Display module, display system and display screen

Abstract

The invention is suitable for the technical field of display screens, and provides a display module, a display system and a display device.The display module comprises a power supply module, a first driving module, a second driving module and a plurality of light-emitting arrays, and each lamp bead array comprises a light-emitting unit and a signal transmitting unit; the power supply module is electrically connected with the first driving module and the second driving module, the first driving module is electrically connected with the light-emitting units in all the light-emitting arrays, and the second driving module is electrically connected with the signal transmitting units in all the light-emitting arrays. According to the display module, the light emitting unit and the signal emitting unit are integrated together, and the signal emitting function and the display function are achieved. The integration level and the functional diversity of the display module are improved, more complex visual effect and interactive experience can be achieved in high-end stage display application, the light emitting unit and the signal emitting unit are independently controlled, the display effect and the signal emitting intensity can be more accurately adjusted, and the display quality and reliability are further improved.

Description

Technical Field

[0001] The present application belongs to the technical field of display screens, and in particular, relates to a display module, a display system and a display screen. Background Art

[0002] As LED (light-emitting diode) technology has shown significant advantages in the display field, such as small pitch, high contrast and high color gamut, LED display screens are increasingly used on stage. At present, most display screens on the market only use the traditional display method of red, green and blue lamp beads. However, the traditional display method is not suitable for high-end stage display applications due to its limited color performance and inability to achieve special visual effects. Summary of the invention

[0003] The embodiments of the present application provide a display module, a display system and a display screen, which can solve the problem that the display mode of the existing display screen is not suitable for high-end stage display applications due to limited color expression and inability to achieve special visual effects.

[0004] In a first aspect, an embodiment of the present application provides a display module, including a power supply module, a first driving module, a second driving module and a plurality of light-emitting arrays, each of the light-emitting arrays including a light-emitting unit and a signal transmitting unit, the power supply module is electrically connected to the first driving module and the second driving module respectively, the first driving module is electrically connected to the light-emitting units in all the light-emitting arrays, and the second driving module is electrically connected to the signal transmitting units in all the light-emitting arrays;

[0005] The first driving module is used to receive a first control signal, and transmit the first supply voltage output by the power supply module to all the light-emitting units according to the first control signal; the second driving module is used to receive a second control signal, and transmit the second supply voltage output by the power supply module to all the signal emitting units according to the second control signal.

[0006] In a possible implementation manner of the first aspect, the power supply module includes a power supply unit and a first voltage conversion unit, the power supply unit is electrically connected to the first driving module and the first voltage conversion unit respectively, and the first voltage conversion unit is electrically connected to the second driving module;

[0007] The power supply unit is used to output the first power supply voltage to the first driving module and output the first voltage to the first voltage conversion unit; the first voltage conversion unit is used to convert the first voltage into the second power supply voltage and output the second power supply voltage to the second driving module.

[0008] In a possible implementation manner of the first aspect, the first voltage conversion unit includes a first voltage conversion chip, an input end of the first voltage conversion chip is electrically connected to the power supply unit, and an output end of the first voltage conversion chip is electrically connected to the second driving module.

[0009] In a possible implementation manner of the first aspect, the first driving module includes a switch unit and a constant current driving unit, the switch unit is electrically connected to the power supply module and the first ends of all the light-emitting units respectively, and the constant current driving unit is electrically connected to the second ends of all the light-emitting units;

[0010] The switch unit is used to be turned on according to the first control signal, and the constant current drive unit is used to receive a third control signal and output corresponding level signals to the second ends of all the light-emitting units according to the third control signal.

[0011] In a possible implementation of the first aspect, the light-emitting unit includes red LED lamp beads, green LED lamp beads and blue LED lamp beads, the switch unit includes a first switch tube, a second switch tube and a third switch tube, the control ends of the first switch tube, the second switch tube and the third switch tube are all used to receive the first control signal, the first conduction end of the first switch tube, the first conduction end of the second switch tube and the first conduction end of the third switch tube are all electrically connected to the power supply module, the second conduction end of the first switch tube is electrically connected to the positive poles of all the red LED lamp beads, the second conduction end of the second switch tube is electrically connected to the positive poles of all the green LED lamp beads, and the second conduction end of the third switch tube is electrically connected to the positive poles of all the blue LED lamp beads.

