Display assembly and foldable electronic device

Abstract

The application relates to a display assembly and a foldable electronic device, the display assembly comprising: a flexible screen; a protection component connected with the flexible screen along a first direction; wherein the bending area of the protection component comprises a first area and a second area, and along a second direction, the second area is located on both sides of the first area; when the display assembly is bent, along the second direction, the average deformation amount of the first area is less than that of the second area. The bending area of the protection component forms a screen containing space for accommodating the folded part of the flexible screen when the display assembly is in a folded state. Under the same external force, the deformation amount of the first area is less than that of the second area, thereby reducing the risk that the radius of the screen containing space formed in the folding process is too small due to the excessive deformation amount of the first area, and further reducing the extrusion of the protection component on the flexible screen, reducing the risk of layering, cracking and the like of the flexible screen, and improving the service life and reliability of the display assembly.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, and more particularly to a display component and a foldable electronic device. Background Technology

[0002] The foldable electronic device includes a housing, a folding mechanism, and a flexible screen. The housing comprises a left housing and a right housing, with the folding mechanism located between them. The flexible screen is mounted on both housings. When the left and right housings are folded by the folding mechanism, the bending area of ​​the flexible screen folds, placing the electronic device in a folded state. In this folded state, the electronic device is smaller and easier to store. When the left and right housings are unfolded by the folding mechanism, the bending area of ​​the flexible screen unfolds, placing the electronic device in an unfolded state. In this unfolded state, the electronic device has a larger display screen, improving the user experience. In this foldable electronic device, the reliability and lifespan of the flexible screen affect the overall performance and lifespan of the electronic device.

[0003] The back of the flexible screen typically has a protective component to protect it. When the electronic device is folded, the bending area of ​​the protective component bends to form a space to accommodate the flexible screen. When the bending stiffness of the protective component's bending area is too large, the deformation of the protective component during bending is too small, resulting in a small radius of the space after bending. This cannot provide sufficient space for the flexible screen, and at the folding point, it can cause pulling or squeezing of the flexible screen, leading to creases or even breakage. Summary of the Invention

[0004] This application provides a display component and a foldable electronic device, which can reduce the risk of screen delamination and breakage in the bending area.

[0005] This application provides a display component for a foldable electronic device. The display component includes: a flexible screen; and a protective component connected to the flexible screen along a first direction. The protective component has a bending region including a first region and a second region, with the second region located on either side of the first region along a second direction. When the display component is bent, the average deformation of the first region along the second direction is less than the average deformation of the second region. Under the same external force, the deformation of the first region is less than that of the second region, thereby reducing the risk of the radius of the screen-enclosing space being too small due to excessive deformation of the first region during folding. This increases the bending radius of the bent region after deformation, further reducing the pressure of the protective component on the flexible screen, reducing the risk of delamination and breakage of the flexible screen, and improving the service life and reliability of the display component.

[0006] In one possible design, when the display component is bent, the bending stiffness of the first region is greater than that of the second region. Specifically, the bending stiffness of the protective component refers to the bending stiffness along the second direction, and this stiffness is directly proportional to the radius of the protective component after bending. Furthermore, the deformation of the protective component during bending has an inverse relationship with the bending stiffness; that is, under the same bending moment, for the same material, the greater the deformation, the smaller the bending stiffness. Since the first region of the bending area of ​​the protective component has the greatest deformation when the display component is folded, when the bending stiffness of the first region along the second direction is greater than that of the second region, under the same external force, the deformation of the first region is less than that of the second region. This reduces the risk of the radius of the screen-enclosing space being too small due to excessive deformation of the first region during folding, increases the bending radius after deformation of the bending area, and further reduces the risk of delamination and breakage of the flexible screen under the squeezing action of the protective component, thereby improving the service life and reliability of the display component.

[0007] In one possible design, the bending area is provided with multiple recesses along a first direction, and these recesses are spaced apart along a second and a third direction. The recesses reduce the cross-sectional area of ​​the protective component subjected to stress during bending, thereby reducing the bending stiffness of the bending area. This allows the bending area of ​​the protective component to undergo greater deformation during folding, forming a space to accommodate the folded portion of the flexible screen. This facilitates the folding of the electronic device, and the recesses also reduce the pressure exerted by the protective component on the folded portion of the flexible screen, lowering the risk of delamination and breakage of the flexible screen.

[0008] In one possible design, in the plane containing the third and second directions, the area of ​​the first region is S1, and the total area of ​​the recesses located in the first region is S2, where 1 / 4 ≤ S2 / S1 ≤ 2 / 3. If S2 / S1 is too small, the area of ​​the recesses in the first region is too small, resulting in high bending stiffness in the first region. This leads to a small deformation of the first region after bending when the display component is folded, and the protective component cannot provide sufficient space for the flexible screen, posing a risk of squeezing the folded portion of the flexible screen. If S2 / S1 is too large, the area of ​​the recesses in the first region is too large, reducing the strength of the protective component and making it prone to breakage during folding, thus reducing the lifespan of the display component.

[0009] In one possible design, in the plane containing the third and second directions, the area of ​​the second region is S3, and the total area of ​​the recesses located in the second region is S4, where 1 / 3 ≤ S4 / S3 ≤ 2 / 3. If S4 / S3 is too small, the area of ​​the recesses in the second region is too small, resulting in high bending stiffness in the second region. This leads to a small deformation of the second region after bending when the display component is folded, and the protective component cannot provide sufficient space for the flexible screen, posing a risk of squeezing the folded portion of the flexible screen. If S4 / S3 is too large, the area of ​​the recesses in the second region is too large, reducing the strength of the protective component and making it prone to breakage during folding, thus reducing the lifespan of the display component.

[0010] In one possible design, on the plane containing the third and second directions, the total area of ​​the recessed portion in the first region is S2, and the total area of ​​the recessed portion in the second region is S4, where 3 / 4 ≤ S2 / S4 < 1. If S2 / S4 is too large, the total area of ​​the recessed portion in the first region is greater than that in the second region, resulting in a lower bending stiffness in the first region. This causes the bending shape of the bending area to tend towards an elliptical shape, and the bending radius of the first region is too small, posing a risk of squeezing the folded portion of the flexible screen. If S2 / S4 is too small, the total area of ​​the recessed portion in the first region is less than that in the second region, and the difference in their total areas is large. This results in a much greater bending stiffness in the first region than in the second region, leading to insufficient deformation in the first region during bending, also posing a risk of squeezing the folded portion of the flexible screen. Therefore, when 3 / 4 ≤ S2 / S4 < 1, the risk of the protective component squeezing the flexible screen during bending can be effectively reduced. In one possible design, when the length and width of the recess in the first region are the same as those in the second region, the depth t1 of the recess in the first region is less than the depth t2 of the recess in the second region. The smaller the depth of the recess, the greater the thickness of its bottom wall, and the more capable the bottom wall is of withstanding the stress during bending of the protective component. Therefore, the greater the thickness of the bottom wall, the larger the cross-sectional area of ​​the protective component that bears the stress, the greater the bending stiffness of the protective component in the corresponding region, and the smaller the deformation during bending. When t1 < t2, the bending stiffness of the first region of the protective component is greater than that of the second region.

