WO2017063225A1 - Oled栅极驱动电路架构 - Google Patents

Oled栅极驱动电路架构 Download PDF

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Publication number
WO2017063225A1
WO2017063225A1 PCT/CN2015/092796 CN2015092796W WO2017063225A1 WO 2017063225 A1 WO2017063225 A1 WO 2017063225A1 CN 2015092796 W CN2015092796 W CN 2015092796W WO 2017063225 A1 WO2017063225 A1 WO 2017063225A1
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Prior art keywords
electrically connected
output
input
input end
gate
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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
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PCT/CN2015/092796
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English (en)
French (fr)
Inventor
邝继木
吴智豪
胡厚亮
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to GB1803605.3A priority Critical patent/GB2557134B/en
Priority to JP2018515773A priority patent/JP6593898B2/ja
Priority to US14/890,911 priority patent/US9953580B2/en
Priority to KR1020187006683A priority patent/KR102029608B1/ko
Publication of WO2017063225A1 publication Critical patent/WO2017063225A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3266—Details of drivers for scan electrodes
    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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]
    • G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • 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
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • 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
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an OLED gate driving circuit architecture.
  • OLED Organic Light Emitting Display
  • OLED Organic Light Emitting Display
  • OLED displays can be classified into two types: passive matrix OLED (PMOLED) and active matrix OLED (AMOLED), namely direct addressing and thin film transistor (TFT). ) Matrix addressing two categories.
  • PMOLED passive matrix OLED
  • AMOLED active matrix OLED
  • TFT thin film transistor
  • Matrix addressing two categories the AMOLED display has pixels arranged in an array, belongs to an active display type, has high luminous efficiency, and is generally used for a high-definition large-sized display device.
  • a conventional 3T1C pixel driving circuit for an OLED includes a first thin film transistor, a second thin film transistor, and a third thin film transistor.
  • the first thin film transistor is a switching thin film transistor for controlling charging of the organic light emitting diode OLED;
  • the second thin film transistor is a driving thin film transistor;
  • the third thin film transistor is for controlling discharge of the organic light emitting diode OLED.
  • FIG. 1 is a structural block diagram of an existing OLED gate driving circuit architecture, including an OLED panel, a gate charging driving circuit, a gate discharging driving circuit, a source driving circuit, the gate charging driving circuit, and a gate discharge driving
  • the circuits are respectively disposed on the left and right sides of the OLED panel, and the gate charging driving circuit and the gate discharging driving circuit are implemented by using different gate driving integrated circuits (ICs).
  • ICs gate driving integrated circuits
  • the above OLED gate driving circuit architecture requires two gate driving ICs to realize, and the hardware cost is high; and increasing the peripheral circuit of the OLED panel causes the panel frame to be widened, which increases the technical requirements and costs.
  • the object of the present invention is to provide an OLED gate driving circuit architecture, which can realize charging and discharging processes of a gate driving circuit by using only one gate driving integrated circuit, can save hardware cost, simplify panel wiring circuit, and The panel border is narrowed.
  • the present invention provides an OLED gate driving circuit architecture, including: an OLED panel, a gate charging and discharging driving circuit, a logic processing unit, and a source driving circuit;
  • the gate charging and discharging driving circuit is disposed on one side of the OLED panel, and the gate charging and discharging driving circuit is provided with a plurality of output ends, and each output terminal is electrically connected to the logic processing unit through a signal line;
  • the logic processing unit is disposed in the OLED panel, and the logic processing unit receives a scan signal transmitted from a gate charge and discharge drive circuit through a signal line, and converts the scan signal into a discharge scan signal and a charge scan signal.
  • the source driving circuit is coupled to the OLED panel and provides a data signal to the OLED panel.
  • the OLED display panel includes a plurality of pixel driving circuits arranged in an array, each of the pixel driving circuits including a capacitor and three thin film transistors.
  • the logical processing unit includes:
  • a first input buffer an input end of the first input buffer inputs a clock signal, and an output end is electrically connected to an input end of the global buffer;
  • the output end of the global buffer is electrically connected to the C end of the first D flip-flop and the C end of the second D flip-flop;
  • the input end of the second input buffer inputs a reset signal, and the output end is electrically connected to the input end of the first lookup table
  • the output of the first lookup table is electrically connected to the CLR end of the first D flip-flop and the CLR end of the second D flip-flop;
  • a third input buffer the input end of the third input buffer inputs a scan signal, and the output end is electrically connected to the D end of the first D flip-flop, the first input end of the second lookup table, and the third lookup table An input terminal and a second input terminal of the fourth lookup table;
  • the CE end of the first D flip-flop is electrically connected to a constant voltage high potential, and the Q end is electrically connected to the second input end of the second look-up table;
  • the third input end of the second lookup table is electrically connected to the second input end of the third lookup table and the first input end of the fourth lookup table, and the output end is electrically connected to the second D trigger D end of the device;
  • the CE end of the second D flip-flop is electrically connected to a constant voltage high potential, and the Q end is electrically connected to the third input end of the second look-up table and the second input of the third look-up table End, And a first input of the fourth lookup table;
  • the output end of the third lookup table is electrically connected to the input end of the first output buffer
  • the output end of the fourth lookup table is electrically connected to the input end of the second output buffer
  • the output of the second output buffer outputs a second output signal.
  • the period of the first output signal and the second output signal is twice the period of the scan signal, the duty ratio is 1/4, and the pulse position is synchronized with the pulse of the corresponding scan signal;
  • the pulse positions of the second output signal and the first output signal do not overlap each other.
  • One of the first output signal and the second output signal serves as a charge scan signal and the other serves as a discharge scan signal.
  • the first input buffer, the second input buffer, the third input buffer, the global buffer, the first output buffer, and the second output buffer each include: first to sixth three-stage tubes, first To a third diode, and first to fifth resistors;
  • the base of the first three-stage tube is electrically connected to one end of the first resistor, the emitter is electrically connected to the anode of the first diode, and the collector is electrically connected to the base of the second transistor;
  • the emitter of the second tertiary tube is electrically connected to one end of the third resistor and the base of the third transistor, and the collector is electrically connected to one end of the second resistor and the anode of the second diode;
  • the emitter of the third transistor is electrically connected to the other end of the third resistor and one end of the fifth resistor, and the collector is electrically connected to the anode of the second diode and the base of the fourth transistor;
  • the emitter of the fourth transistor is electrically connected to the other end of the fifth resistor and the base of the sixth transistor, and the collector is electrically connected to one end of the fourth resistor and the base of the fifth transistor;
  • the emitter of the fifth transistor is electrically connected to the anode of the third diode, and the
  • a negative electrode of the first diode and an emitter of the first transistor are an input terminal, and a collector of the third diode and a collector of the sixth transistor are an output terminal;
  • the potential of the input signal at the input is the same as the potential of the output signal at the output.
  • the first D flip-flop and the second D flip-flop each include first to sixth NAND gates
  • the first input end of the first NAND gate is used as the CLR end of the D flip-flop, the second input end is electrically connected to the first input end of the third NAND gate, and the output end is electrically connected to the second NAND gate.
