Folding screen and foldable electronic equipment

Abstract

The invention provides a folding screen and foldable electronic equipment, and relates to the technical field of electronic equipment. The folding screen comprises a display module, a reinforcing layer is arranged on at least one side of a first side of the display module and a second side of the display module, the reinforcing layer comprises a substrate and a plurality of flexible glass parts, the flexible glass parts are embedded in the substrate, and the flexible glass parts are arranged in the substrate at intervals, so that the folding screen is formed. The flexible glass parts are arranged at intervals in the first direction, and all the flexible glass parts extend in the second direction perpendicular to the first direction and penetrate through the two sides of the folding screen. The flexible glass parts are small in width, high in hardness, smaller in deformation quantity and good in tensile effect, tensile deformation of the folding screen can be reduced, creases of the folding screen are effectively improved, and the appearance effect of the folding screen is improved. Moreover, the flexible glass parts are embedded in the substrate, so that the substrate can better absorb deformation stress, the integrity and consistency of the reinforcing layer are enhanced, and the service life of the folding screen is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and in particular to a foldable screen and a foldable electronic device. Background Art

[0002] Folding screens have the property of being bendable, so that electronic devices equipped with folding screens, i.e. foldable electronic devices, can switch between an unfolded state and a folded state. Foldable electronic devices have a large display area and are easy to carry, and are increasingly favored by consumers.

[0003] During the long-term use of foldable electronic devices, the foldable screen will be folded and unfolded repeatedly. In existing foldable screens, uneven creases will be produced in the bending area, and the creases are particularly obvious when the screen is black. This will affect the appearance of the foldable screen and the user experience of the electronic device is not good. In addition, it is easy to cause problems such as film breakage and delamination of the foldable screen, which reduces the life of the foldable screen. Summary of the invention

[0004] The present application provides a folding screen and a foldable electronic device. The folding screen has high tensile strength, which can reduce the elongation deformation of the folding screen, improve the creases of the folding screen, enhance the appearance of the folding screen, and extend the service life of the folding screen.

[0005] One aspect of the present application provides a folding screen, comprising a first area, a bendable area, and a second area sequentially arranged along a first direction, the folding screen comprising:

[0006] A display module, two sides of which are respectively a first side and a second side in a thickness direction, and the first side corresponds to a display surface of the display module;

[0007] A reinforcing layer, disposed on at least one of the first side of the display module and the second side of the display module;

[0008] Among them, at least one side of the reinforcement layer includes a base and multiple flexible glass parts, each flexible glass part is embedded in the base; each flexible glass part is arranged at intervals along a first direction, and each flexible glass part extends along a second direction and passes through both sides of the folding screen, and the second direction is perpendicular to the first direction.

[0009] The folding screen provided by the present application includes a display module, and the two sides of the display module in the thickness direction are respectively its first side and its second side. By setting a reinforcement layer on at least one of the first side of the display module and the second side of the display module, the reinforcement layer includes a substrate and a plurality of flexible glass parts, each of which is embedded in the substrate, each of which is spaced along the first direction, and each of which extends along the second direction perpendicular to the first direction and passes through both sides of the folding screen. By arranging a plurality of flexible glass parts at intervals in the substrate, each of which has a small width and high hardness, each of which has a smaller deformation amount and good tensile resistance, the tensile deformation of the folding screen can be reduced, the folding marks of the folding screen can be effectively improved, and the appearance of the folding screen and the user experience of the foldable electronic device can be improved. In addition, by embedding each flexible glass part in the substrate, the substrate can better absorb the deformation stress, enhance the integrity and consistency of the reinforcement layer, and extend the service life of the folding screen.

[0010] In a possible implementation, the reinforcement layer includes a first reinforcement layer and a second reinforcement layer, the first reinforcement layer is located on a first side of the display module, and the second reinforcement layer is located on a second side of the display module.

[0011] By providing reinforcement layers on both sides of the display module, the first reinforcement layer and the second reinforcement layer constrain the display module, thereby enhancing the stability of the display module and enhancing the overall tensile resistance of the folding screen.

[0012] In a possible implementation manner, the first reinforcement layer and the second reinforcement layer are respectively attached to two side surfaces of the display module.

[0013] By directly attaching the first reinforcement layer and the second reinforcement layer to the two side surfaces of the display module, the first reinforcement layer and the second reinforcement layer have a stronger restraining effect on the display module, which can enhance the stability of the display module, improve the stability of the folding screen, and weaken or even eliminate the creases of the folding screen.

[0014] In a possible implementation, at least a portion of the flexible glass portion is located on a first surface of the reinforcement layer; wherein the first surface is a side surface of the reinforcement layer facing the front side of the folding screen.

[0015] By setting at least part of the flexible glass portion on the first surface of the reinforcement layer, when the folding screen is bent, the flexible glass portions in the reinforcement layer are closer, the flexible glass portions can better play an anti-stretching role, which helps to improve the anti-stretching performance of the reinforcement layer, and the folding screen can better resist tensile deformation.

[0016] In a possible implementation manner, each flexible glass portion is disposed on the first surface of the reinforcement layer.

[0017] By arranging each flexible glass part on the first surface of the reinforcing layer, each flexible glass part can play a better role in resisting stretching, and the overall anti-stretching effect of the folding screen is better. In addition, it is convenient to connect each flexible glass part to the substrate, which can improve the manufacturing efficiency of the reinforcing layer.

[0018] In a possible implementation, the flexible glass portion located in the bendable area is far away from the front of the folding screen, and the flexible glass portion located in the first area and the flexible glass portion located in the second area are close to the front of the folding screen.

[0019] By making the flexible glass portion of the bendable area away from the front of the folding screen and making the flexible glass portion of the first area and the flexible glass portion of the second area close to the front of the folding screen, when the folding screen is bent, the overall bending degree of all the flexible glass portions in the reinforcement layer is greater than the overall bending degree of the folding screen, the reinforcement layer has a stronger anti-tensile effect, and the folding screen can better resist tensile deformation.

[0020] In a possible implementation, the flexible glass portion located in the bendable area is disposed on the second surface of the reinforcement layer; wherein the second surface is a side surface of the reinforcement layer facing away from the front side of the folding screen.

[0021] By setting the flexible glass part of the bendable area on the second surface of the reinforcement layer, the step difference between the flexible glass part of the bendable area and the flexible glass parts of the first area and the second area is larger. When the folding screen is bent, the overall bending degree of all the flexible glass parts in the reinforcement layer is greater, and the tensile resistance of the reinforcement layer is better, which can better weaken or even eliminate the creases of the folding screen.

[0022] In a possible implementation, the flexible glass portion gradually approaches the front side of the folding screen from the bendable area to the first area and from the bendable area to the second area.

[0023] In the direction from the bendable area to the first area and from the bendable area to the second area, by making the flexible glass parts gradually approach the front of the folding screen, the flexible glass parts are arranged regularly, and the reinforcement layer has a more balanced anti-tensile effect on the overall folding screen. The overall folding screen has better uniformity and consistency in resisting tensile deformation, which helps to improve the flatness of the folding screen.

[0024] In a possible implementation manner, the distances between any two adjacent flexible glass portions are equal.

[0025] By making the spacing between each two adjacent flexible glass parts equal, the flexible glass parts are evenly spaced in the reinforcement layer. In this way, the tensile strength of each area in the reinforcement layer is relatively uniform, and the tensile strength of the folding screen as a whole is more balanced, which helps to improve the overall flatness of the folding screen.

[0026] In a possible implementation manner, the widths of the flexible glass portions are equal.

[0027] By making the widths of the flexible glass parts equal, the tensile strength of the flexible glass parts is relatively uniform, and the tensile strength of the overall strengthening layer is more balanced and consistent. In addition, it is easy to process and manufacture the flexible glass parts, which helps to improve the manufacturing efficiency of the strengthening layer.

[0028] In a possible implementation, the width of the flexible glass portion located in the bendable area is greater than the width of the flexible glass portion located in the first area and the width of the flexible glass portion located in the second area.

[0029] By increasing the width of the flexible glass portion in the bendable area, the tensile strength of the reinforcement layer in the bendable area can be enhanced, and the flatness of the bendable area and its surrounding areas can be improved. By maintaining a relatively small width of the flexible glass portion in the first and second areas, the tensile deformation of the first and second areas can be reduced, and the influence of the first and second areas on the bendable area can be reduced. In turn, the flatness of the folding screen is improved, and the creases of the folding screen are improved or even eliminated.

[0030] In a possible implementation manner, the ratio of the thickness of the flexible glass portion to the total thickness of the reinforcement layer is ≥ 1 / 2.

[0031] By making the thickness of the flexible glass part ≥ 1 / 2 of the total thickness of the reinforcement layer, the thickness space occupied by the flexible glass part in the reinforcement layer is larger, which can ensure that the flexible glass part can effectively play an anti-stretching role, ensure that the reinforcement layer has a good anti-stretching effect, improve the flatness of the folding screen, and improve or even eliminate the creases of the folding screen.

[0032] In a possible implementation, the first reinforcement layer includes a first substrate and a plurality of first flexible glass portions embedded in the first substrate, and the second reinforcement layer includes a second substrate and a plurality of second flexible glass portions embedded in the second substrate.

[0033] In a possible implementation, the width of each first flexible glass portion is the first width, and the distance between every two adjacent first flexible glass portions is the first distance.

[0034] By making the widths of the first flexible glass parts equal and the spacing between each two adjacent first flexible glass parts equal, the first reinforcement layer has good balance and consistency, which is conducive to improving the overall tensile resistance of the folding screen, improving the flatness of the folding screen, and reducing or even eliminating the folding marks of the folding screen. In addition, it is convenient to design and process the first substrate and improve the production efficiency of the first reinforcement layer.

[0035] In a possible implementation, the width of each second flexible glass portion is the second width, and the distance between every two adjacent second flexible glass portions is the second distance.

[0036] By making the width of each second flexible glass portion equal and the spacing between each adjacent second flexible glass portion equal, the overall tensile strength of the second reinforcement layer is more balanced, which is beneficial to improving the overall tensile strength of the folding screen, improving the flatness of the folding screen, and facilitating the design and processing of the second reinforcement layer.

[0037] In a possible implementation manner, the first width is equal to the second width, and the first interval is equal to the second interval.

