Terminal device

Abstract

The invention relates to terminal equipment. The terminal equipment comprises a display component; a flexible circuit board; the flexible circuit board is in contact with one face, away from the display face, of the display assembly and comprises a plurality of electrical interfaces, and a first electrical interface of the electrical interfaces is used for being electrically connected with the display assembly; wherein the flexible circuit board is used for supporting the display assembly. Through the arrangement of the terminal device, the space occupied by the screen back auxiliary material and the block-up block can be reduced, the proportion of the space occupied by the battery is improved, and the lightness and thinness of the terminal device are enhanced; moreover, because the flexible circuit board is flexible and is usually a multilayer circuit board, mechanical buffering force can be provided for the display assembly and mechanical protection can be provided for the display assembly while space occupation of the battery and lightness and thinness of the terminal equipment are facilitated, in addition, the number of switching FPCs can be reduced due to the arrangement of a plurality of electrical interfaces of the flexible circuit board, and the cost is reduced. The lightness and thinness of the terminal equipment and the stability of signal transmission are improved.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technologies, and in particular, to a terminal device. Background Art

[0002] With the development of mobile phones with flexible organic light-emitting diodes (OLED) screens, this new form is increasingly favored in the industry, and the use of flexible screens is becoming more and more widespread. However, the stacking structure of conventional flexible screen modules is relatively fixed. The auxiliary materials on the back of the screen module usually need to protect the flexible screen with strength, and an important point restricting the thinness and lightness of the whole machine is the design scheme of the flexible printed circuit (FPC) of the screen module. Therefore, how to improve the space utilization rate of the whole machine and make the whole machine thinner and lighter has become an urgent problem to be solved at present. Summary of the Invention

[0003] The present disclosure provides a terminal device.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided a terminal device, including:

[0005] A display component;

[0006] A flexible circuit board, which is in contact with a surface of the display component facing away from the display surface. The flexible circuit board includes a plurality of electrical interfaces, and a first electrical interface of the plurality of electrical interfaces is used for electrically connecting the display component; wherein, the flexible circuit board is used to support the display component.

[0007] In some embodiments, the display component covers the flexible circuit board, and the contact area between the flexible circuit board and the surface of the display component facing away from the display surface is greater than a preset area threshold.

[0008] In some embodiments, the terminal device further includes a daughter board, and a second electrical interface of the plurality of electrical interfaces of the flexible circuit board is used for electrically connecting the daughter board.

[0009] In some embodiments, the terminal device further includes a main board, and a third electrical interface of the plurality of electrical interfaces of the flexible circuit board is used for electrically connecting the main board.

[0010] In some embodiments, the terminal device further includes: a cover plate, a middle frame, and a rear cover. The cover plate covers the display surface of the display component. The middle frame is located between the cover plate and the accommodation area formed by the rear cover and divides the accommodation area into different areas; the flexible circuit board and the display component are located in a first area between the cover plate and the middle frame.

[0011] In some embodiments, the terminal device further includes a display driving component, which is located on a side of the flexible circuit board away from the cover plate in the first region and is electrically connected to the display component.

[0012] In some embodiments, when the terminal device includes a sub-board, the sub-board is located in a second area between the middle frame and the back cover.

[0013] In some embodiments, the terminal device also includes a battery, which is located in a third area between the middle frame and the back cover, and the second area and the third area are areas distributed in a direction perpendicular to the relative direction of the cover plate and the back cover.

[0014] In some embodiments, the flexible circuit board includes a plurality of routing layers, the display component includes a touch layer and a display layer, and the touch circuit of the touch layer and the display circuit of the display layer are located in different routing layers of the flexible circuit board.

[0015] In some embodiments, the display assembly includes a flexible organic light emitting diode screen.

