Flexible display screen and terminal device

Abstract

The application discloses a flexible display screen and a terminal device. The flexible display screen comprises a display module, a supporting layer and an adhesive layer. The display module is provided with a light transmission hole. The supporting layer is provided with a first through hole. The adhesive layer is provided with a second through hole. The display module, the adhesive layer and the supporting layer are sequentially stacked. The light transmission hole is communicated with the first through hole and the second through hole. The flexible display screen further comprises a first reinforcing sheet. The hardness of the first reinforcing sheet is greater than that of the supporting layer. The first reinforcing sheet is connected with the hole wall of the first through hole and surrounds the hole shaft of the first through hole. The first reinforcing sheet surrounds a third through hole. The flexible display screen further comprises a second reinforcing sheet. The hardness of the second reinforcing sheet is greater than that of the adhesive layer. The second reinforcing sheet is located in the second through hole. The second reinforcing sheet is connected with the hole wall of the second through hole and surrounds the hole shaft of the second through hole. The second reinforcing sheet surrounds a fourth through hole. The application can improve the anti-deformation ability of the surrounding area of the light transmission hole on the flexible display screen.

Description

Technical Field

[0001] This application relates to the field of terminal equipment technology, and in particular to a flexible display screen and terminal equipment. Background Technology

[0002] With the increasing popularity and development of mobile phones, computers, and other terminal devices, their functions are constantly being enriched. Among these, camera functionality has become almost indispensable. In existing technologies, a light-transmitting hole is typically created in the display screen of the terminal device, allowing external light to pass through and enter the camera, which then captures the image. For example, creating a light-transmitting hole in a flexible display screen weakens the structural strength of the area surrounding the hole. When the terminal device is subjected to external impact, the area around the light-transmitting hole in the flexible display screen is prone to deformation, leading to display malfunctions. Summary of the Invention

[0003] This application provides a flexible display screen and terminal device that can improve the deformation resistance of the area surrounding the light-transmitting holes on the flexible display screen.

[0004] This application provides a flexible display screen, including a display module, a support layer, and an adhesive layer. The display module has a light-transmitting hole, the support layer has a first through-hole, and the adhesive layer has a second through-hole. The display module, the adhesive layer, and the support layer are stacked sequentially along the thickness direction of the flexible display screen. The light-transmitting hole communicates with the first through-hole and the second through-hole. Along the thickness direction of the flexible display screen, the orthographic projection of the first through-hole onto the display module completely covers the light-transmitting hole, and the orthographic projection of the second through-hole onto the support layer completely covers the first through-hole.

[0005] The flexible display screen further includes a first reinforcing sheet, the first reinforcing sheet having a harderness than the support layer. The first reinforcing sheet is connected to the wall of the first through hole and surrounds the hole axis of the first through hole. The first reinforcing sheet forms a third through hole, the third through hole communicating with the first through hole. The third through hole, when projected onto the display module, completely covers the light-transmitting hole; and / or,

[0006] The flexible display screen further includes a second reinforcing sheet, the hardness of which is greater than that of the adhesive layer. The second reinforcing sheet is located inside the second through hole, connected to the hole wall of the second through hole, and surrounds the hole axis of the second through hole. The second reinforcing sheet forms a fourth through hole, which communicates with the second through hole.

[0007] In this design, along the thickness direction of the flexible display screen, the first through-hole, when projected onto the display module, completely covers the light-transmitting hole; the second through-hole, when projected onto the support layer, completely covers the first through-hole; and the third through-hole, when projected onto the display module, completely covers the light-transmitting hole. That is, the diameter of the first through-hole is greater than or equal to the diameter of the light-transmitting hole, the diameter of the second through-hole is greater than or equal to the diameter of the first through-hole, and the diameter of the third through-hole is greater than or equal to the diameter of the light-transmitting hole. The diameter of the fourth through-hole is smaller than the diameter of the second through-hole, but the diameter of the fourth through-hole can be greater than, less than, or equal to the diameter of the light-transmitting hole. The light-transmitting hole, the first through-hole, the third through-hole, and the fourth through-hole can be arranged coaxially or non-coaxially.

[0008] A flexible display screen can include both a first reinforcing sheet and a second reinforcing sheet. In this case, the light-transmitting aperture of the flexible display screen is formed by a light-transmitting aperture, a first through-hole, a second through-hole, a third through-hole, and a fourth through-hole. Alternatively, a flexible display screen can include only the first reinforcing sheet. In this case, the light-transmitting aperture of the flexible display screen is formed by a light-transmitting aperture, a first through-hole, a second through-hole, and a fourth through-hole.

[0009] It is understood that this application, by setting a first reinforcing sheet with a hardness greater than that of the support layer and connecting the first reinforcing sheet to the wall of the first through-hole in the support layer, can enhance the structural strength of the area surrounding the first through-hole in the support layer and improve its resistance to deformation. This, in turn, improves the stability of the support provided by the area surrounding the first through-hole to the display module, ensuring the shape stability of the display module. This prevents deformation of the area surrounding the first through-hole in the support layer when the flexible display is subjected to external forces, which could affect the support provided by the support layer to the display module, causing deformation of the area surrounding the light-transmitting hole of the display module, and ultimately leading to display malfunctions. In other words, the setting of the first reinforcing sheet can improve the resistance to deformation of the area surrounding the light-transmitting hole of the flexible display.

[0010] This application, by incorporating a second reinforcing sheet with a hardness greater than that of the adhesive layer and connecting it to the wall of the second through-hole in the adhesive layer, enhances the structural strength of the area surrounding the second through-hole in the adhesive layer, improving its resistance to deformation. This, in turn, improves the connection stability between the area surrounding the second through-hole and the display module, ensuring the shape stability of the display module. It prevents deformation of the area surrounding the second through-hole in the adhesive layer when the flexible display is subjected to external forces, which could then lead to deformation of the area surrounding the light-transmitting hole in the display module, causing display malfunctions. In other words, the second reinforcing sheet improves the resistance to deformation of the area surrounding the light-transmitting hole in the flexible display.

[0011] In one possible implementation, the support layer is provided with a first receiving groove, which is recessed in the wall of the first through hole and surrounds the hole axis of the first through hole.

[0012] The first reinforcing sheet is housed in the first receiving groove and is connected to the groove wall of the first receiving groove.

[0013] It is understandable that by setting a first receiving groove and connecting the first reinforcing sheet to the groove wall of the first receiving groove, the contact area between the first reinforcing sheet and the support layer can be increased. At the same time, the first receiving groove can also limit the position of the first reinforcing sheet. Therefore, installing the first reinforcing sheet in the first receiving groove can improve the installation stability of the first reinforcing sheet.

[0014] In one possible implementation, the first reinforcing sheet includes an outer peripheral surface, the first reinforcing sheet is located within the first through hole, and the outer peripheral surface of the first reinforcing sheet is connected to the hole wall of the first through hole.

