CN217508931U

CN217508931U - Signal transmission device

Info

Publication number: CN217508931U
Application number: CN202221346688.5U
Authority: CN
Inventors: 宋林杰
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-27
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to a transmission device of signal. The device comprises: the display module comprises a signal processing assembly, a first signal conversion assembly, a second signal conversion assembly and a display module; the signal processing assembly is electrically connected with the signal source and receives display parameters provided by the signal source and image data to be transmitted; the first signal conversion component is electrically connected with the signal processing component and is used for converting the image format of the image data into a first signal format; the second signal conversion component is electrically connected with the signal processing component and the first signal conversion component and is used for converting the first signal format of the image data into a second signal format, wherein the transmission loss rate of the first signal format is lower than that of the second signal format; the display module is electrically connected with the second signal conversion assembly and used for displaying image data. By adopting the device, the lossless transmission of signals under the long-distance connecting line can be realized, so that the module can be normally lightened and an image can be displayed.

Description

Signal transmission device

Technical Field

The utility model relates to a signal processing technology field especially relates to a transmission device of signal.

Background

With the development of signal display technology, the resolution and screen refresh rate of the existing LCD module and OLED module become higher and higher, which means that the amount of data transmitted on the MIPI DPHY interface on the module will become larger and larger.

The quality requirement for the signal connection line is higher when the amount of data to be transmitted is larger, and the attenuation of the signal is more pronounced during transmission through the signal connection line. However, in some existing LCD module devices and OLED module devices, in order to light a plurality of screens at the same time, a long connection line is usually required, so that loss is generated in the signal transmission process, and finally, the screens cannot be normally lighted.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a signal transmission device for solving the problem that the screen cannot be normally lighted due to the signal transmission loss caused by a long connection line.

The embodiment provides a signal transmission device, which comprises:

the display module comprises a signal processing assembly, a first signal conversion assembly, a second signal conversion assembly and a display module;

the signal processing assembly is electrically connected with a signal source and receives display parameters provided by the signal source and image data to be transmitted;

the first signal conversion assembly is electrically connected with the signal processing assembly and is used for converting the image format of the image data into a first signal format;

the second signal conversion component is electrically connected with the signal processing component and the first signal conversion component, and is configured to receive the display parameter and the image data, and convert a first signal format of the image data into a second signal format, where a transmission loss rate of the first signal format is lower than that of the second signal format;

the display module is electrically connected with the second signal conversion component and used for receiving the image data in the second signal format and displaying the image data.

In one embodiment, the length of a connection line between the second signal conversion module and the display module is smaller than a preset length value.

In one embodiment, the first signal format is a DP signal format, and the first signal conversion device and the second signal conversion device are electrically connected through a DP connection line.

In one embodiment, the DP connection line is an optical fiber DP connection line.

In one embodiment, the second signal format is an MIPI signal format, and the second signal conversion module is electrically connected to the display module through an MIPI connection line.

In one embodiment, the second signal conversion component is an IT6510 chip.

In one embodiment, the apparatus further comprises:

and the first signal conversion component receives the display parameters and configures a signal output mode to be in a first signal format according to the display parameters for output.

In one embodiment, the display parameters include module power parameters, and the device further includes a power supply component electrically connected to the signal processing component, the first signal conversion component, the second signal conversion component, and the display module, for receiving the module power parameters and outputting a power value matched with the module power parameters to the display module.

In one embodiment, the apparatus further comprises:

the first memory component is electrically connected with the signal processing component and is used for storing data generated by the signal processing component in the signal transmission process;

and the storage component is electrically connected with the signal processing component and is used for storing data generated by the device in the signal transmission process.

In one embodiment, the apparatus further comprises:

and the second memory component is electrically connected with the first signal conversion component and is used for storing the image data.

In the embodiment, the signal processing assembly receives the display parameters of the display module and the image data to be transmitted, which are provided by the signal source, the first signal conversion assembly converts the image data into the first signal format, and then transmits the data in the first signal format to the second signal conversion assembly, and because the transmission loss rate of the first signal format is low, the loss is low in the process of transmitting the signal to the second signal conversion assembly; the second signal conversion assembly receives the display parameters and the image data, converts the data of the first signal format into a second signal format and transmits the second signal format to the display module to display, so that the loss of signals under the condition of a longer connecting line can be reduced, normal display of the display module is guaranteed, and the efficiency of signal transmission is improved.