[0011] In one possible design, the recess in the first region is a groove, and the recess in the second region is a through hole penetrating the protective component along a first direction. In this case, the depth of the recess reaches its maximum, further reducing the bending stiffness of the second region compared to the first region. This results in a larger difference between the bending stiffness of the first and second regions. During the folding process of the display component, this ensures that the protective component has a large degree of deformation during bending, thus forming sufficient space for the screen, while also making the bending shape of the bending area tend towards a circle, reducing the pressure of the bending area on the folded portion of the flexible screen.

[0012] In one possible design, adjacent recesses in the first region are separated by a first distance A1 along a second direction, and adjacent recesses in the second region are separated by a second distance A2 along the second direction, where A1 > A2. Along the second direction, the greater the distance between adjacent recesses, the larger the interval between recesses in that region, meaning there is more material without recesses in that region. Since the areas without recesses are mainly used to bear the stress during the bending process of the protective component, the more material without recesses, the larger the cross-sectional area of ​​the areas without recesses, and the greater the bending stiffness of the protective component in the corresponding areas. Because A1 > A2, the bending stiffness of the first region is greater than that of the second region.

[0013] In one possible design, 1 < A1 / A2 ≤ 1.5. If A1 / A2 is too small, the bending stiffness of the first region is less than that of the second region, causing the bending shape of the bending area to tend towards an elliptical shape. The bending radius of the first region is too small, posing a risk of squeezing the folded part of the flexible screen. If A1 / A2 is too large, the difference in bending stiffness between the first and second regions is large, resulting in insufficient deformation of the first region during bending, also posing a risk of squeezing the folded part of the flexible screen. Therefore, when 1 < A1 / A2 ≤ 1.5, while allowing for a larger deformation in the first region, the bending radius of the first region after bending can be increased, thereby reducing the squeezing of the folded part of the flexible screen by the bending area of ​​the protective component.

[0014] In one possible design, the dimension of the recess in the first region along the second direction is B1, and the dimension of the recess in the second region along the second direction is B2, where B1 < B2. Along the second direction, the larger the width of the recess, the less material is in that region without recesses. Since the region without recesses primarily bears the stress during the bending process of the protective component, less material results in a smaller cross-sectional area and lower bending stiffness of the protective component in that region. Because B1 < B2, the bending stiffness of the first region is greater than that of the second region.

[0015] In one possible design, 1 < B2 / B1 ≤ 1.5. If B2 / B1 is too small, the bending stiffness of the first region is less than that of the second region, causing the bending shape of the bending area to tend towards an elliptical shape. The bending radius of the first region is too small, posing a risk of squeezing the folded part of the flexible screen. If B2 / B1 is too large, the difference in bending stiffness between the first and second regions is large, resulting in insufficient deformation of the first region during bending, also posing a risk of squeezing the folded part of the flexible screen. Therefore, when 1 < B2 / B1 ≤ 1.5, while allowing for a larger deformation in the first region, the bending radius of the first region after bending can be increased, thereby reducing the squeezing of the folded part of the flexible screen by the bending area of ​​the protective component.

[0016] In one possible design, the dimension of the recess in the first region along the third direction is C1, and the dimension of the recess in the second region along the third direction is C2, where C1 < C2. Along the third direction, the larger the length of the recess, the less material is left in that region without recesses, and the smaller the bending stiffness of the protective component in that region. Because C1 < C2, the bending stiffness of the first region is greater than that of the second region.

[0017] In one possible design, 1 < C2 / C1 ≤ 1.5. When the value of C2 / C1 is too small, the bending stiffness of the second region will be greater than that of the first region, causing the bending shape of the bending area to tend to be elliptical. The bending radius of the first region is too small, posing a risk of squeezing the folded part of the flexible screen. When the value of C2 / C1 is too large, the difference in bending stiffness between the second and first regions is large, resulting in insufficient deformation of the first region during bending, also posing a risk of squeezing the folded part of the flexible screen. Therefore, when 1 < C2 / C1 ≤ 1.5, while allowing for a larger deformation in the first region, it is possible to increase the bending radius of the first region after bending, thereby reducing the squeezing of the folded part of the flexible screen by the bending area of ​​the protective component.

[0018] In one possible design, adjacent recesses in the first region are separated by a third distance A3 along a third direction, and adjacent recesses in the second region are separated by a fourth distance A4 along a third direction, where A3 > A4. The greater the distance between adjacent recesses along the third direction, the more material is left without recesses in that region, and the greater the bending stiffness of the protective component in the corresponding region. Because A3 > A4, the bending stiffness of the first region is greater than that of the second region.

[0019] In one possible design, 1 < A3 / A4 ≤ 1.5. If A3 / A4 is too small, the bending stiffness of the first region is less than that of the second region, causing the bending shape of the bending area to tend towards an elliptical shape. The bending radius of the first region is too small, posing a risk of squeezing the folded part of the flexible screen. If A3 / A4 is too large, the difference in bending stiffness between the first and second regions is large, resulting in insufficient deformation of the first region during bending, also posing a risk of squeezing the folded part of the flexible screen. Therefore, when 1 < A3 / A4 ≤ 1.5, while allowing for a larger deformation in the first region, the bending radius of the first region after bending can be increased, thereby reducing the squeezing of the folded part of the flexible screen by the bending area of ​​the protective component.

[0020] In one possible design, the second region includes at least a first layer and a second layer stacked together along the first direction. The first region includes a third layer, and the thickness of the third layer is the same as the sum of the thicknesses of the first layer and the second layer. The elastic modulus of the materials of the first layer and the third layer is greater than the elastic modulus of the material of the second layer. That is, the overall elastic modulus of the first region is greater than the overall elastic modulus of the second region. With the same cross-sectional area, a larger elastic modulus results in greater bending stiffness and less deformation. Therefore, the bending stiffness of the first region is greater than that of the second region, thereby reducing the risk that the radius of the resulting screen space will be too small due to excessive deformation during folding.

[0021] In one possible design, the width of the first region is D1, and the width of the bending area of ​​the protective component is D2, where 1 / 2 ≤ D1 / D2 ≤ 2 / 3. When the value of D1 / D2 is too large, the size of the first region along the second direction is too large, and the bending stiffness of the first region is greater than that of the second region. That is, the area with higher bending stiffness accounts for too large a proportion in the bending area, resulting in too small an overall deformation of the bending area during folding. Consequently, the bending area cannot provide sufficient space for the folded part of the flexible screen, increasing the difficulty of bending the display component. When the value of D1 / D2 is too small, the size of the first region along the second direction is too small, and the bending stiffness of the first region is greater than that of the second region. That is, the area with higher bending stiffness accounts for too small a proportion in the bending area, resulting in the first region being unable to provide effective support during folding. Consequently, the bending radius of the bending area cannot be effectively increased, causing compression to the flexible screen.

