CN112735323A - Adapter plate and display device - Google Patents
Adapter plate and display device Download PDFInfo
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- CN112735323A CN112735323A CN201910969543.7A CN201910969543A CN112735323A CN 112735323 A CN112735323 A CN 112735323A CN 201910969543 A CN201910969543 A CN 201910969543A CN 112735323 A CN112735323 A CN 112735323A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Traffic Control Systems (AREA)
Abstract
The embodiment of the invention relates to an adapter plate and a display device adopting the adapter plate. The interposer includes, for example: a circuit board; a receiving card connector disposed on the circuit board; and a plurality of wireless transmitters arranged on the circuit board and electrically connected with the receiving card connector. Each of the wireless transmitters includes: the simplex wireless transmitting chip is electrically connected with the receiving card connector through a serial bus on the circuit board, and is used for receiving the display data and the control signal input by the receiving card connector, converting the display data and the control signal from an electric signal form into an electromagnetic signal form and transmitting the electromagnetic signal form. The working frequency of the simplex wireless transmitting chip is positioned in a millimeter wave frequency band.
Description
Technical Field
The invention relates to the technical field of data transmission and display, in particular to an adapter plate and a display device.
Background
In the industry of LED display screen control systems, a patch panel is connected with an LED module through a flat cable so as to provide display data and control signals for the LED module. The display data and control signals herein include, for example, RGB data groups and control signals such as row selection signals, clock signals, latch signals, enable signals, and even line blanking control signals. However, the wired connection method is prone to poor connection of the connectors, and also causes great inconvenience to installation work and subsequent maintenance of workers.
Disclosure of Invention
To overcome the defects and shortcomings in the related art, embodiments of the present invention provide an interposer and a display device.
On one hand, an interposer provided by an embodiment of the present invention includes: a circuit board; a receiving card connector disposed on the circuit board; and a plurality of wireless transmitters arranged on the circuit board and electrically connected with the receiving card connector. Wherein each of the wireless transmitters comprises: the simplex wireless transmitting chip is electrically connected with the receiving card connector through a serial bus on the circuit board, and is used for receiving the display data and the control signal input by the receiving card connector, converting the display data and the control signal from an electric signal form into an electromagnetic signal form and transmitting the electromagnetic signal form; the working frequency of the simplex wireless transmitting chip is located in a millimeter wave frequency band.
The adapter plate of the embodiment is provided with the simplex wireless transmitting chip to realize wireless transmission of display data and control signals, and can realize wireless data transmission with the display module at lower cost; moreover, the simplex wireless transmitting chip works in a millimeter wave frequency band, so that the possibility of wireless signal crosstalk can be greatly reduced.
In one embodiment of the present invention, each of the wireless transmitters further comprises: the simplex wireless receiving chip is arranged on the circuit board at an interval with the simplex wireless transmitting chip and is electrically connected with the receiving card connector through a serial bus; and the working frequency of the simplex wireless receiving chip is positioned in a millimeter wave frequency band.
In one embodiment of the invention, the simplex wireless transmitting chip of the wireless transmitter is electrically connected with the receiving card connector through a SerDes bus.
In one embodiment of the invention, the simplex wireless transmitting chip is electrically connected with the receiving card connector through an SGMII bus.
In one embodiment of the present invention, each of the wireless transmitters further comprises: the half-duplex wireless transmitting and receiving chip is arranged on the circuit board at an interval with the simplex wireless transmitting chip, and the working frequency of the half-duplex wireless transmitting and receiving chip is positioned in a millimeter wave frequency band; the simplex wireless transmitting chip is electrically connected with the receiving card connector through a first serial bus, the half-duplex wireless transmitting and receiving chip is electrically connected with the receiving card connector through a second serial bus, and the data transmission rate of the first serial bus is higher than that of the second serial bus.
