Communication device and display module based on penetrating pin header

Abstract

The present invention discloses a communication device and a display module based on a through-type pin header, wherein one of the communication devices based on a through-type pin header comprises: a first circuit board for outputting a display control signal; a second circuit board, isolated and arranged on one side of the first circuit board, the second circuit board being provided with a pin header interface and a pin header through hole; a female pin, arranged on the surface of the first circuit board close to the second circuit board, for transmitting a control signal to the first circuit board; a pin header, arranged between the first circuit board and the second circuit board, so that the two are connected in communication. The present invention also discloses a display device based on a through-type pin header. The communication device and display device based on a through-type pin header provided by the present invention can avoid the problem of communication signal crosstalk.

Description

Technical Field

[0001] The present invention relates to the field of display, and in particular to a display module and a device based on a penetrating pin header. Background Art

[0002] At present, the display module controller is generally provided with an external interface for providing power, communication and controlling the display status of the display module. The commonly used interface methods include: 1. Setting wiring terminals; 2. Externally leading the wires. However, setting too many wiring terminals will directly increase the volume of the display module and the area of ​​the circuit board in the display module. If the method of externally leading the wires is used, there is a possibility of causing a short circuit in the wires and reducing the aesthetics of the display module.

[0003] With the increasing demand for sophisticated electronic products, product stacking structures pay more attention to space utilization and aesthetics. At the same time, in a limited space, reducing the crosstalk of other circuits to communication circuits has also become a technical problem that needs to be solved. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a communication device based on a through-type pin header, which can avoid electromagnetic crosstalk between the communication interface and the circuit in the second circuit board.

[0005] The present invention also provides a display device based on a penetrating pin header.

[0006] In a first aspect, an embodiment of the present invention provides a communication device based on a through-type pin header, comprising: a first circuit board, for outputting a display control signal;

[0007] A second circuit board is isolated and arranged on one side of the first circuit board, and the second circuit board is provided with a pin header interface and a pin header through hole;

[0008] A female connector, disposed on a surface of the first circuit board on a side close to the second circuit board, for transmitting a control signal to the first circuit board;

[0009] The pin header is arranged between the first circuit board and the second circuit board to enable the two to communicate with each other.

[0010] The communication device based on the penetrating pin header of the embodiment of the present invention has at least the following beneficial effects: a communication interface is set in the first circuit board by setting a female header, and communication pins are set in the pin header, and the communication pins are made to penetrate the second circuit board to avoid electromagnetic crosstalk between the communication interface and the circuit in the second circuit board.

[0011] According to another embodiment of the communication device based on the penetration pin header of the present invention, each end of the pin header includes a communication pin and a control pin.

[0012] According to another embodiment of the present invention, in a communication device based on a penetrating pin header, one end of the pin header is electrically connected to the female pin header, a control pin at the other end of the pin header is electrically connected to the pin header interface, and a control communication pin at the other end of the pin header passes through the pin header through hole and is electrically isolated from the second circuit board.

[0013] According to another embodiment of the communication device based on the through-type pin header of the present invention, an electromagnetic isolation layer is provided between the second circuit board and the first circuit board.

[0014] In a second aspect, an embodiment of the present invention provides a display device based on a through-type pin header, wherein a backlight module is provided on a side of the first circuit board away from the second circuit board;

[0015] A display module is provided on a side of the backlight module away from the first circuit board;

[0016] The display module is provided with a light-transmitting protective layer on the side away from the backlight module. The display device based on the through-type pin header of the embodiment of the present invention has at least the following beneficial effects: by setting a female header to set a communication interface in the first circuit board, and by setting a communication pin in the pin header, and allowing the communication pin to penetrate the second circuit board, electromagnetic crosstalk between the communication interface and the circuit in the second circuit board is avoided, thereby ensuring that the display signal of the display device is not interfered by other circuits.

[0017] According to a display device based on a through-type pin header according to another embodiment of the present invention, a connection terminal is provided on a side of the second circuit board away from the first circuit board.

[0018] According to another embodiment of the present invention, in a display device based on a through-type pin header, the power connection terminal includes: a connection terminal screw, a connection terminal bracket, a connection terminal spring, and a connection terminal wire pressing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a communication device based on a penetration type pin header in an embodiment of the present invention;

[0020] Figure 2 is a structural schematic diagram of a display device based on a penetrating pin header in an embodiment of the present invention;

[0021] Figure 3 yes Figure 1 A partial enlarged schematic diagram of part I in the middle.

