Folding screen assembly, preparation method and electronic device

Abstract

The application discloses a folding screen assembly, a preparation method and electronic equipment. The folding screen assembly comprises a screen body, a support provided on one side of the screen body to support the screen body, and the support is foldable with the screen body. The support is provided with a blind hole at a bending position, and a radial dimension of an end of the blind hole away from the screen body is greater than a radial dimension of an end of the blind hole towards the screen body.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of foldable screen product manufacturing, and particularly relates to a foldable screen assembly, a preparation method and an electronic device. BACKGROUND

[0002] At present, foldable screen mobile phones are deeply loved by the majority of users. However, the folding position of the foldable screen mobile phone is stretched and compressed during the unfolding and folding process. After long-term use, a wavy mark is easily generated at the folding position, and the more the folding times are, the more obvious the mark is, which affects the user experience. SUMMARY

[0003] The present application aims to provide a foldable screen assembly, a preparation method and an electronic device, which can at least solve the problem that the folding position of the foldable screen mobile phone in the prior art is prone to generate a mark.

[0004] In a first aspect, the present application provides a foldable screen assembly, comprising: a screen body; a support member arranged on one side of the screen body to support the screen body, the support member being foldable with the screen body, and the support member being provided with a blind hole at a bending position, the radial dimension of one end of the blind hole away from the screen body being greater than the radial dimension of the other end of the blind hole toward the screen body.

[0005] In a second aspect, a preparation method of a foldable screen assembly is provided, which is applied to the foldable screen assembly in the above-mentioned embodiment, and the preparation method comprises:

[0006] providing a screen body and a support member;

[0007] arranging the screen body on the support member, the support member being foldable with the screen body;

[0008] performing a half-etching treatment at a bending area of the support member to etch a blind hole, and the radial dimension of one end of the blind hole away from the screen body being greater than the radial dimension of the other end of the blind hole toward the screen body.

[0009] In a third aspect, an electronic device is provided, comprising the foldable screen assembly in the above-mentioned embodiment.

[0010] In the present application, a blind hole is arranged at the bending position of the support member, and the blind hole is arranged to have different hole diameters at two ends. By arranging the blind hole, the stress at the bending position can be effectively relieved and released during the folding and unfolding of the foldable screen assembly, so as to weaken the mark and make the mark transition gently, thereby effectively preventing the generation of a mark at the bending position of the foldable screen assembly.

[0011] The stress at the bending position can be effectively relieved and released, the mark is weakened, and the mark is gently transitioned, thereby effectively preventing the generation of a mark at the bending position of the foldable screen assembly.

[0012] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attendant drawings or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0013] 0The foregoing and / or additional aspects and advantages of the present application are achieved by providing a folding screen assembly as specified in the claims.

[0014] Figure 1 is a sectional view of a folding screen assembly according to an embodiment of the present application;

[0015] Figure 2 is a sectional view of a support of a folding screen assembly according to an embodiment of the present application;

[0016] Figure 3 is another sectional view of a support of a folding screen assembly according to an embodiment of the present application;

[0017] Figure 4 is still another sectional view of a support of a folding screen assembly according to an embodiment of the present application.

[0018] Figure 5 is Figure 4 is a force analysis diagram of position A in FIG. 4;

[0019] Figure 6 is Figure 4 is a force analysis diagram of position B in FIG. 4.

[0020] REFERENCE NUMERALS:

[0021] 0screen body 10;

[0022] support 20; blind hole 21; through hole 22;

[0023] insulator 31; electrified body 32;

[0024] folding cover plate 41; glass cover plate 42; polarizer 43; support film 44; light shielding layer 45;

[0025] first optical adhesive 51; second optical adhesive 52;

[0026] 5first pressure-sensitive adhesive 61; second pressure-sensitive adhesive 62. DETAILED DESCRIPTION

[0027] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] In the specification and claims of this invention, the terms "first" and "second" may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] The foldable screen component provided in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0032] like Figure 1 As shown, the foldable screen assembly according to an embodiment of the present invention includes a screen body 10 and a support member 20.

[0033] Specifically, the support 20 is arranged at one side of the screen body 10 to support the screen body 10, and the support 20 is foldable with the screen body 10. The support 20 is provided with a blind hole 21 at the bending position, and the radial dimension of the end of the blind hole 21 away from the screen body 10 is greater than the radial dimension of the end of the blind hole 21 toward the screen body 10.

