WO2019062293A1 - 显示装置的驱动装置及驱动方法 - Google Patents

显示装置的驱动装置及驱动方法 Download PDF

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Publication number
WO2019062293A1
WO2019062293A1 PCT/CN2018/096415 CN2018096415W WO2019062293A1 WO 2019062293 A1 WO2019062293 A1 WO 2019062293A1 CN 2018096415 W CN2018096415 W CN 2018096415W WO 2019062293 A1 WO2019062293 A1 WO 2019062293A1
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Prior art keywords
control
output
module
input
terminal
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PCT/CN2018/096415
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English (en)
French (fr)
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黄北洲
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惠科股份有限公司
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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] organic, e.g. using organic light-emitting diodes [OLED]

Definitions

  • the embodiments of the present application belong to the field of display technologies, and in particular, to a driving device and a driving method of a display device.
  • the gate drive architecture of a common display product typically includes a system on chip (SOC) and a gate driver on array (GOA).
  • SOC system on chip
  • GOA gate driver on array
  • the gate driving of the array substrate directly drives the gate on the glass substrate of the display device, thereby avoiding the use of a gate driver chip (Gate Driver IC), thereby reducing the cost.
  • the array substrate gate drive circuit outputs a scan signal by a gate voltage of the controller output transistor (ie, a voltage at the Q point).
  • the embodiment of the present invention provides a driving device and a driving method for a display device, which are intended to solve the problem that parasitic capacitance exists between a clock signal input end of a conventional array substrate gate driving circuit and a gate and an output end of an output transistor, resulting in an array.
  • the scan signal outputted by the substrate gate drive circuit may be affected by the clock signal due to the existence of parasitic capacitance, which seriously affects the display effect of the display device.
  • An embodiment of the present application provides a driving device for a display device, where the display device includes a display panel, and the driving device includes:
  • An input module wherein the input end and the output end of the input module are respectively connected to the start control signal and the first control node;
  • An output module wherein the control end, the input end, and the output end of the output module are respectively connected to the first control node, the first clock signal, and the display panel, according to a voltage and a device applied to the first control node
  • the first clock signal outputs a scan signal to the display panel
  • a pull-up module wherein the input end and the output end of the pull-up module are respectively connected to the second clock signal and the second control node, where the second control node is placed when the second clock signal is at the first level First level
  • a pull-down module wherein the control terminal, the input terminal, and the output terminal of the pull-down module are respectively connected to the first control node, the second control node, and the common ground terminal, when the initial control signal is at a first level Having the second control node at a second level;
  • a maintenance module wherein the first input end, the second input end, the control end, and the output end of the maintenance module are respectively connected to the first control node, the output end of the pull-down module, the second control node, and the total Territory
  • first level is higher than the second level.
  • the input module includes a first electronic switch unit, and an input end and a control end of the first electronic switch unit are connected to form an input end of the input module, and an output of the first electronic switch unit The end is the output of the input module.
  • the first electronic switch unit includes a transistor, and an input end and a control end of the transistor respectively constitute an input end and a control end of the first electronic switch unit, and an output end of the transistor is the The output of the first electronic switching unit.
  • the output module comprises:
  • control end, the input end and the output end of the second electronic switch unit respectively constitute a control end, an input end and an output end of the output module
  • a signal coupling isolation unit is coupled between the control end and the output end of the second electronic switch unit.
  • the second electronic switching unit includes a transistor, and the control terminal, the input terminal, and the output terminal of the transistor respectively constitute a control terminal, an input terminal, and an output terminal of the second electronic switch unit.
  • the pull-up module includes a third electronic switch unit, and the control end and the input end of the third electronic switch unit are connected to form an input end of the pull-up module, and the third electronic switch unit The output of the output constitutes the output of the pull-up module.
  • the third electronic switching unit includes a transistor, and the control terminal, the input terminal, and the output terminal of the transistor respectively constitute a control terminal, an input terminal, and an output terminal of the third electronic switch unit.
  • the pull-down module includes a fourth electronic switch unit, and the control end, the input end, and the output end of the fourth electronic switch unit respectively constitute a control end, an input end, and an output end of the pull-down module.
  • the fourth electronic switching unit includes a transistor, and the control terminal, the input terminal, and the output terminal of the transistor respectively constitute a control terminal, an input terminal, and an output terminal of the fourth electronic switch unit.
  • the maintenance module includes:
  • the input end of the fifth electronic switch unit constitutes a first input end of the maintenance module
  • a sixth electronic switch unit wherein the input end of the sixth electronic switch unit constitutes a second input end of the maintenance module, and the control end of the fifth electronic switch unit and the control end of the sixth electronic switch unit are connected Forming a control end of the maintenance module, an output end of the fifth electronic switch unit and an output end of the sixth electronic switch unit are connected to form an output end of the maintenance module.
  • the fifth electronic switching unit includes a transistor, the input of which forms the input of the fifth electronic switching unit.
  • the sixth electronic switching unit includes a transistor, an input end of the transistor constitutes an input end of the sixth electronic switching unit, a control end of the fifth electronic switching unit, and a control of the transistor
  • the terminals are connected to form a control end of the maintenance module, and an output end of the fifth electronic switch unit and an output end of the transistor are connected to form an output end of the maintenance module.
  • Another aspect of the embodiment of the present application further provides a driving device for a display device, where the display device includes a display panel, and the driving device includes:
  • An input module wherein the input end and the output end of the input module are respectively connected to the initial control signal and the first control node;
  • An output module wherein the control end, the input end, and the output end of the output module are respectively connected to the first control node, the first clock signal, and the display panel, according to a voltage and a device applied to the first control node
  • the first clock signal outputs a scan signal to the display panel
  • a pull-up module wherein the input end and the output end of the pull-up module are respectively connected to the second clock signal and the second control node, where the second control node is placed when the second clock signal is at the first level First level
  • a pull-down module wherein the control terminal, the input terminal, and the output terminal of the pull-down module are respectively connected to the first control node, the second control node, and the common ground terminal, when the initial control signal is at a first level Having the second control node at a second level;
  • a maintenance module wherein the first input end, the second input end, the control end, and the output end of the maintenance module are respectively connected to the first control node, the output end of the pull-down module, the second control node, and the total Territory
  • first level is higher than the second level
  • the input module comprises
  • a first electronic switch unit the input end of the first electronic switch unit and the control end are connected to the start control signal, and the output end of the first electronic switch unit is connected to the first control node;
  • the output module includes a second electronic switch unit, and the control end, the input end, and the output end of the second electronic switch unit are respectively connected to the first control node, the first clock signal, and the display panel, and are used for Outputting a scan signal to the display panel according to a voltage applied to the first control node and the first clock signal; and a signal coupling isolation unit connected to the control of the second electronic switch unit Between the end and the output;
  • the pull-up module includes a third electronic switch unit, and the control end and the input end of the third electronic switch unit are connected to each other to access a second clock signal, and the output end of the third electronic switch unit is connected to the Second control node;
  • the pull-down module includes a fourth electronic switch unit, and the control end, the input end, and the output end of the fourth electronic switch unit are respectively connected to the first control node, the second control node, and the common ground end.
