CN215868585U - Display screen control board card and display screen control system - Google Patents
Display screen control board card and display screen control system Download PDFInfo
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- CN215868585U CN215868585U CN202121996575.5U CN202121996575U CN215868585U CN 215868585 U CN215868585 U CN 215868585U CN 202121996575 U CN202121996575 U CN 202121996575U CN 215868585 U CN215868585 U CN 215868585U
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Abstract
The utility model discloses a display screen control board card and a display screen control system. Wherein, display screen control integrated circuit board includes: the control chip is used for outputting target serial data to the display screen module, and the target serial data is used for driving a display screen in the display screen module to display; the first transmission interface comprises a first group of pins and a second group of pins, wherein the first group of pins are arranged between the control chip and the display screen module, the first group of pins are used for transmitting target serial data to the display screen module, the second group of pins are arranged between the power module and the display screen module, and the second group of pins are used for transmitting power signals output by the power module to the display screen module. The utility model solves the technical problems of large number of lines and complex connection caused by the fact that the receiving card transmits signals through the HUB interface.
Description
Technical Field
The utility model relates to the technical field of display, in particular to a display screen control board card and a display screen control system.
Background
In the display screen control system, a control chip on the receiving card can output a driving signal and transmit the driving signal to the LED display screen module through a HUB (multi-port repeater) interface so as to drive the LED display screen to display. In the correlation technique, the control chip of receiving card exports drive signal with parallel data's form, and the HUB interface need set up corresponding quantity's circuit and match drive signal, because drive signal and mains operated need transmit through mutually independent circuit, the HUB interface still need set up the power supply circuit who matches with mains operated, and then when leading to the receiving card to pass through HUB interface transmission signal, the circuit is more and connect complicacy.
Aiming at the problems that in the related art, the receiving card transmits signals through the HUB interface, so that the number of lines is large and the connection is complex, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a display screen control board card and a display screen control system, which are used for at least solving the technical problems of large circuit quantity and complex connection caused by the fact that a receiving card transmits signals through a HUB interface.
According to an aspect of the embodiments of the present invention, there is provided a display screen control board, including: the control chip is used for outputting target serial data to the display screen module, and the target serial data is used for driving a display screen in the display screen module to display; first transmission interface, including first group pin and second group pin, wherein, first group pin sets up between control chip and display screen module, first group pin is used for transmitting target serial data to the display screen module, second group pin sets up between power module and display screen module, second group pin is used for transmitting the power signal of power module output to the display screen module, realized under the prerequisite that does not influence the communication function between receiving card and the display screen module, the transmission line quantity between receiving card and the display screen module has been reduced, the wiring structure of keysets has been simplified.
Furthermore, the first transmission interface further comprises a clock signal transmission pin arranged between the control chip and the display screen module, wherein the clock signal transmission pin is used for transmitting a clock signal matched with the target serial data, and the display screen module can convert the serial data into parallel data according to the target serial data and the clock signal and then drive the display screen to display the parallel data.
Furthermore, the first group of pins comprise pins with the designated number, the pins with the designated number are used for transmitting different serial data, on one hand, the number of transmission lines is greatly reduced compared with a parallel transmission mode in the related technology, the size of an interface is reduced, and the miniaturization of the interface is facilitated.
Further, the first group of pins includes a data signal pin and a control signal pin, wherein the data signal pin is used for transmitting an image data signal, and the control signal pin is used for transmitting a control signal.
Furthermore, the first group of pins comprise a serial data sending pin and a serial data receiving pin, wherein the serial data sending pin is used for sending the target serial data to the display screen module, and the serial data receiving pin is used for receiving a return signal of the display screen module.
Furthermore, the serial data transmitting pin comprises a master transmitting and slave receiving pin of the serial peripheral device interface and is used for transmitting signals from the display screen control board card to the specified peripheral device in the display screen module, and the serial data receiving pin comprises a master transmitting and slave transmitting pin of the serial peripheral device interface and is used for receiving return signals of the specified peripheral device.
Furthermore, the target serial data is a low-voltage differential signal, the first group of pins at least comprises two pairs of low-voltage differential signal transmission pins, and the clock signal transmission pins comprise a pair of low-voltage differential signal transmission pins.