[0016] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0017] In an embodiment of the present disclosure, the flexible circuit board is in contact with a side of the display component away from the display surface to support the display component, and the flexible circuit board is used to replace the auxiliary material on the back of the screen. The flexible circuit board also includes multiple electrical interfaces, and the first electrical interface of the multiple electrical interfaces is used to electrically connect the display component, that is, the flexible circuit board is connected to the display component without the aid of a spacer block. Through this arrangement, the space occupied by the auxiliary material and the spacer block on the back of the screen can be reduced, the proportion of the space that can be occupied by the battery can be increased, and the lightness and thinness of the terminal device can be enhanced; and, because the flexible circuit board is flexible and is usually a multi-layer circuit board, it is beneficial to the battery space and the lightness and thinness of the terminal device while also providing mechanical buffering force for the display component and providing mechanical protection for the display component. In addition, the flexible circuit board is provided with multiple electrical interfaces, and can also be directly connected to other components in the terminal device without the aid of a transfer FPC, which can reduce the number of transfer FPCs to improve the lightness and thinness of the terminal device and the stability of signal transmission.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0020] Figure 1 It is a schematic diagram of the internal structure of a terminal device in the related art.

[0021] Figure 2 This is a schematic diagram of the internal structure of a terminal device in an embodiment of the present disclosure Figure 1 .

[0022] Figure 3 It is a schematic diagram of the internal structure of a terminal device in an embodiment

[0023] Figure 4 This is a schematic diagram of the internal structure of a terminal device in an embodiment of the present disclosure Figure 2 .

[0024] The description of the reference numerals is as follows:

[0025] 1, flexible circuit board; 2, display component; 3, daughter board; 4, cover plate; 5, middle frame, where the areas marked with slashes are all middle frames; 6, rear cover; 7, display driving component; 8, battery; 21, flexible OLED screen; 11, bonding area on the flexible circuit board; 31, bonding area on the flexible OLED screen; 41, connection area; 101, first area between the cover plate and the middle frame; 102, second area between the middle frame and the rear cover; 103, third area between the middle frame and the rear cover. Detailed Description of the Embodiment

[0026] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0027] There is an internal structure of a terminal device in the related art, Figure 1 It is a schematic diagram of the internal structure of a terminal device in the related art, such as Figure 1As shown, the flexible screen is covered with auxiliary materials on the back of the screen, and the auxiliary materials on the back of the screen are used to support the flexible screen to improve the mechanical capabilities of the screen, such as impact resistance and drop resistance. Among them, the auxiliary materials on the back of the screen are usually a laminated structure composed of copper film, foam, glue and other materials, and the thickness is usually 0.24 mm; the multi-layer FPC is located in the relative direction of the mobile phone sub-board and the battery, and the screen is electrically connected to the multi-layer FPC through a pad block. Among them, since the pad block connects the screen and the multi-layer FPC, the material of the pad block is usually a glue material such as rubber and silicone; and since the touch chip (integrated circuit, IC) circuit and display IC circuit of the flexible screen module must be routed in the multi-layer FPC, and the touch circuit and display circuit also need to be routed in a layered manner inside the FPC to avoid mutual interference, the multi-layer FPC is thicker; in addition, the multi-layer FPC and the mobile phone sub-board need to be connected to the main board through a transfer FPC.

[0028] In the above solution, since the multi-layer FPC is located in the relative direction of the mobile phone sub-board and the battery, if the multi-layer FPC is too large, it will occupy the battery space, and the auxiliary material structure on the back of the screen and the pads required for the connection between the screen and the multi-layer FPC will also occupy the internal space of the terminal device. In addition, the multi-layer FPC and the mobile phone sub-board need to be connected to the main board through an adapter FPC, which adds FPC and connectors, which is more expensive, and the stability of signal transmission will be affected by the adapter.

[0029] In this regard, an embodiment of the present disclosure provides a terminal device, Figure 2 This is an example of the internal structure of a terminal device in the embodiment of the present disclosure. Figure 1 ,like Figure 2 As shown, the terminal device includes:

[0030] Display component 2;

[0031] A flexible circuit board 1 contacts a side of the display component 2 facing away from the display surface, and the flexible circuit board 1 includes a plurality of electrical interfaces, a first electrical interface of the plurality of electrical interfaces is used to electrically connect the display component 2; wherein the flexible circuit board 1 is used to support the display component 2.

[0032] In the embodiments of the present disclosure, the terminal device includes a user equipment (UE) with a display function, a mobile device, a user terminal, a mobile phone, a tablet computer, a personal digital assistant (PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, etc.

