bonded to the first non-bending display area 110. The bonding strength between the first housing portion 201 and the first extension portion 121 is higher than the bonding strength between the second housing portion 202 and the first non-bending display area 110. This allows the connection between the first housing portion 201 and the first extension portion 121 to be a fixed connection, while the connection between the second housing portion 202 and the first non-bending display area 110 is a flexible connection. As a result, during the bending process of the foldable electronic device 100, no relative misalignment occurs between the first housing portion 201 and the first extension portion 121, while relative misalignment occurs between the second housing portion 202 and the first non-bending display area 110. This solves the technical problem in related technologies where the thickness of the foldable electronic device 100 is large and the overall appearance is poor due to the use of decorative parts to cover the appearance gap between the first housing 20 and the flexible display screen 10. Furthermore, since the second housing portion 202 and the first non-bending display area 110 are bonded together with an adhesive to achieve a flexible connection, the adhesive itself is flexible and can absorb part of the misalignment between the second housing portion 202 and the first non-bending display area 110, reducing the stress and deformation of the first non-bending display area 110. This helps to improve the smoothness of the relative misalignment between the second housing portion 202 and the first non-bending display area 110, and avoids the first non-bending display area 110 from becoming redundant in length and arching.

[0063] The third housing portion 301 is bonded to the second extension portion 122. The fourth housing portion 302 is bonded to the second non-bending display area 113. The bonding strength between the third housing portion 301 and the second extension portion 122 is higher than the bonding strength between the fourth housing portion 302 and the second non-bending display area 113. It is understood that the first housing portion 201 and the first extension portion 121 are bonded together with an adhesive to achieve a fixed connection. The second housing portion 202 and the first non-bending display area 110 are bonded together with an adhesive to achieve a flexible connection.

[0064] The third housing portion 301 is bonded to the second extension portion 122, and the fourth housing portion 302 is bonded to the second non-bending display area 113. The bonding strength between the third housing portion 301 and the second extension portion 122 is higher than that between the fourth housing portion 302 and the second non-bending display area 113. This allows the connection between the third housing portion 301 and the second extension portion 122 to be a fixed connection, while the connection between the fourth housing portion 302 and the second non-bending display area 113 is a flexible connection. As a result, during the bending process of the foldable electronic device 100, no relative misalignment occurs between the third housing portion 301 and the second extension portion 122, while relative misalignment occurs between the second housing portion 202 and the second non-bending display area 113. This solves the technical problem in related technologies where the appearance gap between the second housing 30 and the flexible display screen 10 is covered by decorative parts, resulting in a large thickness and poor overall appearance of the foldable electronic device 100. Furthermore, since the fourth housing portion 302 and the second non-bending display area 113 are bonded together with an adhesive to achieve a flexible connection, the adhesive itself is flexible and can absorb part of the misalignment between the fourth housing portion 302 and the second non-bending display area 113, reducing the stress and deformation of the second non-bending display area 113. This helps to improve the smoothness of the relative misalignment between the fourth housing portion 302 and the second non-bending display area 113, and avoids the second non-bending display area 113 from becoming redundant in length and arching.

[0065] Optionally, the first housing portion 201 and the first extension portion 121 are bonded together by a first adhesive 401, and the second housing portion 202 and the first non-bending display area 110 are bonded together by a second adhesive 402. The tensile modulus of the first adhesive 401 is higher than that of the second adhesive 402. The first adhesive 401 may have characteristics such as high strength, high hardness, and wear resistance. The second adhesive 402 may have characteristics such as high elongation, high elasticity, and low hardness. In one possible embodiment, the tensile modulus of the first adhesive 401 may be greater than 0.4 MPa. The modulus of the second adhesive 402 may be less than or equal to 0.4 MPa.

[0066] The first housing portion 201 and the first extension portion 121 are bonded together by a first colloid 401 with a high tensile modulus, and the second housing portion 202 and the first non-bending display area 110 are bonded together by a second colloid 402 with a low tensile modulus. This makes it easier to achieve a higher bonding strength between the first housing portion 201 and the first extension portion 121 than between the second housing portion 202 and the first non-bending display area 110. This helps to reduce or avoid relative misalignment between the first housing portion 201 and the first extension portion 121 and improves the smoothness of relative misalignment between the second housing portion 202 and the first non-bending display area 110. Furthermore, the second housing portion 202 and the first non-bending display area 110 are bonded together by a second colloid 402 with a low tensile modulus. The second colloid 402 itself has good flexibility, and the deformation of the second colloid 402 is large during the bending process of the foldable electronic device 100. This allows it to absorb more of the misalignment between the first non-bending display area 110 and the second housing portion 202, and further improves the smoothness of the relative misalignment between the second housing portion 202 and the first non-bending display area 110, avoiding stress concentration or arching of the first non-bending display area 110 due to length redundancy. Of course, in other possible embodiments, the tensile modulus of the first colloid 401 and the tensile modulus of the second colloid 402 can be the same, that is, the first colloid 401 and the second colloid 402 can also be the same type of colloid.

[0067] Optionally, the third housing portion 301 is bonded to the second extension portion 122 via a third adhesive 403, and the fourth housing portion 302 is bonded to the second non-bending display area 113 via a fourth adhesive 404. The tensile modulus of the third adhesive 403 is higher than that of the fourth adhesive 404. The third adhesive 403 may possess characteristics such as high strength, high hardness, and wear resistance. The fourth adhesive 404 may possess characteristics such as high elongation, high elasticity, and low hardness. In one possible embodiment, the tensile modulus of the third adhesive 403 may be greater than 0.4 MPa. The modulus of the fourth adhesive 404 may be less than or equal to 0.4 MPa.