According to another aspect of the embodiments of the present invention, there is also provided a display screen control system, including: a display screen control board card; the display screen module comprises a second transmission interface matched with the first transmission interface, a serial deserializing module and a display screen; and the transmission line is used for transmitting the target serial data and the power supply signal to the second transmission interface, the deserializing module is arranged between the second transmission interface and the display screen, the deserializing module is used for converting the target serial data into parallel data, and the parallel data is used for driving the display screen to display.
Furthermore, the display screen module also comprises appointed peripheral equipment, the first transmission interface and the second transmission interface comprise matched serial peripheral equipment interface pins, and the serial peripheral equipment interface pins are used for transmitting control signals of the appointed peripheral equipment.
Furthermore, the first transmission interface and the second transmission interface are consistent with the hardware structure of the Type-C interface, the Type-C interface has a smaller size, the occupied area of the transmission interface is reduced, the transmission of driving signals and power signals of the receiving card and the display screen module is realized through the transmission line of the Type-C interface, and the wiring mode of the interface and the line between the receiving card and the display screen module is simplified.
In the embodiment of the utility model, the target serial data and the power supply signal which are used as the driving signals are integrated in the same interface for transmission, so that the number of transmission lines between the receiving card and the display screen module is reduced, the wiring structure of the adapter plate is simplified, and the technical problems of large number of lines and complex connection caused by the fact that the receiving card transmits signals through the HUB interface are solved on the premise of not influencing the communication function between the receiving card and the display screen module.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a schematic diagram of a display screen control system according to the prior art;
FIG. 2 is a schematic diagram of a display screen control board according to an embodiment of the utility model;
FIG. 3 is a schematic diagram of an alternative display screen control system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an alternative first transmission interface and a second transmission interface according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the related art, in a control system of a display screen, a control chip of a receiving card generally outputs a driving signal in the form of parallel data to drive a display screen module to display, fig. 1 is a schematic diagram of a display screen control system according to the prior art, as shown in fig. 1, the display screen control system 100 includes a switch board 101 and a receiving card 102 connected to the switch board 101, the receiving card 102 can output the driving signal and transmit the driving signal to the display screen module 103 through an interface on the switch board 101 (i.e., HUB) via a driving signal line 104, and the switch board 101 further needs an additional power line 105 to provide VCC and GND for the display screen module 103 to supply power. Therefore, the interface of the patch panel 101 needs to be provided with a plurality of lines for transmitting data signals and power signals, resulting in more lines and complicated connection.
In addition, along with the dot interval of display screen is littleer and smaller, the area of sola receiving card carries the size and is bigger and bigger, and then parallel data is more and more, and required control chip's IO resource amount is big more, and the HUB interface need set up more drive signal circuit and transmit drive signal, has increased the circuit quantity of HUB interface on the one hand, and on the other hand adopts parallel data transmission, and interference killing feature and transmission rate have the restriction.
In view of the above problem, an embodiment of the present invention provides an embodiment of a display screen control board, fig. 2 is a schematic diagram of a display screen control board according to an embodiment of the present invention, and as shown in fig. 2, a display screen control board 21 includes: the control chip 211 is configured to output target serial data to the display screen module 22, where the target serial data is used to drive the display screen 223 in the display screen module 22 to display; the first transmission interface 212 includes a first group of pins and a second group of pins, wherein the first group of pins is disposed between the control chip 211 and the display screen module 22, the first group of pins is used for transmitting the target serial data to the display screen module 22, the second group of pins is disposed between the power module 213 and the display screen module, and the second group of pins is used for transmitting the power signal output by the power module to the display screen module. The display screen module 22 includes a second transmission interface 221, a deserializing module 222 and a display screen 223.
Above-mentioned display screen control panel card can be for having the control panel card of communication connection relation with the display screen module, for example, display screen control panel card can be for the receiving card among the display screen control system, also can be for pegging graft keysets (HUB board) that have the receiving card. The first transmission interface can be directly arranged on the receiving card or arranged on the adapter plate, and the receiving card carries out data transmission with the display screen module through the first transmission interface of the adapter plate.
The control chip may be a main control chip on the receiving card, the control chip may be an FPGA (Field Programmable Gate Array) chip, or other control chips supporting a serial data communication protocol. The control chip can convert image data signals and control signals acquired from a sending card of the display screen control system into serial data to be output, and target serial data are obtained and transmitted to the display screen module and drive the display screen module to display.