  • the maintenance module includes a fifth electronic switch unit, an input end of the fifth electronic switch unit is connected to the first control node, and a sixth electronic switch unit, an input terminal of the sixth electronic switch unit The output end of the fourth electronic switch unit, the control end of the fifth electronic switch unit and the control end of the sixth electronic switch unit are connected in common to the second control node, and the fifth electronic switch unit The output end and the output end of the sixth electronic switch unit are connected to the common ground end.
  • the first electronic switch unit includes a transistor, and an input end and a control end of the transistor respectively constitute an input end and a control end of the first electronic switch unit, and an output end of the transistor is the The output of the first electronic switching unit.
  • the second electronic switching unit includes a transistor, and the control terminal, the input terminal, and the output terminal of the transistor respectively constitute a control terminal, an input terminal, and an output terminal of the second electronic switch unit.
  • the third electronic switching unit includes a transistor, and the control terminal, the input terminal, and the output terminal of the transistor respectively constitute a control terminal, an input terminal, and an output terminal of the third electronic switch unit.
  • the fourth electronic switching unit includes a transistor, and the control terminal, the input terminal, and the output terminal of the transistor respectively constitute a control terminal, an input terminal, and an output terminal of the fourth electronic switch unit.
  • the fifth electronic switching unit includes a transistor, the input of which forms the input of the fifth electronic switching unit.
  • the sixth electronic switching unit includes a transistor, an input end of the transistor constitutes an input end of the sixth electronic switching unit, a control end of the fifth electronic switching unit, and a control of the transistor
  • the terminal is connected to the second control node, and the output end of the fifth electronic switch unit and the output end of the transistor are connected to the common ground end.
  • the embodiment of the present application further provides a driving method of a display device, the display device includes a display panel, and the driving method is implemented based on the driving device, and the driving method includes:
  • first level is higher than the second level.
  • a second clock signal and a second control node pull-up module are disposed in a driving device of the display device, and a pull-down module connected to the first control node and the second control node is configured to be used in the second clock signal.
  • the first level is the first control node
  • the second control node is at the first level
  • the initial control signal is at the first level
  • the second control node is at the second level, so that the scan signal can be output normally, and the display device is ensured. normal display.
  • FIG. 1 is a schematic diagram showing the structure and signals of a driving device of an exemplary display device.
  • FIG. 2 is a schematic structural diagram of a driving device of a display device according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a driving device of a display device according to another embodiment of the present application.
  • FIG. 4 is a schematic diagram of control signals and scan signals of a driving device of a display device according to an embodiment of the present application.
  • FIG. 5 is a flow chart of a driving method of a display device according to an embodiment of the present application.
  • FIG. 6 is a structural block diagram of a driving system of a display device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • the process architecture of the display screen is divided into gate drive design and can be divided into SOC (System on chip) and GOA (Gate driver on array), respectively.
  • GOA is an important technology in panel design.
  • the main feature of the original gate drive function is to use the array exposure development method to drive the gate on the glass, and then generate a logic circuit to drive the gate signal line. Eliminate the gate drive IC and reduce costs.
  • the GOA circuit principle is mainly shown in Figure 1 (c).
  • the M3 TFT has the capacitance Cgd and Cgs, as shown in Figure 1(c), so in the design considerations, Cgd/(Cgd+Cgs+C)*(Vgh-Vgl) ⁇ Vt, then the output is Will not beat with CKV.
  • Cgd is very large, it is necessary to have a very large external capacitor C for the output to not jump with CKV.
  • M3 has Cgd capacitive coupling, the Q point potential will be affected by CKV. When the Q point rises, M3 will be slightly opened, and when M3 is turned on, the output will follow the CKV swing, as shown in Figure 1(d).
  • embodiments of the present application provide a driving device for a display device.
  • an embodiment of the present application provides a driving device 100 for a display device, which includes an input module 10 , an output module 20 , a pull-up module 30 , a pull-down module 40 , and a maintenance module 50 .
  • the input terminal and the output terminal of the input module 10 are respectively connected to a start control signal (STV signal) and a first control node Q (ie, Q point).
  • STV signal start control signal
  • Q first control node
  • the input module 10 specifically includes a first electronic switch unit.
  • the input end and the control end of the first electronic switch unit are connected to form an input end of the input module 10, and the output end of the first electronic switch unit is the input module 10.
  • the first electronic switching unit can be any device having an electronic switching function, such as a transistor.
  • the input module 10 includes a first transistor M1.
  • the input terminal and the control terminal of the first transistor M1 are connected to form an input terminal of the input module 10.
  • the output terminal of the first transistor M1 is the output of the input module 10. end.
  • the control terminal, the input terminal and the output terminal of the output module 20 are respectively connected to the first control node Q, the first clock signal (CK signal) and the display panel, and are configured to output a scan according to the voltage applied to the first control node and the first clock signal. Signal to the display panel of the display device.
  • the first level is higher than the second level.
  • the display panel can be any type of display panel, such as a liquid crystal display panel based on TFT-LCD (Thin Film Transistor Liquid Crystal Display) technology, and a liquid crystal display device based on LCD (Liquid Crystal Display).
  • a liquid crystal display panel based on TFT-LCD (Thin Film Transistor Liquid Crystal Display) technology
  • LCD Liquid Crystal Display
  • Technical liquid crystal display panel organic electric laser display panel based on OLED (Organic Electroluminescence Display) technology, quantum dot light emitting diode display panel or surface based on QLED (Quantum Dot Light Emitting Diodes) technology Display panel, etc.
