CN111833750A

CN111833750A - Folding screen assembly and electronic equipment

Info

Publication number: CN111833750A
Application number: CN202010699685.9A
Authority: CN
Inventors: 刘敏
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-10-27

Abstract

The application relates to the technical field of electronic equipment, specifically discloses a folding screen subassembly and electronic equipment, this folding screen subassembly includes: the cover plate is used for covering the camera module and comprises a flexible substrate layer and a transparent supporting layer which are sequentially stacked, and the thickness of the transparent supporting layer is larger than or equal to a preset thickness; the display module is arranged on one side of the flexible substrate, which is far away from the transparent supporting layer, and a through hole is formed in the display module; the camera module is at least partially accommodated in the through hole, and external light rays sequentially penetrate through the cover plate and the through hole to enter the lens of the camera module. In this way, the glare problem of camera module that this application can solve because of inside and outside pressure differential of transparent supporting layer or local unevenness influence the surface peak valley value on transparent supporting layer surface and arouse improves the holistic intensity of apron, avoids folding screen assembly's damage.

Description

Folding screen assembly and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of electronic equipment, in particular to a folding screen assembly and electronic equipment.

Background

With the development of electronic equipment technology, electronic equipment such as mobile phones and tablet computers are increasingly popular with people. Including the display screen subassembly in the electronic equipment, but the display screen subassembly belongs to fragile article, and especially the apron corresponds the position intensity of camera not enough, because the electronic equipment accident falls or collides with and leads to the apron to break easily.

Disclosure of Invention

The embodiment of the application provides a folding screen subassembly and electronic equipment, can solve the not enough problem of position intensity of apron correspondence camera among the correlation technique, technical scheme is as follows:

in one aspect, the present application provides a folding screen assembly comprising: the cover plate is used for covering the camera module and comprises a flexible substrate layer and a transparent supporting layer which are sequentially stacked, and the thickness of the transparent supporting layer is larger than or equal to a preset thickness; the display module is arranged on one side of the flexible substrate, which is far away from the transparent supporting layer, and a through hole is formed in the display module; the camera module is at least partially accommodated in the through hole, and external light rays sequentially penetrate through the cover plate and the through hole to enter the lens of the camera module.

In another aspect, the present application provides an electronic device, comprising: the folding screen assembly is the folding screen assembly; the camera module is at least partially accommodated in the through hole of the display module of the folding screen assembly, wherein the through hole of the display module is used as a light inlet hole of the camera module, and external light sequentially penetrates through the cover plate of the folding screen assembly and the through hole to enter the lens of the camera module.

The beneficial effect of this application is: be different from prior art's condition, apron covers the camera module in this application, and this apron is more level and smooth corresponding camera module's position, and transparent supporting layer below is equipped with flexible stratum basale, and consequently transparent supporting layer is unsettled design, can avoid influencing the surperficial Peak Valley (Peak to Valley, PV) value on transparent supporting layer surface because of inside and outside differential pressure of transparent supporting layer or local unevenness, solves the glare problem of the camera module that arouses from this. In addition, the shock resistance of flexible stratum basale is higher than transparent supporting layer, and when the impact that the position that the apron corresponds the camera received, the impact force that the apron received can be absorbed better to flexible stratum basale to the damage of folding screen subassembly can be avoided. Meanwhile, due to the influence of the preparation process of the flexible substrate layer, the flexible substrate layer can make up for the processing defects of the transparent supporting layer, and further the overall strength of the cover plate is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

FIG. 1 is a schematic structural diagram of a first embodiment of an electronic device of the present application;

FIG. 2 is a schematic structural diagram of a first embodiment of a folding screen of the present application;

FIG. 3 is another schematic structural view of the first embodiment of the folding screen of the present application;

FIG. 4 is a schematic structural diagram of a second embodiment of a folding screen of the present application;

FIG. 5 is another schematic structural view of a second embodiment of the folding screen of the present application;

FIG. 6 is a further schematic view of a second embodiment of the folding screen of the present application;