[0022] In one possible design, along the first direction, at least a portion of the thickness of the second region is less than the thickness of the first region, i.e., the second region has a thinned area. Due to the thinned area, the material in the second region used to withstand the stress during the bending process of the protective component is less than that in the first region, thereby achieving a bending stiffness in the second region that is less than that in the first region.

[0023] A second aspect of this application provides a foldable electronic device, comprising: a housing; and a display component, wherein the display component is any of the display components described above; wherein the display component is mounted on the housing. The housing includes a first housing and a second housing. In the unfolded state, the first housing and the second housing are substantially on the same plane, making the flexible screen substantially planar. At this time, the flexible screen is exposed, allowing the user to operate it and display images or videos, thus achieving a large-screen display and improving the user's viewing experience. In the folded state, the flexible screen is located within the space enclosed by the folded first housing and the second housing. At this time, the flexible screen is not exposed, and the user cannot operate it, making the electronic device easy to store and carry.

[0024] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0025] Figure 1 This is a partial structural diagram of a foldable electronic device in the prior art;

[0026] Figure 2 for Figure 1 A schematic diagram of the display components in the expanded state;

[0027] Figure 3 for Figure 2 The effect of the display component being stretched in the expanded state;

[0028] Figure 4 for Figure 2 A schematic diagram of the display component in a bent state;

[0029] Figure 5 This is a schematic diagram of the structure of the display component provided in this application in a specific embodiment, wherein the display component is in an unfolded state;

[0030] Figure 6 for Figure 5 A bottom view;

[0031] Figure 7 for Figure 5 A schematic diagram of the bending area of ​​the central protective component;

[0032] Figure 8 for Figure 5 A schematic diagram of the display component in a bent state;

[0033] Figure 9 This is a schematic diagram of the structure of the display component provided in this application in a second specific embodiment, wherein the display component is in an unfolded state;

[0034] Figure 10 for Figure 9 A bottom view;

[0035] Figure 11 for Figure 9 A schematic diagram of the bending area of ​​the central protective component;

[0036] Figure 12 for Figure 9 A schematic diagram of the display component in a bent state;

[0037] Figure 13 This is a schematic diagram of the structure of the display component provided in this application in a third specific embodiment, wherein the display component is in an unfolded state;

[0038] Figure 14 for Figure 13 A bottom view;

[0039] Figure 15 for Figure 13 A schematic diagram of the bending area of ​​the central protective component;

[0040] Figure 16 The diagrams show the structure of the display component provided in the fourth and fifth specific embodiments of this application, wherein the display component is in an unfolded state.

[0041] Figure 17 for Figure 16 A schematic diagram of the structure of the bending area of ​​the display component;

[0042] Figure 18 This is a schematic diagram of the structure of the display component provided in this application in a sixth specific embodiment, wherein the display component is in an unfolded state;

[0043] Figure 19 This is a schematic diagram of the structure of the display component provided in the seventh specific embodiment of the present application, wherein the display component is in an unfolded state;

[0044] Figure 20 for Figure 19 A bottom view;

[0045] Figure 21 This is a schematic diagram of the display component provided in this application in a bent state, wherein the display component is in the shape of a ball and rod;

[0046] Figure 22 This is a partial enlarged view of the first region of the display component provided in this application in its unfolded state, wherein the recessed portion on the protective component has rounded ends;

[0047] Figure 23 This is a partial enlarged view of the first region of the display component provided in this application in its unfolded state, wherein the recess on the protective component has an irregular shape.

[0048] Figure label:

[0049] 1a - Protective components;

[0050] 11a - Recessed portion;

[0051] 12a - First Region;

[0052] 13a - Drive components;

[0053] 14a - Mounting components;

[0054] 15a - Circuit board;

[0055] 2a - Flexible screen;

[0056] 1- Protective components;

[0057] 11-Depression;

[0058] 111 - Through hole;

[0059] 112 - Groove;

[0060] 12-First Zone;

[0061] 13-Second Region;

[0062] 14-Outer zone;

[0063] 15 - First Floor;

[0064] 16 - Second layer;

[0065] 17 - Third Floor;

[0066] 18-Thinning zone;

[0067] 2- Flexible screen;

[0068] 21-Part One;

[0069] 22 - Part Two;

[0070] 23-Folded section;

[0071] 231 - First fold section;

[0072] 232 - Second fold section.

[0073] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0074] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0075] like Figure 1 As shown, Figure 1 This is a partial structural diagram of a foldable electronic device, which includes a display component, a driver IC 13a, a mounting component 14a, a circuit board 15a, etc. The display component includes a foldable flexible screen 2a and a protective component 1a for protecting the flexible screen 2a. The mounting component 14a can mount the flexible screen 2a onto the protective component 1a through chip-on-plastic (COP) or other packaging methods. The driver IC 13a is electrically connected to the circuit board 15a and the flexible screen 2a to drive the display of the flexible screen 2a. The circuit board 15a can be a flexible printed circuit board (FPC).

[0076] in, Figure 1 The structure of the display components in the expanded state is as follows: Figure 2 As shown, during the folding process of the foldable electronic device, both the protective component 1a and the flexible screen 2a are folded. After the bending area of ​​the protective component 1a is folded, it forms a screen-accommodating space for the folding area of ​​the flexible screen 2a. In order to increase the deformation of the bending area of ​​the protective component 1a to increase the screen-accommodating space, a recessed portion 11a is usually etched in the bending area of ​​the protective component 1a to reduce the bending stiffness of the bending area. This causes the protective component 1a to undergo greater deformation during the bending process, thereby increasing the screen-accommodating space to a certain extent and reducing the pulling and squeezing of the flexible screen 2a by the bending area of ​​the protective component 1a.

[0077] like Figure 3 As shown, Figure 3 for Figure 1 The diagram shows the effect of stretching the display component in the unfolded state. When the protective component 1a is stretched along the width direction, the recessed part 11a deforms and its volume increases. Correspondingly, when the protective component 1a is bent, the volume of the recessed part 11a also increases, providing a space for the flexible screen 2a to be bent, and reducing the pulling and squeezing of the flexible screen 2a by the bending area of ​​the protective component 1a.

[0078] The bending areas of the flexible screen 2a and the protective component 1a are usually bent into arc-shaped structures. The smaller the radius of the arc-shaped structure formed after the bending area of ​​the protective component 1a is bent, the smaller the screen space and the greater the compression on the flexible screen 2a. Therefore, in order to reduce the compression of the flexible screen 2a by the protective component 1a, the radius of the arc-shaped structure after the bending of the protective component 1a should be larger.