  • OLED Organic Electroluminescence Display
  • QLED Quantum Dot Light Emitting Diodes
  • the output module 20 includes:
  • a second electronic switch unit the control end, the input end and the output end of the second electronic switch unit respectively constitute a control end, an input end and an output end of the output module 20;
  • the signal coupling isolation unit is connected between the control end and the output end of the second electronic switch unit.
  • the second electronic switching unit can be any device having an electronic switching function, such as a transistor.
  • the signal coupling isolation unit can be any device with signal isolation coupling, such as a capacitor.
  • FIG. 3 exemplarily shows that the output module 20 includes a second transistor M2 and a capacitor C.
  • the input terminal, the output terminal and the control terminal of the second transistor M2 are respectively an input terminal, an output terminal and a control terminal of the output module 20, and the capacitor C Connected between the control terminal and the output terminal of the second transistor M2.
  • the input end and the output end of the pull-up module 30 are respectively connected to the second clock signal (CK signal) and the second control node P, so that the second control node is at the first level when the second clock signal is at the first level .
  • the pull-up module 30 includes a third electronic switch unit.
  • the control end and the input end of the third electronic switch unit are connected in common to form an input end of the pull-up module 30, and the output end of the third electronic switch unit constitutes a pull-up.
  • the output of module 30 is the output of module 30.
  • the third electronic switching unit can be any device having an electronic switching function, such as a transistor.
  • FIG. 3 exemplarily shows that the pull-up module 30 includes a third transistor M3.
  • the input terminal and the control terminal of the third transistor M3 are connected to form an input terminal of the pull-up module 30, and the output terminal of the third transistor M3 is a pull-up module.
  • the output of 30 is a pull-up module.
  • the control terminal, the input terminal and the output terminal of the pull-down module 40 are respectively connected to the first control node, the second control node, and the common ground terminal VSS, so that when the initial control signal is at the first level, the second control node is placed in the second Level.
  • the pull-down module 40 includes a fourth electronic switch unit, and the control terminal, the input terminal, and the output terminal of the fourth electronic switch unit respectively constitute a control terminal, an input terminal, and an output terminal of the pull-down module 40.
  • the fourth electronic switching unit can be any device having an electronic switching function, such as a transistor.
  • the pull-down module 40 includes a fourth transistor M4.
  • the input terminal, the output terminal and the control terminal of the fourth transistor M4 are respectively an input terminal, an output terminal and a control terminal of the pull-down module 40.
  • the first input terminal, the second input terminal, the control terminal, and the output terminal of the maintenance module 50 are respectively connected to the output ends of the first control node Q, the pull-down module 40, the second control node P, and the common ground terminal VSS.
  • the maintenance module 50 includes:
  • the input end of the fifth electronic switch unit constitutes a first input end of the maintenance module 50;
  • the sixth electronic switch unit, the input end of the sixth electronic switch unit constitutes the second input end of the maintenance module 50, and the control end of the fifth electronic switch unit and the control end of the sixth electronic switch unit are connected to form the control end of the maintenance module 50.
  • the output end of the fifth electronic switch unit and the output end of the sixth electronic switch unit are connected in common to form an output end of the maintenance module 50.
  • the fifth electronic switching unit or the sixth electronic switching unit may be any device having an electronic switching function, such as a transistor.
  • the maintenance module 50 includes a fifth transistor M5 and a sixth transistor M6.
  • the input terminal of the fifth transistor M5 constitutes a first input terminal of the maintenance module 50; the input of the sixth transistor M6, the sixth transistor M6 The terminal constitutes the second input terminal of the maintenance module 50.
  • the control terminal of the fifth transistor M5 and the control terminal of the sixth transistor M6 are connected in common to form the control terminal of the maintenance module 50, the output terminal of the fifth transistor M5 and the output of the sixth transistor M6.
  • the terminals are connected in common to form the output of the maintenance module 50.
  • the initial control signal, the first clock signal and the second clock signal are specifically output by a control module of the display device, and the control module can be passed through a general-purpose integrated circuit, such as a CPU (Central Processing Unit), or It can be implemented by an ASIC (Application Specific Integrated Circuit) or a Timer Control Register (TCON).
  • a general-purpose integrated circuit such as a CPU (Central Processing Unit), or It can be implemented by an ASIC (Application Specific Integrated Circuit) or a Timer Control Register (TCON).
  • the first level is higher than the second level.
  • all the electronic switch units in the embodiments of the present application may select any type of device having an electronic switch function according to actual needs, for example, a common transistor or a thin film transistor (TFT), and specifically may be N.
  • TFT thin film transistor
  • PMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • the driving device specifically includes an array driver on array (GOA) circuit.
  • GOA array driver on array
  • the driving device includes a first electronic switch unit, a second electronic switch unit, a signal coupling isolation unit, a third electronic switch unit, a fourth electronic switch unit, a fifth electronic switch unit, and a sixth electronic Switching unit
  • FIG. 3 exemplarily shows a schematic structural view when the driving device includes these units at the same time.
  • FIG. 4 a waveform diagram of each control signal output by the control module and a scan signal output to the display panel when the display panel is driven by the driving device shown in FIG. 3 is exemplarily shown.
  • STV denotes a start control signal
  • CK1 denotes a first clock signal
  • CK2 denotes a second clock signal
  • P denotes a P-point voltage signal
  • Q denotes a Q-point voltage signal
  • OUT denotes a scan signal.
  • the display panel is driven based on the above driving device, so that the waveform of the output scan signal does not change with the first clock signal, thereby ensuring normal display of the display panel.
  • the embodiment of the present application sets a second clock signal and a pull-up module of the second control node in the driving device of the display device, and sets a pull-down module connected to the first control node and the second control node for the second clock.
  • the signal is at the first level
  • the second control node is at the first level
  • the initial control signal is at the first level
  • the second control node is at the second level, so that the scan signal can be normally output, and the display device is guaranteed The normal display.
  • an embodiment of the present application further provides a driving method implemented based on the foregoing driving apparatus, where the driving method includes:
  • Step S101 Control the input module to access the start control signal, and trigger the pull-down module to make the second control node be at the second level when the start control signal is at the first level;
  • Step S102 Control the output module to access the first clock signal, and output a scan signal to the display panel according to the voltage applied to the first control node and the first clock signal, triggering the maintenance module to the The voltage of a control node is maintained;
  • Step S103 Control the pull-up module to access the second clock signal, and when the second clock signal is at the first level, the second control node is at the first level, triggering the maintenance module to The voltage of the second control node is maintained.