  • the third input is electrically connected to the first input end of the fourth NAND gate, and the output end is electrically connected to the first input end of the fifth NAND gate;
  • the third The third input end of the NAND gate is electrically connected to the output end of the fourth NAND gate, the output end is electrically connected to the second input end of the sixth NAND gate;
  • the second input end of the fourth NAND gate a D-terminal of the D-type flip-flop;
  • the second input end of the fifth NAND gate is electrically connected to the output end of the sixth NAND gate;
  • the first input end of the sixth NAND gate is electrically connected to the first The output
  • the second lookup table includes: first and second inverters, and first and second AND gates;
  • the input end of the first inverter is used as a first input end of the second look-up table, the output end is electrically connected to the first input end of the first AND gate; the input end of the second inverter is used as the second a third input end of the look-up table, the output end is electrically connected to the second input end of the second AND gate; the second input end of the first AND gate is used as the second input end of the second look-up table, and the output end is electrically Connected to a first input of the second AND gate; the second AND gate output serves as an output of the second lookup table.
  • the third lookup table includes: a third inverter and a third AND gate;
  • the input end of the third inverter is the second input end of the third look-up table, and the output end is electrically connected to the second input end of the third AND gate; the first input end of the third AND gate As a first input of the third lookup table, the output serves as an output of the third lookup table.
  • the fourth lookup table includes a fourth AND gate
  • the invention also provides an OLED gate driving circuit architecture, comprising: an OLED panel, a gate charging and discharging driving circuit, a logic processing unit, and a source driving circuit;
  • the gate charging and discharging driving circuit is disposed on one side of the OLED panel, and the gate charging and discharging driving circuit is provided with a plurality of output ends, and each output terminal is electrically connected to the logic processing unit through a signal line;
  • the logic processing unit is disposed in the OLED panel, and the logic processing unit receives a scan signal transmitted from a gate charge and discharge drive circuit through a signal line, and converts the scan signal into a discharge scan signal and a charge scan signal.
  • the source driving circuit is connected to the OLED panel and provides a data signal to the OLED panel;
  • the OLED display panel includes a plurality of pixel driving circuits arranged in an array, each of the pixel driving circuits including a capacitor and three thin film transistors;
  • the logical processing unit includes:
  • a first input buffer the input of the first input buffer inputs a clock signal, and outputs
  • the terminal is electrically connected to the input end of the global buffer
  • the output end of the global buffer is electrically connected to the C end of the first D flip-flop and the C end of the second D flip-flop;
  • the input end of the second input buffer inputs a reset signal, and the output end is electrically connected to the input end of the first lookup table
  • the output of the first lookup table is electrically connected to the CLR end of the first D flip-flop and the CLR end of the second D flip-flop;
  • a third input buffer the input end of the third input buffer inputs a scan signal, and the output end is electrically connected to the D end of the first D flip-flop, the first input end of the second lookup table, and the third lookup table An input terminal and a second input terminal of the fourth lookup table;
  • the CE end of the first D flip-flop is electrically connected to a constant voltage high potential, and the Q end is electrically connected to the second input end of the second look-up table;
  • the third input end of the second lookup table is electrically connected to the second input end of the third lookup table and the first input end of the fourth lookup table, and the output end is electrically connected to the second D trigger D end of the device;
  • the CE end of the second D flip-flop is electrically connected to a constant voltage high potential, and the Q end is electrically connected to the third input end of the second look-up table and the second input of the third look-up table And a first input of the fourth lookup table;
  • the output end of the third lookup table is electrically connected to the input end of the first output buffer
  • the output end of the fourth lookup table is electrically connected to the input end of the second output buffer
  • the output of the second output buffer outputs a second output signal
  • the period of the first output signal and the second output signal is twice the period of the scan signal, the duty ratio is 1/4, and the pulse position is synchronized with the pulse of the corresponding scan signal;
  • the pulse positions of the second output signal and the first output signal do not overlap each other;
  • one of the first output signal and the second output signal is used as a charging scan signal, and the other is used as a discharge scanning signal.
  • the OLED gate driving circuit architecture provided by the present invention is configured by a gate charging and discharging driving circuit disposed on one side of the OLED panel, and a logic processing electrically connected to the gate charging and discharging driving circuit
  • the unit converts the scan signal into a discharge scan signal and a charge scan signal to provide an OLED display panel through a logic processing unit, and the gate drive circuit can be realized by using only one gate drive integrated circuit (ie, a gate charge and discharge drive circuit) Charging
  • a gate drive integrated circuit is reduced, which can save hardware cost, simplify panel wiring circuit, and narrow the panel frame.
  • FIG. 3 is a circuit diagram of a logic processing unit in an OLED gate drive circuit architecture of the present invention.
  • FIG. 4 is a simulation waveform diagram of the circuit shown in FIG. 3;
  • FIG. 5 is a circuit diagram of each of the buffers in the logic processing unit shown in Figure 3;
  • FIG. 6 is a circuit diagram of a D flip-flop in the logic processing unit shown in FIG. 3;
  • FIG. 7 is a circuit diagram of a second lookup table in the logic processing unit shown in FIG. 3;
  • FIG. 8 is a circuit diagram of a third lookup table in the logic processing unit shown in FIG. 3;
  • FIG. 9 is a circuit diagram of a fourth lookup table in the logic processing unit of FIG.
  • the present invention provides an OLED gate driving circuit architecture, including: an OLED panel, a gate charging and discharging driving circuit, a logic processing unit, and a source driving circuit; and the gate charging and discharging driving circuit is disposed on the OLED On one side of the panel, the gate charging and discharging driving circuit is provided with a plurality of output ends, each of which is electrically connected to the logic processing unit through a signal line; the logic processing unit is disposed in the OLED panel The logic processing unit receives the scan signal transmitted from the gate charge and discharge drive circuit through the signal line, and converts the scan signal into a discharge scan signal and a charge scan signal to be provided to the OLED display panel; the source drive circuit and The OLED panels are connected and provide data signals to the OLED panel.
  • the gate charge and discharge driving circuit is composed of a gate driving IC
  • the OLED display panel includes a plurality of arrayed pixel driving circuits, each of which includes a capacitor and three thin film transistors.
  • the pixel driving circuit includes a first film a transistor, a second thin film transistor, a third thin film transistor, and a capacitor.
  • the first thin film transistor is a charging thin film transistor for controlling charging of the organic light emitting diode OLED, and the charging scan signal converted by the logic processing unit is supplied to the first thin film transistor to control the OLED panel.
  • Charging; the second thin film transistor is a driving thin film transistor;
  • the third thin film transistor is a discharging thin film transistor, and discharging the discharge scanning signal converted by the logic processing unit to the third thin film transistor to control discharge of the OLED panel.