[0022] Description of Reference Numerals

[0023] 1. First circuit board; 2. Second circuit board; 3. Pin header; 4. Female header; 51. Power supply rear shell; 52. Power supply front shell; 61. Transparent protective layer; 62. Display module; 63. Backlight module; 7. Power supply terminal; 71. Terminal crimping frame; 72. Terminal spring; 73. Terminal screw; 74. Terminal bracket; 8. Display frame; 9. Touch button. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments to clearly and completely describe the concept of the present invention and the technical effects produced, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0025] In the description of the present invention, if it involves a description of orientation, for example, the orientation or position relationship indicated by "upper", "lower", "front", "back", "left", "right", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. If a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, connected, or installed on the other feature.

[0026] In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than" or "exceed" is involved, it should be understood as not including the number itself, if "above", "below" or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] Reference Figure 1 , Figure 1The schematic diagram of the structure of the communication device based on the through-type pin header 3 in the embodiment of the present invention is shown. The communication device based on the through-type pin header 3 includes: a first circuit board 1, used to output a display control signal; a second circuit board 2, isolated and arranged on one side of the first circuit board 1, the second circuit board 2 is provided with a pin header interface (not shown in the figure) and a pin header through hole (not shown in the figure); a female header 4, arranged on the surface of the first circuit board 1 close to the second circuit board 2, for transmitting a control signal to the first circuit board 1; and a pin header 3, arranged between the first circuit board 1 and the second circuit board 2, so that the two are connected in communication.

[0028] Each end of the pin header 3 includes a communication pin 31 and a control pin 32. One end of the pin header 3 is engaged with the female header 4 for electrical connection, the control pin 32 at the other end of the pin header 3 is electrically connected to the pin header interface, and the control communication pin 31 at the other end of the pin header 3 passes through the through hole of the pin header 3 and is electrically isolated from the second circuit board 2. An electromagnetic isolation layer (not shown) is provided between the second circuit board 2 and the first circuit board 1.

[0029] The communication pin 31 in the pin header 3 passes through the through hole of the pin header 3 and partially extends to receive a communication signal from the outside and directly transmit the communication signal to the first circuit board 1. The control pin 32 is provided to realize the electrical connection between the wiring arranged on the second circuit board 2 and the wiring arranged on the first circuit board 1.

[0030] Communication crosstalk is avoided by isolating the communication signal and the control signal for transmission.

[0031] The electromagnetic isolation layer may be made of an oil film having electromagnetic isolation properties, and is disposed on the surface of the second circuit board 2 close to the first circuit board 1 by coating.

[0032] By isolating the first circuit board 1 and the second circuit board 2, signal crosstalk caused by parallel wiring between the first circuit board 1 and the second circuit board 2 can be avoided. In addition, the pin header 3 is a rigid structure, which can avoid the risk of short circuit caused by external guide wires for communication transmission.

[0033] In addition, in other embodiments, a flexible circuit board can be used to replace the pin header. Since the flexible circuit has good stretchability, it can meet the requirements of different stacking structures. The flexible circuit board has good electrical properties, dielectric properties, and heat resistance, which can ensure that the communication device will not reduce its working performance due to long-term operation.

[0034] By using reinforcing materials or setting a backing plate to increase its strength, additional mechanical stability can be obtained. When a backing plate with good heat dissipation is used, the heat dissipation function of the flexible circuit board can be further optimized.

[0035] In this embodiment, a female header 4 is provided as a signal interface of the first circuit board 1, and a pin header 3 is provided to receive a communication signal from the outside or a power signal from the second circuit board 2. Since the wiring in the first circuit board 1 is vertically arranged and electrically connected to the female header 4, the need to add a wiring area in a traditional circuit board can be avoided, thereby achieving the technical effect of reducing the area of ​​the circuit board.

[0036] Please refer to Figure 3 , Figure 3 for Figure 1 The enlarged schematic diagram of the part I in the middle. Figure 3 As shown, the second circuit board 2 is provided with a pin header interface 302 and a pin header through hole 301. The pin header interface 302 is used to be electrically connected to the control pin 32, so that the wiring arranged on the second circuit board 2 is electrically connected to the control pin 32, thereby allowing the control signal of the second circuit board 2 to be transmitted to the first circuit board 1 via the pin header 3. The pin header through hole 301 is used to provide a communication channel for the communication pin 31, and the communication pin 31 is electrically isolated from the second circuit board 2. The communication pin 31 is only used to receive external communication signals and transmit them to the first circuit board 1 via the female header 4.