[0033] In the embodiments of the present disclosure, the flexible circuit board 1 is in contact with the side of the display component 2 facing away from the display surface. The flexible circuit board 1 is used to support the display component 2. Among them, the flexible circuit board 1 is a printed circuit made of polyester film (Polyethylene terephthalate, PET) or polyimide (Polyimide, PI) as the substrate, which has high reliability and excellent flexibility. By embedding a circuit design on a bendable and thin plastic sheet, a large number of precision components can be stacked and embedded in a narrow and limited space, thereby forming a bendable flexible circuit. The display component 2 includes display screens such as flexible organic light-emitting diodes (OLED) screens, rigid OLED screens, liquid crystal displays (Liquid Crystal Ddisplay, LCD), and light-emitting diode (Light Emitting Diode, LED) screens. In some embodiments, the terminal device includes a cover plate, and the side of the display component 2 facing away from the display surface is the side of the display component 2 away from the cover plate.

[0034] In the embodiments of the present disclosure, the flexible circuit board 1 includes a plurality of electrical interfaces. The first electrical interface of the plurality of electrical interfaces is used for electrically connecting to the display component 2. Among them, the flexible circuit board 1 can be connected to the display component 2 through a wire, or the flexible circuit board 1 includes connection PIN feet, and the display component 2 includes connection PIN feet corresponding to the connection PIN feet of the flexible circuit board 1. The flexible circuit board 1 and the display component 2 are connected through the connection PIN feet.

[0035] In the embodiments of the present disclosure, the flexible circuit board 1 further includes a plurality of electrical interfaces. In some embodiments, the terminal device includes a daughter board 3, and one of the electrical interfaces of the plurality of electrical interfaces of the flexible circuit board 1 is used to connect the flexible circuit board 1 and the daughter board 3; in other embodiments, the terminal device includes a main board, and one of the electrical interfaces of the plurality of electrical interfaces of the flexible circuit board 1 is used to connect the flexible circuit board 1 and the main board, and the main board can control the display of the display component 2 through the flexible circuit board 1; in other embodiments, the terminal device includes a main board and a daughter board 3, and one of the electrical interfaces of the plurality of electrical interfaces of the flexible circuit board 1 is used to connect the flexible circuit board 1 and the daughter board 3, and another electrical interface is used to connect the flexible circuit board 1 and the main board. The main board and the daughter board 3 are connected through the flexible circuit board 1; through this connection method, the daughter board 3 does not need to be connected to the main board through a connector, which can reduce the number of connectors.

[0036] Figure 3 It is a schematic diagram of the internal structure of a terminal device in an embodiment, such as Figure 3As shown, the display component 2 includes a flexible OLED screen 21, which covers the flexible circuit board 1. The flexible OLED screen 21 also includes a bending portion to prevent the frame of the terminal device from becoming larger. The bending portion is a routing area of ​​the flexible OLED screen 21. The bending portion is bent from one side covering the flexible circuit board 1 to the opposite side of the flexible circuit board 1. The flexible circuit board 1 has a bonding area 11 on the side away from the flexible OLED screen 21 covering the flexible circuit board 1. The bending portion of the flexible OLED screen 21 has a bonding area 31 corresponding to the flexible circuit board 1. The bonding area (including the bonding area 11 and the bonding area 31) includes a connecting portion, and a plurality of connecting pins are provided on the connecting portion. The flexible OLED screen 21 and the flexible circuit board 1 are connected through the connecting pins of the bonding area; in another embodiment, the display component 1 includes a hard OLED screen or LCD, and the hard OLED screen or LCD is connected to a chip-on-film (Chip OnFlex, COF) or another flexible circuit board to form a bent portion for realizing the routing of a rigid OLED screen or LCD to reduce the possibility of increasing the frame of the terminal device. The bent portion is bent from one side covering the flexible circuit board 1 to the opposite side of the flexible circuit board 1 (the position relationship is the same as Figure 3 A bending portion in the flexible circuit board 1, a bonding area is provided on a side of the flexible circuit board 1 away from the display component 2 covering the flexible circuit board 1, the COF or another flexible circuit board has a bonding area corresponding to the flexible circuit board 1, the bonding area includes a connecting portion, and a plurality of connecting pins are arranged on the connecting portion. The hard OLED screen or LCD and the flexible circuit board 1 are connected through the connecting pins in the bonding area.