[0034] In other words, referring to Figure 1 , the folding screen assembly according to the embodiment of the present application mainly consists of a screen body 10 and a support 20. The support 20 is arranged at the bottom surface of the screen body 10, and the screen body 10 is a flexible screen. The support 20 can support the screen body 10, and the support 20 is foldable with the screen body 10. As shown in Figures 1 to 4 , the support 20 is provided with a blind hole 21 at the bending position, and referring to Figure 1 and Figure 2 , the radial dimension of the end of the blind hole 21 away from the screen body 10 can be greater than the radial dimension of the end of the blind hole 21 toward the screen body 10, so that the blind hole 21 is configured to have different hole diameters at two ends. By arranging the blind hole 21, the stress at the bending position can be effectively relieved and released during folding and unfolding of the folding screen assembly, so as to weaken the marks, make the marks transition gently, and effectively prevent the marks from being generated at the bending position of the folding screen assembly.

[0035] It should be noted that concentrated stress will be generated at the bending position during folding or unfolding of the folding screen assembly. Therefore, when being folded for many times, the folding screen assembly is prone to generate wave-shaped or strip-shaped marks at the bending position under the stress, thereby affecting the appearance of the product and the practical experience of the user. The present application can separate and release the stress pulled during the bending process by arranging the blind hole 21 at the bending area of the folding screen assembly, so as to effectively relieve and release the stress, weaken the marks, make the marks transition gently, and solve the problem of stress concentration at the bending position.

[0036] The folding screen assembly of the present application can be applied to folding screen products such as folding screen mobile phones and folding screen computers, and effectively solves the problem that the bending area of the folding screen product is prone to generate marks.

[0037] Therefore, the folding screen assembly according to the embodiment of the present application is provided with the blind hole 21 at the bending position of the support 20, and the blind hole 21 is arranged to have different hole diameters at two ends. By arranging the blind hole 21, the stress at the bending position can be effectively relieved and released during folding and unfolding of the folding screen assembly, so as to weaken the marks, make the marks transition gently, and effectively prevent the marks from being generated at the bending position of the folding screen assembly.

[0038] According to one embodiment of the present application, the hole wall of the blind hole 21 is stepped along the axial direction of the blind hole 21.

[0039] As shown in the drawings, Figures 1 to 4 The blind hole 21 of the present application can be designed in steps, so that the hole wall of the blind hole 21 is arranged in steps along the axial direction of the blind hole 21, so as to better solve the problem of cliff stress concentration at the bending area, further effectively relieve and release the stress at the bending position, achieve the purpose of weakening the imprint, and make the imprint transition gently.

[0040] In some specific manners of the present application, an insulator 31 is arranged on the hole wall of the blind hole 21, and a charged body 32 is arranged on the side of the insulator 31 away from the side wall of the blind hole 21, and the charged body 32 has the same charge. The insulator 31 is an insulating adhesive layer, and the charged body 32 is a metal patch with the same charge.

[0041] In other words, referring to Figure 1 and Figure 4 , the insulator 31 is arranged on the hole wall of the blind hole 21, and the hole wall of the blind hole 21 includes a side wall and a bottom wall. The charged body 32 is arranged on the side of the insulator 31 away from the side wall of the blind hole, and the side of the insulator 31 away from the bottom wall of the blind hole is not provided with the charged body 32. The insulator 31 is arranged on the hole wall, the charged body 32 is arranged on the insulator 31 (except for the part corresponding to the bottom wall of the blind hole 21), the insulator 31 can insulate the charged body 32 and the support 20, and the charged body 32 can be bonded to the insulator 31. The charged body 32 has the same charge, and the amount of charge on the opposite sides of the charged body is equal. The insulator 31 can be an insulating adhesive layer, and the charged body 32 can be a metal patch with the same charge.

[0042] Taking the cross-sectional view of the blind hole 21 as an example, as shown in Figure 1 and Figure 4 , a layer of insulator 31 is coated on the left and right sides of the blind hole 21 of the support 20, and a charged body 32 is arranged on the insulator 31. The charged body 32 has the same charge and the amount of charge on the left and right sides of the blind hole 21 is equal, so that each side of the blind hole 21 is in a state of force balance. If the deformation arch at the bending position is caused during the bending process, the repulsive force on the left and right sides of the blind hole 21 will increase due to the decrease in distance, thereby preventing the support 20 from arching and solving the imprint problem.