[0015] It is understandable that by directly connecting the first reinforcing sheet to the wall of the first through hole in the support layer, there is no need to open the first receiving groove on the wall of the first through hole in the support layer, thus simplifying the manufacturing process of the support layer.

[0016] In one possible implementation, the second reinforcing sheet includes a first surface and a second surface, which are disposed opposite to each other along the thickness direction of the second reinforcing sheet;

[0017] The first surface is connected to the display module, and the second surface is connected to the support layer.

[0018] The connection between the second surface and the support layer includes both direct connection between the second surface and the support layer and indirect connection between the second surface and the support layer through the first reinforcing sheet.

[0019] It is understandable that by connecting the first surface of the second reinforcing sheet to the display module and the second surface to the support layer, the second reinforcing sheet has a large contact area with both the display module and the support layer, thus improving the installation stability of the second reinforcing sheet.

[0020] In one possible implementation, the second reinforcing sheet is visible light transmittance and protrudes from the hole wall of the light-transmitting hole in the direction of the hole axis along the radial direction of the light-transmitting hole.

[0021] Understandably, the second reinforcing sheet is visible light transmittant. When the optical sensor is a camera, the light emitted / received by the optical sensor can pass not only through the fourth through-hole of the second reinforcing sheet, but also through the portion of the second reinforcing sheet protruding from the wall of the through-hole. While ensuring the transmission of light from the optical sensor, the second reinforcing sheet also maximizes the structural strength of the area surrounding the through-hole of the flexible display screen.

[0022] In one possible implementation, along the radial direction of the light-transmitting hole, the wall of the fourth through hole is flush with the wall of the light-transmitting hole; or,

[0023] Along the radial direction of the light-transmitting hole, the wall of the fourth through hole is recessed relative to the wall of the light-transmitting hole in a direction away from the hole axis of the light-transmitting hole.

[0024] It is understandable that the wall of the fourth through hole is flush with the wall of the light-transmitting hole, or the wall of the fourth through hole is recessed relative to the wall of the light-transmitting hole in a direction away from the hole axis. The setting of the second reinforcing sheet will not block the light emitted / received by the optical sensor, thus ensuring the transmission effect of the light emitted / received by the optical sensor.

[0025] In one possible implementation, the support layer is made of titanium alloy.

[0026] It is understandable that titanium alloys are lightweight and have high hardness. The hardness of the first reinforcing sheet is greater than that of titanium alloys. Therefore, the support layer is made of titanium alloy, which can make the support layer lightweight while ensuring the structural strength of the area around the first through hole of the support layer.

[0027] In one possible implementation, the adhesive layer is made of optical adhesive, and the second reinforcing sheet is made of thermoplastic polyester or polyimide.

[0028] In one possible implementation, the flexible display screen includes a first part, a second part, and a bendable part, the bendable part connecting the first part and the second part, and the light-transmitting hole, the first through hole, the second through hole, the third through hole, and the fourth through hole are all located in the first part.

[0029] Understandably, using a single first or second reinforcing sheet, or both simultaneously, can improve the deformation resistance of the area surrounding the light-transmitting aperture of a flexible display screen. Flexible displays are particularly suitable for foldable screens.

[0030] A second aspect of this application provides a terminal device, including a mid-frame, an optical sensor, and a flexible display screen as described above, wherein both the optical sensor and the flexible display screen are connected to the mid-frame, and the optical axis of the optical sensor extends along the thickness direction of the terminal device;

[0031] The optical axis of the optical sensor passes through the light-transmitting hole, the first through hole, the second through hole, the third through hole and / or the light-transmitting hole, the first through hole, the second through hole and the fourth through hole.

[0032] It is understood that the terminal device provided in the second aspect of this application uses the flexible display screen provided in the first aspect of this application. Due to the arrangement of the first and second reinforcing sheets, the deformation resistance of the area around the light-transmitting hole of the flexible display screen is improved, ensuring the display quality of the flexible display screen. Therefore, it is beneficial to improve the user experience of the terminal device. Attached Figure Description

[0033] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application;

[0035] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the terminal device shown.

[0036] Figure 3 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen of the terminal device shown in the diagram illustrates one embodiment of the first reinforcing sheet.

[0037] Figure 4 for Figure 3 A cross-sectional schematic diagram of another embodiment of the first reinforcing sheet shown;

[0038] Figure 5 for Figure 3 A cross-sectional schematic diagram of another embodiment of the first reinforcing sheet shown;

[0039] Figure 6 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen of the terminal device shown, wherein only the first reinforcing sheet is provided;

[0040] Figure 7 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen of the terminal device shown, wherein only the second reinforcing sheet is provided;

[0041] Figure 8 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen of the terminal device shown in the diagram;

[0042] Figure 9 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen of the terminal device shown in the figure;

[0043] Figure 10 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen of the terminal device shown in the diagram. Detailed Implementation

[0044] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0045] And / or: This is simply a way of describing the relationship between related objects. It indicates that there can be three kinds of relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0046] Multiple: refers to two or more.

[0047] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0049] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the terminal device 1000 provided in the embodiments of this application; Figure 2 for Figure 1 The diagram shows the exploded structure of the terminal device 1000.

[0050] This application provides a terminal device 1000, which includes, but is not limited to, cellphones, notebook computers, tablet personal computers, laptop computers, personal digital assistants, wearable devices, or mobile devices.

[0051] For ease of description, the length direction of the terminal device 1000 is defined as the X direction, the width direction of the terminal device 1000 is defined as the Y direction, and the thickness direction of the terminal device 1000 is defined as the Z direction. The X, Y, and Z directions are all perpendicular to each other.

[0052] The terminal device 1000 includes a housing assembly 500, a flexible display screen 100, and an optical sensor 600. The flexible display screen 100 has a light-transmitting aperture A. Along the thickness direction (Z-axis) of the terminal device 1000, the flexible display screen 100 is located on one side of the housing assembly 500, which supports the flexible display screen 100. The optical sensor 600 is connected to the housing assembly 500. Light received / emitted by the optical sensor 600 passes through the light-transmitting aperture A of the flexible display screen 100.

[0053] It can be understood that the length direction (X-axis direction) of the terminal device 1000 is the length direction of the flexible display screen 100, the width direction (Y-axis direction) of the terminal device 1000 is the width direction of the flexible display screen 100, and the thickness direction (Z-axis direction) of the terminal device 1000 is the thickness direction of the flexible display screen 100.

[0054] The flexible display screen 100 includes, but is not limited to, organic light-emitting diode (OLED) displays, active-matrix organic light-emitting diode (AMOLED) displays, mini organic light-emitting diode (mini OLED) displays, micro organic light-emitting diode (micro OLED) displays, and quantum dot light-emitting diode (QLED) displays. The optical sensor 600 includes, but is not limited to, cameras, infrared sensors, and laser sensors.