  • the logic processing unit includes: a first input buffer IBUF1, an input terminal of the first input buffer IBUF1 inputs a clock signal PWM_CLK, and an output terminal is electrically connected to an input end of the global buffer BUFG;
  • the output of the global buffer BUFG is electrically connected to the C terminal of the first D flip-flop FDCE1 and the C terminal of the second D flip-flop FDCE2;
  • the second input buffer IBUF2, the second input buffer IBUF2 The input terminal is connected to the reset signal RST_n, and the output terminal is electrically connected to the input end of the first lookup table LUT1;
  • the first lookup table LUT1, the output end of the first lookup table LUT1 is electrically connected to the CLR end of the first D flip-flop FDCE1
  • the third input buffer IBUF3, the input end of the third input buffer IBUF3 inputs a scan signal Gate_in, and the output end is electrically connected to the D end of the first D flip-flop FD
  • the logic processing unit inputs the clock signal PWM_CLK, the reset signal RST_n, and the scan signal Gate_in, and outputs the second output signal Gate_out2 and the first output signal Gate_out1 according to the design timing.
  • the output of the first output signal Gate_out1 and the second output signal Gate_out2 is twice the period of the scan signal Gate_in, the duty ratio is 1/4, and the pulse position is synchronized with the pulse of the corresponding scan signal Gate_in; the second output The pulse positions of the signal Gate_out2 and the first output signal Gate_out1 do not overlap each other.
  • one of the first output signal Gate_out1 and the second output signal Gate_out2 is used as a charging scan signal, and the other is used as a discharge scanning signal.
  • the circuit shown in FIG. 3 includes a first input buffer IBUF1, a second input buffer IBUF2, a third input buffer IBUF3, a global buffer BUFG, and a first output buffer.
  • Each of the buffers OBUF1 and the second output buffer OBUF2 has the structure shown in FIG. 5.
  • the buffer includes: first to sixth three-stage tubes Q1-Q6, first to first Three diodes D1-D3, and first to fifth resistors R1-R5;
  • the base of the first three-stage tube Q1 is electrically connected to one end of the first resistor R1, the emitter is electrically connected to the cathode of the first diode D1, and the collector is electrically connected to the second transistor Q2.
  • the emitter of the second three-stage tube Q2 is electrically connected to one end of the third resistor R3 and the base of the third transistor Q3, and the collector is electrically connected to one end of the second resistor R2 and the second
  • the emitter of the third transistor Q3 is electrically connected to the other end of the third resistor R3 and one end of the fifth resistor R5, and the collector is electrically connected to the second diode D2.
  • the emitter of the fourth transistor Q4 is electrically connected to the other end of the fifth resistor R5 and the base of the sixth transistor Q6, and the collector is electrically connected An end of the fourth resistor R4 and a base of the fifth transistor Q5; an emitter of the fifth transistor Q5 is electrically connected to the anode of the third diode D3, and the collector is electrically connected to the fourth The other end of the resistor R4; the emitter of the sixth transistor Q6 is electrically connected to one end of the fifth resistor R5, and the collector is electrically connected to the cathode of the third diode D3;
  • the other ends of the first, second, and fourth resistors R1, R2, and R4 are electrically connected to the power supply voltage VCC; the anode of the first diode D1 is electrically connected to the other end of the third resistor R3. ;
  • the emitter of the first diode D1 and the emitter of the first transistor Q1 are the input terminal INPUT, the cathode of the third diode D3 and the collector of the sixth transistor Q6 are the output terminal OUTPUT ;
  • the potential of the input signal of the input terminal INPUT is the same as the potential of the output signal of the output terminal OUTPUT.
  • an NMOS transistor may be used instead of the first to sixth transistors Q1-Q6 in the buffer shown in FIG. 5, the buffer having the following characteristics: when the input signal of the input terminal INPUT is high, the output terminal When the output signal of OUTPUT is high, and the input signal of input terminal INPUT is low, the output signal of output terminal OUTPUT is low.
  • the circuit shown in FIG. 3 includes a first D flip-flop.
  • Each D flip-flop including FDCE1 and second D flip-flop FDCE2 has the structure shown in FIG. 6, including first to sixth NAND gates NADN1-NAND6;
  • the first input end of the first NAND gate NAND1 is used as the CLR end of the D flip-flop, the second input end is electrically connected to the first input end of the third NAND gate NADN3, and the output end is electrically connected to the second a first input end of the NOT gate NAND2; a second input end of the second NAND gate NAND2 and a second input end of the third NAND gate NAND3 are electrically connected together as a C terminal of the D flip-flop, and a third input end Electrically connected to the first input end of the fourth NAND gate NAND4, the output end is electrically connected to the first input end of the fifth NAND gate NAND5; the third input end of the third NAND gate NAND3 is electrically connected The output terminal of the fourth NAND gate NAND6 is electrically connected to the second input terminal of the sixth NAND gate NAND6; the second input terminal of the fourth NAND gate NAND4 serves as the D terminal of the D flip-flop; The second input end of the fifth NAND gate NAND5 is electrically connected
  • the second lookup table LUT2 includes: first and second inverters F1, F2 and first and second AND gates AND1, AND2; the first inverter F1 The input end is the first input end of the second lookup table LUT2 (ie, the I0 end shown in FIG. 7), the output end is electrically connected to the first input end of the first AND gate AND1; the second inverter F2 is The input end serves as a third input end of the second lookup table LUT2 (ie, the I2 end shown in FIG.
  • the output end is electrically connected to the second input end of the second AND gate AND2; the second of the first AND gate AND1
  • the input end is the second input end of the second lookup table LUT2 (ie, the I1 end shown in FIG. 7), the output end is electrically connected to the first input end of the second AND gate AND2; the output end of the second AND gate AND2 As the output of the second lookup table LUT2.
  • the third lookup table LUT3 includes: a third inverter F3 and a third AND gate AND3; an input end of the third inverter F3 serves as a second input of the third lookup table LUT3.
  • the end ie, the I1 end shown in FIG. 8
  • the output end is electrically connected to the second input end of the third AND gate AND3; the first input end of the third AND gate AND3 is used as the third lookup table LUT3
  • An input terminal ie, the I0 terminal shown in FIG. 8) has an output terminal as an output terminal of the third lookup table LUT3.
  • the fourth lookup table LUT4 includes a fourth AND gate AND4; the first input end of the fourth AND gate AND4 serves as a first input end of the fourth lookup table LUT4 (ie, as shown in FIG. Referring to the I0 terminal), the second input terminal serves as a second input terminal of the fourth lookup table LUT4 (ie, the I1 terminal shown in FIG. 9), and the output terminal serves as an output terminal of the fourth lookup table LUT4.
  • the OLED gate driving circuit architecture provided by the present invention is provided with a gate charging and discharging driving circuit disposed on one side of the OLED panel, and a logic processing unit electrically connected to the gate charging and discharging driving circuit.
  • a gate charging and discharging driving circuit disposed on one side of the OLED panel
  • a logic processing unit electrically connected to the gate charging and discharging driving circuit.