In one embodiment of the invention, each of the wireless transmitters further comprises a first wave-absorbing material element and a second wave-absorbing material element; the first wave absorbing material element is fixed on the circuit board and arranged around the simplex wireless transmitting chip; and the second wave-absorbing material element is fixed on the circuit board and arranged around the simplex wireless receiving chip.
In one embodiment of the invention, the simplex wireless transmitting chip is eccentrically arranged in the central hole of the first wave-absorbing material element, and the simplex wireless receiving chip is eccentrically arranged in the central hole of the second wave-absorbing material element; the distance between the geometric center of the simplex wireless transmitting chip and the geometric center of the simplex wireless receiving chip is larger than or equal to 10 millimeters.
In another aspect, a display device provided in an embodiment of the present invention includes: a frame having a module mounting surface and an accommodating space located at a back side of the module mounting surface; the adapter plate is arranged in the accommodating space; the receiving card is inserted and fixed to the receiving card connector to form electric connection with the adapter plate; and the display modules are arranged on the module mounting surface, each display module is provided with a second wireless transmitter, and the working frequency of each second wireless transmitter is positioned in a millimeter wave frequency band and is used for receiving the display data and the control signal in the form of an electromagnetic signal sent by a corresponding wireless transmitter in the plurality of wireless transmitters of the adapter plate, and converting the display data and the control signal in the form of the received electromagnetic signal into an electric signal form to drive and control the display modules to display.
The adapter plate and the display module in the display device of the embodiment are in data communication in a wireless transmission mode, so that the connection between the adapter plate and the display module can be simplified, and the installation convenience is improved; in addition, the wireless chip works in a millimeter wave frequency band, so that the possibility of wireless signal crosstalk can be greatly reduced.
In an embodiment of the present invention, each of the display modules further includes: a second circuit board; an LED array disposed on the second circuit board; the row driving circuit is arranged on the second circuit board and is electrically connected with the LED array; the column driving circuit is arranged on the second circuit board and is electrically connected with the LED array; the signal processor is arranged on the second circuit board, is electrically connected with the row driving circuit and the column driving circuit, and is also electrically connected with the second wireless transmitter through a serial bus; wherein the second wireless transmitter is disposed on the second circuit board and includes: the second simplex wireless receiving chip and a second simplex wireless transmitting chip or a half-duplex wireless receiving and transmitting chip are arranged at intervals with the second simplex wireless receiving chip; and the working frequency of the second simplex wireless receiving chip is positioned in a millimeter wave frequency band, and the working frequency of the second simplex wireless transmitting chip or the half-duplex wireless receiving and transmitting chip is positioned in the millimeter wave frequency band.
In one embodiment of the present invention, the receiving card includes: a third circuit board; the second connector is arranged on the third circuit board and is fixedly inserted with the receiving card connector; the second programmable logic device is arranged on the third circuit board and is electrically connected with the second connector; the microcontroller is arranged on the third circuit board and is electrically connected with the second programmable logic device and the second connector; and an Ethernet physical layer transceiver group electrically connected between the second programmable logic device and the second connector.
In summary, the above technical solutions of the embodiments of the present invention may have one or more of the following advantages: the adapter plate is in data communication with the display module in a wireless transmission mode, and can abandon the mode of using a flat cable to connect the display module to transmit display data and control signals in the prior art, thereby achieving the purposes of simplifying connection and improving installation convenience. Moreover, the wireless transmitter adopts a simplex wireless transmitting chip, which can realize the wireless transmission of the display data and the control signal with lower cost. In addition, the wireless chip works in a millimeter wave frequency band, so that the possibility of wireless signal crosstalk can be greatly reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that 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 these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a connection relationship between an interposer and a plurality of display modules in the display device shown in fig. 1.
Fig. 3 is a schematic structural diagram of the wireless transmitter shown in fig. 2.
Fig. 4 is a schematic block diagram of the display module shown in fig. 2.
Fig. 5 is a block diagram of the receiving card shown in fig. 1.
Fig. 6 is a schematic view illustrating another connection relationship between the interposer and a plurality of display modules in the display device shown in fig. 1.