[0055] Please continue reading. Figure 1 and Figure 2 The housing assembly 500 includes a first housing 510, a second housing 520, and a pivot mechanism 530. The pivot mechanism 530 is rotatably connected between the first housing 510 and the second housing 520 to achieve a rotatable connection between them. Both the first housing 510 and the second housing 520 include a rear cover 540 and a middle frame 550. Along the thickness direction (Z-axis direction) of the terminal device 1000, the middle frame 550 of the first housing 510 is disposed opposite to the rear cover 540. Along the thickness direction (Z-axis direction) of the terminal device 1000, the middle frame 550 of the second housing 520 is disposed opposite to the rear cover 540. The pivot mechanism 530 is rotatably connected to the first housing 510 and the second housing 520. The first housing 510 and the second housing 520 are rotatably connected via the pivot mechanism 530 to allow the first housing 510 to be folded and unfolded relative to the second housing 520.

[0056] Please continue reading. Figure 2 Along the length direction (X-axis direction) of the flexible display screen 100, the flexible display screen 100 includes a first portion 110, a second portion 120, and a bendable portion 130. The bendable portion 130 connects the first portion 110 and the second portion 120. The bendable portion 130 can be bent along the width direction (Y-axis direction) of the flexible display screen 100.

[0057] Please continue reading. Figure 1 and Figure 2 The flexible display screen 100 is mounted on the first housing 510 and the second housing 520. Specifically, the first portion 110 of the flexible display screen 100 is mounted on the middle frame 550 of the first housing 510. Along the thickness direction (Z-axis direction) of the terminal device 1000, the first portion 110 of the flexible display screen 100 is located on the side of the middle frame 550 of the first housing 510 facing away from the rear cover 540 of the first housing 510. The second portion 120 of the flexible display screen 100 is mounted on the middle frame 550 of the second housing 520. Along the thickness direction (Z-axis direction) of the terminal device 1000, the second portion 120 of the flexible display screen 100 is located on the side of the middle frame 550 of the second housing 520 facing away from the rear cover 540 of the second housing 520. The bendable portion 130 of the flexible display screen 100 is disposed opposite to the pivot mechanism 530. The first housing 510 and the second housing 520 can rotate relative to each other through the pivot mechanism 530, so that the flexible display screen 100 can switch between an unfolded state and a folded state.

[0058] The light-transmitting hole A of the flexible display screen 100 can be located in the first part 110 of the flexible display screen 100, in which case the optical sensor 600 is connected to the first housing 510. Alternatively, the light-transmitting hole A can be located in the second part 120 of the flexible display screen 100, in which case the optical sensor 600 is connected to the second housing 520. This embodiment only illustrates the case where the light-transmitting hole A is located in the first part 110 of the flexible display screen 100 and the optical sensor 600 is connected to the first housing 510. It can be understood that the connection between the light-transmitting hole A located in the second part 120 of the flexible display screen 100 and the optical sensor 600 connected to the second housing 520 can also be considered.

[0059] Please continue reading. Figure 2 In this embodiment, the optical sensor 600 is mounted on the middle frame 550 of the first housing 510. The optical axis of the optical sensor 600 extends along the thickness direction (Z-axis direction) of the terminal device 1000. The light received / emitted by the optical sensor 600 passes through the light-transmitting hole A of the flexible display screen 100.

[0060] In one possible implementation, the optical sensor 600 is located on the side of the middle frame 550 of the first housing 510 facing away from the rear cover 540 of the first housing 510. Along the thickness direction (Z-axis direction) of the terminal device 1000, the optical sensor 600 can be completely located between the first portion 110 of the flexible display screen 100 and the middle frame 550 of the first housing 510; or it can be partially located between the first portion 110 of the flexible display screen 100 and the middle frame 550 of the first housing 510, with the other part extending into the light-transmitting hole A of the flexible display screen 100.

[0061] In another possible implementation, the middle frame 550 of the first housing 510 has an exposure hole (not shown). An optical sensor 600 is located on the side of the middle frame 550 of the first housing 510 facing the rear cover 540 of the first housing 510. The optical sensor 600 is opposite to the exposure hole. The optical axis of the optical sensor 600 extends along the thickness direction (Z-axis direction) of the terminal device 1000. The light received / emitted by the optical sensor 600 passes through the exposure hole and the light-transmitting hole A of the flexible display screen 100.

[0062] Please see Figure 3 , Figure 3 for Figure 2 A partial structural cross-sectional schematic diagram of a first embodiment of the flexible display screen 100 of the terminal device 1000 shown, illustrating one implementation of the first reinforcing sheet 50.

[0063] The flexible display screen 100 includes a cover plate 10, a display module 20, an adhesive layer 30, and a support layer 40. The cover plate 10 is made of a flexible material and has visible light transmittance. The cover plate 10, the display module 20, the adhesive layer 30, and the support layer 40 are stacked sequentially along the thickness direction (Z-axis direction) of the flexible display screen 100.

[0064] In this embodiment, the display module 20 includes a first mounting surface 20a and a second mounting surface 20b. The first mounting surface 20a and the second mounting surface 20b are arranged facing away from each other along the thickness direction of the display module 20. The display module 20 is provided with a light-transmitting hole 28. The light-transmitting hole 28 is a circular through-hole. Along the thickness direction of the flexible display screen 100, the light-transmitting hole 28 penetrates the display module 20. A cover plate 10 covers the first mounting surface 20a of the display module 20.

[0065] Specifically, the display module 20 includes a transparent connecting layer 21, a polarizer 22, a display panel 23, and a protective film layer 24. Along the thickness direction (Z-axis direction) of the flexible display screen 100, the transparent connecting layer 21, polarizer 22, display panel 23, and protective film layer 24 are stacked sequentially. The surface of the transparent connecting layer 21 facing away from the protective film layer 24 along the thickness direction (Z-axis direction) of the display module 20 is the first mounting surface 20a. The surface of the protective film layer 24 facing away from the transparent connecting layer 21 is the second mounting surface 20b. Along the thickness direction (Z-axis direction) of the flexible display screen 100, light-transmitting holes 28 sequentially penetrate the two surfaces facing away from the transparent connecting layer 21, the two surfaces facing away from the polarizer 22, the two surfaces facing away from the display panel 23, and the two surfaces facing away from the protective film layer 24.

[0066] In other embodiments, the display module 20 may also have other structures. This application does not impose specific limitations on the structure of the display module 20.