  • Translating the scan signal into a discharge scan signal and a charge scan signal by a logic processing unit to provide an OLED display panel, and the gate drive circuit can be realized by using only one gate drive integrated circuit (ie, a gate charge and discharge drive circuit)
  • the charging and discharging process reduces the gate drive integrated circuit compared to the prior art, saves hardware costs, simplifies the panel wiring circuit, and narrows the panel frame.

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Abstract

一种OLED栅极驱动电路架构，包括：OLED面板、栅极充放电驱动电路、逻辑处理单元、及源极驱动电路；栅极充放电驱动电路设于OLED面板的一侧，栅极充放电驱动电路设有多个输出端，每一输出端通过一信号线与逻辑处理单元电性连接；逻辑处理单元设于OLED显示面板内，逻辑处理单元通过信号线接收栅极充放电驱动电路传来的扫描信号，并将扫描信号转换为放电扫描信号和充电扫描信号提供给OLED面板；所述源极驱动电路与所述OLED面板相连，并向所述OLED面板提供数据信号，该架构仅采用一个栅极驱动集成电路即可实现栅极驱动电路的充电和放电过程，能够节省硬件成本，简化面板布线电路，并使面板边框变窄。

Description

OLED栅极驱动电路架构 技术领域
本发明涉及显示技术领域，尤其涉及一种OLED栅极驱动电路架构。
背景技术
有机发光二极管(Organic Light Emitting Display，OLED)显示器具有自发光、驱动电压低、发光效率高、响应时间短、清晰度与对比度高、近180°视角、使用温度范围宽，可实现柔性显示与大面积全彩显示等诸多优点，被业界公认为是最有发展潜力的显示器。
OLED显示器按照驱动方式可以分为无源矩阵型OLED(Passive Matrix OLED，PMOLED)和有源矩阵型OLED(Active Matrix OLED，AMOLED)两大类，即直接寻址和薄膜晶体管(Thin Film Transistor，TFT)矩阵寻址两类。其中，AMOLED显示器具有呈阵列式排布的像素，属于主动显示类型，发光效能高，通常用于高清晰度的大尺寸显示装置。
现有的用于OLED的3T1C像素驱动电路，包括一第一薄膜晶体管、一第二薄膜晶体管、一第三薄膜晶体管。其中，第一薄膜晶体管为开关薄膜晶体管，用于控制对有机发光二极管OLED的充电；第二薄膜晶体管为驱动薄膜晶体管；第三薄膜晶体管用于控制对有机发光二极管OLED的放电。通过控制第一薄膜晶体管和第三薄膜晶体管打开的时间来控制子场(Subframe)充电时间的长短，结合人眼对亮度的感知是时间上的积分原理，可使用数位电压(即两个Gamma电压)来显示不同灰阶亮度影像。
如图1为现有的OLED栅极驱动电路架构的结构框图，包括OLED面板、栅极充电驱动电路、栅极放电驱动电路、源极驱动电路，所述栅极充电驱动电路和栅极放电驱动电路分别置于OLED面板的左右两侧，所述栅极充电驱动电路和栅极放电驱动电路由用不同的栅极驱动集成电路(Integrated Circuit，IC)实现。该OLED栅极驱动电路架构的优点是可以利用成熟的栅极驱动IC来实现。
但上述OLED栅极驱动电路架构需要两个栅极驱动IC来实现，硬件成本高；并且增加OLED面板的周边电路会导致面板边框变宽，加大了技术要求和成本。
发明内容
本发明的目的在于提供一种OLED栅极驱动电路架构，该架构仅采用一个栅极驱动集成电路即可实现栅极驱动电路的充电和放电过程，能够节省硬件成本，简化面板布线电路，并使面板边框变窄。
为实现上述目的，本发明提供一种OLED栅极驱动电路架构，包括：OLED面板、栅极充放电驱动电路、逻辑处理单元、及源极驱动电路；
所述栅极充放电驱动电路设于OLED面板的一侧，所述栅极充放电驱动电路设有多个输出端，每一输出端通过一信号线与所述逻辑处理单元电性连接；
所述逻辑处理单元设于所述OLED面板内，所述逻辑处理单元通过信号线接收栅极充放电驱动电路传来的扫描信号，并将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板；
所述源极驱动电路与所述OLED面板相连，并向所述OLED面板提供数据信号。
所述OLED显示面板包括多个呈阵列排布的像素驱动电路，每一像素驱动电路均包括一个电容和三个薄膜晶体管。
所述逻辑处理单元包括：
第一输入缓冲器，所述第一输入缓冲器的输入端输入时钟信号，输出端电性连接全局缓冲器的输入端；
全局缓冲器，所述全局缓冲器的输出端电性连接第一D触发器的C端与第二D触发器的C端；
第二输入缓冲器，所述第二输入缓冲器的输入端输入复位信号，输出端电性连接第一查找表的输入端；
第一查找表，所述第一查找表的输出端电性连接第一D触发器的CLR端与第二D触发器的CLR端；
第三输入缓冲器，所述第三输入缓冲器的输入端输入扫描信号，输出端电性连接第一D触发器的D端、第二查找表的第一输入端、第三查找表的第一输入端、及第四查找表的第二输入端；
第一D触发器，所述第一D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的第二输入端；
第二查找表，所述第二查找表的第三输入端电性连接于第三查找表的第二输入端和第四查找表的第一输入端，输出端电性连接于第二D触发器的D端；
第二D触发器，所述第二D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的的第三输入端、第三查找表的第二输入端、 及第四查找表的第一输入端；
第三查找表，所述第三查找表的输出端电性连接于第一输出缓冲器的输入端；
第一输出缓冲器，所述第一输出缓冲器的输出端输出第一输出信号；
第四查找表，所述第四查找表的输出端电性连接于第二输出缓冲器的输入端；
第二输出缓冲器，所述第二输出缓冲器的输出端输出第二输出信号。
所述第一输出信号和第二输出信号的周期为扫描信号周期的二倍，占空比为1/4，且脉冲位置与对应的扫描信号的脉冲同步；
所述第二输出信号与第一输出信号的脉冲位置不相互重叠。
所述第一输出信号与第二输出信号的其中一个作为充电扫描信号，另一个作为放电扫描信号。
所述第一输入缓冲器、第二输入缓冲器、第三输入缓冲器、全局缓冲器、第一输出缓冲器、及第二输出缓冲器均包括：第一至第六三级管、第一至第三二极管、及第一至第五电阻；