[0068] The third housing portion 301 and the second extension portion 122 are bonded together by a third colloid 403 with a high tensile modulus, and the fourth housing portion 302 and the second non-bending display area 113 are bonded together by a fourth colloid 404 with a low tensile modulus. This makes it easier to achieve a higher bonding strength between the third housing portion 301 and the second extension portion 122 than between the fourth housing portion 302 and the second non-bending display area 113. This helps to reduce or avoid relative misalignment between the third housing portion 301 and the second extension portion 122 and improves the smoothness of relative misalignment between the fourth housing portion 302 and the second non-bending display area 113. Furthermore, the fourth housing portion 302 and the second non-bending display area 113 are bonded together by a fourth colloid 404 with a low tensile modulus. The fourth colloid 404 itself has good flexibility, and the deformation of the fourth colloid 404 is large during the bending process of the foldable electronic device 100. This allows it to absorb more of the misalignment between the second non-bending display area 113 and the fourth housing portion 302, and further improves the smoothness of the relative misalignment between the fourth housing portion 302 and the second non-bending display area 113, avoiding stress concentration or arching of the second non-bending display area 113 due to length redundancy. Of course, in other possible embodiments, the tensile modulus of the third colloid 403 and the tensile modulus of the fourth colloid 404 can be the same, that is, the third colloid 403 and the fourth colloid 404 can also be the same type of colloid.

[0069] In one possible embodiment, the tensile modulus of the first colloid 401 and the third colloid 403 can be the same, and the tensile modulus of the second colloid 402 and the fourth colloid 404 can be the same. That is, the first colloid 401 and the third colloid 403 can be the same type of colloid, and the second colloid 402 and the fourth colloid 404 can be the same type of colloid. Optionally, the first colloid 401 and the third colloid 403 are ultraviolet-curable (UV) adhesives; the second colloid 402 and the fourth colloid 404 are double-sided adhesives.

[0070] Optionally, the first housing portion 201 and the first extension portion 121 are bonded together by an adhesive dispensing process. For example, the first housing portion 201 and the first extension portion 121 can be bonded together by a manual adhesive dispensing process; or, the first housing portion 201 and the first extension portion 121 can be bonded together by an adhesive dispensing machine. Bonding the first housing portion 201 and the first extension portion 121 by an adhesive dispensing process involves applying, potting, or dripping a first adhesive 401 between the first housing portion 201 and the first extension portion 121. The second housing portion 202 and the first non-bending display area 110 are bonded together by an adhesive bonding process. Bonding the second housing portion 202 and the first non-bending display area 110 by an adhesive bonding process involves attaching a second adhesive 402 to one of the second housing portion 202 and the first non-bending display area 110, and then attaching it to the other of the two.

[0071] By bonding the first housing portion 201 to the first extension portion 121 using an adhesive dispensing process, and bonding the second housing portion 202 to the first non-bending display area 110 using an adhesive bonding process, it is beneficial to achieve a higher bonding strength between the first housing portion 201 and the first extension portion 121 than between the second housing portion 202 and the first non-bending display area 110. This helps to reduce or avoid relative misalignment between the first housing portion 201 and the first extension portion 121, and improves the smoothness of relative misalignment between the second housing portion 202 and the first non-bending display area 110. Furthermore, the second housing portion 202 is bonded to the first non-bending display area 110 using an adhesive bonding process. This increases the connection flexibility between the second housing portion 202 and the first non-bending display area 110, thereby absorbing more of the misalignment between the first non-bending display area 110 and the second housing portion 202. It also further improves the smoothness of relative misalignment between the second housing portion 202 and the first non-bending display area 110, preventing the first non-bending display area 110 from becoming redundant in length and arching. Of course, in other possible embodiments, the bonding process between the first housing portion 201 and the first extension portion 121, and the bonding process between the second housing portion 202 and the first non-bending display area 110, can be the same.

[0072] Optionally, the third housing portion 301 and the second extension portion 122 are bonded together by an adhesive dispensing process. For example, the third housing portion 301 and the second extension portion 122 can be bonded together by a manual adhesive dispensing process; or, the third housing portion 301 and the second extension portion 122 can be bonded together by an adhesive dispensing machine. Bonding the third housing portion 301 and the second extension portion 122 by an adhesive dispensing process involves applying, potting, or dripping a third adhesive 403 between the third housing portion 301 and the second extension portion 122. The fourth housing portion 302 and the second non-bending display area 113 are bonded together by an adhesive bonding process. Bonding the fourth housing portion 302 and the second non-bending display area 113 by an adhesive bonding process involves attaching a fourth adhesive 404 to one of the fourth housing portion 302 and the second non-bending display area 113, and then attaching it to the other of the fourth housing portion 302 and the second non-bending display area 113.

[0073] By bonding the third housing portion 301 to the second extension portion 122 using an adhesive dispensing process, and bonding the fourth housing portion 302 to the second non-bending display area 113 using an adhesive bonding process, it is beneficial to achieve a higher bonding strength between the third housing portion 301 and the second extension portion 122 than between the fourth housing portion 302 and the second non-bending display area 113. This helps to reduce or avoid relative misalignment between the third housing portion 301 and the second extension portion 122, and improves the smoothness of relative misalignment between the fourth housing portion 302 and the second non-bending display area 113. Furthermore, the fourth housing portion 302 is bonded to the second non-bending display area 113 using an adhesive bonding process. This increases the connection flexibility between the fourth housing portion 302 and the second non-bending display area 113, thereby absorbing more of the misalignment between the second non-bending display area 113 and the fourth housing portion 302. It also further improves the smoothness of relative misalignment between the fourth housing portion 302 and the second non-bending display area 113, preventing the second non-bending display area 113 from becoming redundant in length and arching. Of course, in other possible embodiments, the bonding process between the third housing portion 301 and the second extension portion 122, and the bonding process between the fourth housing portion 302 and the second non-bending display area 113, can be the same.