Fig. 7 is a schematic block diagram of the display module shown in fig. 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1, a display device 10 according to an embodiment of the present invention includes: the display module comprises a frame 11, an adapter plate 13, a plurality of display modules 15 and a receiving card 17. Wherein, the frame 11 has a module mounting surface 110 and an accommodating space 112 located at the back side of the module mounting surface 110; each display module 15 is disposed on the module mounting surface 110, and the adapter plate 13 and the receiving card 17 are disposed in the accommodating space 112. In this embodiment, the assembly of the adapter board 13 and the receiving card 17 is used as a specific implementation of the module controller.
Referring to fig. 2, the interposer 13 of the present embodiment includes: circuit board 131, receiving card connector 133, plurality of wireless transmitters 135, and ethernet interface group 137. The receiving card connector 133 is used for connecting the receiving card 17, and is, for example, a high-contact connector using two same Pin number connectors arranged in pairs, such as two 120Pin connectors; of course, other types of connectors may be used as long as they enable an electrical or even mechanical connection between the receiving card 17 and the adapter plate 13. The plurality of wireless transmitters 135 are respectively disposed on the circuit board 131 and are each electrically connected to the receiving card connector 133 through a SerDes bus including two pairs of differential signal lines, one pair of which is used for data transmission and the other pair of which is used for data reception; the SerDes bus herein employs a Signal format such as LVDS (Low Voltage Differential Signal). This connection to the wireless transmitter 135 using differential signal line pairs may effectively increase the rate and stability of data transmission. An ethernet interface set 137 is disposed on the circuit board 131 and electrically connected to the receiving card connector 133, and includes, for example, two or more RJ45 ports integrated with the network cable, or an RJ45 port and network cable separated structure. Furthermore, the plurality of display modules 15 are respectively provided with a wireless transmitter 155, each wireless transmitter 155 performs wireless data communication with a corresponding wireless transmitter 135 on the adapter plate 13, for example, the wireless transmitter 135 is used for converting display data and control signals in the form of electrical signals into display data and control signals in the form of electromagnetic signals, and then transmitting the display data and control signals in the form of electromagnetic signals to the corresponding wireless transmitter 155 of the display module 15, where the display data and control signals include, for example, RGB data sets and row selection signals, clock signals (CLK), latch signals (LAT), enable signals (OE), and even control signals such as row blanking control signals. It should be noted that the wireless transmitter 135 is not limited to be electrically connected to the receiving card connector 133 through a SerDes bus, and other Serial buses, such as a Serial Gigabit Media Independent Interface (SGMII) bus, may be used.
Referring to fig. 3, the single wireless transmitter 135 includes, for example, a simplex wireless reception chip Rx and a simplex wireless transmission chip Tx. The working frequency of the simplex wireless receiving chip Rx and the simplex wireless transmitting chip Tx are positioned in a millimeter wave frequency band. The millimeter wave band herein typically means a frequency range of 30GHz to 300GHz with a corresponding wavelength of 1 mm to 10 mm. The simplex wireless transmitting chip Tx and the simplex wireless receiving chip Rx working in the millimeter wave band in this embodiment are very suitable for the application of the display device 10 in the LED display screen, because the single display device 10 is typically formed by splicing a plurality of display modules 15, when the wireless transmitter 135 is installed in the display device 10, the problem of how to avoid the wireless signal crosstalk between two wireless transmitters 135 that do not need to transmit and receive data in the same display device 10 is considered first, and the simplex wireless transmitting chip Tx and the simplex wireless receiving chip Rx working in the millimeter wave band in this embodiment can greatly reduce the possibility of the wireless signal crosstalk compared to the WiFi module, the bluetooth module, and the UWB communication module in the prior art. Furthermore, based on the performance of the wireless chip and the easy availability of the frequency band, in this embodiment, it is preferable that the millimeter wave frequency band in which the simplex wireless transmitting chip Tx operates is 57GHZ-67GHZ or 71GHZ-87GHZ, for example, the simplex wireless transmitting chip Tx operates at 60GHZ or 80 GHZ; similarly, the millimeter wave frequency band of the simplex wireless receiving chip Rx is 57GHZ-67GHZ or 71GHZ-87GHZ, for example, the simplex wireless receiving chip Rx operates at 60GHZ or 80 GHZ. In addition, it is worth mentioning that the present embodiment performs the data wireless transmission and the data wireless reception by two independent chips, which can effectively ensure the stability and reliability of data reception and transmission.