The first group of pins and the second group of pins are respectively used for transmitting driving signals and power signals, and the transmission lines of the driving signals and the transmission lines of the power signals are packaged and integrated in the same interface, so that the line connection mode between the receiving card and the display screen module is simplified. The number of pins in the first group of pins and the second group of pins may be determined according to the respective signal types, and different numbers of pins may be set for different types, which is not limited herein.
The target Serial data may be data in a variety of Serial communication protocols, such as unart (Universal Asynchronous Receiver-Transmitter), SSI (Synchronous Serial Interface), SPI (Serial Peripheral Interface), and so on.
Above-mentioned power module is used for exporting power signal, power module can set up on receiving the card, also can set up in the keysets, also can set up in other integrated circuit boards outside receiving the card, power module's output is connected to in the first transmission interface, and transmit power signal VCC and GND to the display screen module through first transmission interface, and need not set up power transmission line alone, the interconnecting link quantity between receiving card or keysets and the display screen module has been reduced.
In an optional embodiment, fig. 3 is a schematic diagram of an optional display screen control system according to an embodiment of the present invention, as shown in fig. 3, a display screen control system 300 includes a switch board 301 provided with a receiving card 302, a display screen module 303 and a display screen module 304, the receiving card 302 is provided with a control chip and a power module, the switch board 301 is provided with a first transmission interface matched with the number of the display screen module, the display screen module 303 and the display screen module 304 are respectively provided with a second transmission interface matched with the first transmission interface, and the first transmission interface and the second transmission interface are connected by a transmission line. The first transmission interface is connected with the control chip and the power supply module, and transmits the driving signal and the power supply signal transmitted in series to the display screen module 304 through the transmission line 311 and the display screen module 303 through the transmission line 312 respectively, the display screen module 303 includes a deserializing module 313, the deserializing module 313 can convert the received serial data into parallel driving signals 316, the display screen module 304 includes a deserializing module 314, the deserializing module 314 can convert the received serial data into parallel driving signals 315, and the driving signals 316 and the driving signals 315 can drive the display screen to display.
In this embodiment, through will regard as drive signal's target serial data and power signal integration to transmit in same interface, realized not influencing under the prerequisite of the communication function between receiving card and the display screen module, reduced the transmission line quantity between receiving card and the display screen module, simplified the wiring structure of keysets, solved the receiving card and passed through HUB interface transmission signal, lead to the technical problem that circuit quantity is many and connect complicacy.
As an optional embodiment, the first transmission interface further includes a clock signal transmission pin disposed between the control chip and the display screen module, wherein the clock signal transmission pin is used for transmitting a clock signal matched with the target serial data.
Specifically, the first transmission interface can comprise a first group of pins for transmitting the target serial data and a clock signal transmission pin, the control chip can generate a clock signal matched with the target serial data while generating the target serial data, and the display screen module can convert the serial data into parallel data according to the target serial data and the clock signal and then drive the display screen to display.
Fig. 4 is a schematic diagram of an alternative first transmission interface and a second transmission interface according to an embodiment of the present invention, as shown in fig. 4, a first transmission interface 411 is an output interface of a display panel controller, a second transmission interface 412 is an input interface of a display panel module, the first transmission interface 411 and the second transmission interface 412 are connected by a transmission line, a first group of pins in the first transmission interface 411 includes pins Tx0-Tx2, the pins Tx0-Tx2 are respectively used for receiving target serial data B-D output by a control chip, the first transmission interface 411 further includes a clock signal transmission pin CLK for receiving a clock signal E output by the control chip, the second transmission interface 412 transmits the received target serial data B-D and the clock signal E to a serial deserializing module in the display panel module, the serial deserializing module converts the target serial data B-D and the clock signal E into parallel data, to drive the display screen to display.
As an alternative embodiment, the first set of pins includes a specified number of pins for transmitting different serial data.
The data output by the receiving card to the display screen module may include various signals such as image data signals, control signals, and data or control signals of other external devices, and the various signals may be transmitted through the same group of pins after being converted into serial data, or may be transmitted through different pins according to different signal types. The number of pins in the first group of pins may be determined according to the type number of the serial data.
