Display module and terminal device

Abstract

This application proposes a display module and a terminal device. The display module includes: a flexible screen, which includes a main body and a connecting part. The connecting part is disposed on the main body and extends in a direction away from the edge of the main body after being bent; and a flexible circuit board, which is disposed on the connecting part. One end of the flexible circuit board is bonded to the connecting part in a bonding area, and the other end of the flexible circuit board is bent and extends in a direction toward the edge of the main body. The advantages of this application compared with the prior art are: the flexible circuit board greatly reduces the space occupied by the terminal device after bending, allowing the battery, speaker and other devices to increase their thickness space, thereby effectively improving the overall performance of the terminal device.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display module and terminal device. Background Technology

[0002] With the development of full-screen terminal devices, flexible screens are being used more and more widely. Flexible screens need to be connected to the motherboard of the terminal device through flexible circuit boards. However, since flexible circuit boards are usually laid flat inside the terminal device, the planar space inside the terminal device is occupied by a large amount. In the case of limited internal space in mobile phones, this will affect the performance design of other components inside the terminal device. Summary of the Invention

[0003] This application aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the purpose of this application is to propose a display module and terminal device.

[0005] To achieve the above objectives, the first aspect of this application provides a display module comprising: a flexible screen, the flexible screen including a main body and a connecting part, the connecting part being disposed on the main body and extending in a direction away from the edge of the main body after being bent; and a flexible circuit board, the flexible circuit board being disposed on the connecting part, one end of the flexible circuit board being bonded to the connecting part in a bonding area, and the other end of the flexible circuit board being bent and extending in a direction toward the edge of the main body.

[0006] Optionally, the flexible circuit board includes: a first portion, one end of which is bonded to the connecting portion in a bonding area, and the other end of which extends in a direction away from the edge of the main body portion; a bending portion, which is U-shaped and forms a first end and a second end, the first end being connected to the end of the first portion away from the edge of the main body portion; and a second portion, one end of which is connected to the second end, and the other end of which extends in a direction toward the edge of the main body portion.

[0007] Optionally, the flexible screen further includes a first electronic device disposed on the surface of the connecting portion facing the second portion.

[0008] Optionally, the distance between the end of the first part away from the binding area and the binding area is greater than or equal to 1 mm, and the display module further includes: a third support member, the third support member being disposed between the main body and the first part, and the third support member being connected to the main body and the first part respectively.

[0009] Optionally, the bending radius of the bent portion is not greater than 0.2 mm, and the second portion is provided with an opening, the orthographic projection of the opening on the connecting portion covering the orthographic projection of the first electronic device on the connecting portion.

[0010] Optionally, the bending radius of the bent portion is greater than 0.2 mm.

[0011] Optionally, the display module further includes: a first support member disposed between the first part and the second part, and the first support member being connected to both the first part and the second part; a second support member disposed between the connecting part and the second part, and the second support member being connected to both the connecting part and the second part; and the first electronic device being located between the first support member and the second support member.

[0012] Optionally, the bending radius of the bent portion is not less than 0.5 mm.

[0013] Optionally, the flexible circuit board further includes: a second electronic device, the second electronic device being fixedly disposed on the surface of the second part facing the connecting portion, and the end of the first support member away from the first part and the end of the second support member away from the connecting portion being fixedly connected to the second part and / or the second electronic device.

[0014] Optionally, the display module further includes a fourth support member, which is disposed between the connecting portion and the main body portion, and is connected to both the connecting portion and the main body portion.

[0015] A terminal device according to a second aspect of this application includes: a display module as described in the first aspect of this application, wherein the main body includes an encapsulation area and a battery area, and the flexible circuit board is disposed in the encapsulation area of ​​the main body; and a battery disposed in the battery area of ​​the main body, wherein the orthographic projections of the battery and the flexible circuit board on the main body do not overlap.

[0016] Optionally, the terminal device further includes a fifth support member, which is disposed between the battery and the main body and is connected to both the battery and the main body.