[0012] In a possible implementation of the first aspect, the constant current drive unit includes a first constant current drive chip, a second constant current drive chip and a third constant current drive chip, the first constant current drive chip is electrically connected to the negative poles of all the red LED lamp beads, the second constant current drive chip is electrically connected to the negative poles of all the green LED lamp beads, and the third constant current drive chip is electrically connected to the negative poles of all the blue LED lamp beads.

[0013] In a possible implementation of the first aspect, the signal emitting unit includes an infrared LED lamp bead, the second driving module includes a fourth switch tube and a fourth constant current driving chip, the control end of the fourth switch tube is used to receive the second control signal, the first conduction end of the fourth switch tube is electrically connected to the power supply module, the second conduction end of the fourth switch tube is electrically connected to the positive pole of all the signal emitting units, and the fourth constant current driving chip is electrically connected to the negative pole of all the signal emitting units.

[0014] In a possible implementation manner of the first aspect, the display module further includes a signal amplification module and a decoding module, and the decoding module is electrically connected to the signal amplification module, the first driving module, and the second driving module respectively;

[0015] The signal amplification module is used to amplify the first control signal to obtain a third control signal, and transmit the third control signal to the decoding module, the first driving module and the second driving module respectively; the decoding module is used to decode the third control signal and output the decoding signal to the first driving module and the second driving module respectively.

[0016] In a second aspect, an embodiment of the present application provides a display system, comprising a control module and the display module described in any one of the first aspects, wherein the control module is electrically connected to a first driving module and a second driving module in the display module respectively;

[0017] The control module is used to output a first control signal to the first driving module, and is also used to output a second control signal to the second driving module.

[0018] In a third aspect, an embodiment of the present application provides a display screen, comprising the display system described in the second aspect.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0020] The display module provided in the embodiment of the present application includes a power supply module, a first driving module, a second driving module and a plurality of light-emitting arrays, each lamp bead array including a light-emitting unit and a signal transmitting unit. The power supply module is used to provide a first power supply voltage and a second power supply voltage, and the first driving module transmits the first power supply voltage to all light-emitting units according to the received first control signal, and supplies power to all light-emitting units. The second driving module transmits the second power supply voltage to all signal transmitting units according to the received second control signal, and supplies power to all signal transmitting units. It can be seen that the display module provided in the embodiment of the present application integrates the light-emitting unit and the signal transmitting unit together, and realizes the signal transmitting function and the display function. In this way, not only the integration and functional diversity of the display module are improved, but also more complex visual effects and interactive experiences can be realized in high-end stage display applications, such as virtual green screen, real-time background replacement and interactive projection. In addition, by independently controlling the light-emitting unit and the signal transmitting unit, the display effect and signal transmission intensity can be adjusted more accurately, further improving the display quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 is a principle block diagram of a display module provided in one embodiment of the present application;

[0023] Figure 2 is a principle block diagram of a display module provided by another embodiment of the present application;

[0024] Figure 3 is a circuit connection diagram of a display module provided in one embodiment of the present application;

[0025] Figure 4 is a circuit connection diagram of a switch unit provided in an embodiment of the present application;

[0026] Figure 5 is a circuit connection diagram of a fourth switch tube provided in an embodiment of the present application;

[0027] Figure 6 is a schematic diagram of a constant current drive chip provided in one embodiment of the present application;

[0028] Figure 7 is a principle block diagram of a display module provided by another embodiment of the present application;

[0029] Figure 8 is a schematic diagram of a decoder chip provided in an embodiment of the present application;

[0030] Fig. 9 It is a principle block diagram of a control module provided in one embodiment of the present application.

[0031] In the figure: 101, power supply module; 1011, power supply unit; 1012, first voltage conversion unit; 102, first driving module; 1021, switch unit; 1022, constant current driving unit; 103, second driving module; 104, light emitting array; 105, signal amplification module; 106, decoding module. DETAILED DESCRIPTION

[0032] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0033] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0034] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0035] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0036] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0037] At present, most display screens on the market only use the traditional display method of red, green and blue lamp beads. To realize the infrared function, it is usually necessary to add infrared sensing devices around the periphery of the display screen. However, this method requires additional equipment, which increases the design cost of the display screen.

