Display module and electronic equipment

Abstract

The embodiment of the invention provides a display module and electronic equipment. The electronic equipment comprises a flexible display screen, a first middle frame, a second middle frame, a rotating shaft mechanism and a cover plate, the first middle frame and the second middle frame are arranged on the two opposite sides of the rotating shaft mechanism respectively, a first area is defined by the first middle frame, the second middle frame, the rotating shaft mechanism and the cover plate, and the flexible display screen is arranged in the first area; the first middle frame comprises a first bearing plate and a first frame which are fixedly connected, the first frame is arranged along the peripheral edge of the first bearing plate, the first frame protrudes out of the flexible display screen in the direction of the cover plate, and the cover plate is connected with the first frame. The cover plate comprises a first non-bending part, a second non-bending part and a bending part, the first non-bending part is opposite to the first middle frame, the second non-bending part is opposite to the second middle frame, the bending part and the rotating shaft mechanism have loudness, and the modulus of the first non-bending part is different from that of the bending part.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to a display module and an electronic device. Background Art

[0002] With the continuous development of display technology, electronic devices are becoming a trend in future mobile electronic products. When unfolded, electronic devices can provide a larger display area, improving viewing experience. When folded, electronic devices can be compact and easy to carry.

[0003] An electronic device includes at least one flexible display screen, which is composed of multiple layers of stacked components. When the phone is bent, the different layers of the flexible display screen may misalign. This misalignment occurs at the junction of the middle frame and the surface of the flexible display screen, and a protective structure can be installed to block it. Currently, a protective case is installed around the flexible display screen. The protective case includes a support portion connected to the frame and a protective portion located above the display surface. The support portion and the protective portion are connected, and the protective case extends from the middle frame to above the display surface of the display screen.

[0004] However, the protective case will widen the border of the electronic device and affect the display effect. There is a gap between the protective part of the protective case and the flexible display, which affects the user's holding experience. There is also a gap between the protective case and the OLED flexible display, which makes it easy for dust or foreign matter to accumulate in the gap, affecting the edge display effect and causing damage to the display. Summary of the Invention

[0005] The embodiments of the present application provide a display module and an electronic device, which solve the problem of a gap between a protective case and a display screen, which affects the screen-to-body ratio.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] In a first aspect of an embodiment of the present application, a display module is provided, which is used to connect with a first middle frame, a second middle frame, and a hinge mechanism; the display module includes: a flexible display screen, and a cover plate; the cover plate is arranged on the light-emitting side of the flexible display screen; the first middle frame, the second middle frame, and the hinge mechanism are all arranged on the side of the flexible display screen away from the light-emitting side; the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can rotate relative to each other through the hinge mechanism; the cover plate includes: a first non-bending portion, The second non-bending portion and the bending portion, the first non-bending portion is opposite to the first middle frame, the second non-bending portion is opposite to the second middle frame, the bending portion is opposite to the hinge mechanism, the first middle frame, the second middle frame, the hinge mechanism and the cover plate are enclosed into a first area, and the flexible display is arranged in the first area; the first middle frame includes a first supporting plate and a first frame that are fixedly connected, the first frame is arranged along the outer peripheral edge of the first supporting plate, the first non-bending portion is connected to the first frame; the modulus of the first non-bending portion and the bending portion are different. Thus, the cover plate is bonded to the frame to realize a full-screen design. This structure does not require widening the frame and has a better display effect. In addition, the display screen is arranged in the area enclosed by the middle frame and the cover plate, which can better protect the display screen, avoid gaps and gaps between the frame and the display screen, and provide a better user grip experience. In addition, the cover adopts a variable modulus design, which can make the modulus of the non-bending part greater than the modulus of the bending part. The non-bending part has a higher modulus, which can play a supporting role and better protect the flexible display screen, while the bending part has a lower modulus, so that the cover plate can be folded and bent with the flexible display screen, realizing a full-screen design in electronic devices.

[0008] In one optional implementation, the first non-bending portion and the bending portion are made of different materials. Thus, the bending and non-bending areas of the cover plate are made of different materials, enabling a variable modulus design for the cover plate, allowing it to fold and bend with the flexible display, thus enabling a full-screen design in electronic devices.

[0009] In one optional implementation, the first and second non-bending portions are made of at least one of glass, colorless polyimide (CPI), polymethyl methacrylate (PMMA), polycarbonate (PC), resin, polyethylene terephthalate (PET), and an organic material. This ensures that the non-bending portion has a high modulus, improving its reliability. The bending portion is made of at least one of colorless polyimide (CPI), polycarbonate (PC), resin, polyethylene terephthalate (PET), and an organic material, ensuring that the bending portion has a low modulus, improving its bending performance.

[0010] In an optional implementation, the first non-bending portion is connected to the first frame via an adhesive layer, thereby fixing the cover plate to the frame to better protect the flexible display screen.

[0011] In an optional implementation, the adhesive layer is formed by dispensing glue, thereby sealing the gap between the first non-bending portion and the first frame by dispensing glue, thereby better protecting the flexible display screen.

[0012] In an optional implementation, the bending portion includes a first portion, a second portion, and a third portion; when the display screen is in a flattened state, the first non-bending portion, the bending portion, and the second non-bending portion are distributed in a direction perpendicular to the thickness direction of the support member; when the display screen is in a folded state, the first portion and the second portion are in a bent state, and the bending direction of the first portion is different from the bending direction of the second portion, the third portion is in a non-bending state, the third portion is used to connect the first portion and the second portion, and the modulus of the first portion is different from the modulus of the third portion. Thus, the electronic device is a teardrop-shaped electronic device. When the electronic device is in a folded state, the bending directions of the first portion and the second portion are different, forming a teardrop shape. The electronic device with this structure occupies less space in the folded state, which is conducive to the miniaturization of the device and can achieve an ultra-thin and ultra-small folding radius R design in a limited space. That is, the cover plate can be used in teardrop-shaped electronic devices.

[0013] In one optional implementation, the first portion and the third portion are made of different materials. Thus, the cover plate adopts a variable modulus design. The third portion is a non-bending portion with a higher modulus, providing support and better protection for the flexible display. The first and second portions are bending portions with a lower modulus, enabling bending and folding, allowing the cover plate to fold and fold along with the flexible display.

[0014] In an optional implementation, the first frame protrudes from the flexible display screen in the direction of the cover plate. Thus, the protruding portion of the first frame can be used to protect the flexible display screen. For example, when the electronic device is an inward-folding electronic device, during the process of switching the electronic device from the unfolded state to the folded state, the first frame is used to protect the flexible display screen to prevent the flexible display screen from folding and causing impact, thereby damaging the flexible display screen. For another example, when the electronic device is an outward-folding electronic device, the protruding portion of the first frame is used to protect the flexible display screen to prevent the flexible display screen from being damaged by falling and impacting the electronic device. Thus, there is no need to set up a protective case, thereby increasing the screen-to-body ratio of the electronic device. In addition, by using the protruding portion of the first frame to protect the flexible display screen, the protective case is eliminated, which is also beneficial to improving the appearance consistency of the electronic device and avoiding gaps and step differences between the protective case and the first frame.

[0015] In one optional implementation, the second middle frame includes a second supporting plate and a second frame fixedly connected. The second frame is arranged along the outer edge of the second supporting plate, and the second non-bending portion is connected to the second frame. Thus, the second non-bending portion of the cover plate is bonded to the second frame, achieving a full-screen design. This structure does not require a widened frame and provides a better display effect.

[0016] In an optional implementation, the second frame protrudes from the flexible display screen toward the cover plate, thereby protecting the flexible display screen by utilizing the protruding portion of the second frame.