In fig. 3, the simplex wireless transmitting chip Tx and the simplex wireless receiving chip Rx are disposed on the circuit board 131 at an interval, and as a non-limiting example, the simplex wireless transmitting chip Tx and the simplex wireless receiving chip Rx of the present embodiment may use a commercially available KSS104M series chip or KQG104-B3 series chip, or may use other simplex wireless transmitting and simplex wireless receiving chips suitable for operating in the millimeter wave band. Furthermore, it is found through experiments that the distance L1 between the geometric center of the simplex wireless transmitting chip Tx and the geometric center of the simplex wireless receiving chip Rx is preferably greater than or equal to 10 mm, for example, 15 mm, so as to reduce the crosstalk between the simplex wireless transmitting chip Tx and the simplex wireless receiving chip Rx as much as possible and ensure good wireless communication. In addition, the wave-absorbing material elements 135a and 135b can further reduce the signal crosstalk between the simplex wireless transmitting chip Tx and the simplex wireless receiving chip Rx, and enhance the wireless communication capability of the chips. The wave-absorbing material element 135a is fixed on the circuit board 131 and disposed around the simplex wireless receiving chip Rx, and preferably, in order to prevent the antenna signal affecting the internal antenna of the simplex wireless receiving chip Rx, the simplex wireless receiving chip Rx is eccentrically disposed in the central hole of the wave-absorbing material element 135a, that is, the simplex wireless receiving chip Rx is not centrally disposed, for example, a distance D1 is left on a side close to the chip antenna as shown in fig. 3; of course, other sides of the chip may be spaced relative to the wave-absorbing material element 135 a. The wave-absorbing material element 135a of this embodiment is made of Lidar JCS-9 type wave-absorbing material, for example. Similarly, the wave-absorbing material element 135b is fixed on the circuit board 131 and disposed around the simplex wireless transmitting chip Tx, and preferably, in order to prevent the antenna signal affecting the internal antenna of the simplex wireless transmitting chip Tx, the simplex wireless transmitting chip Tx is disposed eccentrically in the central hole of the wave-absorbing material element 135b, i.e. the simplex wireless transmitting chip Tx is not disposed centrally, for example, a distance D2 is left at a side close to the chip antenna as shown in fig. 3; of course, other sides of the chip may be spaced relative to the wave-absorbing material element 135 b. The wave-absorbing material element 135b of this embodiment is made of, for example, Lidar JCS-9 type wave-absorbing material.