[0037] In the disclosed embodiment, the flexible circuit board 1 is in contact with a side of the display component 2 facing away from the display surface to support the display component 2, and the flexible circuit board 1 is used to replace the auxiliary material on the back of the screen. The flexible circuit board 1 also includes a plurality of electrical interfaces, and the first electrical interface of the plurality of electrical interfaces is used to electrically connect the display component 2, that is, the flexible circuit board 1 is connected to the display component 2 without the aid of a spacer block. Through this arrangement, the space occupied by the auxiliary material and the spacer block on the back of the screen can be reduced, the proportion of the space that can be occupied by the battery can be increased, and the lightness and thinness of the terminal device can be enhanced; and, because the flexible circuit board is flexible and is usually a multi-layer circuit board, it is beneficial to the battery space occupied and the lightness and thinness of the terminal device while also providing mechanical buffering force for the display component and providing mechanical protection for the display component. In addition, the flexible circuit board 1 is provided with a plurality of electrical interfaces, and can also be directly connected to other components in the terminal device without the aid of an adapter FPC, which can reduce the number of adapter FPCs to improve the lightness and thinness of the terminal device and the stability of signal transmission.

[0038] In some embodiments, the display component 2 covers the flexible circuit board 1, and the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface is greater than a preset area threshold.

[0039] In the embodiments of the present disclosure, the display component 2 covers the flexible circuit board 1. As described above, the flexible circuit board 1 is used to support the display component 2, which can enhance the mechanical ability of the display component 2, such as impact resistance, etc. In some embodiments, the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface being greater than the preset area threshold means that the flexible circuit board 1 is completely covered by the display component 2, that is, the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface is the same as the area of the display surface of the display component 2; in other embodiments, the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface being greater than the preset area threshold means that the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface is half or more of the area of the side of the display component 2 facing away from the display surface. For example, the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface is 90% or 95% of the area of the side of the display component 2 facing away from the display surface, so that the flexible circuit board 1 can support the display component 2.

[0040] In the embodiments of the present disclosure, setting the contact area between the flexible circuit board 1 and the side of the display component 2 facing away from the display surface to be greater than the preset area threshold can improve the supporting force of the flexible circuit board 1 on the display component 2, thereby improving the mechanical ability of the display component 2. In addition, it can also reduce the possibility of the flexible circuit board 1 warping during the bending process, so that the display component 2 can display normally.

[0041] Figure 4 This is an example of the internal structure of a terminal device in the embodiments of the present disclosure Figure 2 , for the convenience of subsequent description, the following is based on Figure 4 to make relevant descriptions. Among them, the connection area 41 is the area where the flexible circuit board 1 is connected to the display component 2.

[0042] In some embodiments, the terminal device further includes a daughter board 3, and the second electrical interface among the multiple electrical interfaces of the flexible circuit board 1 is used to electrically connect to the daughter board 3.

[0043] In the disclosed embodiment, the terminal device further includes a sub-board 3, which is responsible for functions such as charging the terminal device, transmitting headphone audio signals, signal connection processing, mobile phone communication processing, and sound conversion processing. The second electrical interface of the multiple electrical interfaces of the flexible circuit board 1 is used to electrically connect the sub-board 3, wherein the sub-board 3 can be connected to the flexible circuit board 1 through a wire, or the flexible circuit board 1 can include a connection PIN pin, and the sub-board 3 includes a connection PIN pin corresponding to the connection PIN pin of the flexible circuit board 1, and the flexible circuit board 1 and the sub-board 3 are connected through the connection PIN pin. As mentioned above, the terminal device may also include a main board, which is connected to the flexible circuit board 1, and is electrically connected to the flexible circuit board 1 through the sub-board 3. The connection of the flexible circuit board 1 to the main board can realize the connection of the sub-board 3 to the main board.

[0044] In the disclosed embodiment, the sub-board 3 is connected to the flexible circuit board 1, that is, the display component 2 and the sub-board 3 share the flexible circuit board 1. In this way, the number of connectors connecting the sub-board 3 to the main board can be reduced, thereby saving costs and improving the internal space utilization of the terminal device.

[0045] In some embodiments, the terminal device further includes a mainboard, and the third electrical interface among the multiple electrical interfaces of the flexible circuit board 1 is used to electrically connect to the mainboard.

[0046] In the disclosed embodiment, the terminal device also includes a motherboard, which integrates major chips such as memory, hard disk, graphics card, central processing unit (CPU), and various interfaces and expansion slots to control the operation of other components of the terminal device.

