CN112333913A - Flexible circuit board structure - Google Patents
Flexible circuit board structure Download PDFInfo
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- CN112333913A CN112333913A CN202011140195.1A CN202011140195A CN112333913A CN 112333913 A CN112333913 A CN 112333913A CN 202011140195 A CN202011140195 A CN 202011140195A CN 112333913 A CN112333913 A CN 112333913A
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- Prior art keywords
- circuit board
- flexible circuit
- close
- bending portion
- arc
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
- H05K2201/2009—Reinforced areas, e.g. for a specific part of a flexible printed circuit
Abstract
An embodiment of the present invention provides a flexible circuit board structure, where the flexible circuit board includes: the flexible circuit board comprises a main ground layer and a signal line layer, wherein the main ground layer comprises a connecting part, a main body and a bent part, the connecting part, the main body and the bent part are of an integrated structure, one end of the connecting part, which is close to the bent part, is in an arc shape, one end of the main body, which is close to the bent part, is in an arc shape, and the arc shape is in a single arc shape or a wavy shape formed by a plurality of continuous arc shapes; through in the flexible circuit board main ground layer connecting portion are close to kink one end is the arcuation setting, the main part is close to kink one end is the arcuation setting, has done arc optimal design at the edge of kink both sides to make the stress of kink both sides border department not on a straight line, thereby avoid appearing stress concentration in the bending area, thereby effectively reduce the easy problem that breaks or slightly disconnected of taking place of flexible circuit board, promote the use reliability of product.
Description
Technical Field
The embodiment of the invention relates to the field of flexible circuit boards, in particular to a flexible circuit board structure.
Background
With the continuous development of communication technology, terminals such as smart phones, tablet computers and notebook computers are widely popularized and applied, and the terminals are developed towards diversification and individuation, and increasingly become indispensable terminals in life and work of people. Nowadays, terminals such as mobile phones and tablet computers become electronic devices that people carry with them daily, and a Flexible Printed Circuit (FPC) is indispensable in the terminals, and the FPC is a Printed Circuit board made of a Flexible insulating base material such as polyimide or polyester film, and is generally used for connecting portions of products such as cellular phones, notebook computers, digital cameras, liquid crystal displays, automobile instrument panels, and direction lights. The flexible circuit board has higher flexibility, can fold, coil or crooked according to the multi-angle, carries out three-dimensional equipment to reduce electronic product's volume, make electrical equipment miniaturization, thin type, the flexible circuit board has the characteristics of flexibility, easy buckling, is used in multiple product fields such as portable terminal widely, often is used for the connection between the main and auxiliary circuit board, mainboard and the connection between functional component such as button, camera.
In the process of research and practice of the prior art, the inventors of the embodiments of the present application found that, as the integration degree of the terminal is higher and higher, the flexible circuit board needs to distribute more signal lines in a limited size space, so that the signal lines are designed to be thinner and thinner, and the requirement on the reliability of the flexible circuit board is higher and higher. As shown in fig. 1a, 1b and 1c, the flexible circuit board 1 includes a main ground layer 11 and a signal line layer 12, and a position where a copper and no copper junction exists in a bending region at present is a flat straight line shape, so that stress concentration easily occurs, thereby causing a problem that the flexible circuit board is easily broken or slightly broken, and affecting a life cycle of a product.
Disclosure of Invention
The embodiment of the invention provides a flexible circuit board structure, which can avoid stress concentration in a bending area, thereby solving the problem that the flexible circuit board is easy to break or slightly break.
The embodiment of the invention provides a flexible circuit board structure, which comprises: the flexible circuit board comprises a main layer and a signal line layer, wherein the main layer comprises a connecting portion, a main body and a bending portion, the connecting portion is of an integrated structure with the main body and the bending portion, one end of the connecting portion is close to the bending portion and is in an arc-shaped setting, and one end of the main body is close to the bending portion and is in an arc-shaped setting.
In some embodiments, the arc is a single arc.
In some embodiments, the bent portion is not provided with a copper sheet.
