Display screen assembly, supporting piece and electronic equipment

Abstract

The invention provides a display screen assembly, a supporting piece and electronic equipment. The supporting piece comprises a first supporting layer, a second supporting layer and a bonding layer, the bonding layer is arranged between the first supporting layer and the second supporting layer, a groove is formed in a bending area of the supporting piece, the groove penetrates through the second supporting layer and the bonding layer in the depth direction, and the side, away from the bonding layer, of the first supporting layer is used for being attached to and supporting the flexible display screen. According to the supporting piece provided by the embodiment of the invention, the supporting layers on the two sides are bonded through the bonding layer, and the groove is formed in the non-bonding side of the flexible display screen, so that on one hand, the groove is used for reducing the strength of the supporting layers and facilitating bending, and on the other hand, the groove can be used for forming the avoiding space and facilitating stacking of other devices of the electronic equipment; the supporting part is a complete plane on the supporting side of the flexible display screen, so that the supporting strength of the flexible display screen can be improved, the film printing of a folding area is reduced, the reliability of the flexible display screen is improved, and the use experience of the electronic equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flexible screen electronic device structures, and in particular to a display screen assembly, a support member, and an electronic device. Background Art

[0002] In the current intelligent information age, users are using mobile terminals more and more frequently, and the usage scenarios are becoming more and more diverse. At present, the screen size of most portable intelligent mobile terminals is less than 7 inches. Compared with tablets and laptops, the screen display area is limited, and the user operation experience is restricted. The emergence of flexible screens solves such problems very well. By bending or curling the flexible screen, the large screen can be stored in a small body, which is convenient for users to carry. At the same time, the small screen is used as a normal mobile phone. When it is switched to a large screen, news reading and social chatting can be realized at the same time. At the same time, it can also improve the user's game operation experience and greatly enrich the user's usage scenarios.

[0003] With the rapid development of foldable phones, the shortcomings of foldable phones have also emerged, such as heavy weight, thick whole machine, creases and film prints in the folding area of ​​the screen, weak strength in the folding area of ​​the screen, etc. At present, the support plate of the folding screen is mainly made of stainless steel plate, and it is necessary to punch patterned matrix holes in the bending area to reduce the regional strength of the material for the bending of the screen; however, after punching, the anti-extrusion ability of the screen in the corresponding area is reduced. At present, the anti-extrusion ability of the folding screen is much lower than that of the conventional mobile phone screen. In addition, due to the punching of holes in the support plate, the support plane is uneven, so mold prints are easily appearing on the display screen, affecting the display effect and reducing the life of the display screen. Summary of the invention

[0004] According to a first aspect of an embodiment of the present application, there is provided a support member for a flexible display screen, the support member comprising a first support layer, a second support layer and an adhesive layer, the adhesive layer being arranged between the first support layer and the second support layer, a groove being arranged in a bending area of ​​the support member, the groove penetrating the second support layer and the adhesive layer in a depth direction, and a side of the first support layer facing away from the adhesive layer being used for bonding and supporting the flexible display screen.

[0005] In a second aspect, an embodiment of the present application provides a display screen assembly, which includes a flexible display screen and the support member described in the above embodiment, wherein the side of the first supporting layer of the support member facing away from the adhesive layer is bonded and supported to the non-light-emitting side of the flexible display screen.

[0006] In a third aspect, an embodiment of the present application provides an electronic device, comprising a shell and a display screen assembly as described in the above embodiment; the shell comprises a first shell, a second shell and a hinge assembly; the first shell and the second shell are respectively connected to the hinge assembly, and the first shell and the second shell can rotate with the hinge assembly; the display screen assembly is respectively connected to the first shell and the second shell and spans the hinge assembly, and the display screen assembly can be folded or flattened with the relative rotation of the first shell and the second shell.

[0007] The support member for the flexible display screen provided in the embodiment of the present application utilizes an adhesive layer to bond the support layers on both sides, and a groove is provided on the non-bonding side of the flexible display screen. The groove serves to reduce the strength of the support layer for facilitating bending, and on the other hand, it can be used to form an escape space for facilitating the stacking of other components of the electronic device. Since the support member is a complete plane on the supporting side of the flexible display screen, the supporting strength of the flexible display screen can be increased, the film print in the folding area can be reduced, the reliability of the flexible display screen can be improved, and the user experience of the electronic device can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 It is a schematic structural diagram of an embodiment of a foldable electronic device of the present application in an unfolded state;

