Signal conversion device and panel control system
By using an HDMI interface and a field-programmable gate array (FPGA) signal conversion device, the problems of limited input device types and poor signal stability in existing technologies are solved, achieving the effects of simplified signal conversion and improved signal quality.
Patent Information
- Application Number
- CN202521385606.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-02
AI Technical Summary
Existing signal conversion schemes for display devices require DP interface support from input devices, which limits the types of input devices, increases the cost of peripheral hardware, and the signal conversion process is complex and has poor stability.
The signal conversion device adopts HDMI, FPGA and LVDS interfaces. It receives image data through HDMI interface and processes it into LVDS format using FPGA. Combined with signal conversion board, it converts the data into V-By-One signal, which simplifies the signal conversion process and improves stability.
It expands the range of input devices, reduces peripheral hardware costs, and improves the stability and quality of output signals by simplifying the signal conversion process.
Smart Images
Figure CN224684246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of display control technology, and in particular to a signal conversion device and a panel control system. Background Technology
[0002] In modern society, with the development of technology, people have increasingly higher requirements for display devices. Display devices are no longer just for displaying images; they also require high-quality audio signals and stable lighting control. Therefore, audio signal processing technology, display technology, and lighting control system technology have become indispensable technologies for modern display devices. Existing lighting systems typically use a DisplayPort (DP) interface, which converts the input HDMI signal to an LVDS signal, then uses a signal converter to convert the LVDS signal to a V-By-One signal before providing it to the TCON (Timing Controller) board. However, this solution requires the input device to have a DP interface, thus limiting the types of input devices and increasing the cost of peripheral hardware. Furthermore, this solution has a complex signal conversion process, poor output signal stability, and is relatively complex to implement. Utility Model Content
[0003] In order to improve at least some of the above-mentioned disadvantages or deficiencies, embodiments of the present invention provide a signal conversion device and a panel control system.
[0004] Specifically, in one aspect, the present invention provides a signal conversion device comprising: an HDMI interface for receiving first image data and control parameters; a field-programmable gate array (FPGA) electrically connected to the HDMI interface, wherein the FPGA is used to process the first image data according to the control parameters and convert it into second image data in LVDS format; and an LVDS interface for outputting the second image data.
[0005] In one embodiment of this utility model, the HDMI interface is of type A, the HDMI interface supports a resolution of 1080p, and the HDMI interface supports a refresh rate range of 30Hz-60Hz.
[0006] In one embodiment of this utility model, the voltage amplitude of the LVDS interface is 3.3V and the data transmission rate is 250Mbps.
[0007] In one embodiment of this utility model, the signal conversion device further includes a signal converter board electrically connected to the LVDS interface, the signal converter board being used to convert the second image data into a V-By-One signal and output it.
[0008] In one embodiment of this utility model, the signal conversion board includes a level conversion circuit, a signal amplification circuit, and a signal conditioning circuit.
[0009] In one embodiment of this utility model, the signal converter board is further provided with a V-By-One interface, which is used to output a V-By-One signal. The parameters of the V-By-One signal are as follows: voltage amplitude 5V, data transmission rate 250Mbps.
[0010] On the other hand, this utility model embodiment also provides a panel control system, including: a signal conversion device as described above; a signal conversion board electrically connected to the signal conversion device; and a display device, the display device including a timing control board electrically connected to the signal conversion board.
[0011] In one embodiment of this utility model, the signal conversion board includes a level conversion circuit, a signal amplification circuit, and a signal conditioning circuit.
[0012] In one embodiment of this utility model, the signal converter board is further provided with a V-By-One interface, which is used to output a V-By-One signal. The parameters of the V-By-One signal are as follows: voltage amplitude 5V, data transmission rate 250Mbps.
[0013] In another aspect, this utility model embodiment also provides a panel control system, including: the signal conversion device as described above; and a display device, the display device including a timing control board, the timing control board being electrically connected to the signal conversion device.
[0014] As can be seen from the above, the above-mentioned technical features of this utility model can have one or more of the following beneficial effects: The signal conversion device provided in this embodiment is equipped with an HDMI interface, a field-programmable gate array (FPGA), and an LVDS interface. Through the HDMI interface and the FPGA, the signal conversion device can be directly connected to the HDMI interface of a computer or other devices, reducing the requirements for external devices. The FPGA processes the first image data according to the control parameters and converts it into second image data in LVDS format for output, which can simplify the signal conversion process, improve the stability of the output signal, and achieve a wider range of output frequencies. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of a signal conversion device provided in an embodiment of the present invention.
[0017] Figure 2 This is a schematic diagram of another signal conversion device provided in an embodiment of the present invention.
[0018] Figure 3 This is a schematic diagram of a panel control system provided in an embodiment of the present utility model.
[0019] Figure 4 This is a schematic diagram of another panel control system provided in an embodiment of the present utility model.