所述第一三级管的基极电性连接于第一电阻的一端，发射极电性连接于第一二极管的负极，集电极电性连接于第二三极管的基极；所述第二三级管的发射极电性连接于第三电阻的一端和第三三极管的基极，集电极电性连接于第二电阻的一端和第二二极管的正极；所述第三三极管的发射极电性连接于第三电阻的另一端和第五电阻的一端，集电极电性连接于第二二极管的负极和第四三极管的基极；所述第四三极管的发射极电性连接于第五电阻的另一端和第六三极管的基极，集电极电性连接于第四电阻的一端和第五三极管的基极；所述第五三极管的发射极电性连接于第三二极管的正极，集电极电性连接于第四电阻的另一端；所述第六三极管的发射极电性连接于第五电阻的一端，集电极电性连接于第三二极管的负极；所述第一、第二、第四电阻的另一端电性连接于电源电压；所述第一二极管的正极电性连接于所述第三电阻的另一端；
所述第一二极管的负极与所述第一三极管的发射极为输入端，所述第三二极管的负极和第六三极管的集电极为输出端；
所述输入端的输入信号的电位与所述输出端的输出信号的电位相同。
所述第一D触发器、及第二D触发器均包括第一至第六与非门；
所述第一与非门的第一输入端作为D触发器的CLR端，第二输入端电性连接于第三与非门的第一输入端，输出端电性连接于第二与非门的第一输入端；所述第二与非门的第二输入端与第三与非门的第二输入端电性连 接共同作为D触发器的C端，第三输入端电性连接于第四与非门的第一输入端，输出端电性连接于第五与非门的第一输入端；所述第三与非门的第三输入端电性连接于第四与非门的输出端，输出端电性连接于第六与非门的第二输入端；所述第四与非门的第二输入端作为D触发器的D端；所述第五与非门的第二输入端电性连接于第六与非门的输出端；所述第六与非门的第一输入端电性连接于第五与非门的输出端并作为D触发器的Q端。
所述第二查找表包括：第一、及第二反相器和第一、及第二与门；
所述第一反相器的输入端作为第二查找表的第一输入端，输出端电性连接于第一与门的第一输入端；所述第二反相器的输入端作为第二查找表的第三输入端，输出端电性连接于第二与门的第二输入端；所述第一与门的第二输入端作为第二查找表的第二输入端，输出端电性连接于第二与门的第一输入端；所述第二与门输出端作为第二查找表的输出端。
所述第三查找表包括：第三反相器和第三与门；
所述第三反相器的输入端作为所述第三查找表的第二输入端，输出端电性连接于第三与门的第二输入端；所述第三与门的第一输入端作为所述第三查找表的第一输入端，输出端作为所述第三查找表的输出端。
所述第四查找表包括第四与门；
所述第四与门的第一输入端作为所述第四查找表的第一输入端，第二输入端作为所述第四查找表的第二输入端，输出端作为所述第四查找表的输出端。
本发明还提供一种OLED栅极驱动电路架构，包括：OLED面板、栅极充放电驱动电路、逻辑处理单元、及源极驱动电路；
所述栅极充放电驱动电路设于OLED面板的一侧，所述栅极充放电驱动电路设有多个输出端，每一输出端通过一信号线与所述逻辑处理单元电性连接；
所述逻辑处理单元设于所述OLED面板内，所述逻辑处理单元通过信号线接收栅极充放电驱动电路传来的扫描信号，并将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板；
所述源极驱动电路与所述OLED面板相连，并向所述OLED面板提供数据信号；
其中，所述OLED显示面板包括多个呈阵列排布的像素驱动电路，每一像素驱动电路均包括一个电容和三个薄膜晶体管；
其中，所述逻辑处理单元包括：
第一输入缓冲器，所述第一输入缓冲器的输入端输入时钟信号，输出 端电性连接全局缓冲器的输入端；
全局缓冲器，所述全局缓冲器的输出端电性连接第一D触发器的C端与第二D触发器的C端；
第二输入缓冲器，所述第二输入缓冲器的输入端输入复位信号，输出端电性连接第一查找表的输入端；
第一查找表，所述第一查找表的输出端电性连接第一D触发器的CLR端与第二D触发器的CLR端；
第三输入缓冲器，所述第三输入缓冲器的输入端输入扫描信号，输出端电性连接第一D触发器的D端、第二查找表的第一输入端、第三查找表的第一输入端、及第四查找表的第二输入端；
第一D触发器，所述第一D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的第二输入端；
第二查找表，所述第二查找表的第三输入端电性连接于第三查找表的第二输入端和第四查找表的第一输入端，输出端电性连接于第二D触发器的D端；
第二D触发器，所述第二D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的的第三输入端、第三查找表的第二输入端、及第四查找表的第一输入端；
第三查找表，所述第三查找表的输出端电性连接于第一输出缓冲器的输入端；
第一输出缓冲器，所述第一输出缓冲器的输出端输出第一输出信号；
第四查找表，所述第四查找表的输出端电性连接于第二输出缓冲器的输入端；
第二输出缓冲器，所述第二输出缓冲器的输出端输出第二输出信号；
其中，所述第一输出信号和第二输出信号的周期为扫描信号周期的二倍，占空比为1/4，且脉冲位置与对应的扫描信号的脉冲同步；
所述第二输出信号与第一输出信号的脉冲位置不相互重叠；
其中，所述第一输出信号与第二输出信号的其中一个作为充电扫描信号，另一个作为放电扫描信号。
本发明的有益效果：本发明提供的OLED栅极驱动电路架构，通过设于OLED面板一侧的一个栅极充放电驱动电路，配合与该所述栅极充放电驱动电路电性连接的逻辑处理单元，通过逻辑处理单元将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板，仅采用一个栅极驱动集成电路(即栅极充放电驱动电路)就能实现栅极驱动电路的充电 和放电过程，相比于现有技术，减少了一个栅极驱动集成电路，能够节省硬件成本，简化面板布线电路，并使面板边框变窄。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有技术的OLED栅极驱动电路架构；
图2为本发明的OLED栅极驱动电路架构；
图3为本发明的OLED栅极驱动电路架构中逻辑处理单元的电路图；
图4为图3所示电路的仿真波形图；
图5为图3所示逻辑处理单元中各缓冲器的电路图；
图6为图3所示逻辑处理单元中D触发器的电路图；
图7为图3所示逻辑处理单元中第二查找表的电路图；
图8为图3所示逻辑处理单元中第三查找表的电路图；
图9为图3所示逻辑处理单元中第四查找表的电路图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2，本发明提供一种OLED栅极驱动电路架构，包括：OLED面板、栅极充放电驱动电路、逻辑处理单元、及源极驱动电路；所述栅极充放电驱动电路设于OLED面板的一侧，所述栅极充放电驱动电路设有多个输出端，每一输出端通过一信号线与所述逻辑处理单元电性连接；所述逻辑处理单元设于所述OLED面板内，所述逻辑处理单元通过信号线接收栅极充放电驱动电路传来的扫描信号，并将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板；所述源极驱动电路与所述OLED面板相连，并向所述OLED面板提供数据信号。