[0043] In the present application, as shown in Figure 5 and Figure 6 , the force on the left and right side positions of the blind hole 21 is analyzed, and the positions A and B (the positions A and B are substantially shown in Figure 4The blind hole 21 is in a balanced state under the four forces F1 / F2 / F3 / F4, and the charge amount of the AB position is equal, so that each side of the blind hole 21 is in a state of force balance. If the deformation arching state is caused in the bending process, the repulsion force F4 on the left and right sides of the blind hole 21 will increase due to the decrease of the distance (the smaller the distance, the greater the repulsion force), thereby preventing the support piece 20 from bending and arching, and completely solving the problem of the imprint.

[0044] As shown in 5 and Figure 6 F3=F4 on the X axis, and the two forces are balanced. F4 is the Coulomb force, and F3 is the supporting force of the side of the charged body 32.

[0045] (F4=k Q1Q2 / R 2 , k represents the electrostatic force constant, Q1 represents the charge amount of the charged body 32 at the A position, Q2 represents the charge amount of the charged body 32 at the B position, Q1=Q2, and R is the distance between the two charges).

[0046] On the Y axis, F1=F2, and the two forces are balanced. F2 is the gravity of the charged body 32 itself, and F1 is the upward supporting force of the charged body 32.

[0047] In some specific embodiments of the present application, the support piece 20 is an alloy material piece, and the blind hole 21 is etched at the bending position of the alloy material piece. The blind hole 21 is a plurality of blind holes 21, and the plurality of blind holes 21 are arranged at intervals. The support piece 20 is also provided with a through hole 22, and the plurality of blind holes 21 are arranged at intervals on the two sides of the radial direction of the through hole 22.

[0048] In other words, the support piece 20 can be made of an alloy material piece, for example, the support piece 20 can be made of titanium alloy. The blind hole 21 can be obtained by etching at the bending position of the alloy material piece. As shown in Figures 1 to 4 The blind hole 21 can be a plurality of blind holes 21, and the plurality of blind holes 21 are arranged at intervals. The support piece 20 is also provided with a through hole 22, and the plurality of blind holes 21 can be arranged in rows on the two sides of the radial direction of the through hole 22. By arranging the plurality of blind holes 21 and the through hole 22, the stress can be further relieved and released, and the imprint in the bending area can be prevented.

[0049] The folding screen assembly of the present application fully utilizes the design of the graphical, mechanical and repulsion principle of the same charge, and effectively solves the problem of the stripe-shaped imprint caused by the deformation arching of the bending position in the process of bending the folding screen assembly.

[0050] The present application can weaken the surface stripe by releasing and buffering the stress pulled by the bending process through the stepwise patterning design of the titanium alloy (support 20), and separate the charged body 32 from the titanium alloy through the insulator 31. Before folding, the two sides of the blind hole 21 are coated with insulating glue and the charged body 32 with the same charge amount and the same charge is attached, so that the two sides of A and B are in a state of force balance. After folding, the position of the blind hole 21 will be deformed and arch upward, so that the distance on both sides of each blind hole 21 position will become smaller, and the repulsive force between the two sides of the blind hole 21 will increase, thereby preventing the titanium alloy from arching, effectively solving the problem of stripe-shaped marks caused by deformation arching after folding, and improving the appearance performance of the product and the user's folding experience.

[0051] In the present application, referring to Figure 1 , the folding screen assembly can further include a folding cover plate 41, a glass cover plate 42, a polarizer 43, a support film 44, a light shielding layer 45 and the like arranged in sequence. Among them, the folding cover plate 41 can be a PET resin material (Polyethylene Terephthalate, PET), and the glass cover plate 42 is an ultra-thin glass (UTG). The folding cover plate 41 and the glass cover plate 42 are connected by the first optical adhesive 51 (Optically Clear Adhesive, OCA). The polarizer 43 (POL) and the glass cover plate 42 are connected by the second optical adhesive 52. The polarizer 43 is arranged on the screen body 10, and the support film 44 and the light shielding layer 45 are arranged between the screen body 10 and the support 20 (titanium alloy), and the support film 44 is used to protect and support the screen body 10.