Referring to fig. 4, the display module 15 of the present embodiment includes, for example: a circuit board 151 and an LED array 150, a programmable logic device 153, the aforementioned wireless transmitter 155, a row drive circuit 157, and a column drive circuit 159, which are disposed on the circuit board 151. The LED array 150 is, for example, a Passive Matrix (Passive Matrix) LED array, such as a LED lamp including a plurality of row lines, a plurality of column lines, and a plurality of LED lamps electrically connecting the plurality of row lines and the plurality of column lines; the row driver circuit 157 is electrically connected to the plurality of row lines, which may comprise, for example, 3-8 decoder chips; the column driving circuit 39 is electrically connected to the plurality of column lines, and includes, for example, a constant current source driving chip. The wireless transmitter 155 is electrically connected to the programmable logic device 153, which is electrically connected to a SerDes interface configured by the programmable logic device 153, for example, via a SerDes bus. As for the specific structure of the wireless transmitter 155, reference may be made to fig. 3, which includes a simplex wireless receiving chip and a simplex wireless transmitting chip that are arranged at an interval, and even further includes a wave-absorbing material element that is arranged around the simplex wireless receiving chip and a wave-absorbing material element that is arranged around the simplex wireless transmitting chip, and details are not repeated here. Furthermore, the Programmable logic device 153 is electrically connected to a row driver circuit 157 and a column driver circuit 159, which are, for example, FPGA (Field Programmable Gate Array) devices. In addition, the wireless transmitter 155 is specifically configured to receive the display data and the control signal in the form of an electromagnetic signal sent by a corresponding one of the wireless transmitters 135 on the adapter board 13, convert the received display data and the control signal in the form of an electromagnetic signal into the display data and the control signal in the form of an electrical signal, and provide the display data and the control signal to the programmable logic device 153 to drive and control the LED array 150 of the display module 15 through the row driving circuit 157 and the column driving circuit 159 for displaying. It should be noted here that the LED array 150 of the present embodiment is not limited to the passive matrix type, and may be an active matrix type; even the display module 15 of the present embodiment is not limited to the LED display module shown in fig. 4. It should be noted that the wireless transmitter 155 is not limited to be electrically connected to the programmable logic device 153 through a SerDes bus, and other serial buses, such as an SGMII bus, may be used. Furthermore, the programmable logic device 153 may be replaced by other signal processors, such as a dedicated chip like an ASIC chip.
Referring to fig. 5, the receiving card 17 of the present embodiment includes, for example: circuit board 171 and programmable logic device 173, ethernet physical layer transceiver group 175, connector 177 and microcontroller 179 disposed on circuit board 171. Programmable logic device 173 is disposed on circuit board 171 and is, for example, an FPGA device, which electrically connects ethernet physical layer transceiver group 175, connector 177, and microcontroller 179, and can output display data and control signals in the form of electrical signals through connector 177. An ethernet physical layer transceiver 175 is electrically connected between the programmable logic device 173 and the connector 177, for example comprising two or even more ethernet physical layer transceiver chips such as type 1GBase-T, 2.5GBase-T, 5GBase-T or 10GBase-T ethernet physical layer transceiver chips, or comprising one multi-port ethernet physical layer transceiver chip, or a combination of both. The connector 177 is adapted to connect to a receiving card connector 133 on the interposer 13, such as two identical Pin count connectors arranged in pairs, e.g., two 120Pin high-contact connectors. The microcontroller 179 is electrically connected to a connector 177, for example using a commercially available STM32 series MCU chip, which can be used to program the programmable logic device 173 at power up. In addition, it is understood that the circuit board 171 of the receiving card 17 may not be provided with the microcontroller 179, but may be externally connected with an embedded processor such as an ARM processor through the connector 177 to implement program loading when the programmable logic device 173 is powered on.
Furthermore, it should be noted that in other embodiments, the ethernet physical layer transceiver 175 may not be connected to the connector 177, and accordingly the ethernet interface group 137 may not be disposed on the transfer board 13, but the ethernet interface group 137 is directly disposed on the circuit board 171 of the receiving card 17. Alternatively, the ethernet interface group provided on the circuit board 171 of the receiving card 17 may be changed to another interface type, for example, a micro USB3.0 interface or a Mini HDMI interface.
In addition, in other embodiments, the circuit components on the circuit board 171 of the receiving card 17 may all be directly integrated on the circuit board 131 of the interposer 13, so that the module controller of the embodiment of the present invention adopts a single circuit board structure, instead of a multi-circuit board structure in which the interposer 13 and the receiving card 17 are combined as shown in fig. 1.