[0047] In the disclosed embodiment, the mainboard may be located on the side of the flexible circuit board 1 away from the contact with the display assembly 2. The third electrical interface of the multiple electrical interfaces of the flexible circuit board 1 is used to electrically connect the mainboard. The mainboard and the flexible circuit board 1 may be connected by wires or by connecting PIN pins. Since the mainboard is connected to the flexible circuit board 1, and as mentioned above, the flexible circuit board 1 is electrically connected to the display assembly 2 and the sub-board 3 respectively, the mainboard may control the display assembly 2 and the sub-board 3 through the flexible circuit board 1. Since the mainboard is located on the side of the flexible circuit board 1 away from the contact with the display assembly 2, and the flexible circuit board 1 is directly electrically connected to the mainboard, that is, the flexible circuit board 1 is connected to the mainboard without the need for a transfer flexible circuit board.

[0048] In the embodiment of the present disclosure, the third electrical interface among the multiple electrical interfaces of the flexible circuit board 1 is used for electrically connecting to the mainboard. The flexible circuit board 2 is connected to the mainboard without an adapter connector, which can improve the stability of signal transmission and reduce costs.

[0049] In some embodiments, the terminal device further includes: a cover plate 4, a middle frame 5, and a rear cover 6. The cover plate 4 covers the display component 2. The middle frame 5 is located between the accommodation areas formed by the cover plate 4 and the rear cover 6 and divides the accommodation area into different areas. The flexible circuit board 1 and the display component 2 are located in the first area 101 between the cover plate 4 and the middle frame 5.

[0050] In the embodiments of the present disclosure, the terminal device further includes a cover plate 4, a middle frame 5, and a rear cover 6. The cover plate 4 includes 3D glass (3Dimensional Glass), ultra-thin glass (Ultra Thin Glass, UTG), aluminosilicate glass, etc., for protecting the display component 2. The middle frame 5 serves as a bracket for the entire terminal device to protect the internal components of the terminal device. The rear cover 6 includes a metal rear cover, a plastic rear cover, a ceramic rear cover, etc., for protecting the terminal device and improving the drop resistance of the terminal device.

[0051] In the embodiments of the present disclosure, the cover plate 4 covers the display component 2. The middle frame 5 is located between the accommodation areas formed by the cover plate 4 and the rear cover 6 and divides the accommodation area into different areas. Through the division of the areas, different components can be isolated and the mutual interference can be reduced.

[0052] In the embodiments of the present disclosure, the flexible circuit board 1 and the display component 2 are located in the first area 101 between the cover plate 4 and the middle frame 5. Since the cover plate 4 covers the display component 2 and the display component 2 covers the flexible circuit board 1, the display component 2 and the flexible circuit board 1 are close to the cover plate 4, and the flexible circuit board 1 and the rear cover 6 are isolated by the middle frame 5.

[0053] In the embodiments of the present disclosure, the provision of the cover plate 4, the middle frame 5, and the rear cover 6 can improve the impact resistance of the display component 2 and the terminal device, and can also protect other internal components of the terminal device. Through the division of the areas, different components are divided into different areas, which can reduce the probability of mutual interference.

[0054] In some embodiments, the terminal device further includes a display driving component 7. The display driving component 7 is located on the side of the flexible circuit board 1 away from the cover plate 4 within the first area 101 and is electrically connected to the display component 2.

[0055] In the embodiments of the present disclosure, the terminal device includes a display driving component 7, which is electrically connected to the display component 2. The display driving component 7 can be connected to the display component 2 through a wire, or can be correspondingly connected through a connection PIN, or the display driving component 7 can be directly fixed on the display component 2 by welding or other means. The display driving component 7 includes a display driving chip, which is one of the main control components of the display component 2. Its main function is to send driving signals and data to the display component 2 in the form of electrical signals. By controlling the brightness and color of the display component 2, image information such as letters and pictures can be presented on the display component 2.

[0056] In the embodiments of the present disclosure, the display driving component 7 is located on the side of the flexible circuit board 1 away from the cover plate 4 in the first region 101 and is electrically connected to the display component 2, which can make better use of the space between the flexible circuit board 1 and the middle frame 5.

[0057] In the embodiments of the present disclosure, the display driving component 7 can drive the display component 2 to display. In addition, the display driving component 7 can also optimize the display effect of the display component 2, and by setting the display driving component 7 on the side of the flexible circuit board 1 away from the cover plate 4, the utilization rate of the internal space of the terminal device can be improved.