[0038] Based on the above problems, the display module provided by the embodiment of the present application includes a power supply module, a first driving module, a second driving module and a plurality of light-emitting arrays, each lamp bead array including a light-emitting unit and a signal transmitting unit. Among them, the power supply module is used to provide a first power supply voltage and a second power supply voltage, and the first driving module transmits the first power supply voltage to all light-emitting units according to the received first control signal, and supplies power to all light-emitting units. The second driving module transmits the second power supply voltage to all signal transmitting units according to the received second control signal, and supplies power to all signal transmitting units. It can be seen that the display module provided by the embodiment of the present application integrates the light-emitting unit and the signal transmitting unit together, and realizes the signal transmitting function and the display function. In this way, not only the integration and functional diversity of the display module are improved, but also more complex visual effects and interactive experiences can be realized in high-end stage display applications, such as virtual green screen, real-time background replacement and interactive projection. In addition, by independently controlling the light-emitting unit and the signal transmitting unit, the display effect and signal transmission intensity can be adjusted more accurately, further improving the display quality and reliability.

[0039] In order to illustrate the technical solution described in this application, a specific embodiment is provided below for illustration.

[0040] Figure 1 1 shows a block diagram of the principle of a display module provided by an embodiment of the present application. Figure 1 As shown, the display module includes a power supply module 101, a first driving module 102, a second driving module 103 and multiple light-emitting arrays 104, each lamp bead array includes a light-emitting unit and a signal transmitting unit, the power supply module 101 is electrically connected to the first driving module 102 and the second driving module 103 respectively, the first driving module 102 is electrically connected to the light-emitting units in all the light-emitting arrays 104, and the second driving module 103 is electrically connected to the signal transmitting units in all the light-emitting arrays 104.

[0041] Specifically, the power supply module 101 is used to provide a first power supply voltage and a second power supply voltage, and the first driving module 102 transmits the first power supply voltage to all light-emitting units according to the received first control signal, and supplies power to all light-emitting units. The second driving module 103 transmits the second power supply voltage to all signal transmitting units according to the received second control signal, and supplies power to all signal transmitting units. It can be seen that the display module provided in the embodiment of the present application integrates the light-emitting unit and the signal transmitting unit, and realizes the signal transmitting function and the display function. In this way, not only the integration and functional diversity of the display module are improved, but also more complex visual effects and interactive experiences can be realized in high-end stage display applications, such as virtual green screen, real-time background replacement and interactive projection. In addition, by independently controlling the light-emitting unit and the signal transmitting unit, the display effect and signal transmission intensity can be adjusted more accurately, further improving the display quality and reliability.

[0042] It should be noted that in order to realize the infrared function of the existing display screen, an infrared sensing device is usually added around the periphery. This method requires additional equipment, which increases the design cost of the display screen. The display module provided in the embodiment of the present application integrates the light-emitting unit and the signal transmitting unit to realize the signal transmitting function and the display function. This avoids adding an infrared sensing device around the periphery of the display screen, significantly reducing the design cost of the display screen. In addition, the design of adding an infrared sensing device around the periphery will affect the overall neatness and beauty of the display screen. In addition, due to site limitations, it is inconvenient to add peripheral devices. In addition, the existing design also requires the addition of multiple interfaces, which reduces the stability of the system. The present application integrates the signal transmitting unit with the light-emitting unit, which can ensure the overall neatness and beauty of the display screen, and at the same time, there is no need to add multiple interfaces, thereby improving the stability of the system.

[0043] It should be noted that multiple light emitting arrays 104 are evenly arranged on a PCB (Printed Circuit Board), and the number of light emitting arrays 104 can be configured accordingly according to the spacing requirements between adjacent light emitting arrays 104 and the size of the display module, which is not limited here.