[0017] After adopting the above technical solution, the advantages of this application compared with the prior art are: the flexible circuit board greatly reduces the space occupied by the terminal device after bending, allowing the battery, speaker and other devices to increase the thickness space, thereby effectively improving the overall performance of the terminal device.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0020] Figure 1 This is a structural schematic diagram of a related embodiment of this application;

[0021] Figure 2 This is a structural schematic diagram of the first embodiment of the module bending portion shown in this application;

[0022] Figure 3 This is a structural schematic diagram of the second embodiment of the module bending portion shown in this application;

[0023] Figure 4 This is a structural schematic diagram of the third embodiment of the module bending portion shown in this application;

[0024] Figure 5 This is a schematic diagram of the structure of a terminal device according to an embodiment of this application;

[0025] As shown in the figure: 1. Main body, 2. Connecting part, 3. Flexible circuit board, 4. First part, 5. Bending part, 6. Second part, 7. First electronic component, 8. Second electronic component, 9. First support member, 10. Second support member, 11. Third support member, 12. Fourth support member, 13. Opening, 14. Battery, 15. Fifth support member. Detailed Implementation

[0026] The embodiments of this application are described in detail below, examples of which 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 this application, and should not be construed as limiting this application. Rather, the embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0027] like Figure 1As shown in the terminal device of the relevant embodiments of this application, the terminal device includes a flexible screen, a flexible printed circuit board (FPC) 3, and a battery 14. The flexible screen includes a main body 1 and a connecting part 2. The connecting part 2 is disposed on the main body 1. After being bent, the connecting part 2 extends in a direction away from the edge of the main body 1. A fourth support member 12 is connected between the connecting part 2 and the main body 1. A first electronic device 7 is disposed on the connecting part 2. The flexible printed circuit board 3 is disposed on the connecting part 2. One end of the flexible printed circuit board 3 is bound to the connecting part 2 in a bonding area. The other end of the flexible printed circuit board 3 extends in a direction away from the edge of the main body 1. A third support member 11 is connected between the flexible printed circuit board 3 and the main body 1. The battery 14 is connected to the main body 1 through a fifth support member 15. The fifth support member 15 is provided with a groove for accommodating the flexible printed circuit board 3. The orthographic projections of the battery 14 and the flexible printed circuit board 3 on the main body 1 overlap.

[0028] The flat structure of the flexible circuit board 3 occupies a significant amount of planar space within the terminal device. The display module is roughly divided into a battery area and a packaging area, such as... Figure 1 As shown, the battery area needs to be formed on top of the encapsulation area. Since the encapsulation area and the battery area are distributed in the thickness direction, the encapsulation area will affect the space in the thickness direction of the battery area. As a result, the battery 14, the speaker and other devices can only be set on the side of the flexible circuit board 3 away from the main body 1. Furthermore, since the flexible circuit board 3 has a certain thickness, it is inconvenient to increase the thickness of the battery 14, the speaker and other devices, which ultimately affects the performance of the devices.

[0029] To solve the above technical problems, such as Figure 2 , Figure 3 , Figure 4 As shown, this application embodiment proposes a display module, including a flexible screen and a flexible circuit board 3. The flexible screen adopts COP (Chip On PI) packaging, that is, a part of the flexible screen is directly bent backward for packaging.

[0030] The flexible screen includes a main body 1 and a connecting part 2. The connecting part 2 is disposed on the main body 1 and extends in a direction away from the edge of the main body 1 after being bent. A flexible circuit board 3 is disposed on the connecting part 2. One end of the flexible circuit board 3 is bonded to the connecting part 2 in a bonding area, and the other end of the flexible circuit board 3 is bent and extends in a direction toward the edge of the main body 1.

[0031] It is understandable that the flexible circuit board 3 is bent after being bound to the flexible screen through the connecting part 2, so that the flexible circuit board 3, the connecting part 2, and the main body 1 are stacked, which greatly reduces the space occupied by the flexible circuit board 3 on the terminal device, and allows the battery 14, speaker and other components to increase in thickness, thereby effectively improving the overall performance of the terminal device.