[0058] In some embodiments, when the terminal device includes a secondary board 3, the secondary board 3 is located in the second region 102 between the middle frame 5 and the rear cover 6.

[0059] In the embodiments of the present disclosure, when the terminal device includes a secondary board 3, the secondary board 3 is located in the second region 102 between the middle frame 5 and the rear cover 6. Since the middle frame 5 divides the accommodation area between the cover plate 4 and the rear cover 6 into different regions to reduce the possibility of interference between components, and as described above, the secondary board 3 is responsible for functions such as charging the terminal device and transmitting headphone audio signals. Since the secondary board 3 may heat up during the charging of the terminal device, setting the secondary board 3 in the second region between the middle frame 5 and the rear cover 6 makes the secondary board 3 closer to the rear cover 6, which can improve the heat dissipation of the secondary board 3.

[0060] In some embodiments, the terminal device further includes a battery 8, and the battery 8 is located in the third region 103 between the middle frame 5 and the rear cover 6. The second region 102 and the third region 103 are regions distributed in a direction perpendicular to the direction opposite to the cover plate 4 and the rear cover 6.

[0061] In the embodiments of the present disclosure, the terminal device further includes a battery 8. The battery 8 is an energy storage tool that provides power for the terminal device. The battery 8 is located in the third region 103 between the middle frame 5 and the rear cover 6. Since the battery 8 may also heat up during the charging process, setting the battery between the rear cover 6 and the middle frame 5 can better contact the rear cover 6, thereby enabling the battery to dissipate heat better.

[0062] In the embodiments of the present disclosure, the second region 102 and the third region 103 are regions distributed in a direction perpendicular to the direction opposite to the cover plate 4 and the rear cover 6. In some embodiments, the distance between the middle frame 5 corresponding to the third region 103 where the battery 8 is located and the rear cover 6 is set to be greater than the distance between the middle frame 5 corresponding to the second region 102 where the auxiliary board 3 is located and the rear cover 6. On the basis of saving the internal space of the terminal device by adjusting the positions of the multi-layer FPCs, the terminal device can be provided with a larger-sized battery 8, thereby improving the battery life of the terminal device.

[0063] Through the arrangement of the embodiments of the present disclosure, on the basis of saving the internal space of the terminal device, the terminal device can be provided with a larger-sized battery 8, thereby improving the battery life of the terminal device.

[0064] In some embodiments, the flexible circuit board 1 includes a plurality of wiring layers, the display assembly 2 includes a touch layer and a display layer, and the touch lines of the touch layer and the display lines of the display layer are located on different wiring layers of the flexible circuit board.

[0065] In the embodiments of the present disclosure, the flexible circuit board 1 includes a plurality of wiring layers, and different wiring layers can carry different circuits. For example, the wiring layer of the flexible circuit board 1 can be 4 layers or 6 layers. In one embodiment, the flexible circuit board 1 has 4 wiring layers, one of which is a touch IC circuit layer, one is a display IC circuit layer, and one is used to carry the connection lines of other components in the terminal device, such as the connection lines of the speaker, the motor, the microphone, etc. As mentioned above, the terminal device may further include a main board, and the flexible circuit board may further include a main board wiring layer; in another embodiment, the flexible circuit board 1 has 6 wiring layers, where the touch IC circuit layer and the display IC circuit layer are each two layers, and the remaining one is the main board wiring layer and one is the wiring layer for the connection lines of other components. It should be noted that the flexible circuit board 1 can also be 8 layers, 10 layers or more layers, and the connection lines of other components can also be located on the main board wiring layer, and the above single wiring layer can also be two or more layers, and the embodiments of the present disclosure do not limit this.

[0066] In the embodiments of the present disclosure, the flexible circuit board 1 may further include an insulating layer, and adjacent wiring layers can be isolated by coating insulating materials such as PI and PET on both sides of the wiring layer to prevent short circuits or interference.

[0067] In the embodiments of the present disclosure, the display component 2 includes a touch layer and a display layer, and the touch circuit of the touch layer and the display circuit of the display layer are located on different wiring layers of the flexible circuit board 1. As described above, one or n layers (n≥2) of the wiring layers of the flexible circuit board 1 are touch IC circuit layers, and the other one or n layers (n≥2) are display IC circuit layers. Among them, the touch IC circuit layer and the display IC circuit layer are isolated by an insulating layer or other wiring layers.