[0044] It should be noted that the light-emitting unit includes red LED lamp beads, green LED lamp beads and blue LED lamp beads. Since the red LED lamp beads require a voltage drive of 1.8V to 2.3V, the green LED lamp beads and the blue LED lamp beads require a voltage drive of 2.5V to 3.1V, and the signal transmission unit includes infrared LED lamp beads. The driving voltage of the infrared LED lamp beads is generally 1.2V to 1.7V, so they are generally driven by a voltage of 2.8V. Therefore, the red, green, blue LED lamp beads and the infrared LED lamp beads in this application are powered separately, which can more accurately control the power supply of each lamp bead, ensure the stability and reliability of each lamp bead during operation, and thus improve energy efficiency.

[0045] In one embodiment of the present application, Figure 2 As shown, the power supply module 101 includes a power supply unit 1011 and a first voltage conversion unit 1012 . The power supply unit 1011 is electrically connected to the first driving module 102 and the first voltage conversion unit 1012 , respectively. The first voltage conversion unit 1012 is electrically connected to the second driving module 103 .

[0046] Specifically, the power supply unit 1011 can provide a first power supply voltage and a first voltage, and transmit the first power supply voltage to the first driving module 102, and transmit the first voltage to the first voltage conversion unit 1012. The first voltage conversion unit 1012 converts the first voltage into a second power supply voltage, and outputs the second power supply voltage to the second driving module 103. The first power supply voltage is used to power all red, green and blue LED lamp beads, and the second power supply voltage is used to power all infrared LED lamp beads.

[0047] It should be noted that the first supply voltage and the first voltage output by the power supply unit 1011 may be the same or different. For example, the power supply unit 1011 serves as a standard voltage unit and outputs a standard voltage of 5 V. In this case, the first supply voltage and the first voltage are both 5 V. The first voltage conversion unit 1012 serves as a step-down unit, which steps down the 5 V voltage to obtain a second supply voltage, and then transmits the second supply voltage to the second driving module 103.

[0048] In one embodiment of the present application, the first voltage conversion unit 1012 includes a first voltage conversion chip, an input end of the first voltage conversion chip is electrically connected to the power supply unit 1011 , and an output end of the first voltage conversion chip is electrically connected to the second driving module 103 .

[0049] Specifically, the first voltage conversion chip can step down the first voltage output by the power supply unit 1011, and output the stepped-down voltage (second power supply voltage) to the second driving module 103. At the same time, the first voltage conversion chip also has a voltage stabilization function, and even if the input first voltage fluctuates, the first voltage conversion chip can provide a stable second power supply voltage, thereby improving the reliability of the power supply module 101.

[0050] In one embodiment of the present application, Figure 2 As shown, the first driving module 102 includes a switch unit 1021 and a constant current driving unit 1022, the switch unit 1021 is electrically connected to the power supply module 101 and the first ends of all the light-emitting units respectively, and the constant current driving unit 1022 is electrically connected to the second ends of all the light-emitting units.

[0051] Specifically, the first end of the light-emitting unit is the positive electrode of the red, green, and blue LED lamp beads, and the second end of the light-emitting unit is the negative electrode of the red, green, and blue LED lamp beads. The switch unit 1021 is used to be turned on according to the first control signal, so that the first power supply voltage output by the power supply module 101 can be transmitted to the positive electrode of all red, green, and blue LED lamp beads. The constant current drive unit 1022 is used to receive the third control signal and output the corresponding level signal to the negative electrode of all red, green, and blue LED lamp beads according to the third control signal. When there is a power supply circuit between the positive and negative electrodes of all red, green, and blue LED lamp beads, all red, green, and blue LED lamp beads are powered and emit light.

[0052] It should be noted that the first control signal and the third control signal can be output by one controller, reducing the number of controllers used, thereby simplifying circuit design and wiring. The first control signal and the third control signal can also be output by multiple controllers, and multiple controllers can provide redundancy, making the system design more modular and improving the reliability of the system.

[0053] In one embodiment of the present application, Figure 3 As shown, the switch unit 1021 includes a first switch tube, a second switch tube and a third switch tube. The control ends of the first switch tube, the second switch tube and the third switch tube are all used to receive a first control signal. The first conduction end of the first switch tube, the first conduction end of the second switch tube and the first conduction end of the third switch tube are all electrically connected to the power supply module 101. The second conduction end of the first switch tube is electrically connected to the positive poles of all red LED lamp beads, the second conduction end of the second switch tube is electrically connected to the positive poles of all green LED lamp beads, and the second conduction end of the third switch tube is electrically connected to the positive poles of all blue LED lamp beads.