  • the method steps may be specifically performed by a display device (Timer Control Register, TCON) of the display device, or may be a general-purpose integrated circuit, such as a CPU (Central Processing Unit), or an ASIC (Application). Specific Integrated Circuit, ASIC.
  • TCON Timer Control Register
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • an embodiment of the present application further provides a driving system 00, including:
  • the start control unit 101 is configured to control the input module to access the start control signal, and trigger the pull-down module to cause the second control node to be at the second level when the start control signal is at the first level ;
  • the first clock control unit 102 is configured to control the output module to access the first clock signal, and output a scan signal to the display panel according to the voltage applied to the first control node and the first clock signal, triggering the Maintaining a voltage of the module to the first control node;
  • a second clock control unit 103 configured to control the pull-up module to access a second clock signal, and when the second clock signal is at a first level, enable the second control node to be at a first level, triggering
  • the maintenance module maintains a voltage of the second control node.
  • control unit can be implemented by a general-purpose integrated circuit, such as a CPU, or by an ASIC, which can also be a software program unit in the screen driver board of the display device.
  • one embodiment of the present application provides a display device 200 including a display panel 201, a control module 202, and a plurality of the driving devices 100 in the above embodiments.
  • the first level is higher than the second level.
  • the display panel can be any type of display panel, such as a liquid crystal display panel based on TFT-LCD (Thin Film Transistor Liquid Crystal Display) technology, and a liquid crystal display device based on LCD (Liquid Crystal Display).
  • a liquid crystal display panel based on TFT-LCD (Thin Film Transistor Liquid Crystal Display) technology
  • LCD Liquid Crystal Display
  • Technical liquid crystal display panel organic electric laser display panel based on OLED (Organic Electroluminescence Display) technology, quantum dot light emitting diode display panel or surface based on QLED (Quantum Dot Light Emitting Diodes) technology Display panel, etc.
  • OLED Organic Electroluminescence Display
  • QLED Quantum Dot Light Emitting Diodes
  • the control module 202 is configured to output a start control signal, a first clock signal, and a second clock signal.
  • control module is further for performing the steps in the above described driving method.
  • control module can be implemented by a general-purpose integrated circuit, such as a CPU, or by an ASIC, or can be a screen driver board.
  • the driving device 100 is connected between the control module and the display panel for outputting a scan signal to the display panel 201 according to the initial control signal, the first clock signal and the second clock signal.
  • modules in all embodiments of the present application can be implemented by a general-purpose integrated circuit, such as a CPU, or by an ASIC.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

一种显示装置(200)的驱动装置(100)及驱动方法,其中,驱动装置(100)包括:输入模块(10),接起始控制信号(STV)和第一控制节点(Q);输出模块(20),接第一控制节点(Q)、第一时钟信号(CK1)和显示面板(201);上拉模块(30),接第二时钟信号(CK2)和第二控制节点(P);下拉模块(40),接第一控制节点(Q)、第二控制节点(P)和共地端(VSS);以及维持模块(50),接第一控制节点(Q)、输出模块(20)的输出端、第二控制节点(P)和共地端(VSS)。

