A display component and an electronic device

Abstract

An embodiment of the present application provides a display component and an electronic device. The display component includes: a display screen; a middle frame component including a middle frame and a light guide member, the middle frame has an installation space, and at least one light inlet hole is provided on the bottom wall of the installation space, the light guide member is arranged in the installation space and covers at least one light inlet hole; a photosensitive adhesive reducing component located between the display screen and the middle frame component, and a first side surface of the photosensitive adhesive reducing component is bonded to the display screen, and a second side surface of the photosensitive adhesive reducing component is bonded to the middle frame component; wherein, light can enter the light guide member through the light inlet hole and can be propagated through the light guide member to the photosensitive adhesive reducing component, so that the viscosity of the photosensitive adhesive reducing component is reduced and the display screen is separated from the middle frame component. The embodiment of the present application facilitates the disassembly of the display screen, has a high disassembly efficiency, does not damage the display screen, improves the reuse efficiency of the display screen, and is beneficial to reducing the overall machine maintenance cost.

Description

Technical Field

[0001] This application relates to the technical field of terminal devices, and particularly to a display component and an electronic device. Background Art

[0002] When connecting the cover glass (CG) of a touch pad (TP) to a middle frame through a dispensing solution, the disassembly is mainly achieved through a solution that combines heating and a specific positioning fixture. The overall disassembly efficiency is low, and the reuse efficiency of the CG after disassembly is relatively low. Compared with the CG of a rigid screen, this disassembly solution is more difficult to operate for a flexible folding screen, and the larger the area of the flexible folding screen, the more easily it is damaged, resulting in an even lower reuse efficiency of the flexible folding screen.

[0003] If a flexible folding screen uses ordinary back glue to bond with the middle frame, generally, a solution of using alcohol to penetrate and corrode to reduce the viscosity of the glue layer is used during disassembly. However, alcohol will cause irreparable damage to the internal laminations of the flexible folding screen, such as the support layer, display layer, and protective layer, which is not conducive to improving the reuse efficiency of the flexible folding screen and results in a relatively high overall machine maintenance cost. Summary of the Invention

[0004] Embodiments of this application provide a display component and an electronic device, which facilitate the disassembly of the display screen, have a relatively high disassembly efficiency, do not damage the display screen, improve the reuse efficiency of the display screen, and are conducive to reducing the overall machine maintenance cost.

[0005] To this end, the embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide a display component, which includes: a display screen; a middle frame component, including a middle frame and a light guide member, the middle frame has an installation space, and at least one light inlet hole is provided on the bottom wall of the installation space, the light guide member is disposed in the installation space and covers the at least one light inlet hole; a photosensitive viscosity-reducing component, located between the display screen and the middle frame component, and a first side surface of the photosensitive viscosity-reducing component is bonded to the display screen, and a second side surface of the photosensitive viscosity-reducing component is bonded to the middle frame component; wherein, light can enter the light guide member through the light inlet hole and can be propagated through the light guide member to the photosensitive viscosity-reducing component, so that the viscosity of the photosensitive viscosity-reducing component is reduced and the display screen is separated from the middle frame component.

[0007] For the display component of the embodiments of this application, light can enter the light guide member through the light inlet hole and can be propagated through the light guide member to the photosensitive viscosity-reducing component, so that the viscosity of the photosensitive viscosity-reducing component is reduced and the display screen is separated from the middle frame component. In this way, it is convenient to disassemble the display screen, the disassembly efficiency is relatively high, the display screen is not damaged, the reuse efficiency of the display screen is improved, and it is conducive to reducing the overall machine maintenance cost.

[0008] In a possible implementation, the light guide member includes a first light guide member, and the first light guide member includes: a light-transmitting substrate; a first reflective layer disposed on a first surface of the light-transmitting substrate facing the display screen; a second reflective layer disposed on a second surface of the light-transmitting substrate facing the middle frame assembly, and an opening is provided at a portion of the second reflective layer corresponding to the light incident hole, so that the light enters the light-transmitting substrate through the opening, and total reflection occurs between the first reflective layer and the second reflective layer to propagate to the photosensitive adhesion-reducing assembly. That is to say, in this implementation, the first solution of the light guide member is to include a light-transmitting substrate, a first reflective layer and a second reflective layer. After the light sequentially passes through the light incident hole and the opening on the second reflective layer and enters the light-transmitting substrate, total reflection can occur between the first reflective layer and the second reflective layer to propagate to the photosensitive adhesion-reducing assembly, reducing the adhesion of the photosensitive adhesion-reducing assembly, and separating the display screen from the middle frame assembly.

[0009] In a possible implementation, the edge of the middle frame extends out of the light guide member, where: the second side surface of the photosensitive adhesion-reducing assembly is bonded to the extended portion of the middle frame, and the photosensitive adhesion-reducing assembly is disposed around the outer peripheral wall of the light guide member, and the light exits from the outer peripheral wall of the light guide member; and / or, a part of the second side surface of the photosensitive adhesion-reducing assembly is bonded to the middle frame, and another part of the second side surface of the photosensitive adhesion-reducing assembly is bonded to the outer peripheral edge of the light guide member, and the light exits from the outer peripheral edge of the light guide member. That is to say, in this implementation, the bonding of the photosensitive adhesion-reducing assembly to the middle frame can include the following two methods: Method 1 - The entire second side surface of the photosensitive adhesion-reducing assembly is bonded to the middle frame, so that the entire light guide member is located inside the photosensitive adhesion-reducing assembly, and the light can exit from the outer peripheral wall of the light guide member to the photosensitive adhesion-reducing assembly; specifically, the light can exit from the outer peripheral wall of the light-transmitting substrate. When the first reflective layer is a grating, the light can also exit from the outer peripheral wall of the first reflective layer. When the second reflective layer is a grating, the light can also exit from the outer peripheral wall of the second reflective layer; Method 2 - A part of the second side surface of the photosensitive adhesion-reducing assembly is bonded to the middle frame, and another part is bonded to the outer peripheral edge of the light guide member, and the light can exit from the outer peripheral edge of the light guide member; specifically, the light exit path can be the same as the light exit path in Method 1, or, on the basis of the light exit path in Method 1, if the light-transmitting substrate extends out of the first reflective layer, the light can also exit from the upper surface of the extended portion of the light-transmitting substrate away from the middle frame to the photosensitive adhesion-reducing assembly.

