FPC (Flexible Printed Circuit) of high-precision laser-etched steel sheet

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) of a high-precision laser-etched steel sheet, which comprises a BTB (Board to Board) connecting end, a display end passive device area, a touch end control unit area, a touch end screen pressing golden finger and a display end screen pressing golden finger, the BTB connecting end, the display end passive device area, the touch control end control unit area, the touch control end screen pressing golden finger and the display end screen pressing golden finger are electrically connected through the FPC board, the FPC board is integrally formed by a middle board, a first side board and a second side board, the BTB connecting end is arranged on the first side board, the touch control end screen pressing golden finger is arranged on the second side board, and the display end passive device area, the touch control end control unit area, the touch control end screen pressing golden finger and the display end screen pressing golden finger are electrically connected through the FPC board. According to the FPC of the high-precision laser-engraved steel sheet, the two-dimensional code is laser-engraved on the steel sheet on the back surface of the BTB connecting end 1 in a high-precision manner, so that the space required by the two-dimensional code is smaller, for example, the two-dimensional code with 20 characters is jet-printed, the high-precision laser-engraved two-dimensional code only needs a 2 * 2mm space, and the space required by the two-dimensional code can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone OLED display screens, and in particular to a high-precision laser-engraved steel sheet FPC. Background Technology

[0002] FPC is a printed circuit board made of a flexible insulating substrate (such as polyimide or polyester film). This type of circuit board has the characteristics of being able to be bent, folded, and rolled up, which can adapt to the spatial layout of electronic devices of different shapes, thereby making efficient use of space and realizing electrical connections between electronic components.

[0003] Currently, with the continuous development of QR code traceability, in addition to its wider application and development in industries such as the Internet of Things and blockchain, relying on Internet technology, QR code traceability has also gained wider application and development in the circuit industry platform construction sector. It can also realize full traceability of product quality in raw material management, production and processing, warehousing and logistics, distribution management, anti-counterfeiting and anti-diversion, and intelligent marketing. By building this system, enterprises can achieve precise management of the raw material production and processing process, ensure product quality, and enhance consumer confidence. Traditionally, when printing QR codes on FPC, a white ink block needs to be pre-screened on the FPC, and then a black QR code pattern is printed on the white ink block. This type of printed QR code requires a large space, for example, 20 characters, the QR code size is square, and the square edge needs to be 4mm. However, because FPC circuit boards are inherently lightweight, thin, and small, in most cases there is no extra space to print QR codes. To solve the above problems, we propose a high-precision laser-engraved steel sheet FPC. Utility Model Content

[0004] The main objective of this invention is to provide a high-precision laser-engraved steel sheet FPC, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-precision laser-engraved steel sheet FPC includes a BTB connector, a display passive component area, a touch control unit area, touch screen gold fingers, and display screen gold fingers. The BTB connector, display passive component area, touch control unit area, touch screen gold fingers, and display screen gold fingers are electrically connected through an FPC board. The FPC board is integrally formed from a middle board, a first side board, and a second side board. The BTB connector is located on the first side board, and the touch screen gold fingers are located on the second side board. The display passive component area, touch control unit area, and display screen gold fingers are distributed on the middle board. The BTB connector consists of a high-precision laser-engraved QR code steel sheet on the back and a BTB connector. The BTB connector is connected to the motherboard via a BTB connector.

[0007] Preferably, a TAB-IC board is pressed and connected to the gold fingers of the display end, and the signal received by the BTB connection end is transmitted to each other through the signals of the gold fingers of the display end and the TAB-IC board.

[0008] Preferably, the touch terminal control unit area includes a touch IC and passive devices. The touch IC is used to process the analog signals in the touch terminal's gold fingers into digital signals, and the passive devices are used to provide voltage and current to the touch IC.

[0009] Preferably, the digital signal is electrically connected to the motherboard through the BTB connector, and the digital signal is transmitted to the motherboard through the BTB connector.

[0010] Preferably, the high-precision laser-etched steel sheet QR code on the back of the BTB connector is square, and the side of the square is 2mm.

[0011] Preferably, steel sheets are fixedly connected to the back of both the passive device area of ​​the display terminal and the control unit area of ​​the touch terminal.

[0012] Preferably, the passive device area of ​​the display end is used to provide voltage and current to the TAB-IC board on the gold fingers of the display end.

[0013] Compared with the prior art, this utility model has the following beneficial effects: This high-precision laser-engraved steel sheet FPC, by laser-engraving a QR code on the steel sheet on the back of the BTB connection end 1, requires less space. For example, when printing a 20-character QR code, the high-precision laser-engraved QR code only requires 2*2mm of space, which can greatly reduce the space required for the QR code. At the same time, the high-precision laser-engraved QR code steel sheet can also play a reinforcing role, making the main body OLED display FPC flatter, thereby avoiding the risk of BTB cold solder joints. The effect is better than the traditional method. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-precision laser-engraved steel sheet FPC according to this utility model.

[0015] In the diagram: 1. BTB connector; 2. Display passive component area; 3. Touch control unit area; 4. Touch screen gold fingers; 5. Display screen gold fingers; 6. FPC board; 7. Middle board; 8. First side board; 9. Second side board. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figure 1 As shown, a high-precision laser-engraved steel sheet FPC includes a BTB connector 1, a display passive component area 2, a touch control unit area 3, a touch screen gold finger 4, and a display screen gold finger 5. The BTB connector 1, display passive component area 2, touch control unit area 3, touch screen gold finger 4, and display screen gold finger 5 are electrically connected through an FPC board 6. The FPC board 6 is integrally formed from a middle board 7, a first side board 8, and a second side board 9. The BTB connector 1 is located on the first side board 8, and the touch screen gold finger 4 is located on the second side board 9. The display passive component area 2, touch control unit area 3, and display screen gold finger 5 are distributed on the middle board 7. The BTB connector 1 is composed of a high-precision laser-engraved QR code steel sheet on the back and a BTB connector. The BTB connector 1 is connected to the motherboard via a BTB connector.