[0068] In the embodiments of the present disclosure, the multi-layer structure of the flexible circuit board 1 enables the touch circuit and the display circuit to be routed in layers, eliminating the need to set up two flexible circuit boards, which can save costs. In addition, the multi-layer structure can also increase the thickness and strength of the flexible circuit board 1 to better provide mechanical support for the display component 2.

[0069] In some embodiments, the display component 2 includes a flexible organic light-emitting diode screen 21.

[0070] In the embodiments of the present disclosure, the display component 2 includes a flexible organic light-emitting diode screen 21. As described above, due to its good flexibility, the flexible OLED screen 21 can be directly bent, thereby reducing the size of the bezel of the terminal device. However, hard OLED screens or LCD screens still need to be bent with the help of COF or flexible circuit boards.

[0071] In the embodiments of the present disclosure, since the flexible organic light-emitting diode screen 21 usually adopts the oncell implementation scheme, oncell refers to the method of embedding the touch panel function between the color filter substrate and the polarizer. This scheme enables the touch IC circuit and the display IC circuit to be set on different wiring layers of the same flexible circuit board, without the need to separate the touch IC circuit and the display IC circuit into two flexible circuit boards like hard OLED screens, thus occupying the internal space of the terminal device; nor is it necessary to integrate the touch IC circuit and the display IC circuit together like LCD screens, thus interfering with each other.

[0072] In addition, the flexible OLED screen 21 is thinner, lighter, has lower power consumption, and is more resistant to rubbing than hard OLED screens, LCD screens, etc. And because the flexible OLED screen 21 can emit light by itself, the image quality, color rendering naturalness can be improved, and there is no harm of blue light.

[0073] In the embodiments of the present disclosure, the display component 2 including the flexible organic light-emitting diode screen 21 can improve the space utilization rate of the terminal device, enhance the thinness and lightness of the terminal device, and also improve the image quality and color rendering naturalness.

[0074] Other embodiments of the present disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims above.

[0075] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A terminal device, characterized in that, Comprising: A display component; A flexible circuit board, which is in contact with a surface of the display component facing away from the display surface. The flexible circuit board includes a plurality of electrical interfaces, and a first electrical interface of the plurality of electrical interfaces is used for electrically connecting the display component; wherein, the flexible circuit board is used to support the display component.

2. The terminal device according to claim 1, wherein The display component covers the flexible circuit board, and the contact area between the flexible circuit board and the surface of the display component facing away from the display surface is greater than a preset area threshold.

3. The terminal device according to claim 1, wherein The terminal device further includes a daughter board, and a second electrical interface among the plurality of electrical interfaces of the flexible circuit board is used for electrically connecting the daughter board.

4. The terminal device according to claim 1, characterized in that The terminal device further includes a main board, and a third electrical interface among the plurality of electrical interfaces of the flexible circuit board is used for electrically connecting the main board.

5. The terminal device according to any one of claims 1 to 4, characterized in that The terminal device further includes: a cover plate, a middle frame, and a rear cover. The cover plate covers the display surface of the display component. The middle frame is located between the accommodation areas formed by the cover plate and the rear cover and divides the accommodation area into different areas; the flexible circuit board and the display component are located in a first area between the cover plate and the middle frame.

6. The terminal device according to claim 5, wherein The terminal device further includes a display driving component, which is located on a side of the flexible circuit board away from the cover plate in the first area and is electrically connected to the display component.

7. The terminal device according to claim 5, characterized in that When the terminal device includes a daughter board, the daughter board is located in a second area between the middle frame and the rear cover.

8. The terminal device according to claim 7, wherein The terminal device further includes a battery, and the battery is located in a third area between the middle frame and the rear cover. The second area and the third area are areas distributed in a direction perpendicular to the direction opposite to the cover plate and the rear cover.

9. The terminal device according to claim 1, characterized in that, The flexible circuit board includes a plurality of wiring layers. The display component includes a touch layer and a display layer, and the touch lines of the touch layer and the display lines of the display layer are located on different wiring layers of the flexible circuit board.

10. The terminal device according to claim 1, wherein The display component includes a flexible organic light-emitting diode screen.

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