[0010] In a possible implementation, the edge of the second reflective layer extends out of the light-transmitting substrate and the first reflective layer, where: the second side surface of the photosensitive adhesion-reducing component is bonded to the extended portion of the second reflective layer, and the photosensitive adhesion-reducing component is disposed around the outer peripheral wall of the light-transmitting substrate and the outer peripheral wall of the first reflective layer, and the light is emitted from at least one of the extended portion of the second reflective layer, the outer peripheral wall of the light-transmitting substrate, and the outer peripheral wall of the first reflective layer; or, a part of the second side surface of the photosensitive adhesion-reducing component is bonded to the extended portion of the second reflective layer, and another part of the second side surface of the photosensitive adhesion-reducing component is bonded to the outer peripheral edge of the light-transmitting substrate and / or the first reflective layer, and the light is emitted from at least one of the extended portion of the second reflective layer, the outer peripheral edge of the light-transmitting substrate, and the outer peripheral wall of the first reflective layer. That is to say, in this implementation, the bonding of the photosensitive adhesion-reducing component to the second reflective layer may include the following two methods: Method 1 - The entire second side surface of the photosensitive adhesion-reducing component is bonded to the second reflective layer, so that the light-transmitting substrate and the first reflective layer are located inside the photosensitive adhesion-reducing component, and the light can be emitted from the outer peripheral wall of the light-transmitting substrate to the photosensitive adhesion-reducing component; when the first reflective layer is a grating, the light can also be emitted from the outer peripheral wall of the first reflective layer to the photosensitive adhesion-reducing component; when the second reflective layer is a grating, the light can also be emitted from the extended portion of the second reflective layer to the photosensitive adhesion-reducing component; Method 2 - A part of the second side surface of the photosensitive adhesion-reducing component is bonded to the extended portion of the second reflective layer, and another part is bonded to the outer peripheral edge of the light-transmitting substrate and / or the first reflective layer; specifically, the light emission path of the light can be the same as the light emission path in Method 1, or, on the basis of the light emission path in Method 1, if the light-transmitting substrate extends out of the first reflective layer, the light can also be emitted from the upper surface of the extended portion of the light-transmitting substrate away from the middle frame to the photosensitive adhesion-reducing component.

[0011] In a possible implementation, the edges of the light-transmitting substrate and the second reflective layer extend out of the first reflective layer, and the light is emitted from the extending part of the light-transmitting substrate or the light is emitted from the extending part of the light-transmitting substrate and the outer peripheral wall of the first reflective layer, where: the second side surface of the photosensitive tackiness-reducing component is bonded to the extending part of the light-transmitting substrate, and the photosensitive tackiness-reducing component is arranged around the outer peripheral wall of the first reflective layer; or, a part of the second side surface of the photosensitive tackiness-reducing component is bonded to the extending part of the light-transmitting substrate, and another part of the second side surface of the photosensitive tackiness-reducing component is bonded to the outer peripheral edge of the first reflective layer. That is to say, in this implementation, the bonding of the photosensitive tackiness-reducing component to the light-transmitting substrate may include the following two methods: Method 1 - The entire second side surface of the photosensitive tackiness-reducing component is bonded to the extending part of the light-transmitting substrate, so that the first reflective layer of the light guide is located inside the photosensitive tackiness-reducing component; Method 2 - A part of the second side surface of the photosensitive tackiness-reducing component is bonded to the extending part of the light-transmitting substrate, and another part is bonded to the outer peripheral edge of the first reflective layer. In the above two methods, the light can be emitted from the extending part of the light-transmitting substrate to the photosensitive tackiness-reducing component. In some cases, for example, when the first reflective layer is a grating, the light can also be emitted from the outer peripheral wall of the first reflective layer to the photosensitive tackiness-reducing component.

[0012] In a possible implementation, at least one of the first reflective layer and the second reflective layer includes a grating, and the light can be emitted from the outer peripheral wall of the grating. That is to say, in this implementation, the first reflective layer may include a grating. At this time, the second reflective layer may include a reflective coating, and the light can be emitted from the outer peripheral wall of the first reflective layer with the grating; or, the second reflective layer may include a grating. At this time, the first reflective layer may include a reflective coating, and the light can be emitted from the outer peripheral wall of the second reflective layer with the grating; or, both the first reflective layer and the second reflective layer may include gratings, and the light can be emitted from the outer peripheral walls of the first reflective layer and the second reflective layer with gratings respectively.

[0013] In a possible implementation, the grating is arranged on the light-transmitting substrate by an imprinting or transfer printing method; and / or, the grating includes an array of grating bodies, and the value range of the spacing distance between adjacent grating bodies is 100 nm - 10 μm. That is to say, in this implementation, the grating can be arranged on the light-transmitting substrate by an imprinting or transfer printing method, so that the manufacturing accuracy is relatively high and the accuracy of the light propagation path is relatively high. In addition, the spacing distance between adjacent grating bodies can be selected as needed, for example, it can be 100 nm - 10 μm.