[0032] like Figure 2 , Figure 3 , Figure 4 As shown, in some embodiments, the flexible circuit board 3 includes a first part 4, a bent part 5, and a second part 6. One end of the first part 4 is bonded to the connecting part 2 in the bonding area, and the other end of the first part 4 extends in a direction away from the edge of the main body 1. The bent part 5 is bent in a U-shape to form a first end and a second end. The first end is connected to the end of the first part 4 away from the edge of the main body 1. One end of the second part 6 is connected to the second end, and the other end of the second part 6 extends in a direction toward the edge of the main body 1.

[0033] It is understandable that by connecting the first part 4 to the connecting part 2, bending the bending part 5 in a U-shape, and extending the second part 6, the bending of the flexible circuit board 3 is achieved while ensuring the bonding connection between the flexible circuit board 3 and the flexible screen.

[0034] like Figure 2 , Figure 3 , Figure 4 As shown, in some embodiments, a first copper drain area is provided on the first part 4 and a second copper drain area is provided on the connecting part 2 within the bonding area. The first copper drain area and the second copper drain area are connected by die-flex PCB bonding technology, thereby completing the bonding between the first part 4 and the connecting part 2.

[0035] like Figure 2 , Figure 3 , Figure 4 As shown, in some embodiments, the first part 4 is parallel to the second part 6.

[0036] like Figure 2 , Figure 3 , Figure 4 As shown, in some embodiments, the first electronic device 7 is disposed on the surface of the connecting portion 2 facing the second portion 6.

[0037] It is understandable that the first electronic device 7 is disposed on the connecting part 2 in order to protect the first electronic device 7.

[0038] Among them, the first electronic device 7 can be a driver chip.

[0039] like Figure 2 , Figure 3 , Figure 4As shown, in some embodiments, after the first part 4 of the flexible circuit board 3 is connected to the connecting part 2, it is bent and extended to form the bent part 5 and the second part 6. In order to ensure the stable connection between the first part 4 and the connecting part 2 during bending, the distance between the end of the first part 4 away from the binding area and the binding area is greater than or equal to 1mm. The display module also includes a third support member 11, which is disposed between the main body 1 and the first part 4, and the third support member 11 is connected to the main body 1 and the first part 4 respectively.

[0040] It is understandable that the setting of the distance between the end of the first part 4 away from the binding area and the binding area is greater than or equal to 1mm, so that the first part 4 has sufficient width, thereby avoiding the connection between the first part 4 and the connecting part 2 when the flexible circuit board 3 is bent, ensuring the stable connection between the flexible circuit board 3 and the flexible screen. At the same time, the setting of the third support member 11 provides effective support between the first part 4 and the flexible screen, further improving the connection stability between the first part 4 and the connecting part 2.

[0041] like Figure 2 , Figure 3 , Figure 4 As shown, in some embodiments, the display module further includes a fourth support member 12, which is disposed between the connecting part 2 and the main body part 1, and is connected to both the connecting part 2 and the main body part 1.

[0042] Understandably, the fourth support member 12 ensures the stable installation of components such as the connecting part 2 and the flexible circuit board 3 within the terminal device.

[0043] Since the first electronic device 7 is disposed on the surface of the connecting part 2 facing the second part 6, the first electronic device 7 is easily affected by the bending radius of the bending part 5.

[0044] As a first embodiment of the bent portion 5 of the display module in this application, such as Figure 2 As shown, the bending radius of the bent portion 5 is no greater than 0.2 mm, and the second portion 6 is provided with an opening 13. The orthographic projection of the opening 13 on the connecting portion 2 covers the orthographic projection of the first electronic device 7 on the connecting portion 2.

[0045] It is understandable that the bending radius of the bending portion 5 is no greater than 0.2mm, so that the flexible circuit board 3 occupies less space in the terminal device, thereby facilitating the structural design within the terminal device. At the same time, since the radius of the bending portion 5 is too small, even if a support is provided, the first electronic device 7 cannot be prevented from being squeezed. Therefore, the opening 13 allows the first electronic device 7 to pass through the opening 13 when the second portion 6 and the connecting portion 2 are close to each other, thereby preventing the first electronic device 7 from being squeezed and improving the safety of the first electronic device 7.