[0038] By making the second width equal to the first width and the second spacing equal to the first spacing, the second reinforcement layer and the first reinforcement layer have similar tensile strength, and the first reinforcement layer and the second reinforcement layer constrain the display module, thereby enhancing the stability of the display module.

[0039] In a possible implementation manner, the orthographic projection of each first flexible glass portion on the second reinforcement layer completely overlaps with each second flexible glass portion.

[0040] By making each second flexible glass part in the second reinforcement layer face each first flexible glass part in the first reinforcement layer, the structure of the second reinforcement layer can be completely consistent with the structure of the first reinforcement layer. The first reinforcement layer and the second reinforcement layer have good consistency, which is conducive to improving the stability and reliability of the folding screen. In addition, the processing and manufacturing of the first reinforcement layer and the second reinforcement layer are convenient.

[0041] In a possible implementation, the first width is greater than the second width, and the first spacing is less than or equal to the second spacing.

[0042] By making the first width greater than the second width, the tensile strength of the first reinforcement layer can be enhanced, the tensile resistance of the folding screen as a whole can be improved, the flatness of the folding screen can be improved, and the creases of the folding screen can be weakened or even eliminated. In addition, by making the first spacing smaller than the second spacing, the performance differences between different areas of the first reinforcement layer can be avoided, and the overall balance and consistency of the first reinforcement layer can be improved.

[0043] In a possible implementation, the width of the second flexible glass portion located in the bendable area is greater than the width of the second flexible glass portion located in the first area and the width of the second flexible glass portion located in the second area.

[0044] By making the width of the second flexible glass portion in the bendable area greater than the width of the second flexible glass portion in the first area and the second area, the tensile strength of the second reinforcement layer in the bendable area can be enhanced. Through the combined effect of the first reinforcement layer and the second reinforcement layer, the tensile strength of the bendable area of ​​the foldable screen is enhanced, and the flatness of the bendable area of ​​the foldable screen and the surrounding area is improved.

[0045] In a possible implementation, the width of the second flexible glass portion located in the bendable area is greater than the first width, and the width of the second flexible glass portion located in the first area and the width of the second flexible glass portion located in the second area are less than the first width.

[0046] In a possible implementation manner, the distance between every two adjacent second flexible glass portions is equal, and the distance between adjacent second flexible glass portions is greater than the first distance.

[0047] In a possible implementation manner, each first flexible glass portion is disposed on the first surface of the first reinforcement layer.

[0048] By arranging each first flexible glass portion on the first surface of the first reinforcement layer, the first surface of the first reinforcement layer has a stronger tensile resistance, which can improve the flatness of the folding screen. In addition, it is convenient to connect each first flexible glass portion to the substrate, which can improve the manufacturing efficiency of the first reinforcement layer.

[0049] In a possible implementation, the first reinforcement layer includes a first substrate and a flexible glass layer disposed on the first substrate, and the second reinforcement layer includes a second substrate and a plurality of second flexible glass portions embedded in the second substrate.

[0050] By arranging the first substrate and the flexible glass layer to form the first reinforcement layer, the flexible glass layer covers the entire first substrate, the flexible glass layer has a large coverage area and good tensile resistance, and the tensile resistance of the first reinforcement layer can be improved. Furthermore, under the joint action of the first reinforcement layer and the second reinforcement layer, the overall tensile resistance of the folding screen can be enhanced, the flatness of the folding screen can be improved, and the creases of the folding screen can be weakened or even eliminated.

[0051] In a possible implementation, it further includes:

[0052] Protective layer, located on the front of the folding screen.

[0053] In a possible implementation, it further includes:

[0054] The support plate is located on the back of the folding screen; the support plate includes a deformation part and a non-deformation part, and the non-deformation part is connected to both sides of the deformation part.

[0055] Another aspect of the present application provides a foldable electronic device, including a shell assembly and the folding screen as described above, wherein the folding screen is mounted on the shell assembly.

[0056] The foldable electronic device provided by the present application includes a foldable screen, and the foldable screen includes a display module, and the two sides of the display module in the thickness direction are respectively the first side and the second side thereof. By arranging a reinforcement layer on at least one of the first side of the display module and the second side of the display module, the reinforcement layer includes a substrate and a plurality of flexible glass parts, each of which is embedded in the substrate, each of which is arranged at intervals along the first direction, and each of which extends along a second direction perpendicular to the first direction and passes through both sides of the foldable screen. By arranging a plurality of flexible glass parts at intervals in the substrate, each of which has a small width and high hardness, each of which has a smaller deformation amount and good tensile resistance, the tensile deformation of the foldable screen can be reduced, the folding marks of the foldable screen can be effectively improved, and the appearance of the foldable screen and the user experience of the foldable electronic device can be improved. In addition, by embedding each flexible glass part in the substrate, the substrate can better absorb the deformation stress, enhance the integrity and consistency of the reinforcement layer, and extend the service life of the foldable screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic diagram of the structure of a foldable electronic device provided in an embodiment of the present application when in an unfolded state;

[0058] Figure 2 for Figure 1 A schematic diagram of the structure of the foldable electronic device shown in FIG. 1 when the foldable electronic device is in a folded state;

[0059] Figure 3 for Figure 1 A schematic diagram of the structure of the foldable electronic device in a semi-expanded state;

[0060] Figure 4 A schematic diagram of the exploded structure of a foldable electronic device provided in an embodiment of the present application;

[0061] Figure 5 It is a structural schematic diagram of a folding screen in the related art;

[0062] Figure 6 for Figure 5 The decomposition diagram of the folding screen in the ;

[0063] Figure 7 A schematic diagram of the structure of a folding screen provided in an embodiment of the present application;

[0064] Figure 8 A schematic diagram of the structure of another folding screen provided in an embodiment of the present application;

[0065] Fig. 9 A schematic diagram of the structure of a third folding screen provided in an embodiment of the present application;

[0066] Fig.10 A structural schematic diagram of a reinforcement layer provided in an embodiment of the present application;

[0067] Fig.11 A schematic diagram of the structure of another reinforcement layer provided in an embodiment of the present application;

[0068] Fig.12 A schematic diagram of the structure of a third reinforcement layer provided in an embodiment of the present application;

[0069] Fig.13 A schematic diagram of the structure of the fourth reinforcement layer provided in the embodiment of the present application;

[0070] Fig.14 A schematic diagram of a first structure of a first reinforcement layer and a second reinforcement layer provided in an embodiment of the present application;

[0071] Fig.15 A second structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application;

[0072] Fig.16 A third structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application;

[0073] Fig.17 A fourth structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application;

[0074] Fig.18 A fifth structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in the embodiment of the present application;

[0075] Fig.19 A sixth structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application;

[0076] Fig. 20 A seventh structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application.

[0077] Description of reference numerals:

[0078] 10- Foldable electronic devices;

[0079] 100-display screen; 100a-folding screen; 100b-bar screen; 200-housing assembly;

[0080] 110-display module; 120-reinforcement layer; 130-protection layer; 140-support plate; 210-first shell; 220-second shell; 230-rotating shaft;

[0081] 111 - display layer; 112 - substrate layer; 121 - base; 122 - flexible glass portion; 141 - deformation portion; 142 - non-deformation portion;

[0082] 120a-first reinforcement layer; 120b-second reinforcement layer;

[0083] 121a-first substrate; 122a-first flexible glass portion; 123a-flexible glass layer; 121b-second substrate; 122b-second flexible glass portion; 1411-support bar;

[0084] 101 - first area; 102 - bendable area; 103 - second area; 201 - middle frame; 202 - back cover. DETAILED DESCRIPTION

[0085] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0086] The embodiment of the present application provides a foldable electronic device, which includes but is not limited to foldable electronic products such as mobile phones, tablet personal computers, laptop computers, notebook computers, netbooks, personal digital assistants (PDAs), personal computers, multimedia players, e-book readers, vehicle-mounted devices, virtual reality (VR) devices, augmented reality (AR) devices, or wearable devices. Among them, wearable devices include but are not limited to smart bracelets, smart watches, smart head-mounted displays, smart glasses, etc.

[0087] Figure 1 A schematic diagram of the structure of a foldable electronic device provided in an embodiment of the present application when in an unfolded state. Figure 2 for Figure 1 A schematic diagram of the structure of a foldable electronic device shown in FIG. 1 is a schematic diagram of the structure of a foldable electronic device in a folded state. Figure 3 for Figure 1 Schematic diagram of the structure of the foldable electronic device in a semi-expanded state.

[0088] Reference Figures 1 to 3 As shown, this embodiment takes the foldable electronic device 10 as a foldable mobile phone as an example for description.

[0089] For the foldable electronic device 10, in different usage scenarios, the foldable electronic device 10 may have different usage states. Figure 1 The foldable electronic device 10 is shown in an unfolded state, and the unfolding angle α of the foldable electronic device 10 is, for example, 180°. At this time, the foldable electronic device 10 can realize a large-screen display; Figure 2The foldable electronic device 10 is shown in a folded state. At this time, the foldable electronic device 10 is small in size and easy to carry; Figure 3 The foldable electronic device 10 is shown in a semi-expanded state. At this time, the foldable electronic device 10 is suspended at a certain angle between the expanded state and the folded state. Exemplarily, the suspension angle β of the foldable electronic device 10 can be 120°, 130°, 140° or 150°, etc.

[0090] It should be noted that the angles described in this embodiment are allowed to have a slight deviation. Figure 1 The unfolding angle α of the foldable electronic device 10 shown is 180°, which means that the unfolding angle α can be 180°, or about 180°, such as 170°, 175°, 185° or 190°, etc. The angles exemplified below can be understood in the same way.

[0091] in addition, Figures 1 to 3 The foldable electronic device 10 shown in the figure is a foldable electronic device 10 that can be folded once. The foldable electronic device 10 includes two parts that can rotate relative to each other. When the two parts rotate to be coplanar, the foldable electronic device 10 is in an unfolded state (such as Figure 1 When the two parts are rotated to overlap each other, the foldable electronic device 10 is in a folded state (as shown in FIG. Figure 2 When the two parts rotate to a certain angle between the unfolded state and the folded state, the foldable electronic device 10 is in a semi-expanded state (as shown in FIG. Figure 3 shown).