In some embodiments, the bending portion includes a plurality of bar-shaped hollow holes, a distance between two adjacent bar-shaped hollow holes ranges from 0.1mm to 0.15mm, and a width of each bar-shaped hollow hole ranges from 0.3mm to 0.75 mm.
In some embodiments, the bending portion includes a plurality of strip-shaped hollow holes, a distance between two adjacent strip-shaped hollow holes is 0.1mm, and a width of each strip-shaped hollow hole is 0.5 mm.
In some embodiments, the arc is a wave formed by a plurality of consecutive arcs.
In some embodiments, the bent portion is not provided with a copper sheet, and the bent portion is used for exposing a part of the signal wire layer.
In some embodiments, the bending portion includes a plurality of bar-shaped hollow holes, a distance between two adjacent bar-shaped hollow holes ranges from 0.1mm to 0.15mm, and a width of each bar-shaped hollow hole ranges from 0.3mm to 0.75 mm.
In some embodiments, the bending portion includes a plurality of strip-shaped hollow holes, a distance between two adjacent strip-shaped hollow holes is 0.1mm, and a width of each strip-shaped hollow hole is 0.5 mm.
In some embodiments, the connecting portion includes a first connecting portion and a second connecting portion, and the bending portion includes a first bending portion and a second bending portion.
In some embodiments, the first connecting portion is disposed in a circular arc shape near one end of the first bending portion, and the main body is disposed in a circular arc shape near one end of the first bending portion; the second connecting portion is close to one end of the second bending portion and is in an arc shape, and the main body is close to one end of the second bending portion and is in an arc shape.
In some embodiments, the arc is a single arc or a wave formed by a plurality of consecutive arcs.
The embodiment of the invention provides a flexible circuit board structure, wherein one end of a connecting part of a main layer of a flexible circuit board, which is close to a bent part, is arranged in an arc shape, one end of a main body, which is close to the bent part, is arranged in the arc shape, and the edges of two sides of the bent part are designed in an arc optimization mode, so that the stress at the edges of two sides of the bent part are not in the same straight line, the stress can be greatly reduced, the stress concentration in a bent area is avoided, the problem that the flexible circuit board is easy to break or slightly break is effectively solved, and the use reliability of a product is.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1a is a schematic view of a first structure of a conventional flexible circuit board according to an embodiment of the present invention.
Fig. 1b is a schematic structural diagram of a conventional flexible circuit board according to an embodiment of the present invention.
Fig. 1c is a schematic structural diagram of a conventional flexible circuit board according to an embodiment of the present invention.
Fig. 2a is a schematic view of a first structure of a flexible circuit board according to an embodiment of the present invention.
Fig. 2b is a schematic diagram of a second structure of the flexible circuit board according to the embodiment of the present invention.
Fig. 2c is a schematic structural diagram of a flexible circuit board according to an embodiment of the present invention.
Fig. 3a is a schematic diagram of a fourth structure of a flexible circuit board according to an embodiment of the present invention.
Fig. 3b is a schematic structural diagram of a fifth flexible circuit board according to an embodiment of the present invention.
Fig. 4a is a schematic structural diagram of a sixth flexible circuit board according to an embodiment of the present invention.
Fig. 4b is a schematic diagram of a seventh structure of the flexible circuit board according to the embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "one side", "first side", "second side", "two sides", "adjacent side", "inner side", "outer side", "one end", "two ends", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "disposed," "connected," "spaced," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials. In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Embodiments of the present invention provide a flexible circuit board structure, which can be applied to a terminal, and the flexible circuit board structure can be used for a connection portion of a product such as a cellular phone, a notebook computer, a digital camera, a liquid crystal display, an automobile dashboard, or a turn signal, and the flexible circuit board structure will be described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
The present invention will be described in detail with reference to the accompanying drawings and embodiments, and refer to fig. 2a to 5.