[0010] Figure 2 yes Figure 1 A schematic diagram of the structure of the electronic device in the folded state in the embodiment;

[0011] Figure 3 yes Figure 1 A schematic cross-sectional view of the structure of the electronic device at AA in the embodiment;

[0012] Figure 4 It is a schematic diagram of a structural composition block diagram of an embodiment of an electronic device of the present application;

[0013] Figure 5 It is a structural schematic diagram of an embodiment of a display screen assembly of the present application;

[0014] Figure 6 It is a schematic diagram of the overall structure of an embodiment of a support member of the present application;

[0015] Figure 7 yes Figure 6A schematic cross-sectional view of the structure of the support member at position BB in the embodiment;

[0016] Figure 8 This is a schematic diagram of the structure of the supporting member and the flexible display screen in the embodiment of the present application;

[0017] Fig. 9 is a schematic cross-sectional view of the structure of another embodiment of the support member of the present application;

[0018] Fig.10 is a schematic cross-sectional view of the structure of another embodiment of the support member of the present application;

[0019] Fig.11 is a schematic cross-sectional view of the structure of yet another embodiment of the support member of the present application;

[0020] Fig.12 It is a schematic diagram of a folded state of a flexible display screen;

[0021] Fig.13 This is a schematic diagram of another flexible display screen in the folded state. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0023] The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "including" and "having" in the embodiments of the present application and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or components inherent to these processes, methods, products, or devices.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] As used herein, "electronic devices" (or simply "terminals") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0026] The present application provides a foldable electronic device. Figures 1 to 3 , Figure 1 It is a schematic structural diagram of an embodiment of a foldable electronic device of the present application in an unfolded state; Figure 2 yes Figure 1 A schematic diagram of the structure of the electronic device in the folded state in the embodiment; Figure 3 yes Figure 1 Schematic diagram of the structure of the electronic device at AA in the embodiment; it should be noted that the electronic device in the present application may include electronic devices with foldable flexible display screens such as mobile phones, tablet computers, laptop computers, and wearable devices. The electronic device 10 includes but is not limited to the following structures: a housing 100, a display assembly 200, and a circuit assembly 300.

[0027] For more details, please refer to Figure 2 and Figure 3The housing 100 includes a first housing 110, a second housing 120 and a rotating shaft assembly 130; the first housing 110 and the second housing 120 are respectively connected to the rotating shaft assembly 130, and the first housing 110 and the second housing 120 can rotate with the rotating shaft assembly 130; the detailed structure of the rotating shaft assembly is within the scope of understanding of those skilled in the art and will not be described in detail here. The display assembly 200 is respectively connected to the first housing 110 and the second housing 120 and straddles the rotating shaft assembly 130, and the display assembly 200 can rotate with the relative rotation (along the axis) of the first housing 110 and the second housing 120. Figure 3 in the direction of the double arrow) and fold ( Figure 2 mid state) or flattened ( Figure 1 medium state).

[0028] Optionally, the circuit assembly 300 may include a battery 310 and a control circuit board 320, etc. In addition, the electronic device may also include a camera, a speaker, and various sensors, etc. The detailed features of this part are within the scope of understanding of those skilled in the art and will not be repeated here.

[0029] See also Figure 4 , Figure 4 It is a schematic diagram of the structural composition block diagram of an embodiment of an electronic device of the present application. The electronic device can be a foldable mobile phone, a tablet computer, a laptop computer, a wearable device, etc. The diagram of this embodiment takes a foldable mobile phone as an example. The structure of the electronic device 10 may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (which may be the display screen assembly 200 in the above embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980 (which may be the control circuit board 320 in the above embodiment) and a power supply 990 (which may be the battery 310 in the above embodiment), etc. Among them, the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960 and the wifi module 970 are respectively connected to the processor 980; the power supply 990 is used to provide power to the entire electronic device 10.

[0030] Specifically, the RF circuit 910 is used to receive and send signals; the memory 920 is used to store data instruction information; the input unit 930 is used to input information, which may specifically include a touch panel 931 and other input devices 932 such as operation buttons; the display unit 940 may include a display panel 941, etc.; the sensor 950 includes an infrared sensor, a laser sensor, etc., for detecting user approach signals, distance signals, etc.; the speaker 961 and the microphone (or microphone) 962 are connected to the processor 980 through the audio circuit 960 for receiving and sending sound signals; the wifi module 970 is used to receive and transmit wifi signals, and the processor 980 is used to process data information of the electronic device. For the specific structural features of the electronic device, please refer to the relevant description of the above embodiment, which will not be described in detail here.