[0067] Please continue reading. Figure 3 In this embodiment, the display module 20 further includes an ink layer 25. The ink layer 25 is stacked on the cover plate 10 and surrounds the axis of the light-transmitting hole 28. Along the thickness direction (Z-axis direction) of the flexible display screen 100, the ink layer 25 is located between the cover plate 10 and the transparent connecting layer 21. The ink layer 25 is embedded in the transparent connecting layer 21. The ink layer 25 is annular. The ink layer 25 has through holes. The diameter of the through holes in the ink layer 25 is smaller than the diameter of the light-transmitting hole 28. Along the thickness direction (Z-axis direction) of the flexible display screen 100, the orthogonal projection of the hole wall of the light-transmitting hole 28 onto the ink layer 25 is located within the ink layer 25. The ink layer 25 serves to conceal imperfections, preventing the user from seeing the hole wall of the light-transmitting hole 28 from the side of the cover plate 10 facing away from the display module 20, i.e., the light-emitting side of the flexible display screen 100.

[0068] Please continue reading. Figure 3The support layer 40 includes a first connecting surface 41 and a second connecting surface 42. The first connecting surface 41 and the second connecting surface 42 are arranged facing away from each other along the thickness direction of the support layer 40. The support layer 40 is provided with a first through hole 43 and a first receiving groove 44. In this embodiment, the first through hole 43 is a circular through hole. Along the thickness direction of the support layer 40, the first through hole 43 penetrates through the first connecting surface 41 and the second connecting surface 42. The diameter of the first through hole 43 is larger than the diameter of the light-transmitting hole 28.

[0069] In other embodiments, the diameter of the first through hole 43 may also be equal to the diameter of the light-transmitting hole 28 (with certain dimensional tolerances allowed).

[0070] The first receiving groove 44 is an annular groove. The first receiving groove 44 is recessed into the wall of the first through hole 43 and surrounds the axis of the first through hole 43. In this embodiment, the first receiving groove 44 is an annular groove. Along the thickness direction of the support layer 40, the first receiving groove 44 penetrates the second connecting surface 42 of the support layer 40. The groove wall of the first receiving groove 44 includes a groove sidewall and a groove bottom wall, and the groove sidewall is connected to the groove bottom wall. The groove bottom wall is the surface of the first receiving groove 44 facing the axis of the first through hole 43; the groove sidewall is the surface of the first receiving groove 44 facing the thickness direction of the support layer 40.

[0071] In other embodiments, the first receiving groove 44 may also be a triangular annular groove or a square annular groove, or an annular groove of various other shapes.

[0072] It should be noted that the support layer 40, corresponding to the bendable portion 130 of the flexible display screen 100, is flexible after special treatment (e.g., hollowing out) so that the bendable portion 130 of the flexible display screen 100 can be bent.

[0073] Please continue reading. Figure 3 The adhesive layer 30 is provided with a second through hole 31. In this embodiment, the second through hole 31 is a circular through hole. Along the thickness direction of the adhesive layer 30, the second through hole 31 penetrates two opposing surfaces of the adhesive layer 30. The adhesive layer 30 is formed after the adhesive has cured. It can also be understood that the second through hole 31 is surrounded by the adhesive layer 30. The diameter of the second through hole 31 is larger than the diameter of the first through hole 43.

[0074] In other embodiments, the diameter of the second through hole 31 may also be equal to the diameter of the first through hole 43 (with certain dimensional tolerances allowed).

[0075] Please continue reading. Figure 3Along the thickness direction (Z-axis direction) of the flexible display screen 100, the support layer 40 is bonded to the second mounting surface 20b of the display module 20 via the adhesive layer 30. Along the thickness direction (Z-axis direction) of the flexible display screen 100, the first through-hole 43, in its orthographic projection onto the display module 20, completely covers the light-transmitting hole 28. The second through-hole 31, in its orthographic projection onto the support layer 40, completely covers the first through-hole 43.

[0076] Specifically, the adhesive layer 30 bonds the first connecting surface 41 of the support layer 40 and the second mounting surface 20b of the display module 20. The light-transmitting hole 28, the first through hole 43, and the second through hole 31 are coaxial and interconnected.

[0077] In other embodiments, the light-transmitting hole 28, the first through hole 43, and the second through hole 31 may also be coaxial.

[0078] It should be noted that, along the thickness direction (Z-axis direction) of the flexible display screen 100, the orthographic projection of the first through hole 43 on the display module 20 includes the orthographic projection of the area enclosed by the first through hole 43 on the display module 20. The orthographic projection of the second through hole 31 on the support layer 40 includes the orthographic projection of the area enclosed by the second through hole 31 on the support layer 40.

[0079] Please continue reading. Figure 3 In this embodiment, the flexible display screen 100 further includes a first reinforcing sheet 50 and a second reinforcing sheet 60. The first reinforcing sheet 50 is connected to the support layer 40. The second reinforcing sheet 60 is connected to the adhesive layer 30.

[0080] The first reinforcing sheet 50 is an annular sheet. The shape of the first reinforcing sheet 50 matches the shape of the first receiving groove 44. The first reinforcing sheet 50 is provided with a third through hole. The third through hole is a circular through hole. The diameter of the third through hole is larger than the diameter of the light-transmitting hole 28. The diameter of the third through hole is equal to the diameter of the first through hole 43 (a certain dimensional tolerance is allowed). The first reinforcing sheet 50 includes an outer peripheral surface 51, an inner peripheral surface 52, a first surface 53, and a second surface 54. Along the radial direction of the third through hole, the outer peripheral surface 51 and the inner peripheral surface 52 are arranged facing away from each other. Along the thickness direction of the first reinforcing sheet 50, the first surface 53 and the second surface 54 are arranged facing away from each other; the first surface 53 and the second surface 54 are connected between the outer peripheral surface 51 and the inner peripheral surface 52. In this embodiment, the first reinforcing sheet 50 is annular.

[0081] In other embodiments, the diameter of the third through hole may also be equal to the diameter of the light-transmitting hole 28. The diameter of the third through hole may also be smaller than the diameter of the first through hole 43; or, the diameter of the third through hole may also be larger than the diameter of the first through hole 43.

[0082] The first surface 53 of the first reinforcing sheet 50 can be a plane, a curved surface, or other various shapes. This application does not impose specific restrictions on the shape of the first surface 53 of the first reinforcing sheet 50, as long as the shape of the first reinforcing sheet 50 matches the shape of the first receiving groove 44.

[0083] One possible implementation, such as Figure 3 The first surface 53 and the second surface 54 of the first reinforcing sheet 50 are both planar.

[0084] Please see Figure 4 , Figure 4 for Figure 3 A cross-sectional schematic diagram of another embodiment of the first reinforcing sheet 50 is shown. In another possible embodiment, the first surface 53 of the first reinforcing sheet 50 is curved, such as an arc surface. The second surface 54 is flat.

[0085] Please see Figure 5 , Figure 5 for Figure 3 A cross-sectional schematic diagram of another embodiment of the first reinforcing sheet 50 shown. In yet another possible embodiment, the first surface 53 of the first reinforcing sheet 50 is serrated, and the second surface 54 is planar.