[0020] Main component numbers: 100. Signal conversion device; 110. HDMI interface; 120. Field programmable gate array; 130. LVDS interface; 200. Signal conversion board; 300. Display device; 310. Timing control board. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] See Figure 1 This utility model provides a signal conversion device 100, which may include, for example, an HDMI interface 110, a field programmable gate array 120, and an LVDS interface 130.
[0023] HDMI (High-Definition Multimedia Interface) can transmit high-quality audio and video signals. Signal conversion device 100 connects to external devices such as desktop computers and laptops via the HDMI interface. These external devices typically have an HDMI interface. Field-Programmable Gate Array (FPGA) 120 has powerful data processing capabilities and flexible programming capabilities, enabling the implementation of complex logic functions and signal processing algorithms, thus improving the effect and efficiency of signal processing. LVDS (Low-Voltage Differential Signaling) enables high-speed, low-power data transmission. HDMI interface 110 and LVDS interface 130 are electrically connected to FPGA 120. HDMI interface 110 receives first image data and control parameters transmitted from external devices. The first image data and control parameters are HDMI signals. FPGA 120 processes the first image data according to the control parameters and converts it into second image data in LVDS format. For example, a user can input first image data and control parameters via an external device. These control parameters could be, for instance, switching the display frequency from 60Hz to 120Hz and adjusting the resolution from 3840×2160 (4K UHD) to 3840×1080 to meet the requirements of a high refresh rate display. The field-programmable gate array 120 can perform signal conversion processing according to the aforementioned control parameters, converting the input signal into an output signal that conforms to the target resolution and refresh rate. At the input end, for example, the screen resolution can be adjusted first, setting the screen resolution of the first image data to 3840×1080 to ensure that the signal format is consistent with the target output. The field-programmable gate array 120 further processes the first image data to ensure that the second image data can be displayed normally at a resolution of 3840×1080 and a refresh rate of 120Hz. The LVDS interface 130 is used to output the second image data.
[0024] The signal conversion device 100 provided in this embodiment is equipped with an HDMI interface 110, a field-programmable gate array (FPGA) 120, and an LVDS interface 130. Through the HDMI interface 110 and the FPGA 120, the signal conversion device 100 can be directly connected to the HDMI interface of a computer or other device, instead of the existing DP interface. This expands the types of input devices and reduces the cost of peripheral hardware. Furthermore, the FPGA 120 processes the first image data according to control parameters and converts it into second image data in LVDS format for output. This signal conversion method reduces signal loss and interference during the conversion process and improves signal stability and quality.
[0025] In one embodiment of this invention, the HDMI interface 110 is a Type A interface, supports a resolution of 1080p, and supports a refresh rate range of 30Hz-60Hz. The Field Programmable Gate Array (FPGA) 120 can be, for example, a Xilinx XC3S500E, which has abundant logic resources and high-speed data processing capabilities. The processing algorithm of the FPGA 120 can be, for example, a custom LVDS output algorithm, which can output corresponding LVDS signals according to different HDMI input signals. The LVDS interface 130 has a voltage amplitude of 3.3V and a data transmission rate of 250Mbps.
[0026] See Figure 2 The signal conversion device 100 provided in this embodiment may, for example, further include a signal converter board 200. The signal converter board 200 is electrically connected to the LVDS interface 130 and is used to convert the second image data into a V-By-One signal and output it. The signal converter board 200 is used to convert the second image data of the LVDS signal into a V-By-One signal. The signal converter board 200 may, for example, include a level conversion circuit, a signal amplification circuit, and a signal conditioning circuit, which can realize multiple functions such as level conversion, signal amplification, and signal conditioning, and can improve the quality and stability of signal transmission. The signal converter board 200 is also provided with a V-By-One interface, which is used to output a V-By-One signal. The parameters of the V-By-One signal are as follows: voltage amplitude 5V, data transmission rate 250Mbps.
[0027] See Figure 3 This utility model embodiment also provides a panel control system, which may include, for example, the following: Figure 1 The signal conversion device 100, signal conversion board 200, and display device 300 are shown. See also Figure 4 This utility model embodiment also provides a panel control system, which may include, for example, the following: Figure 2 The signal conversion device 100 and display device 300 are shown. A panel control system is used to control the display of the display device 300. In some embodiments, the signal conversion board 200 may be integrated with the field-programmable gate array 120 on a single device. In other embodiments, the signal conversion board 200 and the signal conversion device 100 are two separate devices.
