CN211507077U - LED display screen control system - Google Patents
LED display screen control system Download PDFInfo
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- CN211507077U CN211507077U CN201921870053.3U CN201921870053U CN211507077U CN 211507077 U CN211507077 U CN 211507077U CN 201921870053 U CN201921870053 U CN 201921870053U CN 211507077 U CN211507077 U CN 211507077U
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Abstract
The utility model discloses a LED display screen control system. The system comprises: the TF memory card is used for providing display data; the FPGA control module is used for processing the display data into display signals and sending the display signals to the mini-LED display module; and the mini-LED display module is used for controlling the mini-LED display screen to display according to the display signal. The technical scheme of the utility model the effect that LED display system can hand-carry has been realized.
Description
Technical Field
The embodiment of the utility model provides a relate to the LED display technology, especially relate to a LED display screen control system.
Background
With the rapid development of high and new technologies in the information age, people increasingly strongly desire to acquire and display various kinds of information in time, so that the rapid development of information media is driven, and an LED display screen is one of important media for information display. The LED display screen is a large-area display screen formed by utilizing light-emitting diode dot matrix modules or pixel units, and is widely applied to information display and advertising in public places such as financial markets, hospitals, stadiums, airports, docks, stations, expressways and the like. The traditional mode that the centralized control host is connected with the video source is a wired connection mode, a large number of signal cables need to be connected, so that the space layout is limited, the wiring is not convenient, and people cannot conveniently use the LED display screen in time.
SUMMERY OF THE UTILITY MODEL
The utility model provides a utility model name to realize the effect that LED display system can hand-carry.
In a first aspect, an embodiment of the present invention provides a LED display screen control system, include: a TF memory card, an FPGA control module and a mini-LED display module,
the TF memory card is used for providing display data;
the FPGA control module is used for processing the display data into display signals and sending the display signals to the mini-LED display module;
and the mini-LED display module is used for controlling the mini-LED display screen to display according to the display signal.
Optionally, the mini-LED display module includes: a driving unit and a brightness adjusting unit,
the driving unit is used for sending a driving signal to control the mini-LED display screen according to the display signal;
and the brightness adjusting unit is used for adjusting the brightness of the mini-LED display screen according to the driving signal.
Optionally, the driving unit is composed of 32 MBI5359 chips.
Optionally, the system further includes an infrared receiving module for receiving a remote control signal sent by the infrared remote controller.
Optionally, the system further includes a clock module, configured to provide a clock signal to the FPGA control module to provide a uniform timing sequence required for signal transmission.
Optionally, the random access memory SDRAM is externally extended from the FPGA control module.
Optionally, the system further includes a video decoder, configured to decode the display data of the TF memory card and send the decoded display data to the FPGA control module.
Optionally, the system further includes a voltage pull-up module for pulling up an output voltage of the FPGA module.
Optionally, the system further includes an initialization module for resetting the entire system.
Optionally, the system further includes a power module for supplying power to the whole system.
The technical scheme of the embodiment of the utility model, through a LED display screen control system, solved the redundant, bulky problem of current LED display system, reached the effect that LED display system can hand-carry.
Drawings
Fig. 1 is a schematic structural diagram of a LED display screen control system in the first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a LED display screen control system in the first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a LED display screen control system in the second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a LED display screen control system in the third embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a LED display screen control system in the third embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, the first speed difference may be referred to as a second speed difference, and similarly, the second speed difference may be referred to as a first speed difference, without departing from the scope of the present application. The first speed difference and the second speed difference are both speed differences, but they are not the same speed difference. The terms "first", "second", etc. 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 one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Example one
Fig. 1 is the embodiment of the utility model provides a LED display screen control system's that provides structural schematic diagram, this embodiment is applicable to the condition that LED display screen shows, and this system includes: the memory card comprises a TF memory card 1, an FPGA control module 2, a mini-LED display module 3 and a mini-LED display screen 4, wherein the TF memory card 1 is used for providing display data; the FPGA control module 2 is used for processing the display data into display signals and sending the display signals to the mini-LED display module 3; and the mini-LED display module 3 is used for controlling the mini-LED display screen 4 to display according to the display signal.