FIG. 7 is a schematic structural diagram of a third embodiment of a folding screen of the present application;

FIG. 8 is a schematic structural view of a fourth embodiment of a folding screen of the present application;

FIG. 9 is a schematic view of a portion of the display screen of FIG. 8;

FIG. 10 is a schematic view of a fifth embodiment of a folding screen according to the present application;

FIG. 11 is a schematic view of a sixth embodiment of a folding screen of the present application;

FIG. 12 is a schematic structural diagram of a second embodiment of an electronic device of the present application;

fig. 13 is a schematic structural diagram of a third embodiment of the electronic device of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and a conventional laptop and/or palmtop receiver or other electronic device 100 that includes a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Referring to fig. 1, the foldable screen assembly 10 provided in the embodiment of the present application is applied to an electronic device 100, and specifically, the electronic device 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, and the like.

Referring to fig. 2 and fig. 3, the foldable screen assembly 10 according to the embodiment of the present disclosure includes a cover plate 11 and a display module 12, wherein the display module 12 is disposed on one side of the cover plate 11, the cover plate 11 covers the display module 12 and a camera module 20 of an electronic device 100, the camera module 20 is a front camera module 20, and the number of the camera modules 20 may be one or more. Specifically, the cover 11 is a foldable cover 11 having a certain strength and a high transmittance.

The cover plate 11 includes a substrate 111, a camera window 112, and a display window 113. The substrate 111, the camera window 112 and the display window 113 are integrated. The camera window 112 is made of a transparent material, the camera window 112 corresponds to the camera module 20 of the electronic device 100, and the camera module 20 at least includes a camera of the electronic device 100. The display window 113 is made of a transparent material, and the display window 113 corresponds to a display area of the electronic device 100. The substrate 111 is made of an opaque or translucent material, and therefore, the substrate 111 can greatly attenuate stray light projected to the camera view window 112 through the cover plate 11. The stray light may be light emitted by the display screen 107 of the electronic device 100 or light emitted by a flash inside the electronic device 100. Since the stray light entering the cover plate 11 can be absorbed by the substrate 111, the stray light is prevented from being coupled to the camera window 112, and thus the problem of glare can be avoided or reduced. The color of the substrate 111 may be opaque black or opaque white, but is not limited thereto, and the substrate 111 may be other colors such as opaque or translucent.

In this application, camera window 112 and display window 113 all include flexible base layer 101, the transparent support layer 102 that stacks gradually the setting, and the thickness of transparent support layer 102 is more than or equal to and predetermines thickness. Specifically, the material of the transparent support layer 102 may be Ultra-Thin Glass (UTG), and the thickness of the transparent support layer 102 is 50 μm or more. More preferably, the thickness of the transparent support layer 102 is greater than or equal to 70 μm, the material of the transparent support layer 102 may be made of ultra-thin flexible glass, and the ultra-thin flexible glass is ultra-thin bendable glass, and has the characteristics of being foldable, good in flexibility, high in hardness, and wear-resistant.

The flexible substrate layer 101 is formed by coating an organic polymer solution in an interface modification manner and then curing to form a film, so that the flexible substrate layer 101 can be filled in the pores of the transparent support layer 102. The organic polymer may be at least one selected from rubber, Polyimide (PI), Polyamide (PA), Polycarbonate (PC), Polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polymethyl methacrylate (PMMA), and cyclic olefin Copolymer (COP). Preferably, the organic polymer is selected from the group consisting of cyclic olefin copolymers and polyamides. The cycloolefin polymer is an amorphous transparent polymer having a cyclic olefin structure, and has the advantages of high transparency, low birefringence, low water absorption, high rigidity, high heat resistance, and good water vapor impermeability. Polyamide is a crystalline plastic with the advantages of high mechanical strength, good toughness, fatigue resistance and smooth surface. The thickness of the flexible base layer 101 is 5-20 μm (e.g. 5 μm, 10 μm or 20 μm).