[0017] According to a second aspect of the embodiments of the present application, a display module is provided, which is used to connect with a first middle frame, a second middle frame, and a hinge mechanism; the display module includes: a flexible display screen, a cover plate, and a connection layer; the cover plate is arranged on the light-emitting side of the flexible display screen, and the connection layer is arranged on the side of the cover plate away from the flexible display screen; the first middle frame, the second middle frame, and the hinge mechanism are all arranged on the side of the flexible display screen away from the light-emitting side; the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can be connected by the hinge mechanism For rotation; the first middle frame, the second middle frame, the hinge mechanism and the cover plate are enclosed into a first area, and the flexible display screen is arranged in the first area; the cover plate includes: a first cover plate and a second cover plate, the first middle frame includes a first supporting plate and a first frame that are fixedly connected, the first frame is arranged along the outer peripheral edge of the first supporting plate, and the first cover plate is connected to the first frame; the first cover plate and the second cover plate are spaced apart, the connecting layer is arranged on the side of the cover plate away from the flexible display screen, and the connecting layer is respectively connected to the first cover plate and the second cover plate. Thus, by raising the frame, the cover plate and the frame are bonded to achieve a full-screen design. This structure does not require widening the frame and has a better display effect. In addition, the display screen is arranged in the area enclosed by the middle frame and the cover plate, which can better protect the display screen, avoid gaps and differences between the frame and the display screen, and provide a better user holding experience. In addition, the cover plate is divided into two parts: a first cover plate and a second cover plate, and the two cover plates are connected by a connecting layer, so that the first cover plate and the second cover plate can be folded and bent along with the flexible display screen, realizing a full-screen design in the electronic device.

[0018] In an optional implementation, a filling material is provided between the first cover plate and the second cover plate, thereby improving the display effect.

[0019] In one optional implementation, the filling material includes at least one of a buffer material and an optical material. Therefore, when a buffer material is used as the filling material, the folding and bending performance of the cover plate can be further improved. When an optical material is used as the filling material, the display effect at that location can be further enhanced.

[0020] In an optional implementation, the material of the connection layer includes: at least one of colorless polyimide CPI, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

[0021] In an optional implementation, the material of the cover plate includes at least one of glass, colorless polyimide CPI, polymethyl methacrylate film PMMA, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

[0022] In an optional implementation, the first cover plate includes a first part, a second part, a third part, and a fourth part that are connected to each other; when the display screen is in a flat state, the first part, the second part, the third part, and the fourth part are distributed in a direction perpendicular to the thickness direction of the support member; when the display screen is in a folded state, the first part and the third part are in a bent state, and the bending direction of the first part is different from the bending direction of the second part, and the second part and the fourth part are in a non-bent state. Thus, the electronic device is a teardrop-shaped electronic device. When the electronic device is in a folded state, the bending directions of the first part and the second part are different, forming a teardrop shape. The electronic device with this structure occupies less space in the folded state, which is conducive to the miniaturization of the device and can achieve an ultra-thin and ultra-small folding radius R design in a limited space. That is, the cover plate can be used in teardrop-shaped electronic devices.

[0023] In an optional implementation, the first frame protrudes from the flexible display screen toward the first cover plate.

[0024] In an optional implementation, the second middle frame includes a second supporting plate and a second frame that are fixedly connected. The second frame is arranged along the outer peripheral edge of the second supporting plate, and the second cover plate is connected to the second frame.

[0025] In an optional implementation, the second frame protrudes from the flexible display screen toward the second cover plate.

[0026] According to a third aspect of an embodiment of the present application, an electronic device is provided. The electronic device includes a first middle frame, a second middle frame, a hinge mechanism, and the display module described above.

[0027] An embodiment of the present application provides a display module and an electronic device, which includes: a flexible display screen, a first middle frame, a second middle frame, a hinge mechanism and a cover plate; the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can rotate relative to each other through the hinge mechanism; the first middle frame, the second middle frame, the hinge mechanism and the cover plate are arranged to form a first area, and the flexible display screen is arranged in the first area; the first middle frame includes a first supporting plate and a first frame that are fixedly connected, the first frame is arranged along the outer peripheral edge of the first supporting plate, and the cover plate is connected to the first frame. Thus, by raising the frame, the cover plate is bonded to the frame to achieve a full-screen design. This structure does not require widening the frame and has a better display effect. In addition, the display screen is arranged in the area enclosed by the middle frame and the cover plate, which can better protect the display screen and avoid gaps and differences between the frame and the display screen, so that the user has a better holding experience.

[0028] In some embodiments of the present application, the cover plate includes: a first non-bending portion, a second non-bending portion, and a bending portion, wherein the first non-bending portion is opposite to the first middle frame, and the second non-bending portion is opposite to the second middle frame, wherein the modulus of the first non-bending portion and the second non-bending portion is greater than the modulus of the bending portion. Thus, the cover plate adopts a variable modulus design, wherein the non-bending portion has a higher modulus, which can play a supporting role and better protect the flexible display, while the bending portion has a lower modulus, which can bend and fold, so that the cover plate can bend and fold along with the flexible display, realizing a full-screen design in the electronic device.

[0029] In other embodiments, the cover plate includes: a first cover plate and a second cover plate, the first cover plate and the second cover plate being spaced apart; and the electronic device further includes: a connection layer, the connection layer being disposed on a side of the cover plate away from the flexible display, and the connection layer being connected to the first cover plate and the second cover plate, respectively. Thus, the cover plate is divided into two parts: the first cover plate and the second cover plate, and the two cover plates are connected by the connection layer, so that the first cover plate and the second cover plate can be folded and bent with the flexible display, thereby realizing a full-screen design in the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic structural diagram of a foldable display terminal provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 A schematic diagram of the foldable display terminal shown in the unfolded state;

[0032] Figure 3 for Figure 1 A schematic diagram of the foldable display terminal shown in FIG. 1 is in a folded state;

[0033] Figure 4 for Figure 1 A schematic diagram of the foldable display terminal shown in the folded state;

[0034] Figure 5 Schematic diagram of the structure of a protective shell;

[0035] Figure 6 A schematic diagram of a partial structure of a foldable display terminal provided in an embodiment of the present application;

[0036] Figure 7 A schematic structural diagram of a first foldable display terminal provided in an embodiment of the present application;

[0037] Figure 8 for Figure 7 A schematic diagram of the folding display terminal in the outward folded state;

[0038] Figure 9 for Figure 7 The folding display in FIG is a schematic diagram of the terminal in the inward folded state;

[0039] Figure 10 A schematic structural diagram of a second foldable display terminal provided in an embodiment of the present application;

[0040] Figure 11 for Figure 10 The folding display terminal in FIG. 1 is a schematic diagram of the folded state;

[0041] Figure 12 A schematic structural diagram of a third foldable display terminal provided in an embodiment of the present application;

[0042] Figure 13 A schematic structural diagram of a fourth foldable display terminal provided in an embodiment of the present application;

[0043] Figure 14 for Figure 13 A schematic diagram of the folding display terminal in the outward folded state;

[0044] Figure 15 for Figure 13 The folding display in FIG is a schematic diagram of the terminal in the inward folded state;

[0045] Figure 16 A schematic structural diagram of a fifth foldable display terminal provided in an embodiment of the present application;

[0046] Figure 17 for Figure 16 The folding display terminal in FIG. 1 is a schematic diagram of the folded state;

[0047] Figure 18 A schematic diagram of a partial structure of another foldable display terminal provided in an embodiment of the present application;

[0048] Figure 19 This is a partial structural diagram of another foldable display terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0050] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0051] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0052] The present application provides an electronic device, which can be a foldable display terminal. The foldable display terminal includes: a tablet computer, a mobile phone, an e-reader, a remote control, a personal computer (PC), a laptop computer, a personal digital assistant (PDA), a vehicle-mounted device, an Internet-connected television, a wearable device, and other products with a display interface. The present application does not impose any special restrictions on the form of the foldable display terminal. For the sake of convenience, the following embodiments are all illustrated by taking the foldable display terminal as an example of a mobile phone.