[0046] In this embodiment, the size of the opening 13 is larger than that of the first electronic device 7, so as to ensure that when the second part 6 and the connecting part 2 are close to each other, the second part 6 can avoid the first electronic device 7 even if the tilt angle changes.

[0047] In this embodiment, when the bending radius of the bent portion 5 is not greater than 0.2mm, the internal wiring of the flexible circuit board 3 can use rolled copper, or the bent portion 5 of the flexible circuit board 3 can use grid copper to ensure stable communication after the flexible circuit board 3 is bent.

[0048] As a second embodiment of the bent portion 5 of the display module in this application, such as Figure 3 As shown, the bending radius of the bent portion 5 is greater than 0.2 mm.

[0049] The display module also includes a first support member 9 and a second support member 10. The first support member 9 is disposed between the first part 4 and the second part 6 and is connected to the first part 4 and the second part 6 respectively. The second support member 10 is disposed between the connecting part 2 and the second part 6 and is connected to the connecting part 2 and the second part 6 respectively. The first electronic device 7 is located between the first support member 9 and the second support member 10.

[0050] It is understandable that the bending radius of the bent portion 5 is greater than 0.2mm, so that there is a certain distance between the second portion 6 and the connecting portion 2, thereby preventing the second portion 6 from squeezing the first electronic device 7 and improving the safety of the first electronic device 7. At the same time, through the setting of the first support member 9 and the second support member 10, the second portion 6 and the connecting portion 2 are effectively supported, further preventing the second portion 6 from squeezing the first electronic device 7 and improving the safety of the first electronic device 7.

[0051] As a third embodiment of the bending portion 5 of the display module in this application, such as Figure 4 As shown, the bending radius of the bent portion 5 is not less than 0.5mm.

[0052] The flexible circuit board 3 also includes a second electronic device 8, which is fixedly disposed on the surface of the second part 6 facing the connecting part 2. The end of the first support member 9 away from the first part 4 and the end of the second support member 10 away from the connecting part 2 are both fixedly connected to the second part 6 and / or the second electronic device 8.

[0053] Understandably, the second electronic device 8 is positioned between the connecting part 2 and the second part 6, further reducing the space occupied by the flexible circuit board 3 within the terminal device. Moreover, the bending radius of the bending part 5 is not less than 0.5mm, resulting in a larger distance between the second part 6 and the connecting part 2. This avoids squeezing between the first electronic device 7 and the second electronic device 8. At the same time, the support of the first support member 9 and the second support member 10 further prevents squeezing between the first electronic device 7 and the second electronic device 8.

[0054] In this embodiment, the end of the first support member 9 away from the first part 4 and the end of the second support member 10 away from the connecting part 2 are simultaneously fixedly connected to the second part 6 and the second electronic device 8.

[0055] In some embodiments, the end of the first support member 9 away from the first part 4 and the end of the second support member 10 away from the connecting part 2 are fixedly connected to the second part 6 after avoiding the second electronic device 8.

[0056] In some embodiments, the end of the first support member 9 away from the first portion 4 and the end of the second support member 10 away from the connecting portion 2 are directly fixedly connected to the second electronic device 8.

[0057] In this embodiment, the second electronic device 8 may be a touch chip, resistor, capacitor, etc., and the second electronic device 8 is disposed on the second part 6 by surface mount technology.

[0058] In summary, in the display module provided in this application embodiment, the flexible circuit board 3 and the flexible screen are bound together by the connecting part 2 and then bent, so that the flexible circuit board 3, the connecting part 2, and the main body 1 are stacked, so that the width occupied by the encapsulation area is as small as possible.

[0059] like Figure 5 As shown in the embodiment of this application, a terminal device is also proposed, including the above-mentioned display module and battery 14. The main body 1 includes an encapsulation area and a battery area. The flexible circuit board 3 is disposed in the encapsulation area of ​​the main body 1, and the battery 14 is disposed in the battery area of ​​the main body 1. The orthographic projections of the battery 14 and the flexible circuit board 3 on the main body 1 do not overlap.