The display module 12 is disposed on a side of the flexible substrate away from the transparent support layer 102, and the display module 12 is provided with a through hole 120 facing the camera module 20, wherein at least a portion of the camera module 20 is accommodated in the through hole 120. Specifically, the light incident surface 201 of the camera module 20 faces the cover plate 11, in other words, the external light sequentially penetrates through the cover plate 11 and the through hole 120 to enter the lens of the camera module 20 for imaging. In this embodiment, the through hole 120 includes an inner wall surface 121, and the inner wall surface 121 is a hole wall surface of the through hole 120, and in this embodiment, the camera module 20 is partially housed in the through hole 120, so that the size of the through hole 120 can be reduced. The lower opening of the folding screen assembly 10 is used for placing the camera module 20, so that the space occupied by the camera module 20 in the display area of the folding screen assembly 10 is reduced, and the screen occupation ratio of the electronic equipment 100 is improved.

To verify the impact resistance of the cover plate of the present application, the applicant performed a ball drop test by dropping 50g of stainless steel balls from different heights onto the cover plate 11 (the cover plate 11 comprises a flexible base layer 101 and a transparent support layer 102, the transparent support layer 102 is ultra-thin glass with a thickness of 70 μm, the flexible base layer 101 is an organic polymer layer with a thickness of 10 μm, wherein the organic polymer comprises cyclic olefin copolymer and polyamide) and the common cover plate 1 (the common cover plate 1 is ultra-thin glass with a thickness of 30 μm), respectively, and the ball drop resistance height of the cover plate 11 is 10-14 times the ball drop resistance height of the common cover plate.

Be different from prior art's condition, apron 11 covers camera module 20 in this application, and this apron 11 corresponds camera module 20's position and more levels, and transparent supporting layer 102 below is equipped with flexible substrate layer 101, and consequently transparent supporting layer 102 is not unsettled design, can avoid influencing the surperficial Peak Valley (Peak to Valley, PV) value of transparent supporting layer 102 because of inside and outside pressure differential of transparent supporting layer 102 or local unevenness, solves the glare problem of camera module 20 that arouses from this. In addition, the impact resistance of the flexible substrate layer 101 is higher than that of the transparent support layer 102, and when the cover plate 11 is impacted at a position corresponding to the camera, the flexible substrate layer 101 can better absorb the impact force on the cover plate 11, so that the damage to the folding screen assembly 10 can be avoided. Meanwhile, due to the influence of the preparation process of the flexible substrate layer 101, the flexible substrate layer 101 can make up for the processing defect of the transparent support layer 102, and further, the overall strength of the cover plate 11 is improved.

Referring to fig. 4 and 5, the cover plate 11 of the embodiment of the present disclosure further includes at least one antireflection film 103, where the antireflection film 103 is disposed on a side of the transparent support layer 102 away from the flexible base layer 101 and/or a side of the transparent support layer 102 close to the flexible base layer 101. Specifically, the transparent support layer 102 has a first surface 1021 and a second surface 1022 which are opposite to each other, and the antireflection film 103 may be disposed on only the first surface 1021 or the second surface 1022 of the transparent support layer 102, or may be disposed on the first surface 1021 and the second surface 1022 of the transparent support layer 102.

In the present application, the antireflection film 103 may be composed of a single layer or a plurality of thin films having a certain refractive index. Alternatively, the antireflection film 103 is formed by alternately laminating at least two kinds of thin films having different refractive indices. Further, the antireflection film 103 is formed by alternately laminating at least two kinds of thin films having different refractive indexes. The material of the antireflection film 103 may be, but is not limited to, a silicon-containing organic polymer compound. Optionally, the optical transmittance of the antireflection film 103 is greater than 90% (e.g., 90%, 93%, 96%, and 99%), which is beneficial to light passing, improves the light quantity received by the camera module 20, is beneficial to improving the imaging quality, and avoids stray light and ghost. Further, when the antireflection film 103 is composed of a plurality of films with different refractive indexes, the refractive indexes of the films may be calculated according to a formula of the multilayer antireflection film 103 with gradually changed refractive indexes, so that the antireflection effect of the antireflection film 103 may be optimized. Therefore, the refractive index of each thin film is not limited in the present application, and can be selected according to actual needs. Further, in the present application, the thickness of the antireflection film 103 may be an odd multiple of λ/4, where λ is the wavelength of light. The antireflection film 103 with the thickness can eliminate reflected light, enhance the superposition incidence of light rays and achieve the purpose of further enhancing the light transmittance.

