LED display module, LED display system and electronic equipment

Abstract

The utility model provides an LED display module, an LED display system and electronic equipment, the LED display module comprises an LED display control chip and a plurality of LED lamps, the LED display control chip comprises a signal processing circuit, a voltage stabilizing circuit and a display control circuit, and the signal processing circuit comprises a processing unit, a power management unit and a display data processing unit. When the power management unit judges that the display type flag bit of the LED display module corresponds to the all-black display type, namely the display data is all-black data, a sleep control signal is generated to control the display control circuit to sleep, and meanwhile voltage is stopped being supplied to the display data processing unit by controlling the voltage stabilizing voltage. Therefore, when the LED display module is in an all-black display state, a circuit related to display is dormant, so that the energy consumption of an LED display control chip is reduced, and the low-power-consumption design is realized.

Description

Technical Field

[0001] The utility model relates to the field of electronic technology, and in particular to an LED display module, an LED display system and electronic equipment. Background Art

[0002] In LED display systems, high power consumption means more energy consumption, causing the display system to overheat, affecting the life and performance of the display system. Traditional LED display control chips achieve low-power design by optimizing the chip circuit structure and simplifying the chip peripheral circuits, thereby improving the overall energy efficiency of the LED display system. Although optimizing the chip circuit structure and simplifying the chip peripheral circuits have reduced the power consumption of the display chip to a certain extent, the effect is limited. In the application scenario of the LED display system, when most LED display control chips are in the full-black data display state, the LED lights controlled by the LED display control chip are off, but the display-related circuits inside the chip are still working, resulting in unnecessary energy consumption. Therefore, exploring the sleep problem of the display-related circuits inside the LED display control chip when the LED display control chip is in the full-black data display state is the key to reducing the power consumption of the LED display control chip. Utility Model Content

[0003] The utility model provides an LED display module, an LED display system and an electronic device, aiming to solve the problem in the related art that in the fully black data display state, the circuits related to the display inside the LED display control chip are still working, resulting in unnecessary energy consumption.

[0004] In order to solve the above technical problems, the first aspect of the present invention provides an LED display module, including: an LED display control chip and multiple LED lights, the LED display control chip including a signal processing circuit, a voltage stabilizing circuit and a display control circuit, the signal processing circuit including a processing unit, a power management unit and a display data processing unit; the voltage stabilizing circuit is electrically connected to the processing unit, the power management unit and the display data processing unit respectively; the processing unit is electrically connected to the power management unit and the display data processing unit respectively and is used to be electrically connected to an external LED display module; the display control circuit is electrically connected to the display data processing unit, the power management unit and the LED lights respectively.

[0005] A second aspect of the present invention provides an LED display system, comprising a plurality of LED display modules as described in the first aspect of the present invention, wherein the plurality of LED display modules are electrically connected in sequence.

[0006] A third aspect of the present invention provides an electronic device, comprising the LED display module as described in the first aspect of the present invention or the LED display system as described in the second aspect of the present invention.

[0007] From the above description, it can be seen that the present application determines through the power management unit that the display type flag of the LED display module corresponds to the full-black display type, that is, when the display data is full-black data, a sleep control signal is generated to control the display control circuit to sleep, and at the same time, by controlling the regulated voltage to stop providing voltage to the display data processing unit, thereby controlling the display data processing unit to sleep. In this way, when the LED display module is in the full-black display state, the display-related circuits can be put into sleep, so as to reduce the energy consumption of the LED display control chip and achieve low-power design. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic structural diagram of a first LED display module according to an embodiment of the present utility model;

[0009] Figure 2 This is a schematic structural diagram of a second LED display module according to an embodiment of the present invention;

[0010] Figure 3 This is a structural diagram of a first voltage stabilizing unit according to an embodiment of the present utility model;

[0011] Figure 4 This is a structural diagram of the first second voltage stabilizing unit of an embodiment of the present utility model;

[0012] Figure 5 This is a structural diagram of a second voltage stabilizing unit of a second embodiment of the present utility model;

[0013] Figure 6 This is a schematic structural diagram of a power management unit according to an embodiment of the present utility model;

[0014] Figure 7 This is a schematic diagram of related signal logic of a power management unit according to an embodiment of the utility model;

[0015] Figure 8 This is a schematic structural diagram of a third LED display module according to an embodiment of the present invention;

[0016] Figure 9 This is a schematic structural diagram of a fourth LED display module according to an embodiment of the present invention;

[0017] Figure 10 It is a structural diagram of an LED display system according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0019] In the related art, when the data is displayed in full black, the display-related circuits inside the LED display control chip are still working, resulting in unnecessary energy consumption. Therefore, an embodiment of the present invention provides an LED display module.