In this embodiment, the memory card includes: the TF card is also called a micro SD card, and can be inserted into an SD card converter to be used as the SD card; the RS-MMC card can be used as an MMC card by inserting an MMC card adapter; the mini SD card can be used as the SD card after being inserted with the SD converter; CF cards, and the like. In the embodiment, the TF memory card is adopted, and the TF memory card 1 is small in size and is more beneficial to saving space. The FPGA has rich I/O interfaces and internal resources, and can greatly improve the performance of the whole system by the division of work and cooperation with the microprocessor. FPGAs have flexible on-line programming capabilities and high integration and are capable of processing and transmitting large amounts of data in a short time. Mini-LED displays are used for energy efficient, thinner, HDR and gap design displays for backlighting applications, such as smart phones, televisions, car displays and gaming notebook computers. The Mini-LED display screen is an improved version of an LED backlight source, but the image quality of the display can be obviously improved, and the RGB full-color Mini-LED display adopts gray scale modulation to realize color display. The user can save the display data which needs to be displayed on the mini-LED display screen 4 on the TF memory card 1, the FPGA module 2 converts the display data into display signals, and the display signals can be dot matrix data corresponding to the LEDs and signals of addresses. The FPGA module 2 stores the display signals in the memory, when the mini-LED display screen 4 needs to display, the display signals in the memory can be read and sent to the mini-LED display module 3, the mini-LED display module 3 adjusts the change of the RGB three color channels of the mini-LED display screen 4 and the superposition of the RGB three color channels according to the display signals to obtain various colors, and the image displayed by the mini-LED display screen 4 is adjusted according to the display parameters.
Further, as shown in fig. 2, the mini-LED display module 3 includes: the driving unit 31 is used for sending a driving signal to control the mini-LED display screen 4 according to the display signal; the brightness adjusting unit 32 is configured to adjust the brightness of the mini-LED display 4 according to the driving signal.
In this embodiment, the driving unit 31 is connected to the FPGA module 2, the FPGA module 2 receives the display data from the TF memory card, processes and converts the video signal into a display signal, the display signal may be a serial digital signal, and transmits the display signal to the driving unit 31, the driving unit 31 may drive the mini-LED display screen 4 according to the display signal sent by the FPGA module 2, the display signal includes display data of gray scale, brightness, and chromaticity, so as to display the display data originally stored in the TF memory card through the mini-LED display screen 4. A brightness adjusting unit 32 is further included between the driving unit 31 and the mini-LED display screen 4, and the brightness of the mini-LED display screen 4 can be changed and adjusted according to the driving signal of the driving unit 31.
Further, the driving unit is composed of 32 MBI5359 chips.
In this embodiment, a mini-LED full-color driving chip is used to address each LED chip and independently drive the current, thereby displaying an image. One mini-LED display screen 4 with 32 IC MBI5359 driver controller, one MBI5359 chip can control 512 pixels, 120x 128 pixels with 32 bit BGR color, for controller ICMBI5359 RGB color can be used for 48 bit (3x16) RGB color (16 bit per color). The IC MBI5359 can realize HDR optimization and better reflect the visual effect in a real environment.
The technical scheme of the embodiment of the utility model, through a LED display screen control system, solved the redundant, bulky problem of current LED display system, reached the effect that LED display system can hand-carry.
Example two
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention provides a LED display screen control system, and this embodiment further includes an infrared receiving module 5 on the basis of the above embodiment, for receiving a remote control signal sent by an infrared remote controller.
In this embodiment, the image displayed on the mini-LED display screen 4 according to the display data provided by the TF memory card 1 does not necessarily satisfy the viewing effect, and the display of the mini-LED display screen 4 may be remotely controlled by an infrared remote controller. The infrared receiving module receives a remote control signal sent by the infrared remote controller, and sends the remote control signal to the FPGA module 2 through the serial communication interface, and the FPGA module 2 processes the remote control signal and then debugs the display parameters, such as brightness, chromaticity and the like, of the mini-LED display screen 4 through the driving unit 31.
In this embodiment, the number of the keyboards of the infrared remote controller may be at least 16, the LED indicator includes 6 adjustment position indicator lights and an infrared emission signal indicator light, the keyboard includes 10 program keys "0-9", and 6 function keys of confirmation, instruction position, + key, -key, pause and reset, the keys 0-9 can play corresponding files, the keys + can increase the play speed, the keys-can reduce the play speed, and after the pause key is pressed, the pause key is pressed again to continue.
According to the technical scheme, the LED display screen control system comprises the infrared receiving module to receive the remote control signal sent by the infrared remote controller, the problem that the display screen is complex to debug is solved, and the effect of remote and simple debugging is achieved.
EXAMPLE III
Fig. 4 is a schematic structural diagram of a third embodiment of the present invention, which provides a structure diagram of a LED display screen control system, and the present embodiment further includes a clock module 6 on the basis of the above embodiment, for providing the FPGA control module 2 with a clock signal to provide a unified time sequence required by signal transmission. The FPGA control module is externally extended with a random access memory SDRAM 7.