[0079] like Figure 4 As shown, Figure 4 for Figure 1The diagram illustrates the structure of the display component in a bent state. The dashed line shows the ideal state of the first region 12a of the bending area of ​​the protective component 1a during the bending process. The first region 12a of the bending area of ​​the protective component 1a has the largest deformation when folded. When the deformation of the first region 12a is too large (excessive bending), the radius of the resulting arc-shaped structure is too small. That is, the actual radius of the first region 12a after bending is smaller than the ideal radius shown by the dashed line. The shape after bending is often elliptical (different from the arc-shaped shape after bending in the ideal state), resulting in excessive compression of the flexible screen 2a. The flexible screen 2a is at risk of delamination and breakage.

[0080] To address this technical problem, embodiments of this application provide a foldable electronic device, including, for example, mobile phones, tablets, personal digital assistants (PDAs), laptops, in-vehicle computers, foldable display devices, foldable displays, wearable devices, and any other device with a foldable screen function. This application does not impose any special limitations on the specific form of the aforementioned foldable electronic device. For ease of explanation, the following description uses a mobile phone as an example of a foldable electronic device. Specific embodiments of the foldable electronic device of this application will be used to describe this application.

[0081] The foldable electronic device includes a folding device, a first housing, a second housing, and a display component. The display component includes a flexible screen for displaying images, videos, etc. The specific type of flexible screen in this application is not limited. For example, the flexible screen can be an active-matrix organic light-emitting diode (AMOLED) display. As a self-emissive display, AMOLED does not require a backlight module (BLM). Therefore, when the substrate of the AMOLED display is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display can have bendable characteristics. For example, the flexible screen 2 can also be an organic light-emitting diode (OLED) display, a mini organic light-emitting diode (MLED) display, a micro organic light-emitting diode (MOLED) display, a quantum dot light-emitting diode (QLED) display, etc.

[0082] The first housing (not shown in the figure) and the second housing (not shown in the figure) are spaced apart. The first and second housings can also be the mid-frame structure of a foldable electronic device. These housings house components such as batteries, circuit boards, cameras, headphones, earpieces, buttons, and more. They also support a flexible screen, which is fixedly connected (e.g., glued) to the first and second housings to maintain its flatness during use and protect its non-display surfaces. A folding device (not shown in the figure) is located between the first and second housings and connected to them.

[0083] During the use of foldable electronic devices, the display component includes at least: Figure 6 The unfolded state shown and Figure 8In the folded state shown, in the unfolded state, the first and second housings are approximately on the same plane, making the flexible screen 2 approximately planar. At this time, the flexible screen 2 is exposed, allowing the user to operate it and display images or videos, achieving a large-screen display and improving the user's viewing experience. Furthermore, when the display component is in the unfolded state, the first and second housings can rotate towards each other (i.e., relative rotation where the first and second housings move closer together), thereby causing the display component to fold, making the display component... Figure 8 The folded state shown is illustrated, and the display component in this embodiment is a flexible screen 2 with an inward folding structure. In this folded state, the flexible screen 2 is located within the space enclosed by the folded first and second housings. At this time, the flexible screen 2 is not exposed, and the user cannot operate the flexible screen 2, making the electronic device easy to store and carry. Furthermore, when the display component is in the folded state, the first and second housings can rotate (in the opposite direction to the rotation direction during folding), thereby allowing the display component to be in a folded state. Figure 6 The unfolded state shown.

[0084] like Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the display component provided in this embodiment. The flexible screen 2 may include a first part 21, a second part 22, and a folding part 23 located between the two. The first part 21 corresponds to and is connected to the first housing, the second part 22 corresponds to and is connected to the second housing, and the folding part 23 corresponds to the folding device. During the folding process of the folding device, the folding part 23 is folded to form a shape as shown in the diagram. Figure 8 The folded portion 23 of the flexible screen 2 shown is illustrated. In this embodiment, the first direction Z is the thickness direction of the protective component 1, the second direction X is the width direction of the protective component 1, and the third direction Y is the length direction of the protective component 1, as an example.

[0085] like Figure 5 As shown, the display assembly also includes a protective component 1, which is located on the side of the flexible screen 2 away from the display surface and is used to protect the flexible screen 2. When the display assembly is bent, both the protective component 1 and the flexible screen 2 are bent, and the bending area of ​​the protective component 1 corresponds to the folded portion 23 of the flexible screen 2. After the bending area of ​​the protective component 1 is bent, it forms a screen-accommodating space for accommodating the folded portion 23 of the flexible screen 2.

[0086] like Figure 6 As shown, Figure 6 for Figure 5From a bottom view, the bending area of ​​the protective component 1 includes a first region 12 and a second region 13. Along the second direction X, the second region 13 is located on both sides of the first region 12. When the display component is bent, the average deformation of the first region 12 along the second direction X is less than the average deformation of the second region 13. The average deformation of the first region 12 in this embodiment is defined as: the deformation per unit length of the first region 12 along the second direction X of the protective component 1 after the display component is bent; the average deformation of the second region 13 in this embodiment is defined as: the deformation per unit length of the second region 13 along the second direction X of the protective component 1 after the display component is bent.

[0087] In this embodiment, the bending area of ​​the protective component 1 forms a screen-accommodating space for accommodating the folded portion 23 of the flexible screen 2 when the display component is in a folded state. Under the same external force, the average deformation of the first region 12 is less than the average deformation of the second region 13, thereby reducing the risk that the radius of the screen-accommodating space formed by the first region 12 is too small due to the excessive average deformation during the folding process. This increases the bending radius after the bending area is deformed, thereby reducing the risk of the flexible screen 2 delamination and breakage under the squeezing action of the protective component 1, and improving the service life and reliability of the display component.

[0088] In one specific embodiment, when the display component bends, the bending stiffness of the first region 12 is greater than that of the second region 13. Specifically, the bending stiffness referred to herein is the bending stiffness along the second direction X, and the bending stiffness is directly proportional to the radius of the protective component 1 after bending, specifically:

[0089] 1 / ρ=M / (EI)

[0090] Where ρ is the radius of the bending zone of the protective component 1 after bending, M is the maximum bending moment experienced by the protective component 1, and EI is the cross-sectional bending stiffness of the protective component 1. Furthermore, the deformation and bending stiffness of the protective component 1 during bending have an inverse relationship; that is, under the same bending moment, for the same material, the greater the deformation, the smaller the bending stiffness. When the display component is in such a state... Figure 5 and Figure 6 When the flexible screen 2 is in the unfolded state shown, the arrangement direction of the first part 21, the folded part 23, and the second part 22 is defined as the second direction X. Figure 5 , 6 (Presented in the left-right direction); within the plane where the flexible screen 2 (in its unfolded state) is located, the direction perpendicular to the arrangement direction of the first part 21, the folded part 23, and the second part 22 is defined as the third direction Y (…). Figure 6 The direction shown in the middle is the vertical direction); the direction perpendicular to both the second direction X and the third direction Y is defined as the first direction Z (indicated by the vertical direction); Figure 5 (The middle is presented in the vertical direction).

