WO2022213402A1 - Led 面板及其驱动方法 - Google Patents

Led 面板及其驱动方法 Download PDF

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Publication number
WO2022213402A1
WO2022213402A1 PCT/CN2021/086818 CN2021086818W WO2022213402A1 WO 2022213402 A1 WO2022213402 A1 WO 2022213402A1 CN 2021086818 W CN2021086818 W CN 2021086818W WO 2022213402 A1 WO2022213402 A1 WO 2022213402A1
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WO
WIPO (PCT)
Prior art keywords
led
module
modules
conversion
output terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/086818
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English (en)
French (fr)
Inventor
李浩然
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
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TCL China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by TCL China Star Optoelectronics Technology Co Ltd filed Critical TCL China Star Optoelectronics Technology Co Ltd
Priority to US17/295,450 priority Critical patent/US20240013706A1/en
Publication of WO2022213402A1 publication Critical patent/WO2022213402A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving

Definitions

  • the present application relates to the field of display technology, and in particular, to an LED panel and a driving method thereof.
  • each chip needs a decoupling capacitor of at least 0.1uF to stabilize the VDD voltage provided to the driver chip. The increase of this capacitor increases the cost and reduces the lighting effect of the whole device.
  • the embodiments of the present application provide an LED panel and a driving method thereof, which can save decoupling capacitors, reduce costs, and improve the lighting effect of the whole machine.
  • Embodiments of the present application provide an LED panel, which includes:
  • the clock generation module is used to provide the clock signal
  • control module is connected to the clock generation module, the control module includes a plurality of output end groups, and the output end group includes at least one first output end; the control module is used for according to the clock signal , sending out electrical signals in sequence through different groups of said output terminals within the same frame time;
  • a plurality of LED modules each of the LED modules is correspondingly connected to one of the first output ends, and the plurality of the LED modules are used to emit light in sequence according to the electrical signal.
  • control module includes a logic control unit and a plurality of conversion units, and the conversion unit includes at least one conversion sub-module;
  • the logic control unit is connected to the clock generation module, the logic control unit includes a plurality of second output terminals, at least one of the second output terminals is correspondingly connected to one of the conversion units, and each of the conversion units corresponds to is connected to one of the output terminal groups, and the conversion sub-modules are connected to the first output terminal in a one-to-one correspondence;
  • the logic control unit is configured to send a digital signal to the conversion unit through at least one of the second output terminals within the same frame time according to the clock signal;
  • the conversion unit is used for converting the digital signal into the electrical signal, and sending the digital signal to the LED module through the first output terminal of the output terminal group.
  • the output terminal group includes one of the first output terminals, and the conversion unit includes one of the conversion sub-modules; each of the first output terminals of the logic control unit The two output terminals are correspondingly connected to one of the conversion sub-modules, and each of the conversion sub-modules is correspondingly connected to one of the LED modules through one of the first output terminals.
  • the output terminal group includes a plurality of the first output terminals
  • the conversion unit includes a plurality of the conversion sub-modules
  • each of the logic control unit The second output terminal is correspondingly connected to one of the conversion sub-modules
  • each of the conversion sub-modules is correspondingly connected to one of the LED modules through one of the first output terminals.
  • the output terminal group includes a plurality of the first output terminals
  • the conversion unit includes a plurality of the conversion sub-modules; each of the logic control unit The second output terminal is correspondingly connected to a plurality of the conversion sub-modules, and each of the conversion sub-modules is correspondingly connected to one of the LED modules through one of the first output terminals.
  • the logic control unit sequentially delays a set time to send the digital signal to the next conversion unit.
  • the set time is between 100 nanoseconds and 2500 nanoseconds.
  • the logic control unit sequentially delays the same or different set times to send the digital signal to different conversion units.
  • the LED module includes an LED device group, a switching device and a ground wire
  • the conversion sub-module is connected to the control terminal of the switching device through the first output terminal,
  • the input end of the switching device is connected to the LED device group, and the output end of the switching device is connected to the ground wire.
  • the switching device is a constant current field effect transistor.
  • the LED panel further includes a power module, and the power module is connected to the input end of the LED module.
  • an embodiment of the present application also provides a driving method for an LED panel, the LED panel includes a clock generation module, a control module and a plurality of LED modules, the control module is connected to the clock generation module, and the control module It includes a plurality of output end groups, the output end group includes at least one first output end, and each of the LED modules is correspondingly connected to one of the first output ends; the driving method includes the following steps:
  • Step B1 the clock generation module provides a clock signal
  • Step B2 within the same frame time, the control module sends electrical signals sequentially through the different output terminal groups according to the clock signal;
  • Step B3 A plurality of the LED modules emit light in sequence according to the electrical signal.
  • control module includes a logic control unit and a plurality of conversion units, and the conversion unit includes at least one conversion sub-module;
  • the logic control unit is connected to the clock generation module, the logic control unit includes a plurality of second output terminals, at least one of the second output terminals is correspondingly connected to one of the conversion units, and each of the conversion units corresponds to is connected to one of the output terminal groups, and the conversion sub-modules are connected to the first output terminal in a one-to-one correspondence;
  • the step B2 includes the following steps:
  • Step B21 within the same frame time, the logic control unit sends a digital signal to the conversion unit through at least one of the second output terminals according to the clock signal;
  • Step B22 The converting unit converts the digital signal into the electrical signal, and sends it to the LED module through the first output terminal of the output terminal group.
  • the output terminal group includes one of the first output terminals, and the conversion unit includes one of the conversion sub-modules; each of the first output terminals of the logic control unit The two output terminals are correspondingly connected to one of the conversion sub-modules, and each of the conversion sub-modules is correspondingly connected to one of the LED modules through one of the first output terminals.