[0020] like Figure 1 The figure shows the structure of the first LED display module provided by the embodiment of the present application. The LED display module includes: an LED display control chip and multiple LED lights. The LED display control chip includes a signal processing circuit, a voltage stabilization circuit, and a display control circuit. The signal processing circuit includes a processing unit, a power management unit, and a display data processing unit. The processing unit and display data processing unit can be processing chips such as ASICs (application-specific integrated circuits), FPGAs (field-programmable gate arrays), and DSPs (digital signal processors).

[0021] Among them, the voltage stabilizing circuit is configured to: output a first voltage to the processing unit and the power management unit, and output a second voltage to the display data processing unit; the processing unit is configured to: parse the first display control signal to obtain the target display data information of the LED display control chip, and generate a second display control signal that does not contain the target display data information, transmit the target display data information to the power management unit and the display data processing unit respectively, and transmit the second display control signal to the external LED display module; the display data processing unit is configured to: generate a switch control signal according to the target display data information and transmit it to the display control circuit; the display control circuit is configured to: control the corresponding LED light to enter the working state according to the switch control signal; the power management unit is configured to: if the display type flag in the target display data information corresponds to the all-black display type, then control the voltage stabilizing circuit to stop outputting the second voltage, and control the display control circuit to stop working.

[0022] Specifically, in this embodiment, the voltage stabilizing circuit provides a stable power supply voltage to the processing unit, the power management unit, and the display data processing unit. After receiving a first display control signal from an external input, the input unit parses the first display control signal to obtain the target display data information of the LED display module. The target display data information includes display type flag information and display data of each LED light, such as the R, G, and B data information of the LED display module. At the same time, the processing unit also generates a second display control signal, which includes display data information of the remaining LED display modules but does not include the target display data information. The processing unit sends the target display data information to the power management unit and the display data processing unit, and simultaneously transmits the second display control signal to the LED display control chip in the next LED display module. The display data processing unit converts the target display data information into a switch signal that can be recognized by the display control circuit, so as to control the corresponding LED light to enter the working state through the display control circuit. When the power management unit determines that the display type flag of the LED display module corresponds to the full-black display type, that is, when the display data is full-black data, it will generate a sleep control signal to control the display control circuit to sleep, and at the same time stop providing voltage to the display data processing unit by controlling the regulated voltage, thereby controlling the display data processing unit to sleep. In this way, when the LED display module is in the full-black display state, the display-related circuits can be put into sleep, so as to reduce the energy consumption of the LED display control chip and achieve low-power design.

[0023] like Figure 2 The figure shows the structure of the second LED display module provided in the embodiment of the present application. Figure 2 The voltage stabilizing circuit includes a first voltage stabilizing unit and a second voltage stabilizing unit. The first voltage stabilizing unit is electrically connected to the power supply, the processing unit, and the power management unit respectively. The second voltage stabilizing unit is electrically connected to the power supply, the power management unit, and the display data processing unit respectively.

[0024] Specifically, in this embodiment, the voltage stabilizing circuit includes a first voltage stabilizing unit and a second voltage stabilizing unit. The first voltage stabilizing unit provides a first voltage to the processing unit and the power management unit, and the second voltage stabilizing unit provides a second voltage to the display data processing unit.

[0025] Furthermore, if Figure 3 The figure shows a schematic diagram of the structure of a first voltage stabilizing unit provided in an embodiment of the present application, see Figure 2 and Figure 3The first voltage stabilizing unit includes a first reference voltage source, a first power tube Q1, and a capacitor C1; a first end of the first reference voltage source is electrically connected to a power supply, a second end of the first reference voltage source is electrically connected to a first end of the first power tube Q1, a third end of the first reference voltage source is grounded, a second end of the first power tube Q1 is electrically connected to the power supply, a third end of the first power tube Q1 is electrically connected to one end of the capacitor C1, the processing unit, and the power management unit, respectively, and the other end of the capacitor C1 is grounded.