Referring to fig. 6, preferably, at least one antireflection film 103 is disposed only on the transparent supporting layer 102 of the camera window 112 to reduce the manufacturing cost.

Referring to fig. 7, the cover plate 11 further includes a protective film layer 104, the protective film layer 104 is disposed on a side of the transparent support layer 102 or the antireflection film 103 facing away from the flexible base layer 101, and the protective film layer 104 is used for protecting the foldable cover plate 11 of the electronic device 100. The material of the protective film layer 104 may be a polymer material or optical glass, for example, the material of the protective film layer 104 may be a transparent plastic, such as a PET (Polyethylene Terephthalate) material, a PC (Polycarbonate) composite material, or the like, or the material of the protective film layer 104 may be quartz. Optionally, the optical transmittance of the protective film layer 104 is greater than 86% (e.g., 86%, 90%, 93%, 96%, 99%), which is beneficial to light passing, improves the light quantity received by the camera module 20, is beneficial to improving the imaging quality, and avoids stray light and ghost.

Referring to fig. 8, the display module 12 includes a substrate 106, a display panel 107, a polarizer 108, and a first adhesive layer 109 stacked in sequence. It should be noted that the display module 12 is flexible and can be bent.

Wherein the polarizer 108 is arranged on the side of the flexible substrate facing away from the transparent support layer 102, and the first adhesive layer 109 is arranged between the flexible substrate and the polarizer 108. The display 107 is arranged on the side of the polarizer 108 facing away from the first adhesive layer 109. The substrate 106 is arranged on the side of the display screen 107 facing away from the polarizer 108.

Specifically, the polarizer 108 is disposed on the surface of the display screen 107, and the polarizer 108 is attached to the flexible substrate through a first adhesive layer 109, where the first adhesive layer 109 may be OCA glue. The polarizer 108 is used to filter light emitted from the display screen 107 to assist the display screen 107 in performing an imaging function. The substrate 106 is attached to a surface of the display screen 107 facing away from the polarizer 108 for protecting the display screen 107 and preventing the display screen 107 from being damaged, for example, preventing the display screen 107 from being punctured, scratched or abraded. The display 107 and the substrate 106 are bonded to each other by an OCA adhesive in a planar state. This attachment is the same as the attachment of a conventional screen and cover plate 11, i.e. in a flat condition. And wrinkles and air bubbles caused by the bonding between the two materials after the bonding are removed or expelled in a plane pressing and driving mode.

The substrate 106 is made of a flexible transparent material, for example, the substrate 106 may be made of a polyimide film (PI film), a polyarylate film (PAR film), a polycarbonate film (PC film), a biaxially oriented polyester film (BOPET film), a cycloolefin polymer film (COP film), a polydimethylsiloxane film (PDMS film), a polyethylene naphthalate film (PEN film), or the like.

The Display screen 107 may be an LCD (Liquid Crystal Display), an OLED (organic light emitting diode) flexible Display screen, an AMOLED (Active-matrix organic light emitting diode) flexible Display screen, or the like. The AMOLED display screen is a self-luminous display screen, and a Back Light Module (BLM) is not required. Therefore, when the substrate 106 in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable characteristic.

Referring to fig. 9, the display screen 107 includes a display region 1070, wherein the display region 1070 has a plurality of sub-regions arranged in an array, and a light emitting diode 1071 is disposed in a middle sub-region of the sub-regions. Preferably, the light emitting diode 1071 is an organic light emitting diode or an active matrix organic light emitting diode.

Referring to fig. 10, the folding screen assembly 10 further includes: a support sheet 13. The support sheet 13 is disposed on a side of the display module 12 away from the cover plate 11, and the support sheet 13 is attached and fixed to the substrate 106 through the second adhesive layer 15.