[0014] In a possible implementation, at least one of the first reflective layer and the second reflective layer includes a reflective coating; or, one of the first reflective layer and the second reflective layer includes a reflective coating, and the other of the first reflective layer and the second reflective layer includes a grating. That is to say, in this implementation, the first reflective layer may include a reflective coating, and in this case, the second reflective layer may include a grating; or, the second reflective layer may include a reflective coating, and in this case, the first reflective layer may include a grating; or, both the first reflective layer and the second reflective layer may include reflective coatings.

[0015] In a possible implementation, the light guide member includes a second light guide member, and the second light guide member includes: an optical waveguide having a light incident area and a light exit area, the light incident area being located on the side of the optical waveguide facing the middle frame and corresponding to the light incident hole, and the light exit area being located on the side of the optical waveguide facing the display screen and corresponding to the photosensitive adhesion reduction component, and the light propagating from the light incident area to the light exit area in the optical waveguide; an input grating provided in the light incident area, the input grating being capable of coupling the light entering from the light incident hole into the optical waveguide in the light incident area; an output grating provided in the light exit area, the second side of the photosensitive adhesion reduction component being bonded to the output grating, and the output grating being capable of coupling the light in the optical waveguide out at the light exit area and causing the light to propagate to the photosensitive adhesion reduction component. That is to say, in this implementation, the second solution of the light guide member is to include an optical waveguide, an input grating, and an output grating. The light can enter the optical waveguide through the input grating and propagate in the optical waveguide by total reflection to the output grating. Then, the output grating can couple the light out and cause the light to propagate to the photosensitive adhesion reduction component.

[0016] In a possible implementation, the photosensitive adhesion reduction component includes: a substrate; a first adhesive layer provided on the side of the substrate facing the display screen; a second adhesive layer provided on the side of the substrate facing the middle frame; wherein, at least one of the first adhesive layer and the second adhesive layer includes a photosensitive adhesion reduction material, and the photosensitive adhesion reduction material reduces its viscosity after the light propagates to it. That is to say, in this implementation, in order to enable the photosensitive adhesion reduction component to bond to the display screen and the middle frame assembly, the first adhesive layer and the second adhesive layer can be respectively provided on both sides of the substrate to form the photosensitive adhesion reduction component. Moreover, at least one of the first adhesive layer and the second adhesive layer includes a photosensitive adhesion reduction material. In this way, the viscosity of the photosensitive adhesion reduction material can be reduced after the light propagates to it, thereby separating the display screen and the middle frame assembly.

[0017] In a possible implementation, the first adhesive layer includes a first photosensitive tack-reducing material or includes a first photosensitive tack-reducing material and a first adhesive layer arranged in a stacked manner; the second adhesive layer includes at least one of a second photosensitive tack-reducing material and a second adhesive layer, and the substrate is a light-transmitting material; or, the first adhesive layer includes a first adhesive layer, the second adhesive layer includes a second photosensitive tack-reducing material or includes a second photosensitive tack-reducing material and a second adhesive layer arranged in a stacked manner, and the substrate is a light-transmitting material or a light-impermeable material. That is to say, in this implementation, the first adhesive layer at least includes a first photosensitive tack-reducing material, and the second adhesive layer may only include a second photosensitive tack-reducing material, may only include an adhesive layer, or may include both a second photosensitive tack-reducing material and an adhesive layer; or, the first adhesive layer only includes a first adhesive layer, and the second adhesive layer at least includes a second photosensitive tack-reducing material.

[0018] In a possible implementation, the substrate is a light-transmitting material, wherein: the first adhesive layer includes a first photosensitive tack-reducing material and a first adhesive layer arranged in a stacked manner, and the first photosensitive tack-reducing material is located between the substrate and the first adhesive layer; the second adhesive layer includes a second photosensitive tack-reducing material and a second adhesive layer arranged in a stacked manner, and the second photosensitive tack-reducing material is located between the substrate and the second adhesive layer. That is to say, in this implementation, both the first adhesive layer and the second adhesive layer may include a photosensitive tack-reducing material and an adhesive layer, and the photosensitive tack-reducing material is in contact adhesion with the light-transmitting material.

[0019] In a possible implementation, the photosensitive tack-reducing component is annular, wherein: the light guide is an annular structure, the at least one light incident hole includes a plurality of light incident holes, and the plurality of light incident holes are arranged at intervals along the circumferential direction of the light guide; or, the light guide is a plate-shaped structure, the at least one light incident hole is arranged corresponding to the middle of the light guide or the at least one light incident hole includes a plurality of light incident holes, and the plurality of light incident holes are arranged at intervals along the outer peripheral edge of the light guide. That is to say, in this implementation, the photosensitive tack-reducing component is annular, the light guide can be an annular structure or a plate-shaped structure, the at least one light incident hole can be one light incident hole or a plurality of light incident holes, and the plurality of light incident holes can be arranged at intervals along the circumferential direction of the light guide.

[0020] In a second aspect, an embodiment of the present application provides an electronic device, and the electronic device includes the display component provided in the first aspect above.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent specific embodiment part. Description of the Drawings

[0022] The following briefly introduces the drawings required for the description of the embodiments or the prior art.

[0023] Figure 1Schematic diagram of the exploded structure of the display component provided by the first embodiment of the present application;

[0024] Figure 2 is Figure 1 Schematic diagram of the assembled structure of the display component shown after removing the display screen;

[0025] Figure 3 Exemplary cross-sectional structure diagram of the photosensitive tack reduction component of the display component according to an embodiment of the present application;

[0026] Figure 4A is Figure 1 A cross-sectional schematic diagram of a partial structure of the display component shown;

[0027] Figure 4B is Figure 4A A modified cross-sectional schematic diagram of a partial structure of the display component shown;

[0028] Figure 5A is Figure 1 Another cross-sectional schematic diagram of a partial structure of the display component shown;

[0029] Figure 5B is Figure 5A A modified cross-sectional schematic diagram of a partial structure of the display component shown;

[0030] Figure 6A is Figure 1 Another cross-sectional schematic diagram of a partial structure of the display component shown;

[0031] Figure 6B is Figure 6A A modified cross-sectional schematic diagram of a partial structure of the display component shown;

[0032] Figure 7 Cross-sectional schematic diagram of a partial structure of the display component provided by the second embodiment of the present application. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application.