[0092] In other embodiments, the foldable electronic device 10 may also be an electronic device that can be folded more than twice. In this case, the foldable electronic device 10 may include multiple parts that are connected and rotated in sequence. Two adjacent parts can be relatively far apart to be unfolded to an unfolded state, and two adjacent parts can be relatively close to be folded to a folded state.

[0093] Figure 4 This is a schematic diagram of the exploded structure of a foldable electronic device provided in an embodiment of the present application. Figure 4 As shown, the foldable electronic device 10 includes a display screen 100 and a housing assembly 200. One side surface of the display screen 100 is used to display image information, and the side surface of the display screen 100 is usually defined as its front side, and the other side surface opposite to the front side is its back side. The housing assembly 200 is arranged around the side and back side of the display screen 100 to support and fix the display screen 100 and provide protection. The front side of the display screen 100 is exposed outside the housing assembly 200, so that the user can view the content displayed on the display screen 100 or perform input operations on the foldable electronic device 10.

[0094] The display screen 100 of the foldable electronic device 10 may include a foldable screen 100a, and the foldable screen 100a may include a first area 101, a bendable area 102, and a second area 103 arranged in sequence along a first direction, or in other words, in the first direction, the bendable area 102 is located between the first area 101 and the second area 103. The folding method of the foldable electronic device 10 may be: Figures 1 to 3 In the horizontal fold shown in FIG, the first direction can be Figure 1 Of course, the foldable electronic device 10 may also be folded vertically, which is not limited in this embodiment.

[0095] For example, in the folding screen 100a, at least the bendable area 102 is made of a flexible material so that the bendable area 102 is bendable. The first area 101 and the second area 103 can be made of a flexible material, or a rigid material, or partially made of a rigid material and partially made of a flexible material, which is not limited in this embodiment.

[0096] The folding screen 100a can be, but is not limited to, an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display, a mini organic light-emitting diode display, a micro organic light-emitting diode display, a micro organic light-emitting diode display, or a quantum dot light emitting diode (QLED) display, etc.

[0097] During the use of the foldable electronic device 10, the first area 101 and the second area 103 of the foldable screen 100a always remain in a planar state, and the bendable area 102 of the foldable screen 100a can be bent to change the angle between the first area 101 and the second area 103, so that the foldable screen 100a can be folded or unfolded with the movement of the shell assembly 200, thereby realizing the switching of the foldable electronic device 10 between the folded state and the unfolded state.

[0098] Driven by the housing assembly 200, the folding screen 100a can switch between the unfolded state and the folded state. Figure 1 and Figure 4As shown, when the folding screen 100a is in the unfolded state, the first area 101 and the second area 103 are in a relatively far unfolded state, the bendable area 102 is in a flattened state without bending, and the first area 101, the second area 103 and the bendable area 102 are in the same direction and in a coplanar state. At this time, the angle between the first area 101 and the second area 103 is 180°, and the folding screen 100a can realize a large-screen display, which can provide users with richer information and bring users a better user experience. Figure 2 and Figure 4 As shown, when the folding screen 100a is in the folded state, the first area 101 and the second area 103 are relatively stacked, the bendable area 102 is in a bent state, and the bending angle of the bendable area 102 is, for example, 180°. At this time, the foldable electronic device 10 is small in size and easy to carry and store.

[0099] It should be noted that this embodiment takes the foldable electronic device 10 as an inward-folding electronic device as an example. When the foldable electronic device 10 is in a folded state, the first area 101 and the second area 103 of the folding screen 100a are relatively attached, the bendable area 102 is in a bent state, and the housing assembly 200 protects the folding screen 100a, thereby preventing the folding screen 100a from being scratched by hard objects. Figure 2 or Figure 3 As shown, if the inward-folding electronic device needs to realize the display function in the folded state, a straight screen 100b can be added to the back of the shell. The foldable electronic device 10 realizes the display function by relying on the straight screen 100b in the folded state.

[0100] In other words, the inward-folding electronic device may include a folding screen 100a and a straight screen 100b. The folding screen 100a may be mounted on the front of the housing assembly 200. With the movement of the housing assembly 200, the folding screen 100a may switch between the unfolded state and the folded state. When the foldable electronic device 10 is in the folded state, the folding screen 100a is not visible to the outside. The straight screen 100b may be mounted on the back of the housing assembly 200. The straight screen 100b is displayed when the foldable electronic device 10 is in the folded state.

[0101] In other examples, the foldable electronic device 10 may also be an external folding electronic device. When the foldable electronic device 10 is in a folded state, the first area 101 and the second area 103 of the folding screen 100a are opposite to each other, the housing assembly 200 is located between the first area 101 and the second area 103, and the folding screen 100a is surrounded outside the housing assembly 200 and is visible to the user. When the external folding electronic device is in a folded state, the folding screen 100a is exposed to the outside, and the folding screen 100a can be used to realize the display function. Therefore, there is no need to add an additional straight screen 100b on the back of the housing in order to realize the display function of the foldable electronic device 10 in the folded state.

[0102] In addition, in some embodiments, the foldable electronic device 10, especially the inward-folding electronic device, can be suspended at a certain angle between the unfolded state and the folded state. For example, the hovering angle of the foldable electronic device 10 can be 120°, 130°, 140° or 150°, etc. Among them, the housing assembly 200 can be suspended in a semi-expanded state between the folded state and the unfolded state by relying on the damping force provided by the housing assembly 200, and the folding screen 100a stays in the semi-expanded state with the housing assembly 200. At this time, the bendable area 102 of the folding screen 100a is also in a bent state, and the bending degree of the bendable area 102 is less than the bending degree when it is in the folded state. The first area 101 and the second area 103 of the folding screen 100a are relatively inclined, and the angle between the first area 101 and the second area 103 is, for example, 120°, 130°, 140° or 150°, etc.

[0103] The housing assembly 200 is used to support and fix the folding screen 100a, and drive the folding screen 100a to switch between the folded state and the unfolded state. Figure 4 As shown, the shell assembly 200 includes a first shell 210, a second shell 220 and a rotating shaft 230. The rotating shaft 230 is connected between the first shell 210 and the second shell 220. The first shell 210 and the second shell 220 are rotatably connected through the rotating shaft 230, thereby realizing relative rotation between the first shell 210 and the second shell 220.

[0104] Among them, the first housing 210 supports and fixes the first area 101 of the folding screen 100a, and the second housing 220 supports and fixes the second area 103 of the folding screen 100a. In other words, the first area 101 of the folding screen 100a is fixedly connected to the first housing 210, and the second area 103 of the folding screen 100a is fixedly connected to the second housing 220. The bendable area 102 of the folding screen 100a is arranged corresponding to the rotating shaft 230. When the rotating shaft 230 drives the first housing 210 and the second housing 220 to rotate relative to each other, the first area 101 and the second area 103 of the folding screen 100a change their orientation accordingly, and the bendable area 102 of the folding screen 100a bends or flattens as the orientation of the first area 101 and the second area 103 changes.

[0105] The rotating shaft 230 drives the first shell 210 and the second shell 220 to rotate relative to each other, so that the foldable electronic device 10 switches between the folded state and the unfolded state. The first shell 210 and the second shell 220 can rotate in a direction away from each other until they are coplanar. At this time, the shell assembly 200 is in the unfolded state, and the folding screen 100a is in the unfolded state as the shell assembly 200 is unfolded. Figure 1As shown; the first shell 210 and the second shell 220 can also be rotated in a direction close to each other until the two are relatively stacked. At this time, the shell assembly 200 is in a folded state, and the folding screen 100a is in a folded state with the folding of the shell assembly 200, as shown Figure 2 shown.

[0106] Exemplarily, the first housing 210 may have a support surface facing the first area 101 of the folding screen 100a, and the first area 101 of the folding screen 100a is attached to the support surface of the first housing 210, for example, the first area 101 of the folding screen 100a is bonded to the support surface of the first housing 210. Similarly, the second housing 220 may have a support surface facing the second area 103 of the folding screen 100a, and the second area 103 of the folding screen 100a is attached to the support surface of the second housing 220, for example, the second area 103 of the folding screen 100a is bonded to the support surface of the second housing 220.

[0107] In addition, both the first shell 210 and the second shell 220 may have a storage space, and some functional devices (not shown in the figure) of the foldable electronic device 10 may be installed in the storage space, for example, circuit boards, batteries, camera modules, microphones, speakers and other devices may be installed in the storage space. Exemplarily, circuit boards may be provided in both the first shell 210 and the second shell 220, and the electrical connection between the devices in the two shells is realized through the circuit boards in the two shells; the battery for powering the device may be provided only in the first shell 210 or the second shell 220, or the battery may be provided in both the first shell 210 and the second shell 220; as for other devices such as camera modules, microphones, speakers, etc., they may be centrally provided in the first shell 210 or the second shell 220, or some devices may be provided in the first shell 210 and some devices may be provided in the second shell 220.

[0108] Continue to refer to Figure 4 In the housing assembly 200 of the foldable electronic device, both the first housing 210 and the second housing 220 may include a middle frame 201, and the first area 101 and the second area 103 of the foldable screen 100a may be supported on the front of the corresponding middle frame 201. For an external foldable electronic device or an internal foldable electronic device without an additional straight screen 100b, both the first housing 210 and the second housing 220 of the electronic device 1 may further include a back cover 202, and the back cover 202 is connected to a side surface of the middle frame 201 away from the foldable screen 100a; for an internal foldable electronic device with an additional straight screen 100b, one of the first housing 210 and the second housing 220 may not include the back cover 202, but instead install the straight screen 100b on the back of the middle frame 201.

[0109] In the first shell 210 and the second shell 220, the middle frame 201 and the back cover 202 (or the straight screen 100b) together form a receiving cavity, and the receiving cavity is used to install the aforementioned circuit board, battery, camera module, microphone, speaker and other devices.