[0091] In this embodiment, the bending area of ​​the protective component 1 forms a screen-accommodating space for accommodating the folded portion 23 of the flexible screen 2 when the display component is in a folded state. Since the first region 12 of the bending area of ​​the protective component 1 has the largest deformation when the display component is in a folded state, when the bending stiffness of the first region 12 is greater than that of the second region 13 along the second direction X, under the same external force, the deformation of the first region 12 is less than that of the second region 13. This reduces the risk that the radius of the screen-accommodating space formed by the first region 12 is too small due to excessive deformation during the folding process, increases the bending radius after the bending area is deformed, and further reduces the risk of the flexible screen 2 delamination and breakage under the squeezing action of the protective component 1, thereby improving the service life and reliability of the display component.

[0092] Specifically, the protective component 1 can be a metal sheet, and the protective component 1 can be attached to the side of the flexible screen 2 away from the display end along the first direction Z, thereby protecting the flexible screen 2 through the protective component 1.

[0093] In the above embodiments, the first region 12 and the second region 13 with different bending stiffness in the bending area of ​​the protective component 1 can be implemented in a variety of ways. The following describes in detail the different implementation methods of the first region 12 and the second region 13 with different bending stiffness.

[0094] Specifically, such as Figure 5 , Figure 9 , Figure 13 and Figure 18 As shown, Figure 9 , Figure 13 , Figure 18 These are schematic diagrams of the display components provided in different specific embodiments of this application. The bending area of ​​the protective component 1 is provided with multiple recesses 11 recessed along the first direction Z, and the multiple recesses 11 are distributed at intervals along the second direction X and the third direction Y. The setting of the recesses 11 reduces the cross-sectional area of ​​the protective component 1 subjected to stress during bending, thereby reducing the bending stiffness of the bending area, so that the bending area of ​​the protective component 1 can generate a large deformation during folding, thereby forming a screen-accommodating space for accommodating the folded portion 23 of the flexible screen 2, which helps to realize the folding of electronic devices. Moreover, each recess 11 can reduce the compression of the folded portion 23 of the flexible screen 2 by the protective component 1, reducing the risk of the flexible screen 2 delamination and breakage. At the same time, when the protective component 1 is provided with recesses 11, it is also convenient to realize the first region 12 and the second region 13 with different bending stiffness by changing the size of the recesses 11.

[0095] In a specific embodiment, in the plane containing the third direction Y and the second direction X, the area of ​​the first region 12 is S1, and the total area of ​​the recessed portion 11 located in the first region 12 is S2, where 1 / 4 ≤ S2 / S1 ≤ 2 / 3. For example, S2 / S1 can specifically be 1 / 4, 3 / 8, 1 / 2, 2 / 3, etc.

[0096] The ratio of the total area S2 of the recessed portion 11 in the first region 12 to the area S1 of the first region 12 should not be too large or too small. If S2 / S1 is too small (e.g., less than 1 / 4), the area of ​​the recessed portion 11 in the first region 12 is too small, resulting in a large bending stiffness of the first region 12. This leads to a small deformation of the first region 12 after bending when the display component is folded, and the protective component 1 cannot provide sufficient space for the flexible screen 2, posing a risk of squeezing the folded portion 23 of the flexible screen 2. If S2 / S1 is too large (e.g., greater than 2 / 3), the area of ​​the recessed portion 11 in the first region 12 is too large, resulting in reduced strength of the protective component 1. This makes it prone to breakage during folding, reducing the lifespan of the display component.

[0097] In a specific embodiment, in the plane containing the third direction Y and the second direction X, the area of ​​the second region 13 is S3, and the total area of ​​the recessed portion 11 located in the second region 13 is S4, where 1 / 3 ≤ S4 / S3 ≤ 2 / 3. For example, S4 / S3 can specifically be 1 / 3, 3 / 8, 1 / 2, 2 / 3, etc.

[0098] The ratio of the total area S4 of the recessed portion 11 in the second region 13 to the area S3 of the second region 13 should not be too large or too small. If S4 / S3 is too small (e.g., less than 1 / 3), the area of ​​the recessed portion 11 in the second region 13 is too small, resulting in a large bending stiffness of the second region 13. This leads to a small deformation of the second region 13 after bending when the display component is folded, and the protective component 1 cannot provide sufficient space for the flexible screen 2, posing a risk of squeezing the folded portion 23 of the flexible screen 2. If S4 / S3 is too large (e.g., greater than 2 / 3), the area of ​​the recessed portion 11 in the second region 13 is too large, resulting in reduced strength of the protective component 1, making it prone to breakage during folding and reducing the lifespan of the display component.

[0099] Meanwhile, 3 / 4 ≤ S2 / S4 < 1. For example, S2 / S4 can be 3 / 4, 1 / 2, 5 / 8, etc. Wherein, along the first direction, the depth of the recess 11 in the first region 12 is the same as the depth of the recess 11 in the second region 13.

[0100] The total area S2 of the recess 11 in the first region 12 is related to the bending stiffness of the first region 12, and the total area S4 of the recess 11 in the second region 13 is related to the bending stiffness of the first region 12. The larger S2 is, the smaller the bending stiffness of the first region 12 is; the larger S4 is, the larger the bending stiffness of the second region 13 is. Therefore, the size of S2 / S4 can represent the size of the bending stiffness of the first region 12 and the bending stiffness of the second region 13. If S2 / S4 is too large (e.g., greater than 1), the total area of ​​the recessed portion 11 in the first region 12 is greater than the total area of ​​the recessed portion 11 in the second region 13, resulting in a lower bending stiffness in the first region 12 than in the second region 13. This causes the bending shape of the bending area to tend towards an elliptical shape, and the bending radius of the first region 12 to be too small, posing a risk of squeezing the folded portion 23 of the flexible screen 2. If S2 / S4 is too small (e.g., less than 3 / 4), the total area of ​​the recessed portion 11 in the first region 12 is less than the total area of ​​the recessed portion 11 in the second region 13, and the difference in the total area of ​​the two recessed portions 11 is large, resulting in a much greater bending stiffness in the first region 12 than in the second region 13. This leads to a smaller deformation of the first region 12 during bending, also posing a risk of squeezing the folded portion 23 of the flexible screen 2. Therefore, when 3 / 4 ≤ S2 / S4 < 1, the risk of the protective component 1 squeezing the flexible screen 2 during bending can be effectively reduced.

[0101] In one specific embodiment, such as Figure 7 As shown, Figure 7 for Figure 5 A schematic diagram of the bending area of ​​the middle protective component 1 shows that when the length of the recess 11 in the first region 12 is the same as the length of the recess 11 in the second region 13, and the width of the recess 11 in the first region 12 is the same as the width of the recess 11 in the second region 13, the depth t1 of the recess 11 in the first region 12 is less than the depth t2 of the recess 11 in the second region 13.