[0074] Please refer to Figure 13 and Figure 14 A gap exists between the first housing portion 201 and the side of the first non-bending display area 110 opposite to the bending display area 112. When the foldable electronic device 100 is in a flattened state, this gap is a first gap. When the foldable electronic device 100 is in a folded state, this gap is a second gap. The size of the first gap is smaller than the size of the second gap. The first gap can be referred to in the attached diagram. Figure 13 L5 in the middle. The second gap can be referred to in the appendix. Figure 14 L6 in the figure. During the transition from a flattened state to a folded state, the first non-bending display area 110 of the foldable electronic device 100 in this application shifts relative to the first housing 20 toward the side where the bending display area 112 is located; that is, one side of the display functional layer 101 shifts inward. The direction of shift of the first non-bending display area 110 relative to the first housing 20 can be referred to in the appendix. Figure 14 The direction of a.

[0075] By creating a gap between the first housing portion 201 and the side of the first non-bending display area 110 facing away from the bending display area 112, it is possible to prevent collisions between the first housing portion 201 and the first non-bending display area 110 during bending or when the foldable electronic device 100 is dropped or impacted, thus avoiding damage to the flexible display screen 10. Furthermore, by making the gap between the first housing portion 201 and the side of the first non-bending display area 110 facing away from the bending display area 112 smaller when the foldable electronic device 100 is in a flattened state than the gap between the first housing portion 201 and the side of the first non-bending display area 110 facing away from the bending display area 112 when the foldable electronic device 100 is in a folded state, it is beneficial to reduce the size of the gap between the first housing portion 201 and the side of the first non-bending display area 110 facing away from the bending display area 112. This allows for a reduction in the size of the first extension portion 121, increases the proportion of the display area of ​​the foldable electronic device 100 in the flattened state, and reduces the non-display border of the foldable electronic device 100. The size of the first extension 121 in the flattened state can be equal to the sum of the connection size between the first extension 121 and the first housing portion 201, and the size of the gap between the first housing portion 201 and the side of the first non-bent display area 110 away from the bent display area 112. In this embodiment, since the gap between the first housing portion 201 and the side of the first non-bending display area 110 away from the bending display area 112 when the foldable electronic device 100 is in the flattened state is smaller than the gap between the first housing portion 201 and the side of the first non-bending display area 110 away from the bending display area 112 when the foldable electronic device 100 is in the folded state, that is, the first non-bending display area 110 is offset relative to the side of the first housing 20 facing the bending display area 112, the gap between the first housing portion 201 and the side of the first non-bending display area 110 away from the bending display area 112 when the foldable electronic device 100 is in the flattened state can be designed to be smaller, that is, the size of the gap between the first housing portion 201 and the side of the first non-bending display area 110 away from the bending display area 112 when the foldable electronic device 100 is in the flattened state can be close to zero.

[0076] Please refer to Figure 13 and Figure 15 A gap exists between the third housing portion 301 and the side of the second non-bending display area 113 opposite to the bending display area 112. When the foldable electronic device 100 is in a flattened state, this gap is a third gap. When the foldable electronic device 100 is in a folded state, this gap is a fourth gap. The size of the third gap is smaller than the size of the fourth gap. The third gap can be referred to in the attached diagram. Figure 13 L7 in the middle. The second gap can be referred to in the appendix. Figure 15 L8 in the figure. In this application, during the process of switching the foldable electronic device 100 from a flat state to a folded state, the second non-bending display area 113 is offset relative to the second housing 30 toward the side where the bending display area 112 is located, that is, the other side of the display function layer 101 is offset inward. The direction of the offset of the second non-bending display area 113 relative to the second housing 30 can be referred to in the appendix. Figure 15 The direction of a.

[0077] By creating a gap between the third housing portion 301 and the side of the second non-bending display area 113 facing away from the bending display area 112, it is possible to prevent collisions between the third housing portion 301 and the second non-bending display area 113 during bending or when the foldable electronic device 100 is dropped or impacted, thus avoiding damage to the flexible display screen 10. Furthermore, by making the gap between the third housing portion 301 and the side of the second non-bending display area 113 facing away from the bending display area 112 smaller when the foldable electronic device 100 is in a flattened state than the gap between the third housing portion 301 and the side of the second non-bending display area 113 facing away from the bending display area 112 when the foldable electronic device 100 is in a folded state, it is beneficial to reduce the size of the gap between the third housing portion 301 and the side of the second non-bending display area 113 facing away from the bending display area 112. This allows for a reduction in the size of the second extension portion 122, increases the proportion of the display area of ​​the foldable electronic device 100 in the flattened state, and reduces the non-display border of the foldable electronic device 100. The size of the second extension 122 in the flattened state can be equal to the sum of the connection size between the second extension 122 and the third housing 301, and the size of the gap between the third housing 301 and the side of the second non-bent display area 113 away from the bent display area 112. In this embodiment, since the gap between the third housing portion 301 and the side of the second non-bending display area 113 away from the bending display area 112 when the foldable electronic device 100 is in the flattened state is smaller than the gap between the third housing portion 301 and the side of the second non-bending display area 113 away from the bending display area 112 when the foldable electronic device 100 is in the folded state, that is, the second non-bending display area 113 is offset relative to the side of the second housing 30 facing the bending display area 112, the gap between the third housing portion 301 and the side of the second non-bending display area 113 away from the bending display area 112 when the foldable electronic device 100 is in the flattened state can be designed to be smaller, that is, the size of the gap between the third housing portion 301 and the side of the second non-bending display area 113 away from the bending display area 112 when the foldable electronic device 100 is in the flattened state can be close to zero.

[0078] like Figure 16As shown, in one possible embodiment, the protrusion dimension of the first extension 121 is 1.5mm to 2mm. Taking the foldable electronic device 100 in a flattened state as an example in this application embodiment, the protrusion dimension of the first extension 121 is the protrusion dimension of the first extension 121 relative to the first non-bending display area 110 along the X-axis when the foldable electronic device 100 is in a flattened state. Refer to the attached diagram. Figure 16 The dimension L9. By designing the extension dimension of the first extension 121 to be 1.5mm to 2mm, the strength of the fixed connection between the first extension 121 and the first housing part 201 can be guaranteed, so that the first extension 121 has no misalignment or minimal misalignment relative to the first housing part 201 during the bending process of the foldable electronic device 100. Moreover, the extension dimension of the first extension 121 of 1.5mm to 2mm can increase the display area ratio of the flexible display screen 10 and reduce the non-display border of the foldable electronic device 100.