[0026] Specifically, in this embodiment, after the first voltage stabilizing unit is powered on, the first reference voltage source is turned on, thereby regulating the first power transistor Q1 to output a stable first voltage, which is then provided to the processing unit and the power management unit. Furthermore, by selecting an appropriate capacitor value, the stability of the voltage stabilizing circuit can be improved, the fluctuation and jitter of the output voltage can be reduced, and the output voltage can be kept stable within a certain range.

[0027] Furthermore, if Figure 4 The diagram shows the structure of the first second voltage stabilizing unit provided in the embodiment of the present application, see Figure 2 and Figure 4 The second voltage stabilizing unit includes a second reference voltage source, an error amplifier, a first switch tube K10, a second switch tube K11, a second power tube Q2, and a feedback unit; the first ends of the first switch tube K10 and the second switch tube K11 are both electrically connected to the power supply, the second ends of the first switch tube K10 and the second switch tube K11 are both electrically connected to the power management unit, the third end of the first switch tube K10 is electrically connected to the first end of the second reference voltage source, the third end of the second switch tube K11 is electrically connected to the first end of the error amplifier, the second end of the reference voltage source is electrically connected to the second end of the error amplifier, the third end of the reference voltage source is grounded, the third end of the error amplifier is electrically connected to the feedback unit, the fourth end of the error amplifier is electrically connected to the first end of the second power tube Q2, the second end of the second power tube Q2 is electrically connected to the power supply, and the third end of the second power tube Q2 is electrically connected to the feedback unit and the display data processing unit, respectively.

[0028] Furthermore, if Figure 5 The diagram shows the structure of the second voltage stabilizing unit provided in the embodiment of the present application. Figure 2 、 Figure 4 and Figure 5 The feedback unit includes a first feedback resistor R1 and a second feedback resistor R2. One end of the first feedback resistor is electrically connected to the third end of the second power tube Q2. The other end of the first feedback resistor is electrically connected to one end of the second feedback resistor and the third end of the error amplifier respectively. The other end of the second feedback resistor is grounded.

[0029] Specifically, in this embodiment, the second voltage stabilizing unit includes a reference voltage source, an error amplifier, a first switch tube K10, a second switch tube K11, a second power tube Q2, and a feedback unit. When the two switch tubes K10 and K11 receive a wake-up signal, the second voltage stabilizing unit is awakened, and the error amplifier adjusts the second power tube Q2 in real time through the second reference voltage source and the feedback unit to output a stable second voltage. When the two switch tubes K10 and K11 receive a sleep signal, the second voltage stabilizing unit enters a sleep state and no second voltage is output. In this embodiment, the feedback unit can be composed of two feedback resistors, which sample the output voltage through the two feedback resistors and feed it back to the error amplifier, thereby adjusting the second power tube Q2 to output a stable second voltage in real time.

[0030] like Figure 6 The figure shows a schematic diagram of the structure of a power management unit provided in an embodiment of the present application. Figure 2 and Figure 6 The power management unit includes a discriminator, an OR gate circuit, a NOT gate circuit and a latch; the discriminator is electrically connected to the processing unit, the OR gate circuit and the NOT gate circuit respectively, and the latch is electrically connected to the OR gate circuit, the NOT gate circuit, the voltage stabilizing circuit and the display control circuit respectively.

[0031] Specifically, the power management unit is configured as follows: the discriminator obtains the processing completion flag and the display type flag in the target display data information, transmits the level signal of the processing completion flag to the OR gate circuit, and transmits the level signal of the display type flag to the OR gate circuit and the NOT gate circuit respectively; when the level signals of the processing completion flag and the display type flag are both low, the OR gate circuit outputs a low level signal to the reset end of the latch; wherein, when the level signal of the processing completion flag is low, the display data processing of all LED lights is completed; when the level signal of the display type flag is low, the display type flag in the target display data information corresponds to a full black display type; when the level signal of the display type flag is low, the NOT gate circuit outputs a high level signal to the set end of the latch when the level signal of the display type flag is low; when the reset end of the latch is low and the set end is high, the voltage stabilizing circuit is controlled to stop outputting the second voltage, and the display control circuit is controlled to stop working.