[0102] In this embodiment, the smaller the depth of the recess 11, the greater the thickness of the bottom wall of the recess 11, and the more capable the bottom wall of the recess 11 is of bearing the stress during the bending process of the protective component 1, the greater the thickness of the bottom wall of the recess 11, the larger the cross-sectional area of ​​the protective component 1 that bears the stress, the greater the bending stiffness of the protective component 1 in the corresponding region, and the smaller the deformation during bending. When the depth t1 of the recess 11 in the first region 12 is less than the depth t2 of the recess 11 in the second region 13, the bending stiffness of the first region 12 of the protective component 1 is greater than the bending stiffness of the second region 13 of the protective component 1. Therefore, when the protective component 1 is subjected to the same external force, the deformation of the first region 12 is less than the deformation of the second region 13. In this embodiment, by changing the depth of the recess 11 in different regions, the first region 12 and the second region 13 with different bending stiffnesses can be easily achieved, simplifying the structure of the protective component 1.

[0103] Optionally, the change in depth t1 of the recess 11 in the first region 12 to depth t2 of the recess 11 in the second region 13 can be set as a gradual change, that is, along the second direction X, the depth of the recess 11 gradually increases from the center of the first region 12 to the two sides of the second region 13 away from the first region 12, so that the bending stiffness of the protective component 1 changes more gently, reducing the stress concentration caused by the sudden change in bending radius in the first region 12 and the second region 13 during bending, thereby increasing the service life of the protective component 1.

[0104] Specifically, such as Figure 7 In the embodiment shown, the recess 11 in the first region 12 is a groove 112, and the recess 11 in the second region 13 is a through hole 111. That is, the recess 11 in the second region 13 penetrates the protective component 1 along the first direction Z, while the recess 11 in the first region 12 does not penetrate the protective component 1.

[0105] In this embodiment, when the recess 11 of the second region 13 is a through hole 111, the depth of the recess 11 reaches its maximum. Compared with the first region 12, the bending stiffness of the second region 13 can be further reduced, thereby making the difference between the bending stiffness of the first region 12 and the bending stiffness of the second region 13 larger. During the folding process of the display component, it ensures that the protective component 1 has a large degree of deformation when bent, thereby forming sufficient screen space, and also makes the bending shape of the bending area tend to be circular, reducing the compression of the folded part 23 of the flexible screen 2 by the bending area. In addition, when the recess 11 of the second region 13 is a through hole 111, the processing of the protective component 1 can be simplified and the processing precision can be reduced.

[0106] In the second specific embodiment, such as Figures 9-11 As shown, Figure 9 To illustrate the structure of the component in the second specific embodiment, Figure 10 for Figure 9 The bottom view, Figure 11 The diagram shows the structure of the bending area of ​​the protective component 1. Adjacent recesses 11 in the first region 12 are separated by a first distance A1 along the second direction X, and adjacent recesses 11 in the second region 13 are separated by a second distance A2 along the second direction X, where A1 > A2. A1 and A2 represent the minimum distances between adjacent recesses 11 on the protective component 1 along the second direction X.

[0107] In this embodiment, along the second direction X, the greater the distance between adjacent recesses 11, the larger the interval between recesses 11 in that region, meaning there is more material in that region without recesses 11. Since the region without recesses 11 mainly bears the stress during the bending process of the protective component 1, the more material there is without recesses 11, the larger the cross-sectional area of ​​that region, and the greater the bending stiffness of the protective component 1 in the corresponding region. Because the first distance A1 is greater than the second distance A2, the bending stiffness of the first region 12 is greater than that of the second region 13. In this embodiment, by changing the spacing of the recesses 11 in the first region 12 and the second region 13 of the protective component 1 along the second direction X, it is possible to easily achieve a greater bending stiffness in the first region 12 than in the second region 13, simplifying the structure of the protective component 1.

[0108] Specifically, 1 < A1 / A2 ≤ 1.5. For example, A1 / A2 can be 1.2, 1.3, 1.4, 1.5, etc.

[0109] The ratio of the first distance A1 to the second distance A2 should not be too large or too small. If A1 / A2 is too small (e.g., less than 1), the bending stiffness of the first region 12 is less than that of the second region 13, causing the bending shape of the bending area to tend to be elliptical. The bending radius of the first region 12 is too small, posing a risk of squeezing the folded portion 23 of the flexible screen 2. If A1 / A2 is too large (e.g., greater than 1.5), the difference in bending stiffness between the first region 12 and the second region 13 is large, resulting in too small deformation of the first region 12 during bending, also posing a risk of squeezing the folded portion 23 of the flexible screen 2. Therefore, when 1 < A1 / A2 ≤ 1.5, while the first region 12 has a large deformation, the bending radius of the first region 12 after bending can be increased, thereby reducing the squeezing of the folded portion 23 of the flexible screen 2 by the bending area of ​​the protective component 1. In the third specific embodiment, as... Figures 13-15 As shown, Figure 13 This is a schematic diagram of the structure of the display component in the third specific embodiment. Figure 14 for Figure 13 The bottom view, Figure 15 for Figure 13A schematic diagram of the bending area of ​​the protective component 1 is shown. The dimension of the recess 11 in the first region 12 along the second direction X is B1, and the dimension of the recess 11 in the second region 13 along the second direction X is B2, where B1 < B2. B1 and B2 represent the maximum distance between the recesses 11 on the protective component 1 along the second direction X.

[0110] In this embodiment, the larger the width of the recess 11 along the second direction X, the less material is in that region without the recess 11. Since the region without the recess 11 mainly bears the stress during the bending process of the protective component 1, the less material is in that region without the recess 11, the smaller the cross-sectional area of ​​that region, and the smaller the bending stiffness of the protective component 1 in that region. Because the width B1 of the recess 11 in the first region 12 along the second direction X of the protective component 1 is smaller than the width B2 of the recess 11 in the second region 13, the bending stiffness of the first region 12 is greater than that of the second region 13. In this embodiment, by changing the size of the recess 11 in the first region 12 and the second region 13 of the protective component 1 along the second direction X, it is possible to easily achieve a greater bending stiffness in the first region 12 than in the second region 13, simplifying the structure of the protective component 1 and allowing for a more intuitive representation of the bending stiffness of the two regions.

[0111] Specifically, 1 < B2 / B1 ≤ 1.5. For example, B2 / B1 can be 1.2, 1.3, 1.4, 1.5, etc.