[0053] In order to facilitate understanding of the foldable display terminal provided in the embodiment of the present application, Figure 1 , an existing foldable display terminal is introduced as follows:

[0054] like Figure 1 As shown, the foldable display terminal 1 includes a flexible display screen 10 .

[0055] The flexible display screen 10 is used to display images. In some embodiments of the present application, the flexible display screen 10 is a multi-layer structure. The flexible display screen 10 can be an active matrix organic light-emitting diode (AMOLED) display screen.

[0056] AMOLED displays are self-luminous and do not require a backlight module (BLM). Therefore, when the base substrate of an AMOLED display is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display can be bendable.

[0057] like Figure 1 As shown, the foldable display terminal 1 further includes a structural member 20 for supporting the flexible display screen 10 .

[0058] The structural member 20 includes a first middle frame 201 , a second middle frame 202 , and a rotating shaft mechanism 203 disposed between the first middle frame 201 and the second middle frame 202 .

[0059] The first middle frame 201 and the second middle frame 202 can be used to support the flexible display screen 10 , so that the flexible display screen 10 remains as flat as possible during use, and the non-display surface of the flexible display screen 10 is protected.

[0060] The rotation shaft 203 is connected to the first middle frame 201 and the second middle frame 202. The first middle frame 201 and the second middle frame 202 can rotate around the rotation shaft 203 respectively.

[0061] A portion of the flexible display 10 is secured to the first middle frame 201 via an adhesive layer, and a portion is secured to the second middle frame 202 via an adhesive layer. The remainder of the flexible display 10 is located between the first middle frame 201 and the second middle frame 202. The adhesive layer may be a thin film layer formed by coating with glue, and the specific form of the adhesive layer is not limited in this embodiment of the application. In addition, other electronic components may be provided on the first middle frame 201 and the second middle frame 202, such as a camera, earphones, receiver, buttons, batteries, etc., and the embodiment of the application does not limit the other electronic components provided on the first middle frame 201 and the second middle frame 202.

[0062] The first middle frame 201 and the second middle frame 202 can rotate along the axis OO of the shaft 203 respectively, thereby driving the flexible display screen 10 to fold or unfold. Figure 2 、 Figure 3 and Figure 4 As shown, the flexible display screen 10 can be bent and flattened.

[0063] Among them, Figure 2 As shown, when the included angle α between the first middle frame 201 and the second middle frame 202 is 180°, the flexible display screen 10 is in an unfolded state.

[0064] Figure 3This is a flattening process of the flexible display screen 10 from 180° to 0°, or a folding process of the flexible display screen 10 from 0° to 180°.

[0065] Or, as Figure 4 As shown, when the angle α between the first middle frame 201 and the second middle frame 202 is 0°, the flexible display screen 10 is in a folded state.

[0066] When the first middle frame 201 and the second middle frame 202 do not have bending properties, the area on the flexible display screen 10 connected to the first middle frame 201 through the adhesive layer cannot be bent. Figure 4 The first non-bending area 101 is shown.

[0067] The area on the flexible display screen 10 that is connected to the second middle frame 202 through the adhesive layer cannot be bent under the support of the second middle frame 202. Figure 4 The second non-bending region 102 is shown.

[0068] In addition, in the flexible display screen 10 , the portion between the first non-bending area 101 and the second non-bending area 102 is a bending area 103 that enables the foldable display terminal 1 to achieve a bending characteristic.

[0069] Among them, Figure 3 、 Figure 4 As shown, when the first middle frame 201 and / or the second middle frame 202 rotates around the rotation axis 203 so that the angle α between the first middle frame 201 and the second middle frame 202 decreases, the flexible display screen 10 bends accordingly.

[0070] The embodiment of the present application does not limit the structure of the first middle frame 201 and the second middle frame 202. The first middle frame 201 and the second middle frame 202 include, for example, a carrier plate and a frame surrounding the carrier plate. A printed circuit board (PCB), a camera, a battery and other electronic devices can be set on the surface of the carrier plate facing the back cover. The camera and the battery are not shown in the figure. The back cover is connected to the structural member 20 to form a receiving cavity for accommodating the above-mentioned PCB, camera, battery and other electronic devices. This can prevent external moisture and dust from invading the receiving cavity and affecting the performance of the above-mentioned electronic devices.

[0071] The flexible display screen 10 can be electrically connected to a PCB mounted on the carrier board through a flexible printed circuit (FPC) passing through the carrier board, thereby enabling the PCB to transmit display data to the flexible display screen 10 to control the flexible display screen 10 to display images.

[0072] The flexible display 10, structural member 20, and back cover can be arranged in different layers, and these layers can be parallel to each other. The plane in which each layer is located can be called the XY plane, and the direction perpendicular to the XY plane can be called the Z direction. In other words, the flexible display 10, structural member 20, and back cover can be arranged in layers in the Z direction.

[0073] It should be noted that the relevant drawings of the structural member 20 in this application are simplified structural schematic diagrams. The structural member 20 is not limited to the structure in the drawings, and may also include other structures, which will not be repeated here.

[0074] Figure 5 is a partial schematic diagram of a foldable display terminal. In some embodiments, see Figure 5 In order to protect the flexible display screen 10, a protective shell 30 can be set on the middle frame. The protective shell 30 includes: a supporting portion connected to the frame, and a protective portion arranged above the display surface. The supporting portion is connected to the protective portion. The protective shell 30 extends from the middle frame to above the display surface of the display screen.

[0075] However, the protective case 30 will widen the frame of the foldable display terminal, affecting the display effect. There is a gap between the protective part of the protective case 30 and the flexible display screen, which affects the user's holding experience. There is also a gap between the protective case 30 and the OLED flexible display screen, which makes it easy for dust or foreign matter to accumulate in the gap, affecting the edge display effect and causing damage to the display screen.

[0076] To this end, the present invention provides two improved foldable display terminals. By providing a cover plate on the flexible display, the cover plate and the middle frame form a cavity within which the flexible display can be placed, thereby better protecting the flexible display. Furthermore, the foldable display terminals of the present invention do not require an increased frame width, resulting in a better display quality and no surface drop, enhancing the user's grip experience.

[0077] Figure 6 This is a partial schematic diagram of a foldable display terminal provided by an embodiment of the present application. Figure 6 As shown, the foldable display terminal includes a cover plate 40 . The cover plate 40 is connected to the first middle frame 201 , and the flexible display screen 10 is arranged in the area enclosed by the cover plate 40 and the first middle frame 201 .

[0078] The foldable display terminal provided in the embodiment of the present application is provided with a cover plate 40 added above the flexible display screen 10, and the cover plate 40 is bonded and fixed to the frame. Figure 5 Compared to the protective case 30 shown in the figure, this structure does not require widening the frame, resulting in a better display effect. In addition, the display screen is set within the area surrounded by the middle frame and the cover plate, which can better protect the display screen and avoid gaps and differences between the frame and the display screen, providing a better grip experience for users.