Drawings

FIG. 1 is a schematic diagram of a signal transmission apparatus according to an embodiment;

FIG. 2 is a schematic diagram of an interface of an IT6510 chip in one embodiment;

FIG. 3 is a schematic diagram of an IT6510 chip in one embodiment;

FIG. 4 is a schematic diagram of a signal transmission apparatus according to an embodiment;

fig. 5 is a schematic diagram of a bridge unit in one embodiment.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In one embodiment, as shown in fig. 1, there is provided a transmission apparatus of a signal, the apparatus including:

a signal processing component 110, a first signal conversion component 120, a second signal conversion component 130 and a display module 140;

the signal processing component 110 is electrically connected to the signal source 150, and receives the display parameters provided by the signal source 150 and the image data to be transmitted;

in this embodiment, the signal processing component is electrically connected to the signal source, the signal source transmits the display parameters of the display module and the image data to be transmitted to the signal processing component, and the display modules of different specifications and models usually correspond to different display parameters. The display module can be an LCD module, an OLED module and the like; the display parameters of the display module may include, but are not limited to, the resolution, front and back shoulders, and refresh rate of the display module. The communication mode between the signal processing component and the signal source can be communication through a network. In one example, the signal processing component can be an ARM component.

The first signal conversion component 120 is electrically connected to the signal processing component 110, and is configured to convert an image format of the image data into a first signal format;

in this embodiment, the first signal conversion component is electrically connected to the signal processing component, receives the image data transmitted by the signal processing component, and converts the format of the received image data into the first signal format, where the first signal conversion component is an element, a circuit, or a component that can convert the format of the image data into the first signal format and output the first signal format. The signal processing assembly and the first signal conversion assembly can be in a PCIE communication mode. In one example, the first signal conversion component may be an FPGA component.

The second signal conversion component 130 is electrically connected to the signal processing component 110 and the first signal conversion component 120, and configured to receive the display parameter and the image data, and convert a first signal format of the image data into a second signal format, where a transmission loss rate of the first signal format is lower than that of the second signal format;

in this embodiment, the second signal conversion module is electrically connected to the signal processing module and the first signal conversion module, wherein a connection line between the second signal conversion module and the first signal conversion module is a connection line for transmitting the first signal format data. The second signal conversion module receives the display parameter and the image data input by the signal processing module and the image data in the first signal format input by the first signal conversion module, converts the image data in the first signal format into the image data in the second signal format, and is an element, a circuit, a component or the like capable of converting the image data from the first signal format into the second signal format and outputting the converted image data. In this embodiment, when format conversion is performed on image data, the transmission loss rate of the first signal format is lower than that of the first signal format. In one example, the first signal format has a greater capacity to transmit data than the second signal format, i.e., the first signal format has a greater transmission rate than the second signal format. In an example, the second signal conversion component may further output a timing sequence according to the received second signal corresponding to the display parameter output module, where the output timing sequence may include, but is not limited to, a screen end control signal of the display module and a power supply sequence of the display module.

The display module 140 is electrically connected to the second signal conversion component 130, and is configured to receive the image data in the second signal format and display the image data.

In this embodiment, the display module is electrically connected to the second signal conversion module, receives the image data in the second signal format transmitted by the second signal conversion module, and displays the image data to display the image. In one example, the display module receives the image data in the second signal format transmitted by the second signal conversion component and the second signal output timing sequence, and lights up the screen according to the second signal output timing sequence to display the image data in the second signal format. The interface of the display module is a second signal format interface, that is, the display module can receive and display the image data in the second signal format. In this embodiment, the connection line between the display module and the second signal conversion module is a connection line for transmitting the second signal format data.

In the embodiment, the signal processing assembly receives the display parameters of the display module and the image data to be transmitted, which are provided by the signal source, the first signal conversion assembly converts the image data into the first signal format, and then transmits the data in the first signal format to the second signal conversion assembly, and because the transmission loss rate of the first signal format is low, the loss is low in the process of transmitting the signal to the second signal conversion assembly; the second signal conversion assembly receives the display parameters and the image data, converts the data in the first signal format into a second signal format and transmits the second signal format to the display module to display, so that the loss of signals under the condition of a longer connecting line can be reduced, normal display of the display module is guaranteed, and the efficiency of signal transmission is improved.

In one embodiment, a length of a connection line between the second signal conversion module and the display module is smaller than a preset length value.