Referring to fig. 6, in other embodiments, each wireless transmitter 135 on the patch panel 13 is electrically connected to the receiving card connector 133 through a high speed serial bus and a low speed serial bus. Specifically, the single wireless transmitter 135 includes a simplex wireless transmitting chip and a half-duplex wireless receiving and transmitting chip arranged at intervals, and the working frequency is located in the millimeter wave frequency band; the simplex wireless transmitting chip is electrically connected to the receiving card connector 133 through the high-speed serial bus such as a SerDes bus or an SGMII bus, and the half-duplex wireless transmitting and receiving chip is electrically connected to the receiving card connector 133 through the low-speed serial bus such as an I2C, SPI, or UART bus. In this way, the receiving card plugged into the receiving card connector 133 can send the display data and the control signal to the corresponding display module 15 through the simplex wireless sending chip in the wireless transmitter 135 via the high-speed serial bus, and can perform interaction of other data and commands with the corresponding display module 15 through the half-duplex wireless receiving and sending chip in the wireless transmitter 135 via the low-speed serial bus, such as receiving the upload data from the display module 15 and/or sending the control command to the display module 15.
Fig. 7 is a schematic block diagram of the display module 15 shown in fig. 6. As shown in fig. 7, the wireless transmitter 155 of the display module 15 is electrically connected to the programmable logic device 153 such as FPGA through a high-speed serial bus (such as SerDes bus or SGMII bus) and to the microcontroller 154 such as MCU chip through a low-speed serial bus (such as I2C, SPI, or UART bus). More specifically, the wireless transmitter 155 includes a simplex wireless receiving chip and a half-duplex wireless transceiving chip arranged at intervals, and the operating frequency is located in the millimeter wave frequency band; the simplex wireless receiving chip is electrically connected to the programmable logic device 153, and the half-duplex wireless receiving and transmitting chip is electrically connected to the microcontroller 154. In this embodiment, the microcontroller 154 is used as an intelligent device of the display module 15, and can acquire the working voltage and the working temperature detected by the detection circuit on the display module 15, and even the data such as the LED lamp point inspection result, and upload the data to the adapter card 13 through the half-duplex wireless transceiver chip in the wireless transmitter 155.
In summary, the adapter board/module controller of the foregoing embodiment of the invention performs data communication with the display module in a wireless transmission manner, which can eliminate the manner of using a flat cable to connect the display module for transmitting display data and control signals in the prior art, thereby achieving the purposes of simplifying connection and improving installation convenience. Moreover, the wireless transmitter adopts a simplex wireless transmitting chip and a simplex wireless receiving chip which are mutually spaced, and data transmission and data reception are respectively executed by different chips, so that the stability and the reliability of data transmission and data reception can be effectively ensured; or the wireless transmitter adopts a simplex wireless transmitting chip and a half-duplex wireless receiving and transmitting chip which are mutually separated, and the bidirectional data interaction can be realized with lower chip cost. In addition, the chips work in a millimeter wave frequency band, so that the possibility of wireless signal crosstalk can be greatly reduced.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention. In addition, the wireless transmitter 135 in the foregoing embodiment of the invention may also be provided with only a simplex wireless transmitting chip without a simplex wireless receiving chip or a half-duplex wireless transceiving chip, and similarly, the wireless transmitter 155 may also be provided with only a simplex wireless receiving chip without a simplex wireless transmitting chip or a half-duplex wireless transceiving chip, which can also achieve the purpose of driving and controlling the display module 15 to display images.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art 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. An interposer, comprising:
a circuit board;
a receiving card connector disposed on the circuit board; and
a plurality of wireless transmitters disposed on the circuit board and electrically connected to the receiving card connector, wherein each of the wireless transmitters includes:
the simplex wireless transmitting chip is electrically connected with the receiving card connector through a serial bus on the circuit board, and is used for receiving the display data and the control signal input by the receiving card connector, converting the display data and the control signal from an electric signal form into an electromagnetic signal form and transmitting the electromagnetic signal form; the working frequency of the simplex wireless transmitting chip is located in a millimeter wave frequency band.
2. The patch panel of claim 1, wherein each of said wireless transmitters further comprises:
the simplex wireless receiving chip is arranged on the circuit board at an interval with the simplex wireless transmitting chip and is electrically connected with the receiving card connector through a serial bus; and the working frequency of the simplex wireless receiving chip is positioned in a millimeter wave frequency band.