[0018] In this embodiment, a TAB-IC board is pressed and connected to the gold finger 5 of the display end, and the signal received by the BTB connection end 1 is transmitted to each other through the gold finger 5 of the display end and the TAB-IC board.

[0019] Specifically, the display screen pressing gold finger 5 plays the role of connecting signal transmission. The ACF is used to press and connect the display screen pressing gold finger 5 and the TAB-IC board. The display screen pressing gold finger 5 acts as a bridge, which can transmit the signal received by the BTB connection terminal 1 and the signal of the TAB-IC board to each other.

[0020] In this embodiment, the touch terminal control unit area 3 includes a touch IC and passive devices. The touch IC is used to process the analog signals in the touch terminal screen pressing gold fingers 4 into digital signals. The passive devices are used to provide voltage and current to the touch IC. The digital signals are electrically connected to the motherboard through the BTB connection terminal 1 and are transmitted to the motherboard through the BTB connection terminal 1.

[0021] Specifically, the analog signals collected by the touchpad connected to the touch screen gold fingers 4 are transmitted to the touch IC on the touch control unit area 3 via ACF. The touch IC has signal processing capabilities, which can process the analog signals into digital signals and then transmit them to the motherboard via the BTB connection terminal 1. Furthermore, passive devices provide appropriate voltage and current to the touch IC, thereby ensuring that the touch IC can work normally.

[0022] In this embodiment, the QR code on the high-precision laser steel sheet on the back of the BTB connector 1 is square, and the side of the square is 2mm.

[0023] Specifically, using high-precision laser QR codes on the back steel sheet of BTB connector 1 requires less space. For example, when printing a 20-character QR code, the traditional inkjet QR code requires a size of 4*4mm, while the high-precision laser steel sheet QR code only requires a size of 2*2mm, which can greatly reduce the space required for inkjet QR codes.

[0024] In this embodiment, steel sheets are fixedly connected to the back of both the passive device area 2 of the display end and the control unit area 3 of the touch end.

[0025] Specifically, the steel sheet fixedly connected to the back of the passive component area 2 on the display end and the control unit area 3 on the touch end can play a reinforcing role, making the main body OLED display FPC flatter, thereby avoiding the risk of poor component soldering.

[0026] In this embodiment, the passive device area 2 of the display end is used to provide voltage and current to the TAB-IC board on the gold finger 5 of the display end.

[0027] Specifically, the passive device area 2 of the display end has the function of adjusting voltage and current, which can ensure that the TAB-IC board connected to the gold finger 5 of the display end can work normally under the rated voltage and current.

[0028] It should be noted that this utility model is a high-precision laser-engraved steel sheet FPC. By laser-engraving a QR code on the steel sheet on the back of the BTB connector 1, product identity information can be stored through the QR code pattern, thereby enabling full traceability of product quality. At the same time, the high-precision laser-engraved QR code steel sheet can also serve as a reinforcement function, making the main body OLED display FPC flatter, thereby avoiding the risk of BTB poor soldering.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-precision laser-engraved steel FPC, comprising a BTB connection end (1), a display end passive device area (2), a touch control end control unit area (3), a touch control end screen pressing gold finger (4), and a display end screen pressing gold finger (5), characterized in that: The BTB connecting end (1), the display end passive device area (2), the touch end control unit area (3), the touch end screen pressing gold finger (4), the display end screen pressing gold finger (5) are electrically connected through the FPC board (6), the FPC board (6) is integrally formed by the middle plate (7), the first side plate (8) and the second side plate (9), the BTB connecting end (1) is arranged on the first side plate (8), the touch end screen pressing gold finger (4) is arranged on the second side plate (9), and the display end passive device area (2), the touch end control unit area (3) and the display end screen pressing gold finger (5) are distributed on the middle plate (7), the BTB connecting end (1) is composed of a back high-precision laser etching two-dimensional code steel sheet and a BTB, and the BTB connecting end (1) is buckled and connected with the mainboard through a BTB connector.

2. The FPC of high-precision laser-engraved steel sheet according to claim 1, characterized in that: The display end screen pressing gold finger (5) is connected with a TAB-IC board, and the signal received by the BTB connecting end (1) is transmitted to the TAB-IC board through the display end screen pressing gold finger (5).

3. The FPC of high-precision laser-engraved steel sheet according to claim 2, characterized in that: The touch end control unit area (3) includes a touch IC and a passive device, the touch IC is used for processing analog signals in the touch end screen pressing gold finger (4) into digital signals, and the passive device is used for providing voltage and current for the touch IC.

4. The FPC of high-precision laser-engraved steel sheet according to claim 3, characterized in that: The digital signal is electrically connected with the mainboard through the BTB connecting end (1), and the digital signal is transmitted to the mainboard through the BTB connecting end (1).

5. The FPC of high-precision laser-engraved steel sheet according to claim 1, characterized in that: The back high-precision laser etching steel sheet two-dimensional code of the BTB connecting end (1) is square, and the side line of the square is 2mm.

6. The FPC of high-precision laser-engraved steel sheet according to claim 1, characterized in that: The back of the display end passive device area (2) and the touch end control unit area (3) is fixedly connected with a steel sheet.

7. The FPC of high-precision laser-engraved steel sheet according to claim 1, characterized in that: The display end passive device area (2) is used for providing voltage and current for the TAB-IC board on the display end screen pressing gold finger (5).

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