[0054] Specifically, the first switch tube, the second switch tube and the third switch tube are all used as switch devices, play a switch role, and are all used to be turned on according to the first control signal. Figure 3 CTR1-1, CTR1-2 and CTR1-3 in the circuit are all first control signals. The first switch tube is used to conduct according to CTR1-1, so that the first power supply voltage output by the power supply module 101 is transmitted to the positive poles of all red LED lamp beads, thereby powering all red LED lamp beads. The second switch tube is used to conduct according to CTR1-2, so that the first power supply voltage output by the power supply module 101 is transmitted to the positive poles of all green LED lamp beads, thereby powering all green LED lamp beads. The third switch tube is used to conduct according to CTR1-3, so that the first power supply voltage output by the power supply module 101 is transmitted to the positive poles of all blue LED lamp beads, thereby powering all blue LED lamp beads.

[0055] It should be noted that other switching devices may be used to replace the switching tube, such as a triode, an electronic switch, etc., and the switching device is not limited here. Figure 4 Only the circuit in which the switch tube is used as the switch unit 1021 is shown, wherein Q1 can represent the first switch tube, the second switch tube and the third switch tube, that is, the models of the first switch tube, the second switch tube and the third switch tube can all be selected as D4973.

[0056] In one embodiment of the present application, Figure 3As shown, the constant current driving unit 1022 includes a first constant current driving chip, a second constant current driving chip and a third constant current driving chip. The first constant current driving chip is electrically connected to the negative poles of all red LED lamp beads, the second constant current driving chip is electrically connected to the negative poles of all green LED lamp beads, and the third constant current driving chip is electrically connected to the negative poles of all blue LED lamp beads.

[0057] Specifically, each constant current driver chip is connected to the negative pole of all LED lamp beads of the corresponding color, and is used to provide a power supply current loop for all LED lamp beads of the corresponding color. When the switch unit 1021 (the first switch tube, the second switch tube and the third switch tube) is turned on, all LED lamp beads of three colors are powered and emit light. Since each constant current driver chip independently controls the LED lamp beads of one color, the current of each color can be adjusted independently to achieve more refined color control. If a certain color of LED lamp beads or constant current driver chip fails, it will not affect the normal operation of LED lamp beads of other colors, thereby improving the reliability of the system. In addition, the constant current driver chip usually has an overheating protection function to prevent the LED lamp beads from being damaged by overheating.

[0058] It should be noted that the constant current driver chip can ensure the stability of the output current, and different LED lamp beads (red, green, blue) require different currents to maintain the consistency of color temperature. The constant current driver chip can also ensure that each color LED lamp bead obtains the required current to maintain color consistency.

[0059] In one embodiment of the present application, Figure 3 As shown, the second driving module 103 includes a fourth switch tube and a fourth constant current driving chip, the control end of the fourth switch tube is used to receive the second control signal, the first conduction end of the fourth switch tube is electrically connected to the power supply module 101, the second conduction end of the fourth switch tube is electrically connected to the positive poles of all infrared LED lamp beads, and the fourth constant current driving chip is electrically connected to the negative poles of all infrared LED lamp beads.

[0060] Specifically, the fourth switch tube acts as a switching device and plays a switch role. It is used to be turned on according to the second control signal, so that the second power supply voltage output by the power supply module 101 is transmitted to the positive pole of all infrared LED lamp beads. At the same time, the negative poles of all infrared LED lamp beads are connected to the fourth constant current drive chip. When the fourth switch tube is turned on, all infrared LED lamp beads are powered and emit infrared light.

[0061] It should be noted that the circuit diagram of the fourth switch tube is as follows: Figure 5 As shown, Q2 can represent the fourth switch tube, that is, the model of the fourth switch tube can be selected as D4973. The schematic diagram of the four constant current drive chips is as follows Figure 6As shown, from top to bottom, IUX1 and IUX2 are both fourth constant current driver chips for driving infrared LED lamp beads. IUR1 and IUR2 are both first constant current driver chips for driving red LED lamp beads. IUG1 and IUG2 are both second constant current driver chips for driving green LED lamp beads. IUB1 and IUB2 are both third constant current driver chips for driving blue LED lamp beads. The SIN pin of each constant current driver chip is used as an input pin to receive the corresponding control signal; SOUT is used as an output pin for transmitting control data; the VCC pin is used to receive the first power supply voltage, and the functions of other pins are all prior art and will not be described in detail here.