[0112] Specifically, along the second direction X, the width dimension B2 / B1 of the recess 11 should not be too large or too small. If B2 / B1 is too small (e.g., less than 1), the bending stiffness of the first region 12 is less than that of the second region 13, causing the bending shape of the bending area to tend to be elliptical. The bending radius of the first region 12 is too small, posing a risk of squeezing the folded portion 23 of the flexible screen 2. If B2 / B1 is too large (e.g., greater than 1.5), the difference in bending stiffness between the first region 12 and the second region 13 is large, resulting in too small deformation of the first region 12 during bending, also posing a risk of squeezing the folded portion 23 of the flexible screen 2. Therefore, when 1 < B2 / B1 ≤ 1.5, while the first region 12 has a large deformation, the bending radius of the first region 12 after bending can be increased, thereby reducing the squeezing of the folded portion 23 of the flexible screen 2 by the bending area of ​​the protective component 1.

[0113] In the fourth specific embodiment, such as Figure 16 and Figure 17 As shown, Figure 16 To illustrate the structural diagram of the component in this embodiment, Figure 17 for Figure 16A schematic diagram of the bending area of ​​the display component is provided, wherein the display component is in the unfolded state. The dimension of the recessed portion 11 in the first region 12 along the third direction Y is C1, and the dimension of the recessed portion 11 in the second region 13 along the third direction Y is C2, where C1 < C2. C1 and C2 represent the maximum distance of the recessed portion 11 on the protective component 1 along the third direction Y.

[0114] In this embodiment, along the third direction Y, the larger the length of the recess 11, the less material is in that region without the recess 11. Since the region without the recess 11 is mainly used to bear the stress during the bending process of the protective component 1, the less material is in that region without the recess 11, the smaller the cross-sectional area of ​​that region, resulting in a smaller bending stiffness of the protective component 1 in the corresponding region. Because the length C1 of the recess 11 in the first region 12 along the third direction Y is smaller than the length C2 of the recess 11 in the second region 13, the bending stiffness of the first region 12 is greater than that of the second region 13.

[0115] Specifically, 1 < C2 / C1 ≤ 1.5. For example, C2 / C1 can be 1.2, 1.3, 1.4, 1.5, etc.

[0116] In this context, along the third direction Y, the length dimension C2 / C1 of the recess 11 should not be too large or too small. When C2 / C1 is too small (e.g., less than 1), the bending stiffness of the second region 13 will be greater than that of the first region 12, causing the bending shape of the bending area to tend towards an elliptical shape. The bending radius of the first region 12 will be too small, posing a risk of squeezing the folded portion 23 of the flexible screen 2. When C2 / C1 is too large (e.g., greater than 1.5), the difference in bending stiffness between the second region 13 and the first region 12 will be large, resulting in insufficient deformation of the first region 12 during bending, also posing a risk of squeezing the folded portion 23 of the flexible screen 2. Therefore, when 1 < C2 / C1 ≤ 1.5, while the first region 12 has a large deformation, the bending radius of the first region 12 after bending can be increased, thereby reducing the squeezing of the folded portion 23 of the flexible screen 2 by the bending area of ​​the protective component 1.

[0117] In the fifth specific embodiment, such as Figure 16 and Figure 17 As shown, Figure 16 To illustrate the structural diagram of the component in this specific embodiment, Figure 17 for Figure 16 The diagram shows the structure of the bending area of ​​the display component. In the first region 12, adjacent recesses 11 are separated by a third distance A3 along the third direction Y. In the second region 13, adjacent recesses 11 are separated by a fourth distance A4 along the third direction Y, where A3 > A4. A3 and A4 represent the minimum distances along the third direction Y between adjacent recesses 11 on the protective component 1.

[0118] In this embodiment, the greater the distance between adjacent recesses 11 along the third direction Y, the more material is in that area without recesses 11. Since the area without recesses 11 mainly bears the stress during the bending process of the protective component 1, the more material is in that area without recesses 11, the larger the cross-sectional area of ​​that area, resulting in a greater bending stiffness of the protective component 1 in the corresponding area. Because the third distance A3 is greater than the fourth distance A4, the bending stiffness of the first region 12 is greater than that of the second region 13. In this embodiment, by changing the spacing of the recesses 11 in the first region 12 and the second region 13 of the protective component 1 along the third direction Y, it is possible to easily achieve a greater bending stiffness in the first region 12 than in the second region 13, simplifying the structure of the protective component 1.

[0119] Specifically, 1 < A3 / A4 ≤ 1.5. For example, A3 / A4 can be 1.2, 1.3, 1.4, 1.5, etc.

[0120] The ratio of the third distance A3 to the fourth distance A4 should not be too large or too small. If A3 / A4 is too small (e.g., less than 1), the bending stiffness of the first region 12 is less than that of the second region 13, causing the bending shape of the bending area to tend to be elliptical. The bending radius of the first region 12 is too small, posing a risk of squeezing the folded portion 23 of the flexible screen 2. If A3 / A4 is too large (e.g., greater than 1.5), the difference in bending stiffness between the first region 12 and the second region 13 is large, resulting in too small deformation of the first region 12 during bending, also posing a risk of squeezing the folded portion 23 of the flexible screen 2. Therefore, when 1 < A3 / A4 ≤ 1.5, while the first region 12 has a large deformation, the bending radius of the first region 12 after bending can be increased, thereby reducing the squeezing of the folded portion 23 of the flexible screen 2 by the bending area of ​​the protective component 1.

[0121] In the sixth specific embodiment, such as Figure 18 As shown, Figure 18 The diagram shows the structure of the display component in this specific embodiment. The display component is in an unfolded state. The second region 13 includes at least a first layer 15 and a second layer 16 stacked together along the first direction Z. The first region 12 includes a third layer 17. Along the first direction Z, the thickness of the third layer 17 is the same as the sum of the thicknesses of the first layer 15 and the second layer 16. The third layer 17 and the first layer 15 can be an integral structure or a separate structure. The elastic modulus of the materials of the first layer 15 and the third layer 17 is greater than the elastic modulus of the material of the second layer 16.

[0122] In this embodiment, the first region 12 includes a third layer 17 with a larger elastic modulus, and the second region 13 includes a first layer 15 with a larger elastic modulus and a second layer 16 with a smaller elastic modulus. Along the first direction Z, the thickness of the third layer 17 is the same as the sum of the thicknesses of the first layer 15 and the second layer 16. That is, the overall elastic modulus of the first region 12 is greater than the overall elastic modulus of the second region 13. With the same cross-sectional area, a larger elastic modulus results in greater bending stiffness and smaller deformation during bending. Therefore, the bending stiffness of the first region 12 is greater than that of the second region 13, thereby reducing the risk that the radius of the resulting screen space will be too small due to excessive deformation during folding of the first region 12.

[0123] In this embodiment, the first layer 15 and the second layer 16 in the second region 13 can be bonded together.

[0124] In the seventh specific embodiment, such as Figure 19 and Figure 20 As shown, Figure 19 To illustrate the structural diagram of the component in the seventh specific embodiment, Figure 20 for Figure 19 In the bottom view, along the first direction Z, at least a portion of the thickness of the second region 13 is less than the thickness of the first region 12, that is, the second region 13 has a thinning region 18, the thickness of the thinning region 18 is less than the thickness of the first region 12, and the second region 13 is entirely or partially thinning region 18.