[0086] In other embodiments, the first reinforcing plate 50 may also be a triangular annular plate, a square annular plate, or an annular plate of various other shapes. This application does not impose specific limitations on the shape of the first reinforcing plate 50, as long as the shape of the first reinforcing plate 50 matches the shape of the first receiving groove 44.

[0087] In this embodiment, the hardness of the first reinforcing sheet 50 is greater than the hardness of the support layer 40. The material of the support layer 40 includes, but is not limited to, metal, plastic, ceramic, etc. The material of the first reinforcing sheet 50 includes, but is not limited to, metal, plastic, ceramic, etc. For example, the material of the support layer 40 is titanium alloy, and the material of the first reinforcing sheet 50 is steel with a hardness greater than that of titanium alloy, such as stainless steel.

[0088] Please continue reading. Figure 3 In this embodiment, the first reinforcing sheet 50 is housed in the first receiving groove 44. The first reinforcing sheet 50 is connected to the groove wall of the first receiving groove 44. The first receiving groove 44 is recessed in the hole wall of the first through hole 43, which can be understood as the first reinforcing sheet 50 being indirectly connected to the hole wall of the first through hole 43 through the groove wall of the first receiving groove 44. In the thickness direction (Z-axis direction) of the flexible display screen 100, the third through hole completely covers the light-transmitting hole 28 in the orthogonal projection of the display module 20.

[0089] Specifically, the outer peripheral surface 51 of the first reinforcing sheet 50 is connected to the bottom wall of the first receiving groove 44. The first surface 53 of the first reinforcing sheet 50 is connected to the side wall of the first receiving groove 44. The second surface 54 of the first reinforcing sheet 50 is flush with the second connecting surface 42 of the support layer 40 (with certain dimensional tolerances allowed). The third through hole is coaxial with the first through hole 43. The third through hole communicates with the first through hole 43. Along the radial direction of the first through hole 43, the wall of the third through hole is flush with the wall of the first through hole 43 (with certain dimensional tolerances allowed).

[0090] In other embodiments, along the radial direction of the first through hole 43, the wall of the third through hole may also be recessed relative to the wall of the first through hole 43 away from the hole axis of the first through hole 43, that is, the diameter of the third through hole is larger than the diameter of the first through hole 43; or, along the radial direction of the first through hole 43, the wall of the third through hole may also protrude from the wall of the first through hole 43 towards the hole axis of the first through hole 43, that is, the diameter of the third through hole is smaller than the diameter of the first through hole 43. The third through hole and the first through hole 43 may also be coaxial.

[0091] It should be noted that the connection method between the first reinforcing sheet 50 and the groove wall of the first receiving groove 44 includes, but is not limited to, bonding and welding. Along the thickness direction (Z-axis direction) of the flexible display screen 100, the orthographic projection of the third through hole in the display module 20 includes the orthographic projection of the area enclosed by the third through hole in the display module 20.

[0092] Understandably, by providing a first reinforcing sheet 50, the hardness of which is greater than that of the support layer 40, and embedding the first reinforcing sheet 50 within the support layer 40, this application enhances the structural strength of the area surrounding the first through-hole 43 of the support layer 40, improves the deformation resistance of this area, and consequently enhances the stability of the support provided by the area surrounding the first through-hole 43 of the support layer 40 to the display module 20, ensuring the shape stability of the display module 20. This prevents deformation of the area surrounding the first through-hole 43 of the support layer 40 when the flexible display screen 100 is subjected to external forces, thus avoiding deformation of the area surrounding the light-transmitting hole 28 of the display module 20 and preventing display malfunctions in the flexible display screen 100.

[0093] Titanium alloys are lightweight and have high hardness. Therefore, when the support layer 40 is made of titanium alloy, the first reinforcing sheet 50 has a higher hardness than titanium alloy. This allows the support layer 40 to be lightweight while ensuring the structural strength of the area surrounding the first through hole 43 of the support layer 40.

[0094] Furthermore, when the first surface 53 of the first reinforcing sheet 50 is curved, such as an arc surface, and the second surface 54 is flat, the local thickness of the first reinforcing sheet 50 increases, and the local structural strength of the first reinforcing sheet 50 increases. Compared to the case where both the first surface 53 and the second surface 54 of the first reinforcing sheet 50 are flat, the deformation resistance of the area surrounding the first through hole 43 of the support layer 40 can be further improved, thereby improving the deformation resistance of the area surrounding the light-transmitting hole 28 of the display module 20.

[0095] When the first surface 53 of the first reinforcing sheet 50 is serrated, the shape of the first reinforcing sheet 50 matches the shape of the first receiving groove 44. Therefore, the first reinforcing sheet 50 is housed in the first receiving groove 44, and the groove wall of the first receiving groove 44 can limit the first reinforcing sheet 50, improve the stability of the first reinforcing sheet 50, and prevent the first reinforcing sheet 50 from moving relative to the first receiving groove 44.

[0096] Please continue reading. Figure 3 The second reinforcing sheet 60 is an annular sheet. The second reinforcing sheet 60 has a fourth through hole. The fourth through hole is a circular through hole. The diameter of the fourth through hole is smaller than the diameter of the second through hole 31. The diameter of the fourth through hole is smaller than the diameter of the light-transmitting hole 28. For example, the diameter of the light-transmitting hole 28 is 2.0 mm. The diameter range of the fourth through hole is 0.3-0.5 mm (inclusive). The second reinforcing sheet 60 includes a first side surface 61, a second side surface 62, a first surface 63, and a second surface 64. Along the radial direction of the fourth through hole, the first side surface 61 and the second side surface 62 are arranged facing away from each other. Along the thickness direction of the second reinforcing sheet 60, the first surface 63 and the second surface 64 are arranged facing away from each other; the first surface 63 and the second surface 64 are connected between the first side surface 61 and the second side surface 62. In this embodiment, the second reinforcing sheet 60 is an annular sheet.

[0097] In other embodiments, the diameter of the fourth through hole may be equal to the diameter of the light-transmitting hole 28 (with certain dimensional tolerances allowed), or larger than the diameter of the light-transmitting hole 28. The second reinforcing sheet 60 may also be a triangular annular sheet or a square annular sheet, or an annular sheet of various other shapes. This application does not limit the specific shape of the second reinforcing sheet 60.

[0098] In this embodiment, the hardness of the second reinforcing sheet 60 is greater than the hardness of the adhesive layer 30. The second reinforcing sheet 60 is transparent to visible light. The adhesive layer 30 is made of OCA (Optically Clear Adhesive). The second reinforcing sheet 60 is made of plastic. For example, the second reinforcing sheet 60 is made of PET (Polyethylene terephthalate); or the second reinforcing sheet 60 is made of PI (Polyimide).

[0099] In other embodiments, the second reinforcing sheet 60 may also be non-transparent to visible light; in this case, the material of the second reinforcing sheet 60 may include, but is not limited to, plastic, metal, and ceramic.