[0052] The support film 44 and the light shielding layer 45 are connected by the first pressure-sensitive adhesive 61 (Pressure-sensitive adhesive, PSA). The light shielding layer 45 is a PET resin material. The light shielding layer 45 can not only serve as the substrate of the pressure-sensitive adhesive, but also play a role in light shielding. The light shielding layer 45 and the support 20 (titanium alloy) are connected by the second pressure-sensitive adhesive 62. The blind hole 21 and the through hole 22 are arranged at the bending position of the support 20 (titanium alloy), wherein the blind hole 21 is mainly used to reduce the bending stress and support the screen body 10. The through hole 22 is mainly used to reduce the bending stress and the rebound force.

[0053] Of course, other structures of the folding screen assembly and their working principles can be understood and implemented by those skilled in the art, and will not be described in detail in the present application.

[0054] According to the folding screen assembly provided by the embodiment of the present application, the blind hole 21 is arranged at the bending position of the support 20, and the hole diameters at the two ends of the blind hole 21 are different. By arranging the blind hole 21, the stress at the bending position can be effectively relieved and released during folding and unfolding of the folding screen assembly, so as to weaken the indentation, make the indentation transition gentle, and effectively prevent the indentation from being generated at the bending position of the folding screen assembly.

[0055] According to a second aspect of the present application, as Figures 1 to 4 indicated, a preparation method of a folding screen assembly is provided, which is applied to the folding screen assembly in the above embodiment, and the preparation method comprises the following steps:

[0056] A screen body 10 and a support 20 are arranged.

[0057] The screen body 10 is arranged on the support 20, and the support 20 can be folded with the screen body 10.

[0058] The semi-etching treatment is performed on the bending area of the support 20 to etch the blind hole 21, and the radial dimension of the end of the blind hole 21 away from the screen body 10 is greater than the radial dimension of the end of the blind hole 21 towards the screen body 10.

[0059] That is, referring to Figure 1 In the preparation method of the folding screen assembly of the present application, firstly, a screen body 10 and a support 20 can be arranged, and the screen body 10 and the support 20 are both flexible materials. Then, the screen body 10 is arranged on the support 20, so that the support 20 can be folded with the screen body 10. Finally, as Figure 2 indicated, the semi-etching treatment can be performed on the bending area of the support 20 by using the etching process to etch the blind hole 21 on the support 20. And the blind hole 21 is etched to be that the radial dimension of the end of the blind hole 21 away from the screen body 10 is greater than the radial dimension of the end of the blind hole 21 towards the screen body 10. By etching the blind hole 21 at the bending position of the support 20, the stress at the bending position can be effectively relieved and released during folding and unfolding of the folding screen assembly, so as to weaken the indentation, make the indentation transition gentle, effectively prevent the indentation from being generated at the bending position of the folding screen assembly, and improve the user experience.

[0060] According to an embodiment of the present application, the hole wall of the blind hole 21 is etched to be a sawtooth-shaped hole wall in a stepped manner along the axial direction of the blind hole 21.

[0061] That is, the blind hole 21 of the present application can be designed in a stepped manner, so that the hole wall of the blind hole 21 is arranged in a sawtooth-shaped hole wall in a stepped manner along the axial direction of the blind hole 21, so as to better solve the problem of cliff stress concentration at the bending area, further effectively relieve and release the stress at the bending position, achieve the purpose of weakening the indentation and making the indentation transition gentle, and improve the user experience.

[0062] According to one embodiment of the present application, the preparation method further comprises:

[0063] An insulator 31 is arranged on the hole wall of the blind hole 21;

[0064] An electrified body 32 is arranged on the side of the insulator 31 away from the side wall of the blind hole 21, wherein the electrified body 32 has the same charge.

[0065] In the preparation method of the present application, the following is involved Figure 3 and Figure 4 The insulator 31 can be arranged on the hole wall of the blind hole 21, the electrified body 32 can be arranged on the insulator 31 (except for the part corresponding to the bottom wall of the blind hole 21), the insulator 31 can isolate the electrified body 32 and the support 20, and the electrified body 32 can be bonded to the insulator 31. The electrified body 32 has the same charge, and the amount of charge on the opposite sides of the electrified body is equal. The insulator 31 can be an insulating adhesive layer, and the electrified body 32 can be a metal patch with the same charge.