[0034] In the description of the present application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0035] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or a contact connection or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0036] In the description of this specification, specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0037] Currently, due to the high unit prices of the rotating shaft of the folding machine and the flexible screen assembly, the overall cost cannot be reduced. The high overall selling price of the folding machine makes it impossible to be the first choice for ordinary consumers to purchase. Moreover, when the folding machine, such as a mobile phone, needs to have its screen disassembled for repair, most of the flexible inner screens are scrapped, resulting in extremely high repair costs. Since the manufacturing and repair costs will be comprehensively reflected in the cost of the overall machine's bill of material (BOM), therefore, how to reuse the flexible screen on the premise that the overall machine BOM cannot be reduced has become a key link to reduce costs and enhance the competitiveness of the overall machine. That is, if the screen can be reused when disassembling the mobile phone for repair, there is no need to install a new flexible screen, which can cause the overall selling price of the machine to drop sharply.

[0038] When bonding the display screen and the middle frame by dispensing glue, during disassembly, the glue can be first heated to soften it, and then a disassembly fixture can be used for disassembly. The heating disassembly efficiency is low and the fixture is likely to scratch the appearance surface of the middle frame, resulting in the scrapping of the middle frame. Compared with a rigid display screen, this disassembly solution is more difficult to operate for a flexible folding screen, and the larger the area of the flexible folding screen, the easier it is to be damaged, resulting in a lower reuse efficiency of the flexible folding screen.

[0039] If the flexible folding screen uses ordinary back glue to bond with the middle frame, during disassembly, alcohol is generally used to penetrate and corrode to reduce the viscosity of the glue layer. Since alcohol has a certain degree of corrosiveness, it will damage the internal laminations of the flexible screen, such as the protective layer (cover), the display layer (pannel), the support layer (bracket), etc. to varying degrees, which is not conducive to improving the reuse efficiency of the flexible folding screen and results in a relatively high repair cost for the overall machine.

[0040] In view of this, the embodiments of the present application provide a display assembly and an electronic device including the display assembly, which facilitate the disassembly of the display screen, have a relatively high disassembly efficiency, do not damage the display screen, improve the reuse efficiency of the display screen, and are conducive to reducing the repair cost of the overall machine. Specifically, the embodiments of the present application use light-induced adhesion reduction to disassemble the display screen. The main scenario can be applicable to the disassembly of the flexible inner screen of a folding machine, and of course, it can also be applicable to the disassembly of a rigid screen.

[0041] Figure 1A schematic diagram of the exploded structure of the display assembly provided in the first embodiment of the present application. Figure 2 for Figure 1 The assembly structure diagram of the display assembly after removing the display screen is shown. Figure 1 and Figure 2 As shown, the display assembly includes a display screen 1, a middle frame assembly 2 and a photosensitive debonding assembly 3. The display screen 1 may be a rigid screen; or, the display screen may also be a flexible screen, such as a folding screen. The middle frame assembly 2 includes a middle frame 21 and a light guide 22. The middle frame 21 has an installation space S. The installation space S may be a sink, and at least one light entrance hole H is provided on the bottom wall of the installation space S. The light guide 22 is provided in the installation space S and covers at least one light entrance hole H. The light entrance hole H may be processed by a numerically controlled milling machine, also known as a CNC (computer numerical control) milling machine.

[0042] The photosensitive detackifying component 3 is located between the display screen 1 and the middle frame component 2, and the first side of the photosensitive detackifying component 3 is bonded to the display screen 1, and the second side of the photosensitive detackifying component 3 is bonded to the middle frame component 2. Light can enter the light guide 22 through the light entrance hole H, and can be transmitted to the photosensitive detackifying component 3 through the light guide 22, so that the viscosity of the photosensitive detackifying component 3 is reduced, so that the display screen 1 and the middle frame component 2 are separated. Figure 1 In FIG. 1 , a total of six light entrance holes H are shown. Figure 2 In FIG. 1 , the propagation path of the light is exemplarily shown by arrows.

[0043] In the display assembly of the embodiment of the present application, light can enter the light guide 22 through the light entrance hole H, and can be transmitted to the photosensitive viscosity-reducing component 3 through the light guide 22, so that the viscosity of the photosensitive viscosity-reducing component 3 is reduced to separate the display screen 1 from the middle frame assembly 2. This facilitates the disassembly of the display screen 1 with high disassembly efficiency and will not damage the display screen, thereby improving the reuse efficiency of the display screen and helping to reduce the maintenance cost of the entire machine.

[0044] Continue to refer Figure 1 and Figure 2 , the photosensitive viscosity-reducing component 3 may be annular, and the light guide 22 may be a plate-like structure. In this case, at least one light entrance hole H may include multiple light entrance holes H, and the multiple light entrance holes H are arranged at intervals along the outer peripheral edge of the light guide 22. Alternatively, at least one light entrance hole H may be arranged corresponding to the middle part of the light guide 22. In addition, the light guide 22 may also be an annular structure, and at least one light entrance hole H may include multiple light entrance holes H, and the multiple light entrance holes H are arranged at intervals along the circumferential direction of the light guide 22.