[0037] Reference Figure 2 , shows a schematic diagram of the structure of a display device based on a through-type pin header 3 in an embodiment of the present invention. Figure 2 As shown, a display device based on a through-type pin header 3, in addition to the above-mentioned communication device based on the through-type pin header 3, further includes: a backlight module 63, arranged on the side of the first circuit board 1 away from the second circuit board 2; a display module 62, arranged on the side of the backlight module 63 away from the first circuit board 1; a light-transmitting protective layer 61, arranged on the side of the display module 62 away from the backlight module 63; a power terminal 7, arranged on the side of the second circuit board 2 away from the first circuit board 1.

[0038] The power terminal 7 is used to receive an external power signal to provide a source signal for the display device, and includes: a terminal screw 73 , a terminal bracket 74 , a terminal spring 72 , and a terminal pressing frame 71 .

[0039] The display device based on the through-type pin header 3 further includes a power supply housing and a display frame 8 for fixing the relative positions of the power supply terminal 7, the backlight module 63, the display module 62, and the light-transmitting protective layer 61. The power supply housing includes a power supply front housing 52 and a power supply rear housing 51. The power supply front housing 52 and the power supply rear housing 51 are fixed in relative positions by means of a buckle. The power supply front housing 52 and the display frame 8 are fixed in relative positions by means of a buckle.

[0040] The side wall of the terminal bracket 74 is provided with a through hole (not indicated in the figure), and the terminal screw 73 passes through the through hole on the side wall of the terminal bracket 74 and contacts the terminal spring 72. The terminal spring 72 includes a first spring area, a second spring area, and a third spring area, wherein the first spring area and the third spring area are arranged in parallel, and the second spring area is used to connect the first spring area and the third spring area. The second spring area is at an angle of 90° to the first spring area and the third spring area respectively. The terminal pressing frame 71 is used to press the third spring area to fix the relative position of the terminal spring 72.

[0041] A snap-fit ​​groove (not marked in the figure) is provided at the edge of the display frame 8 , and the backlight module 63 , the display module 62 , and the light-transmitting protective layer 61 are snap-fitted to the snap-fit ​​groove to fix their relative positions.

[0042] The backlight module 63 includes a plurality of LED diodes. The first circuit board 1 is a motherboard for outputting display output signals to control the working states of different LED diodes in the backlight module 63 .

[0043] The second circuit board 2 is a sub-board, which is used to receive a power signal and convert the power signal to provide a source signal for the first circuit board 1 .

[0044] The display device based on the through-type pin header further includes a touch button 9, which is arranged at the edge area of ​​the display device to control the opening and closing of the display device.

[0045] The mother header 4 is provided as the signal interface of the first circuit board 1, and the pin header 3 is provided to receive communication signals from the outside or power signals from the second circuit board 2. Since the wiring in the first circuit board 1 is arranged vertically and electrically connected to the mother header 4, it is possible to avoid the need to add a wiring area in the traditional circuit board to reduce the area of ​​the circuit board, thereby reducing the overall product volume. At the same time, since the pin header 3 is respectively provided with a communication pin and a control pin, the communication signal and other control signals are separated, thereby reducing the signal crosstalk existing in the communication signal propagation process.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A communication device based on a penetrating pin header, It is characterized in that include: A first circuit board, used for outputting a display control signal; A second circuit board is isolated and arranged on one side of the first circuit board, and the second circuit board is provided with a pin header interface and a pin header through hole; A female connector, disposed on a surface of the first circuit board on a side close to the second circuit board, for transmitting a control signal to the first circuit board; A pin header is arranged between the first circuit board and the second circuit board to enable the two to communicate with each other; The pin row is a rigid structure; Each end of the pin row includes a communication pin and a control pin; One end of the pin header is electrically connected to the female pin header, a control pin at the other end of the pin header is electrically connected to the pin header interface, and a communication pin at the other end of the pin header passes through the pin header through hole and is electrically isolated from the second circuit board; An electromagnetic isolation layer is provided between the second circuit board and the first circuit board.

2. A display module based on a through-type pin header, It is characterized in that include: The communication device based on the through-type pin header as described in claim 1.

3. The display module based on the through-type pin header according to claim 2, It is characterized in that A backlight module is provided on a side of the first circuit board away from the second circuit board; A display module is provided on a side of the backlight module away from the first circuit board; A light-transmitting protective layer is disposed on a side of the display module away from the backlight module.

4. The display module based on the through-type pin header according to claim 2, It is characterized in that A power connection terminal is disposed on a side of the second circuit board away from the first circuit board.

5. The display module based on the through-type pin header according to claim 4, It is characterized in that The power terminal comprises: a terminal screw, a terminal bracket, a terminal spring, and a terminal crimping frame.

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