具体的，所述栅极充放电驱动电路由一个栅极驱动IC构成，所述OLED显示面板包括多个阵列排布的像素驱动电路，每一像素驱动电路均包括一个电容和三个薄膜晶体管。进一步的，所述像素驱动电路包括一第一薄膜 晶体管、一第二薄膜晶体管、一第三薄膜晶体管、及一电容。其中，第一薄膜晶体管为充电薄膜晶体管，用于控制对有机发光二极管OLED的充电，将所述经由逻辑处理单元转换后的充电扫描信号提供给第一薄膜晶体管即可控制对所述OLED面板的充电；第二薄膜晶体管为驱动薄膜晶体管；第三薄膜晶体管为放电薄膜晶体管，将所述经由逻辑处理单元转换后的放电扫描信号提供给第三薄膜晶体管即可控制对所述OLED面板的放电。
请参阅图3，所述逻辑处理单元包括：第一输入缓冲器IBUF1，所述第一输入缓冲器IBUF1的输入端输入时钟信号PWM_CLK，输出端电性连接全局缓冲器BUFG的输入端；全局缓冲器BUFG，所述全局缓冲器BUFG的输出端电性连接第一D触发器FDCE1的C端与第二D触发器FDCE2的C端；第二输入缓冲器IBUF2，所述第二输入缓冲器IBUF2的输入端输入复位信号RST_n，输出端电性连接第一查找表LUT1的输入端；第一查找表LUT1，所述第一查找表LUT1的输出端电性连接第一D触发器FDCE1的CLR端与第二D触发器FDCE2的CLR端；第三输入缓冲器IBUF3，所述第三输入缓冲器IBUF3的输入端输入扫描信号Gate_in，输出端电性连接第一D触发器FDCE1的D端、第二查找表LUT2的第一输入端、第三查找表LUT3的第一输入端、及第四查找表LUT4的第二输入端；第一D触发器FDCE1，所述第一D触发器FDCE1的CE端电性连接一恒压高电位，Q端电性连接于第二查找表LUT2的第二输入端；第二查找表LUT2，所述第二查找表LUT2的第三输入端电性连接于第三查找表LUT3的第二输入端和第四查找表LUT4的第一输入端，输出端电性连接于第二D触发器FDCE2的D端；第二D触发器FDCE2，所述第二D触发器FDCE2的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的LUT2的第三输入端、第三查找表LUT3的第二输入端、及第四查找表LUT4的第一输入端；第三查找表LUT3，所述第三查找表LUT3的输出端电性连接于第一输出缓冲器OBUF1的输入端；第一输出缓冲器OBUF1，所述第一输出缓冲器OBUF1的输出端输出第一输出信号Gate_out1；第四查找表LUT4，所述第四查找表LUT4的输出端电性连接于第二输出缓冲器OBUF2的输入端；第二输出缓冲器OBUF2，所述第二输出缓冲器OBUF2的输出端输出第二输出信号Gate_out2。
进一步的，请参阅图4，所示逻辑处理单元输入时钟信号PWM_CLK、复位信号RST_n、及扫描信号Gate_in，按照设计时序相应输出第二输出信号Gate_out2与第一输出信号Gate_out1。经过上述逻辑处理模块的变换后 输出的第一输出信号Gate_out1和第二输出信号Gate_out2的周期为扫描信号Gate_in周期的二倍，占空比为1/4，且脉冲位置与对应的扫描信号Gate_in的脉冲同步；所述第二输出信号Gate_out2与第一输出信号Gate_out1的脉冲位置不相互重叠。其中，所述第一输出信号Gate_out1与第二输出信号Gate_out2的其中一个作为充电扫描信号，另一个作为放电扫描信号。
具体的，请参阅图5并结合图3，图3所示电路中包括第一输入缓冲器IBUF1、第二输入缓冲器IBUF2、第三输入缓冲器IBUF3、全局缓冲器BUFG、第一输出缓冲器OBUF1、及第二输出缓冲器OBUF2在内的各个缓冲器均为图5所示结构，如图5所示，该缓冲器包括：第一至第六三级管Q1-Q6、第一至第三二极管D1-D3、及第一至第五电阻R1-R5；
所述第一三级管Q1的基极电性连接于第一电阻R1的一端，发射极电性连接于第一二极管D1的负极，集电极电性连接于第二三极管Q2的基极；所述第二三级管Q2的发射极电性连接于第三电阻R3的一端和第三三极管Q3的基极，集电极电性连接于第二电阻R2的一端和第二二极管D2的正极；所述第三三极管Q3的发射极电性连接于第三电阻R3的另一端和第五电阻R5的一端，集电极电性连接于第二二极管D2的负极和第四三极管Q4的基极；所述第四三极管Q4的发射极电性连接于第五电阻R5的另一端和第六三极管Q6的基极，集电极电性连接于第四电阻R4的一端和第五三极管Q5的基极；所述第五三极管Q5的发射极电性连接于第三二极管D3的正极，集电极电性连接于第四电阻R4的另一端；所述第六三极管Q6的发射极电性连接于第五电阻R5的一端，集电极电性连接于第三二极管D3的负极；所述第一、第二、及第四电阻R1、R2、R4的另一端电性连接于电源电压VCC；所述第一二极管D1的正极电性连接于所述第三电阻R3的另一端；
所述第一二极管D1的负极与所述第一三极管Q1的发射极为输入端INPUT，所述第三二极管D3的负极和第六三极管Q6的集电极为输出端OUTPUT；
所述输入端INPUT的输入信号的电位与所述输出端OUTPUT的输出信号的电位相同。
特别的，可采用NMOS管取代图5所示的缓冲器中的第一至第六三极管Q1-Q6，该缓冲器具有如下特性，在输入端INPUT的输入信号为高电位时，输出端OUTPUT的输出信号为高电位，而输入端INPUT的输入信号为低电位时，输出端OUTPUT的输出信号为低电位。
具体的，请参阅图6并结合图3，图3所示电路中包括第一D触发器 FDCE1、及第二D触发器FDCE2在内的各D触发器均为图6所示结构，包括第一至第六与非门NADN1-NAND6；
所述第一与非门NAND1的第一输入端作为D触发器的CLR端，第二输入端电性连接于第三与非门NADN3的第一输入端，输出端电性连接于第二与非门NAND2的第一输入端；所述第二与非门NAND2的第二输入端与第三与非门NAND3的第二输入端电性连接共同作为D触发器的C端，第三输入端电性连接于第四与非门NAND4的第一输入端，输出端电性连接于第五与非门NAND5的第一输入端；所述第三与非门NAND3的第三输入端电性连接于第四与非门NAND4的输出端，输出端电性连接于第六与非门NAND6的第二输入端；所述第四与非门NAND4的第二输入端作为D触发器的D端；所述第五与非门NAND5的第二输入端电性连接于第六与非门NAND6的输出端；所述第六与非门NAND6的第一输入端电性连接于第五与非门的输出端并作为D触发器的Q端。
具体的，请参阅图7，所述第二查找表LUT2包括：第一、及第二反相器F1、F2和第一、及第二与门AND1、AND2；所述第一反相器F1的输入端作为第二查找表LUT2的第一输入端(即图7所示I0端)，输出端电性连接于第一与门AND1的第一输入端；所述第二反相器F2的输入端作为第二查找表LUT2的第三输入端(即图7所示I2端)，输出端电性连接于第二与门AND2的第二输入端；所述第一与门AND1的第二输入端作为第二查找表LUT2的第二输入端(即图7所述I1端)，输出端电性连接于第二与门AND2的第一输入端；所述第二与门AND2的输出端作为第二查找表LUT2的输出端。此时，该第二查找表LUT2仅在输入信号I0＝0，I1＝1，I2＝0时，输出信号为1，其余情况下的输出信号均为0。