[0079] In one possible embodiment, the protrusion dimension of the third extension is 1.5mm to 2mm. Taking the foldable electronic device 100 in a flattened state as an example in this application embodiment, the protrusion dimension of the third extension is the dimension of the third extension along the X-axis when the foldable electronic device 100 is in a flattened state, as shown in the attached figure. Figure 16 The dimension L10. By designing the extension dimension of the third extension to be 1.5mm to 2mm, the strength of the fixed connection between the third extension and the third housing 301 can be guaranteed, so that the third extension has no misalignment or minimal misalignment relative to the third housing 301 during the bending process of the foldable electronic device 100. In addition, the extension dimension of the third extension to be 1.5mm to 2mm can increase the display area ratio of the flexible display screen 10 and reduce the non-display border of the foldable electronic device 100.

[0080] Please refer to Figure 16 and Figure 17The first housing portion 201 includes a first connecting surface 210. The first connecting surface 210 is located on the side of the first non-bending display area 110 away from the bending display area 112 and faces the first extension portion 121. In this embodiment, when the foldable electronic device 100 is in a flattened state, the first connecting surface 210 faces the first extension portion 121 along the Z-axis. The first connecting surface 210 is fixedly connected to the first extension portion 121. Optionally, the first connecting surface 210 and the first extension portion 121 are bonded together by a first adhesive 401. The first connecting surface 210 can be a plane. The second housing portion 202 includes a second connecting surface 220. The second connecting surface 220 is located on the side of the first non-bending display area 110 away from the light-transmitting main body portion 120 and faces the first non-bending display area 110. In this embodiment, when the foldable electronic device 100 is in a flattened state, the second connecting surface 220 faces the first non-bending display area 110 along the Z-axis. The second connecting surface 220 is flexibly connected to the first non-bending display area 110. Optionally, the second connecting surface 220 and the first non-bending display area 110 are bonded together by a second adhesive 402. The second connecting surface 220 can be planar.

[0081] By including a first connecting surface 210 in the first housing portion 201, and fixing the first connecting surface 210 to the first extension portion 121, the connection area between the first housing portion 201 and the first extension portion 121 can be increased, thereby improving the reliability of the fixed connection between the first housing portion 201 and the first extension portion 121. Similarly, by including a second connecting surface 220 in the second housing portion 202, and flexibly connecting the second connecting surface 220 to the first non-bending display area 110, the connection area between the second housing portion 202 and the first non-bending display area 110 can be increased, thereby improving the reliability of the flexible connection between the second housing portion 202 and the first non-bending display area 110.

[0082] The third housing portion 301 includes a third connecting surface 310. The third connecting surface 310 is located on the side of the second non-bending display area 113 opposite to the bending display area 112 and faces the second extension 122. The third connecting surface 310 is fixedly connected to the second extension 122. Optionally, the third connecting surface 310 and the second extension 122 are bonded together by a third adhesive 403. The third connecting surface 310 can be planar. The fourth housing portion 302 includes a fourth connecting surface 320. The fourth connecting surface 320 is located on the side of the second non-bending display area 113 opposite to the light-transmitting main body portion 120 and faces the second non-bending display area 113. The fourth connecting surface 320 is flexibly connected to the fourth non-bending display area 112. Optionally, the fourth connecting surface 320 and the second non-bending display area 113 are bonded together by a fourth adhesive 404. The fourth connecting surface 320 can be planar.

[0083] By including a third connecting surface 310 in the third housing portion 301, and fixing the third connecting surface 310 to the second extension portion 122, the connection area between the third housing portion 301 and the second extension portion 122 can be increased, thereby improving the reliability of the fixed connection between the third housing portion 301 and the second extension portion 122. Similarly, by including a fourth connecting surface 320 in the fourth housing portion 302, and flexibly connecting the fourth connecting surface 320 to the second non-bending display area 113, the connection area between the fourth housing portion 302 and the second non-bending display area 113 can be increased, thereby improving the reliability of the flexible connection between the fourth housing portion 302 and the second non-bending display area 113.

[0084] The cover layer 102 can be an ultra-thin flexible glass (UFG) layer with unequal thickness. The thickness of the UFG layer in the middle is reduced compared to the thickness on both sides, which can alleviate local stress concentration during the bending process of the flexible display screen 10 and improve its service life. In one possible embodiment, the thickness of the first extension 121 and the second extension 122 can be the same. The light-transmitting main body 120 can include a first sub-light-transmitting main body, a second sub-light-transmitting main body, and a third sub-light-transmitting main body arranged sequentially. The first sub-light-transmitting main body covers the first non-bending display area 110. The second sub-light-transmitting main body covers the bending display area 112. The third sub-light-transmitting main body covers the second non-bending display area 113. The thickness of the first sub-light-transmitting main body and the thickness of the third sub-light-transmitting main body are both greater than the thickness of the second sub-light-transmitting main body. Optionally, the thickness of the first sub-light-transmitting main body and the thickness of the third sub-light-transmitting main body can be the same. The thickness of the first sub-light-transmitting main body portion can be greater than the thickness of the second sub-light-transmitting main body portion, but less than the thickness of the first extension portion 121. The thickness of the third sub-light-transmitting main body portion can be greater than the thickness of the second sub-light-transmitting main body portion, but less than the thickness of the second extension portion 122. Taking the foldable electronic device 100 in a flattened state as an example, the thickness of the first extension portion 121 can be understood as the dimension of the first extension portion 121 along the Z-axis when the foldable electronic device 100 is in a flattened state. The thickness of the light-transmitting main body portion 120 can be understood as the dimension of the light-transmitting main body portion 120 along the Z-axis when the foldable electronic device 100 is in a flattened state.