[0045] Figure 3 FIG. 1 is a schematic cross-sectional view of an exemplary structure of a photosensitive debonding component of a display component of an embodiment of the present application. Figure 3As shown in the figure, the photosensitive adhesion-reducing component 3 includes a substrate 31, a first adhesive layer 32, and a second adhesive layer 33. The substrate 31 can be light-transmissive or light-opaque. For example, the substrate 31 can be made of materials such as polyethylene glycol terephthalate (PET). The first adhesive layer 32 is disposed on the side of the substrate 31 facing the display screen 1. The second adhesive layer 33 is disposed on the side of the substrate 31 facing the middle frame 21. Among them, at least one of the first adhesive layer 32 and the second adhesive layer 33 includes a photosensitive adhesion-reducing material, and after light propagates to the photosensitive adhesion-reducing material, the viscosity of the photosensitive adhesion-reducing material is reduced. Moreover, the photosensitive adhesion-reducing material can be an ultraviolet ray (UVR) adhesion-reducing solution or other optical adhesion-reducing materials in other wavelength bands.

[0046] Further, according to whether the first adhesive layer 32 includes a photosensitive adhesion-reducing material, it can be divided into the following two cases:

[0047] The first case - the first adhesive layer 32 may include a first photosensitive adhesion-reducing material N1 or a first photosensitive adhesion-reducing material N1 and a first adhesive layer J1 arranged in a stacked manner; the second adhesive layer 33 includes at least one of a second photosensitive adhesion-reducing material N2 and a second adhesive layer J2, and the substrate 31 is a light-transmissive material.

[0048] The second case - the first adhesive layer 32 may include a first adhesive layer J1 but does not include a first photosensitive adhesion-reducing material N1, the second adhesive layer 33 includes a second photosensitive adhesion-reducing material N2 or a second photosensitive adhesion-reducing material N2 and a second adhesive layer J2 arranged in a stacked manner, and the substrate 31 is a light-transmissive material or a light-opaque material.

[0049] In Figure 3 the substrate 31 is a light-transmissive material. The first adhesive layer 32 includes a first photosensitive adhesion-reducing material N1 and a first adhesive layer J1 arranged in a stacked manner, and the first photosensitive adhesion-reducing material N1 is located between the substrate 31 and the first adhesive layer J1; the second adhesive layer 33 includes a second photosensitive adhesion-reducing material N2 and a second adhesive layer J2 arranged in a stacked manner, and the second photosensitive adhesion-reducing material N2 is located between the substrate 31 and the second adhesive layer J2.

[0050] Moreover, the first adhesive layer J1 can be combined with the substrate 31 or the first photosensitive adhesion-reducing material N1 on the substrate 31 by means of coating or bonding; the second adhesive layer J2 can be combined with the substrate 31 or the second photosensitive adhesion-reducing material N2 on the substrate 31 by means of coating or bonding.

[0051] Figure 4A For Figure 1 is a cross-sectional schematic diagram of a partial structure of the display component shown. Figure 4B For Figure 4A is a cross-sectional schematic diagram of a variant of a partial structure of the display component shown. Figure 5A ForFigure 1 Another cross-sectional schematic diagram of the partial structure of the display component shown. Figure 5B is Figure 5A A cross-sectional schematic diagram of a variant of the partial structure of the display component shown. Figure 6A is Figure 1 Another cross-sectional schematic diagram of the partial structure of the display component shown. Figure 6B is Figure 6A A cross-sectional schematic diagram of a variant of the partial structure of the display component shown. As Figures 4A - 6B shown, the light guide member 22 includes a first light guide member 22a, and the first light guide member 22a includes a light-transmitting base material a1, a first reflective layer a2, and a second reflective layer a3. Among them, the light-transmitting base material a1 can be a transparent light guide film such as PET, and the transmittance can be greater than or equal to 80%.

[0052] The first reflective layer a2 is disposed on the first surface of the light-transmitting base material a1 facing the display screen 1. The second reflective layer a3 is disposed on the second surface of the light-transmitting base material a1 facing the middle frame assembly 2, and an opening K is provided at a portion of the second reflective layer a3 corresponding to the light incident hole H, so that light enters the light-transmitting base material a1 through the opening K and undergoes total reflection between the first reflective layer a2 and the second reflective layer a3 to propagate to the photosensitive tack reduction assembly 3.

[0053] Among them, at least one of the first reflective layer a2 and the second reflective layer a3 may include a grating. For example, the first reflective layer a2 is a grating; or, the second reflective layer a3 is a grating; or, both the first reflective layer a2 and the second reflective layer a3 are gratings. And the grating can be disposed on the light-transmitting base material a1 by imprinting or transfer printing, so that the manufacturing accuracy is relatively high, the accuracy of the light propagation path is relatively high, and it is ensured that the light can propagate to the photosensitive tack reduction assembly 3.

[0054] In addition, the grating may include an array of grating bodies, and the distance between adjacent grating bodies ranges from 100 nm to 10 μm. Specifically, the shape of the array of grating bodies can be set as needed, such as circular, rectangular, or irregular. In Figure 1 it, the array of grating bodies is arranged along mutually perpendicular first and second directions, and the distance between adjacent grating bodies along the first direction ranges from 100 nm to 10 μm, and the distance between adjacent grating bodies along the second direction ranges from 100 nm to 10 μm.

[0055] Optionally, at least one of the first reflective layer a2 and the second reflective layer a3 may include a reflective coating. For example, the first reflective layer a2 may be a reflective coating; alternatively, the second reflective layer a3 may be a reflective coating; or both the first reflective layer a2 and the second reflective layer a3 may be reflective coatings. Among them, the reflective coating may be a metal coating, such as silver, gold or copper, or a mixture thereof; or the reflective coating may also be a resin with a reflective function.