[0110] Figure 5 It is a structural schematic diagram of a folding screen in the related art. Figure 6 for Figure 5 The decomposition diagram of the folding screen in . Figure 5 or Figure 6 As shown, in the related art, the folding screen 300 generally includes a display module 310, a cover plate 320, a support plate 330 and an adhesive layer 340. The display module 310 is used to display image information. The cover plate 320 is located on the front of the folding screen 300, covering the display module 310, and is used to protect the structural layers thereunder (including the display module 310). The support plate 330 is located on the back of the folding screen 300, and is used to support the structural layers thereon. The adhesive layer 340 is located between the display module 310 and the support plate 330, and the adhesive layer 340 is, for example, an adhesive foam to achieve the connection between the display module 310 and the support plate 330.

[0111] The support plate 330 may be a metal plate, for example, the support plate 330 is a steel plate. The portion of the support plate 330 corresponding to the bendable area of ​​the folding screen 300 may be a hollow structure, and the portion of the support plate 330 corresponding to the first area and the second area of ​​the folding screen 300 may be a solid structure, so that the support plate 330 can bend and deform the portion of the support plate 330 corresponding to the bendable area on the basis of playing a supporting role, so as to realize the switching of the folding screen 300 between the unfolded state and the folded state. Exemplarily, the portion of the support plate 330 corresponding to the bendable area may include a plurality of connecting strips 331 arranged in sequence, and adjacent connecting strips 331 are connected by an elastic structure, and each connecting strip 331 can move with the unfolding or folding of the folding screen 300.

[0112] Among them, refer to Figure 5 or Figure 6 As shown, the display module 310 may include a display encapsulation layer 311 and a base layer 312. The display encapsulation layer 311 is a core functional layer of the display module 310, and is used to realize the function of the display module 310 to display image information. The base layer 312 is used to support the display encapsulation layer 311 and serve as a formation basis for the display encapsulation layer 311, so as to form the display encapsulation layer 311 on the base layer 312. Exemplarily, the base layer 312 may be a polyimide (PI) layer.

[0113] In addition, refer to Figure 6As shown, in order to enhance the tensile strength of the folding screen 300, in the related art, a flexible glass layer 350 and a base layer 360 may be further provided between the cover plate 320 and the display module 310. The base layer 360 is provided on the display module 310. The base layer 360 is generally a plastic layer, and the flexible glass layer 350 is supported on the base layer 360. The flexible glass layer 350 is thin and easy to bend, which can meet the requirements of repeated folding and unfolding of the folding screen 300. In addition, the flexible glass layer 350 has high hardness, which can enhance the tensile strength of the folding screen 300, maintain the flatness of the folding screen 300, and help improve the folding marks of the folding screen 300. The mechanical properties of the flexible glass layer 350 are poor. By providing the base layer 360, the impact resistance of the flexible glass layer 350 can be enhanced, and the stability and reliability of the folding screen 300 can be improved.

[0114] However, the entire flexible glass layer 350 is easy to bend and cannot effectively reduce the tensile deformation of the folding screen 300. During long-term use, the folding screen 300 will still have obvious creases, which affects the appearance of the folding screen 300 and leads to a poor user experience of the foldable electronic device. In addition, since the thickness of the flexible glass layer 350 is very thin, the mechanical properties and impact resistance of the entire flexible glass layer 350 are poor, which can easily cause the folding screen 300 to have film fractures, delamination and other problems, affecting the service life of the folding screen 300.

[0115] In view of this, the embodiment of the present application improves the structure of the folding screen, and the folding screen includes a display module, and the two sides of the display module in the thickness direction are respectively the first side and the second side. By setting a reinforcement layer on at least one of the first side of the display module and the second side of the display module, the reinforcement layer includes a substrate and a plurality of flexible glass parts, each of which is embedded in the substrate, each of which is spaced along the first direction, and each of which extends along the second direction perpendicular to the first direction and passes through both sides of the folding screen. By arranging a plurality of flexible glass parts at intervals in the substrate, each of which has a small width and high hardness, each of which has a smaller deformation amount and good tensile resistance, the tensile deformation of the folding screen can be reduced, the folding marks of the folding screen can be effectively improved, and the appearance of the folding screen and the user experience of the foldable electronic device can be improved. In addition, by embedding each flexible glass part in the substrate, the substrate can better absorb the deformation stress, enhance the integrity and consistency of the reinforcement layer, and extend the service life of the folding screen.

[0116] The folding screen of the embodiment of the present application is described in detail below.

[0117] Figure 7 A schematic diagram of the structure of a folding screen provided in an embodiment of the present application. Figure 8 A schematic diagram of the structure of another folding screen provided in an embodiment of the present application. Fig. 9A schematic diagram of the structure of a third folding screen provided in an embodiment of the present application.

[0118] Reference Figures 7 to 9 As shown in any one of the embodiments of the present application, the folding screen 100a includes a display module 110 and a reinforcement layer 120. For ease of explanation, the thickness direction ( Figures 7 to 9 The two sides of the display module 110 (in the Z direction) are respectively defined as the first side and the second side of the display module 110. The first side of the display module 110 corresponds to the display surface of the display module 110. In other words, the first side of the display module 110 is a side surface on which image information is displayed. The second side of the display module 110 is the back side of the display module 110. The reinforcing layer 120 is disposed on at least one of the first side of the display module 110 and the second side of the display module 110.

[0119] The display module 110 includes a display layer 111 and a substrate layer 112. The display layer 111 is the core functional layer of the display module 110. The display layer 111 may have a plurality of pixel units arranged in an array, and the display layer 111 may be provided with a driving circuit and a thin film transistor (TFT). The thin film transistor and the driving circuit control each pixel unit to realize the function of the display module 110 to display image information. The substrate layer 112 is used to support the display layer 111, and can also serve as the formation basis of the display layer 111. The display layer 111 can be formed on the substrate layer 112. Exemplarily, the substrate layer 112 can be made of polyimide (PI).

[0120] For the reinforcement layer 120 disposed on at least one side of the display module 110, the reinforcement layer 120 on at least one side may include a substrate 121 and a plurality of flexible glass portions 122, wherein the substrate 121 serves as a bearing base for the flexible glass portions 122, and each flexible glass portion 122 is embedded in the substrate 121 to form an integral reinforcement layer 120. The substrate 121 is made of, for example, polyimide, and the flexible glass portion 122 is made of ultra-thin flexible glass (UTG).

[0121] That is, when the reinforcing layer 120 is disposed on only one side of the display module 110, the reinforcing layer 120 includes a substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121. When the reinforcing layer 120 is disposed on both sides of the display module 110, the reinforcing layers 120 on both sides of the display module 110 include the substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121; or, one of the reinforcing layer 120 on the first side of the display module 110 and the reinforcing layer 120 on the second side of the display module 110 includes the substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121, and the other includes the substrate 121 and a flexible glass layer 123a stacked on the substrate 121.

[0122] When the reinforcing layer 120 includes a substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121, each flexible glass portion 122 is disposed along a first direction ( Figures 7 to 9 The flexible glass portions 122 are arranged in a spaced relationship along the second direction ( Figures 7 to 9 The second direction extends in the Y direction shown in the figure, the second direction is perpendicular to the first direction, and the flexible glass portion 122 passes through the opposite sides of the folding screen 100a in the second direction.

[0123] As mentioned above, the first direction is the arrangement direction of the first area 101, the bendable area 102, and the second area 103 of the folding screen 100a, and the second direction is the extension direction of the rotation axis, or in other words, the second direction is the extension direction of the folding axis of the folding screen 100a. By arranging the flexible glass parts 122 in sequence along the first direction and extending the flexible glass parts 122 along the second direction, the flexible glass parts 122 conform to the folding method of the folding screen 100a and will not hinder the folding and unfolding of the folding screen 100a.

[0124] By arranging multiple flexible glass parts 122 at intervals along the first direction, the hardness of the flexible glass parts 122 is high, and the width of each flexible glass part 122 (in the first direction) is small, which can improve the deformation resistance of each flexible glass part 122. During the long-term use of the folding screen 100a, the folding screen 100a is repeatedly folded and unfolded, and the deformation of the flexible glass part 122 is smaller, and the tensile resistance is better, which can improve the flatness of the reinforcement layer 120, and then improve the overall flatness of the folding screen 100a. Reducing the tensile deformation of the folding screen 100a, especially at the junction of the bendable area 102 of the folding screen 100a and the first area 101 and the second area 103, can effectively improve the crease of the folding screen 100a, improve the appearance of the folding screen 100a, and enhance the user experience of the foldable electronic device 10.

[0125] Furthermore, by embedding each flexible glass portion 122 in the base 121, the flexible glass portion 122 and the base 121 together form an integral reinforcement layer 120, thereby enhancing the integrity and consistency of the reinforcement layer 120. During the transition of the folding screen 100a between the folded state and the unfolded state, the base 121 can absorb the stress generated by the deformation of the folding screen 100a, and reduce the influence of the stress on the flexible glass portion 122. Thus, problems such as film fracture and delamination of the folding screen 100a can be improved or even avoided, thereby improving the reliability of the folding screen 100a and extending the service life of the folding screen 100a.

[0126] Reference Figure 7 or Figure 8 As shown, in some embodiments, only one reinforcement layer 120 may be provided in the folding screen 100a, and the reinforcement layer 120 includes a base 121 and a plurality of flexible glass portions 122 embedded in the base 121. Figure 7 As shown, the reinforcement layer 120 can be disposed on the first side of the display module 110. In other words, the reinforcement layer 120 is disposed on the display side of the display module 110, and the reinforcement layer 120 is close to the front side of the folding screen 100a. Figure 8 As shown, the reinforcement layer 120 may also be disposed on the second side of the display module 110 . In other words, the reinforcement layer 120 is disposed on the back side of the display module 110 , and the reinforcement layer 120 is close to the back side of the folding screen 100 a .

[0127] When a reinforcing layer 120 is provided in the folding screen 100a, no matter the reinforcing layer 120 is provided close to the front side of the folding screen 100a or the reinforcing layer 120 is provided close to the back side of the folding screen 100a, the reinforcing layer 120 can play an anti-stretching role, reduce the tensile deformation of the folding screen 100a, improve the crease of the folding screen 100a, and enhance the appearance of the folding screen 100a, which will not be elaborated here.