[0032] In this embodiment, the LED display control chip drives the LED lights corresponding to the R, G, and B channels to display colors. Black data refers to data that turns off the LED lights, and non-black data refers to data that turns on the LED lights. Fully black data refers to data corresponding to the three LED lights R, G, and B, which are all black data. Non-fully black data refers to data corresponding to one or more of the three LED lights R, G, and B, which are non-black data. When fully black data is received, the LED display module is in a fully black display state; when non-fully black data is received, the display chip is in a non-fully black display state. The discriminator in the power management unit discriminates the display data information and obtains the display identification flag information and the processing completion flag information. When the display data corresponding to all LED lights in the display data information, such as the three LED lights R, G, and B, are all black data, the display type flag is low; otherwise, it is high. Among them, the display type flag is at a low level after power-on, and the processing unit will update the display type flag information after completing the display data processing of this chip; the processing completion flag is at a high level after power-on, and after the processing unit completes the display data processing of all chips in the system, the processing completion flag is pulled low for a certain period of time and then restored to a high level; the latch outputs a low level as a wake-up signal and a high level as a sleep signal; after the latch is powered on, the output end is at a low level, the display type flag is at a low level and after a logic NOT gate operation, the set end of the latch receives a high level signal, which is invalid and will not cause the latch to change the level type of the output signal, while the processing completion flag is at a high level, and after a logic OR operation is performed on the display type flag and the processing completion flag, the reset end of the latch receives a high level signal, which is invalid, and the latch remains at a low level, i.e., it outputs a wake-up signal.

[0033] The relevant signal logic of the power management unit is as follows Figure 7 As shown, when the display data is not completely black, the display type flag is updated to a high level. After a logical NOT gate operation, the set terminal of the latch receives a low-level signal, which is valid. After the latch is set, it outputs a wake-up signal to the two switch tubes K10 and K11 of the second voltage stabilization unit, closing them. At this time, the display data processing unit receives the target display data information and generates a switch control signal to transmit to the display control circuit. At the same time, after the latch is set, it outputs a wake-up signal to the display control circuit to control its opening. At this time, the processing completion flag is high. After the display type flag and the processing completion flag are logically ORed, the latch reset terminal receives a high-level signal, which is invalid, and the latch continues to output the wake-up signal. After the processing completion flag is updated, it is low for a certain period of time. The display type flag is high. After the logical OR gate operation, the latch reset terminal receives a high-level signal, which is invalid, and the latch continues to output the wake-up signal.

[0034] When the display data is all black data, the display type flag is updated to a low level. After the logic NOT gate operation, the set end of the latch receives a high level signal, which is invalid. At this time, the processing completion flag is high. After the display type flag and the processing completion flag are logically ORed, the latch reset end receives a high level signal, which is invalid. The latch maintains the wake-up / sleep signal (that is, the previous signal state). After the processing completion flag is updated, the display type flag is low during a certain period of low level. After the logic OR operation, the latch reset end receives a low level signal, which is valid. The latch outputs a sleep signal to the two switch tubes K10 and K11 of the second voltage stabilizing unit to disconnect it, thereby stopping power supply to the display data processing unit. At this time, the display data processing unit has no response to the target display data information and does not output a switch control signal to the display control unit. At the same time, the latch outputs a sleep signal to the display control circuit to control it to stop working. Therefore, in the all-black display state, the circuits that are still working in the LED display module are as follows. Figure 8 As shown, the second voltage stabilizing unit in the voltage stabilizing circuit, the display data processing unit in the signal processing circuit, the reference current source in the display control circuit, the LED light switch control unit, and the clock control unit all enter a dormant state. The first voltage stabilizing unit, however, continues to provide the first voltage to the processing unit and power management unit in the signal processing circuit, maintaining data processing between the LED display control chip and data communication between the next LED display control chip. As a result, the LED display control chip reduces energy consumption in the second voltage stabilizing unit in the voltage stabilizing circuit, the display data processing unit in the signal processing circuit, the reference current source in the display control circuit, the LED light switch control unit, and the clock control unit. Simultaneously, the LED lights corresponding to the R, G, and B channels are turned off, effectively reducing energy consumption in the LED display control chip and achieving a low-power design.