In this embodiment, the second signal conversion module is electrically connected to the display module through a connection line, and the second signal conversion module transmits the image data in the second signal format to the display module through the connection line for displaying, wherein the connection line is capable of transmitting the image data in the second signal format. The length of the connecting line is smaller than a preset length value, wherein the preset length value is generally a preset connecting line length value, and when the length of the connecting line is smaller than the preset length value, the loss of signal transmission is small or signals can be transmitted in a lossless mode. In one example, the different signal formats are not identical in loss during transmission, and therefore, image data of different second signal formats typically also correspond to different preset length values. Because the transmission loss rate of the first signal format is lower than that of the second signal format, the transmission distance of the data in the first signal format is usually set to be longer than that of the data in the second signal format in the longer-distance transmission process, that is, the length of a connecting line between the first signal conversion assembly and the second signal conversion assembly is longer than that between the second signal conversion assembly and the display module, and the second signal conversion assembly is arranged at a position close to the display module.

This embodiment, length through setting up the connecting wire between second signal conversion subassembly and the display module assembly is less than length value of predetermineeing, can reduce the loss of signal when transmitting to the display module assembly, guarantees that the display module assembly can be lighted by normal, can light a plurality of screens simultaneously, and image data can be by normal demonstration, has promoted the quality of display image.

In one embodiment, the first signal format is a DP signal format, and the first signal conversion element and the second signal conversion element are electrically connected by a DP connection line.

In this embodiment, in the process of signal conversion, the first signal format is set to be the DP signal format, the first signal conversion component and the second signal conversion component are connected by a DP connection line, and the transmission rate of the DIPI signal can reach 20Gbps, that is, 20G bits can be transmitted per second on each lane. The data in the DP signal format is transmitted through the DP connecting line, so that lossless transmission of signals within a longer distance can be realized. In one example, a copper core DP wire may be used, enabling lossless transmission of signals within a distance of 5 m. In one example, the first signal conversion component is an FPGA component, when the FPGA component performs signal conversion, resources of the FPGA required for converting data into a DP signal format are less than resources required for converting data into an MIPI signal format, and at this time, the data is converted into a DP signal and output, so that the resources can be saved, and the efficiency can be improved.

This embodiment, through the image data of DP connecting wire transmission DP signal format, can realize the lossless transmission of the signal in longer distance, guaranteed the normal demonstration of image, display module assembly can be lighted by normal, and improved the quality of image.

In this embodiment, the DP connection line is an optical fiber DP connection line, where the optical fiber DP connection line supports high definition image quality transmission and has the characteristics of zero delay and no signal interference; the lossless transmission of signals can be ensured within the length of dozens of meters, and a relay chip is not needed to amplify the signals.

This embodiment, through the data of optic fibre DP connecting wire transmission DP signal format, can realize the lossless transmission of the signal in the longer distance, transmission loss is low, has guaranteed that display module assembly can be lighted normally, has realized lighting polylith screen simultaneously, can realize high-quality image data's transmission, has improved display module assembly's display effect.

In this embodiment, the second signal format is an MIPI signal format, the second signal conversion component transmits image data in the MIPI signal format to the display module through the MIPI connection line, and the transmission rate of the MIPI signal can reach 2.5Gbps, that is, 2.5G bits can be transmitted per second on each lane. Wherein, the interface of display module assembly is the MIPI interface, and display module assembly can receive the MIPI signal promptly and normally show. In one example, the second signal conversion component converts the received image data in the first signal format into a MIPI HS signal; the signal processing assembly converts the received image data and module data into a combined signal, and transmits the combined signal to the second signal conversion assembly, and the second signal conversion assembly converts the combined signal into a timing signal and an MIPI DPHY LP instruction signal; then, the second signal conversion component combines the MIPI DPHY HS signal and the MIPI DPHY LP instruction signal into an MIPI DPHY signal; after the conversion is completed, the second signal conversion assembly transmits the MIPI DPHY signal and the time sequence signal to the display module, and the display module realizes the display of image data according to the time sequence signal and the MIPI DPHY signal, wherein the time sequence signal includes but is not limited to a control signal and a power supply sequence of the display module.

This embodiment, through second signal conversion subassembly conversion output MIPI signal and export to display module assembly through the MIPI connecting wire, can realize the normal demonstration of the display module assembly of MIPI interface, and guarantee image data's normal demonstration under the longer condition of polylith screen or connecting wire need light, improved image quality.