[0031] The following is a detailed description of the structure of the display assembly. Figure 5 , Figure 5 2 is a schematic diagram of the structure of an embodiment of a display screen assembly of the present application, wherein the display screen assembly 200 in this embodiment includes a flexible display screen 210 and a support member 220, wherein the support member 220 is connected to the non-light-emitting side of the flexible display screen 210 and is stacked with the flexible display screen 210. The support member 220 is used to support the flexible display screen 210.

[0032] As mentioned in the background technology, the conventional technical solution of punching holes in the support plate has the following disadvantages: First, the cost is high: the stainless steel or titanium alloy pattern is etched and formed, and the forming cost is more than 5 yuan / pcs; the carbon fiber pattern is laser formed, and the forming cost is more than 10 yuan / pcs. Poor extrusion ability: The strength of the folding mobile phone screen is evaluated by fingernail pressing, cone head pressing, and cone head scratching. At present, the industry level of the screen in the inner bend pattern area is about 1.5-2.5kg for fingernail pressing, 1-2kg for cone head pressing, and 0.5-1kg for cone head scratching, and the overall anti-extrusion ability is poor.

[0033] In order to solve the above problems, the present application provides a support structure of a flexible display screen. Figure 6 and Figure 7 , Figure 6 It is a schematic diagram of the overall structure of an embodiment of the support member of the present application. Figure 7 yes Figure 6 The structural cross-sectional diagram of the support member at BB in the embodiment, wherein the support member 220 in this embodiment includes a first support layer 221, a second support layer 222 and an adhesive layer 223, the adhesive layer 223 is arranged between the first support layer 221 and the second support layer 222, and the bending area 2200 ( Figure 6The second support layer 222 and the adhesive layer 223 are provided with a groove 224 in the depth direction, wherein the groove 224 can be used to divide the second support layer 222 and the adhesive layer 223 into two parts in the horizontal direction, and the side of the first support layer 221 away from the adhesive layer 223 is used for bonding and supporting the flexible display screen 210. Figure 8 , Figure 8 It is a structural schematic diagram of the cooperation state between the support member and the flexible display screen in an embodiment of the present application.

[0034] Optionally, the adhesive layer 223 in this embodiment is an adhesive tape with double-sided adhesive function, and the elastic modulus of the adhesive tape is required to be less than 300 kPa at minus 20 degrees Celsius to ensure adhesive reliability and bending life.

[0035] The thickness of the adhesive layer 223 is 0.010-0.030 mm, and specifically may be 0.010 mm, 0.012 mm, 0.015 mm, 0.018 mm, 0.020 mm, 0.025 mm, 0.030 mm, and the like.

[0036] Optionally, see Figure 7 The width T of the groove 224 in this embodiment is 6-15 mm, specifically about 9 mm. The width of the groove 224 can be designed according to the size of the rotating shaft.

[0037] Optionally, the materials of the first support layer 221 and the second support layer 222 in this embodiment can be selected from any one of metal alloys (such as stainless steel plates, aluminum alloy plates, etc.) and carbon fiber composite materials. Fig. 9 and Fig.10 , Fig. 9 is a schematic cross-sectional view of another embodiment of the support member of the present application. Fig.10 : is a schematic cross-sectional view of another embodiment of the support member of the present application, wherein: Fig. 9 The materials of the first supporting layer 221 and the second supporting layer 222 can both be stainless steel plates. Fig.10 The materials of the first supporting layer 221 and the second supporting layer 222 can both be carbon fiber composite materials. Figure 7 The first supporting layer 221 may be a stainless steel plate, and the second supporting layer 222 may be a carbon fiber composite material. In addition, in some other embodiments, the first supporting layer 221 may be a carbon fiber composite material, and the second supporting layer 222 may be a stainless steel plate.

[0038] Optionally, the thickness of the first support layer 221 is 0.01-0.03 mm, specifically 0.01 mm, 0.012 mm, 0.015 mm, 0.018 mm, 0.02 mm, 0.022 mm, 0.025 mm, 0.03 mm, etc. The thickness of the second support layer 222 is 0.1-0.15 mm, specifically 0.10 mm, 0.11 mm, 0.12 mm, 0.125 mm, 0.13 mm, 0.15 mm, etc. It may vary depending on the material selected.