请参阅图8，所述第三查找表LUT3包括：第三反相器F3和第三与门AND3；所述第三反相器F3的输入端作为所述第三查找表LUT3的第二输入端(即图8所示I1端)，输出端电性连接于第三与门AND3的第二输入端；所述第三与门AND3的第一输入端作为所述第三查找表LUT3的第一输入端(即图8所示I0端)，输出端作为所述第三查找表LUT3的输出端。此时，该第三查找表LUT3的仅在输入信号I0＝1，I1＝0时，输出信号为1，其余情况下的输出信号均为0。
请参阅图9，所述第四查找表LUT4包括第四与门AND4；所述第四与门AND4的第一输入端作为所述第四查找表LUT4的第一输入端(即图9中所示I0端)，第二输入端作为所述第四查找表LUT4的第二输入端(即图9中所示I1端)，输出端作为所述第四查找表LUT4的输出端。此时，该第 四查找表LUT4的仅在输入信号I0＝1，I1＝1时，输出信号为1，其余情况下的输出信号均为0。
综上所述，本发明提供的OLED栅极驱动电路架构，通过设于OLED面板一侧的一个栅极充放电驱动电路，配合与该所述栅极充放电驱动电路电性连接的逻辑处理单元，通过逻辑处理单元将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板，仅采用一个栅极驱动集成电路(即栅极充放电驱动电路)就能实现栅极驱动电路的充电和放电过程，相比于现有技术，减少了一个栅极驱动集成电路，能够节省硬件成本，简化面板布线电路，并使面板边框变窄。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (16)

  1. 一种OLED栅极驱动电路架构，包括：OLED面板、栅极充放电驱动电路、逻辑处理单元、及源极驱动电路；
    所述栅极充放电驱动电路设于OLED面板的一侧，所述栅极充放电驱动电路设有多个输出端，每一输出端通过一信号线与所述逻辑处理单元电性连接；
    所述逻辑处理单元设于所述OLED面板内，所述逻辑处理单元通过信号线接收栅极充放电驱动电路传来的扫描信号，并将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板；
    所述源极驱动电路与所述OLED面板相连，并向所述OLED面板提供数据信号。
  2. 如权利要求1所述的OLED栅极驱动电路架构，其中，所述OLED显示面板包括多个呈阵列排布的像素驱动电路，每一像素驱动电路均包括一个电容和三个薄膜晶体管。
  3. 如权利要求1所述的OLED栅极驱动电路架构，其中，所述逻辑处理单元包括：
    第一输入缓冲器，所述第一输入缓冲器的输入端输入时钟信号，输出端电性连接全局缓冲器的输入端；
    全局缓冲器，所述全局缓冲器的输出端电性连接第一D触发器的C端与第二D触发器的C端；
    第二输入缓冲器，所述第二输入缓冲器的输入端输入复位信号，输出端电性连接第一查找表的输入端；
    第一查找表，所述第一查找表的输出端电性连接第一D触发器的CLR端与第二D触发器的CLR端；
    第三输入缓冲器，所述第三输入缓冲器的输入端输入扫描信号，输出端电性连接第一D触发器的D端、第二查找表的第一输入端、第三查找表的第一输入端、及第四查找表的第二输入端；
    第一D触发器，所述第一D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的第二输入端；
    第二查找表，所述第二查找表的第三输入端电性连接于第三查找表的第二输入端和第四查找表的第一输入端，输出端电性连接于第二D触发器的D端；
    第二D触发器，所述第二D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的的第三输入端、第三查找表的第二输入端、及第四查找表的第一输入端；
    第三查找表，所述第三查找表的输出端电性连接于第一输出缓冲器的输入端；
    第一输出缓冲器，所述第一输出缓冲器的输出端输出第一输出信号；
    第四查找表，所述第四查找表的输出端电性连接于第二输出缓冲器的输入端；
    第二输出缓冲器，所述第二输出缓冲器的输出端输出第二输出信号。
  4. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第一输出信号和第二输出信号的周期为扫描信号周期的二倍，占空比为1/4，且脉冲位置与对应的扫描信号的脉冲同步；
    所述第二输出信号与第一输出信号的脉冲位置不相互重叠。
  5. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第一输出信号与第二输出信号的其中一个作为充电扫描信号，另一个作为放电扫描信号。
  6. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第一输入缓冲器、第二输入缓冲器、第三输入缓冲器、全局缓冲器、第一输出缓冲器、及第二输出缓冲器均包括：第一至第六三级管、第一至第三二极管、及第一至第五电阻；
    所述第一三级管的基极电性连接于第一电阻的一端，发射极电性连接于第一二极管的负极，集电极电性连接于第二三极管的基极；所述第二三级管的发射极电性连接于第三电阻的一端和第三三极管的基极，集电极电性连接于第二电阻的一端和第二二极管的正极；所述第三三极管的发射极电性连接于第三电阻的另一端和第五电阻的一端，集电极电性连接于第二二极管的负极和第四三极管的基极；所述第四三极管的发射极电性连接于第五电阻的另一端和第六三极管的基极，集电极电性连接于第四电阻的一端和第五三极管的基极；所述第五三极管的发射极电性连接于第三二极管的正极，集电极电性连接于第四电阻的另一端；所述第六三极管的发射极电性连接于第五电阻的一端，集电极电性连接于第三二极管的负极；所述第一、第二、第四电阻的另一端电性连接于电源电压；所述第一二极管的正极电性连接于所述第三电阻的另一端；
    所述第一二极管的负极与所述第一三极管的发射极为输入端，所述第三二极管的负极和第六三极管的集电极为输出端；
    所述输入端的输入信号的电位与所述输出端的输出信号的电位相同。
  7. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第一D触发器、及第二D触发器均包括第一至第六与非门；
    所述第一与非门的第一输入端作为D触发器的CLR端，第二输入端电性连接于第三与非门的第一输入端，输出端电性连接于第二与非门的第一输入端；所述第二与非门的第二输入端与第三与非门的第二输入端电性连接共同作为D触发器的C端，第三输入端电性连接于第四与非门的第一输入端，输出端电性连接于第五与非门的第一输入端；所述第三与非门的第三输入端电性连接于第四与非门的输出端，输出端电性连接于第六与非门的第二输入端；所述第四与非门的第二输入端作为D触发器的D端；所述第五与非门的第二输入端电性连接于第六与非门的输出端；所述第六与非门的第一输入端电性连接于第五与非门的输出端并作为D触发器的Q端。
  8. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第二查找表包括：第一、及第二反相器和第一、及第二与门；