[0125] In this embodiment, since the second region 13 is provided with a thinning region 18, the material in the second region 13 used to bear the stress during the bending process of the protective component 1 is less than that in the first region 12, thereby achieving a bending stiffness in the second region 13 that is less than that in the first region 12.

[0126] In the above embodiments, as Figure 6 , Figure 10 , Figure 14 and Figure 16 As shown, the width of the first region 12 is D1, and the width of the bending area of ​​the protective component 1 is D2, where 1 / 2 ≤ D1 / D2 ≤ 2 / 3. For example, D1 / D2 can be 0.5, 0.55, 0.6, etc.

[0127] As mentioned above, the first region 12 is the part with higher bending stiffness in the bending area. Therefore, D1 / D2 can represent the proportion of the part with higher bending stiffness in the entire bending area. The value of D1 / D2 should not be too large or too small. When the value of D1 / D2 is too large, the size of the first region 12 along the second direction X is too large, and the proportion of the bending stiffness, i.e., the area with higher bending stiffness in the bending area, is too large. This results in the overall deformation of the bending area being too small during the folding process, which means that the bending area cannot provide sufficient space for the folded part 23 of the flexible screen 2 and increases the difficulty of bending the display component. When the value of D1 / D2 is too small, the size of the first region 12 along the second direction X is too small, and the proportion of the bending stiffness, i.e., the first region 12 with higher bending stiffness in the bending area, is too small. This means that the first region 12 cannot effectively increase the bending radius of the bending area during the folding process, causing compression to the flexible screen 2.

[0128] In one specific embodiment, such as Figure 21 As shown, after the display component is folded, the folding part 23 of the flexible screen 2 is folded into a baseball bat shape. It can be seen from the figure that the folding part 23 of the flexible screen 2 is folded only once, that is, the bending area of ​​the protective component 1 is folded once. At this time, the first area 12 and the second area 13 of the bending area correspond to the folding part 23 of the flexible screen 2.

[0129] In another specific embodiment, such as Figure 8 and Figure 12 As shown, after the display component is folded, the folded portion 23 of the flexible screen 2 is folded into a teardrop shape. As can be seen from the figure, the folded portion 23 of the flexible screen 2 is folded from both sides, that is, the bending area of ​​the protective component 1 is folded twice. Therefore, the folded portion 23 includes a first folded portion 231 and a second folded portion 232. The first folded portion 231 is arc-shaped. Correspondingly, in addition to the first area 12 and the second area 13, the bending area of ​​the protective component 1 also includes two outer areas 14. The two outer areas 14 are located along the second direction X on the side of the two second areas 13 away from the first area 12. When the display component is in the folded state, the two outer areas 14 correspond to the second folded portion 232 of the flexible screen 2.

[0130] In the above embodiments, the recessed portion 11 can be a regular shape such as a rectangular structure, or it can be other shapes, such as... Figure 22 and Figure 23 As shown, Figure 22 and Figure 23All images shown are enlarged views of the first region 12 of the display assembly in its unfolded state. The two ends of the recessed portion 11 of the protective component 1 may also include arc segments or shapes with uneven dimensions along the second direction X, thereby reducing stress concentration in the recessed portion 11 and improving the structural strength of the protective component 1 and the display assembly. In this case, along the second direction X, the first distance A1 in the figures is the minimum distance between adjacent recessed portions 11 on the same cross-section, and the fifth distance A5 is the minimum distance between adjacent recessed portions 11 along the second direction X.

[0131] Meanwhile, the shape of the recess 11 in the second region 13 can be consistent with the shape of the recess 11 in the first region 12, or they can be different, so that the bending stiffness of the first region 12 is greater than that of the second region 13.

[0132] It should be noted that a portion of this patent application contains copyrighted material. The copyright holder retains all rights except for making copies of the contents of patent documents or records from the patent office.

Claims

1. A display component for a foldable electronic device, characterized in that, The display component includes: Flexible screen; A protective component, which is connected to the flexible screen along a first direction; The bending area of ​​the protective component includes a first region and a second region, and along the second direction of the protective component, the second region is located on both sides of the first region; When the display component is bent, the average deformation of the first region is less than the average deformation of the second region along the second direction of the protective component. The bending area is provided with a plurality of recesses that are recessed along the first direction of the protective component, and the plurality of recesses are distributed at intervals along the second direction and the third direction of the protective component. The depth t1 of the recess in the first region is less than the depth t2 of the recess in the second region; along the second direction, the depth of the recess gradually increases from the center of the first region toward the sides of the second region away from the first region.

2. The display component according to claim 1, characterized in that, The recessed portion located in the first region is a groove, and the recessed portion located in the second region is a through hole penetrating the protective component along the first direction of the protective component.

3. The display component according to claim 1, characterized in that, The adjacent recesses in the first region have a first distance A1 along the second direction of the protective member, and the adjacent recesses in the second region have a second distance A2 along the second direction of the protective member, where A1 > A2.

4. The display component according to claim 3, characterized in that, 1 < A1 / A2 ≤ 1.

5.

5. The display component according to claim 1, characterized in that, The dimension of the recess in the first region along the second direction of the protective member is B1, and the dimension of the recess in the second region along the second direction of the protective member is B2, where B1 < B2.

6. The display component according to claim 5, characterized in that, 1 < B2 / B1 ≤ 1.

5.

7. The display component according to claim 1, characterized in that, The dimension of the recessed portion in the first region along the third direction of the protective component is C1, and the dimension of the recessed portion in the second region along the third direction of the protective component is C2, where C1 < C2.

8. The display component according to claim 7, characterized in that, 1 < C2 / C1 ≤ 1.

5.

9. The display component according to claim 1, characterized in that, The adjacent recesses in the first region have a third distance A3 along a third direction of the protective member, and the adjacent recesses in the second region have a fourth distance A4 along a third direction of the protective member, where A3 > A4.

10. The display component according to claim 9, characterized in that, 1 < A3 / A4 ≤ 1.

5.

11. The display component according to claim 1, characterized in that, The second region includes at least a first layer and a second layer stacked on top of each other along a first direction of the protective member, the first region includes a third layer, and the thickness of the third layer is the same as the sum of the thicknesses of the first layer and the second layer; The elastic modulus of the materials in the first and third layers is greater than that of the material in the second layer.

12. The display component according to claim 1, characterized in that, Along the first direction of the protective component, at least a portion of the thickness of the second region is less than the thickness of the first region.

13. The display component according to any one of claims 1 to 12, characterized in that, The width of the first region is D1, and the width of the bending area of ​​the protective component is D2, where 1 / 2 ≤ D1 / D2 ≤ 2 / 3.

14. A foldable electronic device, characterized in that, The foldable electronic device includes: case; The display component is the display component according to any one of claims 1 to 13; The display component is mounted on the housing.

Images