[0062] In one embodiment of the present application, Figure 7 As shown, the display module further includes a signal amplifying module 105 and a decoding module 106 , and the decoding module 106 is electrically connected to the signal amplifying module 105 , the first driving module 102 , and the second driving module 103 , respectively.

[0063] Specifically, the signal amplification module 105 is used to amplify the first control signal, thereby enhancing the transmission distance of the signal, and the amplified signal is the third control signal. Then the third control signal is transmitted to the decoding module 106, the first driving module 102 and the second driving module 103 respectively. The decoding module 106 is used to decode the third control signal and output a decoding signal to the first switch tube, the second switch tube, the third switch tube in the first driving module 102 and the fourth switch tube in the second driving module 103 to control the conduction of the first switch tube, the second switch tube, the third switch tube and the fourth switch tube.

[0064] It should be noted that the signal amplification module 105 may include an operational amplifier for signal amplification and a filter for filtering out interference signals, etc., which is not limited here.

[0065] It should be noted that the first control signal includes an infrared control signal, such as a control signal sent by a remote control device, which is used to receive and process signals from an infrared remote control or an infrared sensor. The first control signal also includes a control signal for display data, which is used to control the display content and parameters of a display device such as an LED display screen. The first control signal can control the brightness, contrast, color, etc. of the red, green, and blue LED lamp beads, thereby controlling the text, image, video, and other information displayed on the LED display screen. The first control signal can also control the display mode of the LED display device, such as scrolling display, static display, animation display, etc.

[0066] In one embodiment of the present application, the decoding module 106 includes a decoder chip UA1. The schematic diagram of the decoder chip UA1 is as follows: Figure 8As shown, the model of the decoder chip UA1 is 74HC138, which is used to convert a 3-bit binary input signal into an 8-bit output signal, wherein the decoder chip UA1 can output a corresponding first control signal to the first switch tube, the second switch tube and the third switch tube in the switch unit 1021, and can also output a corresponding second control signal to the fourth switch tube.

[0067] The present application also discloses a display system, including a control module and the above-mentioned display module, wherein the control module is electrically connected to the first driving module 102 and the second driving module 103 in the display module respectively.

[0068] Specifically, the control module is used to output a first control signal to the first driving module 102 to realize powering the light-emitting unit to meet the needs of the user. The control module is also used to output a second control signal to the second driving module 103 to realize powering the signal transmitting unit to meet the needs of the user. The display system adopts the above-mentioned display module to improve the stability and reliability of the display system, and can more flexibly adjust the power supply of the light-emitting unit and the signal transmitting unit, and provide personalized display and function settings.

[0069] It should be noted that if Fig. 9 As shown, the control module may include an MCU (Microprogrammed Control Unit) and peripheral circuits, a temperature acquisition unit, a voltage acquisition unit, a download interface circuit and an upgrade indication. Among them, the temperature acquisition unit includes a temperature sensor, which is mainly used to collect and monitor the real-time temperature of the signal transmitting unit board so that the MCU can control the intensity of the infrared light emitted by the signal transmitting unit. The voltage acquisition unit is used to collect the power supply voltage and the voltage of the system in real time to ensure the stable operation of the MCU system. The MCU peripheral circuit can ensure that the MCU can start and work normally. The download interface circuit can use the download interface on the MCU to download the MCU program and series upgrades. The upgrade indication is an indication of the system's operating status when downloading the program and upgrading the system.

[0070] The present application also discloses a display screen, including the above-mentioned display system. The display screen adopts the above-mentioned display system, which can not only provide high-quality display effects, but also has the characteristics of low power consumption, low cost and high reliability, thereby improving the applicability of the display screen.