[0056] In one example, one of the first reflective layer a2 and the second reflective layer a3 includes a reflective coating, and the other of the first reflective layer a2 and the second reflective layer a3 includes a grating. As Figures 4A - 6B shown, the first reflective layer a2 is a grating and the second reflective layer a3 is a reflective coating. At this time, the bonding manner of the second side surface of the photosensitive viscosity-reducing component 3 to the middle frame component 2 may include but is not limited to the following three cases:

[0057] The first case - the edge of the middle frame extends out of the light guide member 22, and there may be the following two ways at this time:

[0058] Way 1: As Figure 4A shown, the second side surface of the photosensitive viscosity-reducing component 3 is bonded to the extended part of the middle frame 21, and the photosensitive viscosity-reducing component 3 is arranged around the outer peripheral wall of the light guide member 22, and light is emitted from the outer peripheral wall of the light guide member 22.

[0059] Specifically, light can be emitted from the outer peripheral wall of the light-transmitting base material a1 to the photosensitive viscosity-reducing component 3. When the first reflective layer a2 is a grating, light can also be emitted from the outer peripheral wall of the first reflective layer a2 to the photosensitive viscosity-reducing component 3. When the second reflective layer a3 is a grating, light can also be emitted from the outer peripheral wall of the second reflective layer a3 to the photosensitive viscosity-reducing component 3.

[0060] Way 2: As Figure 4B shown, a part of the second side surface of the photosensitive viscosity-reducing component 3 is bonded to the middle frame 21, and another part of the second side surface of the photosensitive viscosity-reducing component 3 is bonded to the outer peripheral edge of the light guide member 22, and light is emitted from the outer peripheral edge of the light guide member 22.

[0061] Specifically, the light emission path of the light may be the same as the light emission path in Way 1, or, on the basis of the light emission path in Way 1, if the light-transmitting base material a1 extends out of the first reflective layer a2, light can also be emitted from the upper surface of the extended part of the light-transmitting base material a1 away from the middle frame 21 to the photosensitive viscosity-reducing component 3.

[0062] The second case - the edge of the second reflective layer a3 extends out of the light-transmitting base material a1 and the first reflective layer a2, and there may be the following two ways at this time:

[0063] Way 1: As Figure 5AAs shown, the second side of the photosensitive adhesion-reducing component 3 is bonded to the protruding part of the second reflective layer a3, and the photosensitive adhesion-reducing component 3 is disposed around the outer peripheral wall of the light-transmitting substrate a1 and the outer peripheral wall of the first reflective layer a2, and light is emitted from at least one of the protruding part of the second reflective layer a3, the outer peripheral wall of the light-transmitting substrate a1, and the outer peripheral wall of the first reflective layer a2.

[0064] Specifically, light can be emitted from the outer peripheral wall of the light-transmitting substrate a1 to the photosensitive adhesion-reducing component 3; when the first reflective layer a2 is a grating, light can also be emitted from the outer peripheral wall of the first reflective layer a2 to the photosensitive adhesion-reducing component 3; when the second reflective layer a3 is a grating, light can also be emitted from the protruding part of the second reflective layer a3 to the photosensitive adhesion-reducing component 3.

[0065] Mode 2: As Figure 5B shown, a part of the second side of the photosensitive adhesion-reducing component 3 is bonded to the protruding part of the second reflective layer a3, and another part of the second side of the photosensitive adhesion-reducing component 3 is bonded to the outer peripheral edge of the light-transmitting substrate a1 and / or the first reflective layer a2, and light is emitted from at least one of the protruding part of the second reflective layer a3, the outer peripheral edge of the light-transmitting substrate a1, and the outer peripheral wall of the first reflective layer a2.

[0066] Specifically, the light emission path of the light can be the same as that of the light in Mode 1, or, on the basis of the light emission path of the light in Mode 1, if the light-transmitting substrate a1 protrudes from the first reflective layer a2, light can also be emitted from the upper surface of the protruding part of the light-transmitting substrate a1 away from the middle frame 21 to the photosensitive adhesion-reducing component 3.

[0067] The third case - the edges of the light-transmitting substrate a1 and the second reflective layer a3 respectively protrude from the first reflective layer a2, light can be emitted from the protruding part of the light-transmitting substrate a1 to the photosensitive adhesion-reducing component 3, and, when the first reflective layer a2 is a grating, light can also be emitted from the outer peripheral wall of the first reflective layer a2 to the photosensitive adhesion-reducing component 3. At this time, there can be the following two modes:

[0068] Mode 1: As Figure 6A shown, the second side of the photosensitive adhesion-reducing component 3 is bonded to the protruding part of the light-transmitting substrate a1, and the photosensitive adhesion-reducing component 3 is disposed around the outer peripheral wall of the first reflective layer a2;

[0069] Mode 2: As Figure 6B shown, a part of the second side of the photosensitive adhesion-reducing component 3 is bonded to the protruding part of the light-transmitting substrate a1, and another part of the second side of the photosensitive adhesion-reducing component 3 is bonded to the outer peripheral edge of the first reflective layer a2.

[0070] That is to say, the photosensitive adhesion-reducing component 3 can not overlap with the light guide member 22 at all, as Figure 4A shown; the photosensitive adhesion-reducing component 3 can partially overlap with the light guide member 22, as Figure 4BAs shown; the photosensitive adhesive reducing component 3 can also completely overlap with the light guide member 22, such as Figure 5A , Figure 5B , Figure 6A and Figure 6B shown.