  • the step B21 includes: within the same frame time of the LED panel turn-on phase, the logic control unit, according to the clock signal, passes at least one of the The second output terminal sends the digital signal to the next conversion unit with a delay of a set time in sequence.
  • the set time is between 100 nanoseconds and 2500 nanoseconds.
  • the step B21 includes: the logic control unit sequentially delays the same or different settings through at least one of the second output terminals according to the clock signal The digital signals are sent to the different conversion units in time.
  • the LED module includes an LED device group, a switching device and a ground wire
  • the conversion sub-module is connected to the control terminal of the switching device through the first output terminal,
  • the input end of the switching device is connected to the LED device group, and the output end of the switching device is connected to the ground wire.
  • the switching device is a constant current field effect transistor.
  • the LED panel further includes a power module, and the power module is connected to the input end of the LED module.
  • the control module within the same frame time, sends electrical signals to different LED modules in turn through different output terminal groups; since the control module sends electrical signals for a set time in sequence, all LED modules are prevented from being turned on at the same time in an instant. , reduce the instantaneous current draw of the LED panel to maintain the normal operation of the control module.
  • FIG. 1 is a schematic structural diagram of an LED panel provided by an embodiment of the present application.
  • FIG. 2 is another schematic structural diagram of an LED panel provided by an embodiment of the present application.
  • FIG. 3 is another schematic structural diagram of the LED panel provided by the embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a driving method of an LED panel provided by an embodiment of the present application.
  • Embodiments of the present application provide an LED panel and a driving method thereof, which will be described in detail below. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.
  • an embodiment of the present application provides an LED panel 100 , which includes a clock generation module 11 , a control module 12 , a plurality of LED modules 13 and a power module 14 .
  • the clock generation module 11 is used for providing a clock signal.
  • the control module 12 is connected to the clock generation module 11 .
  • the control module 12 includes a plurality of output terminal groups 12 a, and the output terminal group 12 a includes at least one first output terminal 121 .
  • the control module 12 is used for sequentially sending electrical signals through the different output terminal groups 12a within the same frame time according to the clock signal.
  • Each LED module 13 is correspondingly connected to one first output terminal 121 .
  • the plurality of LED modules 13 are used to emit light in sequence according to the electrical signal.
  • the power module 14 is connected to the LED module 13 .
  • the power module 14 supplies a constant current to the LED module 13 .
  • the control module 12 sends electrical signals to different LED modules 13 in sequence through different output terminal groups 12a. Since the control module 12 sends electrical signals for a set time in sequence, all LED modules 13 are prevented from being turned on simultaneously, the instantaneous current draw of the LED panel 100 is reduced, and the instantaneous voltage drop is reduced to maintain the normal operation of the control module 12 .
  • the LED panel may be an LED display panel or a backlight panel.
  • the clock generation module 11 and the control module 12 are integrated as part of a chip, the chip is connected to a constant voltage, and when the control module 12 extends the set time in turn to send electrical signals to different LED modules 13, the LED modules 13 are turned on in sequence, The instantaneous current draw of the LED module 13 is reduced, thereby reducing the instantaneous drop of the constant voltage, so as to maintain the normal operation of the chip.
  • the clock generation module 11 may be an oscillator (Oscillator).
  • control module 12 includes a logic control unit 12b and a plurality of conversion units 12c.
  • the logic control unit 12b is connected to the clock generation module 11 .
  • the logic control unit 12b includes a plurality of second output terminals 122, and at least one second output terminal 122 is correspondingly connected to one conversion unit 12c. Each of the conversion units 12c is correspondingly connected to one output terminal group 12a.
  • the conversion unit 12c includes at least one conversion sub-module 123 .
  • Each conversion sub-module 123 is connected to one first output terminal 121 in a one-to-one correspondence.
  • the logic control unit 12b is configured to send a digital signal to the conversion unit 12c through at least one of the second output terminals 122 within the same frame time according to the clock signal.
  • the conversion unit 12c is used for converting the digital signal into the electrical signal, and sending the digital signal to the LED module 13 through the first output terminal 121 of the output terminal group 12a.
  • the conversion sub-module 123 of the conversion unit 12c is configured to convert the digital signal into the electrical signal, and send it to the LED module 13 through the first output terminal 121 of the output terminal group 12a.
  • the output terminal group 12 a includes a first output terminal 121
  • the conversion unit 12 c includes a conversion sub-module 123 . Therefore, each second output terminal 122 of the logic control unit 12b is correspondingly connected to a conversion sub-module 123, and each conversion sub-module 123 is connected to a corresponding LED module 13 through a first output terminal 121, so that the logic control unit 12b is sequentially connected one by one.
  • the LED module 13 is turned on.
  • the output terminal group 12 a may include a plurality of first output terminals 121 , for example, two first output terminals 121 .
  • the conversion unit 12c may include a plurality of conversion sub-modules 123, such as two for example. Therefore, each second output terminal 122 of the logic control unit 12 b is correspondingly connected to one conversion sub-module 123 , and each conversion sub-module 123 is correspondingly connected to one LED module 13 through one first output terminal 121 .
  • the logic control unit 12b sends signals twice successively, and sends two signals at the same time each time to turn on the two LED modules 13 at the same time.
  • the output end group 12 a may include a plurality of first output ends 121 , for example, two first output ends 121 .
  • the conversion unit 12c may include a plurality of conversion sub-modules 123, such as two for example. Therefore, each second output terminal 122 of the logic control unit 12b is connected to two conversion sub-modules 123 correspondingly, and each conversion sub-module 123 is correspondingly connected to one LED module 13 through one first output terminal 121 .
  • the logic control unit 12b sends signals twice successively, and each time sends out a signal to turn on the two LED modules 13 at the same time.
  • the logic control unit 12b sequentially delays a set time to send the digital signal to the next conversion unit 12c.