[0028] The display device 300 may be, for example, a display screen. The display device 300 includes a timing control board 310, also known as a TCON (Timing Controller) board. The timing control board 310 is electrically connected to a signal converter board 200. The signal converter board 200 transmits V-By-One signals to the timing control board 310. The timing control board 310 may be, for example, a TI TLC5940. The timing control board 310 can realize the timing and control of the display signal, ensuring the accuracy and synchronization of the display signal. The display signal processed by the timing control board 310 is output to the display device 300 to realize the display function of the lighting system. The panel control system provided in this embodiment of the present invention, through the HDMI input-based signal conversion device 100 and its signal conversion method, can realize simple and convenient signal conversion, widely cover HDMI output frequencies, and improve signal stability and quality.
[0029] To facilitate understanding of the panel control system provided in this embodiment, the control method of the panel control system provided in this embodiment will be illustrated below with examples.
[0030] First, an HDMI signal from a laptop or desktop computer can be connected to the signal conversion device 100 using, for example, a standard HDMI cable. After input, the HDMI signal enters the field-programmable gate array (FPGA) 120 for processing. The signal accepted by the HDMI interface 110 can be, for example, 30Hz or 60Hz, and the control parameters can be, for example, the desired resolution and refresh rate set by the user. For instance, the user can input first image data and control parameters via an external device. These control parameters could be, for example, switching the display frequency from 60Hz to 120Hz, and simultaneously adjusting the resolution from 3840×2160 (4K UHD) to 3840×1080 to meet the requirements of a high refresh rate display. The FPGA 120 can then perform signal conversion processing according to these control parameters, converting the input signal into an output signal that conforms to the target resolution and refresh rate. At the input end, for example, the screen resolution can be adjusted first, setting the resolution of the first image data to 3840×1080 to ensure that the signal format is consistent with the target output. The field-programmable gate array 120 further processes the first image data to ensure that the second image data can be displayed normally at a resolution of 3840×1080 and a refresh rate of 120Hz. The LVDS interface 130 outputs the second image data to the signal converter board 200, which converts the LVDS signal into a V-By-One signal and sends it to the timing control board 310. The timing control board 310 controls the display device 300 to display the signal. Through the panel control system provided in this embodiment, low refresh rate input signals can be efficiently converted into high refresh rate output signals, which is suitable for application scenarios that require high dynamic display effects.
[0031] In summary, the signal conversion device 100 provided in this embodiment of the present invention, through the configuration of the HDMI interface 110 and the field-programmable gate array 120, allows the signal conversion device 100 to be directly connected to the HDMI interface of a computer or other device, instead of the existing DP interface, saving the need for a DP to DVI module. This expands the types of input devices, and external devices do not require a specific graphics card, only an HDMI interface, reducing the cost of peripheral hardware. Furthermore, by using the field-programmable gate array 120 to process the first image data according to control parameters and convert it into second image data in LVDS format for output, this signal conversion method reduces signal loss and interference during the conversion process, improving signal stability and quality.
[0032] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the inventive purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.
[0033] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units through some interfaces, and may be electrical, mechanical, or other forms.
[0034] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A signal conversion device, characterized in that, include: The HDMI interface is used to receive initial image data and control parameters; A field-programmable gate array (FPGA) is electrically connected to the HDMI interface. The FPGA is used to process the first image data according to the control parameters and convert it into second image data in LVDS format. The LVDS interface is used to output the second image data.
2. The signal conversion device as described in claim 1, characterized in that, The HDMI interface is of type A, supports a resolution of 1080p, and supports a refresh rate range of 30Hz-60Hz.
3. The signal conversion device as described in claim 1, characterized in that, The LVDS interface has a voltage amplitude of 3.3V and a data transmission rate of 250Mbps.
4. The signal conversion device according to any one of claims 1 to 3, characterized in that, Also includes: The signal converter board is electrically connected to the LVDS interface. The signal converter board is used to convert the second image data into a V-By-One signal and output it.
5. The signal conversion device as described in claim 4, characterized in that, The signal conversion board includes a level conversion circuit, a signal amplification circuit, and a signal conditioning circuit.
6. The signal conversion device as described in claim 4, characterized in that, The signal converter board is also equipped with a V-By-One interface, which is used to output the V-By-One signal. The parameters of the V-By-One signal are as follows: voltage amplitude 5V, data transmission rate 250Mbps.
7. A panel control system, characterized in that, include: The signal conversion device as described in any one of claims 1 to 3; A signal converter board is electrically connected to the signal conversion device. as well as The display device includes a timing control board electrically connected to the signal converter board.
8. The panel control system as described in claim 7, characterized in that, The signal conversion board includes a level conversion circuit, a signal amplification circuit, and a signal conditioning circuit.
9. The panel control system as described in claim 7, characterized in that, The signal converter board is also equipped with a V-By-One interface, which is used to output a V-By-One signal. The parameters of the V-By-One signal are as follows: voltage amplitude 5V, data transmission rate 250Mbps.
10. A panel control system, characterized in that, include: The signal conversion device as described in any one of claims 4 to 6; as well as The display device includes a timing control board electrically connected to the signal conversion device.