[0079] Next reference Figure 7 The foldable display terminal includes: a flexible display screen 10, a first middle frame 201, a second middle frame 202, a hinge mechanism 203, and a cover 40. The first middle frame 201 and the second middle frame 202 are respectively arranged on opposite sides of the hinge mechanism 203, and the first middle frame 201 and the second middle frame 202 can rotate relative to each other through the hinge mechanism 203.

[0080] The first middle frame 201 , the second middle frame 202 , the hinge mechanism 203 and the cover plate 40 are surrounded by a first area, and the flexible display screen 10 is disposed in the first area.

[0081] The first middle frame 201 includes a first supporting plate 2011 and a first frame 2012 that are fixedly connected. The first frame 2012 is disposed along the outer edge of the first supporting plate 2011 . The cover plate 40 is connected to the first frame 2012 .

[0082] The second middle frame 202 includes a second supporting plate 2021 and a second frame 2022 that are fixedly connected. The second frame 2022 is arranged along the outer edge of the second supporting plate 2021 . The cover plate 40 is connected to the second frame 2022 .

[0083] The cover plate 40 may be a single laminate or a composite of multiple laminates. In some embodiments, the material or laminate structure of the cover plate 40 may be adjusted so that the cover plate 40 can be folded and bent together with the flexible display screen 10 .

[0084] For example, the cover plate 40 includes: a first non-bending portion 401, a second non-bending portion 402 and a bending portion 403, the first non-bending portion 401 is opposite to the first middle frame 201, the second non-bending portion 402 is opposite to the second middle frame 202, and the bending portion is opposite to the rotating shaft mechanism 203.

[0085] The first non-bending portion 401 and the bending portion 403 have different moduli.

[0086] In some embodiments, the modulus of the first non-bending portion 401 and the second non-bending portion 402 are both greater than the modulus of the bending portion 403. In this embodiment, modulus refers to the ratio of stress to strain of a material under stress. The larger the modulus value, the greater the stress that causes a certain elastic deformation of the material, that is, the greater the stiffness of the material, that is, the smaller the elastic deformation under a certain stress, the better the supporting performance. The smaller the modulus value, the better the bending performance. In this way, the cover plate adopts a variable modulus design, so that the modulus of the bending portion is smaller than the modulus of the non-bending portion, so that the cover plate can be folded and bent with the flexible display screen, realizing a full-screen design in the folding display terminal.

[0087] In order to make the modulus of the bending portion of the cover plate smaller than the modulus of the non-bending portion, in some embodiments, the materials of the bending portion and the non-bending portion can be adjusted so that the bending portion uses a material with a lower modulus and the non-bending portion uses a material with a lower modulus.

[0088] In other embodiments, the bending portion and the non-bending portion may be made of the same material, and the molding process (such as the curing process) of the bending portion and the non-bending portion may be adjusted, or the content of additives in the bending portion and the non-bending portion may be adjusted so that the modulus of the bending portion is smaller than the modulus of the non-bending portion.

[0089] In this way, the modulus of the bending portion is smaller than the modulus of the non-bending portion, so that the cover plate can be folded and bent along with the flexible display screen, realizing a full-screen design in the folding display terminal.

[0090] The foldable display terminal provided in the embodiments of the present application achieves a full-screen design by bonding the cover plate to the frame. This structure eliminates the need for widening the frame, resulting in a better display effect. Furthermore, the display screen is positioned within the area enclosed by the middle frame and cover plate, which better protects the display screen and avoids gaps and differences between the frame and the display screen, providing a better user experience. Furthermore, the cover plate adopts a variable modulus design, making the modulus of the bending portion smaller than the modulus of the non-bending portion. This allows the cover plate to fold and bend with the flexible display screen, thus achieving a full-screen design in the foldable display terminal.

[0091] In some embodiments, the first frame 2012 is flush with the flexible display screen 10 , or the first frame 2012 protrudes from the flexible display screen 10 toward the cover plate 40 .

[0092] The second frame 2022 is flush with the flexible display screen 10 , or the second frame 2022 protrudes from the flexible display screen 10 toward the second cover plate 42 .

[0093] In this way, the protruding parts of the first frame and the second frame can be used to protect the flexible display screen. For example, when the folding display terminal is an inward-folding electronic device, in the process of switching the folding display terminal from the unfolded state to the folded state, the first frame is used to protect the flexible display screen to prevent the flexible display screen from folding and causing impact, thereby damaging the flexible display screen. For another example, when the folding display terminal is an outward-folding electronic device, the protruding part of the first frame is used to protect the flexible display screen to prevent the flexible display screen from being damaged by falling and impacting the folding display terminal. Therefore, there is no need to set up a protective case, and the screen-to-body ratio of the folding display terminal is increased. In addition, by using the protruding part of the first frame to protect the flexible display screen, the protective case is eliminated, which is also conducive to improving the appearance consistency of the folding display terminal and avoiding gaps and step differences between the protective case and the first frame.

[0094] The present embodiment does not limit the material of the cover plate 40. In the following embodiment, the material of the first non-bending portion 401 and the second non-bending portion 402 includes at least one of glass, polyethylene terephthalate (PET), colorless polyimide (CPI), polymethyl methacrylate (PMMA), polycarbonate (PC), resin, and organic materials.

[0095] The material of the bending portion 403 includes at least one of colorless polyimide CPI, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

[0096] The embodiment of the present application does not limit the connection method between the cover plate 40 and the middle frame. In some embodiments, the first non-bending portion 401 is connected to the first frame 2012 through an adhesive layer.

[0097] The second non-bending portion 402 is connected to the second frame 2022 via an adhesive layer.

[0098] The present application does not limit the material of the adhesive layer. In some embodiments, the adhesive layer includes: adhesive backing, UV curable adhesive, foam adhesive, double-sided adhesive, and OCA optical adhesive.

[0099] For example, the adhesive layer is a double-sided adhesive, one side of which is connected to the cover plate 40 and the other side is connected to the frame.

[0100] The present application embodiment does not limit the molding process of the adhesive layer. In some embodiments, the adhesive layer can be molded by dispensing.

[0101] In some embodiments, as Figure 8 As shown, the foldable display terminal adopts an outward folding design. When in the folded state, the flexible display screen 10 is located outside the device.

[0102] In other embodiments, Figure 9 As shown, the foldable display terminal adopts an inward folding design. When in the folded state, the flexible display screen 10 is located inside the device.

[0103] In the above embodiment, the foldable display terminal is in a U-shape when in the bent state. In other embodiments, the foldable display terminal is in a teardrop shape when in the bent state.

[0104] like Figure 10 As shown, reference Figure 7The structural member 20 includes a first middle frame 201 , a rotating shaft mechanism 203 and a second middle frame 202 which are sequentially arranged along the x direction. The rotating shaft mechanism 203 is arranged between the first middle frame 201 and the second middle frame 202 .

[0105] Flexible display screen 10 may include a first non-bending zone 101, a first transition display zone 104, a bending zone 103, a fourth transition display zone 107, a second transition display zone 105, and a second non-bending zone 102, which are sequentially connected along the x-direction. First transition display zone 104 may be connected between first non-bending zone 101 and bending zone 103, and second transition display zone 105 may be connected between second non-bending zone 102 and bending zone 103.

[0106] In some embodiments, the cover plate 40 may include a non-bending portion and a bending portion connected in sequence. When the display screen is in a flat state, the bending portion and the non-bending portion are distributed along a direction perpendicular to the thickness direction of the support member.

[0107] The non-bending portion includes: a first non-bending portion 401, a second non-bending portion 402, and the bending portion includes: a first part 403, a second part (a first bending portion 404 and a second bending portion 405) and a third part (a first connecting portion 406 and a second connecting portion 407), and the third part is arranged between the first part and the second part.