    所述第一反相器的输入端作为第二查找表的第一输入端，输出端电性连接于第一与门的第一输入端；所述第二反相器的输入端作为第二查找表的第三输入端，输出端电性连接于第二与门的第二输入端；所述第一与门的第二输入端作为第二查找表的第二输入端，输出端电性连接于第二与门的第一输入端；所述第二与门的输出端作为第二查找表的输出端。
  9. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第三查找表包括：第三反相器和第三与门；
    所述第三反相器的输入端作为所述第三查找表的第二输入端，输出端电性连接于第三与门的第二输入端；所述第三与门的第一输入端作为所述第三查找表的第一输入端，输出端作为所述第三查找表的输出端。
  10. 如权利要求3所述的OLED栅极驱动电路架构，其中，所述第四查找表包括第四与门；
    所述第四与门的第一输入端作为所述第四查找表的第一输入端，第二输入端作为所述第四查找表的第二输入端，输出端作为所述第四查找表的输出端。
  11. 一种OLED栅极驱动电路架构，包括：OLED面板、栅极充放电驱动电路、逻辑处理单元、及源极驱动电路；
    所述栅极充放电驱动电路设于OLED面板的一侧，所述栅极充放电驱动电路设有多个输出端，每一输出端通过一信号线与所述逻辑处理单元电性连接；
    所述逻辑处理单元设于所述OLED面板内，所述逻辑处理单元通过信号线接收栅极充放电驱动电路传来的扫描信号，并将所述扫描信号转换为放电扫描信号和充电扫描信号提供给OLED显示面板；
    所述源极驱动电路与所述OLED面板相连，并向所述OLED面板提供数据信号；
    其中，所述OLED显示面板包括多个呈阵列排布的像素驱动电路，每一像素驱动电路均包括一个电容和三个薄膜晶体管；
    其中，所述逻辑处理单元包括：
    第一输入缓冲器，所述第一输入缓冲器的输入端输入时钟信号，输出端电性连接全局缓冲器的输入端；
    全局缓冲器，所述全局缓冲器的输出端电性连接第一D触发器的C端与第二D触发器的C端；
    第二输入缓冲器，所述第二输入缓冲器的输入端输入复位信号，输出端电性连接第一查找表的输入端；
    第一查找表，所述第一查找表的输出端电性连接第一D触发器的CLR端与第二D触发器的CLR端；
    第三输入缓冲器，所述第三输入缓冲器的输入端输入扫描信号，输出端电性连接第一D触发器的D端、第二查找表的第一输入端、第三查找表的第一输入端、及第四查找表的第二输入端；
    第一D触发器，所述第一D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的第二输入端；
    第二查找表，所述第二查找表的第三输入端电性连接于第三查找表的第二输入端和第四查找表的第一输入端，输出端电性连接于第二D触发器的D端；
    第二D触发器，所述第二D触发器的CE端电性连接一恒压高电位，Q端电性连接于第二查找表的的第三输入端、第三查找表的第二输入端、及第四查找表的第一输入端；
    第三查找表，所述第三查找表的输出端电性连接于第一输出缓冲器的输入端；
    第一输出缓冲器，所述第一输出缓冲器的输出端输出第一输出信号；
    第四查找表，所述第四查找表的输出端电性连接于第二输出缓冲器的输入端；
    第二输出缓冲器，所述第二输出缓冲器的输出端输出第二输出信号；
    其中，所述第一输出信号和第二输出信号的周期为扫描信号周期的二 倍，占空比为1/4，且脉冲位置与对应的扫描信号的脉冲同步；
    所述第二输出信号与第一输出信号的脉冲位置不相互重叠；
    其中，所述第一输出信号与第二输出信号的其中一个作为充电扫描信号，另一个作为放电扫描信号。
  12. 如权利要求11所述的OLED栅极驱动电路架构，其中，所述第一输入缓冲器、第二输入缓冲器、第三输入缓冲器、全局缓冲器、第一输出缓冲器、及第二输出缓冲器均包括：第一至第六三级管、第一至第三二极管、及第一至第五电阻；
    所述第一三级管的基极电性连接于第一电阻的一端，发射极电性连接于第一二极管的负极，集电极电性连接于第二三极管的基极；所述第二三级管的发射极电性连接于第三电阻的一端和第三三极管的基极，集电极电性连接于第二电阻的一端和第二二极管的正极；所述第三三极管的发射极电性连接于第三电阻的另一端和第五电阻的一端，集电极电性连接于第二二极管的负极和第四三极管的基极；所述第四三极管的发射极电性连接于第五电阻的另一端和第六三极管的基极，集电极电性连接于第四电阻的一端和第五三极管的基极；所述第五三极管的发射极电性连接于第三二极管的正极，集电极电性连接于第四电阻的另一端；所述第六三极管的发射极电性连接于第五电阻的一端，集电极电性连接于第三二极管的负极；所述第一、第二、第四电阻的另一端电性连接于电源电压；所述第一二极管的正极电性连接于所述第三电阻的另一端；
    所述第一二极管的负极与所述第一三极管的发射极为输入端，所述第三二极管的负极和第六三极管的集电极为输出端；
    所述输入端的输入信号的电位与所述输出端的输出信号的电位相同。
  13. 如权利要求11所述的OLED栅极驱动电路架构，其中，所述第一D触发器、及第二D触发器均包括第一至第六与非门；
    所述第一与非门的第一输入端作为D触发器的CLR端，第二输入端电性连接于第三与非门的第一输入端，输出端电性连接于第二与非门的第一输入端；所述第二与非门的第二输入端与第三与非门的第二输入端电性连接共同作为D触发器的C端，第三输入端电性连接于第四与非门的第一输入端，输出端电性连接于第五与非门的第一输入端；所述第三与非门的第三输入端电性连接于第四与非门的输出端，输出端电性连接于第六与非门的第二输入端；所述第四与非门的第二输入端作为D触发器的D端；所述第五与非门的第二输入端电性连接于第六与非门的输出端；所述第六与非门的第一输入端电性连接于第五与非门的输出端并作为D触发器的Q端。
  14. 如权利要求11所述的OLED栅极驱动电路架构，其中，所述第二查找表包括：第一、及第二反相器和第一、及第二与门；
    所述第一反相器的输入端作为第二查找表的第一输入端，输出端电性连接于第一与门的第一输入端；所述第二反相器的输入端作为第二查找表的第三输入端，输出端电性连接于第二与门的第二输入端；所述第一与门的第二输入端作为第二查找表的第二输入端，输出端电性连接于第二与门的第一输入端；所述第二与门的输出端作为第二查找表的输出端。
  15. 如权利要求11所述的OLED栅极驱动电路架构，其中，所述第三查找表包括：第三反相器和第三与门；
    所述第三反相器的输入端作为所述第三查找表的第二输入端，输出端电性连接于第三与门的第二输入端；所述第三与门的第一输入端作为所述第三查找表的第一输入端，输出端作为所述第三查找表的输出端。
  16. 如权利要求11所述的OLED栅极驱动电路架构，其中，所述第四查找表包括第四与门；
    所述第四与门的第一输入端作为所述第四查找表的第一输入端，第二输入端作为所述第四查找表的第二输入端，输出端作为所述第四查找表的输出端。
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