[0100] Please continue reading. Figure 3 In this embodiment, the second reinforcing sheet 60 is located within the second through hole 31 of the adhesive layer 30. The second reinforcing sheet 60 is connected to the hole wall of the second through hole 31.

[0101] Specifically, the first surface 63 of the second reinforcing sheet 60 is bonded to the second mounting surface 20b of the display module 20 using adhesive 70, and the second surface 64 of the second reinforcing sheet 60 is bonded to the first connecting surface 41 of the support layer 40 using adhesive 70. The first side surface 61 of the second reinforcing sheet 60 is bonded to the wall of the second through hole 31 of the adhesive layer 30 using adhesive 70. The fourth through hole is coaxial with the second through hole 31 and communicates with it. Along the radial direction of the light-transmitting hole 28, the wall of the fourth through hole protrudes from the wall of the light-transmitting hole 28 in the direction of the hole axis. The light-transmitting hole 28, the first through hole 43, the second through hole 31, the third through hole, and the fourth through hole together form the light-transmitting hole A.

[0102] In other embodiments, along the radial direction of the light-transmitting hole 28, the wall of the fourth through hole may also be flush with the wall of the light-transmitting hole 28 (with a certain dimensional tolerance allowed), that is, the diameter of the fourth through hole is equal to the diameter of the light-transmitting hole 28; or, the wall of the fourth through hole may also be recessed relative to the wall of the light-transmitting hole 28 in a direction away from the hole axis of the light-transmitting hole 28, that is, the diameter of the fourth through hole is greater than the diameter of the light-transmitting hole 28. The fourth through hole and the second through hole 31 may also be non-axial.

[0103] It is understood that by providing a second reinforcing sheet 60, the hardness of which is greater than that of the adhesive layer 30, and by connecting the second reinforcing sheet 60 to the wall of the second through hole 31 of the adhesive layer 30, this application can enhance the structural strength of the area surrounding the second through hole 31 of the adhesive layer 30, improve the deformation resistance of the area surrounding the second through hole 31 of the adhesive layer 30, and thus improve the connection stability between the area surrounding the second through hole 31 of the adhesive layer 30 and the display module 20, ensuring the shape stability of the display module 20. This prevents the area surrounding the second through hole 31 of the adhesive layer 30 from easily deforming when the flexible display screen 100 is subjected to external force, which could then cause deformation of the area surrounding the light-transmitting hole 28 of the display module 20, thereby preventing display malfunctions in the flexible display screen 100.

[0104] In this embodiment, along the radial direction of the light-transmitting hole 28, the second reinforcing sheet 60 protrudes from the hole wall of the light-transmitting hole 28 in the direction of the hole axis. The second reinforcing sheet 60 has visible light transmittance, allowing light received / emitted by the optical sensor 600 to pass through it. While ensuring the transmission of light received / emitted by the optical sensor 600, the second reinforcing sheet 60 also enhances the structural strength of the area surrounding the light-transmitting hole A of the flexible display screen 100 as much as possible.

[0105] In this embodiment, by providing a first reinforcing sheet 50 on the support layer 40, which is connected to the wall of the first through hole 43, and providing a second reinforcing sheet 60 on the adhesive layer 30, which is connected to the wall of the second through hole 31, not only can the deformation resistance of the area surrounding the first through hole 43 be improved, but the deformation resistance of the area surrounding the second through hole 31 can also be improved. Furthermore, the shape stability of the area surrounding the light-transmitting hole 28 of the display module 20 is also improved. Therefore, the deformation resistance of the area surrounding the light-transmitting hole A of the flexible display screen 100 can be improved, preventing the light-transmitting hole A from easily deforming when subjected to external impact, thus avoiding deformation of the display module 20 and display panel 23 malfunctions.

[0106] Please see Figure 6 , Figure 6 for Figure 2 The diagram shows a partial cross-sectional view of a first embodiment of the flexible display screen 100 of the terminal device 1000, in which only the first reinforcing sheet 50 is provided.

[0107] In some other embodiments, the flexible display screen 100 may include only the first reinforcing sheet 50, without the second reinforcing sheet 60. In this case, the light-transmitting hole A of the flexible display screen 100 is formed by the light-transmitting hole 28, the first through hole 43, the second through hole 31, and the third through hole.

[0108] It is understandable that by providing a first reinforcing sheet 50 on the support layer 40, and connecting the first reinforcing sheet 50 to the hole wall of the first through hole 43, not only can the deformation resistance of the area surrounding the first through hole 43 be improved, but the shape stability of the area surrounding the light-transmitting hole 28 of the display module 20 is also improved. Therefore, the deformation resistance of the area surrounding the light-transmitting hole A of the flexible display screen 100 can be improved, preventing the light-transmitting hole A from easily deforming when subjected to external impact, thus avoiding deformation of the display module 20 and display malfunction of the display panel 23.

[0109] Please see Figure 7 , Figure 7 for Figure 2This is a partial cross-sectional view of the flexible display screen 100 of the terminal device 1000 shown, in which only the second reinforcing sheet 60 is provided.

[0110] In other embodiments, the flexible display screen 100 may include only the second reinforcing sheet 60, without the first reinforcing sheet 50. In this case, the support layer 40 does not need to have the first receiving groove 44. The light-transmitting hole A of the flexible display screen 100 is formed by the light-transmitting hole 28, the first through hole 43, the second through hole 31, and the fourth through hole.

[0111] It is understandable that by providing a second reinforcing sheet 60 on the adhesive layer 30, and connecting the second reinforcing sheet 60 to the hole wall of the second through hole 31, not only can the deformation resistance of the area surrounding the second through hole 31 be improved, but the shape stability of the area surrounding the light-transmitting hole 28 of the display module 20 is also improved. Therefore, the deformation resistance of the area surrounding the light-transmitting hole A of the flexible display screen 100 can be improved, preventing the light-transmitting hole A from easily deforming when subjected to external impact, thus avoiding deformation of the display module 20 and display malfunction of the display panel 23.

[0112] Please see Figure 8 , Figure 8 for Figure 2 A partial structural cross-sectional schematic diagram of the flexible display screen 100 of the terminal device 1000 shown in the second embodiment.

[0113] The difference between this embodiment and the first embodiment described above is that: the first receiving groove 44 is recessed in the wall of the first through hole 43, and along the thickness direction (Z-axis direction) of the flexible display screen 100, the first receiving groove 44 penetrates the first connecting surface 41 of the support layer 40, but does not penetrate the second connecting surface 42 of the support layer 40.

[0114] In this embodiment, the first reinforcing sheet 50 is housed in the first receiving groove 44. The first reinforcing sheet 50 is connected to the groove wall of the first receiving groove 44. The first receiving groove 44 is recessed in the hole wall of the first through hole 43, which can be understood as the first reinforcing sheet 50 being indirectly connected to the hole wall of the first through hole 43 through the groove wall of the first receiving groove 44. In the thickness direction (Z-axis direction) of the flexible display screen 100, the third through hole completely covers the light-transmitting hole 28 in the orthogonal projection of the display module 20.