[0085] Please refer to Figure 18 and Figure 19 , Figure 18 This is a schematic diagram illustrating the misalignment of a flexible screen during bending in a related technical solution with decorative elements. Figure 19This is a schematic diagram illustrating the misalignment of the flexible display screen 10 of the foldable electronic device 100 provided in this application during bending. In related technical solutions, decorative elements can be used to cover the gap between the flexible screen and the housing; however, the flexible screen will still misalign relative to the housing during bending, and the direction of this misalignment is outward. The direction of this misalignment can be referenced... Figure 18 The foldable electronic device 100 provided in this application includes a first extension 121, a light-transmitting main body 120, and a second extension 122 in the cover layer 102 of the flexible display screen 10. The first extension 121 is fixedly connected to the first housing part 201 of the first housing 20, and the second extension 122 is fixedly connected to the third housing part 301 of the second housing 30. This fixes the appearance gap between the flexible display screen 10 and the first housing 20, and between the flexible display screen 10 and the second housing 30, thus facilitating the removal of decorative parts. However, because the first extension 121 is fixedly connected to the first housing part 201, and the second extension 122 is fixedly connected to the third housing part 301, the display function layer 101 of the flexible display screen 10 will shift inwards during bending due to the fixed connection between the cover layer 102 and the first housing 20 and the second housing 30. This inward shift can easily cause the flexible display screen 10 to arch. The direction of the shift of the display function layer 101 can be referred to... Figure 19 The foldable electronic device 100 provided in the above embodiments needs further improvement to solve the technical problem of the flexible display screen 10 arching due to inward misalignment. The following embodiments further describe how to solve the technical problem of the flexible display screen 10 arching.

[0086] like Figure 20 As shown, the foldable electronic device 100 also includes a first support member 501. The first support member 501 is located on the side of the first sub-bent display area 1120 opposite to the light-transmitting main body 120. The first support member 501 is rotatable about a second rotation axis to support the first sub-bent display area 1120 during the rotation of the first housing 20 about a first rotation axis. Optionally, the first support member 501 is bonded to the side of the first sub-bent display area 1120 opposite to the light-transmitting main body 120. The surface of the first support member 501 supporting the first sub-bent display area 1120 can be flat. By providing the first support member 501 to support the first sub-bent display area 1120, the stress on the first sub-bent display area 1120 can be improved, preventing the first sub-bent display area 1120 from denting when used in a flattened state.

[0087] like Figure 21As shown, the foldable electronic device 100 also includes a second support member 502. The second support member 502 is located on the side of the third sub-bent display area 1122 opposite to the light-transmitting main body 120. The second support member 502 is rotatable about a fourth rotation axis to support the third sub-bent display area 1122 during the rotation of the second housing 30 about a third rotation axis. Optionally, the second support member 502 is bonded to the side of the third sub-bent display area 1122 opposite to the light-transmitting main body 120. The surface of the second support member 502 supporting the third sub-bent display area 1122 can be flat. By providing the second support member 502 to support the third sub-bent display area 1122, the stress on the third sub-bent display area 1122 can be improved, preventing the third sub-bent display area 1122 from denting when used in a flattened state.

[0088] Furthermore, by setting the first support member 501 to rotate around the second rotation axis and the second support member 502 to rotate around the fourth rotation axis, the first sub-bending display area 1120 and the third sub-bending display area 1122 can be rotated by the first support member 501 and the second support member 502, respectively. This allows for the design of the motion trajectory of the first sub-bending display area 1120 and the third sub-bending display area 1122 based on the design of the second and fourth rotation axes. This is beneficial for ensuring that the bending display area 112 of the flexible display screen 10 is teardrop-shaped when the foldable electronic device 100 is folded. The teardrop-shaped bending method allows for smaller gaps in the folded state of the foldable electronic device 100 and a flatter surface when the foldable electronic device 100 is unfolded.

[0089] The second rotation axis is located on the side of the display functional layer 101 opposite to the cover layer 102. It can be understood that the rotation center of the first support member 501 is located below the flexible display screen 10. In this embodiment, the second rotation axis can be referred to in the attached diagram. Figure 20 The p-axis. The fourth rotation axis is located on the side of the display functional layer 101 opposite to the cover layer 102. It can be understood that the rotation center of the second support member 502 is located below the flexible display screen 10. In this embodiment, the fourth rotation axis can be referred to in the attached diagram. Figure 21 The q-axis.

[0090] By designing the second rotation axis on the side of the display functional layer 101 away from the cover plate layer 102, the first support member 501 can move away from the flexible display screen 10 during the process of switching the foldable electronic device 100 from a flattened state to a folded state. The movement of the first support member 501 absorbs the misalignment between the first sub-bent display area 1120 and the first housing 20, preventing the first sub-bent display area 1120 from deforming and arching. By designing the fourth rotation axis on the side of the display functional layer 101 away from the cover plate layer 102, the second support member 502 can move away from the flexible display screen 10 during the process of switching the foldable electronic device 100 from a flattened state to a folded state. The movement of the second support member 502 absorbs the misalignment between the third sub-bent display area 1122 and the second housing 30, preventing the third sub-bent display area 1122 from deforming and arching.

[0091] Please refer to Figure 22 and Figure 23 When the foldable electronic device 100 is in a flattened state, the distance between the side of the first support member 501 facing the first sub-bending display area 1120 and the first housing 20 is a first distance. When the foldable electronic device 100 is in a folded state, the distance between the side of the first support member 501 facing the first sub-bending display area 1120 and the first housing 20 is a second distance, and the first distance is less than the second distance. It is understood that during the process of the foldable electronic device 100 bending from a flattened state to a folded state, the side of the first support member 501 facing the first sub-bending display area 1120 gradually moves away from the first housing 20. The first distance can be referred to in the attached diagram. Figure 22 L11 in the diagram. The second distance can be referenced in the appendix. Figure 23 L12 in the middle.