  • the set time is between 100 nanoseconds and 2500 nanoseconds, such as 100 nanoseconds, 500 nanoseconds, 1000 nanoseconds, 2000 nanoseconds or 2500 nanoseconds.
  • Such setting ensures that the instantaneous current draw of the LED panel 100 is small, thereby maintaining the normal operation of the control module 12 .
  • the logic control unit 12b sequentially delays the same or different set times to send the digital signal to different conversion units 12c.
  • the logic control unit 12b sequentially delays the same set time to send the digital signal to different conversion units 12c.
  • the logic control unit 12b sequentially delays sending the digital signals to different conversion units 12c by 100 nanoseconds.
  • a conversion unit 12c transmits digital signals.
  • the logic control unit 12b sends the digital signal to different conversion units 12c by delaying different set times in sequence. For example, the logic control unit 12b sequentially delays 100 nanoseconds, 200 nanoseconds and 300 nanoseconds to send the digital signal to different conversion units 12c, that is, the logic control unit 12b sends the digital signal to one conversion unit 12c for the first time after the first time. , the second time every 100 nanoseconds to send a digital signal to the next conversion unit 12c; the third time to send a digital signal to the subsequent next conversion unit 12c every 200 nanoseconds; the fourth time to the subsequent next conversion unit 12c every 300 nanoseconds Unit 12c transmits digital signals.
  • the LED module 13 includes an LED device group 131 , a switching device 132 and a ground wire 133 .
  • the conversion sub-module 123 is connected to the control end of the switch device 132 through the first output end 121 , the input end of the switch device 132 is connected to the LED device group 131 , and the output end of the switch device 132 is connected to the ground wire 133 .
  • the LED device group 131 includes a plurality of LED devices D1.
  • the ground wires 133 of the plurality of LED modules 13 are connected to each other. In some embodiments, the ground wires 133 between any two LED modules 13 may also be independent of each other.
  • the switching device 132 is a constant current field effect transistor.
  • the conversion unit 12 c includes one conversion sub-module 123 , and there are also four LED modules 13 .
  • the four second output terminals 122 of the logic control unit 12 b are respectively connected to one conversion sub-module 123 , and the four conversion sub-modules 123 are respectively connected to one LED module 13 through the first output terminal 121 .
  • the first conversion sub-module 123 After the multiple LED modules 13 are connected to the current, the first conversion sub-module 123 sends a signal and turns on the first LED module 13 , and the current enters the ground wire 133 after passing through the LED device group 131 and the switching device 132 . Assuming that the resistance of the ground wire 133 is 10 ohms, and the current passing through the switching device 132 is constant at 10 mA, the voltage generated by the ground wire 133 is 0.1 volts.
  • the four conversion sub-modules 123 send signals to the corresponding LED modules 13 in sequence, the four LED modules 13 are turned on in sequence. Therefore, in the same frame, the voltage instantaneously generated by the ground wire 133 is 0.1 volts.
  • the four LED modules 13 are turned on at the same time, so in the same frame, the four ground wires 133 will instantaneously generate a voltage of 0.4 volts, and the instantaneous voltage drop is relatively high.
  • control module 12 is used to control the LED modules 13 to be turned on in sequence, which has the effect of reducing the instantaneous voltage drop, and avoids a large instantaneous drop in the voltage supplied to the clock generation module 11 and the control module 12, and cannot maintain the clock generation module. 11 and the normal operation of the control module 12.
  • an embodiment of the present application further provides a driving method of an LED panel.
  • the driving method is used to drive the LED panel 100 of the above embodiment.
  • the LED panel 100 includes a clock generation module 11 , a control module 12 and a plurality of LED modules 13 .
  • the control module 12 is connected to the clock generation module 11 .
  • the control module 12 includes a plurality of output terminal groups 12a.
  • the output terminal group 12a includes at least one first output terminal 121, and each LED module 13 is connected to one first output terminal 121 in a one-to-one correspondence.
  • the control module 12 includes a logic control unit 12b and a plurality of conversion units 12c, and the conversion units 12c include at least one conversion sub-module 123 .
  • the logic control unit 12b is connected to the clock generation module 11 .
  • the logic control unit 12b includes a plurality of second output terminals 122, at least one second output terminal 122 is connected to one conversion unit 12c correspondingly, and each conversion unit 12c is correspondingly connected to one output terminal group 12a.
  • the conversion sub-modules 123 are connected to the first output terminals 121 in a one-to-one correspondence.
  • the conversion sub-module 123 is connected to the control end of the switch device 132 through the first output end 121 , the input end of the switch device 132 is connected to the LED device group 131 , and the output end of the switch device 132 is connected to the ground wire 133 .
  • the driving method includes the following steps:
  • Step B1 the clock generation module 11 provides a clock signal
  • Step B2 within the same frame time, the control module 12 sequentially sends out electrical signals through the different output terminal groups 12a according to the clock signal;
  • Step B3 The plurality of LED modules 13 emit light in sequence according to the electrical signal.
  • the control module 12 is used to control the LED modules 13 to turn on in sequence, which has the effect of reducing the instantaneous voltage drop, and avoids a large instantaneous drop in the voltage supplied to the clock generation module 11 and the control module 12.
  • the normal operation of the clock generation module 11 and the control module 12 cannot be maintained.
  • Step B1 The clock generation module 11 provides a clock signal.
  • the clock generation module 11 is an oscillator (Oscillator). Then, go to step B2.
  • Step B2 Within the same frame time, the control module 12 sequentially sends out electrical signals through the different output terminal groups 12a according to the clock signal.
  • step B2 the following steps are included:
  • Step B21 within the same frame frame, the logic control unit 12b sends a digital signal to the conversion unit 12c through at least one of the second output terminals 122 according to the clock signal;
  • Step B22 The converting unit 12c converts the digital signal into the electrical signal, and sends the digital signal to the LED module 13 through the first output terminal 121 of the output terminal group 12a.