Referring to fig. 11, the supporting sheet 13 includes a bendable region 131 for bending and non-bendable regions 132 disposed at two sides of the bendable region 131, the bendable region 131 includes a plurality of hollow portions 133 disposed at intervals, and the hollow portions 133 penetrate through the supporting sheet 13 along a thickness direction of the supporting sheet 13. Silicone gel as the filling member 14 is filled in the hollow portion 133 of the supporting sheet 13 to improve the flexibility of the bendable region 131 of the supporting sheet 13 while the supporting sheet 13 ensures the supporting hardness, thereby ensuring the flexibility of the folding screen assembly 10.

It should be noted that the filling member 14 may be made of silicone or other jelly-like materials, such as foam rubber, which has the characteristics of elasticity and free bending, and is filled in the hollow portion 133 of the supporting sheet 13 to improve the flexibility of the bendable region 131131 of the supporting sheet 13 while ensuring the supporting hardness of the supporting sheet 13, so as to ensure the flexibility of the foldable screen assembly 10, and to realize that the foldable screen assembly 10 is unfolded from 180 ° to 0 ° or folded from 0 ° to 180 °.

Specifically, a hollow portion 133 is formed inside the supporting sheet 13, and the hollow portion 133 thins the supporting sheet 13 to a bendable thickness. In addition, the hollow portion 133 is filled with the filling element 14 to form the bendable region 131 of the support sheet 13 in cooperation with the hollow portion 133. In this embodiment, the region outside the bendable region 131 of the supporting sheet 13 is the non-bendable region 132, the thickness range of the supporting sheet 13 of the non-bendable region 132 is 0.1mm-0.5mm, the thickness range of the supporting sheet 13 of the bendable region 131 is 0.01mm-0.05mm, and the sum of the thicknesses of the filling element 14 and the supporting sheet 13 of the bendable region 131 is equal to the thickness of the supporting sheet 13 of the non-bendable region 132.

The support sheet 13 is a stainless steel sheet which can be bent and has certain hardness, and can effectively support the display screen 107, so that the stability of the overall structure of the folding screen assembly 10 is ensured. It is understood that the support piece 13 may be made of other materials as long as the bending and supporting performance can be ensured.

The thinning process of the support sheet 13 may be chemical etching, or computer numerical control cutting, or laser, and during the manufacturing process, the common support sheet 13 is divided into the bendable region 131 and the non-bendable region 132, then the depth of the recess of the bendable region 131 is determined, the support sheet 13 is thinned by using the thinning process, and finally the filler 14 is filled, so that the manufacturing of the support sheet 13 is completed.

With reference to fig. 11, the transparent supporting layer 102 includes a first transparent supporting area 1021 with a first thickness and a second transparent supporting area 1022 with a second thickness, the first transparent supporting area 1021 corresponds to the bendable region 131, the second transparent supporting area 1022 corresponds to the non-bendable region 132, and the first thickness is smaller than the second thickness. Preferably, the first thickness is 70 μm or more and the second thickness is 30 μm or more.

Further, the flexible substrate layer 101 comprises a first flexible area 1011 and a second flexible area 1012, the first flexible area 1011 corresponding to the first transparent support area 1021, the second flexible area 1012 corresponding to the second transparent support area 1022; among other things, since the flexible substrate layer 101 is bent in different degrees in the thickness direction of the support sheet 13 when the folding screen assembly 10 is bent. The first flexible region 1011 gradually increases in thickness in a direction gradually approaching the first transparent support region 1021. The sum of the thicknesses of the first flexible area 1011 and the first transparent supporting area 1021 is equal to the sum of the thicknesses of the second flexible area 1012 and the second transparent supporting area 1022, so that the surface of the cover plate is flat.

Referring to fig. 1 and fig. 2, an embodiment of the present application provides an electronic device 100, where the electronic device 100 may be a product with a display interface, such as a mobile phone, a display, a tablet computer, and a vehicle-mounted computer. The embodiment of the present application does not specially limit the specific form of the folding display terminal.