[0092] In the flattened state, the distance between the side of the second support member 502 facing the third sub-bending display area 1122 and the second housing 30 is the third distance. In the folded state, the distance between the side of the second support member 502 facing the third sub-bending display area 1122 and the second housing 30 is the fourth distance, and the third distance is less than the fourth distance. It is understandable that during the process of the foldable electronic device 100 bending from the flattened state to the folded state, the side of the second support member 502 facing the third sub-bending display area 1122 gradually moves away from the second housing 30. The third distance can be referred to in the attached diagram. Figure 22 L13 in the middle. The fourth distance can be referred to in the appendix. Figure 23 L14 in the middle.

[0093] In one possible embodiment, the difference between the second distance and the first distance is 0.3mm to 0.4mm. The difference between the fourth distance and the third distance is 0.3mm to 0.4mm. It is understood that the first support member 501 can absorb a misalignment of 0.3mm to 0.4mm between the first sub-bent display area 1120 and the first housing 20. The second support member 502 can absorb a misalignment of 0.3mm to 0.4mm between the third sub-bent display area 1122 and the second housing 30.

[0094] Further, please refer to Figure 24 and Figure 25 The foldable electronic device 100 also includes a first rotating connector 601. The first rotating connector 601 is fixedly connected to the first housing 20 and rotatably connected to the first support member 501. During the rotation of the first housing 20 around a first rotation axis, the first rotating connector 601 drives the first support member 501 to rotate around a second rotation axis. The fixed connection methods between the first rotating connector 601 and the first housing 20 include, but are not limited to, bonding, welding, threaded connection, and snap-fit ​​connection. By setting the first rotating connector 601, the linkage between the first housing 20 and the first support member 501 can be realized, which can reduce the number of driving components used to drive the first support member 501 to rotate around the second rotation axis in the foldable electronic device 100, thus simplifying the structure of the foldable electronic device 100.

[0095] The foldable electronic device 100 also includes a third rotating connector 603. The third rotating connector 603 is fixedly connected to the second housing 30 and rotatably connected to the second support member 502. During the rotation of the second housing 30 around a third rotation axis, the third rotating connector 603 drives the second support member 502 to rotate around a fourth rotation axis. The fixed connection methods between the third rotating connector 603 and the second housing 30 include, but are not limited to, bonding, welding, threaded connection, and snap-fit ​​connection. By setting the third rotating connector 603, the linkage between the second housing 30 and the second support member 502 can be achieved, reducing the number of driving components in the foldable electronic device 100 used to drive the second support member 502 to rotate around the fourth rotation axis, thus simplifying the structure of the foldable electronic device 100.

[0096] Optional, please refer to Figure 25 and Figure 26One of the first rotating connector 601 and the first support member 501 has an arcuate groove, and the other of the first rotating connector 601 and the first support member 501 has an arcuate block. The first rotating connector 601 and the first support member 501 are rotatably connected through the engagement of the arcuate groove and the arcuate block. One of the third rotating connector 603 and the second support member 502 has an arcuate groove, and the other of the third rotating connector 603 and the second support member 502 has an arcuate block. The third rotating connector 603 and the second support member 502 are rotatably connected through the engagement of the arcuate groove and the arcuate block.

[0097] By having one of the first rotating connector 601 and the first support member 501 have an arc groove, and the other of the first rotating connector 601 and the first support member 501 have an arc block, the first support member 501 and the first rotating connector 601 are rotatably connected through the cooperation between the arc groove and the arc block. Based on the design of the axis of the arc groove and the axis of the arc block, it can be realized that during the rotation of the first housing 20 around the first rotation axis, the first rotating connector 601 drives the first support member 501 to rotate around the second rotation axis. Moreover, the cooperation design of the arc groove and the arc block is simple and easy to implement. By having one of the third rotating connector 603 and the second support member 502 have an arc groove, and the other of the third rotating connector 603 and the second support member 502 have an arc block, the second support member 502 and the third rotating connector 603 are rotatably connected through the cooperation between the arc groove and the arc block. Based on the design of the axis of the arc groove and the axis of the arc block, it is possible to realize that during the rotation of the second housing 30 around the fourth rotation axis, the third rotating connector 603 drives the second support member 502 to rotate around the fourth rotation axis. Moreover, the cooperation design of the arc groove and the arc block is simple and easy to implement.

[0098] In one possible embodiment, the first support member 501 has a first arcuate groove 510, and the first rotating connector 601 has a first arcuate block 610. The first rotating connector 601 and the first support member 501 are rotatably connected through the engagement between the first arcuate groove 510 and the first arcuate block 610. The second support member 502 has a second arcuate groove 520, and the third rotating connector 603 has a second arcuate block 630. The third rotating connector 603 and the second support member 502 are rotatably connected through the engagement between the second arcuate groove 520 and the second arcuate block 630.

[0099] The centerlines of the first arc groove 510, the first arc block 610, and the second rotation axis coincide. The centerlines of the second arc groove 520, the second arc block 630, and the fourth rotation axis coincide. Specifically, the first arc groove 510 includes a first arc surface and a second arc surface arranged opposite each other. The first arc block 610 includes a third arc surface and a fourth arc surface arranged opposite each other. During the bending process of the foldable electronic device 100, the first arc surface moves in contact with the third arc surface. The second arc surface moves in contact with the fourth arc surface. The second arc groove 520 includes a fifth arc surface and a sixth arc surface arranged opposite each other. The second arc block 630 includes a seventh arc surface and an eighth arc surface arranged opposite each other. During the bending process of the foldable electronic device 100, the fifth arc surface moves in contact with the seventh arc surface. The sixth arc surface moves in contact with the eighth arc surface.