[0060] Understandably, the bending of the flexible circuit board 3 greatly reduces the space occupied by the terminal device, allowing the battery 14 to increase in thickness, thereby facilitating the increase in the capacity of the battery 14 and thus improving the overall performance of the terminal device.

[0061] In some embodiments, the terminal device further includes a fifth support member 15, which is disposed between the battery 14 and the main body 1, and is connected to both the battery 14 and the main body 1.

[0062] Understandably, the fifth support member 15 provides effective support between the battery 14 and the main body 1, ensuring a stable connection between the battery 14 and the flexible screen.

[0063] In some embodiments, the first support member 9, the second support member 10, the third support member 11, the fourth support member 12, and the fifth support member 15 are all made of rigid materials, such as polycarbonate, thermoplastic polyolefin, etc., and the first support member 9, the second support member 10, the third support member 11, the fourth support member 12, and the fifth support member 15 are all connected to the corresponding components by adhesive bonding.

[0064] In summary, the terminal device provided in this application embodiment is divided into a packaging area and a battery area, which are arranged side by side. Within the packaging area, the flexible circuit board 3 and the flexible screen are bound together by the connecting part 2 and then bent, so that the flexible circuit board 3, the connecting part 2, and the main body 1 are stacked, minimizing the width occupied by the packaging area. Since the packaging area no longer occupies the thickness space of the battery area, the footprint of the flexible circuit board 3 on the terminal device's planar space is greatly reduced, allowing the battery 14, speakers, and other components to have increased thickness space, thereby effectively improving the overall performance of the terminal device.

[0065] It should be noted that in the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0066] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this application pertain.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A display module, characterized in that, include: A flexible screen, comprising a main body and a connecting part, wherein the connecting part is disposed on the main body and extends in a direction away from the edge of the main body after being bent; A flexible circuit board is disposed on the connecting portion, one end of the flexible circuit board is bound to the connecting portion in the binding area, and the other end of the flexible circuit board extends toward the edge of the main body portion after being bent. The flexible circuit board includes: a first part, a bent part, and a second part. One end of the first part is bonded to the connecting part in a bonding area, and the other end of the first part extends in a direction away from the edge of the main body. The bent part is U-shaped and forms a first end and a second end. The first end is connected to the end of the first part away from the edge of the main body. One end of the second part is connected to the second end, and the other end of the second part extends in a direction toward the edge of the main body. The flexible screen further includes: a first electronic device disposed on the surface of the connecting portion facing the second portion; The distance between the end of the first part away from the binding area and the binding area is greater than or equal to 1mm. The display module further includes: a third support member, which is disposed between the main body and the first part, and is connected to both the main body and the first part. The display module further includes: a fourth support member, which is disposed between the connecting part and the main body part, and is connected to both the connecting part and the main body part. The bending radius of the bent portion is greater than 0.2mm. The display module further includes: a first support member and a second support member. The first support member is disposed between the first portion and the second portion and is connected to both the first portion and the second portion. The second support member is disposed between the connecting portion and the second portion and is connected to both the connecting portion and the second portion. The first electronic device is located between the first support member and the second support member. The bending radius of the bent portion is not less than 0.5 mm, and the flexible circuit board further includes: a second electronic device, which is fixedly disposed on the surface of the second portion facing the connecting portion.

2. The display module according to claim 1, characterized in that, The end of the first support member away from the first part and the end of the second support member away from the connecting part are both fixedly connected to the second part and / or the second electronic device.

3. A terminal device, characterized in that, include: The display module as described in any one of claims 1-2, wherein the main body includes an encapsulation area and a battery area, and the flexible circuit board is disposed in the encapsulation area of ​​the main body; The battery is disposed in the battery area of ​​the main body, and the orthographic projections of the battery and the flexible circuit board on the main body do not overlap.

4. The terminal device according to claim 3, characterized in that, The terminal device also includes: A fifth support member is disposed between the battery and the main body, and the fifth support member is connected to both the battery and the main body.

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