Specifically, an embodiment of the present invention provides a flexible printed circuit board structure, where the flexible printed circuit board structure includes: the flexible circuit board comprises a main layer and a signal line layer, wherein the main layer comprises a connecting portion, a main body and a bending portion, the connecting portion is of an integrated structure with the main body and the bending portion, one end of the connecting portion is close to the bending portion and is in an arc-shaped setting, and one end of the main body is close to the bending portion and is in an arc-shaped setting.
Optionally, in an embodiment of the present invention, the connecting portion includes a first connecting portion and a second connecting portion, the bending portion includes a first bending portion and a second bending portion, an end of the first connecting portion close to the first bending portion is arc-shaped, and an end of the main body close to the first bending portion is arc-shaped; the second connecting portion is close to one end of the second bending portion and is in an arc shape, and the main body is close to one end of the second bending portion and is in an arc shape.
Specifically, in an embodiment of the present invention, the arc shape is a single arc shape or a wavy shape formed by a plurality of continuous arc shapes.
Optionally, in an embodiment of the present invention, the bent portion includes a plurality of strip-shaped hollow holes, a width range of the strip-shaped hollow holes is between 0.3mm and 0.75mm, a distance range of the strip-shaped hollow holes is between 0.1mm and 0.15mm, for example, a distance between two adjacent strip-shaped hollow holes is 0.1mm, and a width of the strip-shaped hollow hole is 0.5 mm.
In summary, the embodiment of the present invention provides a flexible circuit board structure, wherein one end of the connecting portion of the main layer of the flexible circuit board, which is close to the bending portion, is arranged in an arc shape, one end of the main body, which is close to the bending portion, is arranged in an arc shape, and the edges of the two sides of the bending portion are designed in an arc optimization manner, so that the stresses at the edges of the two sides of the bending portion are not in a straight line, the stresses can be greatly reduced, thereby avoiding stress concentration in the bending region, effectively reducing the problem that the flexible circuit board is easy to break or slightly break, and improving the use reliability of the product.
Referring to fig. 2a and fig. 2c, an embodiment of the present invention provides a flexible circuit board structure, where the flexible circuit board structure includes: flexible circuit board 1, flexible circuit board 1 includes main ground layer 11 and signal line layer 12, main ground layer 11 includes connecting portion 111, main part 113 and kink 112, connecting portion 111 main part 113 with kink 112 structure as an organic whole, connecting portion 111 is close to kink 112 one end 1111 is single circular-arc setting, main part 113 is close to kink 112 one end 1131 is single circular-arc setting, kink 112 does not set up the copper sheet.
Optionally, referring to fig. 2b and fig. 2c, in an embodiment of the present invention, the connecting portion 111 includes a first connecting portion 111a and a second connecting portion 111b, and the bending portion 112 includes a first bending portion 112a and a second bending portion 112 b; the first connecting portion 111a is disposed in a single arc shape near one end 111a1 of the first bent portion 112a, and the main body 113 is disposed in a single arc shape near one end 1131 of the first bent portion 112 a; the second connecting portion 111b is disposed in a single arc shape near one end 111b1 of the second bent portion 112b, the main body 113 is disposed in a single arc shape near one end 1132 of the second bent portion 112b, the bent portion 112 is not provided with copper sheets, and the bent portion 112 is used for exposing a portion of the signal line layer 12.
Referring to fig. 3a, a flexible circuit board structure according to an embodiment of the present invention includes: flexible circuit board 1, flexible circuit board 1 includes main ground layer 11 and signal line layer 12, main ground layer 11 includes connecting portion 111, main part 113 and kink 112, connecting portion 111 main part 113 with kink 112 structure as an organic whole, connecting portion 111 is close to kink 112 one end 1111 is single circular-arc setting, main part 113 is close to kink 112 one end 1131 is single circular-arc setting. The bent portion 112 is not provided with a copper sheet, the bent portion 112 includes a plurality of strip-shaped hollow holes 1121, a width range of the strip-shaped hollow holes 1121 is between 0.3mm and 0.75mm, a distance range of the strip-shaped hollow holes 1121 is between 0.1mm and 0.15mm, for example, a distance between two adjacent strip-shaped hollow holes 1121 is 0.1mm, and a width of the strip-shaped hollow holes 1121 is 0.5 mm.