[0100] Understandably, by designing the centerline of the first arc groove 510 and the centerline of the first arc block 610, the second rotation axis can be located on the side of the display functional layer 101 away from the cover plate layer 102, allowing the first support member 501 to absorb the misalignment between the first sub-bent display area 1120 and the first housing 20, thus preventing the flexible display screen 10 from arching. By designing the centerline of the second arc groove 520 and the centerline of the second arc block 630, the fourth rotation axis can be located on the side of the display functional layer 101 away from the cover plate layer 102, allowing the second support member 502 to absorb the misalignment between the second sub-bent display area 1121 and the first housing 20, thus preventing the flexible display screen 10 from arching.

[0101] Optionally, the first support member 501 and the first sub-bent display area 1120 are bonded together using an adhesive dispensing process. This adhesive dispensing process improves the bond strength between the first support member 501 and the first sub-bent display area 1120, reduces adhesive pulling between them, and thus reduces misalignment between them, improving the reliability of the first support member 501 in absorbing misalignment between the first sub-bent display area 1120 and the first housing 20. The second support member 502 and the third sub-bent display area 1122 are also bonded together using an adhesive dispensing process. The second support member 502 and the third sub-bending display area 1122 are bonded together by an adhesive dispensing process, which can improve the bonding strength between the second support member 502 and the third sub-bending display area 1122, reduce the adhesive pulling between the first support member 501 and the first sub-bending display area 1120, thereby reducing the misalignment between the second support member 502 and the third sub-bending display area 1122, and improving the reliability of the second support member 502 in absorbing the misalignment between the third sub-bending display area 1122 and the second housing 30.

[0102] Further, please refer to Figure 27 and Figure 28 The foldable electronic device 100 also includes a pivot base 70 and a second rotating connector 602. The pivot base 70 is located on the side of the bent display area 112 opposite to the light-transmitting main body 120. The second rotating connector 602 is located between the pivot base 70 and the first housing 20. The second rotating connector 602 is fixedly connected to the first housing 20 and rotatably connected to the pivot base 70. The fixed connection between the second rotating connector 602 and the first housing 20 includes, but is not limited to, bonding, welding, threaded connection, and snap-fit ​​connection. The rotatable connection between the second rotating connector 602 and the pivot base 70 includes, but is not limited to, the fit between the pivot and the shaft hole, bearing connection, and the fit between the arc groove and the arc block.

[0103] The foldable electronic device 100 also includes a fourth rotating connector 604. The fourth rotating connector 604 is located between the pivot base 70 and the second housing 30. The fourth rotating connector 604 is fixedly connected to the second housing 30 and rotatably connected to the pivot base 70. The fixed connection methods between the fourth rotating connector 604 and the second housing 30 include, but are not limited to, bonding, welding, threaded connection, and snap-fit ​​connection. The rotatable connection methods between the fourth rotating connector 604 and the pivot base 70 include, but are not limited to, the fit between the pivot and the shaft hole, bearing connection, and the fit between the arc groove and the arc block.

[0104] One of the second rotating connector 602 and the first support member 501 has a limiting groove, and the other of the second rotating connector 602 and the first support member 501 has a limiting block. The limiting block cooperates with the limiting groove to restrict the relative movement between the first support member 501 and the first housing 20. One of the fourth rotating connector 604 and the second support member 502 has a limiting groove, and the other of the fourth rotating connector 604 and the second support member 502 has a limiting block. The limiting block cooperates with the limiting groove to restrict the relative movement between the fourth support member and the second housing 30.

[0105] In one possible embodiment, please refer to Figure 26 and Figure 28The second rotating connector 602 has a first limiting block 620. The first support member 501 has a first limiting groove 511. The first limiting block 620 cooperates with the first limiting groove 511 to restrict the relative movement between the first support member 501 and the first housing 20. Specifically, when the foldable electronic device 100 is in a flattened state, the first limiting block 620 abuts against one end of the first limiting groove 511; when the foldable electronic device 100 is in a flattened state, the first limiting block 620 abuts against the other end of the first limiting groove 511. The first limiting block 620 can be an arc-shaped limiting block. The first limiting groove 511 can be an arc-shaped limiting groove. The fourth rotating connector 604 has a second limiting block 640. The second support member 502 has a second limiting groove 521. The second limiting block 640 cooperates with the second limiting groove 521 to restrict the relative movement between the second support member 502 and the second housing 30. Specifically, when the foldable electronic device 100 is in a flattened state, the second limiting block 640 abuts against one end of the second limiting groove 521; when the foldable electronic device 100 is in a flattened state, the second limiting block 640 abuts against the other end of the second limiting groove 521. The second limiting block 640 can be an arc-shaped limiting block. The second limiting groove 521 can be an arc-shaped limiting groove.

[0106] Since the second rotating connector 602 is fixedly connected to the first housing 20, by having a limiting groove in one of the second rotating connector 602 and the first support member 501, and a limiting block in the other of the second rotating connector 602 and the first support member 501, the relative movement between the first support member 501 and the first housing 20 can be restricted, thereby guiding the movement of the first support member 501 during the bending process of the foldable electronic device 100. In addition, the relative position of the first support member 501 and the first housing 20 can be restricted in the flattened and folded states of the foldable electronic device 100, so that the first support member 501 and the first housing 20 can better support the flexible display screen 10 in the flattened state, and can accurately measure the amount of movement of the first support member 501 relative to the first housing 20, avoiding insufficient absorption of the misalignment between the first sub-bending display area 1120 and the first housing 20 or excessive stretching of the first sub-bending display area 1120 by the first support member 501. Similarly, since the fourth rotating connector 604 is fixedly connected to the first housing 20, by having a limiting groove in one of the fourth rotating connector 604 and the second support member 502, and a limiting block in the other of the fourth rotating connector 604 and the second support member 502, the relative movement between the second support member 502 and the second housing 30 can be restricted, thereby guiding the movement of the second support member 502 during the bending process of the foldable electronic device 100. In addition, the relative position of the second support member 502 and the second housing 30 can also be restricted in the flattened and folded states of the foldable electronic device 100, so that the second support member 502 and the second housing 30 can better support the flexible display screen 10 in the flattened state, and can accurately measure the amount of movement of the second support member 502 relative to the second housing 30, avoiding insufficient absorption of the misalignment between the third sub-bending display area 1122 and the second housing 30 by the second support member 502 or excessive stretching of the third sub-bending display area 1122.