Description

显示装置的驱动装置及驱动方法 技术领域
本申请实施例属于显示技术领域,尤其涉及一种显示装置的驱动装置及驱动方法。
背景技术
随着显示技术的不断发展,液晶面板、显示器等显示设备不断向着轻薄化、大屏化、低功耗、低成本的方向发展。常见的显示产品的栅极驱动架构通常包括片上系统(System on chip,SOC)和阵列基板栅极驱动(Gate driver on array,GOA)两种。其中,阵列基板栅极驱动是直接将栅极驱动做在显示装置的玻璃基板上,可以避免使用栅极驱动芯片(Gate Driver IC),从而降低成本。阵列基板栅极驱动电路通过控制器输出晶体管的栅极电压(即Q点电压)来输出扫描信号。
然而,现有的阵列基板栅极驱动电路的时钟信号输入端与输出晶体管的栅极和输出端之间存在寄生电容,导致阵列基板栅极驱动电路输出的扫描信号会因为寄生电容的存在,而受时钟信号影响产生波动,严重影响了显示装置的显示效果。
技术问题
本申请实施例提供一种显示装置的驱动装置及驱动方法,旨在解决现有的阵列基板栅极驱动电路的时钟信号输入端与输出晶体管的栅极和输出端之间存在寄生电容,导致阵列基板栅极驱动电路输出的扫描信号会因为寄生电容的存在,而受时钟信号影响产生波动,严重影响了显示装置的显示效果的问题。
问题的解决方案
技术解决方案
本申请实施例一方面提供一种显示装置的驱动装置,所述显示装置包括显示面板,所述驱动装置包括:
输入模块,所述输入模块的输入端和输出端分别接起始控制信号和第一控制节 点;
输出模块,所述输出模块的控制端、输入端和输出端分别接所述第一控制节点、第一时钟信号和所述显示面板,用于根据施加于所述第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板;
上拉模块,所述上拉模块的输入端和输出端分别接第二时钟信号和第二控制节点,用于在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平;
下拉模块,所述下拉模块的控制端、输入端和输出端分别接所述第一控制节点、所述第二控制节点和共地端,用于在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;以及
维持模块,所述维持模块的第一输入端、第二输入端、控制端和输出端分别接所述第一控制节点、所述下拉模块的输出端、所述第二控制节点和所述共地端;
其中,第一电平高于第二电平。
在一个实施例中,所述输入模块包括第一电子开关单元,所述第一电子开关单元的输入端和控制端共接构成所述输入模块的输入端,所述第一电子开关单元的输出端为所述输入模块的输出端。
在一个实施例中,所述第一电子开关单元包括晶体管,所述晶体管的输入端和控制端分别构成所述第一电子开关单元的输入端和控制端,所述晶体管的输出端为所述第一电子开关单元的输出端。
在一个实施例中,所述输出模块包括:
第二电子开关单元,所述第二电子开关单元的控制端、输入端和输出端分别构成所述输出模块的控制端、输入端和输出端;
信号耦合隔离单元,所述信号耦合隔离单元连接在所述第二电子开关单元的控制端和输出端之间。
在一个实施例中,所述第二电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第二电子开关单元的控制端、输入端和输出端。
在一个实施例中,所述上拉模块包括第三电子开关单元,所述第三电子开关单 元的控制端和输入端共接构成所述上拉模块的输入端,所述第三电子开关单元的输出端构成所述上拉模块的输出端。
在一个实施例中,所述第三电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第三电子开关单元的控制端、输入端和输出端。
在一个实施例中,所述下拉模块包括第四电子开关单元,所述第四电子开关单元的控制端、输入端和输出端分别构成所述下拉模块的控制端、输入端和输出端。
在一个实施例中,所述第四电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第四电子开关单元的控制端、输入端和输出端。
在一个实施例中,所述维持模块包括:
第五电子开关单元,所述第五电子开关单元的输入端构成所述维持模块的第一输入端;
第六电子开关单元,所述第六电子开关单元的输入端构成所述维持模块的第二输入端,所述第五电子开关单元的控制端和所述第六电子开关单元的控制端共接构成所述维持模块的控制端,所述第五电子开关单元的输出端和所述第六电子开关单元的输出端共接构成所述维持模块的输出端。
在一个实施例中,所述第五电子开关单元包括晶体管,所述晶体管的输入端构成所述第五电子开关单元的输入端。
在一个实施例中,所述第六电子开关单元包括晶体管,所述晶体管的输入端构成所述第六电子开关单元的输入端,所述第五电子开关单元的控制端和所述晶体管的控制端共接构成所述维持模块的控制端,所述第五电子开关单元的输出端和所述晶体管的输出端共接构成所述维持模块的输出端。
本申请实施例另一方面还提供一种显示装置的驱动装置,所述显示装置包括显示面板,所述驱动装置包括:
输入模块,所述输入模块的输入端和输出端分别接起始控制信号和第一控制节点;
输出模块,所述输出模块的控制端、输入端和输出端分别接所述第一控制节点、第一时钟信号和所述显示面板,用于根据施加于所述第一控制节点的电压和 所述第一时钟信号输出扫描信号至所述显示面板;
上拉模块,所述上拉模块的输入端和输出端分别接第二时钟信号和第二控制节点,用于在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平;
下拉模块,所述下拉模块的控制端、输入端和输出端分别接所述第一控制节点、所述第二控制节点和共地端,用于在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;以及
维持模块,所述维持模块的第一输入端、第二输入端、控制端和输出端分别接所述第一控制节点、所述下拉模块的输出端、所述第二控制节点和所述共地端;
其中,第一电平高于第二电平;
其中,所述输入模块包括
第一电子开关单元,所述第一电子开关单元的输入端和控制端共接后接入起始控制信号,所述第一电子开关单元的输出端接所述第一控制节点;
其中,所述输出模块包括第二电子开关单元,所述第二电子开关单元的控制端、输入端和输出端分别接所述第一控制节点、第一时钟信号和所述显示面板,用于根据施加于所述第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板;以及信号耦合隔离单元,所述信号耦合隔离单元连接在所述第二电子开关单元的控制端和输出端之间;
其中,所述上拉模块包括第三电子开关单元,所述第三电子开关单元的控制端和输入端共接后接入第二时钟信号,所述第三电子开关单元的输出端接所述第二控制节点;
其中,所述下拉模块包括第四电子开关单元,所述第四电子开关单元的控制端、输入端和输出端分别接所述第一控制节点、所述第二控制节点和共地端,用于在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;
其中,所述维持模块包括第五电子开关单元,所述第五电子开关单元的输入端接所述第一控制节点;以及第六电子开关单元,所述第六电子开关单元的输入端接所述第四电子开关单元的输出端,所述第五电子开关单元的控制端和所述 第六电子开关单元的控制端共接后接所述第二控制节点,所述第五电子开关单元的输出端和所述第六电子开关单元的输出端共接于所述共地端。
在一个实施例中,所述第一电子开关单元包括晶体管,所述晶体管的输入端和控制端分别构成所述第一电子开关单元的输入端和控制端,所述晶体管的输出端为所述第一电子开关单元的输出端。
在一个实施例中,所述第二电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第二电子开关单元的控制端、输入端和输出端。
在一个实施例中,所述第三电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第三电子开关单元的控制端、输入端和输出端。