  • step B21 includes: within the same frame time of the turn-on phase of the LED panel 100, the logic control unit 12b sequentially delays the set time according to the clock signal and sends the digital conversion unit 12c to the next conversion unit 12c. Signal.
  • the set time is between 100 nanoseconds and 2500 nanoseconds, such as 100 nanoseconds, 500 nanoseconds, 1000 nanoseconds, 2000 nanoseconds or 2500 nanoseconds.
  • This setting ensures that the instantaneous current draw of the LED panel 100 is small, reduces the instantaneous voltage drop, and thus maintains the normal operation of the control module 12 .
  • step B21 includes: according to the clock signal, the logic control unit 12b sequentially delays different or the same set time to send the digital signal to the different conversion units 12c.
  • the logic control unit 12b sequentially delays sending the digital signals to different conversion units 12c by 100 nanoseconds.
  • a conversion unit 12c transmits digital signals.
  • the logic control unit 12b sequentially delays 100 nanoseconds, 200 nanoseconds and 300 nanoseconds to send the digital signal to different conversion units 12c, that is, the logic control unit 12b sends the digital signal to one conversion unit 12c for the first time. After that, the digital signal is sent to the next conversion unit 12c every 100 nanoseconds for the second time; the digital signal is sent to the next conversion unit 12c for the third time every 200 nanoseconds; the fourth time is 300 nanoseconds to the next conversion unit The conversion unit 12c transmits a digital signal.
  • Step B3 The plurality of LED modules 13 emit light in sequence according to the electrical signal.
  • the switching device 132 of the LED module 13 when the switching device 132 of the LED module 13 is an N-type Mos tube, the electrical signal is at a high level, and the N-type Mos tube is turned on; when the switching device 132 of the LED module 13 is a P-type Mos tube, the electrical signal is turned on. For low level, the P-type Mos transistor is turned on.
  • the switching device 132 is turned on after receiving the voltage signal, and then the LED device group 131 emits light.
  • the conversion unit 12c includes one conversion sub-module 123, and the number of LED modules 13 is also four.
  • the four second output terminals 122 of the logic control unit 12b are respectively connected to a conversion sub-module 123 in a one-to-one correspondence, and the four conversion sub-modules 123 are respectively connected to an LED module 13 through a one-to-one correspondence with the first output terminals 121 .
  • step B2 and step B3 within the same frame, multiple LED modules 13 are connected to a constant voltage; then, the logic control unit 12b sends a digital signal to the first conversion sub-module 123 according to the timing of the clock signal, and the second A conversion sub-module 123 converts the digital signal into an electrical signal and turns on the first LED module 13 ; then, the current enters the ground wire 133 after passing through the LED device group 131 and the switching device 132 of the first LED module 13 . Assuming that the resistance of the ground wire 133 is 10 ohms, and the current passing through the switching device 132 is constant at 10 mA, the voltage generated by the ground wire 133 is 0.1 volts.