[0128] Taking the folding screen 100a applied to an inward-folding electronic device as an example, when the inward-folding electronic device is in a folded state, the front of the first area 101 and the front of the second area 103 of the folding screen 100a are relatively close; at this time, when the reinforcing layer 120 is arranged close to the back of the folding screen 100a, the tensile resistance of the reinforcing layer 120 is transmitted to more structural layers, and the tensile resistance of the folding screen 100a is better. Taking the folding screen 100a applied to an outward-folding electronic device as an example, when the outward-folding electronic device is in a folded state, the back of the first area 101 and the back of the second area 103 of the folding screen 100a are relatively close; at this time, when the reinforcing layer 120 is arranged close to the front of the folding screen 100a, the tensile resistance of the reinforcing layer 120 is transmitted to more structural layers, and the tensile resistance of the folding screen 100a is better.

[0129] Reference Fig. 9As shown, in other embodiments, two reinforcement layers 120 may be provided in the folding screen 100a. For the convenience of explanation, the two reinforcement layers 120 are respectively defined as a first reinforcement layer 120a and a second reinforcement layer 120b. The first reinforcement layer 120a is located on the first side of the display module 110, or in other words, the first reinforcement layer 120a is disposed close to the front of the folding screen 100a. The second reinforcement layer 120b is located on the second side of the display module 110, or in other words, the second reinforcement layer 120b is disposed close to the back of the folding screen 100a. At least one of the first reinforcement layer 120a and the second reinforcement layer 120b includes a substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121.

[0130] By providing a reinforcing layer 120 on both the first side of the display module 110 and the second side of the display module 110, the reinforcing layers 120 on both the upper and lower sides play an anti-stretching role. By restraining the display module 110 by the reinforcing layers 120 on the upper and lower sides, the stability of the display module 110 can be enhanced, thereby enhancing the overall anti-stretching performance of the folding screen 100a. In addition, the flexible glass portion 122 in the reinforcing layers 120 on the upper and lower sides can be matched and designed according to the folding method of the folding screen 100a to enhance the anti-creep effect of the reinforcing layer 120. Furthermore, the effect of the folding screen 100a in resisting tensile deformation is enhanced, and the creases of the folding screen 100a can be weakened or even eliminated, so that the appearance of the folding screen 100a is better and the user experience of the foldable electronic device 10 is better.

[0131] Exemplarily, both the first reinforcement layer 120a and the second reinforcement layer 120b can be directly connected to the display module 110, or in other words, no other structural layer is provided between the display module 110 and the first reinforcement layer 120a, and between the display module 110 and the second reinforcement layer 120b, and the first reinforcement layer 120a and the second reinforcement layer 120b are respectively attached to the two side surfaces of the display module 110. In this way, the first reinforcement layer 120a and the second reinforcement layer 120b have a stronger restraining effect on the display module 110, which can enhance the stability of the display module 110, improve the stability of the folding screen 100a, and reduce or even eliminate the folding marks of the folding screen 100a. For example, the first reinforcement layer 120a can be bonded to the display surface of the display module 110, and the second reinforcement layer 120b can be bonded to the back of the display module 110.

[0132] Reference Figures 7 to 9As shown in any one of the figures, the folding screen 100a may also include a protective layer 130, which is located on the front of the folding screen 100a and is used to protect the folding screen 100a to prevent the structural layer located thereunder from being damaged, for example, to prevent the display module 110 from being worn or scratched. In addition, the protective layer 130 can enhance the overall structural strength of the folding screen 100a and ensure the reliability of the folding screen 100a. Exemplarily, the protective layer 130 can be made of polyimide (PI).

[0133] Among them, refer to Figure 7 or Fig. 9 As shown, when the first side of the display module 110 is provided with a reinforcement layer 120, the protective layer 130 may cover the reinforcement layer 120 on the first side of the display module 110. For example, the protective layer 130 is bonded to the reinforcement layer 120 by adhesive. Figure 8 As shown, when the reinforcing layer 120 is not disposed on the first side of the display module 110 , the protective layer 130 may directly cover the display module 110 , for example, the protective layer 130 is bonded to the display module 110 by adhesive.

[0134] Reference Figures 7 to 9 As shown in any one of the figures, the folding screen 100a may further include a support plate 140, which is located on the back of the folding screen 100a. The support plate 140 is used to support the structural layer located thereon to ensure the overall structural strength and reliability of the folding screen 100a. The support plate 140 may be a metal plate, for example, the support plate 140 is a steel plate.

[0135] Among them, the support plate 140 may include a non-deformable portion 142 and a deformable portion 141, the deformable portion 141 is located in the middle area of ​​the support plate 140, and the non-deformable portion 142 is connected to both sides of the deformable portion 141. The deformable portion 141 corresponds to the bendable area 102 of the folding screen 100a, and the non-deformable portions 142 on both sides correspond to the first area 101 and the second area 103 of the folding screen 100a respectively. The non-deformable portion 142 of the support plate 140 cannot be deformed, which can ensure the flatness of the first area 101 and the second area 103 of the folding screen 100a. The deformable portion 141 of the support plate 140 can be deformed to meet the bending requirements of the bendable area 102 of the folding screen 100a.

[0136] The non-deformable portion 142 of the support plate 140 may be a solid structure. The deformable portion 141 of the support plate 140 may include, for example, a plurality of support bars 1411, which are arranged along a first direction ( Figures 7 to 9The support bars 1411 are arranged in sequence in the X direction shown in the figure, and adjacent support bars 1411 can be connected by an elastic structure (or a retractable structure). Each support bar 1411 can move with the bending of the bendable area 102 of the folding screen 100a to realize the switching of the folding screen 100a between the unfolded state and the folded state.

[0137] Among them, refer to Figure 7 As shown, when the reinforcing layer 120 is not disposed on the second side of the display module 110, the support plate 140 may be connected to the display module 110, for example, the support plate 140 and the display module 110 are bonded by adhesive or adhesive foam. Figure 8 or Fig. 9 As shown, when the second side of the display module 110 is provided with a reinforcement layer 120 , the support plate 140 may be connected to the reinforcement layer 120 , for example, the support plate 140 and the reinforcement layer 120 are connected by adhesive or adhesive foam.

[0138] It should be noted that compared to the outward-folding electronic device, the deformation amplitude of the folding screen 100a of the inward-folding electronic device is larger during the transition between the unfolded state and the folded state. For example, when the inward-folding electronic device is in the folded state, the folding screen 100a is in the shape of a "water drop". Therefore, compared to the folding screen 100a of the outward-folding electronic device, the tensile deformation of the folding screen 100a of the inward-folding electronic device is larger, and the crease of the folding screen 100a is obvious, and an anti-stretching design is particularly required. In this regard, the reinforcement layer 120 in the folding screen 100a is described in detail below, taking the application of the folding screen 100a to the inward-folding electronic device as an example.

[0139] Fig.10 A schematic diagram of the structure of a reinforcement layer provided in an embodiment of the present application. Fig.11 A schematic diagram of the structure of another reinforcement layer provided in an embodiment of the present application. Fig.12 A schematic diagram of the structure of the third reinforcement layer provided in an embodiment of the present application. Fig.13 A schematic diagram of the structure of the fourth reinforcement layer provided in an embodiment of the present application.

[0140] Reference Figures 10 to 13 As shown in any one of the figures, the reinforcing layer 120 shown in the figure includes a substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121. When the folding screen 100a is applied to an inward-folding electronic device, when the folding screen 100a is converted from an unfolded state to a folded state, the front of the folding screen 100a gradually approaches to a relative stack. For the reinforcing layer 120, the flexible glass portion 122 is arranged close to the first surface of the reinforcing layer 120 (the side surface of the reinforcing layer 120 facing the front of the folding screen 100a). When the folding screen 100a is bent, the flexible glass portions 122 in the reinforcing layer 120 are closer, and the flexible glass portions 122 can better play an anti-stretching role.

[0141] Therefore, in this embodiment, among the flexible glass portions 122 in the reinforcement layer 120, at least part of the flexible glass portions 122 can be located on the first surface of the reinforcement layer 120. In this way, the tensile resistance of the reinforcement layer 120 can be improved, and the folding screen 100a can better resist tensile deformation. Therefore, the creases of the folding screen 100a can be better reduced or even eliminated, and the appearance of the folding screen 100a can be improved.

[0142] Reference Fig.10 As shown, in some embodiments, each flexible glass portion 122 in the reinforcing layer 120 can be arranged on the first surface of the reinforcing layer 120. On the one hand, each flexible glass portion 122 located on the first surface of the reinforcing layer 120 can play a good anti-stretching role, and the bendable area 102 and the first area 101 and the second area 103 of the folding screen 100a all have a good anti-stretching effect. On the other hand, since all the flexible glass portions 122 are exposed on the first surface of the reinforcing layer 120, it is convenient to connect each flexible glass portion 122 to the substrate 121, which can improve the manufacturing efficiency of the reinforcing layer 120. For example, a whole layer of substrate 121 can be provided first, and then a plurality of grooves can be opened on the first surface of the substrate 121, and then each flexible glass portion 122 can be connected in each groove.

[0143] Reference Fig.11 or Fig.12 As shown, in other embodiments, in the reinforcing layer 120, the flexible glass portion 122 located in the bendable area 102 can be away from the front of the folding screen 100a, and the flexible glass portion 122 located in the first area 101 and the flexible glass portion 122 located in the second area 103 can be close to the front of the folding screen 100a. In this way, when the folding screen 100a is bent, each flexible glass portion 122 in the reinforcing layer 120 conforms to the bending trend of the folding screen 100a. For example, when the folding screen 100a is folded into a teardrop shape, each flexible glass portion 122 in the reinforcing layer 120 is also folded into a teardrop shape. In addition, the overall bending degree of all the flexible glass portions 122 in the reinforcing layer 120 is greater than the overall bending degree of the folding screen 100a, the tensile resistance of the reinforcing layer 120 is stronger, and the folding screen 100a has a better effect of resisting tensile deformation, which can better weaken or even eliminate the crease of the folding screen 100a.

[0144] Reference Fig.11 As shown, as an example, the flexible glass portion 122 located in the bendable zone 102 can be located in the middle area of ​​the reinforcement layer 120 (in the thickness direction), among all the flexible glass portions 122 located in the first zone 101 and all the flexible glass portions 122 located in the second zone 103, at least part of the flexible glass portion 122 is located on the first surface of the reinforcement layer 120.