[0071] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display module, characterized in that: It includes a power supply module, a first driving module, a second driving module and a plurality of light-emitting arrays, each of the light-emitting arrays includes a light-emitting unit and a signal transmitting unit, the power supply module is electrically connected to the first driving module and the second driving module respectively, the first driving module is electrically connected to the light-emitting units in all the light-emitting arrays, and the second driving module is electrically connected to the signal transmitting units in all the light-emitting arrays; The first driving module is used to receive a first control signal, and transmit the first supply voltage output by the power supply module to all the light-emitting units according to the first control signal; the second driving module is used to receive a second control signal, and transmit the second supply voltage output by the power supply module to all the signal emitting units according to the second control signal.

2. The display module according to claim 1, characterized in that: The power supply module includes a power supply unit and a first voltage conversion unit, the power supply unit is electrically connected to the first driving module and the first voltage conversion unit respectively, and the first voltage conversion unit is electrically connected to the second driving module; The power supply unit is used to output the first power supply voltage to the first driving module, and output the first voltage to the first voltage conversion unit; The first voltage conversion unit is used for converting the first voltage into the second power supply voltage, and outputting the second power supply voltage to the second driving module.

3. The display module according to claim 2, characterized in that: The first voltage conversion unit includes a first voltage conversion chip, an input end of the first voltage conversion chip is electrically connected to the power supply unit, and an output end of the first voltage conversion chip is electrically connected to the second driving module.

4. The display module according to claim 1, characterized in that: The first driving module comprises a switch unit and a constant current driving unit, the switch unit is electrically connected to the power supply module and the first ends of all the light-emitting units respectively, and the constant current driving unit is electrically connected to the second ends of all the light-emitting units; The switch unit is used to be turned on according to the first control signal, and the constant current drive unit is used to receive a third control signal and output corresponding level signals to the second ends of all the light-emitting units according to the third control signal.

5. The display module according to claim 4, characterized in that: The light-emitting unit includes red LED lamp beads, green LED lamp beads and blue LED lamp beads, and the switch unit includes a first switch tube, a second switch tube and a third switch tube. The control ends of the first switch tube, the second switch tube and the third switch tube are all used to receive the first control signal. The first conduction end of the first switch tube, the first conduction end of the second switch tube and the first conduction end of the third switch tube are all electrically connected to the power supply module. The second conduction end of the first switch tube is electrically connected to the positive poles of all the red LED lamp beads, the second conduction end of the second switch tube is electrically connected to the positive poles of all the green LED lamp beads, and the second conduction end of the third switch tube is electrically connected to the positive poles of all the blue LED lamp beads.

6. The display module according to claim 5, characterized in that: The constant current drive unit includes a first constant current drive chip, a second constant current drive chip and a third constant current drive chip, the first constant current drive chip is electrically connected to the negative poles of all the red LED lamp beads, the second constant current drive chip is electrically connected to the negative poles of all the green LED lamp beads, and the third constant current drive chip is electrically connected to the negative poles of all the blue LED lamp beads.

7. The display module according to claim 1, characterized in that: The signal transmitting unit includes an infrared LED lamp bead, the second driving module includes a fourth switch tube and a fourth constant current driving chip, the control end of the fourth switch tube is used to receive the second control signal, the first conduction end of the fourth switch tube is electrically connected to the power supply module, the second conduction end of the fourth switch tube is electrically connected to the positive poles of all the infrared LED lamp beads, and the fourth constant current driving chip is electrically connected to the negative poles of all the infrared LED lamp beads.

8. The display module according to any one of claims 1 to 7, characterized in that: The display module further includes a signal amplifying module and a decoding module, and the decoding module is electrically connected to the signal amplifying module, the first driving module and the second driving module respectively; The signal amplification module is used to amplify the first control signal to obtain a third control signal, and transmit the third control signal to the decoding module, the first driving module and the second driving module respectively; The decoding module is used to decode the third control signal and output decoding signals to the first driving module and the second driving module respectively.

9. A display system, characterized in that: It comprises a control module and the display module according to any one of claims 1 to 8, wherein the control module is electrically connected to a first driving module and a second driving module in the display module respectively; The control module is used to output a first control signal to the first driving module, and is also used to output a second control signal to the second driving module.

10. A display screen, characterized in that: A display system comprising the display system of claim 9.

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