[0107] The features mentioned above in the specification, claims, and drawings can be arbitrarily combined with each other, provided they are meaningful within the scope of this application. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. A foldable electronic device, characterized in that, include: A flexible display screen includes a display functional layer and a cover layer. The display functional layer includes a first non-bending display area, a bending display area, and a second non-bending display area arranged sequentially. The cover layer includes a light-transmitting main body and a first extension. The light-transmitting main body covers the display side of the first non-bending display area, the bending display area, and the second non-bending display area. The first extension extends out from the side of the first non-bending display area away from the bending display area. and A first housing includes a first housing portion and a second housing portion that are bent and connected together. At least a portion of the first housing portion is located on the side of the first extension portion away from the light-transmitting main body portion, and at least a portion of the second housing portion is located on the side of the first non-bending display area away from the light-transmitting main body portion. The first housing portion is fixedly connected to the first extension portion, and the second housing portion is flexibly connected to the first non-bending display area. The first housing is capable of rotating about a first rotation axis to drive the flexible display screen to bend.

2. The foldable electronic device according to claim 1, characterized in that, The first housing portion is bonded to the first extension portion, and the second housing portion is bonded to the first non-bending display area. The bonding strength between the first housing portion and the first extension portion is higher than the bonding strength between the second housing portion and the first non-bending display area.

3. The foldable electronic device according to claim 2, characterized in that, The first housing portion is bonded to the first extension portion by a first adhesive, and the second housing portion is bonded to the first non-bending display area by a second adhesive. The tensile modulus of the first adhesive is higher than that of the second adhesive.

4. The foldable electronic device according to claim 2, characterized in that, The first housing portion and the first extension portion are bonded together by an adhesive dispensing process, and the second housing portion and the first non-bending display area are bonded together by an adhesive bonding process.

5. The foldable electronic device according to claim 1, characterized in that, There is a gap between the first housing portion and the side of the first non-bending display area that is away from the bending display area. When the foldable electronic device is in a flattened state, the gap is a first gap, and when the foldable electronic device is in a folded state, the gap is a second gap. The size of the first gap is smaller than the size of the second gap.

6. The foldable electronic device according to claim 1, characterized in that, When the foldable electronic device is in a flattened state, the first extension portion extends 1.5 mm to 2 mm relative to the first non-bending display area.

7. The foldable electronic device according to claim 1, characterized in that, The first housing portion includes a first connecting surface, which is located on the side of the first non-bending display area away from the bending display area and facing the first extension portion. The first connecting surface is fixedly connected to the first extension portion. The second housing portion includes a second connecting surface, which is located on the side of the first non-bending display area away from the light-transmitting main body and facing the first non-bending display area. The second connecting surface is flexibly connected to the first non-bending display area.

8. The foldable electronic device according to claim 1, characterized in that, The light-transmitting main body includes a first sub-light-transmitting main body, a second sub-light-transmitting main body, and a third sub-light-transmitting main body arranged in sequence. The thickness of the first sub-light-transmitting main body and the thickness of the third sub-light-transmitting main body are both greater than the thickness of the second sub-light-transmitting main body.

9. The foldable electronic device according to any one of claims 1 to 8, characterized in that, The foldable display area includes a first sub-foldable display area, a second sub-foldable display area, and a third sub-foldable display area arranged sequentially. The first sub-foldable display area is adjacent to the first non-foldable display area, and the third sub-foldable display area is adjacent to the second non-foldable display area. The foldable electronic device also includes a first support member located on the side of the first sub-foldable display area away from the light-transmitting main body. The first support member is rotatable about a second rotation axis to support the first sub-foldable display area during the rotation of the first housing about the first rotation axis. The second rotation axis is located on the side of the display functional layer away from the cover plate layer.

10. The foldable electronic device according to claim 9, characterized in that, When the foldable electronic device is in a flattened state, the distance between the first support member on the side facing the first sub-bent display area and the first housing is a first distance. When the foldable electronic device is in a folded state, the distance between the first support member on the side facing the first sub-bent display area and the first housing is a second distance. The first distance is less than the second distance.

11. The foldable electronic device according to claim 10, characterized in that, The difference between the second distance and the first distance is 0.3mm to 0.4mm.

12. The foldable electronic device according to claim 9, characterized in that, The foldable electronic device further includes a first rotating connector, which is fixedly connected to the first housing and rotatably connected to the first support member. During the rotation of the first housing around the first rotation axis, the first rotating connector drives the first support member to rotate around the second rotation axis.

13. The foldable electronic device according to claim 12, characterized in that, One of the first rotating connector and the first support has an arc groove, and the other of the first rotating connector and the first support has an arc block. The first rotating connector and the first support are rotatably connected by the engagement between the arc groove and the arc block. The centerline of the arc groove, the centerline of the arc block and the second rotation axis coincide.

14. The foldable electronic device according to claim 9, characterized in that, The foldable electronic device further includes a pivot base and a second rotating connector. The pivot base is located on the side of the bent display area away from the light-transmitting main body. The second rotating connector is located between the pivot base and the first housing. The second rotating connector is fixedly connected to the first housing and rotatably connected to the pivot base. One of the second rotating connector and the first support member has a limiting groove, and the other of the second rotating connector and the first support member has a limiting block. The limiting block cooperates with the limiting groove to restrict the relative movement between the first support member and the first housing.

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