In one embodiment, the second signal conversion component employs an IT6510 chip.

In this embodiment, the second signal conversion component employs an IT6510 chip, and converts the received signal into a second signal format for output through the IT6510 chip and a peripheral circuit, wherein the maximum data transmission speed of the IT6510 chip can reach 2.5 Gbps. In one example, the first signal format is a DP signal format, the second signal format is an MIPI signal format, as shown in fig. 2, IT6510 receives image data in the DP signal format, receives a combined signal output by the signal processing component through the IIC, processes the image data in the DP signal format and the combined signal to obtain an MIPI DPHY signal, and inputs data in the DP signal format and outputs data in the MIPI signal format, as shown in fig. 3.

In the embodiment, the IT6510 chip is used for converting the signal format, so that the conversion of the image data format is realized, and the lossless transmission of signals with longer distance is ensured; the IT6510 chip has lower price, so the cost of the device is reduced; and the IT6510 chip outputs MIPI DPHY signals, so that data transmission with the maximum rate of 2.5Gbps can be realized, and the data transmission speed is greatly improved.

In one embodiment, the apparatus further comprises:

In this embodiment, the first signal conversion component receives the display parameters and configures the signal output mode according to the display parameters, where the first signal conversion component in this embodiment may implement conversion of multiple signal formats, and after receiving the display parameters, configures the signal output mode to output in the first signal format. After the configuration is completed, the first signal conversion component can convert the received image data into image data in a first signal format and output the image data.

In this embodiment, the first signal conversion component may configure the output mode first, and after configuring the output mode as the first signal format output according to the acquired display parameter, the image data may be converted, and the data may be converted into a signal format with a low loss rate first for output, so that lossless transmission of signals within a longer distance may be achieved, and normal display of an image may be ensured.

In one embodiment, the display parameters include module power parameters, and the device further includes a power supply component electrically connected to the signal processing component, the first signal conversion component, the second signal conversion component, and the display module, for receiving the module power parameters and outputting a power value matching the module power parameters to the display module.

In this embodiment, the transmission device of signal still includes power supply module, and power supply module respectively with signal processing group, first signal conversion subassembly, second signal conversion subassembly and display module assembly electric connection, give module and subassembly power supply. Still include module power parameter among the display parameter, the display module assembly can correspond different power demands according to different modules when carrying out the during operation, and power supply module receives module power parameter, according to the power value that parameter output corresponds reaches the display module assembly to make the display module assembly normally work. In one example, the module power parameter may include, but is not limited to, the magnitude of power values required by different components in the display module, the power supply sequence of the different components, and the like; wherein, the different parts of power supply module and display module assembly are electric connection respectively.

In the embodiment, the power supply assembly supplies power to other assemblies and modules in the device, so that the normal operation of the device is ensured; and meanwhile, receiving the power supply parameters of the module, and outputting a corresponding power supply value to the display module according to the power supply parameters of the module, so that the display module can work normally, and the screen can be lightened normally.

In one embodiment, the apparatus further comprises:

In this embodiment, the signal transmission device further includes a first memory component and a storage component, and both the first memory component and the storage component are electrically connected to the signal processing component. The first memory component is used for storing data generated by the signal processing component in the signal transmission process, including but not limited to data received and data sent by the signal processing component. The storage component is used for storing data generated by the signal transmission device in the signal transmission process, namely the data required by the operation of the signal transmission device.

In the embodiment, the running data of the signal processing assembly and the running data of the signal transmission device are respectively stored through the first memory assembly and the storage assembly, so that the normal work of the device is ensured, the data loss caused by abnormality is prevented, and the safety of the device is improved.

In one embodiment, the apparatus further comprises:

In this embodiment, the signal transmission device further includes a second memory device, and the second memory device is electrically connected to the first signal conversion device. The first signal conversion assembly stores the image data to the second memory assembly after receiving the image data transmitted by the signal processing assembly.

In the embodiment, the security of the image data is ensured through the second memory component electrically connected with the first signal conversion component, so that the first signal conversion component can normally operate, the stability of the device is improved, and the situation that the image data is lost due to abnormal conditions is avoided.