3. The patch panel of claim 1, wherein the wireless transmitter the simplex wireless transmit chip is electrically connected to the receive card connector via a SerDes bus.
4. The patch panel of claim 1 wherein said simplex wireless transmit chip is electrically connected to said receive card connector via an SGMII bus.
5. The patch panel of claim 1, wherein each of said wireless transmitters further comprises:
the half-duplex wireless transmitting and receiving chip is arranged on the circuit board at an interval with the simplex wireless transmitting chip, and the working frequency of the half-duplex wireless transmitting and receiving chip is positioned in a millimeter wave frequency band;
the simplex wireless transmitting chip is electrically connected with the receiving card connector through a first serial bus, the half-duplex wireless transmitting and receiving chip is electrically connected with the receiving card connector through a second serial bus, and the data transmission rate of the first serial bus is higher than that of the second serial bus.
6. The patch panel of claim 2, wherein each of said wireless transmitters further comprises a first and a second wave absorbing material element; the first wave absorbing material element is fixed on the circuit board and arranged around the simplex wireless transmitting chip; and the second wave-absorbing material element is fixed on the circuit board and arranged around the simplex wireless receiving chip.
7. The interposer as recited in claim 6 wherein said simplex wireless transmitting chip is eccentrically positioned within said central aperture of said first wave absorbing material element and said simplex wireless receiving chip is eccentrically positioned within said central aperture of said second wave absorbing material element; the distance between the geometric center of the simplex wireless transmitting chip and the geometric center of the simplex wireless receiving chip is larger than or equal to 10 millimeters.
8. A display device, comprising:
a frame having a module mounting surface and an accommodating space located at a back side of the module mounting surface;
the adapter plate of any one of claims 1 to 7, disposed within the receiving space;
the receiving card is inserted and fixed to the receiving card connector to form electric connection with the adapter plate;
the display module comprises a plurality of display modules, wherein each display module is provided with a second wireless transmitter, the working frequency of each second wireless transmitter is located in a millimeter wave frequency band and used for receiving the display data and the control signal in the form of an electromagnetic signal sent by a corresponding wireless transmitter in the plurality of wireless transmitters of the adapter plate, and the display data and the control signal in the form of the received electromagnetic signal are converted into an electric signal form to drive and control the display module to display.
9. The display device of claim 8, wherein each of the display modules further comprises:
a second circuit board;
an LED array disposed on the second circuit board;
the row driving circuit is arranged on the second circuit board and is electrically connected with the LED array;
the column driving circuit is arranged on the second circuit board and is electrically connected with the LED array; and
the signal processor is arranged on the second circuit board and electrically connected with the row driving circuit and the column driving circuit, and is also electrically connected with the second wireless transmitter through a serial bus;
wherein the second wireless transmitter is disposed on the second circuit board and includes: the second simplex wireless receiving chip and a second simplex wireless transmitting chip or a half-duplex wireless receiving and transmitting chip are arranged at intervals with the second simplex wireless receiving chip; and the working frequency of the second simplex wireless receiving chip is positioned in a millimeter wave frequency band, and the working frequency of the second simplex wireless transmitting chip or the half-duplex wireless receiving and transmitting chip is positioned in the millimeter wave frequency band.
10. The display device according to claim 8 or 9, wherein the reception card includes:
a third circuit board;
the second connector is arranged on the third circuit board and is fixedly inserted with the receiving card connector;
the programmable logic device is arranged on the third circuit board and is electrically connected with the second connector;
the microcontroller is arranged on the third circuit board and is electrically connected with the programmable logic device and the second connector; and
an Ethernet physical layer transceiver set electrically connected between the programmable logic device and the second connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910969543.7A CN112735323A (en) | 2019-10-12 | 2019-10-12 | Adapter plate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910969543.7A CN112735323A (en) | 2019-10-12 | 2019-10-12 | Adapter plate and display device |
Publications (1)
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