  • the logic control unit 12b delays for a set time, such as 100 nanoseconds, and then sends a digital signal to the second conversion sub-module 123, which converts the digital signal into an electrical signal and turns on the second LED Module 13.
  • the logic control unit 12b sends a digital signal to the third conversion sub-module 123 after another delay of 100 nanoseconds.
  • the third conversion sub-module 123 converts the digital signal into an electrical signal and turns on the third LED module 13 .
  • the logic control unit 12b sends a digital signal to the fourth conversion sub-module 123 after another delay of 100 nanoseconds.
  • the fourth conversion sub-module 123 converts the digital signal into an electrical signal and turns on the fourth LED module 13 .

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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Abstract

公开了一种LED面板(100)及其驱动方法，LED面板(100)包括用于提供时钟信号的时钟生成模块(11)，控制模块(12)包括多个输出端组(12a)，输出端组(12a)包括至少一个第一输出端(121)；控制模块(12)用于根据时钟信号，在同一画面帧时间内通过不同的输出端组(12a)依次发出电信号；每个LED模块(13)对应连接于一个第一输出端(121)，多个LED模块(13)用于根据电信号依次发光。

Description

LED面板及其驱动方法 技术领域
本申请涉及显示技术领域，具体涉及一种LED面板及其驱动方法。
 背景技术
在对现有技术的研究和实践过程中，本申请的发明人发现，在次毫米级发光二极管（Mini Light Emitting Diode，Mini LED）面板和微型发光二极管（Micro LED）面板中，需要驱动芯片去驱动LED发光。但是在现有技术中，每颗芯片会需要一颗至少0.1uF的去耦电容对稳定提供给驱动芯片的VDD电压，此电容的增加提高了成本，而且降低了整机的发光效果。
 技术问题
本申请实施例提供一种LED面板及其驱动方法，可以节省去耦电容，降低成本，以及提高整机的发光效果。
 技术解决方案
本申请实施例提供一种LED面板，其包括：
时钟生成模块，用于提供时钟信号；
控制模块，所述控制模块连接于所述时钟生成模块，所述控制模块包括多个输出端组，所述输出端组包括至少一个第一输出端；所述控制模块用于根据所述时钟信号，在同一画面帧时间内通过不同的所述输出端组依次发出电信号；以及
多个LED模块，每个所述LED模块对应连接于一个所述第一输出端，多个所述LED模块用于根据所述电信号依次发光。
可选的，在本申请的一些实施例中，所述控制模块包括逻辑控制单元和多个转换单元，所述转换单元包括至少一个转换子模块；
所述逻辑控制单元连接于所述时钟生成模块，所述逻辑控制单元包括多个第二输出端，至少一个所述第二输出端对应连接于一个所述转换单元，每个所述转换单元对应连接于一个所述输出端组，所述转换子模块一一对应地连接于所述第一输出端；
所述逻辑控制单元用于根据所述时钟信号，在同一画面帧时间内，通过至少一个所述第二输出端发出数字信号至所述转换单元；
所述转换单元用于将所述数字信号转换为所述电信号，并通过所述输出端组的第一输出端发送至所述LED模块。
可选的，在本申请的一些实施例中，所述输出端组包括一个所述第一输出端，所述转换单元包括一个所述转换子模块；所述逻辑控制单元的每一所述第二输出端对应连接一个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
可选的，在本申请的一些实施例中，所述输出端组包括多个所述第一输出端，所述转换单元包括多个所述转换子模块，所述逻辑控制单元的每一所述第二输出端对应连接一个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
可选的，在本申请的一些实施例中，所述输出端组包括多个所述第一输出端，所述转换单元包括多个所述转换子模块；所述逻辑控制单元的每一所述第二输出端对应连接多个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
可选的，在本申请的一些实施例中，在所述LED面板的开启阶段，所述逻辑控制单元依次延迟设定时间向下一个所述转换单元发送所述数字信号。
可选的，在本申请的一些实施例中，所述设定时间介于100纳秒至2500纳秒之间。
可选的，在本申请的一些实施例中，所述逻辑控制单元依次延迟相同或不同的所述设定时间向不同的所述转换单元发送所述数字信号。
可选的，在本申请的一些实施例中，所述LED模块包括LED器件组、开关器件和地线，所述转换子模块通过所述第一输出端连接于所述开关器件的控制端，所述开关器件的输入端连接于所述LED器件组，所述开关器件的输出端连接于所述地线。
可选的，在本申请的一些实施例中，所述开关器件为恒流场效晶体管。
可选的，在本申请的一些实施例中，所述LED面板还包括电源模块，所述电源模块连接于所述LED模块的输入端。
相应的，本申请实施例还提供一种LED面板的驱动方法，所述LED面板包括时钟生成模块、控制模块和多个LED模块，所述控制模块连接于所述时钟生成模块，所述控制模块包括多个输出端组，所述输出端组包括至少一个第一输出端，每个所述LED模块对应连接于一个所述第一输出端；所述驱动方法包括以下步骤：