Optionally, referring to fig. 3b, in an embodiment of the present invention, the connecting portion 111 includes a first connecting portion 111a and a second connecting portion 111b, and the bending portion 112 includes a first bending portion 112a and a second bending portion 112 b; the first connecting portion 111a is disposed in a single arc shape near one end 111a1 of the first bent portion 112a, and the main body 113 is disposed in a single arc shape near one end 1131 of the first bent portion 112 a; the second connecting portion 111b is disposed in a single arc shape near one end 111b1 of the second bending portion 112b, the main body 113 is disposed in a single arc shape near one end 1132 of the second bending portion 112b, the bending portion 112 is not provided with a copper sheet, the bending portion 112 is configured to expose a portion of the signal line layer 12, the first bending portion 112a includes a plurality of first strip-shaped hollow holes 112a1, the second bending portion 112b includes a plurality of second strip-shaped hollow holes 112b1, the width ranges of the first strip-shaped hollow holes 112a1 and the second strip-shaped hollow holes 112b1 are 0.3mm to 0.75mm, the distance range of the strip-shaped hollow holes 1121 is 0.1mm to 0.15mm, for example, the distance between two adjacent first strip-shaped hollow holes 112a1 is 0.1mm, and the width of the first strip-shaped hollow holes 112a1 is 0.5 mm; the distance between two adjacent second strip-shaped hollow holes 112b1 is 0.1mm, and the width of the second strip-shaped hollow holes 112b1 is 0.5 mm.
The embodiment of the invention provides a flexible circuit board structure, which comprises: the flexible circuit board, the flexible circuit board includes main stratum and signal line layer, the main stratum includes connecting portion, main part and kink, connecting portion the main part with kink structure as an organic whole, connecting portion are close to kink one end is the wavy setting that a plurality of continuous circular arcs formed, the main part is close to kink one end is the wavy setting that is formed by a plurality of continuous circular arcs, the kink does not set up the copper sheet.
Optionally, referring to fig. 4a, a flexible circuit board structure according to an embodiment of the present invention includes: the flexible circuit board 1, the flexible circuit board 1 includes a main ground layer 11 and a signal line layer 12, the main ground layer 11 includes a connecting portion 111, a main body 113 and a bending portion 112, the connecting portion 111, the main body 113 and the bending portion 112 are integrated structures, the connecting portion 111 is close to a wavy arrangement that a plurality of continuous circular arcs formed is one end 1111 of the bending portion 112, the main body 113 is close to a wavy arrangement that one end 1131 of the bending portion 112 is formed by a plurality of continuous circular arcs, the bending portion 112 does not set up copper sheet, the bending portion 112 includes a plurality of strip-shaped hollowed holes 1121, a width range of the strip-shaped hollowed holes 1121 is between 0.3mm to 0.75mm, a distance range of the strip-shaped hollowed holes 1121 is between 0.1mm to 0.15mm, for example, two adjacent strips of the strip-shaped holes 1121 have a distance of 0.1mm, and a width of the strip-shaped hollowed-shaped holes are 0.5 mm.
Optionally, referring to fig. 4b, a flexible circuit board structure according to an embodiment of the present invention includes: the flexible circuit board 1, the flexible circuit board 1 includes a main ground layer 11 and a signal line layer 12, the main ground layer 11 includes a connecting portion 111, a main body 113 and a bending portion 112, the connecting portion 111, the main body 113 and the bending portion 112 are integrated, one end of the connecting portion 111 close to the bending portion 112 is in a wavy arrangement formed by a plurality of continuous circular arcs, one end of the main body 113 close to the bending portion 112 is in a wavy arrangement formed by a plurality of continuous circular arcs, the bending portion 112 is not provided with copper sheets, the first bending portion 112a includes a plurality of first strip-shaped hollowed holes 112a1, the second bending portion 112b includes a plurality of second strip-shaped hollowed holes 112b1, the width ranges of the first strip-shaped hollowed holes 112a1 and the second strip-shaped hollowed holes 112b1 are between 0.3mm and 0.75mm, the pitch range of the strip-shaped hollowed holes 1121 is between 0.1mm and 0.15mm, for example, the distance between two adjacent first strip-shaped hollow holes 112a1 is 0.1mm, and the width of the first strip-shaped hollow holes 112a1 is 0.5 mm; the distance between two adjacent second strip-shaped hollow holes 112b1 is 0.1mm, and the width of the second strip-shaped hollow holes 112b1 is 0.5 mm.