在一个实施例中,所述第四电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第四电子开关单元的控制端、输入端和输出端。
在一个实施例中,所述第五电子开关单元包括晶体管,所述晶体管的输入端构成所述第五电子开关单元的输入端。
在一个实施例中,所述第六电子开关单元包括晶体管,所述晶体管的输入端构成所述第六电子开关单元的输入端,所述第五电子开关单元的控制端和所述晶体管的控制端共接后接所述第二控制节点,所述第五电子开关单元的输出端和所述晶体管的输出端共接于所述共地端。
本申请实施例还提供一种显示装置的驱动方法,所述显示装置包括显示面板,所述驱动方法基于上述的驱动装置实现,所述驱动方法包括:
控制所述输入模块接入起始控制信号,触发所述下拉模块在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;
控制所述输出模块接入第一时钟信号,并根据施加于第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板,触发所述维持模块对所述第一控制节点的电压进行维持;
控制所述上拉模块接入第二时钟信号,并在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平,触发所述维持模块对所述第二控制节点的电压进行维持;
其中,第一电平高于第二电平。
发明的有益效果
有益效果
本申请实施例通过在显示装置的驱动装置中设置接第二时钟信号和第二控制节点上拉模块,并设置接第一控制节点和第二控制节点的下拉模块,用于在第二时钟信号为第一电平时,使第二控制节点处于第一电平;在起始控制信号为第一电平时,使第二控制节点处于第二电平,可以使扫描信号正常输出,保证显示装置的正常显示。
对附图的简要说明
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,下面描述中的附图是本申请的一些实施例,对于本领域普通技术人员来讲,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是范例的显示设备的驱动装置的结构及信号的示意图。
图2是本申请的一个实施例提供的显示装置的驱动装置的结构示意图。
图3是本申请的另一个实施例提供的显示装置的驱动装置的结构示意图。
图4是本申请的一个实施例提供的显示装置的驱动装置的控制信号和扫描信号的示意图。
图5是本申请的一个实施例提供的显示装置的驱动方法的流程框图。
图6是本申请的一个实施例提供的显示装置的驱动系统的结构框图。
图7是本申请的一个实施例提供的显示装置的结构示意图。
发明实施例
本发明的实施方式
为了使本技术领域的人员更好地理解本申请方案,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地描述,显然,所描述的实施例是本申请一部分的实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例, 都应当属于本申请保护的范围。
本申请的说明书和权利要求书及上述附图中的术语“包括”以及它们任何变形,意图在于覆盖不排他的包含。例如包含一系列步骤或单元的过程、方法或系统、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,术语“第一”、“第二”和“第三”等是用于区别不同对象,而非用于描述特定顺序。
显示屏的工艺架构,以栅极驱动设计来分,可以分为SOC(System on chip)和GOA(Gate driver on array)两种,分别如。然而GOA在面板设计上是一项重要技术,主要特色原本栅极驱动功能是利用数组曝光显影方式,将栅极驱动作在玻璃上,进而产生逻辑电路以驱动栅极讯号线,其优点是可以免去栅极驱动IC,降低成本。其中,GOA电路原理主要都是如图1(c)所示。
然而,一般GOA在作动时,输出(output)只有一条栅极线的时间会打开,其它时间的准位越低越好,表示关的越紧,越不会漏电,才不会造成功耗过大的现象,时序如图1(b)所示。
实际上M3 TFT会有际生电容Cgd及Cgs,如图1(c)所示,所以在设计考量上,Cgd/(Cgd+Cgs+C)*(Vgh-Vgl)<<Vt,那么输出才不会随着CKV跳动。但是因为Cgd很大,所以要让输出不随CKV跳动,必需有一个非常大的外挂电容C。M3因为有Cgd电容耦合,所以Q点电位会同步会被CKV影响。而Q点上升,则M3就会稍微被打开,M3打开,则输出就会跟着CKV摆动,如(图1(d)所示。
本申请实施例为了解决上述的问题,提供了一种显示设备的驱动装置。
如图2所示,本申请的一个实施例提供一种显示装置的驱动装置100,其包括输入模块10、输出模块20、上拉模块30、下拉模块40和维持模块50。
输入模块10的输入端和输出端分别接起始控制信号(STV信号)和第一控制节点Q(即Q点)。
在一个实施例中,输入模块10具体包括第一电子开关单元,第一电子开关单元的输入端和控制端共接构成输入模块10的输入端,第一电子开关单元的输出端 为输入模块10的输出端。第一电子开关单元可以为任意具有电子开关功能的器件,例如,晶体管。
如图3示例性的示出输入模块10包括第一晶体管M1,第一晶体管M1的输入端和控制端共接构成输入模块10的输入端,第一晶体管M1的输出端为输入模块10的输出端。
输出模块20的控制端、输入端和输出端分别接第一控制节点Q、第一时钟信号(CK信号)和显示面板,用于根据施加于第一控制节点的电压和第一时钟信号输出扫描信号至显示装置的显示面板。
在具体应用中,第一电平高于第二电平。
在具体应用中,显示面板可以为任意类型的显示面板,例如基于TFT-LCD(Thin Film Transistor Liquid Crystal Display,薄膜晶体管液晶显示器)技术的液晶显示面板、基于LCD(Liquid Crystal Display,液晶显示装置)技术的液晶显示面板、基于OLED(Organic Electroluminescence Display,有机电激光显示)技术的有机电激光显示面板、基于QLED(Quantum Dot Light Emitting Diodes,量子点发光二极管)技术的量子点发光二极管显示面板或曲面显示面板等。
在一个实施例中,输出模块20包括:
第二电子开关单元,第二电子开关单元的控制端、输入端和输出端分别构成所述输出模块20的控制端、输入端和输出端;
信号耦合隔离单元,信号耦合隔离单元连接在所述第二电子开关单元的控制端和输出端之间。
在具体应用中,第二电子开关单元可以为任意具有电子开关功能的器件,例如,晶体管。信号耦合隔离单元可以为任意具有信号隔离耦合作用的器件,例如电容。
如图3示例性的示出输出模块20包括第二晶体管M2和电容C,第二晶体管M2的输入端、输出端和控制端分别为输出模块20的输入端、输出端和控制端,电容C连接在第二晶体管M2的控制端和输出端之间。
上拉模块30的输入端和输出端分别接第二时钟信号(CK信号)和第二控制节点P,用于在第二时钟信号为第一电平时,使第二控制节点处于第一电平。
在一个实施例中,上拉模块30包括第三电子开关单元,第三电子开关单元的控制端和输入端共接构成上拉模块30的输入端,第三电子开关单元的输出端构成上拉模块30的输出端。
在具体应用中,第三电子开关单元可以为任意具有电子开关功能的器件,例如,晶体管。
如图3示例性的示出上拉模块30包括第三晶体管M3,第三晶体管M3的输入端和控制端共接构成上拉模块30的输入端,第三晶体管M3的输出端为上拉模块30的输出端。
下拉模块40的控制端、输入端和输出端分别接第一控制节点、第二控制节点和共地端VSS,用于在起始控制信号为第一电平时,使第二控制节点处于第二电平。
在一个实施例中,下拉模块40包括第四电子开关单元,第四电子开关单元的控制端、输入端和输出端分别构成下拉模块40的控制端、输入端和输出端。
在具体应用中,第四电子开关单元可以为任意具有电子开关功能的器件,例如,晶体管。
如图3示例性的示出下拉模块40包括第四晶体管M4,第四晶体管M4的输入端、输出端和控制端分别为下拉模块40的输入端、输出端和控制端。
维持模块50的第一输入端、第二输入端、控制端和输出端分别接第一控制节点Q、下拉模块40的输出端、第二控制节点P和共地端VSS。
在一个实施例中,维持模块50包括:
第五电子开关单元,第五电子开关单元的输入端构成维持模块50的第一输入端;
第六电子开关单元,第六电子开关单元的输入端构成维持模块50的第二输入端,第五电子开关单元的控制端和第六电子开关单元的控制端共接构成维持模块50的控制端,第五电子开关单元的输出端和第六电子开关单元的输出端共接构成维持模块50的输出端。
在具体应用中,第五电子开关单元或第六电子开关单元可以为任意具有电子开关功能的器件,例如,晶体管。
如图3示例性的示出维持模块50包括第五晶体管M5和第六晶体管M6,第五晶体管M5的输入端构成维持模块50的第一输入端;第六晶体管M6,第六晶体管M6的输入端构成维持模块50的第二输入端,第五晶体管M5的控制端和第六晶体管M6的控制端共接构成维持模块50的控制端,第五晶体管M5的输出端和第六晶体管M6的输出端共接构成维持模块50的输出端。在具体应用中,起始控制信号、第一时钟信号和第二时钟信号具体由显示装置的控制模块输出,控制模块可以通过通用集成电路,例如CPU(Central Processing Unit,中央处理器),或通过ASIC(Application Specific Integrated Circuit,专用集成电路)来实现,也可以为屏驱动板(Timer Control Register,TCON)。
在具体应用中,第一电平高于第二电平。
在具体应用中,本申请实施例中所有的电子开关单元均可以根据实际需要选用任意类型的具有电子开关功能的器件,例如,普通晶体管或薄膜晶体管(Thin Film Transistor,TFT),具体可以为N型金氧半导体(N-type metal oxide semiconductor,PMOS)晶体管或P型金氧半导体(P-type metal oxide semiconductor,PMOS)晶体管。
在一个实施例中,上述驱动装置具体包括阵列基板栅极驱动(Gate driver on array,GOA)电路。
在本申请一个实施例中,驱动装置同时包括第一电子开关单元、第二电子开关单元、信号耦合隔离单元、第三电子开关单元、第四电子开关单元、第五电子开关单元和第六电子开关单元,图3示例性的示出了驱动装置同时包括这些单元时的结构示意图。
如图4所示,示例性的示意出基于图3所示的驱动装置对显示面板进行驱动时,控制模块输出的各控制信号及输出至显示面板的扫描信号的波形图。
图4中,STV表示起始控制信号、CK1表示第一时钟信号、CK2表示第二时钟信号、P表示P点电压信号、Q表示Q点电压信号,OUT表示扫描信号。
由图4所示,基于上述驱动装置来驱动显示面板,可以使得输出的扫描信号的波形不随第一时钟信号发生改变,从而保证显示面板的正常显示。
本申请实施例通过在显示装置的驱动装置中设置接第二时钟信号和第二控制节 点的上拉模块,并设置接第一控制节点和第二控制节点的下拉模块,用于在第二时钟信号为第一电平时,使第二控制节点处于第一电平;在起始控制信号为第一电平时,使第二控制节点处于第二电平,可以使扫描信号正常输出,保证显示装置的正常显示。
如图5所示,本申请的一个实施例还提供一种基于上述的驱动装置实现的驱动方法,该驱动方法包括:
步骤S101:控制所述输入模块接入起始控制信号,触发所述下拉模块在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;
步骤S102:控制所述输出模块接入第一时钟信号,并根据施加于第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板,触发所述维持模块对所述第一控制节点的电压进行维持;
步骤S103:控制所述上拉模块接入第二时钟信号,并在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平,触发所述维持模块对所述第二控制节点的电压进行维持。
在具体应用中,上述方法步骤具体可以由显示装置的屏驱动板(Timer Control Register,TCON)来执行,也可以通用集成电路,例如CPU(Central Processing Unit,中央处理器),或通过ASIC(Application Specific Integrated Circuit,专用集成电路)来执行。
如图6所示,本申请的一个实施例还提供一种驱动系统00,其包括:
起始控制单元101,用于控制所述输入模块接入起始控制信号,触发所述下拉模块在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;
第一时钟控制单元102,用于控制所述输出模块接入第一时钟信号,并根据施加于第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板,触发所述维持模块对所述第一控制节点的电压维持;
第二时钟控制单元103,用于控制所述上拉模块接入第二时钟信号,并在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平,触发所述维持模块对所述第二控制节点的电压进行维持。
在具体应用中,上述控制单元可以通过通用集成电路,例如CPU,或通过ASIC 来实现,其也可以是显示装置的屏驱动板中的软件程序单元。
如图7所示,本申请的一个实施例提供一种显示装置200,其包括显示面板201、控制模块202和多个上述实施例中的驱动装置100。在具体应用中,第一电平高于第二电平。
在具体应用中,显示面板可以为任意类型的显示面板,例如基于TFT-LCD(Thin Film Transistor Liquid Crystal Display,薄膜晶体管液晶显示器)技术的液晶显示面板、基于LCD(Liquid Crystal Display,液晶显示装置)技术的液晶显示面板、基于OLED(Organic Electroluminescence Display,有机电激光显示)技术的有机电激光显示面板、基于QLED(Quantum Dot Light Emitting Diodes,量子点发光二极管)技术的量子点发光二极管显示面板或曲面显示面板等。
控制模块202,用于输出起始控制信号、第一时钟信号和第二时钟信号。
在一个实施例中,控制模块还用于执行上述驱动方法中的步骤。
在具体应用中,控制模块可以通过通用集成电路,例如CPU,或通过ASIC来实现,也可以为屏驱动板。
驱动装置100连接在所述控制模块和所述显示面板之间,用于根据起始控制信号、第一时钟信号和第二时钟信号输出扫描信号至显示面板201。
本申请所有实施例中的模块,可以通过通用集成电路,例如CPU,或通过ASIC来实现。
本申请实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来指令相关的硬件来完成,所述的程序可存储于一计算机可读取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。其中,所述的存储介质可为磁盘、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random Access Memory,RAM)等。
以上所述仅为本申请的较佳实施例而已,并不用以限制本申请,凡在本申请的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种显示装置的驱动装置,所述显示装置包括显示面板,所述驱动装置包括:
    输入模块,所述输入模块的输入端和输出端分别接起始控制信号和第一控制节点;
    输出模块,所述输出模块的控制端、输入端和输出端分别接所述第一控制节点、第一时钟信号和所述显示面板,用于根据施加于所述第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板;
    上拉模块,所述上拉模块的输入端和输出端分别接第二时钟信号和第二控制节点,用于在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平;
    下拉模块,所述下拉模块的控制端、输入端和输出端分别接所述第一控制节点、所述第二控制节点和共地端,用于在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;以及维持模块,所述维持模块的第一输入端、第二输入端、控制端和输出端分别接所述第一控制节点、所述下拉模块的输出端、所述第二控制节点和所述共地端;