The electronic device 100 includes the foldable screen assembly 10 and the camera module 20 in the above embodiments. The camera module 20 is at least partially accommodated in the through hole 120 of the display module 12 of the foldable screen assembly 10, wherein the through hole 120 of the display module 12 is used as a light inlet of the camera module 20, and external light sequentially penetrates through the cover plate 11 and the through hole 120 of the foldable screen assembly 10 and enters the lens of the camera module 20.

Referring to fig. 12, the camera module 20 has an outer sidewall 21, the through hole 120 includes an inner wall surface 121, and the inner wall surface 121 is a hole wall surface of the through hole 120. The outer side wall of the camera module 20 and the inner wall surface 121 of the through hole 120 are spaced by a first preset safety distance. When the first preset safety distance is greater than or equal to the sum of the error amount of the cover plate 11 relative to the display module 12 and the assembly tolerance of the camera module 20 when the display module 12 is folded.

For avoiding when electronic equipment 100 is folding, camera module 20 striking display module 12 causes display module 12 to damage, the first safe distance I1 that predetermines in interval between the inside wall face 121 of the lateral wall of camera module 20 and perforating hole 120 of this application, for example, camera module 20's assembly tolerance 0.2mm, folding in-process apron 11 is 0.35mm for display module 12's dislocation volume, then first safe distance I1 of predetermineeing is greater than or equal to 0.55 mm.

Therefore, according to the electronic device 100 provided by the embodiment of the application, the first preset safety distance I2 is spaced between the outer side wall of the camera module 20 and the inner wall surface 121 of the through hole 120, so that when the electronic device 100 is folded, the camera module 20 collides with the display module 12, and the display module 12 is prevented from being damaged.

Referring to fig. 12, the camera module 20 has a top wall 22, and a second predetermined safety distance I2 is formed between the top wall 22 and the cover plate 11.

Because the transparent supporting layer 102 is deformed when being impacted by a blunt object and the camera module 20 does not contact the transparent supporting layer 102 during assembly, so as to prevent the two from colliding, a second preset safety distance needs to be spaced between the top wall of the camera module 20 and the cover plate 11. For example, the deformation amount of the transparent support layer 102 when impacted by a blunt object is 0.2mm, the assembly tolerance of the camera module 20 is 0.2mm, and the second preset safety distance is greater than or equal to 0.4 mm.

Referring to fig. 13, the electronic device 100 further includes a housing 30, the foldable screen assembly 10 is mounted on one side of the housing 30, and the camera module 20 is mounted in the housing 30. It should be understood that other structures of the electronic device 100 may be provided in the housing 30, such as a circuit board, a battery, and functional devices, wherein the functional devices may include sockets, speakers, sensors, etc.

The folding screen assembly 10 that this application embodiment provided, its apron 11 covers camera module 20, this apron 11 corresponds camera module 20's position and is more level and more smooth, and transparent supporting layer 102 below is equipped with flexible substrate layer 101, therefore transparent supporting layer 102 is not unsettled design, can avoid influencing the surperficial Peak Valley (Peak to Valley, PV) value of transparent supporting layer 102 because of inside and outside pressure differential of transparent supporting layer 102 or local unevenness, solve the glare problem of camera module 20 that arouses from this. In addition, the impact resistance of the flexible substrate layer 101 is higher than that of the transparent support layer 102, and when the cover plate 11 is impacted at a position corresponding to the camera, the flexible substrate layer 101 can better absorb the impact force on the cover plate 11, so that the damage to the folding screen assembly 10 can be avoided. Meanwhile, due to the influence of the preparation process of the flexible substrate layer 101, the flexible substrate layer 101 can make up for the processing defect of the transparent support layer 102, and further, the overall strength of the cover plate 11 is improved.