[0035] like Figure 9 The fourth embodiment of the present invention provides a schematic diagram of the structure of the LED display module, see Figure 2 and Figure 9The display control circuit includes a reference current source, a clock control unit, an LED light switch control unit, and a third switch tube K2. The first end of the third switch tube K2 is electrically connected to a power supply, the second end of the third switch tube K2 is electrically connected to a power management unit, the third end of the third switch tube K2 is electrically connected to the first end of the reference current source, the clock control unit, and the LED light switch control unit, respectively. The second end of the LED light switch control unit is electrically connected to the clock control unit, the third end of the LED light switch control unit is electrically connected to the reference current source, the fourth end of the LED light switch control unit is electrically connected to a display data processing unit, and the fifth end of the LED light switch control unit is electrically connected to a plurality of LED lights. The LED light switch control unit is configured to control the corresponding LED light to enter an operating state according to a switch control signal. The LED light switch control unit is a switch array, each switch corresponding to a corresponding LED light. By turning the corresponding switch on or off, the corresponding LED light can be turned on or off.

[0036] Specifically, such as Figure 9 As shown, in this embodiment, the display control circuit structure includes a reference current source, a clock control unit, an LED light switch control unit and a third switch tube K2. In addition, Figure 9 The switch tube K1 in the display includes a first switch tube K10 and a second switch tube K11. When the third switch tube K2 receives a wake-up signal from the power management unit, the display control circuit is awakened, the reference current source provides a reference current to the LED light switch control unit, and the clock control unit provides a clock signal to the LED light switch control unit. After receiving the switch control signal from the display data processing unit, the LED light switch control unit lights up the corresponding R, G, and B LEDs. When the third switch tube K2 receives a sleep signal from the power management unit, the reference current source, the clock control unit, and the LED light switch control unit lose power input, the display control circuit enters a sleep state, and the corresponding R, G, and B LEDs go out.

[0037] The LED display module provided in the embodiment of the present application determines through the power management unit that the display type flag of the LED display module corresponds to the full-black display type, that is, when the display data is full-black data, a sleep control signal is generated to control the display control circuit to sleep, and at the same time, the voltage regulator stops providing voltage to the display data processing unit by controlling the voltage regulator, thereby controlling the display data processing unit to sleep. In this way, when the LED display module is in the full-black display state, the display-related circuits can be put into sleep, thereby reducing the energy consumption of the LED display control chip and realizing a low-power design.

[0038] An embodiment of the present application further provides an LED display system, which includes a plurality of the above-mentioned LED display modules, and the plurality of LED display modules are electrically connected in sequence.

[0039] Specifically, Figure 10 Taking the LED display system shown as an example, this LED display system includes four LED display modules. Assuming that the display data received by LED display control chip 1 is {R=1, G=1, B=1}, the display data received by LED display control chip 2 is {R=1, G=1, B=0}, and the display data received by LED display control chip 3 is {R=1, G=0, B=0}, LED display control chips 1, 2, and 3 enter a non-fully black display state. The LED light switch control unit receives the switch control signal transmitted by the display data processing unit and lights up the corresponding LED lights. If the display data received by LED display control chip 4 is {R=0, G=0, B=0}, LED display control chip 4 enters a fully black display state. The first voltage stabilizing unit continuously provides voltage to the processing unit and power management unit of the signal processing circuit, maintaining data communication between the LED display control chip's data processing and the next chip. When LED display control chip 4 receives fully black display data, the LED lights corresponding to the R, G, and B channels are turned off, achieving the same display effect as a traditional LED display module. However, compared with the traditional LED display module, the LED display module in this embodiment reduces the energy consumption of the second voltage stabilizing unit of the voltage stabilizing circuit, the display data processing unit of the signal processing circuit, the reference current source of the display control circuit, the LED light switch control unit and the clock control unit when processing full-black data, thereby reducing heat generation, lowering heat dissipation requirements, and improving overall energy efficiency.

[0040] The present application also provides an electronic device including the above-mentioned LED display module or LED display system, wherein the electronic device may include but is not limited to a lighting product, a power supply product, and a display device.

[0041] It should be noted that the various embodiments in the present invention are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other.

[0042] It should also be noted that, in the present invention, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0043] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to be applied in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. An LED display module, characterized in that: include: An LED display control chip and a plurality of LED lights, wherein the LED display control chip includes a signal processing circuit, a voltage stabilizing circuit, and a display control circuit, and the signal processing circuit includes a processing unit, a power management unit, and a display data processing unit; The voltage stabilizing circuit is electrically connected to the processing unit, the power management unit and the display data processing unit respectively; the processing unit is electrically connected to the power management unit and the display data processing unit respectively and is used to be electrically connected to an external LED display module; the display control circuit is electrically connected to the display data processing unit, the power management unit and the LED lamp respectively.

2. The LED display module according to claim 1, characterized in that: The voltage stabilizing circuit includes a first voltage stabilizing unit and a second voltage stabilizing unit. The first voltage stabilizing unit is electrically connected to the power supply, the processing unit, and the power management unit respectively. The second voltage stabilizing unit is electrically connected to the power supply, the power management unit, and the display data processing unit respectively.

3. The LED display module according to claim 2, characterized in that: The first voltage stabilizing unit includes a first reference voltage source, a first power tube and a capacitor; A first end of the first reference voltage source is electrically connected to a power supply, a second end of the first reference voltage source is electrically connected to a first end of the first power tube, a third end of the first reference voltage source is grounded, a second end of the first power tube is electrically connected to a power supply, a third end of the first power tube is electrically connected to one end of the capacitor, the processing unit, and the power management unit, respectively, and the other end of the capacitor is grounded.

4. The LED display module according to claim 2, characterized in that: The second voltage stabilizing unit includes a second reference voltage source, an error amplifier, a first switch tube, a second switch tube, a second power tube and a feedback unit; The first ends of the first switching tube and the second switching tube are both electrically connected to the power supply, the second ends of the first switching tube and the second switching tube are both electrically connected to the power management unit, the third end of the first switching tube is electrically connected to the first end of the second reference voltage source, the third end of the second switching tube is electrically connected to the first end of the error amplifier, the second end of the reference voltage source is electrically connected to the second end of the error amplifier, the third end of the reference voltage source is grounded, the third end of the error amplifier is electrically connected to the feedback unit, the fourth end of the error amplifier is electrically connected to the first end of the second power tube, the second end of the second power tube is electrically connected to the power supply, and the third end of the second power tube is electrically connected to the feedback unit and the display data processing unit respectively.

5. The LED display module according to claim 4, characterized in that: The feedback unit includes a first feedback resistor and a second feedback resistor, one end of the first feedback resistor is electrically connected to the third end of the second power tube, the other end of the first feedback resistor is electrically connected to one end of the second feedback resistor and the third end of the error amplifier respectively, and the other end of the second feedback resistor is grounded.

6. The LED display module according to claim 1, characterized in that: The power management unit includes a discriminator, an OR gate circuit, a NOT gate circuit and a latch; the discriminator is electrically connected to the processing unit, the OR gate circuit and the NOT gate circuit respectively, and the latch is electrically connected to the OR gate circuit, the NOT gate circuit, the voltage stabilizing circuit and the display control circuit respectively.

7. The LED display module according to claim 6, characterized in that: The OR gate circuit is electrically connected to the reset terminal of the latch, and the NOT gate circuit is electrically connected to the set terminal of the latch.

8. The LED display module according to claim 1, characterized in that: The display control circuit includes a reference current source, a clock control unit, an LED light switch control unit and a third switch tube; A first end of the third switch tube is electrically connected to a power supply, a second end of the third switch tube is electrically connected to the power management unit, a third end of the third switch tube is electrically connected to the reference current source, the clock control unit, and the first end of the LED light switch control unit, respectively, a second end of the LED light switch control unit is electrically connected to the clock control unit, a third end of the LED light switch control unit is electrically connected to the reference current source, a fourth end of the LED light switch control unit is electrically connected to the display data processing unit, and a fifth end of the LED light switch control unit is electrically connected to each of the plurality of LED lights.

9. An LED display system, characterized in that: The device comprises a plurality of LED display modules according to any one of claims 1 to 8, wherein the plurality of LED display modules are electrically connected in sequence.

10. An electronic device, characterized in that: It comprises the LED display module according to any one of claims 1 to 8 or the LED display system according to claim 9.

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