[0108] The second portion includes a first bending portion 404 and a second bending portion 405 , and the third portion includes a first connecting portion 406 and a second connecting portion 407 .

[0109] The first non-bending portion 401 , the first bending portion 404 , the first connecting portion 406 , the first part 403 , the second connecting portion 407 , the second bending portion 405 , and the second non-bending portion 402 are connected in sequence.

[0110] The first non-bending portion 401 can be connected to the first non-bending zone 101, thereby providing protection for the first non-bending zone 101. The second non-bending portion 402 can be connected to the second non-bending zone 102, thereby providing protection for the second non-bending zone 102. The first portion 403 can be connected to the bending zone 103, thereby providing protection for the bending zone 103. The first bending portion 404 can be connected to the first transitional display zone 104, thereby providing protection for the first transitional display zone 104. The second bending portion 405 can be connected to the second transitional display zone 105, thereby providing protection for the second transitional display zone 105.

[0111] In some embodiments, as Figure 10As shown, the rotating shaft mechanism 203 may include, for example, a first structural member 2031, a rotating shaft (not shown), and a second structural member 2032, which are sequentially arranged along the x-direction. The rotating shaft is arranged between the first structural member 2031 and the second structural member 2032. The first structural member 2031 and the second structural member 2032 are both connected to the rotating shaft. The first structural member 2031 and the second structural member 2032 can respectively rotate about the rotating shaft. The first structural member 2031 and the second structural member 2032 can be door panel structures.

[0112] The first structural member 2031 can also be connected to the first middle frame 201, and the second structural member 2032 can also be connected to the second middle frame 202. The first structural member 2031 and the second structural member 2032 can rotate relative to the rotation axis. The mutual movement of the first structural member 2031 and the second structural member 2032 can drive the mutual movement of the first middle frame 201 and the second middle frame 202, realizing the opening and closing function of the foldable display terminal 1.

[0113] like Figure 9 、 Figure 10 As shown, a third transition display area 106 may be provided between the first transition display area 104 and the bending area 103. The first connecting portion 406 may be correspondingly attached to the third transition display area 106, thereby providing protection for the third transition display area 106.

[0114] A fourth transition display area 107 may be provided between the second transition display area 105 and the bending area 103. The second connecting portion 407 may be attached to the fourth transition display area 107 to protect the fourth transition display area 107.

[0115] like Figure 10 As shown, the first non-bending area 101 is connected to the first middle frame 201 through the first adhesive layer 301 , and the second non-bending area 102 is connected to the second middle frame 202 through the second adhesive layer 302 .

[0116] Similarly, the third transition display area 106 may be connected to the first structural member 2031 via the third adhesive layer 303 , and the fourth transition display area 107 may be connected to the second structural member 2032 via the fourth adhesive layer 304 .

[0117] In one example, when the flexible display screen 10 is in the unfolded state, the first non-bending area 101, the first transition display area 104, the bending area 103, the second transition display area 105, and the second non-bending area 102 can all be flat.

[0118] When the flexible display screen 10 is in the unfolded state, the cover plate 40 can be in the unfolded state, and the first non-bending portion 401, the first bending portion 404, the first portion 403, the second bending portion 405, and the second non-bending portion 402 can all be flat. The first non-bending portion 401 being flat can mean that any two different positions of the first non-bending portion 401 can be considered to be arranged on the same plane.

[0119] like Figure 11 As shown, when the flexible display screen 10 is in the folded state, the bending area 103 can be in a bent state. The first portion 403 can be in a bent state.

[0120] When the flexible display screen 10 is in the folded state, the first non-bending area 101 and the second non-bending area 102 can both be flat. The first non-bending portion 401 and the second non-bending portion 402 can both be flat.

[0121] When the flexible display screen 10 is in the folded state, the first transitional display area 104 and the second transitional display area 105 can both be in a (slightly) curved state (the curvature in the (slightly) curved state can be smaller than the curvature in the folded state). The curvature of the first transitional display area 104 can be smaller than that of the bending zone 103, and the curvature of the second transitional display area 105 can be smaller than that of the bending zone 103. The first transitional display area 104 can serve as a transition between the flat state of the first non-bending zone 101 and the curved state of the bending zone 103, and the second transitional display area 105 can serve as a transition between the flat state of the second non-bending zone 102 and the curved state of the foldable display area 103.

[0122] When the flexible display screen 10 is in the folded state, the first bent portion 404 and the second bent portion 405 can both be in a (slightly) curved state, wherein the curvature of the first bent portion 404 can be smaller than the curvature of the first portion 403, and the curvature of the second bent portion 405 can be smaller than the curvature of the first portion 403. The first bent portion 404 can serve as a transition between the flat state of the first non-bending portion 401 and the curved state of the first portion 403, and the second bent portion 405 can serve as a transition between the flat state of the second non-bending portion 402 and the curved state of the first portion 403.

[0123] In the embodiment of the present application, by providing a first bending portion 404 and a second bending portion 405 on the cover plate 40, the first non-bending portion 401 and the second non-bending portion 402 can be relatively tightly fitted together. In other words, the space between the first non-bending portion 401 and the second non-bending portion 402 is relatively small. For example, the second non-bending portion 402 and the first non-bending portion 401 can be arranged parallel to each other. When a user places the foldable display terminal 1 in a pocket or bag, for example, it is relatively difficult for small components in the pocket or bag to fall into the space between the first non-bending portion 401 and the second non-bending portion 402, which helps to improve the protection of the flexible display 10. In addition, the area of the foldable display terminal 1 that is relatively far away from the foldable area can be relatively thin, laying the foundation for reducing the thickness of the foldable display terminal 1.

[0124] When the flexible display screen 10 is in the folded state, the third transition display area 106 and the fourth transition display area 107 are in the non-bent state.

[0125] The first connecting portion 406 is in a non-bent state. For example, when the flexible display screen 10 is in a folded state, the first bending portion 404 can be in an outwardly curved state, and the first portion 403 can be in an inwardly curved state. The first connecting portion 406 can be flat. The first connecting portion 406 can serve as a transition between the outward (slightly) curved state of the first bending portion 404 and the inwardly curved state of the first portion 403.

[0126] When the flexible display 10 is folded, the second connecting portion 407 is in a non-bent state. For example, when the flexible display 10 is folded, the second bending portion 405 can be in an outwardly curved state, and the first portion 403 can be in an inwardly curved state. The second connecting portion 407 can be flat. The second connecting portion 407 can serve as a transition between the outward (slightly) curved state of the second bending portion 405 and the inwardly curved state of the first portion 403.

[0127] In some embodiments, the first portion 403 and the second portion (the first bent portion 404 and the second bent portion 405 ) may be made of the same material.

[0128] The third portion (the first connecting portion 406 and the second connecting portion 407 ), the first non-bending portion 401 , and the second non-bending portion 402 may be made of the same material.

[0129] In order to improve the bending performance of the cover plate 40, the modulus of the first portion 403 and the modulus of the second portion (the first bending portion 404 and the second bending portion 405) can be made smaller than the modulus of the third portion (the first connecting portion 406 and the second connecting portion 407).

[0130] For example, to improve the bending performance of the cover plate 40, a low modulus material can be used in the bending area (the first portion 403 and the second portion (the first bending portion 404 and the second bending portion 405)) of the cover plate 40. For example, the low modulus material includes at least one of: colorless polyimide (CPI), polycarbonate (PC), resin, polyethylene terephthalate (PET), and an organic material.