In particular, in the embodiment of the invention, the flexible circuit board structure is a laminated structure of a conventional two-layer flexible circuit board, the flexible circuit board is of a symmetrical structure and comprises a base material (PI), a Copper layer (Copper), a Copper Plated layer (Copper plate), a top layer laying layer (top coverage) and a Bottom layer laying layer (Bottom coverage), the substrate comprises a substrate first side and a substrate second side, the copper layer comprises a first copper layer and a second copper layer, the first copper layer overlying the substrate first side, the second copper layer overlying the substrate second side, the copper plating layer includes a first copper plating layer and a second copper plating layer, the first copper plating layer covers the first copper layer, the second copper plating layer covers the second copper plating layer, the top layer laid layer covers the first copper plating layer, the sub-layer overlays a second Copper plated layer, the main ground layer and the signal line layer being located in the Copper layer (Copper).
It should be noted that the embodiment provided by the present invention is a laminated structure of a conventional two-layer flexible circuit board, and the embodiment of the present invention is for illustration, and based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention except for the design mentioned in the embodiment of the present invention and consistent with the scheme of the embodiment of the present invention.
In summary, the embodiment of the present invention provides a flexible circuit board structure, wherein one end of the connecting portion of the main ground layer of the flexible circuit board, which is close to the bending portion, is arc-shaped, one end of the main body, which is close to the bending portion, is arc-shaped, and the edges at two sides of the bending portion are arc-shaped, so that the stresses at the edges at two sides of the bending portion are not in a straight line, and the stresses can be greatly reduced, thereby avoiding stress concentration in the bending region, effectively reducing the problem that the flexible circuit board is prone to fracture or micro-fracture, and improving the use reliability of the product.
The flexible circuit board structure in the embodiment of the present invention is explained above, and a description is given below of a terminal device to which the embodiment of the present invention can be applied. An embodiment of the present invention further provides a terminal, as shown in fig. 5, which shows a schematic structural diagram of a terminal according to an embodiment of the present invention, where the terminal may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like, and specifically:
as shown in fig. 5, the terminal may include Radio Frequency (RF) circuitry 501, memory 502 including one or more computer-readable storage media, input unit 503, display unit 504, sensor 505, audio circuitry 506, Wireless Fidelity (Wi-Fi) module 507, processor 508 including one or more processing cores, and power supply 509, among other components. Those skilled in the art will appreciate that the terminal structure shown in fig. 5 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the RF circuit 501 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, for receiving downlink information of a base station and then sending the received downlink information to the one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, RF circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 501 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.
The memory 502 may be used to store software programs and modules, and the processor 508 executes various functional applications and data processing by operating the software programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal, etc. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 access to the memory 502.
The input unit 503 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508. In addition, touch sensitive surfaces may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves. The input unit 503 may include other input devices in addition to the touch-sensitive surface. In particular, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 504 may be used to display information input by or provided to the user and various graphical user interfaces of the terminal, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 504 may include a Display screen, and optionally, the Display screen may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display screen, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display screen according to the type of touch event.
The terminal may also include at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts brightness of the display screen according to brightness of ambient light, and a proximity sensor that turns off the display screen and/or backlight when the terminal moves to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration (generally three axes) at each position, can detect the magnitude and position of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping) and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal, detailed description is omitted here.