[0145] For example, Fig.11 As shown in , in the bendable area 102, the distance between the flexible glass portion 122 and the first surface of the reinforcement layer 120 is d1, and the distance between the flexible glass portion 122 and the second surface of the reinforcement layer 120 (the side surface of the reinforcement layer 120 facing away from the front of the folding screen 100a) is d2, and d1 and d2 can be equal, or d1 can be greater than d2. Limited by the overall thickness of the reinforcement layer 120, in the first area 101 and the second area 103, all the flexible glass portions 122 can be located on the first surface of the reinforcement layer 120; or, the flexible glass portions 122 close to the bendable area 102 are located in the middle area of ​​the reinforcement layer 120 (in the thickness direction), and the flexible glass portions 122 close to the two side edges of the folding screen 100a are located on the first surface of the reinforcement layer 120, so that the arrangement structure of each flexible glass portion 122 conforms to the bending trend of the folding screen 100a.

[0146] Reference Fig.12 As shown, as another example, the flexible glass portion 122 located in the bendable area 102 can be located on the second surface of the reinforcing layer 120, and among the flexible glass portion 122 located in the first area 101 and all the flexible glass portions 122 located in the second area 103, at least part of the flexible glass portion 122 is located on the first surface of the reinforcing layer 120. In this way, the step difference between the flexible glass portion 122 in the bendable area 102 and the flexible glass portion 122 in the first area 101, and between the flexible glass portion 122 in the bendable area 102 and the flexible glass portion 122 in the second area 103 is larger. When the folding screen 100a is bent, the overall bending degree of all the flexible glass portions 122 in the reinforcing layer 120 is greater. The reinforcing layer 120 has a better tensile resistance, the reinforcing layer 120 has a stronger restraining effect on the display module 110, and the folding screen 100a has a better effect of resisting tensile deformation, which can better reduce or even eliminate the crease of the folding screen 100a.

[0147] When the flexible glass portion 122 of the bendable area 102 is away from the front of the folding screen 100a, and the flexible glass portion 122 located in the first area 101 and the flexible glass portion 122 located in the second area 103 are close to the front of the folding screen 100a, the flexible glass portion 122 gradually approaches the front of the folding screen 100a in the direction from the bendable area 102 to the first area 101 and in the direction from the bendable area 102 to the second area 103 (see Fig.12 As shown). With such arrangement, from the bendable area 102 of the folding screen 100a to the first area 101 and the second area 103 on both sides, the flexible glass parts 122 are arranged regularly, and the strengthening layer 120 has a more balanced and consistent anti-tensile effect on the folding screen 100a as a whole, and the folding screen 100a has better uniformity and consistency in resisting tensile deformation as a whole, which helps to improve the flatness of the folding screen 100a.

[0148] Exemplarily, in the folding screen 100a, the flexible glass portion 122 of the bendable area 102 can be located on the second surface of the reinforcing layer 120. In the direction from the bendable area 102 to the first area 101 and in the direction from the bendable area 102 to the second area 103, the flexible glass portion 122 gradually approaches the front side of the folding screen 100a. The flexible glass portion 122 near the two side edges of the folding screen 100a is located on the first surface of the reinforcing layer 120.

[0149] Reference Figures 10 to 12 As shown in any one, whether all the flexible glass parts 122 are located on the first surface of the reinforcing layer 120, or the flexible glass parts 122 of the bendable area 102 are far away from the front of the folding screen 100a, and the flexible glass parts 122 of the first area 101 and the second area 103 are close to the front of the folding screen 100a, the widths of the flexible glass parts 122 in the reinforcing layer 120 can be equal. In this way, the tensile strength of each flexible glass part 122 is relatively uniform, the uniformity and consistency of the overall reinforcing layer 120 are better, and the overall tensile strength of the reinforcing layer 120 is more balanced and consistent. In addition, it is easy to process and manufacture each flexible glass part 122, which helps to improve the manufacturing efficiency of the reinforcing layer 120.

[0150] On the basis that the widths of the flexible glass parts 122 are equal, the spacing between each two adjacent flexible glass parts 122 can be equal. In other words, the flexible glass parts 122 are evenly spaced in the reinforcing layer 120. In this way, the tensile strength of each area in the reinforcing layer 120 is relatively uniform, which has a more balanced tensile strength effect on the folding screen 100a as a whole. The tensile strength of the first area 101 and the second area 103 of the folding screen 100a is relatively balanced, which can reduce the internal stress of the folding screen 100a as a whole and improve the flatness of the folding screen 100a as a whole.

[0151] Reference Fig.13 As shown, in some embodiments, the widths of the flexible glass portions 122 in the reinforcing layer 120 may be differently designed, the width of the flexible glass portion 122 in the bendable region 102 may be larger, and the widths of the flexible glass portion 122 in the first region 101 and the flexible glass portion 122 in the second region 103 may be smaller. In other words, the width M1 of the flexible glass portion 122 in the bendable region 102 may be greater than the width M2 of the flexible glass portion 122 in the first region 101 and the second region 103.

[0152] By increasing the width of the flexible glass portion 122 of the bendable area 102, the tensile strength of the reinforcing layer 120 in the bendable area 102 can be enhanced, thereby enhancing the tensile strength of the bendable area 102 of the folding screen 100a, and improving the flatness of the bendable area 102 and the surrounding area of ​​the folding screen 100a. For the creases that mainly appear at the boundary between the bendable area 102 and the first area 101 and the second area 103, by improving the flatness of the bendable area 102 of the folding screen 100a and the surrounding area, the creases of the folding screen 100a can be weakened or even eliminated, thereby improving the appearance of the folding screen 100a.

[0153] By maintaining the flexible glass portion 122 of the first area 101 and the flexible glass portion 122 of the second area 103 at a relatively small width, it is advantageous to maintain the high hardness of the flexible glass portion 122 in the first area 101 and the second area 103, reduce the deformation of the flexible glass portion 122 in the first area 101 and the second area 103, and enhance the tensile resistance of the reinforcing layer 120. In addition, the tensile deformation of the first area 101 and the second area 103 is reduced, and the influence of the first area 101 and the second area 103 on the bendable area 102 is reduced, thereby improving the flatness of the folding screen 100a, and improving or even eliminating the crease of the folding screen 100a.

[0154] When the width of the flexible glass portion 122 of the bendable area 102 is greater than the width of the flexible glass portion 122 of the first area 101 and the second area 103, the flexible glass portion 122 of the bendable area 102 may be located in the middle area (in the thickness direction) of the reinforcing layer 120 (see Fig.13 ), or the flexible glass portion 122 of the bendable area 102 may also be located on the first surface of the reinforcement layer 120. Since the width of the flexible glass portion 122 of the bendable area 102 is large, the flexible glass portion 122 of the bendable area 102 occupies a large space, and therefore, the number of the flexible glass portions 122 in the first area 101 and the second area 103 is smaller and the distance from the center of the folding screen 100a is farther. In this regard, in the first area 101 and the second area 103, all the flexible glass portions 122 may be located on the first surface of the reinforcement layer 120 (see Fig.13 ), or, the flexible glass portion 122 close to the bendable area 102 is located in the middle area of ​​the reinforcement layer 120 (in the thickness direction), and the flexible glass portion 122 away from the bendable area 102 is located on the first surface of the reinforcement layer 120.

[0155] Regardless of whether the flexible glass portion 122 is located on the surface of the reinforcing layer 120, or the flexible glass portion 122 is located in the middle area of ​​the reinforcing layer 120 (in the thickness direction), in this embodiment, the thickness of each flexible glass portion 122 in the reinforcing layer 120 can be kept consistent. Among them, the ratio of the thickness of the flexible glass portion 122 to the total thickness of the reinforcing layer 120 is ≥ 1 / 2, or in other words, the thickness of the flexible glass portion 122 is ≥ 1 / 2 of the total thickness of the reinforcing layer 120. In this way, the thickness space occupied by the flexible glass portion 122 in the reinforcing layer 120 is relatively large, which can ensure that the flexible glass portion 122 effectively plays an anti-stretching role, and ensure that the reinforcing layer 120 has a good anti-stretching effect, thereby effectively reducing the tensile deformation of the folding screen 100a, improving the flatness of the folding screen 100a, and improving or even eliminating the crease of the folding screen 100a.

[0156] The following describes in detail the design of the first reinforcement layer 120a and the second reinforcement layer 120b when the reinforcement layer 120 in the folding screen 100a includes the aforementioned first reinforcement layer 120a and the second reinforcement layer 120b.

[0157] Fig.14 A schematic diagram of a first structure of a first reinforcement layer and a second reinforcement layer provided in an embodiment of the present application. Fig.15 A second structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application. Fig.16 A third structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application. Fig.17 A fourth structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application. Fig.18 A fifth structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application. Fig.19 A sixth structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application. Fig. 20 A seventh structural schematic diagram of the first reinforcement layer and the second reinforcement layer provided in an embodiment of the present application.

[0158] Reference Figures 14 to 20 As shown, these figures exemplarily show several different design structures of the first reinforcement layer 120a and the second reinforcement layer 120b. It should be noted that these figures only show part of the design structure of the first reinforcement layer 120a and the second reinforcement layer 120b. In addition to these illustrations, the first reinforcement layer 120a and the second reinforcement layer 120b may also include other design structures.

[0159] Among them, refer to Figures 14 to 18As shown, in some embodiments, the first reinforcement layer 120a and the second reinforcement layer 120b may each include a substrate 121 and a plurality of flexible glass portions 122 embedded in the substrate 121. For ease of description, in this embodiment, the substrate 121 of the first reinforcement layer 120a is defined as the first substrate 121a, and the flexible glass portion 122 of the first reinforcement layer 120a is defined as the first flexible glass portion 122a. In other words, the first reinforcement layer 120a includes the first substrate 121a and the plurality of first flexible glass portions 122a embedded in the first substrate 121a. Correspondingly, in this embodiment, the substrate 121 of the second reinforcement layer 120b is defined as the second substrate 121b, and the flexible glass portion 122 of the second reinforcement layer 120b is defined as the second flexible glass portion 122b. In other words, the second reinforcement layer 120b includes the second substrate 121b and the plurality of second flexible glass portions 122b embedded in the second substrate 121b.