[0115] Specifically, the outer peripheral surface 51 of the first reinforcing sheet 50 is connected to the wall surface of the bottom wall of the first receiving groove 44. The first surface 53 of the first reinforcing sheet 50 is flush with the first connecting surface 41 of the support layer 40 (with certain dimensional tolerances allowed). The second surface 54 of the first reinforcing sheet 50 is connected to the wall surface of the side wall of the first receiving groove 44. The third through hole is coaxial with the first through hole 43. The third through hole communicates with the first through hole 43. Along the radial direction of the first through hole 43, the wall of the third through hole is flush with the wall of the first through hole 43 (with certain dimensional tolerances allowed).

[0116] In other embodiments, along the radial direction of the first through hole 43, the wall of the third through hole may also be recessed relative to the wall of the first through hole 43 away from the hole axis of the first through hole 43, that is, the diameter of the third through hole is larger than the diameter of the first through hole 43; or, along the radial direction of the first through hole 43, the wall of the third through hole may also protrude from the wall of the first through hole 43 towards the hole axis of the first through hole 43, that is, the diameter of the third through hole is smaller than the diameter of the first through hole 43. The third through hole and the first through hole 43 may also be coaxial.

[0117] It should be noted that, along the thickness direction (Z-axis direction) of the flexible display screen 100, the orthographic projection of the third through hole in the display module 20 includes the orthographic projection of the area enclosed by the third through hole in the display module 20.

[0118] Please continue reading. Figure 8 In this embodiment, the connection relationship between the second reinforcing sheet 60 and the adhesive layer 30 can refer to the connection relationship between the second reinforcing sheet 60 and the adhesive layer 30 in the first embodiment described above. The connection relationship between the second reinforcing sheet 60 and the display module 20 can refer to the connection relationship between the second reinforcing sheet 60 and the display module 20 in the first embodiment described above. The second surface 64 of the second reinforcing sheet 60 is connected to the first surface 53 of the first reinforcing sheet 50 by adhesive 70. In other embodiments, the second surface 64 of the second reinforcing sheet 60 can also be connected to the first connecting surface 41 of the support layer 40 by adhesive 70.

[0119] In this embodiment, the implementation of connecting the support layer 40 to the display module 20 via the adhesive layer 30 can refer to the implementation of connecting the support layer 40 to the display module 20 via the adhesive layer 30 in the first embodiment described above.

[0120] Please see Figure 9 , Figure 9 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen 100 of the terminal device 1000 shown in the third embodiment.

[0121] The difference between this embodiment and the first embodiment described above is that, along the thickness direction (Z-axis direction) of the flexible display screen 100, the first receiving groove 44 does not penetrate the second connecting surface 42 of the support layer 40.

[0122] In this embodiment, the first receiving groove 44 includes a bottom wall and two side walls. The two side walls are arranged opposite to each other along the thickness direction of the support layer 40; the bottom wall is connected between the two side walls.

[0123] In this embodiment, the first reinforcing piece 50 is embedded in the first receiving groove 44. The first reinforcing piece 50 is connected to the two side walls and the bottom wall of the first receiving groove 44. The first receiving groove 44 is recessed in the wall of the first through hole 43, which can be understood as the first reinforcing piece 50 being indirectly connected to the wall of the first through hole 43 through the wall of the first receiving groove 44.

[0124] Specifically, the outer peripheral surface 51 of the first reinforcing sheet 50 is connected to the bottom wall of the first receiving groove 44. The first surface 53 of the first reinforcing sheet 50 is connected to the wall of one side wall of the first receiving groove 44. The second surface 54 of the first reinforcing sheet 50 is connected to the wall of the other side wall of the first receiving groove 44. The third through hole is coaxial with the first through hole 43. The third through hole communicates with the first through hole 43. Along the radial direction of the first through hole 43, the wall of the third through hole is flush with the wall of the first through hole 43 (a certain dimensional tolerance is allowed).

[0125] In other embodiments, along the radial direction of the first through hole 43, the wall of the third through hole may also be recessed relative to the wall of the first through hole 43 away from the hole axis of the first through hole 43, that is, the diameter of the third through hole is larger than the diameter of the first through hole 43; or, along the radial direction of the first through hole 43, the wall of the third through hole may also protrude from the wall of the first through hole 43 towards the hole axis of the first through hole 43, that is, the diameter of the third through hole is smaller than the diameter of the first through hole 43. The third through hole and the first through hole 43 may also be coaxial.

[0126] Please continue reading. Figure 9 In this embodiment, the connection relationship between the second reinforcing sheet 60 and the adhesive layer 30 can refer to the connection relationship between the second reinforcing sheet 60 and the adhesive layer 30 in the first embodiment described above. The connection method between the second reinforcing sheet 60 and the display module 20 can also refer to the connection method between the second reinforcing sheet 60 and the display module 20 in the first embodiment described above. The connection method between the second reinforcing sheet 60 and the support layer 40 can also refer to the connection method between the second reinforcing sheet 60 and the support layer 40 in the first embodiment described above.

[0127] In this embodiment, the implementation of connecting the support layer 40 to the display module 20 via the adhesive layer 30 can refer to the implementation of connecting the support layer 40 to the display module 20 via the adhesive layer 30 in the first embodiment described above.

[0128] Please see Figure 10 , Figure 10 for Figure 2 A partial cross-sectional schematic diagram of the flexible display screen 100 of the terminal device 1000 shown in the fourth embodiment.

[0129] The difference between this embodiment and the first embodiment described above is that the support layer 40 does not have a first receiving groove 44. The first reinforcing sheet 50 is directly connected to the wall of the first through hole 43 of the support layer 40.

[0130] In this embodiment, the first reinforcing sheet 50 is located within the first through hole 43 of the support layer 40 and is connected to the hole wall of the first through hole 43. In the thickness direction of the flexible display screen 100, the third through hole completely covers the light-transmitting hole 28 in the orthogonal projection of the display module 20.

[0131] Specifically, the outer peripheral surface 51 of the first reinforcing sheet 50 is connected to the wall of the first through hole 43 of the support layer 40. Along the thickness direction of the support layer 40, the first surface 53 of the first reinforcing sheet 50 is flush with the first connecting surface 41 of the support layer 40 (with certain dimensional tolerances allowed), and the second surface 54 of the first reinforcing sheet 50 is flush with the second connecting surface 42 of the support layer 40 (with certain dimensional tolerances allowed).

[0132] It should be noted that, along the thickness direction (Z-axis direction) of the flexible display screen 100, the orthographic projection of the third through hole in the display module 20 includes the orthographic projection of the area enclosed by the third through hole in the display module 20.