Wi-Fi belongs to short-distance wireless transmission technology, and a terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through a Wi-Fi module 507, and provides wireless broadband internet access for the user. Although fig. 5 shows the Wi-Fi module 507, it is understood that it does not belong to the essential constitution of the terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 508 is a control center of the terminal, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 502 and calling data stored in the memory 502, thereby integrally monitoring the mobile phone. Optionally, processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.
The terminal also includes a power supply 509 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 508 via a power management system that may be used to manage charging, discharging, and power consumption. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Although not shown, the terminal may further include a camera, a bluetooth module, and the like, which will not be described herein. Specifically, in this embodiment, the processor 508 in the terminal loads the executable file corresponding to the process of one or more application programs into the memory 502 according to the following instructions, and the processor 508 runs the application program stored in the memory 502, so as to implement various functions.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments. The embodiments described above are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, those skilled in the art can obtain all other embodiments without creative efforts, and the design consistent with the embodiments of the present invention except the design mentioned in the embodiments of the present invention is within the protection scope of the present invention.
The foregoing detailed description is directed to a flexible circuit board structure provided in an embodiment of the present invention, and the principle and the implementation of the present invention are described herein by using specific examples, and the description of the foregoing embodiments is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A flexible circuit board structure, comprising: the flexible circuit board comprises a main layer and a signal line layer, wherein the main layer comprises a connecting portion, a main body and a bending portion, the connecting portion is of an integrated structure with the main body and the bending portion, one end of the connecting portion is close to the bending portion and is in an arc-shaped setting, and one end of the main body is close to the bending portion and is in an arc-shaped setting.
2. The flexible circuit board structure of claim 1, wherein the arc is a single arc.
3. The flexible circuit board structure of claim 2, wherein the bent portion is not provided with a copper sheet.
4. The flexible circuit board structure according to claim 2, wherein the bending portion includes a plurality of bar-shaped hollow holes, a distance between two adjacent bar-shaped hollow holes ranges from 0.1mm to 0.15mm, and a width of each bar-shaped hollow hole ranges from 0.3mm to 0.75 mm.
5. The flexible circuit board structure of claim 1, wherein the arc is wavy formed by a plurality of consecutive arcs.
6. The flexible circuit board structure according to claim 5, wherein the bent portion is not provided with a copper sheet, and the bent portion is used for exposing a portion of the signal line layer.
7. The flexible circuit board structure according to claim 5, wherein the bending portion includes a plurality of bar-shaped hollow holes, a distance between two adjacent bar-shaped hollow holes ranges from 0.1mm to 0.15mm, and a width of each bar-shaped hollow hole ranges from 0.3mm to 0.75 mm.
8. The flexible circuit board structure according to claim 1, wherein the connecting portion comprises a first connecting portion and a second connecting portion, and the bent portion comprises a first bent portion and a second bent portion.
9. The flexible circuit board structure of claim 8, wherein the first connecting portion is disposed in a circular arc shape at an end close to the first bent portion, and the main body is disposed in a circular arc shape at an end close to the first bent portion; the second connecting portion is close to one end of the second bending portion and is in an arc shape, and the main body is close to one end of the second bending portion and is in an arc shape.
10. The flexible circuit board structure of claim 9, wherein the arc is a single arc or a wave formed by a plurality of consecutive arcs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011140195.1A CN112333913A (en) | 2020-10-22 | 2020-10-22 | Flexible circuit board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011140195.1A CN112333913A (en) | 2020-10-22 | 2020-10-22 | Flexible circuit board structure |
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| Publication Number | Publication Date |
|---|---|
| CN112333913A true CN112333913A (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011140195.1A Pending CN112333913A (en) | 2020-10-22 | 2020-10-22 | Flexible circuit board structure |
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| Country | Link |
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| CN (1) | CN112333913A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022242504A1 (en) * | 2021-05-19 | 2022-11-24 | 北京梦之墨科技有限公司 | Low-stress flexible printed circuit board (fpc) and electronic device |
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Application publication date: 20210205 |