步骤B1：所述时钟生成模块提供时钟信号；
步骤B2：在同一画面帧时间内，所述控制模块根据所述时钟信号，通过不同的所述输出端组依次发出电信号；
步骤B3：多个所述LED模块根据所述电信号依次发光。
可选的，在本申请的一些实施例中，所述控制模块包括逻辑控制单元和多个转换单元，所述转换单元包括至少一个转换子模块；
所述逻辑控制单元连接于所述时钟生成模块，所述逻辑控制单元包括多个第二输出端，至少一个所述第二输出端对应连接于一个所述转换单元，每个所述转换单元对应连接于一个所述输出端组，所述转换子模块一一对应地连接于所述第一输出端；
所述步骤B2包括以下步骤：
步骤B21：在同一画面帧时间内，所述逻辑控制单元根据所述时钟信号，通过至少一个所述第二输出端发出数字信号至所述转换单元；
步骤B22：所述转换单元将所述数字信号转换为所述电信号，并通过所述输出端组的第一输出端发送至所述LED模块。
可选的，在本申请的一些实施例中，所述输出端组包括一个所述第一输出端，所述转换单元包括一个所述转换子模块；所述逻辑控制单元的每一所述第二输出端对应连接一个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
可选的，在本申请的一些实施例中，在所述步骤B21包括：在所述LED面板开启阶段的同一画面帧时间内，所述逻辑控制单元根据所述时钟信号，通过至少一个所述第二输出端依次延迟设定时间向下一个所述转换单元发送所述数字信号。
可选的，在本申请的一些实施例中，所述设定时间介于100纳秒至2500纳秒之间。
可选的，在本申请的一些实施例中，所述步骤B21包括：所述逻辑控制单元根据所述时钟信号，并通过至少一个所述第二输出端依次延迟相同或不同的所述设定时间向不同的所述转换单元发送所述数字信号。
可选的，在本申请的一些实施例中，所述LED模块包括LED器件组、开关器件和地线，所述转换子模块通过所述第一输出端连接于所述开关器件的控制端，所述开关器件的输入端连接于所述LED器件组，所述开关器件的输出端连接于所述地线。
可选的，在本申请的一些实施例中，所述开关器件为恒流场效晶体管。
可选的，在本申请的一些实施例中，所述LED面板还包括电源模块，所述电源模块连接于所述LED模块的输入端。
 有益效果
本申请实施例在同一画面帧时间内，控制模块通过不同的输出端组依次发出电信号给不同的LED模块；由于控制模块依次延伸设定时间发出电信号，避免所有的LED模块瞬间同时导通，降低LED面板的瞬间电流抽载以维持控制模块的正常运行。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的LED面板的结构示意图；
图2是本申请实施例提供的LED面板的另一结构示意图；
图3是本申请实施例提供的LED面板的再一结构示意图；
图4是本申请实施例提供的LED面板的驱动方法的流程示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本申请，并不用于限制本申请。在本申请中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
本申请实施例提供一种LED面板及其驱动方法，下文进行详细说明。需说明的是，以下实施例的描述顺序不作为对实施例优选顺序的限定。
请参照图1，本申请实施例提供一种LED面板100，其包括时钟生成模块11、控制模块12、多个LED模块13和电源模块14。
时钟生成模块11用于提供时钟信号。
控制模块12连接于时钟生成模块11。控制模块12包括多个输出端组12a，输出端组12a包括至少一个第一输出端121。控制模块12用于根据所述时钟信号，在同一画面帧时间内通过不同的所述输出端组12a依次发出电信号。
每个LED模块13对应连接于一个第一输出端121。多个LED模块13用于根据所述电信号依次发光。
电源模块14连接于LED模块13。电源模块14为LED模块13提供恒定电流。
本申请实施例在同一画面帧时间内，控制模块12通过不同的输出端组12a依次发出电信号给不同的LED模块13。由于控制模块12依次延伸设定时间发出电信号，避免所有的LED模块13瞬间同时导通，降低LED面板100的瞬间电流抽载，降低瞬间压降以维持控制模块12的正常运行。
可选的，LED面板可以是LED显示面板，也可以是作为背光面板。
可选的，时钟生成模块11和控制模块12集成为芯片的部分，芯片接入恒定电压，当控制模块12依次延伸设定时间发出电信号至不同的LED模块13，LED模块13依次导通，降低了LED模块13的瞬间电流抽载，进而降低了所述恒定电压的瞬间下降量，以维持芯片的正常运作。
可选的，时钟生成模块11可以是振荡器（Oscillator）。
可选的，控制模块12包括逻辑控制单元12b和多个转换单元12c。逻辑控制单元12b连接于时钟生成模块11。
逻辑控制单元12b包括多个第二输出端122，至少一个第二输出端122对应连接于一个转换单元12c。每个所述转换单元12c对应连接于一个输出端组12a。
转换单元12c包括至少一个转换子模块123。每个转换子模块123一一对应地连接于一个第一输出端121。
逻辑控制单元12b用于根据所述时钟信号，在同一画面帧时间内，通过至少一个所述第二输出端122发出数字信号至转换单元12c。
转换单元12c用于将所述数字信号转换为所述电信号，并通过所述输出端组12a的第一输出端121发送至所述LED模块13。
具体的，转换单元12c的转换子模块123用于将所述数字信号转换为所述电信号，并通过所述输出端组12a的第一输出端121发送至所述LED模块13。
在本实施例中，输出端组12a包括一个第一输出端121，转换单元12c包括一个转换子模块123。故，逻辑控制单元12b的每一第二输出端122对应连接一个转换子模块123，每一转换子模块123通过一个第一输出端121对应连接一个LED模块13，以使逻辑控制单元12b依次逐个导通LED模块13。
在一些实施例中，请参照图2，输出端组12a可以包括多个第一输出端121，比如以2个为例。转换单元12c可以包括多个转换子模块123，比如以2个为例。故，逻辑控制单元12b的每一第二输出端122对应连接1个转换子模块123，每一转换子模块123通过一个第一输出端121对应连接一个LED模块13。逻辑控制单元12b先后两次发信号，每次同时发出两个信号以同时导通2个LED模块13。
在一些实施例中，请参照图3，输出端组12a可以包括多个第一输出端121，比如以2个为例。转换单元12c可以包括多个转换子模块123，比如以2个为例。故，逻辑控制单元12b的每一第二输出端122对应连接2个转换子模块123，每一转换子模块123通过一个第一输出端121对应连接一个LED模块13。逻辑控制单元12b先后两次发信号，每次发出1个信号以同时导通2个LED模块13。
可选的，本实施例在LED面板100的开启阶段，逻辑控制单元12b依次延迟设定时间向下一个所述转换单元12c发送所述数字信号。
可选的，所述设定时间介于100纳秒至2500纳秒之间，比如100纳秒、500纳秒、1000纳秒、2000纳秒或2500纳秒。这样的设置以保证LED面板100的瞬间电流抽载较小，进而维持控制模块12的正常运行。