[0133] It is understood that in this embodiment, the first reinforcing sheet 50 is directly connected to the wall of the first through hole 43 of the support layer 40, without the need to open the first receiving groove 44 on the wall of the first through hole 43 of the support layer 40, thus simplifying the manufacturing process of the support layer 40.

[0134] This application provides a method for manufacturing a flexible display screen 100, including the following steps:

[0135] S1: A cover plate 10, a display module 20, a support layer 40, a first reinforcing sheet 50, and a second reinforcing sheet 60 are provided, and the cover plate 10 is placed on the surface of the display module 20 located on the light-emitting side. The cover plate 10 is transparent to visible light. The display module 20 has a light-transmitting hole 28 that penetrates the display module 20 along its thickness direction. The first reinforcing sheet 50 has a third through-hole, the diameter of which is larger than the diameter of the light-transmitting hole 28. The second reinforcing sheet 60 is transparent to visible light. The second reinforcing sheet 60 also has a fourth through-hole, the diameter of which is smaller than the diameter of the light-transmitting hole 28.

[0136] S2: A first through hole 43 is formed on the support layer 40. The diameter of the first through hole 43 is larger than the diameter of the light-transmitting hole 28, and the diameter of the first through hole 43 is equal to the diameter of the third through hole.

[0137] Specifically, the first through hole 43 can be formed by etching.

[0138] S3: A first receiving groove 44 is formed in the hole wall of the first through hole 43 of the support layer 40. The first receiving groove 44 is recessed in the hole wall of the first through hole 43 and surrounds the hole axis of the first through hole 43.

[0139] Specifically, the first receiving groove 44 can be formed by etching.

[0140] S4: An adhesive layer 30 is formed on the surface of the support layer 40 in the thickness direction, and the adhesive layer 30 surrounds the second through hole 31, the diameter of the second through hole 31 being larger than the diameter of the first through hole 43.

[0141] Specifically, the adhesive layer 30 is formed after the adhesive has cured.

[0142] S5: The first reinforcing sheet 50 is placed in the first receiving groove 44 of the support layer 40, and the first reinforcing sheet 50 is connected to the groove wall of the first receiving groove 44. The third through hole of the first reinforcing sheet 50 is coaxial with the first through hole 43 of the support layer 40 and they are interconnected.

[0143] S6: Place the second reinforcing sheet 60 in the second through hole 31 of the adhesive layer 30, and bond the second reinforcing sheet 60 to the support layer 40 and the display module 20 with the fixing adhesive 70. The fourth through hole of the second reinforcing sheet 60 is coaxial with the second through hole 31 of the adhesive layer 30 and they are interconnected.

[0144] S7: The support layer 40 is bonded to the display module 20 via the adhesive layer 30, specifically to the surface of the display module 20 facing away from the cover plate 10, and the light-transmitting hole 28, the first through hole 43, the second through hole 31, the third through hole, and the fourth through hole are made coaxial, thereby forming the flexible display screen 100. The light-transmitting hole 28, the first through hole 43, the second through hole 31, the third through hole, and the fourth through hole are interconnected to form the light-transmitting hole A.

[0145] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A flexible display screen, characterized in that, The flexible display includes a display module, a support layer, and an adhesive layer. The display module has a light-transmitting hole, the support layer has a first through-hole, and the adhesive layer has a second through-hole. The display module, the adhesive layer, and the support layer are stacked sequentially along the thickness direction of the flexible display. The light-transmitting hole is connected to the first through-hole and the second through-hole. Along the thickness direction of the flexible display, the orthographic projection of the first through-hole on the display module completely covers the light-transmitting hole, and the orthographic projection of the second through-hole on the support layer completely covers the first through-hole. The flexible display screen further includes a first reinforcing sheet and a second reinforcing sheet. Along the thickness direction of the flexible display screen, the first reinforcing sheet and the second reinforcing sheet are stacked and spaced apart. The hardness of the first reinforcing sheet is greater than that of the support layer. The first reinforcing sheet is connected to the hole wall of the first through hole and surrounds the hole axis of the first through hole. The first reinforcing sheet forms a third through hole. The third through hole communicates with the first through hole. The third through hole completely covers the light-transmitting hole in the orthographic projection of the display module. The hardness of the second reinforcing sheet is greater than that of the adhesive layer. The second reinforcing sheet is located inside the second through hole. The second reinforcing sheet is connected to the hole wall of the second through hole and surrounds the hole axis of the second through hole. The second reinforcing sheet forms a fourth through hole, which is connected to the second through hole.

2. The flexible display screen according to claim 1, characterized in that, The support layer is provided with a first receiving groove, which is recessed in the hole wall of the first through hole and surrounds the hole axis of the first through hole; The first reinforcing sheet is housed in the first receiving groove and is connected to the groove wall of the first receiving groove.

3. The flexible display screen according to claim 1, characterized in that, The first reinforcing sheet includes an outer peripheral surface, the first reinforcing sheet is located inside the first through hole, and the outer peripheral surface of the first reinforcing sheet is connected to the hole wall of the first through hole.

4. The flexible display screen according to claim 2 or 3, characterized in that, The second reinforcing sheet includes a first surface and a second surface, which are disposed opposite to each other along the thickness direction of the second reinforcing sheet; The first surface is connected to the display module, and the second surface is connected to the support layer.

5. The flexible display screen according to claim 4, characterized in that, The second reinforcing sheet is visible light transmittance, and along the radial direction of the light-transmitting hole, the second reinforcing sheet protrudes from the hole wall of the light-transmitting hole in the direction of the hole axis.

6. The flexible display screen according to claim 4, characterized in that, Along the radial direction of the light-transmitting hole, the wall of the fourth through hole is flush with the wall of the light-transmitting hole; or, Along the radial direction of the light-transmitting hole, the wall of the fourth through hole is recessed relative to the wall of the light-transmitting hole in a direction away from the hole axis of the light-transmitting hole.

7. The flexible display screen according to claim 4, characterized in that, The support layer is made of titanium alloy.

8. The flexible display screen according to claim 5, characterized in that, The adhesive layer is made of optical adhesive, and the second reinforcing sheet is made of thermoplastic polyester or polyimide.

9. The flexible display screen according to claim 1, characterized in that, The flexible display screen includes a first part, a second part, and a bendable part. The bendable part connects the first part and the second part. The light-transmitting hole, the first through hole, the second through hole, the third through hole, and the fourth through hole are all located in the first part.

10. A terminal device, characterized in that, The device includes a mid-frame, an optical sensor, and a flexible display screen as described in any one of claims 1-9, wherein the optical sensor and the flexible display screen are both connected to the mid-frame, and the optical axis of the optical sensor extends along the thickness direction of the terminal device. The optical axis of the optical sensor passes through the light-transmitting hole, the first through hole, the second through hole, the third through hole and / or the light-transmitting hole, the first through hole, the second through hole and the fourth through hole.

Images