[0160] Since the first reinforcement layer 120a is disposed on the first side of the display module 110, the first reinforcement layer 120a is close to the front of the folding screen 100a. The first reinforcement layer 120a has fewer structural layers that are effective in resisting tensile properties. The first reinforcement layer 120a is mainly used to restrain the protective layer 130 located thereon, and the protective layer 130 itself has a weak effect on the fold of the folding screen 100a. Therefore, the first reinforcement layer 120a can be designed to be regular, and all the first flexible glass portions 122a in the first reinforcement layer 120a can be located on the first surface of the first reinforcement layer 120a.

[0161] In this way, the first surface of the first reinforcing layer 120a has a strong tensile resistance. When the folding screen 100a is in a folded state, the first reinforcing layer 120a has a reinforcing binding effect on the folding screen 100a, and the force of the first reinforcing layer 120a on each area of ​​the folding screen 100a is relatively balanced, which can improve the flatness of the folding screen 100a. In addition, it is convenient to connect each first flexible glass part 122a to the base 121, which can improve the production efficiency of the first reinforcing layer 120a.

[0162] Furthermore, the widths of the first flexible glass portions 122a in the first reinforcement layer 120a may be equal, and the spacing between each two adjacent first flexible glass portions 122a may also be equal. Thus, the first reinforcement layer 120a has better balance and consistency, and the overall tensile strength of the first reinforcement layer 120a is more balanced, which is beneficial to improving the overall tensile strength of the folding screen 100a, improving the flatness of the folding screen 100a, and reducing or even eliminating the creases of the folding screen 100a. From the processing and manufacturing aspect of the first reinforcement layer 120a, it is convenient for the design and processing of the first substrate 121a, and also convenient for the corresponding connection of each first flexible glass portion 122a with the first substrate 121a, which is beneficial to improving the manufacturing efficiency of the first reinforcement layer 120a.

[0163] For ease of description, in this embodiment, the width of the first flexible glass portion 122 a is defined as a first width, and the interval between adjacent first flexible glass portions 122 a is defined as a first interval.

[0164] Reference Figures 14 to 17 As shown in any one, as an implementation mode, on the basis that the widths of the first flexible glass parts 122a in the first reinforcement layer 120a are equal and the spacings between each adjacent first flexible glass part 122a are equal, the widths of the second flexible glass parts 122b in the second reinforcement layer 120b are equal and the spacings between each adjacent second flexible glass part 122b are also equal. With such a configuration, the balance and consistency of the second reinforcement layer 120b are also better, and the overall tensile resistance of the second reinforcement layer 120b is also more balanced, which is beneficial to improving the overall tensile resistance of the folding screen 100a, improving the flatness of the folding screen 100a, and facilitating the design and processing of the second reinforcement layer 120b.

[0165] For ease of description, in this embodiment, the width of the second flexible glass portion 122 b is defined as a second width, and the interval between adjacent second flexible glass portions 122 b is defined as a second interval.

[0166] Reference Fig.14 As shown, in the first example, the second reinforcing layer 120b can be designed in the same manner as the first reinforcing layer 120a, and the width of the second flexible glass portion 122b can be equal to the width of the first flexible glass portion 122a, in other words, the second width can be equal to the first width. In addition, the spacing between adjacent second flexible glass portions 122b can be equal to the spacing between adjacent first flexible glass portions 122a, in other words, the second spacing can be equal to the first spacing. In this way, the tensile strength of the second reinforcing layer 120b is close to that of the first reinforcing layer 120a, and the stability of the display module 110 can be enhanced by the first reinforcing layer 120a and the second reinforcing layer 120b restraining the display module 110.

[0167] Furthermore, the orthographic projections of each first flexible glass portion 122a in the first reinforcement layer 120a on the second reinforcement layer 120b completely overlap with each second flexible glass portion 122b. In other words, each second flexible glass portion 122b in the second reinforcement layer 120b is directly opposite to each first flexible glass portion 122a in the first reinforcement layer 120a, and the structure of the second reinforcement layer 120b can be completely consistent with the structure of the first reinforcement layer 120a. In this way, the first reinforcement layer 120a and the second reinforcement layer 120b have good consistency, which is beneficial to improving the stability and reliability of the folding screen 100a. Moreover, it is convenient for the processing and production of the first reinforcement layer 120a and the second reinforcement layer 120b, which can improve the production efficiency of the folding screen 100a.

[0168] For example, Fig.14 As shown in , each first flexible glass portion 122a in the first reinforcement layer 120a and each second flexible glass portion 122b in the second reinforcement layer 120b maintains a relatively small width, and the width of the first flexible glass portion 122a and the width of the second flexible glass portion 122b are both L0, in other words, the first width and the second width are both L0. In addition, the spacing between adjacent first flexible glass portions 122a and the spacing between adjacent second flexible glass portions 122b are both D0, in other words, the first spacing and the second spacing are both D0, and each first flexible glass portion 122a and each second flexible glass portion 122b are directly opposite to each other. Exemplarily, the first width (or second width) L0 may be equal to the first spacing (or second spacing) D0.

[0169] in addition, Fig.14 , each of the second flexible glass portions 122b in the second reinforcement layer 120b is located on the first surface of the second reinforcement layer 120b. Fig.11 or Fig.12 Similarly, the second flexible glass portion 122b in the second reinforcement layer 120b located in the bendable area 102 can be away from the front of the folding screen 100a, and the arrangement structure of each second flexible glass portion 122b in the second reinforcement layer 120b conforms to the bending trend of the folding screen 100a. Among them, in the flexible glass portion 122 in the first area 101 and the second area 103 in the second reinforcement layer 120b, all the second flexible glass portions 122b can be located on the first surface of the second reinforcement layer 120b, or the second flexible glass portion 122b close to the bendable area 102 is located in the middle area of ​​the second reinforcement layer 120b (thickness direction), which will not be repeated here.

[0170] Reference Figures 15 to 17 As shown in any one, in the second example, the width of each first flexible glass portion 122a in the first reinforcement layer 120a can be increased so that the width of the first flexible glass portion 122a is greater than the width of the second flexible glass portion 122b. In other words, the first width is greater than the second width. In this way, the tensile strength of the first reinforcement layer 120a can be enhanced, and the first reinforcement layer 120a has a stronger restraining effect on the display module 110 located below it and the protective layer 130 located above it, thereby improving the overall tensile resistance of the folding screen 100a, improving the flatness of the folding screen 100a, and reducing or even eliminating the crease of the folding screen 100a.

[0171] Since the width of each first flexible glass portion 122a in the first reinforcing layer 120a is increased, the hardness of the portion where the first flexible glass portion 122a is located is higher. In order to make the first reinforcing layer 120a more balanced and consistent as a whole, the spacing between adjacent first flexible glass portions 122a can be reduced. In other words, the first spacing can be made less than or equal to the second spacing, so that a smaller spacing is maintained between adjacent first flexible glass portions 122a, so as to avoid excessive performance differences between different regions of the first reinforcing layer 120a.

[0172] For example, Figures 15 to 17 As shown in any one of the figures, each second flexible glass portion 122b in the second reinforcement layer 120b can maintain a relatively small width, the second width is still L0, and the spacing between adjacent second flexible glass portions 122b is still D0, in other words, the second spacing is still D0. The width of each first flexible glass portion 122a in the first reinforcement layer 120a can be L1, and the spacing between adjacent first flexible glass portions 122a can be D1. The first width L1 is greater than the second width L0, and the first spacing D1 is less than the second spacing D0.

[0173] in, Fig.15 1 shows a method in which each second flexible glass portion 122b in the second reinforcement layer 120b is located on the first surface of the second reinforcement layer 120b. With such a configuration, the tensile strength of the second reinforcement layer 120b is relatively balanced, and each area of ​​the folding screen 100a has a good tensile strength. In addition, the processing and manufacturing of the second reinforcement layer 120b is facilitated.

[0174] Fig.16 and Fig.17 It is shown that the second flexible glass portion 122b located in the bendable area 102 of the second reinforcement layer 120b is away from the front of the folding screen 100a, and the arrangement structure of each second flexible glass portion 122b in the second reinforcement layer 120b conforms to the bending trend of the folding screen 100a. With this arrangement, the second reinforcement layer 120b has a stronger restraining effect on the folding screen 100a, and the overall tensile resistance of the folding screen 100a is better, which is more conducive to weakening or even eliminating the creases of the folding screen 100a. In the flexible glass portion 122 located in the first area 101 and the second area 103 of the second reinforcement layer 120b, all the second flexible glass portions 122b can be located on the first surface of the second reinforcement layer 120b (see Fig.16 ), or, the second flexible glass portion 122b close to the bendable region 102 is located in the middle region (in the thickness direction) of the second reinforcing layer 120b (see Fig.17 ), which will not be described here.

[0175] When the width of each first flexible glass portion 122a in the first reinforcement layer 120a is greater than the width of each second flexible glass portion 122b in the second reinforcement layer 120b, and the spacing between adjacent first flexible glass portions 122a is smaller than the spacing between adjacent second flexible glass portions 122b, in other words, when the first width is greater than the second width and the first spacing is smaller than the second width, the ratio of the first width to the second width and the ratio of the first spacing to the second spacing can be designed according to the shape and size of the water drop shape presented by the folding screen 100a in the folded state.

[0176] Reference Fig.18 As shown, as another embodiment, on the basis that the widths of the first flexible glass portions 122a in the first reinforcement layer 120a are equal and the spacings between each adjacent first flexible glass portion 122a are equal, the second flexible glass portions 122b in the second reinforcement layer 120b can be designed differently. Among them, in the second reinforcement layer 120b, the width of the second flexible glass portion 122b located in the bendable area 102 can be larger, and the width of the second flexible glass portion 122b located in the first area 101 and the second area 103 can be smaller. In other words, the width of the second flexible glass portion 122b in the bendable area 102 can be greater than the width of the flexible glass portion 122 in the first area 101 and the second area 103.

[0177] Such a configuration can enhance the tensile strength of the second reinforcement layer 120b in the bendable area 102, and through the joint action of the first reinforcement layer 120a and the second reinforcement layer 120b, enhance the tensile strength of the bendable area 102 of the folding screen 100a, and improve the flatness of the bendable area 102 of the folding screen 100a and the surrounding area. In addition, the overall tensile strength of the folding screen 100a is improved, the crease of the folding screen 100a is weakened or even eliminated, and the appearance of the folding screen 100a is improved.