For example, as shown in fig. 4, the first group of pins in the first transmission interface 411 may include three groups of pins Tx0, Tx1, and Tx2, which are used to transmit different types of serial signals, for example, the pin Tx0 may transmit a serial RGB image data signal, the pin Tx1 may transmit a serial control signal, the pin Tx2 may transmit a serial master signal (i.e., a master signal) of an external device, and three different types of serial data may be transmitted through the three groups of pins.
In this embodiment, the drive signal of controlling chip output converts multiunit serial data into and transmits, and the quantity of transmission line has significantly reduced than parallel transmission's among the relevant art mode on the one hand, reduces the volume of interface, is favorable to realizing the miniaturization of interface, and on the other hand has adopted multiunit serial data circuit to transmit, and the multiunit serial data of controlling chip output, compare the easier realization of the control chip who only outputs a set of serial data, and the cost is lower.
As an alternative embodiment, the first group of pins includes a data signal pin and a control signal pin, wherein the data signal pin is used for transmitting an image data signal, and the control signal pin is used for transmitting a control signal.
The image data signals may be RGB image data, and the control signals may include an output enable signal (i.e., oe signal), a latch signal (i.e., Lat signal), a global clock signal (i.e., gclk signal), decoding, and the like. The image data signals and the control signals are used as different types of data and can be transmitted by adopting two groups of different pins.
As an alternative embodiment, the first group of pins includes a serial data transmitting pin and a serial data receiving pin, wherein the serial data transmitting pin is used for transmitting the target serial data to the display screen module, and the serial data receiving pin is used for receiving the return signal of the display screen module.
For a serial interface supporting a transmission protocol of serial data, a serial data transmission pin (i.e., Tx pin) and a serial data reception pin (Rx pin) are included. For example, as shown in fig. 4, the first transmission interface 411 includes serial data transmitting pins Tx0, Tx1, and Tx2 for the control chip in the display panel control board to transmit a serial data signal to the display panel module, and further includes a serial data receiving pin Rx0 for receiving return data transmitted by the display panel module to the control chip in the display panel control board.
As an alternative embodiment, the serial data transmitting pin includes a master transmitting pin and a slave receiving pin of a serial peripheral device interface (i.e., an SPI interface) for transmitting signals from the display screen control board to a specified peripheral device in the display screen module, and the serial data receiving pin includes a master transmitting pin and a slave transmitting pin of the serial peripheral device interface for receiving return signals of the specified peripheral device.
The serial peripheral equipment interface can realize the communication of peripheral equipment in control chip and the display screen module, and above-mentioned appointed peripheral equipment can be for LED lamp plate or other driver IC in the display screen module, and the SPI interface pin in the first transmission interface of receiving card accessible realizes and appoints the communication between the peripheral equipment.
The SPI interface is used for data transmission between the master device master and the slave device slave, the master transmission slave reception pin is used for transmitting a master signal, i.e. a signal transmitted by the master device, and also is a MOSI (master output/slave input) signal to a specified peripheral device, the master reception slave transmission pin is used for receiving a slave signal of the specified peripheral device, i.e. a signal transmitted by the slave device, and also is a MISO (master input/slave output) signal, for example, the specified peripheral device may be an LED board in the display screen module, i.e. a control chip of the display screen control board is used as the master device, the LED board is used as the slave device, as shown in fig. 4, the serial data transmission pin Tx2 in the first transmission interface 411 may be used as the master transmission slave reception pin of the SPI interface for transmitting a control signal to the LED to light the LED, and the serial data reception pin Rx0 in the first transmission interface 411, the master receiving and slave sending pins can be used as SPI interfaces and used for receiving the slave signals of the LED lamp panel.
As an alternative embodiment, the target serial data is Low-Voltage Differential Signaling (LVDS), the first group of pins includes at least two pairs of Low-Voltage Differential Signaling pins, and the clock signal transmission pin includes a pair of Low-Voltage Differential Signaling pins.