可选的，逻辑控制单元12b依次延迟相同或不同的所述设定时间向不同的所述转换单元12c发送所述数字信号。
本实施例中，逻辑控制单元12b依次延迟相同的所述设定时间向不同的转换单元12c发送所述数字信号。比如逻辑控制单元12b依次延迟100纳秒向不同的转换单元12c发送所述数字信号，也即，逻辑控制单元12b在第一次发出数字信号给一个转换单元12c后，每隔100纳秒向下一个转换单元12c发送数字信号。
在一些实施例中，本实施例中，逻辑控制单元12b依次延迟不同的所述设定时间向不同的转换单元12c发送所述数字信号。比如逻辑控制单元12b依次延迟100纳秒、200纳秒和300纳秒向不同的转换单元12c发送所述数字信号，也即，逻辑控制单元12b在第一次发出数字信号给一个转换单元12c后，第二次隔100纳秒向下一个转换单元12c发送数字信号；第三次隔200纳秒向后续的下一个转换单元12c发送数字信号；第四次隔300纳秒向后续的下一个转换单元12c发送数字信号。
LED模块13包括LED器件组131、开关器件132和地线133。转换子模块123通过第一输出端121连接于开关器件132的控制端，开关器件132的输入端连接于LED器件组131，开关器件132的输出端连接于地线133。
在本实施例中，LED器件组131包括多个LED器件D1。多个LED模块13的地线133相连。在一些实施例中，任意两个LED模块13之间的地线133也可相互独立。
可选的，开关器件132为恒流场效晶体管。
在本实施例中，请参照图1，假设转换单元12c为4个，转换单元12c包括一个转换子模块123，LED模块13也为4个。逻辑控制单元12b的4个第二输出端122分别对应连接1个转换子模块123，4个转换子模块123通过第一输出端121分别对应连接1个LED模块13。
当多个LED模块13接入电流后，第一个转换子模块123发出信号并导通第一个LED模块13，电流经过LED器件组131和开关器件132后，进入地线133。假设地线133的电阻为10欧姆，经过开关器件132后的电流恒定为10毫安，那么地线133产生的电压为0.1伏。
由于4个转换子模块123是依次发送信号给对应的LED模块13，因此4个LED模块13是依次导通，故在同一画面帧内，地线133瞬间产生的电压为0.1伏。
而现有技术的4个LED模块13是同时导通的，那么在同一画面帧内，4个地线133会瞬间产生0.4伏的电压，瞬间压降较高。
故本实施例采用控制模块12依次控制LED模块13导通，起到降低瞬间压降的效果，避免供给时钟生成模块11和控制模块12的电压瞬间较大幅度的下降，而不能维持时钟生成模块11和控制模块12的正常运作。
请参照图1和图4，本申请实施例还提供一种LED面板的驱动方法。所述驱动方法用于驱动上述实施例的LED面板100。LED面板100包括时钟生成模块11、控制模块12和多个LED模块13。控制模块12连接于时钟生成模块11。控制模块12包括多个输出端组12a。输出端组12a包括至少一个第一输出端121，每个LED模块13一一对应地连接于一个第一输出端121。
控制模块12包括逻辑控制单元12b和多个转换单元12c，所述转换单元12c包括至少一个转换子模块123。
逻辑控制单元12b连接于时钟生成模块11。逻辑控制单元12b包括多个第二输出端122，至少一个第二输出端122对应连接一个转换单元12c，每个转换单元12c对应连接一个输出端组12a。转换子模块123一一对应地连接于第一输出端121。
转换子模块123通过所述第一输出端121连接于开关器件132的控制端，开关器件132的输入端连接于LED器件组131，开关器件132的输出端连接于地线133。
驱动方法包括以下步骤：
步骤B1：所述时钟生成模块11提供时钟信号；
步骤B2：在同一画面帧时间内，所述控制模块12根据所述时钟信号，通过不同的所述输出端组12a依次发出电信号；
步骤B3：多个所述LED模块13根据所述电信号依次发光。
本实施例的LED面板的驱动方法，采用控制模块12依次控制LED模块13导通，起到降低瞬间压降的效果，避免供给时钟生成模块11和控制模块12的电压瞬间较大幅度的下降，而不能维持时钟生成模块11和控制模块12的正常运作。下面对本实施例的LED面板的驱动方法的阐述。
步骤B1：所述时钟生成模块11提供时钟信号。可选的，时钟生成模块11为振荡器（Oscillator）。随后，转入步骤B2。
步骤B2：在同一画面帧时间内，所述控制模块12根据所述时钟信号，通过不同的所述输出端组12a依次发出电信号。
在步骤B2包括以下步骤：
步骤B21：同一画面帧时间内，所述逻辑控制单元12b根据所述时钟信号，通过至少一个所述第二输出端122发出数字信号至所述转换单元12c；
步骤B22：所述转换单元12c将所述数字信号转换为所述电信号，并通过所述输出端组12a的第一输出端121发送至所述LED模块13。
可选的，步骤B21包括：在LED面板100开启阶段的同一画面帧时间内，所述逻辑控制单元12b根据所述时钟信号，依次延迟设定时间向下一个所述转换单元12c发送所述数字信号。
可选的，所述设定时间介于100纳秒至2500纳秒之间，比如100纳秒、500纳秒、1000纳秒、2000纳秒或2500纳秒。这样的设置以保证LED面板100的瞬间电流抽载较小，降低瞬间压降，进而维持控制模块12的正常运行。
可选的，步骤B21包括：逻辑控制单元12b根据所述时钟信号，依次延迟不同或相同的所述设定时间向不同的所述转换单元12c发送所述数字信号。
比如逻辑控制单元12b依次延迟100纳秒向不同的转换单元12c发送所述数字信号，也即，逻辑控制单元12b在第一次发出数字信号给一个转换单元12c后，每隔100纳秒向下一个转换单元12c发送数字信号。
又比如逻辑控制单元12b依次延迟100纳秒、200纳秒和300纳秒向不同的转换单元12c发送所述数字信号，也即，逻辑控制单元12b在第一次发出数字信号给一个转换单元12c后，第二次隔100纳秒向下一个转换单元12c发送数字信号；第三次隔200纳秒向后续的下一个转换单元12c发送数字信号；第四次隔300纳秒向后续的下一个转换单元12c发送数字信号。
随后转入步骤B3。
步骤B3：多个所述LED模块13根据所述电信号依次发光。
可选的，当LED模块13的开关器件132是N型Mos管时，电信号为高电平，N型Mos管导通；当LED模块13的开关器件132是P型Mos管时，电信号为低电平，P型Mos管导通。
也就是说，开关器件132接收到电压信号后导通，进而LED器件组131发光。
综上所述，假设转换单元12c为4个，转换单元12c包括一个转换子模块123，LED模块13也为4个。逻辑控制单元12b的4个第二输出端122分别一一对应连接一个转换子模块123，4个转换子模块123通过第一输出端121分别一一对应连接一个LED模块13。
那么在步骤B2和步骤B3中，在同一画面帧内，多个LED模块13接入恒定电压；随后，逻辑控制单元12b根据时钟信号的时序，发送数字信号至第一个转换子模块123，第一个转换子模块123将数字信号转换为电信号并导通第一个LED模块13；接着，电流经过第一个LED模块13的LED器件组131和开关器件132后，进入地线133。假设地线133的电阻为10欧姆，经过开关器件132后的电流恒定为10毫安，那么地线133产生的电压为0.1伏。