[0178] As an example, Fig.18 As shown, the width of the second flexible glass portion 122b located in the bendable area 102 may be greater than the width of the first flexible glass portion 122a. In other words, the width of the second flexible glass portion 122b located in the bendable area 102 may be greater than the first width. In addition, the width of each first flexible glass portion 122a in the first reinforcement layer 120a may be increased so that the width of the second flexible glass portion 122b located in the first area 101 and the second area 103 is smaller than the width of the first flexible glass portion 122a. In other words, the width of the second flexible glass portion 122b located in the first area 101 and the second area 103 is smaller than the first width.

[0179] Furthermore, the intervals between every two adjacent second flexible glass portions 122 b may be equal, and the interval between adjacent second flexible glass portions 122 b may be greater than the interval between adjacent first flexible glass portions 122 a , or in other words, the second interval may be greater than the first interval.

[0180] For example, the width of the first flexible glass portion 122a may be L1, and the spacing between adjacent first flexible glass portions 122a may be D1, or in other words, the first width may be L1, and the first spacing may be D1. The width of the second flexible glass portion 122b located in the bendable region 102 may be L2, and the flexible glass portion 122 located in the first region 101 and the second region 103 may maintain a smaller width, and the width of the flexible glass portion 122 in the first region 101 and the second region 103 may be L0. The spacing between adjacent second flexible glass portions 122b may be D0, or in other words, the second spacing is D0, and D0 is greater than D1.

[0181] Reference Fig.19 or Fig. 20 As shown, in some other embodiments, the second reinforcement layer 120b may still include a second substrate 121b and a plurality of second flexible glass portions 122b embedded in the second substrate 121b, and the first reinforcement layer 120a may be different from the aforementioned first reinforcement layer 120a. The first reinforcement layer 120a may include a first substrate 121a and a whole layer of flexible glass layer 123a, and the flexible glass layer 123a is disposed on the first substrate 121a.

[0182] In this configuration, in the first reinforcement layer 120a, the flexible glass layer 123a covers the entire first substrate 121a, and the flexible glass layer 123a has a large coverage area and good tensile resistance, which can improve the tensile resistance of the first reinforcement layer 120a. Furthermore, under the joint action of the first reinforcement layer 120a and the second reinforcement layer 120b, the overall tensile resistance of the folding screen 100a can be enhanced, the flatness of the folding screen 100a can be improved, and the creases of the folding screen 100a can be weakened or even eliminated.

[0183] Among them, refer to Fig.19 As shown, in some examples, each second flexible glass portion 122b in the second reinforcement layer 120b can maintain a relatively small width, and the spacing between adjacent second flexible glass portions 122b can be equal. For example, the width of the second flexible glass portion 122b is still maintained at L0, and the spacing between adjacent second flexible glass portions 122b is still maintained at D0, or in other words, the second width is still L0, and the second spacing is still D0.

[0184] It should be understood that Fig.19The second flexible glass portion 122b of the bendable area 102 is shown to be away from the front of the folding screen 100a, and the arrangement structure of each second flexible glass portion 122b in the second reinforcement layer 120b conforms to the bending trend of the folding screen 100a. The second flexible glass portion 122b of the bendable area 102 in the figure is located on the second surface of the second reinforcement layer 120b. Of course, the second flexible glass portion 122b of the bendable area 102 can also be located in the middle area (thickness direction) of the second reinforcement layer 120b (refer to Fig.11 Alternatively, each second flexible glass portion 122b may be located on the first surface of the second reinforcement layer 120b (see Fig.10 As shown), no further description is given here.

[0185] Reference Fig. 20 As shown, in other examples, the width of at least part of the second flexible glass portion 122b in the second reinforcement layer 120b can be increased. As shown in the figure, the width of the second flexible glass portion 122b of the bendable zone 102 can be increased, for example, the width of the second flexible glass portion 122b of the bendable zone 102 can be increased to the aforementioned L2; at the same time, the widths of the flexible glass portions 122 of the first zone 101 and the second zone 103 can be consistent with the width of the second flexible glass portion 122b of the bendable zone 102, for example, the width of each second flexible glass portion 122b in the second reinforcement layer 120b is increased to L2. Moreover, in the figure, the second flexible glass portion 122b of the bendable zone 102 is located on the second surface of the second reinforcement layer 120b. Of course, the second flexible glass portion 122b of the bendable zone 102 can also be located in the middle area of ​​the second reinforcement layer 120b (in the thickness direction), or, each second flexible glass portion 122b can be located on the first surface of the second reinforcement layer 120b (refer to Fig.10 As shown), no further description is given here.

[0186] In other examples, only the width of the second flexible glass portion 122b of the bendable area 102 may be increased, while the second flexible glass portions 122b of the first area 101 and the second area 103 may still maintain a smaller width. For example, the width of the second flexible glass portion 122b of the bendable area 102 may be increased to L2, while the widths of the flexible glass portions 122 of the first area 101 and the second area 103 may be maintained at L0. This embodiment does not impose any specific limitation on this.

[0187] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0188] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

Claims

1. A folding screen, comprising a first area, a bendable area and a second area arranged in sequence along a first direction, It is characterized in that The folding screen comprises: A display module, wherein two sides in a thickness direction are respectively a first side and a second side, and the first side corresponds to a display surface of the display module; A reinforcing layer, disposed on at least one of the first side of the display module and the second side of the display module; Among them, the reinforcement layer on at least one side includes a base and multiple flexible glass parts, each of the flexible glass parts is embedded in the base; each of the flexible glass parts is arranged at intervals along the first direction, and each of the flexible glass parts extends along the second direction and passes through both sides of the folding screen, and the second direction is perpendicular to the first direction.

2. The folding screen according to claim 1, It is characterized in that The reinforcement layer includes a first reinforcement layer and a second reinforcement layer. The first reinforcement layer is located on a first side of the display module, and the second reinforcement layer is located on a second side of the display module.

3. The folding screen according to claim 2, It is characterized in that The first reinforcement layer and the second reinforcement layer are respectively attached to two side surfaces of the display module.

4. The folding screen according to any one of claims 1 to 3, It is characterized in that At least part of the flexible glass portion is located on the first surface of the reinforcement layer; wherein the first surface is a side surface of the reinforcement layer facing the front side of the folding screen.

5. The folding screen according to claim 4, It is characterized in that Each of the flexible glass parts is arranged on the first surface of the reinforcement layer.

6. The folding screen according to claim 4, It is characterized in that The flexible glass portion located in the bendable area is far away from the front side of the folding screen, and the flexible glass portion located in the first area and the flexible glass portion located in the second area are close to the front side of the folding screen.

7. The folding screen according to claim 6, It is characterized in that The flexible glass portion located in the bendable area is arranged on the second surface of the reinforcement layer; wherein the second surface is a side surface of the reinforcement layer facing away from the front side of the folding screen.

8. The folding screen according to claim 6, It is characterized in that From the bendable area to the first area and from the bendable area to the second area, the flexible glass portion gradually approaches the front side of the folding screen.

9. The folding screen according to any one of claims 1 to 3, It is characterized in that The distances between any two adjacent flexible glass parts are equal.

10. The folding screen according to any one of claims 1 to 3, It is characterized in that The widths of the flexible glass parts are all equal.

11. The folding screen according to any one of claims 1 to 3, It is characterized in that The width of the flexible glass portion located in the bendable area is greater than the width of the flexible glass portion located in the first area and the width of the flexible glass portion located in the second area.

12. The folding screen according to any one of claims 1 to 3, It is characterized in that The ratio of the thickness of the flexible glass portion to the total thickness of the strengthening layer is ≥ 1 / 2.

13. The folding screen according to claim 2 or 3, It is characterized in that The first reinforcement layer includes a first substrate and a plurality of first flexible glass portions embedded in the first substrate, and the second reinforcement layer includes a second substrate and a plurality of second flexible glass portions embedded in the second substrate.

14. The folding screen according to claim 13, It is characterized in that The width of each of the first flexible glass portions is the first width, and the distance between each two adjacent first flexible glass portions is the first distance.

15. The folding screen according to claim 14, It is characterized in that The width of each of the second flexible glass portions is the second width, and the distance between each two adjacent second flexible glass portions is the second distance.

16. The folding screen according to claim 15, It is characterized in that The first width is equal to the second width, and the first interval is equal to the second interval.

17. The folding screen according to claim 16, It is characterized in that The orthographic projection of each of the first flexible glass portions on the second strengthening layer completely overlaps with each of the second flexible glass portions.

18. The folding screen according to claim 15, It is characterized in that The first width is greater than the second width, and the first spacing is less than or equal to the second spacing.

19. The folding screen according to claim 14, It is characterized in that The width of the second flexible glass portion located in the bendable area is greater than the width of the second flexible glass portion located in the first area and the width of the second flexible glass portion located in the second area.

20. The folding screen according to claim 19, It is characterized in that The width of the second flexible glass portion located in the bendable area is greater than the first width, and the width of the second flexible glass portion located in the first area and the width of the second flexible glass portion located in the second area are less than the first width.

21. The folding screen according to claim 19, It is characterized in that The distance between every two adjacent second flexible glass parts is equal, and the distance between adjacent second flexible glass parts is greater than the first distance.

22. The folding screen according to claim 14, It is characterized in that Each of the first flexible glass portions is disposed on the first surface of the first reinforcement layer.

23. The folding screen according to claim 2 or 3, It is characterized in that The first reinforcement layer includes a first substrate and a flexible glass layer disposed on the first substrate, and the second reinforcement layer includes a second substrate and a plurality of second flexible glass portions embedded in the second substrate.

24. The folding screen according to any one of claims 1 to 3, It is characterized in that Also includes: The protective layer is located on the front side of the folding screen.

25. The folding screen according to any one of claims 1 to 3, It is characterized in that Also includes: A support plate is located on the back of the folding screen; the support plate includes a deformation portion and a non-deformation portion, and the non-deformation portion is connected to both sides of the deformation portion.

26. A foldable electronic device, It is characterized in that It comprises a shell assembly and the folding screen according to any one of claims 1 to 25, wherein the folding screen is mounted on the shell assembly.

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