For example, as shown in fig. 4, the target serial data output by the control chip of the display panel controller board is an LVDS signal, and each of the first transmission interface 411 and the second transmission interface 412 includes 5 pairs of LVDS signal pins, where each pair of LVDS signal pins includes 2 transmission lines. Specifically, the first group of pins may include three pairs of serial data transmitting pins Tx0, Tx1, and Tx2, and a pair of serial data receiving pins Rx0, where the pins Tx0, Tx1, and Tx2 may implement sending LVDS signals (i.e., signals B, C and D in fig. 4) output by the control chip to the display screen module, the pin Rx0 may receive a signal a sent by the display screen module, and the signal a may be a return signal of the display screen module, or a MISO signal of an LED lamp panel Flash in the display screen module. The first transmission interface 411 further includes a pair of pins CLK for transmitting the LVDS clock signal E. The pins Tx0, Tx1 and Tx2 may transmit different serial data, for example, three pairs of serial data transmission pins Tx0, Tx1 and Tx2 may transmit serial data converted by 21bits of parallel signals, specifically, the signal B transmitted by the pin Tx0 may include 5bit control signals (control signals such as Lat signal and gclk signal), the signal C transmitted by the pin Tx1 may include 12bit RGB data signals, the signal D transmitted by the pin Tx2 may include a master signal of 3bit SPI interface, and furthermore, the pin Rx0 may be used to receive Slave signal of 1bit SPI interface.
In addition, the 1-pair power signal lines in the first transmission interface 411 and the second transmission interface 412, and the 1-pair power signal lines may include a line transmitting a VCC signal and a line GND.
Compared with the mode of transmitting parallel data in the prior art, the embodiment transmits different types of data in a serial mode respectively, and the number of transmission lines is reduced. For example, in the prior art, the parallel data may include RGB data, SPI signals, and other control signals (such as clock signals, output enable signals, decoding, and the like), if the display screen module specification includes 4 sets of RGB data, 32 scans serial decoding, and supports the LED lamp panel Flash, if the data is transmitted through the HUB interface, at least 21 lines (where, the RGB data requires 12 lines, the control signals require 5 lines, and the SPI interface requires 4 lines) are required to transmit the data signals, and at least two lines are also required to transmit the power signals. After the embodiment is adopted, the same data volume is transmitted, only 5 pairs of LVDS data lines are needed, the same data as 21 parallel data lines can be transmitted, and the power circuit and the data signal circuit are transmitted through the same interface, so that the circuit quantity is greatly reduced, the wiring mode is simplified, and the communication stability and the transmission rate are enhanced.
According to an embodiment of the present invention, there is provided an embodiment of a display screen control system, including: a display screen control board card; the display screen module comprises a second transmission interface matched with the first transmission interface, a serial deserializing module and a display screen; and the transmission line is used for transmitting the target serial data and the power supply signal to the second transmission interface, the deserializing module is arranged between the second transmission interface and the display screen, the deserializing module is used for converting the target serial data into parallel data, and the parallel data is used for driving the display screen to display.
The deserializing module may be a deserializing chip disposed on the display screen module, and the deserializing chip may be any one of an FPGA chip, a CPLD (Complex Programmable Logic Device) chip, and a dedicated LVDS chip.
As shown in fig. 3, the display screen control system 300 includes a switch board 301 provided with a receiving card 302, and a display screen module 303 and a display screen module 304, the display screen module 303 includes a deserializing module 313, the deserializing module 313 can convert received serial data into parallel driving signals 316, the display screen module 304 includes a deserializing module 314, the deserializing module 314 can convert received serial data into parallel driving signals 315, and the driving signals 316 and the driving signals 315 can drive the display screen to display. The deserializing module 313 and the deserializing module 314 may be deserializing chips integrated in the display screen module, and implement serial-to-parallel conversion of the target serial data received by the second transmission interface and parallel-to-serial conversion of the return signal of the display screen module.
In an optional embodiment, the display screen module further includes a designated peripheral device, and the first transmission interface and the second transmission interface include matched serial peripheral device interface pins for transmitting a control signal of the designated peripheral device.
The serial peripheral equipment interface can realize the communication of peripheral equipment in control chip and the display screen module, and above-mentioned appointed peripheral equipment can be for LED lamp plate or other driver IC in the display screen module, and the SPI interface pin in the first transmission interface of receiving card accessible realizes and appoints the communication between the peripheral equipment.
In an alternative embodiment, the first transmission interface and the second transmission interface are both consistent with the hardware structure of the Type-C interface.