[0066] Taking the cross-sectional view of the blind hole 21 as an example, a layer of insulator 31 is coated on the left and right sides of the blind hole 21 of the support 20, and the electrified body 32 is arranged on the insulator 31. The electrified body 32 has the same charge and the amount of charge on the left and right sides of the blind hole 21 is equal, so that each side of the blind hole 21 is in a state of force balance. If the bending position is deformed and arched during bending, the repulsive force on the left and right sides of the blind hole 21 will increase due to the decrease in distance, thereby preventing the support 20 from bending and arching, and solving the problem of indentation.

[0067] For those skilled in the art, other structures of the folding screen assembly and the arrangement thereof can be understood and implemented, and will not be described in detail in the present application.

[0068] According to the preparation method of the folding screen assembly according to the embodiment of the present application, the blind hole 21 is arranged at the bending position of the support 20, and the hole diameter of the blind hole 21 at the two ends is different. By arranging the blind hole 21, the stress at the bending position can be effectively relieved and released during folding and unfolding of the folding screen assembly, so as to weaken the indentation and make the indentation transition smooth, thereby effectively preventing the indentation at the bending position of the folding screen assembly and improving the user experience. The preparation method is simple in process, ingenious in design and easy to operate.

[0069] According to a third aspect of the present application, an electronic device is provided, comprising the folding screen assembly in the above-mentioned embodiments. The electronic device can be a folding screen mobile phone, a folding screen computer, or other folding products. Since the folding screen assembly according to the embodiments of the present application has the above-mentioned technical effects, the electronic device according to the embodiments of the present application should also have corresponding technical effects, that is, the electronic device of the present application can effectively relieve and release the stress at the bending position during folding and unfolding, achieve the purpose of weakening the indentation, and make the indentation transition gently, thereby effectively preventing the indentation from being generated at the bending position of the folding screen assembly, ensuring the appearance is beautiful, and improving the user experience.

[0070] Other structures of the electronic device and working principles thereof are understandable and achievable for those skilled in the art, and will not be described in detail in the present application.

[0071] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0072] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A folding screen assembly comprising: The application relates to a folding screen assembly. The folding screen assembly comprises a screen body and a support arranged on one side of the screen body to support the screen body, wherein the support is foldable with the screen body, the support is provided with a blind hole at a bending position, the radial dimension of the blind hole at the end away from the screen body is larger than the radial dimension of the blind hole at the end towards the screen body, an insulator is arranged on the hole wall of the blind hole, a charged body is arranged on the side of the insulator away from the side wall of the blind hole, the charged body has the same kind of electric charge, the amount of electric charge of the charged bodies on the opposite sides of the blind hole is equal, and the repulsion force of the opposite sides of the blind hole increases due to the reduced distance in the folded state of the support. The hole wall of the blind hole is in a stepped shape along the axial direction of the blind hole. The insulator is an insulating glue layer, and the charged body is a metal patch with the same kind of electric charge.

2. The folding screen assembly of claim 1, wherein, The support is an alloy material, and the blind hole is etched at the bending position of the alloy material.

3. The folding screen assembly of claim 1, wherein, The blind hole is a plurality of blind holes, the plurality of blind holes are arranged at intervals, the support is further provided with a through hole, and the plurality of blind holes are arranged at intervals on the two sides of the through hole in the radial direction.

4. The folding screen assembly of claim 1, wherein, The preparation method comprises the following steps:

5. The folding screen assembly of claim 1, wherein, arranging a screen body and a support; 6.A method for manufacturing a folding screen assembly, applied to the folding screen assembly of any one of claims 1-5, characterized in that, arranging the screen body on the support, wherein the support is foldable with the screen body; performing a half-etching treatment at the bending area of the support to etch a blind hole, wherein the radial dimension of the blind hole at the end away from the screen body is larger than the radial dimension of the blind hole at the end towards the screen body; arranging an insulator on the hole wall of the blind hole; arranging a charged body on the side of the insulator away from the side wall of the blind hole, wherein the charged body has the same kind of electric charge, the amount of electric charge of the charged bodies on the opposite sides of the blind hole is equal, and the repulsion force of the opposite sides of the blind hole increases due to the reduced distance in the folded state of the support. etching a sawtooth-shaped hole wall in a stepped shape along the axial direction of the blind hole at the bending area of the support. The folding screen assembly comprises the folding screen assembly according to any one of claims 1-5.

7. The method of claim 6, wherein the folding the screen assembly comprises folding the screen assembly in half along a first fold line, folding the screen assembly in half along a second fold line, and folding the screen assembly in half along a third fold line. ​ 8. An electronic device, comprising: ​

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