[0039] Optionally, see Fig.11 , Fig.11 This is a schematic cross-sectional view of another embodiment of the support member of the present application. Different from the previous embodiment, there are multiple grooves 224 in this embodiment. The multiple grooves are arranged in parallel and adjacent to each other. The number of grooves 224 can be increased or decreased according to the structure of the rotating shaft, and can be different, such as a water drop shape or a hemispherical shape. Please refer to Fig.12 and Fig.13 , Fig.12 This is a schematic diagram of a folded state of a flexible display screen. Fig.13 is a schematic diagram of another flexible display screen in a folded state, wherein: Fig.12 and Fig.13 The bending areas W1 and W2 can form different bending shapes according to the different structures of the rotating shaft, and the number of the grooves 224 can be designed according to the different shapes mentioned above, which will not be described in detail here.

[0040] The support member 220 in the embodiment of the present application can be formed by first forming the second support layer 222 separately, then bonding the folding tape (adhesive layer 223) and the second support layer 222 together, then laser forming the middle groove 224 area, and then composite forming with the first support layer 221. The support member is made of stainless steel + carbon fiber (with Figure 7 The composite solution (taking the solution in the example) can simultaneously reduce weight and improve the screen's ability to resist extrusion.

[0041] The supporting member in the embodiment of the present application has the following characteristics:

[0042] 1. Cost reduction: It saves the cost of pattern molding, and the cost of each item can be reduced by more than 5 yuan / pcs;

[0043] 2. The squeezing capacity of the inner curved area of ​​the screen is improved: the pressing force of the cone head is increased by ≥4.3 times, the pressing force of the fingernail is increased by ≥3 times, and the scratching force of the cone head is increased by ≥1.7 times;

[0044] 3. The film print on the inner curved area of ​​the screen is reduced;

[0045] 4. The space released by the groove in the inner bending area can be used for other parts of the whole machine, which improves the strength of other parts of the whole machine and improves the reliability of the whole machine.

[0046] The support member for the flexible display screen provided in the embodiment of the present application utilizes an adhesive layer to bond the support layers on both sides, and a groove is provided on the non-bonding side of the flexible display screen. The groove serves to reduce the strength of the support layer for facilitating bending, and on the other hand, it can be used to form an escape space for facilitating the stacking of other components of the electronic device. Since the support member is a complete plane on the supporting side of the flexible display screen, the supporting strength of the flexible display screen can be increased, the film print in the folding area can be reduced, the reliability of the flexible display screen can be improved, and the user experience of the electronic device can be enhanced.

[0047] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A support member for a flexible display screen, characterized in that: The support member includes a first support layer, a second support layer and an adhesive layer, the adhesive layer is arranged between the first support layer and the second support layer, the bending area of ​​the support member is provided with a groove, the groove penetrates the second support layer and the adhesive layer in the depth direction, and the side of the first support layer away from the adhesive layer is used for bonding and supporting the flexible display screen.

2. The support member according to claim 1, characterized in that The adhesive layer is an adhesive tape with double-sided adhesive function, and the elastic modulus of the adhesive layer is less than 300 kPa at minus 20 degrees Celsius.

3. The support member according to claim 2, characterized in that: The thickness of the adhesive layer is 0.010-0.030 mm.

4. The support member according to claim 1, characterized in that The width of the groove is 6-15 mm.

5. The support member according to claim 1, characterized in that The materials of the first supporting layer and the second supporting layer can be selected from any one of metal alloys and carbon fiber composite materials.

6. The support member according to claim 1, characterized in that The thickness of the first supporting layer is 0.01-0.03 mm.

7. The support member according to claim 6, characterized in that The thickness of the second supporting layer is 0.1-0.15 mm.

8. The support member according to claim 1, characterized in that There are a plurality of grooves, and the plurality of grooves are arranged in parallel and adjacent to each other.

9. A display screen assembly, characterized in that: The display screen assembly comprises a flexible display screen and the support member according to any one of claims 1 to 8, wherein a side of the first support layer of the support member facing away from the adhesive layer is bonded and supported to a non-light emitting side of the flexible display screen.

10. An electronic device, characterized in that: The electronic device includes a shell and a display screen assembly as described in claim 9; the shell includes a first shell, a second shell and a hinge assembly; the first shell and the second shell are respectively connected to the hinge assembly, and the first shell and the second shell can rotate with the hinge assembly; the display screen assembly is respectively connected to the first shell and the second shell and spans the hinge assembly, and the display screen assembly can be folded or flattened with the relative rotation of the first shell and the second shell.

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