Since the present application does not relate to the improvement of these components, it is not specifically described herein. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A folding screen assembly, comprising:

the cover plate is used for covering the camera module and comprises a flexible substrate layer and a transparent support layer which are sequentially stacked, and the thickness of the transparent support layer is larger than or equal to a preset thickness;

the display module is arranged on one side, away from the transparent supporting layer, of the flexible substrate, and a through hole is formed in the display module;

the camera module is at least partially accommodated in the through hole, and external light rays sequentially penetrate through the cover plate and the through hole to enter the lens of the camera module.

2. The folding screen assembly of claim 1, wherein the cover panel further comprises:

and the antireflection film is arranged on one side of the transparent support layer far away from the flexible substrate layer and/or one side of the transparent support layer close to the flexible substrate layer.

3. The folding screen assembly of claim 1 or 2, wherein the cover panel further comprises:

and the protective film layer is arranged on one side of the transparent supporting layer or the antireflection film, which deviates from the flexible substrate layer.

4. The folding screen assembly of claim 1,

the material of the transparent supporting layer is ultrathin glass, and the thickness of the transparent supporting layer is more than or equal to 50 micrometers.

5. The folding screen assembly of claim 1, wherein the display module comprises: the display panel comprises a substrate, a display screen, a polaroid and a first bonding layer which are sequentially stacked;

the polarizer is arranged on one side, away from the transparent supporting layer, of the flexible substrate, and the first bonding layer is arranged between the flexible substrate and the polarizer;

the display screen is arranged on one side of the polarizer, which is far away from the first adhesive layer;

the substrate is arranged on one side of the display screen, which is far away from the polaroid.

6. A folding screen assembly according to claim 5, wherein the substrate is of a flexible transparent material.

7. The folding screen assembly of claim 6,

the flexible transparent material is at least one of polyimide, polyarylate, polycarbonate, cyclic olefin polymer, polydimethylsiloxane and polyethylene naphthalate.

8. A folding screen assembly according to claim 5 wherein the display screen includes a display area having a plurality of sub-areas arranged in an array, wherein some of the sub-areas are provided with light emitting diodes.

9. The folding screen assembly of claim 8, wherein the light emitting diode is an organic light emitting diode.

10. The folding screen assembly of claim 1, further comprising:

the supporting sheet is arranged on one side, away from the cover plate, of the display module and comprises a bendable area for bending and non-bending areas arranged on two sides of the bendable area;

the transparent supporting layer comprises a first transparent supporting area with a first thickness and a second transparent supporting area with a second thickness, the first transparent supporting area corresponds to the bendable area, the second transparent supporting area corresponds to the non-bendable area, and the first thickness is smaller than the second thickness.

11. The folding screen assembly of claim 10,

the flexible base layer comprises a first flexible region corresponding to the first transparent support region and a second flexible region corresponding to the second transparent support region;

wherein the first flexible region has a gradually increasing thickness in a direction gradually approaching the first transparent support region.

12. The folding screen assembly of claim 10,

the bendable region comprises a plurality of hollow parts arranged at intervals, and the hollow parts penetrate through the supporting sheet along the thickness direction of the supporting sheet;

the filling piece is arranged in the hollow part of the supporting piece to fill the hollow part, so that the supporting piece faces the surface of the display module to be flat.

13. An electronic device, comprising:

a folding screen assembly as claimed in any one of claims 1 to 12;

the camera module, at least part accept in the perforating hole of the display module assembly of folding screen subassembly, wherein, the perforating hole of display module assembly is as the income unthreaded hole of camera module assembly, and external light sees through in proper order the apron of folding screen subassembly and the perforating hole gets into the camera lens of camera module assembly.

14. The electronic device of claim 13,

the camera module is provided with an outer side wall, and a first preset safety distance is arranged between the outer side wall and the inner wall surface of the through hole;

when the display module is folded, the first preset safety distance is larger than or equal to the sum of the dislocation quantity of the cover plate relative to the display module and the assembly tolerance of the camera module.

15. The electronic device of claim 13,

the camera module is provided with a top wall, and a second preset safety distance is arranged between the top wall and the cover plate.

16. The electronic device of claim 13, further comprising:

the folding screen assembly is arranged on one side of the shell, and the camera module is arranged in the shell.