[0131] To better protect the flexible display 10, the non-bending region of the cover 40 (the third portion (first connecting portion 406 and second connecting portion 407), the first non-bending portion 401, and the second non-bending portion 402) can be made of a high-modulus material. For example, high-modulus materials include at least one of glass, colorless polyimide (CPI), polymethyl methacrylate (PMMA), polycarbonate (PC), resin, polyethylene terephthalate (PET), and organic materials.

[0132] In the above embodiment, when the foldable display terminal is in a folded state, the first bent portion 404 and the first portion 403 of the cover plate 40 have different bending directions, forming a teardrop shape. The foldable display terminal with this structure occupies less space in the folded state, which is conducive to the miniaturization of the device and can achieve an ultra-thin and ultra-small folding radius R design in a limited space. That is, the cover plate can be used in a teardrop-shaped foldable display terminal.

[0133] In the embodiment of the present application, a cover plate is provided above the flexible display screen to realize a full-screen design. This structure does not require widening of the frame, and the display effect is better. In addition, the display screen is provided in the area surrounded by the middle frame and the cover plate, which can better protect the display screen, avoid gaps and gaps between the frame and the display screen, and provide a better user grip experience. The cover plate in this embodiment adopts a variable modulus design. The modulus of the non-bending part is higher, which can play a supporting role and better protect the flexible display screen, while the modulus of the bending part is lower, which can realize bending and folding, so that the cover plate can fold and bend with the flexible display screen, realizing a full-screen design in the folding display terminal.

[0134] In the above embodiment, the cover plate 40 is divided into a bending portion and a non-bending portion. By adjusting the modulus of the cover plate 40, the bending performance of the foldable display terminal can be taken into account while achieving a full screen. In other embodiments, the present application also provides a foldable display terminal, in which the cover plate 40 can be divided into two parts: a first cover plate 41 and a second cover plate 42, and the two cover plates 40 are connected by a connecting layer 50. When the first middle frame 201 and / or the second middle frame 202 rotates around the rotation axis 203, so that the angle α between the first middle frame 201 and the second middle frame 202 decreases, the flexible display 10 bends accordingly, and the first cover plate 41 and the second cover plate 42 can fold and bend along with the flexible display 10.

[0135] like Figure 12As shown, the foldable display terminal includes: a flexible display screen 10, a first middle frame 201, a second middle frame 202, a hinge mechanism 203, a cover plate 40 and a connecting layer 50; the arrangement of the first middle frame 201, the second middle frame 202 and the hinge mechanism 203 can refer to the above embodiment and will not be repeated here.

[0136] The cover plate 40 includes: a first cover plate 41 and a second cover plate 42. The first middle frame 201 includes a first supporting plate 2011 and a first frame 2012 that are fixedly connected. The first frame 2012 is arranged along the outer edge of the first supporting plate 2011. The first frame 2012 protrudes from the flexible display screen 10 toward the direction of the first cover plate 41. The first cover plate 41 and the first frame 2012 are connected.

[0137] The second middle frame 202 includes a second supporting plate 2021 and a second frame 2022 that are fixedly connected. The second frame 2022 is arranged along the outer edge of the second supporting plate 2021. The second cover plate 42 is connected to the second frame 2022. The second frame 2022 protrudes from the flexible display screen 10 toward the second cover plate 42.

[0138] The first cover plate 41 and the second cover plate 42 are spaced apart from each other. The connection layer 50 is disposed on a side of the cover plate 40 away from the flexible display screen 10 , and the connection layer 50 is connected to the first cover plate 41 and the second cover plate 42 respectively.

[0139] In some embodiments, as Figure 13 As shown, in order to improve the display effect, a filling material 408 is provided between the first cover plate 41 and the second cover plate 42 .

[0140] The present embodiment does not limit the material of the filling material 408. In some embodiments, the filling material 408 includes at least one of a buffer material and an optical material.

[0141] For example, the filling material 408 includes transparent materials such as OCA optical glue, resin, and foam glue.

[0142] The embodiment of the present application does not limit the material of the connection layer 50. In some embodiments, the material of the connection layer 50 includes at least one of colorless polyimide CPI, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

[0143] The present embodiment does not limit the material of the cover plate 40. In some embodiments, the material of the cover plate 40 includes at least one of glass, colorless polyimide (CPI), polymethyl methacrylate (PMMA), polycarbonate (PC), resin, polyethylene terephthalate (PET), and organic materials.

[0144] In some embodiments, as Figure 14 As shown, the foldable display terminal adopts an outward folding design. When in the folded state, the flexible display screen 10 is located outside the device.

[0145] In other embodiments, Figure 15 As shown, the foldable display terminal adopts an inner folding design. When in the folded state, the flexible display screen 10 is located inside the device.

[0146] In the above embodiment, the foldable display terminal is in a U-shape when in the bent state. In other embodiments, the foldable display terminal is in a teardrop shape when in the bent state.

[0147] like Figure 16 As shown, reference Figure 13 Flexible display screen 10 may include a first non-bending zone 101, a first transition display zone 104, a bending zone 103, a fourth transition display zone 107, a second transition display zone 105, and a second non-bending zone 102, which are sequentially connected along the x-direction. First transition display zone 104 may be connected between first non-bending zone 101 and bending zone 103, and second transition display zone 105 may be connected between second non-bending zone 102 and bending zone 103.

[0148] The cover plate 40 includes a first cover plate 41 and a second cover plate 42. The first non-bending area 101 and the first transition display area 104 are opposite to the first cover plate 41. The fourth transition display area 107, the second transition display area 105, and the second non-bending area 102 are opposite to the second cover plate 42.

[0149] In some embodiments, the first cover plate 41 and the second cover plate 42 are spaced apart from each other, and the first cover plate 41 and the second cover plate 42 are connected by a connection layer 50 .

[0150] In other embodiments, see Figure 16 A filling material 408 is provided between the first cover plate 41 and the second cover plate 42 .

[0151] The present embodiment does not limit the material of the filling material 408. In some embodiments, the filling material 408 includes at least one of a buffer material and an optical material.

[0152] For example, the filling material 408 may include transparent materials such as OCA optical glue, resin, and foam glue.

[0153] The following description will be made by taking an example where the filling material 408 is disposed between the third bending portion 4031 and the fourth bending portion 4032 .

[0154] In some embodiments, the bending region 103 may correspond to the filling material 408 .

[0155] The first non-bending area 101 is connected to the first middle frame 201 through the first adhesive layer 301 , and the second non-bending area 102 is connected to the second middle frame 202 through the second adhesive layer 302 .

[0156] Similarly, the third transition display area 106 may be connected to the first structural member 2031 via the third adhesive layer 303 , and the fourth transition display area 107 may be connected to the second structural member 2032 via the fourth adhesive layer 304 .

[0157] In one example, when the flexible display screen 10 is in the unfolded state, the first non-bending area 101, the first transition display area 104, the bending area 103, the second transition display area 105, and the second non-bending area 102 can all be flat.

[0158] When the flexible display 10 is in the unfolded state, the cover plate 40 can be in the unfolded state, and the first cover plate 41, the filling material 408, and the second cover plate 42 can all be flat. The first cover plate 41 being in the flat state can mean that any two different positions of the first cover plate 41 can be considered to be arranged on the same plane.

[0159] like Figure 17 As shown, when the flexible display screen 10 is in the folded state, the bending region 103 can be in a bent state. The filling material 408 can be in a bent state.

[0160] When the flexible display screen 10 is in the folded state, the first non-bending zone 101 and the second non-bending zone 102 can both be flat. The first transitional display zone 104 and the second transitional display zone 105 can both be (slightly) curved (the curvature in the (slightly) curved state can be smaller than the curvature in the folded state). The curvature of the first transitional display zone 104 can be smaller than that of the bending zone 103, and the curvature of the second transitional display zone 105 can be smaller than that of the bending zone 103. The first transitional display zone 104 can serve as a transition between the flat state of the first non-bending zone 101 and the curved state of the bending zone 103, and the second transitional display zone 105 can serve as a transition between the flat state of the second non-bending zone 102 and the curved state of the foldable display zone 103.