In this embodiment, the clock module 6 generates a clock signal to the FPGA control module 2, and the whole system satisfies output synchronization of data through the clock signal. The random access memory SDRAM7 is based on a double-memory-bank structure, when a CPU accesses data from one memory bank, the other memory bank is ready for reading and writing the data, so that the reading efficiency is improved in a multiple mode, the random access memory SDRAM7 can form a data switching area through the synchronization of clock signals, the reading and writing are carried out simultaneously by adopting ping-pong logic, and the high-speed transmission of the data is ensured.
Further, as shown in fig. 5, the system further includes a video decoder 8, configured to decode the display data of the TF memory card 1 and send the decoded display data to the FPGA control module 2.
In this embodiment, the video decoder 8 may include a plurality of audio DA decoders, and simply processes the display data into RGB video signals, and then primarily decodes the image information and transmits the image information to the FPGA module 2, and the FPGA module 2 performs one or two of JPEG decoding and h.264 decoding on the decoded image information and then drives the mini-LED display screen 4 to display through the driving unit 31.
Further, the system further comprises a voltage pull-up module 9 for pulling up the output voltage of the FPGA module 2.
In this embodiment, since the output of the FPGA pin is 3.3V, and the mini-LED display module 3 needs 5V voltage for driving, the output signal of the FPGA module 2 cannot be directly connected to the mini-LED display module 3, and can be buffered by adding a buffer, and the output voltage of the FPGA module 2 is pulled up by the voltage pull-up module 9, for example, the output level is pulled up to 5V by an external 5V working voltage.
Further, the system comprises an initialization module 10 for resetting the whole system.
In this embodiment, when the system starts to be used, the initialization module 10 may initialize the system and set parameters, or a reset instruction may be received during the use process to reset the whole system.
Further, the system also comprises a power supply module 11 for supplying power to the whole system.
In this embodiment, the power module 11 supplies power to the TF memory card 1, the FPGA control module 2, the mini-LED display module 3, and the mini-LED display screen 4.
According to the technical scheme of the embodiment, the clock module 6 is used for providing clock signals for the FPGA control module 2 so as to provide a uniform time sequence required by signal transmission. The random access memory SDRAM7 is extended outside the FPGA control module, so that the problem of slow reading of memory data is solved, and the effect of ensuring high-speed transmission of the data is achieved.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (8)
1. An LED display screen control system, comprising: a TF memory card, an FPGA control module and a mini-LED display module,
the TF memory card is used for providing display data;
the FPGA control module is used for processing the display data into display signals and sending the display signals to the mini-LED display module;
the mini-LED display module is used for controlling a mini-LED display screen to display according to the display signal;
the mini-LED display module includes: a driving unit and a brightness adjusting unit,
the driving unit is used for sending a driving signal to control the mini-LED display screen according to the display signal, and the driving unit consists of 32 MBI5359 chips;
and the brightness adjusting unit is used for adjusting the brightness of the mini-LED display screen according to the driving signal.
2. The LED display screen control system of claim 1, further comprising an infrared receiving module for receiving a remote control signal transmitted by an infrared remote controller.
3. The LED display screen control system of claim 1, further comprising a clock module for providing a clock signal to the FPGA control module to provide a uniform timing sequence required for signal transmission.
4. The LED display screen control system of claim 3, further comprising:
and a random access memory SDRAM is expanded outside the FPGA control module.
5. The LED display screen control system according to claim 1, further comprising a video decoder for decoding the display data of the TF memory card and sending the decoded display data to the FPGA control module.
6. The LED display screen control system of claim 1, further comprising a voltage pull-up module for pulling up the output voltage of the FPGA module.
7. The LED display screen control system of claim 1, further comprising an initialization module for reset of the entire system.
8. The LED display screen control system of claim 1, further comprising a power module for powering the entire system.
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| CN201921870053.3U CN211507077U (en) | 2019-11-01 | 2019-11-01 | LED display screen control system |
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| CN201921870053.3U CN211507077U (en) | 2019-11-01 | 2019-11-01 | LED display screen control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634824A (en) * | 2020-12-31 | 2021-04-09 | 深圳市思坦科技有限公司 | Mini-LED display screen splicing display driving system and driving display method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112634824A (en) * | 2020-12-31 | 2021-04-09 | 深圳市思坦科技有限公司 | Mini-LED display screen splicing display driving system and driving display method |
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