然后，逻辑控制单元12b延迟设定时间，比如100纳秒，后向第二个转换子模块123发送数字信号，第二个转换子模块123将数字信号转换为电信号并导通第二个LED模块13。
接着，逻辑控制单元12b再次延迟100纳秒后向第三个转换子模块123发送数字信号，第三个转换子模块123将数字信号转换为电信号并导通第三个LED模块13。
最后，逻辑控制单元12b又延迟100纳秒后向第四个转换子模块123发送数字信号，第四个转换子模块123将数字信号转换为电信号并导通第四个LED模块13。
这样便完成了本实施例的驱动过程。
以上对本申请实施例所提供的LED面板及其驱动方法进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种LED面板，其包括：
    时钟生成模块，用于提供时钟信号；
    控制模块，所述控制模块连接于所述时钟生成模块，所述控制模块包括多个输出端组，所述输出端组包括至少一个第一输出端；所述控制模块用于根据所述时钟信号，在同一画面帧时间内通过不同的所述输出端组依次发出电信号；以及
    多个LED模块，每个所述LED模块对应连接于一个所述第一输出端，多个所述LED模块用于根据所述电信号依次发光。
  2. 根据权利要求1所述的LED面板，其中，所述控制模块包括逻辑控制单元和多个转换单元，所述转换单元包括至少一个转换子模块；
    所述逻辑控制单元连接于所述时钟生成模块，所述逻辑控制单元包括多个第二输出端，至少一个所述第二输出端对应连接于一个所述转换单元，每个所述转换单元对应连接一个所述输出端组，所述转换子模块一一对应地连接于所述第一输出端；
    所述逻辑控制单元用于根据所述时钟信号，在同一画面帧时间内，通过至少一个所述第二输出端发出数字信号至所述转换单元；
    所述转换单元用于将所述数字信号转换为所述电信号，并通过所述第一输出端发送至所述LED模块。
  3. 根据权利要求2所述的LED面板，其中，所述输出端组包括一个所述第一输出端，所述转换单元包括一个所述转换子模块；所述逻辑控制单元的每一所述第二输出端对应连接一个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
  4. 根据权利要求2所述的LED面板，其中，所述输出端组包括多个所述第一输出端，所述转换单元包括多个所述转换子模块，所述逻辑控制单元的每一所述第二输出端对应连接一个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
  5. 根据权利要求2所述的LED面板，其中，所述输出端组包括多个所述第一输出端，所述转换单元包括多个所述转换子模块；所述逻辑控制单元的每一所述第二输出端对应连接多个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
  6. 根据权利要求2所述的LED面板，其中，在所述LED面板的开启阶段，所述逻辑控制单元依次延迟设定时间向下一个所述转换单元发送所述数字信号。
  7. 根据权利要求6所述的LED面板，其中，所述设定时间介于100纳秒至2500纳秒之间。
  8. 根据权利要求6所述的LED面板，其中，所述逻辑控制单元依次延迟相同或不同的所述设定时间向不同的所述转换单元发送所述数字信号。
  9. 根据权利要求2所述的LED面板，其中，所述LED模块包括LED器件组、开关器件和地线，所述转换子模块通过所述第一输出端连接于所述开关器件的控制端，所述开关器件的输入端连接于所述LED器件组，所述开关器件的输出端连接于所述地线。
  10. 根据权利要求9所述的LED面板，其中，所述开关器件为恒流场效晶体管。
  11. 根据权利要求1所述的LED面板，其中，所述LED面板还包括电源模块，所述电源模块连接于所述LED模块的输入端。
  12. 一种LED面板的驱动方法，其中，所述LED面板包括时钟生成模块、控制模块和多个LED模块，所述控制模块连接于所述时钟生成模块，所述控制模块包括多个输出端组，所述输出端组包括至少一个第一输出端，每个所述LED模块对应连接于一个所述第一输出端；所述驱动方法包括以下步骤：
    步骤B1：所述时钟生成模块提供时钟信号；
    步骤B2：在同一画面帧时间内，所述控制模块根据所述时钟信号，通过不同的所述输出端组依次发出电信号；
    步骤B3：多个所述LED模块根据所述电信号依次发光。
  13. 根据权利要求12所述的LED面板的驱动方法，其中，所述控制模块包括逻辑控制单元和多个转换单元，所述转换单元包括至少一个转换子模块；
    所述逻辑控制单元连接于所述时钟生成模块，所述逻辑控制单元包括多个第二输出端，至少一个所述第二输出端对应连接于一个所述转换单元，每个所述转换单元对应连接一个所述输出端组，所述转换子模块一一对应地连接于所述第一输出端；
    所述步骤B2包括以下步骤：
    步骤B21：在同一画面帧时间内，所述逻辑控制单元根据所述时钟信号，通过至少一个所述第二输出端发出数字信号至所述转换单元；
    步骤B22：所述转换单元将所述数字信号转换为所述电信号，并通过所述第一输出端发送至所述LED模块。
  14. 根据权利要求13所述的LED面板的驱动方法，其中，所述输出端组包括一个所述第一输出端，所述转换单元包括一个所述转换子模块；所述逻辑控制单元的每一所述第二输出端对应连接一个所述转换子模块，每一所述转换子模块通过一个所述第一输出端对应连接一个所述LED模块。
  15. 根据权利要求13所述的LED面板的驱动方法，其中，在步骤B21包括：在所述LED面板开启阶段的同一画面帧时间内，所述逻辑控制单元根据所述时钟信号，通过至少一个所述第二输出端依次延迟设定时间向下一个所述转换单元发送所述数字信号。
  16. 根据权利要求15所述的LED面板的驱动方法，其中，所述设定时间介于100纳秒至2500纳秒之间。
  17. 根据权利要求16所述的LED面板的驱动方法，其中，所述步骤B21包括：所述逻辑控制单元根据所述时钟信号，并通过至少一个所述第二输出端依次延迟相同或不同的所述设定时间向不同的所述转换单元发送所述数字信号。
  18. 根据权利要求12所述的LED面板的驱动方法，其中，所述LED模块包括LED器件组、开关器件和地线，所述转换子模块通过所述第一输出端连接于所述开关器件的控制端，所述开关器件的输入端连接于所述LED器件组，所述开关器件的输出端连接于所述地线。
  19. 根据权利要求18所述的LED面板的驱动方法，其中，所述开关器件为恒流场效晶体管。
  20. 根据权利要求12所述的LED面板的驱动方法，其中，所述LED面板还包括电源模块，所述电源模块连接于所述LED模块的输入端。
PCT/CN2021/086818 2021-04-08 2021-04-13 Led 面板及其驱动方法 Ceased WO2022213402A1 (zh)

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