The data protocol Type of the data protocol Type is consistent with the hardware structure of the Type-C interface, namely consistent with the hardware structures such as the pin position, the number and the size of the Type-C interface, but the definition of each pin is different from that of the Type-C interface so as to support the data protocol Type different from that of the Type-C interface. In this embodiment, can adopt the hardware architecture of Type-C interface, transmission protocol and power signal's transmission mode based on serial data defines its pin, all integrate data signal transmission line and power signal circuit in Type-C interface with the realization, Type-C interface has less volume, the area occupied of transmission interface has been reduced, the transmission of receiving card and display screen module driving signal and power signal is realized to the transmission line through a Type-C interface, the mode of connection of interface and circuit between receiving card and the display screen module has been simplified.
The Type-C interface is used as an interface in the field of intelligent terminals, large-batch production is already obtained, and the cost of a receiving card, a transfer board and a display screen module can be reduced by adopting a first transmission interface and a second transmission interface which are consistent with the hardware structure of the Type-C interface.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, 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.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a display screen control integrated circuit board which characterized in that includes:
the control chip is used for outputting target serial data to the display screen module, and the target serial data is used for driving a display screen in the display screen module to display;
the first transmission interface comprises a first group of pins and a second group of pins, wherein the first group of pins are arranged between the control chip and the display screen module, the first group of pins are used for transmitting the target serial data to the display screen module, the second group of pins are arranged between the power module and the display screen module, and the second group of pins are used for transmitting the power signals output by the power module to the display screen module.
2. The display screen control board of claim 1,
the first transmission interface further comprises a clock signal transmission pin arranged between the control chip and the display screen module, wherein the clock signal transmission pin is used for transmitting a clock signal matched with the target serial data.
3. The display screen control board of claim 2,
the first set of pins includes a specified number of pins for transmitting different serial data.
4. The display screen control board of claim 3,
the first group of pins comprise a data signal pin and a control signal pin, wherein the data signal pin is used for transmitting an image data signal, and the control signal pin is used for transmitting a control signal.
5. The display screen control board of claim 3,
the first group of pins comprise a serial data sending pin and a serial data receiving pin, wherein the serial data sending pin is used for sending the target serial data to the display screen module, and the serial data receiving pin is used for receiving a return signal of the display screen module.
6. The display screen control board of claim 5,
the serial data transmitting pin comprises a main transmitting and secondary receiving pin of a serial peripheral device interface and is used for transmitting signals from the display screen control board card to the appointed peripheral device in the display screen module, and the serial data receiving pin comprises a main transmitting and secondary transmitting pin of the serial peripheral device interface and is used for receiving return signals of the appointed peripheral device.
7. The display screen control board of claim 3,
the target serial data is a low-voltage differential signal, the first group of pins at least comprises two pairs of low-voltage differential signal transmission pins, and the clock signal transmission pins comprise a pair of low-voltage differential signal transmission pins.
8. A display screen control system, comprising:
the display screen control board of any one of claims 1 to 7;
the display screen module comprises a second transmission interface matched with the first transmission interface, a serial deserializing module and a display screen;
a transmission line connecting the first transmission interface and the second transmission interface, the transmission line being configured to transmit the target serial data and the power supply signal to the second transmission interface,
the deserializing module is arranged between the second transmission interface and the display screen, and is used for converting the target serial data into parallel data which is used for driving the display screen to display.
9. The display screen control system of claim 8,
the display screen module further comprises appointed peripheral equipment, the first transmission interface and the second transmission interface comprise matched serial peripheral equipment interface pins, and the serial peripheral equipment interface pins are used for transmitting control signals of the appointed peripheral equipment.
10. The display screen control system of claim 8,
the first transmission interface and the second transmission interface are consistent with the hardware structure of the Type-C interface.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024041575A1 (en) * | 2022-08-23 | 2024-02-29 | 深圳利亚德光电有限公司 | Signal transmission method and apparatus, led control apparatus and led display module |
| WO2024098298A1 (en) * | 2022-11-09 | 2024-05-16 | 西安诺瓦星云科技股份有限公司 | Led displaying control method, led display screen, control system therefor, and corresponding assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041575A1 (en) * | 2022-08-23 | 2024-02-29 | 深圳利亚德光电有限公司 | Signal transmission method and apparatus, led control apparatus and led display module |
| WO2024098298A1 (en) * | 2022-11-09 | 2024-05-16 | 西安诺瓦星云科技股份有限公司 | Led displaying control method, led display screen, control system therefor, and corresponding assembly |
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