[0071] When disassembling the flexible display screen, the main board installed in the middle frame 21 and the battery component (not shown in the figure) can be disassembled first; then, the light matching the photosensitive adhesive reducing material in the photosensitive adhesive reducing component 3 enters the light-transmitting substrate a1 of the first light guide member 22a through the light incident hole H and the opening K on the second reflective layer a3, and is totally reflected between the grating as the first reflective layer a2 and the reflective coating as the second reflective layer a3. The light energy is evenly dispersed to the area of the photosensitive adhesive reducing component 3 through the first light guide member 22a, that is, the first light guide member 22a can propagate the light incident through the light incident hole H to the entire photosensitive adhesive reducing component 3, as Figure 2 shown. When the light reacts with the photosensitive adhesive reducing material in the matching photosensitive adhesive reducing component 3, the separation of the middle frame component 2 and the display screen 1 can be realized.

[0072] Figure 7 is a cross-sectional schematic view of a partial structure of the display component provided by the second embodiment of the present application. As Figure 7 shown, the light guide member 22 includes a second light guide member 22b, and the second light guide member 22b includes an optical waveguide b1, an input grating b2, and an output grating b3. The optical waveguide b1 has a light incident area and a light output area. The light incident area is located on the side of the optical waveguide b1 facing the middle frame 21 and corresponds to the light incident hole H, and the light output area is located on the side of the optical waveguide b1 facing the display screen 1 and corresponds to the photosensitive adhesive reducing component 3. The light propagates from the light incident area to the light output area in the optical waveguide b1. The input grating b2 is arranged in the light incident area, and the input grating b2 can couple the light entering from the light incident hole H into the optical waveguide b1 in the light incident area. The output grating b3 is arranged in the light output area, and the second side of the photosensitive adhesive reducing component 3 is bonded to the output grating b3. The output grating b3 can couple the light in the optical waveguide b1 out at the light output area and make the light propagate to the photosensitive adhesive reducing component 3.

[0073] For the solution of connecting the display screen and the middle frame by means of dispensing or back gluing, when disassembling and repairing, it is not convenient to disassemble the display screen, and the display screen is easily damaged. The flexible display screen such as a folding screen is more difficult to operate and is more easily damaged when disassembling compared with the rigid display screen. That is to say, whether it is a rigid display screen or a flexible display screen, the existing disassembly method has a low disassembly efficiency, is easy to damage the display screen, makes the reuse efficiency of the display screen low, and results in a high maintenance cost for the whole machine.

[0074] In the embodiments of the present application, the principle of the adhesive backing of the display screen, such as a flexible folding screen, is adjusted. When the adhesive backing encounters specific light, its viscosity can be weakened or even reduced to 0, and the screen can be disassembled using the optical principle, with high disassembly efficiency and high reuse rate. Moreover, the specific light matches the nanoimprinted optical film using the optical waveguide principle, without the need for too many light inlet holes, with high structural strength and good reliability. In addition, the material is easily obtainable and the disassembly logic is simple.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and do not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display component, characterized in that, Comprising: A display screen (1); A middle frame assembly (2), including a middle frame (21) and a light guide member (22). The middle frame (21) has an installation space (S), and at least one light inlet hole (H) is provided on the bottom wall of the installation space (S). The light guide member (22) is arranged in the installation space (S) and covers the at least one light inlet hole (H); A photosensitive adhesive reducing assembly (3), located between the display screen (1) and the middle frame assembly (2). The first side surface of the photosensitive adhesive reducing assembly (3) is bonded to the display screen (1), and the second side surface of the photosensitive adhesive reducing assembly (3) is bonded to the middle frame assembly (2); Wherein, light can enter the light guide member (22) through the light inlet hole (H) and can be propagated to the photosensitive adhesive reducing assembly (3) through the light guide member (22), so that the viscosity of the photosensitive adhesive reducing assembly (3) is reduced and the display screen (1) is separated from the middle frame assembly (2).

2. The display component according to claim 1, wherein The light guide member (22) includes a first light guide member (22a), and the first light guide member (22a) includes: A light-transmitting base material (a1); A first reflective layer (a2), provided on the first surface of the light-transmitting base material (a1) facing the display screen (1); A second reflective layer (a3), provided on the second surface of the light-transmitting base material (a1) facing the middle frame assembly (2). An opening (K) is provided at a position of the second reflective layer (a3) corresponding to the light inlet hole (H), so that light enters the light-transmitting base material (a1) through the opening (K) and undergoes total reflection between the first reflective layer (a2) and the second reflective layer (a3) to be propagated to the photosensitive adhesive reducing assembly (3).

3. The display component according to claim 2, wherein The edge of the middle frame extends out of the light guide member (22), wherein: The second side surface of the photosensitive adhesive reducing assembly (3) is bonded to the extended part of the middle frame (21), and the photosensitive adhesive reducing assembly (3) is arranged around the outer peripheral wall of the light guide member (22), and the light exits from the outer peripheral wall of the light guide member (22); and / or, A part of the second side surface of the photosensitive adhesive reducing assembly (3) is bonded to the middle frame (21), and another part of the second side surface of the photosensitive adhesive reducing assembly (3) is bonded to the outer peripheral edge of the light guide member (22), and the light exits from the outer peripheral edge of the light guide member (22).

4. The display component according to claim 2, characterized in that, The edge of the second reflective layer (a3) extends out of the light-transmitting base material (a1) and the first reflective layer (a2), wherein: The second side surface of the photosensitive adhesive reducing assembly (3) is bonded to the extended part of the second reflective layer (a3), and the photosensitive adhesive reducing assembly (3) is arranged around the outer peripheral wall of the light-transmitting base material (a1) and the outer peripheral wall of the first reflective layer (a2), and the light exits from at least one of the extended part of the second reflective layer (a3), the outer peripheral wall of the light-transmitting base material (a1), and the outer peripheral wall of the first reflective layer (a2); or, A part of the second side of the photosensitive tackiness reducing component (3) is bonded to the protruding part of the second reflective layer (a3), and another part of the second side of the photosensitive tackiness reducing component (3) is bonded to the outer peripheral edge of the light-transmitting substrate (a1) and / or the first reflective layer (a2). The light is emitted from at least one of the protruding part of the second reflective layer (a3), the outer peripheral edge of the light-transmitting substrate (a1), and the outer peripheral wall of the first reflective layer (a2).