Fig. 4 is a schematic diagram illustrating a signal transmission apparatus according to an exemplary embodiment, and referring to fig. 4, the apparatus includes a main control system, and the main control system includes an ARM unit, a memory unit 1, and a storage unit. The ARM unit acquires parameter information (such as resolution, front and back shoulders and refresh rate), image data and module power supply information of the module from an upper computer, namely a PC unit through network communication. The image data are respectively stored in a file system of the ARM unit, after each time of starting, the image data are transmitted to the FPGA through a PCIE communication mode, then the FPGA writes the image data into the memory unit 2, and all parameter information of the module is transmitted to the FPGA unit in the image output system. And also transmits the module power information to the power control system. And the image output system consists of an FPGA unit and a memory unit. The FPGA unit configures the FPGA into a specific output mode according to the module parameter information transmitted by the ARM unit, in this embodiment, configures the FPGA into a DP output mode, and outputs a DP interface image signal according to the received image data. The MIPI conversion system comprises a bridging unit, wherein the ARM unit outputs a control signal through the IIC, and the FPGA unit outputs a DP image signal and transmits the DP image signal to the bridging unit. As shown in fig. 5, the bridge unit converts a DP image signal input by the FPGA into an MIPI DPHY HS image signal, converts a control signal input by the ARM into a timing signal and a MIPI DPHY LP command signal, then combines a MIPI DPHY HS signal and a MIPI DPHY LP signal into an MIPI DPHY signal, combines the timing signal and the MIPI DPHY signal to output to the display module, lights up the screen, and the timing signal includes a control signal at the screen end and a power supply sequence. The bridge chip may be formed by a chip module and peripheral circuits. And in the power control system, the power supply unit supplies power to all the subsystems, and generates a corresponding power supply according to the module power supply information transmitted by the ARM unit and sends the power supply to the module. In this embodiment, the FPGA unit and the bridge unit transmit through a DP line, the line length can reach 5 meters on the premise of lossless transmission, and the bridge unit converts a DP signal into an MIPI DPHY signal point screen on the side close to the screen, so that the connection line is extended while the signal quality is ensured. The embodiment can be realized by an ARM + FPGA + IT6510 architecture, the realization of the architecture has the advantage of strong variability, the image data meeting any resolution of a DP protocol can be transmitted, and the small-resolution low-refresh rate and high-resolution high-refresh rate and other screens with different specifications are compatible. The ARM runs a Linux operating system, processes network instructions, MIPI DPHY LP instructions, and stores and transmits image data. And through verilog and IP core coordination processing in the FPGA, the DP interface outputs image data corresponding to the resolution and the refresh rate. IT6510 combines the image data inputted from the DP interface with the MIPI DPHY LP instruction and converts the combined data into an MIPI DPHY signal. This embodiment can be used to the ageing equipment of MIPI DPHY interface screen, lights a plurality of screens simultaneously, and the wired long requirement of connecting wire uses the DP line as the connecting wire, and the bridging unit is close to the screen end side, satisfies the requirement of line length and data volume, can reduce cost simultaneously.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It should be understood that each component of the present application may be a hardware structure or by means of an existing computer program; the communication between the individual components and the external arrangement can be realized by means of existing computer programs. The components and the connections between the components may be implemented by hardware, or by hardware in combination with existing computer programs, without involving modifications to the method.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An apparatus for transmitting a signal, the apparatus comprising:

the signal processing assembly is electrically connected with a signal source and is used for receiving display parameters provided by the signal source and image data to be transmitted;

the display module is electrically connected with the second signal conversion assembly and used for receiving the image data in a second signal format and displaying the image data.

2. The apparatus of claim 1, wherein a length of a connection line between the second signal conversion module and the display module is less than a predetermined length value.

3. The apparatus of claim 1, wherein the first signal format is a DP signal format, and the first signal conversion element and the second signal conversion element are electrically connected by a DP connection line.

4. The apparatus of claim 3, wherein the DP connection is an optical fiber DP connection.

5. The apparatus of claim 1, wherein the second signal format is a MIPI signal format, and the second signal conversion module is electrically connected to the display module through a MIPI connection line.

6. The apparatus of claim 1, wherein the second signal conversion component is an IT6510 chip.

7. The apparatus of claim 1, further comprising:

8. The device of claim 1, wherein the display parameters comprise module power parameters, the device further comprising a power supply component electrically connected to the signal processing component, the first signal conversion component, the second signal conversion component, and the display module, for receiving the module power parameters and outputting a power value matching the module power parameters to the display module.

9. The apparatus of claim 1, further comprising:

10. The apparatus of claim 1, further comprising: