TWI525590B - Method and apparatus for performing light emitting diode display control - Google Patents

Description

Method and device for performing LED display control

The present invention relates to the control of a Light Emitting Diode (LED) display system, and more particularly to a method and related apparatus for performing LED display control.

The traditional LED display system, such as a large LED display system installed on the exterior wall of the building, is quite practical for playing advertisements, promoting videos, and the like. With the popularity of the use range, the overall size of the conventional LED display system often needs to increase, which causes some problems. For example, according to related technologies such as the architecture of a Micro Control Unit (MCU), great power consumption becomes a thorny problem. For another example, limited by the data processing speed of the micro control unit, the data transmission speed is also limited, so that the conventional LED display system with an increased size has a problem of insufficient picture update rate. For another example, limited to the control structure of the micro control unit, controlling the plurality of LED strings will increase the number of connecting lines, and the conventional LED display system has an excessive number of connecting lines. . Therefore, there is a need for a novel method to enhance the associated control of a light-emitting diode display system and improve the basic architecture of the entire display system without any side effects.

An object of the present invention is to provide a method and apparatus for performing display control of a light emitting diode (LED) to solve the above problems.

Another object of the present invention is to provide a method and apparatus for performing display control of a light-emitting diode to realize a large-sized light-emitting diode display system without causing any side effects.

A preferred embodiment of the present invention provides a method for performing display control of a light emitting diode, wherein the method is applied to a light emitting diode display system, and the light emitting diode display system includes a plurality of light emitting diodes The body module, and the plurality of light emitting diode modules form a light emitting diode display array. The method includes the steps of: receiving a set of data in a data sequence, and temporarily storing the data in a memory unit corresponding to a light emitting diode module for the light emitting diode module For display purposes; and when it is detected that the reception of the set of data has been completed, bypassing at least one subsequent set of data in the data sequence for display by other light emitting diode modules.

While providing the above method, the present invention also provides a device for performing display control of a light emitting diode, wherein the device comprises at least a portion of a light emitting diode display system, and the light emitting diode display system comprises A plurality of light emitting diode modules, and the plurality of light emitting diode modules form a light emitting diode display array. The device includes at least one level of control circuit, and the at least one level of the control circuit is coupled to the at least one light emitting diode module of the light emitting diode modules, and is configured to perform the at least one light emitting diode Display control of the module. In particular, each of the at least one level control circuit includes a data transmission controller, a switching unit, and a data processor, wherein the switching unit is disposed on one of the bypass paths of each of the level control circuits. And the data processor is coupled to the data transmission controller and the switching unit. In addition, the data transmission controller is configured to receive a group of data in a data sequence to temporarily store the data to at least one storage unit corresponding to the at least one LED module for The display of the LED module, wherein the at least one storage unit is disposed in the at least one level control circuit. In addition, the switching unit is configured to selectively enable or disable the bypass path, and the data processor is configured to process the set of data and control the switching unit. In the case that there is a subsequent group of data corresponding to the same picture in the data sequence, when detecting that the reception of the group of data has been completed, the data processor controls the switching unit to bypass the subsequent sequence in the data sequence. At least one set of data for display of other light emitting diode modules.

One of the advantages of the present invention is that the method and apparatus of the present invention can produce no side effects. A large-sized light-emitting diode display system is realized under the condition of use. In addition, the method and apparatus of the present invention can transmit data one level at a time by using serial transmission; when a certain level control circuit receives the required received data, the level control circuit can automatically transmit subsequent data to the next level. And controlling the brightness of the corresponding at least one string of LEDs according to the received data. Therefore, compared with the related art, the LED display system implemented by the method and apparatus of the present invention does not have a problem of high power consumption, a problem of insufficient screen update rate, and an excessive number of connection lines. In addition, in the preferred embodiment of the present invention, each of the stages of the LED display array requires only three serially connected lines, thereby realizing a plurality of LED display subsystems connected in series with each other. Control, at the same time, you can increase the serial length as needed.

100‧‧‧Device for LED display control

103-1, 103-2,...,103-M‧‧‧Subsystem of LED display system

105-m‧‧‧m-level control circuit

105-1,105-2,...,105-M‧‧‧Control circuit

107-m‧‧‧m-th LED module

107-1,107-2,...,107-M‧‧‧Light Emitting Diode Module

110-m‧‧‧ data transmission controller

112-m‧‧‧UART module

120-m‧‧‧ data processor

122-m‧‧‧ storage unit

124-m‧‧‧Update and Counting Control Module

130-m‧‧‧Output controller

132-m‧‧‧PWM module

150-m‧‧‧Switch unit

200‧‧‧Method for performing LED display control

210,220‧‧ steps

C(m,0),C(m,1),C(m,2),...,C(m,N-2),C(m,N-1),C(m,N)‧ ‧‧Lighting diode driving signal

D(0), D(1), D(2), ..., D(N-2), D(N-1), D(N)‧‧‧ register

DM(m,0),DM(m,1),DM(m,2),...,DM(m,N-2),DM(m,N-1),DM(m,N)‧ ‧‧Lighting diode sub-module

GND‧‧‧ Grounding terminal

IN‧‧‧ Input data

OUT‧‧‧Output data

POWER‧‧‧Power terminal

PWM(0),PWM(1),PWM(2),...,PWM(N-2),PWM(N-1),PWM(N)‧‧‧PWM submodule

RX‧‧‧ receiving terminal

SW(0), SW(1), SW(2),...,SW(N-2),SW(N-1),SW(N)‧‧‧Switch unit

TX‧‧‧Transfer terminal

1 is a schematic diagram of an apparatus for performing display control of a light-emitting diode according to a first embodiment of the present invention.

2 is a flow chart of a method for performing display control of a light-emitting diode according to an embodiment of the invention.

Figure 3 illustrates certain implementation details involved in the method of Figure 2 in one embodiment.

Figure 4 illustrates certain implementation details of the method illustrated in Figure 2 in another embodiment.

1 is a schematic diagram of an apparatus 100 for performing LED display control according to a first embodiment of the present invention, wherein the apparatus 100 includes at least a portion (eg, a portion or all) of a light emitting diode display system, The LED display system includes a plurality of LED modules, and the LED modules form a LED array. For example, the device 100 can represent one of the control circuits of the light emitting diode display system, such as an integrated circuit (IC). As another example, device 100 can represent at least one subsystem of the LED display system. For another example, the device 100 can represent all of the LED display systems, wherein the device 100 can include the plurality of LED modules.

As shown in FIG. 1 , the device 100 may include at least one level of control circuit, such as the mth stage control circuit 105-m, and at least one of the first level control circuits is coupled to at least one of the plurality of light emitting diode modules. The polar body module is configured to perform display control of the at least one light emitting diode module. In particular, each of the at least one stage control circuit, such as the mth stage control circuit 105-m, includes a data transmission controller 110-m, a data processor 120-m, an output controller 130-m, And a switching unit 150-m, wherein the switching unit 150-m is disposed on one of the m-th stage control circuits 105-m (not shown in FIG. 1), and the data processor 120-m is coupled The data transfer controller 110-m is coupled to the switching unit 150-m, and the output controller 130-m is coupled to the data processor 120-m. In addition, the device 100 may include at least one first-level LED module, such as the m-th LED module 107-m, which corresponds to the m-th stage control circuit 105 among the plurality of LED modules. m light-emitting diode module. In practice, the m-th stage control circuit 105-m can respectively transmit a plurality of driving signals {C(m, 0), C(m, 1), C(m, 2), ..., C(m, N). -2), C(m, N-1), C(m, N)} drives a plurality of light-emitting diode sub-modules in the m-th order LED module 107-m {DM(m, 0) ), DM(m,1), DM(m,2),...,DM(m,N-2),DM(m,N-1),DM(m,N)}, each of which emits light The diode sub-module DM(m,n) may comprise at least one light-emitting diode (for example one or more light-emitting diodes), and the index n may represent any one of the ranges falling within the interval [0, N] Integer. In this embodiment, the plurality of LED sub-modules {DM(m,0), DM(m,1), DM(m,2),...,DM(m,N-2) , DM (m, N-1), DM (m, N)} can be coupled to the power supply through the power terminal POWER.

Based on the architecture shown in FIG. 1, device 100 can perform display control of corresponding subsystems in the LED display system. In addition, in a state in which at least one of the above-mentioned control circuits is expanded into a plurality of control circuits, the device 100 may transmit the data one level at a time for each level of the control circuit to separately display the respective subsystems of the light-emitting diode display system. control. In particular, for each of the plurality of control circuits, the data transfer controller 110-m can be configured to receive the input data IN, and the display data IN is expected to be displayed in the mth-level LED module. The corresponding data on 107-m is temporarily stored in the m-th stage control circuit 105-m for the data processor 120-m Perform related processing. In addition, under the control of the data processor 120-m, the switching unit 150-m can selectively enable or disable the bypass path. For example, in a situation where the m-th stage control circuit 105-m is not the last-stage control circuit 105-M, when detecting that the reception of the corresponding data has been completed, the data processor 120-m controls the switching unit 150-m to bypass. The subsequent data in the data sequence is used as the output data OUT for display of other light-emitting diode modules.

In practice, in order to achieve consistency in operation of the control circuits of various levels and to save related costs, when the m-th stage control circuit 105-m is the last-stage control circuit 105-M, when the corresponding data is detected When the reception is completed, the data processor 120-m can temporarily control the switching unit 150-m to be in the bypass state, except that the data that does not normally have the same picture needs to be bypassed. For example: when m=M, the output data OUT can be invalid data. For another example, when m=M, the output signal of the data transmission controller 110-m may not contain valid data or data. Please refer to the further description of the subsequent embodiments.

2 is a flow chart of a method 200 for performing LED display control in accordance with an embodiment of the present invention. The method can be applied to the apparatus 100 shown in Fig. 1, in particular, at least the first stage control circuit described above, such as the mth stage control circuit 105-m shown in Fig. 1. The method is as follows: In step 210, the data transmission controller 110-m receives a group of data in a data sequence (for example, a data sequence to which the input data IN belongs) to temporarily store the group of data to correspond to a light emission. At least one storage unit of the diode module for displaying the LED module, wherein the at least one storage unit is disposed on at least one of the first control circuits, especially shown in FIG. The mth stage control circuit 105-m.

In step 220, when it is detected that the receiving of the group of data has been completed, the data processor 120-m controls the switching unit 150-m to bypass the subsequent at least one set of data in the data sequence for other light emitting diodes. The display of the module. In particular, in the case that the subsequent at least one set of data corresponding to the same picture exists in the data sequence, when it is detected that the receiving of the set of data has been completed, the data processor 120-m controls the switching unit 150-m. Passing at least one subsequent group of funds in the data sequence Material for display of other LED modules.

FIG. 3 illustrates some implementation details of the method 200 shown in FIG. 2 in one embodiment. According to the embodiment, the m-th stage control circuit 105-m can be implemented as an integrated circuit, wherein the receiving terminal RX and the transmitting terminal TX can be respectively used to receive the input data IN shown in FIG. 1 and transmit the image shown in FIG. The data OUT is output and the ground terminal GND can be used to ground.

As shown in FIG. 3, the data transmission controller 110-m includes a Universal Asynchronous Receiver/Transmitter (UART) module 112-m (which may be simply referred to as a "UART module"), and includes the above. The bypass path, such as the path from the receiving terminal RX, bypassing the UART module 112-m, passing through the switching unit 150-m, to the transmitting terminal TX. For example, the device 100 can transmit the data sequence described in step 210 by using serial transmission to transmit the data one level at a time, wherein the UART module 112-m can include a serial to parallel conversion (Serial to Parallel) conversion. And a circuit for extracting the set of data described in step 210 from the data sequence. In addition, the data processor 120-m includes at least one of the storage units, such as the storage unit 122-m, and includes an update and count control module 124-m, wherein the storage unit 122-m includes a plurality of registers {D ( 0), D(1), D(2), ..., D(N-2), D(N-1), D(N)}. In addition, the output controller 130-m includes a Pulse Width Modulation (PWM) module 132-m (which may be simply referred to as a "PWM module") and a plurality of switching units {SW(0), SW(1). ), SW(2), ..., SW(N-2), SW(N-1), SW(N)}, wherein the PWM module 132-m includes respectively corresponding to the plurality of switching units {SW( 0), SW (1), SW (2), ..., SW (N-2), SW (N-1), SW (N)} of a plurality of pulse width modulation sub-module {PWM (0 ), PWM (1), PWM (2), ..., PWM (N-2), PWM (N-1), PWM (N)} (may be referred to as "PWM sub-module"). As shown in Fig. 3, the plurality of LED sub-modules {DM(m,0), DM(m,1), DM(m,2),...,DM(m,N-2) Each of the light emitting diode sub-modules DM(m, n) of DM(m, N-1), DM(m, N)} may include a plurality of light emitting diodes. In this embodiment, the storage unit 122-m and the update and count control module 124-m are coupled to each other, and are respectively coupled to the UART module 112-m and the switching unit 150-m, so the update and count control module The 124-m is simultaneously coupled to the data transmission controller 110-m and the switching unit 150-m.

According to the embodiment, the update and count control module 124-m can count the received data in the data sequence to determine whether the reception of the group of data has been completed. In particular, when it is detected that the received data in the data sequence reaches a predetermined amount, the update and count control module 124-m determines that the reception of the group of data has been completed, wherein the predetermined amount is equal to the data amount of the group of data. . For example, the data amount of the group of data may be equal to (N+1) bytes, and the plurality of registers {D(0), D(1), D(2), ..., D(N- 2), each of the D(N-1), D(N)} registers D(n) can be used to temporarily store the display data of one byte, wherein the byte can represent the light emitting diode The brightness to be displayed by the secondary module DM(m,n). This is for illustrative purposes only and is not a limitation of the invention. According to some variations of the embodiment, the amount of data of the set of data may be changed, and the plurality of registers {D(0), D(1), D(2), ..., D(N) -2) The amount of data of the display data that can be stored in each of the D(N-1), D(N)} registers can also be changed.

In addition, the output controller 130-m (especially the PWM sub-module {PWM(0), PWM(1), PWM(2), ..., PWM(N-2), PWM(N-1) , PWM(N)}) may be temporarily stored in at least one of the storage units, such as the plurality of registers {D(0), D(1), D(2), ..., D(N) -2), the set of data in D(N-1), D(N)}, respectively using switching units {SW(0), SW(1), SW(2), ..., SW(N- 2), SW(N-1), SW(N)} for each of the light-emitting diodes of the m-th order LED module 107-m, drive signals {C(m, 0), C (m,1), C(m,2),...,C(m,N-2), C(m,N-1),C(m,N)} pulse width modulation The video content represented by the group of materials is displayed on the m-th LED module 107-m. In practice, the update and count control module 124-m can monitor whether a predetermined update code (Update Code) exists in the data sequence. When the predetermined update code is detected, the update and count control module 124-m can trigger an update screen, and enable the m-th LED module 107-m to start displaying the video content represented by the group of materials. The above bypass path is temporarily disabled to avoid the inability to receive subsequent pictures.

In accordance with some embodiments of the present invention, such as in accordance with some variations of the embodiment illustrated in FIG. 2, apparatus 100 includes corresponding to a plurality of levels of LED modules {107-1, 107-2, ..., 107, respectively. -M} complex level control circuit {105-1, 105-2, ..., 105-M}, and the complex level control circuit {105-1, 105-2, ..., 105-M} includes at least one of the above-mentioned control circuits, wherein the complex-level control circuits are connected in series with each other {105-1, 105-2, ..., 105-M} to The sequence receives the complex array data in the data sequence, and the complex array data includes the group of data and the subsequent at least one group of data. In particular, the device 100 can sequentially receive the complex array data in the data sequence by using the complex level control circuit {105-1, 105-2, . . . , 105-M} to temporarily store the complex array data to Corresponding to the respective storage units of the light-emitting diode modules {107-1, 107-2, ..., 107-M}, such as storage units {122-1, 122-2, ..., 122-M}, respectively For the display of the light emitting diode modules {107-1, 107-2, ..., 107-M}, wherein the storage units {122-1, 122-2, ..., 122-M} are They are respectively disposed in the complex level control circuit {105-1, 105-2, ..., 105-M}. For example, when the multi-level control circuit {105-1, 105-2, ..., 105-M} has a certain level of control circuit 105-m0 (the symbol "m0" can represent the falling into the interval [0, N-1] When any of the integers of the range is detected, the level control circuit 105-m0 can bypass the subsequent at least one set of data in the data sequence for other light emitting diode modules. For display, wherein the subsequent at least one set of data in the data sequence is output to the level one control circuit 105-(m0+1) below the stage control circuit 105-m0.

In practice, the update and count control module 124-m can monitor the data for each of the plurality of levels of control circuits {105-1, 105-2, ..., 105-M}. Whether the predetermined update code exists in the sequence, wherein the predetermined update code is used to trigger the LED display system update screen to display the video content represented by the complex array data. When the predetermined update code is detected, the respective update and count control modules {124-1, 124-2, ... of the complex level control circuits {105-1, 105-2, ..., 105-M}, 124-M} temporarily disables a plurality of bypass paths to allow the complex level control circuit {105-1, 105-2, ..., 105-M} to sequentially receive the data sequence corresponding to the next picture. Other complex array data, wherein the plurality of bypass paths are respectively disposed in the complex level control circuit {105-1, 105-2, ..., 105-M} for selectively bypassing the data sequence data.

FIG. 4 illustrates some implementation details of the method 200 shown in FIG. 2 in another embodiment. As shown in FIG. 4, the apparatus 100 can include a plurality of subsystems {103-1, 103-2, ..., 103-M} of the LED display system, and the subsystems {103-1, 103-2, ..., each of 103-M} A subsystem 103-m includes a corresponding control circuit 105-m of the complex level control circuit {105-1, 105-2, ..., 105-M}, and further includes the complex level LED module {107 Corresponding light-emitting diode module 107-m among -1, 107-2, ..., 107-M}. For ease of understanding, the LED display array is illustrated in FIG. 4, that is, the plurality of LED modules {107-1, 107-2, ..., 107-M} respectively in FIG. An array of circular patterns arranged therein, wherein each circular pattern represents a light emitting diode. This is for illustrative purposes only and is not a limitation of the invention. For example, the light-emitting diodes represented by these circular patterns may include light-emitting diodes of various colors. For another example, the light-emitting diodes represented by the circular patterns may include light-emitting diodes of different shapes.

In practice, the complex level control circuits {105-1, 105-2, ..., 105-M} can be respectively disposed in the complex level LED module {107-1, 107-2, ..., 107- The respective printed circuit boards of M}, and the ground terminal GND, the receiving terminal RX, and the transmitting terminal TX of each stage of the control circuit 105-m extend to the printed circuit board of the control circuit 105-m, respectively, to facilitate serial connection. Thus, when installing the LED display system, the installer can sequentially install the subsystems {103-1, 103-2, ..., 103-M} in a designated installation (such as the outer wall of the building), At the same time, the subsystems {103-1, 103-2, ..., 103-M} are serially connected one by one. In particular, the printed circuit board on which each level of the control circuit 105-m is located requires only three serially connected lines to realize control of a plurality of LED display subsystems connected in series with each other, and the serial length can be increased as needed. (I will increase the total number of stages M).

For example, the installer can connect the power terminals POWER on the respective printed circuit boards of each of the LED modules {107-1, 107-2, ..., 107-M} in series to be coupled to the power supply. And the respective ground terminals GND of the control circuits {105-1, 105-2, ..., 105-M} are connected in series through the printed circuit boards to be grounded together, and through the printed circuit boards. The respective receiving terminals RX of the control circuits {105-1, 105-2, ..., 105-M} are connected in series with the transmitting terminal TX one by one, wherein the transmitting terminal TX of the certain level control circuit 105-m0 is The receiving terminals RX of the next stage control circuit 105-(m0+1) are connected in series with each other.

Based on the above various embodiments, the method and apparatus of the present invention can realize a large-sized light-emitting diode display system without causing any side effects. In addition, the method of the present invention The device can transmit the data one level at a time by using serial transmission, wherein each level control circuit can use the UART module to perform data conversion to obtain the data to be displayed. In particular, when a certain level of control circuit receives the required received data, the level control circuit can automatically transmit the subsequent data to the next stage, and perform pulse width modulation output control according to the received data to control the corresponding at least The brightness of a string of light-emitting diodes. Therefore, compared with the related art, such as the architecture of the Micro Control Unit (MCU), the large-size LED display system implemented by the method and the device of the present invention does not have a problem of high power consumption, nor There will be a problem that the screen update rate is insufficient, and there is no problem that there are too many connection lines.

100‧‧‧Device for LED display control

105-m‧‧‧m-level control circuit

107-m‧‧‧m-th LED module

110-m‧‧‧ data transmission controller

120-m‧‧‧ data processor

130-m‧‧‧Output controller

150-m‧‧‧Switch unit

C(m,0),C(m,1),C(m,2),...,C(m,N-2),C(m,N-1),C(m,N)‧ ‧‧Lighting diode driving signal

DM(m,0),DM(m,1),DM(m,2),...,DM(m,N-2),DM(m,N-1),DM(m,N)‧ ‧‧Lighting diode sub-module

IN‧‧‧ Input data

OUT‧‧‧Output data

POWER‧‧‧Power terminal

Claims (20)

A method for performing display control of a light emitting diode (LED), the method is applied to a light emitting diode display system, and the light emitting diode display system comprises a plurality of light emitting diode modules. The plurality of light emitting diode modules form a light emitting diode display array, and the method comprises the steps of: receiving a set of data in a data sequence to temporarily store the set of data to correspond to a light emitting diode At least one storage unit of the body module for displaying the LED module; when detecting that the receiving of the group of data has been completed, bypassing at least one group of data in the data sequence to For display of other light-emitting diode modules; and driving the plurality of light-emitting diodes in the light-emitting diode module according to the set of data temporarily stored in the at least one storage unit The signal is modulated to display the video content represented by the set of data on the LED module. The method of claim 1, further comprising: counting the received data in the data sequence to determine whether the receipt of the data is completed. The method of claim 2, further comprising: determining that the receipt of the data in the sequence of data reaches a predetermined number, wherein the predetermined amount is equal to the group The amount of information on the data. The method of claim 1, further comprising: providing a plurality of level control circuits respectively corresponding to the light emitting diode modules, wherein the plurality of level control circuits are serially connected to each other to sequentially receive the data A complex array of data in the sequence, wherein the complex array of data includes the set of data and the subsequent set of at least one set of data. The method of claim 4, wherein the set of data in the data sequence is received to temporarily store the set of data to the at least one storage unit corresponding to the light emitting diode module for the illumination The step of displaying the diode module further includes: sequentially receiving the complex array data in the data sequence by using the complex level control circuit to temporarily store the complex array data to respectively correspond to the light emitting two The plurality of storage units of the polar body module are used for display of the light emitting diode modules, wherein the plurality of storage units are respectively disposed in the plurality of stages of the control circuit. The method of claim 5, wherein the step of bypassing the subsequent at least one set of data in the data sequence for display of the other light emitting diode module further comprises: when the complex level control circuit When the one-level control circuit detects that the receiving of the group of data has been completed, bypassing the subsequent at least one set of data in the data sequence for display of other LED modules, wherein the data sequence is The subsequent at least one set of data is output to the lower level control circuit of the stage control circuit. The method of claim 6, further comprising: monitoring whether there is a predetermined update code (Update Code) in the data sequence, wherein the predetermined update code is used to trigger the LED display system update screen And displaying the video content represented by the complex array data; and temporarily detecting a plurality of bypass paths when the predetermined update code is detected, to allow the complex level control circuit to sequentially receive the data sequence The other complex array data corresponding to the next picture, wherein the plurality of bypass paths are respectively disposed in the complex level control circuit for selectively bypassing the data in the data sequence. The method of claim 1, wherein the method further comprises: Monitoring whether a predetermined update code exists in the data sequence; and temporarily disabling a bypass path when the predetermined update code is detected, wherein the bypass path is used to bypass the data The subsequent at least one set of data in the sequence. The method of claim 1, wherein the driving signals of the plurality of LEDs in the LED module are modulated to display the LED module The step of the video content represented by the group data further includes: driving signals of the plurality of light emitting diodes in the light emitting diode module according to the group of data temporarily stored in the at least one storage unit Pulse Width Modulation (PWM) is performed to display the video content represented by the set of data on the LED module. The method of claim 1, further comprising: monitoring whether a predetermined update code exists in the data sequence; and triggering the LED display when the predetermined update code is detected; The system updates the screen to display the video content represented by the complex array data, wherein the complex array data includes the group of materials and the subsequent at least one group of materials. A device for performing display control of a light emitting diode (LED), the device comprising at least a portion of a light emitting diode display system, the light emitting diode display system comprising a plurality of light emitting diode modules The plurality of LED modules form a light emitting diode display array, and the device includes: at least one level control circuit coupled to the at least one LED module of the LED modules And performing display control of the at least one LED module, wherein each of the at least one level control circuit comprises: a data transmission controller, configured to receive a group of data in a data sequence, Will The group of data is temporarily stored in the at least one storage unit corresponding to the at least one LED module for display of the LED module, wherein the at least one storage unit is disposed at the at least one level of control a switching unit, disposed in one of the bypass paths of each of the control circuits, for selectively enabling or disabling the bypass path; a data processor coupled to the a data transmission controller and the switching unit, configured to process the group of data and control the switching unit, wherein when the data sequence has a subsequent at least one set of data corresponding to the same picture, when the group of data is detected When the receiving is completed, the data processor controls the switching unit to bypass the subsequent at least one set of data in the data sequence for display of other LED modules; and an output controller coupled to The data processor is configured to enter, according to the group of data temporarily stored in the at least one storage unit, the driving signals of the plurality of LEDs in the LED module Modulation, to display the video data on the set of light emitting diode modules represent the contents. The device of claim 11, wherein the data processor comprises: an update and counting control module coupled to the data transmission controller and the switching unit for receiving the data sequence The data is counted to determine if the receipt of the data has been completed. The device of claim 12, wherein when it is detected that the received data in the data sequence reaches a predetermined amount, the update and counting control module determines that the receiving of the data is completed, wherein the predetermined The quantity is equal to the amount of data in the group. The device of claim 11, wherein the device comprises respectively corresponding to the a complex level control circuit of the LED module, wherein the complex level control circuit includes the at least one level control circuit; the complex stage control circuit is serially connected to each other to sequentially receive the complex array data in the data sequence; and the complex number The group data includes the group of materials and the subsequent at least one group of materials. The device of claim 14, wherein the device sequentially receives the complex array data in the data sequence by using the complex level control circuit to temporarily store the complex array data to respectively correspond to the light emitting a plurality of storage units of the diode module for display of the LED modules; and the plurality of storage units are respectively disposed in the plurality of control circuits. The device of claim 15, wherein when the one-level control circuit of the complex-level control circuit detects that the receiving of the group of data has been completed, the level control circuit bypasses the subsequent at least in the data sequence. A set of data for display of other light emitting diode modules, wherein the subsequent at least one set of data in the data sequence is output to a lower level control circuit of the stage control circuit. The device of claim 16, wherein the data processor comprises: an update and counting control module coupled to the data transmission controller and the switching unit for monitoring whether a data sequence exists An update code, wherein the predetermined update code is used to trigger the LED display system update screen to display the video content represented by the complex array data; wherein when the predetermined update code is detected, The respective update and count control modules of the complex-level control circuit temporarily disable a plurality of bypass paths to allow the complex-level control circuit to sequentially receive other complex numbers corresponding to the next picture in the data sequence. Group data; and the plurality of bypass paths are respectively disposed in the complex level control circuit for selection Selectively bypass the data in the data sequence. The device of claim 11, wherein the data processor comprises: an update and counting control module coupled to the data transmission controller and the switching unit for monitoring whether a data sequence exists An update code (Update Code); wherein when the predetermined update code is detected, the update and count control module temporarily disables a bypass path; and the bypass path is used to bypass the data sequence The subsequent at least one set of data. The device of claim 11, wherein the output controller is based on the set of data temporarily stored in the at least one storage unit, the plurality of light emitting diodes in the light emitting diode module The respective driving signals are subjected to Pulse Width Modulation (PWM) to display the video content represented by the group of data on the LED module. The device of claim 11, wherein the device comprises all of the light emitting diode display system.