5. The display component according to claim 2, characterized in that, The edges of the light-transmitting substrate (a1) and the second reflective layer (a3) respectively protrude from the first reflective layer (a2). The light is emitted from the protruding part of the light-transmitting substrate (a1) or the light is emitted from the protruding part of the light-transmitting substrate (a1) and the outer peripheral wall of the first reflective layer (a2), where: The second side of the photosensitive tackiness reducing component (3) is bonded to the protruding part of the light-transmitting substrate (a1), and the photosensitive tackiness reducing component (3) is arranged around the outer peripheral wall of the first reflective layer (a2); or, A part of the second side of the photosensitive tackiness reducing component (3) is bonded to the protruding part of the light-transmitting substrate (a1), and another part of the second side of the photosensitive tackiness reducing component (3) is bonded to the outer peripheral edge of the first reflective layer (a2).

6. The display component according to any one of claims 2-5, characterized in that, At least one of the first reflective layer (a2) and the second reflective layer (a3) includes a grating, and the light can be emitted from the outer peripheral wall of the grating.

7. The display component according to claim 6, wherein: The grating is arranged on the light-transmitting substrate (a1) by an imprinting or transfer method; and / or, The grating includes an array of grating bodies, and the value range of the spacing distance between adjacent grating bodies is 100 nm - 10 μm.

8. The display component according to any one of claims 2 - 5, wherein: At least one of the first reflective layer (a2) and the second reflective layer (a3) includes a reflective coating; or, One of the first reflective layer (a2) and the second reflective layer (a3) includes a reflective coating, and the other of the first reflective layer (a2) and the second reflective layer (a3) includes a grating.

9. The display component according to claim 1, wherein The light guide member (22) includes a second light guide member (22b), and the second light guide member (22b) includes: An optical waveguide (b1) having a light incident area and a light emitting area. The light incident area is located on the side of the optical waveguide (b1) facing the middle frame (21) and corresponding to the light incident hole (H), and the light emitting area is located on the side of the optical waveguide (b1) facing the display screen (1) and corresponding to the photosensitive tackiness reducing component (3). The light propagates from the light incident area to the light emitting area in the optical waveguide (b1); An input coupling grating (b2) arranged in the light incident area, and the input coupling grating (b2) can couple the light entering from the light incident hole (H) into the optical waveguide (b1) in the light incident area. The output grating (b3) is disposed in the light-emitting area. The second side of the photosensitive adhesion-reducing component (3) is bonded to the output grating (b3). The output grating (b3) can couple out the light in the optical waveguide (b1) at the light-emitting area and make the light propagate to the photosensitive adhesion-reducing component (3).

10. The display component according to any one of claims 1-5, characterized in that, The photosensitive adhesion-reducing component (3) includes: a substrate (31); a first adhesive layer (32) disposed on the side of the substrate (31) facing the display screen (1); a second adhesive layer (33) disposed on the side of the substrate (31) facing the middle frame (21); wherein at least one of the first adhesive layer (32) and the second adhesive layer (33) includes a photosensitive adhesion-reducing material. After the light propagates to the photosensitive adhesion-reducing material, the viscosity of the photosensitive adhesion-reducing material is reduced.

11. The display component according to claim 10, wherein: the first adhesive layer (32) includes a first photosensitive adhesion-reducing material (N1) or includes a first photosensitive adhesion-reducing material (N1) and a first adhesive layer (J1) disposed in a stacked manner; the second adhesive layer (33) includes at least one of a second photosensitive adhesion-reducing material (N2) and a second adhesive layer (J2), and the substrate (31) is a light-transmitting material; or, the first adhesive layer (32) includes a first adhesive layer (J1), the second adhesive layer (33) includes a second photosensitive adhesion-reducing material (N2) or includes a second photosensitive adhesion-reducing material (N2) and a second adhesive layer (J2) disposed in a stacked manner, and the substrate (31) is a light-transmitting material or a light-impermeable material.

12. The display component according to claim 10, wherein The substrate (31) is a light-transmitting material, wherein: the first adhesive layer (32) includes a first photosensitive adhesion-reducing material (N1) and a first adhesive layer (J1) disposed in a stacked manner, and the first photosensitive adhesion-reducing material (N1) is located between the substrate (31) and the first adhesive layer (J1); the second adhesive layer (33) includes a second photosensitive adhesion-reducing material (N2) and a second adhesive layer (J2) disposed in a stacked manner, and the second photosensitive adhesion-reducing material (N2) is located between the substrate (31) and the second adhesive layer (J2).

13. The display component according to any one of claims 1-5, characterized in that, The photosensitive adhesion-reducing component (3) is annular, wherein: the light guide member (22) is an annular structure, and the at least one light incident hole (H) includes a plurality of light incident holes (H), and the plurality of light incident holes (H) are spaced apart in the circumferential direction of the light guide member (22); or, the light guide member (22) is a plate-like structure, the at least one light incident hole (H) is disposed corresponding to the middle of the light guide member (22) or the at least one light incident hole (H) includes a plurality of light incident holes (H), and the plurality of light incident holes (H) are spaced apart along the outer peripheral edge of the light guide member (22).

14. An electronic device, characterized in that, including the display component according to any one of claims 1-13.

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