    其中,第一电平高于第二电平。
  2. 如权利要求1所述的显示装置的驱动装置,其中,所述输入模块包括第一电子开关单元,所述第一电子开关单元的输入端和控制端共接构成所述输入模块的输入端,所述第一电子开关单元的输出端为所述输入模块的输出端。
  3. 如权利要求2所述的显示装置的驱动装置,其中,所述第一电子开关单元包括晶体管,所述晶体管的输入端和控制端分别构成所述第一电子开关单元的输入端和控制端,所述晶体管的输出端为所述第一电子开关单元的输出端。
  4. 如权利要求1所述的显示装置的驱动装置,其中,所述输出模块包 括:
    第二电子开关单元,所述第二电子开关单元的控制端、输入端和输出端分别构成所述输出模块的控制端、输入端和输出端;
    信号耦合隔离单元,所述信号耦合隔离单元连接在所述第二电子开关单元的控制端和输出端之间。
  5. 如权利要求4所述的显示装置的驱动装置,其中,所述第二电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第二电子开关单元的控制端、输入端和输出端。
  6. 如权利要求1所述的显示装置的驱动装置,其中,所述上拉模块包括第三电子开关单元,所述第三电子开关单元的控制端和输入端共接构成所述上拉模块的输入端,所述第三电子开关单元的输出端构成所述上拉模块的输出端。
  7. 如权利要求6所述的显示装置的驱动装置,其中,所述第三电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第三电子开关单元的控制端、输入端和输出端。
  8. 如权利要求1所述的显示装置的驱动装置,其中,所述下拉模块包括第四电子开关单元,所述第四电子开关单元的控制端、输入端和输出端分别构成所述下拉模块的控制端、输入端和输出端。
  9. 如权利要求8所述的显示装置的驱动装置,其中,所述第四电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第四电子开关单元的控制端、输入端和输出端。
  10. 如权利要求1所述的显示装置的驱动装置,其中,所述维持模块包括:
    第五电子开关单元,所述第五电子开关单元的输入端构成所述维持模块的第一输入端;
    第六电子开关单元,所述第六电子开关单元的输入端构成所述维持模块的第二输入端,所述第五电子开关单元的控制端和所述第六电子开关单元的控制端共接构成所述维持模块的控制端,所述 第五电子开关单元的输出端和所述第六电子开关单元的输出端共接构成所述维持模块的输出端。
  11. 如权利要求10所述的显示装置的驱动装置,其中,所述第五电子开关单元包括晶体管,所述晶体管的输入端构成所述第五电子开关单元的输入端。
  12. 如权利要求10所述的显示装置的驱动装置,其中,所述第六电子开关单元包括晶体管,所述晶体管的输入端构成所述第六电子开关单元的输入端,所述第五电子开关单元的控制端和所述晶体管的控制端共接构成所述维持模块的控制端,所述第五电子开关单元的输出端和所述晶体管的输出端共接构成所述维持模块的输出端。
  13. 一种显示装置的驱动装置,其中,所述显示装置包括显示面板,
    所述驱动装置包括:
    输入模块,所述输入模块的输入端和输出端分别接起始控制信号和第一控制节点;
    输出模块,所述输出模块的控制端、输入端和输出端分别接所述第一控制节点、第一时钟信号和所述显示面板,用于根据施加于所述第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板;
    上拉模块,所述上拉模块的输入端和输出端分别接第二时钟信号和第二控制节点,用于在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平;
    下拉模块,所述下拉模块的控制端、输入端和输出端分别接所述第一控制节点、所述第二控制节点和共地端,用于在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;以及维持模块,所述维持模块的第一输入端、第二输入端、控制端和输出端分别接所述第一控制节点、所述下拉模块的输出端、所述第二控制节点和所述共地端;
    其中,第一电平高于第二电平;
    其中,所述输入模块包括第一电子开关单元,所述第一电子开关单元的输入端和控制端共接后接入起始控制信号,所述第一电子开关单元的输出端接所述第一控制节点;
    其中,所述输出模块包括第二电子开关单元,所述第二电子开关单元的控制端、输入端和输出端分别接所述第一控制节点、所述第一时钟信号和所述显示面板,用于根据施加于所述第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板;以及信号耦合隔离单元,所述信号耦合隔离单元连接在所述第二电子开关单元的控制端和输出端之间;
    其中,所述上拉模块包括第三电子开关单元,所述第三电子开关单元的控制端和输入端共接后接入第二时钟信号,所述第三电子开关单元的输出端接所述第二控制节点;
    其中,所述下拉模块包括第四电子开关单元,所述第四电子开关单元的控制端、输入端和输出端分别接所述第一控制节点、所述第二控制节点和共地端,用于在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;
    其中,所述维持模块包括第五电子开关单元,所述第五电子开关单元的输入端接所述第一控制节点;以及第六电子开关单元,所述第六电子开关单元的输入端接所述第四电子开关单元的输出端,所述第五电子开关单元的控制端和所述第六电子开关单元的控制端共接后接所述第二控制节点,所述第五电子开关单元的输出端和所述第六电子开关单元的输出端共接于所述共地端。
  14. 如权利要求13所述的显示装置的驱动装置,其中,所述第一电子开关单元包括晶体管,所述晶体管的输入端和控制端分别构成所述第一电子开关单元的输入端和控制端,所述晶体管的输出端为所述第一电子开关单元的输出端。
  15. 如权利要求13所述的显示装置的驱动装置,其中,所述第二电子 开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第二电子开关单元的控制端、输入端和输出端。
  16. 如权利要求13所述的显示装置的驱动装置,其中,所述第三电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第三电子开关单元的控制端、输入端和输出端。
  17. 如权利要求13所述的显示装置的驱动装置,其中,所述第四电子开关单元包括晶体管,所述晶体管的控制端、输入端和输出端分别构成所述第四电子开关单元的控制端、输入端和输出端。
  18. 如权利要求13所述的显示装置的驱动装置,其中,所述第五电子开关单元包括晶体管,所述晶体管的输入端构成所述第五电子开关单元的输入端。
  19. 如权利要求13所述的显示装置的驱动装置,其中,所述第六电子开关单元包括晶体管,所述晶体管的输入端构成所述第六电子开关单元的输入端,所述第五电子开关单元的控制端和所述晶体管的控制端共接后接所述第二控制节点,所述第五电子开关单元的输出端和所述晶体管的输出端共接于所述共地端。
  20. 一种显示装置的驱动方法,其中,所述显示装置包括显示面板,所述驱动方法基于权利要求1所述的驱动装置实现,所述驱动方法包括:
    控制所述输入模块接入所述起始控制信号,触发所述下拉模块在所述起始控制信号为第一电平时,使所述第二控制节点处于第二电平;
    控制所述输出模块接入所述第一时钟信号,并根据施加于第一控制节点的电压和所述第一时钟信号输出扫描信号至所述显示面板,触发所述维持模块对所述第一控制节点的电压进行维持;
    控制所述上拉模块接入所述第二时钟信号,并在所述第二时钟信号为第一电平时,使所述第二控制节点处于第一电平,触发所述维持模块对所述第二控制节点的电压进行维持;
    其中,第一电平高于第二电平。
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