[0161] When the flexible display screen 10 is in the folded state, the first cover plate 41 and the second cover plate 42 may be flat, and the filling material 408 may serve as a transition between the first cover plate 41 and the second cover plate 42 .

[0162] By dividing the cover plate 40 into two parts, the embodiment of the present application facilitates relatively tight adhesion of the flexible display screen 10. Furthermore, the area of the foldable display terminal 1 relatively far from the foldable area can be relatively thin, laying the foundation for reducing the thickness of the foldable display terminal 1.

[0163] In this embodiment, when the foldable display terminal is in a folded state, the flexible display screen forms a teardrop shape. The foldable display terminal with this structure occupies less space in the folded state, which is conducive to the miniaturization of the device and can achieve an ultra-thin and ultra-small folding radius R design in a limited space. That is, the cover plate can be used in a teardrop-shaped foldable display terminal.

[0164] In the embodiment of the present application, a cover plate is provided above the flexible display screen to achieve a full-screen design. This structure does not require widening the frame, and the display effect is better. In addition, the display screen is provided within the area enclosed by the middle frame and the cover plate, which can better protect the display screen and avoid gaps and differences between the frame and the display screen, providing a better user grip experience. In this embodiment, the cover plate is divided into two parts: a first cover plate and a second cover plate, and the two cover plates are connected by a connecting layer, so that the first cover plate and the second cover plate can fold and bend with the flexible display screen, realizing a full-screen design in a teardrop-shaped folding display terminal.

[0165] In the above embodiments, a full-screen design is achieved by providing a cover plate above the flexible display screen. In other embodiments, a filling material may be provided between the flexible display screen and the frame to achieve a full-screen design.

[0166] Figure 18 This is a partial structural diagram of another foldable display terminal provided in an embodiment of the present application. Figure 18 As shown, the foldable display terminal also includes: a colloid portion 60, the inner circumference of the first frame 2012 and the outer circumference of the flexible display screen 10 are spaced apart, and the colloid portion 60 is set between the inner circumference of the first frame 2012 and the outer circumference of the flexible display screen 10, and the inner circumference of the first frame 2012 and the outer circumference of the flexible display screen 10 can be bonded through the colloid portion 60.

[0167] In some embodiments, the colloid portion 60 is flush with the first frame 2012 .

[0168] The embodiments of the present application do not limit the material of the colloid part. In some embodiments, the colloid part 60 can be made of liquid glue. For example, the colloid part 60 is a UV curing glue. For example, the colloid part 60 is an epoxy resin glue or a two-component adhesive. For example, when assembling the flexible display screen 10 and the structural member 20, the liquid glue can be injected into the inner peripheral surface of the first frame 2012, and then the flexible display screen 10 is fixed to the first supporting plate 2011 to squeeze the liquid glue, so that the liquid glue spreads in the gap between the inner peripheral surface of the first frame 2012 and the outer peripheral surface of the flexible display screen 10 and fills the entire gap.

[0169] In this embodiment, glue or filling is added between the flexible display and the frame to achieve a full-screen effect. The glue or filling area can be flush with the flexible display or exceed the flexible display to achieve a protective effect.

[0170] In some embodiments, the first frame 2012 is flush with the flexible display screen or protrudes from the flexible display screen 10 in a direction away from the supporting plate 2011 .

[0171] The foldable display terminal provided in the embodiment of the present application can use the first frame 2012 to protect the flexible display screen 10. For example, when the foldable display terminal is an inward-folding electronic device, during the process of switching the foldable display terminal from the unfolded state to the folded state, the first frame 2012 is used to protect the flexible display screen 10 to prevent the flexible display screen 10 from being folded and causing an impact, thereby damaging the flexible display screen 10. For another example, when the foldable display terminal is an outward-folding electronic device, the protruding portion of the first frame 2012 is used to protect the flexible display screen 10 to prevent the flexible display screen 10 from being damaged by the impact caused by the foldable display terminal falling. Therefore, there is no need to set up Figure 5 The protective case 30 shown improves the screen-to-body ratio of the foldable display terminal. Furthermore, the protruding portion of the first frame 2012 is utilized to protect the flexible display 10, eliminating the protective case 30. This also helps, at least to a certain extent, improve the appearance consistency of the foldable display terminal by eliminating gaps and step differences between the protective case 30 and the first frame 2012. Furthermore, the colloid portion 60 can also bond the outer circumference of the flexible display 10 to the inner circumference of the first frame 2012 to achieve a fixed connection between the two.

[0172] In the above embodiment, the colloid portion 60 is provided only between the inner peripheral surface of the first frame 2012 and the outer peripheral surface of the flexible display screen 10. In other embodiments, the colloid portion 60 can also extend toward the surface of the flexible display screen 10 to better protect the flexible display screen 10.

[0173] Figure 19 This is a partial structural diagram of another foldable display terminal provided in an embodiment of the present application. Figure 19 As shown, reference Figure 18 The colloid portion 60 is divided into a first colloid portion 601 and a second colloid portion 602. The first colloid portion 601 is disposed between the inner circumference of the first frame 2012 and the outer circumference of the flexible display screen 10, and the first colloid portion 601 is flush with the flexible display screen 10. A portion of the second colloid portion 602 is disposed on the first colloid portion 601, and the other portion is disposed on the flexible display screen 10.

[0174] The embodiment of the present application does not limit the scope of the second colloid portion. In some embodiments, the flexible display screen 10 includes a display area and a non-display area, and the non-display area is arranged around the display area. The second colloid portion 602 can cover the non-display area of the flexible display screen 10.

[0175] The embodiment of the present application does not limit the shape of the second colloid portion. In some implementations, the thickness of the second colloid portion 602 gradually decreases along the x-direction. In this way, the height difference between the frame 2012 and the flexible display screen 10 is avoided to affect the hand feel.

[0176] The embodiment of the present application does not limit the molding method of the colloid part 60. In some embodiments, the first colloid part 601 and the second colloid part 602 can be molded separately and connected together.

[0177] In other embodiments, the first colloid part 601 and the second colloid part 602 may be integrally formed.

[0178] The embodiments of the present application do not limit the material of the colloid part. In some embodiments, the colloid part 60 can be made of liquid glue. For example, the colloid part 60 is a UV curing glue. For example, the colloid part 60 is an epoxy resin glue or a two-component adhesive. For example, when assembling the flexible display screen 10 and the structural member 20, liquid glue can be injected into the inner peripheral surface of the first frame 2012, and then the flexible display screen 10 of the flexible display screen 10 is fixed to the first supporting plate 2011 to squeeze the liquid glue, so that the liquid glue spreads in the gap between the inner peripheral surface of the first frame 2012 and the outer peripheral surface of the flexible display screen 10 and fills the entire gap to form a first colloid part 601. The excess liquid glue will also spread to the non-display area of the flexible display screen 10 to form a second colloid part 602.

[0179] In the foldable display terminal provided in this embodiment of the present application, the colloid portion 60 is divided into a first colloid portion 601 and a second colloid portion 602. The second colloid portion 602 extends onto the flexible display 10, thereby improving the sealing and protection between the first frame 2012 and the flexible display 10. The second colloid portion is only provided in the non-display area of the flexible display 10 to avoid affecting the display quality of the flexible display 10. In addition, the thickness of the second colloid portion 602 gradually decreases along the x-direction, achieving a full-screen appearance in the foldable display while improving the user's grip.

[0180] An embodiment of the present application provides a foldable display terminal, comprising: a flexible display screen, a first middle frame, a second middle frame, a hinge mechanism, and a cover plate; the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can rotate relative to each other through the hinge mechanism; the first middle frame, the second middle frame, the hinge mechanism, and the cover plate are arranged to form a first area, and the flexible display screen is arranged in the first area; the first middle frame includes a fixedly connected first supporting plate and a first frame, the first frame is arranged along the outer peripheral edge of the first supporting plate, the first frame protrudes from the flexible display screen in the direction of the cover plate, and the cover plate is connected to the first frame. Thus, by raising the frame and bonding the cover plate to the frame, a full-screen design is achieved. This structure does not require widening the frame, and the display effect is better. In addition, the display screen is arranged in the area enclosed by the middle frame and the cover plate, which can better protect the display screen, avoid gaps and differences between the frame and the display screen, and provide a better user gripping experience.

[0181] In some embodiments of the present application, the cover plate includes: a first non-bending portion, a second non-bending portion, and a bending portion, wherein the first non-bending portion is opposite to the first middle frame, and the second non-bending portion is opposite to the second middle frame, wherein the modulus of the first non-bending portion and the second non-bending portion is greater than the modulus of the bending portion. Thus, the cover plate adopts a variable modulus design, wherein the non-bending portion has a higher modulus, which can provide support and better protect the flexible display, while the bending portion has a lower modulus, which can bend and fold, so that the cover plate can fold and bend with the flexible display, realizing a full-screen design in a foldable display terminal.

[0182] In other embodiments, the cover plate includes: a first cover plate and a second cover plate, the first cover plate and the second cover plate being spaced apart; and the foldable display terminal further includes: a connecting layer, the connecting layer being disposed on a side of the cover plate away from the flexible display screen and connected to the first cover plate and the second cover plate, respectively. Thus, the cover plate is divided into two parts: the first cover plate and the second cover plate, and the connecting layer connects the two cover plates, allowing the first cover plate and the second cover plate to fold and bend with the flexible display screen, thereby realizing a full-screen design in the foldable display terminal.

[0183] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A display module, characterized in that: The display module is used to connect with the first middle frame, the second middle frame and the hinge mechanism, and the display module includes: a flexible display screen and a cover plate; The cover plate is arranged on the light-emitting surface side of the flexible display screen, the first middle frame, the second middle frame and the hinge mechanism are all arranged on the side away from the light-emitting surface of the flexible display screen, the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can rotate relative to each other via the hinge mechanism; The cover plate includes: a first non-bending portion, a second non-bending portion, and a bending portion, wherein the first non-bending portion is opposite to the first middle frame, the second non-bending portion is opposite to the second middle frame, and the bending portion is opposite to the hinge mechanism. The first middle frame, the second middle frame, the hinge mechanism, and the cover plate are surrounded by a first area, and the flexible display is disposed in the first area. The first middle frame includes a first supporting plate and a first frame that are fixedly connected, the first frame is arranged along the outer peripheral edge of the first supporting plate, and the first non-bending portion is connected to the first frame; The first non-bending portion and the bending portion have different moduli.

2. The display module according to claim 1, wherein: The material of the first non-bending portion is different from that of the bending portion.

3. The display module according to claim 1 or 2, characterized in that: The materials of the first non-bending part and the second non-bending part include: at least one of glass, colorless polyimide CPI, polymethyl methacrylate film PMMA, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials; the material of the bending part includes at least one of colorless polyimide CPI, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

4. The display module according to any one of claims 1 to 3, wherein: The first non-bending portion is connected to the first middle frame through an adhesive layer.

5. The display module according to any one of claims 1 to 4, characterized in that: The adhesive layer is formed by dispensing.

6. The display module according to claim 5, wherein: The bending portion includes a first portion, a second portion and a third portion; When the flexible display screen is in a folded state, the first part and the second part are in a bent state, and the bending direction of the first part is different from the bending direction of the second part. The third part is in a non-bent state. The third part is used to connect the first part and the second part, and the modulus of the first part is different from the modulus of the third part.

7. The display module according to claim 6, wherein: The third portion and the first portion are made of different materials.

8. The display module according to any one of claims 1 to 7, wherein: The first middle frame protrudes from the flexible display screen along a direction close to the cover plate.

9. The display module according to any one of claims 1 to 8, wherein: The second middle frame includes a second supporting plate and a second frame that are fixedly connected. The second frame is arranged along the outer peripheral edge of the second supporting plate, and the second non-bending portion is connected to the second frame.

10. The display module according to claim 9, wherein: The second middle frame protrudes from the flexible display screen along a direction close to the cover plate.

11. A display module, characterized in that: The display module is connected to the first middle frame, the second middle frame and the hinge mechanism, and the display module includes: a flexible display screen, a cover plate and a connecting layer; The cover plate is arranged on the light-emitting surface of the flexible display screen, and the connecting layer is arranged on the surface of the cover plate away from the flexible display screen; the first middle frame, the second middle frame and the hinge mechanism are all arranged on a side away from the light-emitting surface of the flexible display screen, and the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can rotate relative to each other via the hinge mechanism; The first middle frame, the second middle frame, the hinge mechanism, and the cover plate are arranged to form a first area, and the flexible display screen is arranged in the first area; The cover plate includes: a first cover plate and a second cover plate, the first cover plate and the second cover plate are spaced apart, the first cover plate is opposite to the first middle frame, the second cover plate is opposite to the second middle frame, and the first cover plate and the second cover plate are both connected to the connection layer; The first middle frame includes a first supporting plate and a first frame that are fixedly connected. The first frame is arranged along the outer peripheral edge of the first supporting plate. The first cover plate is connected to the first frame.

12. The display module according to claim 11, wherein: A filling material is provided between the first cover plate and the second cover plate.

13. The display module according to claim 12, wherein: The filling material includes at least one of a buffer material and an optical material.

14. The display module according to any one of claims 11 to 13, characterized in that: The material of the connecting layer includes: at least one of colorless polyimide CPI, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

15. The display module according to any one of claims 11 to 14, characterized in that: The material of the cover plate includes at least one of glass, colorless polyimide CPI, polymethyl methacrylate film PMMA, polycarbonate PC, resin, polyethylene terephthalate PET, and organic materials.

16. The display module according to any one of claims 11 to 15, characterized in that: The flexible display screen includes a non-bending portion, a first bending portion, and a second bending portion; When the flexible display screen is in a folded state, the first bending portion and the second bending portion are in a bent state, and the bending directions of the first bending portion and the second bending portion are different.

17. The display module according to any one of claims 11 to 16, characterized in that: The first frame protrudes from the flexible display screen toward the first cover plate.

18. The display module according to any one of claims 11 to 17, wherein: The second middle frame includes a second supporting plate and a second frame that are fixedly connected. The second frame is arranged along the outer peripheral edge of the second supporting plate. The second cover plate is connected to the second frame.

19. The display module according to claim 18, wherein: The second frame protrudes from the flexible display screen toward the second cover plate.

20. An electronic device, characterized in that: include: A first middle frame, a second middle frame, a hinge mechanism, and a display module as described in any one of claims 1 to 19, wherein the first middle frame, the second middle frame, and the hinge mechanism are all arranged on a side away from the light-emitting surface of the flexible display screen, the first middle frame and the second middle frame are respectively arranged on opposite sides of the hinge mechanism, and the first middle frame and the second middle frame can rotate relative to each other through the hinge mechanism.

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