WO2024239228A1 - 驱动电路、驱动方法、驱动模组和显示装置 - Google Patents
驱动电路、驱动方法、驱动模组和显示装置 Download PDFInfo
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- WO2024239228A1 WO2024239228A1 PCT/CN2023/095760 CN2023095760W WO2024239228A1 WO 2024239228 A1 WO2024239228 A1 WO 2024239228A1 CN 2023095760 W CN2023095760 W CN 2023095760W WO 2024239228 A1 WO2024239228 A1 WO 2024239228A1
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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]
- G09G3/3225—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
-
- 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]
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Definitions
- the present disclosure relates to the field of display technology, and in particular to a driving circuit, a driving method, a driving module and a display device.
- the AOD display screen is a screen that controls the partial lighting of the screen without lighting the entire mobile phone screen
- static screens or seldom updated screens most of the pixel circuits on the entire screen do not need to update the pixel voltage, that is, most of the pixel circuits can be maintained at the original display brightness through low-leakage LTPO (low-temperature polycrystalline oxide) TFT (thin-film transistor), and the repeated rewriting of these pixel circuits causes a waste of power consumption.
- LTPO low-temperature polycrystalline oxide
- TFT thin-film transistor
- an embodiment of the present disclosure provides a driving circuit, including a driving signal generating circuit, a gating circuit, an output control circuit, and an output circuit;
- the driving signal generating circuit is electrically connected to the N-1th driving signal output terminal and the Nth driving signal output terminal respectively, and is used to perform a shift operation on the N-1th driving signal provided by the N-1th driving signal output terminal, and obtain and output the Nth driving signal through the Nth driving signal output terminal;
- the gating circuit is electrically connected to the first node, the gating input terminal and the gating control terminal respectively, and is used for controlling the gating input signal provided by the gating input terminal to be written into the first node under the control of the gating control signal provided by the gating control terminal;
- the first end of the output control circuit is electrically connected to the N-th level drive signal output end, and the second end of the output control circuit is electrically connected to the first node, and is used to perform a negative AND operation on the N-th level drive signal and the potential of the second end of the output control circuit to obtain a first output signal;
- the output circuit is used to invert the first output signal to obtain an output drive signal and provide it through the output drive terminal;
- N is a positive integer.
- the gating circuit is used to control the writing of the gating input signal provided by the gating input terminal into the first node when the potential of the N-1th level driving signal is the first voltage and the potential of the Nth level driving signal is the second voltage.
- the gating circuit includes a first transistor; the gate of the first transistor is electrically connected to the gating control terminal, the first electrode of the first transistor is electrically connected to the first node, and the second electrode of the first transistor is electrically connected to the gating input terminal.
- the gating control terminal includes a first gating control terminal and a second gating control terminal;
- the gating circuit includes a first transistor and a second transistor;
- the gate of the first transistor is electrically connected to the first selection control terminal, the first electrode of the first transistor is electrically connected to the first node, and the second electrode of the first transistor is electrically connected to the first electrode of the second transistor;
- the gate of the second transistor is electrically connected to the second gate control terminal, and the second electrode of the second transistor is electrically connected to the gate input terminal;
- the first gating control terminal is an N-1th level driving signal output terminal
- the second gating control terminal is an Nth level driving signal output terminal
- the first transistor is an n-type transistor
- the second transistor is a p-type transistor
- the first gating control terminal is an N-th level driving signal output terminal
- the second gating control terminal is an N-1-th level driving signal output terminal
- the first transistor is a p-type transistor
- the second transistor is an n-type transistor
- the first gating control terminal is connected to the inverted signal of the N-1th level driving signal
- the second gating control terminal is the output terminal of the Nth level driving signal
- the first transistor and the second transistor are both p-type transistors
- the first gating control terminal is an output terminal of the Nth level driving signal, and the second gating control terminal is connected to the inverted signal of the N-1th level driving signal; the first transistor and the second transistor are both p-type transistors; or,
- the first gating control terminal is the N-1th level driving signal terminal
- the second gating control terminal is connected to the inverted signal of the Nth level driving signal
- the first transistor and the second transistor are both n-type transistors
- the first gating control terminal is connected to the inverted signal of the Nth level driving signal
- the second gating control terminal is the N-1th level driving signal terminal
- the first transistor and the second transistor are both n-type transistors.
- the driving circuit described in at least one embodiment of the present disclosure further includes a first initialization circuit
- the first initialization circuit is electrically connected to the initial control terminal, the first voltage terminal and the first node respectively, and is used to control the connection between the first node and the first voltage terminal under the control of the initial control signal provided by the initial control terminal.
- the driving circuit described in at least one embodiment of the present disclosure further includes a first voltage maintaining circuit
- the first end of the first voltage maintaining circuit is electrically connected to the first node
- the second end of the first voltage maintaining circuit is electrically connected to a DC voltage end or a second node
- the first voltage maintaining circuit is used to maintain the potential of the first node.
- the driving circuit described in at least one embodiment of the present disclosure further includes a second voltage maintaining circuit, and the first node is electrically connected to the second end of the output control circuit through the second voltage maintaining circuit;
- the second voltage maintaining circuit includes a first inverter, a second inverter and a maintaining control circuit
- the input terminal of the first inverter is electrically connected to the first node, the output terminal of the first inverter is electrically connected to the second node, the input terminal of the second inverter is electrically connected to the second node, and the output terminal of the second inverter is electrically connected to a third node and the second terminal of the output control circuit;
- the first inverter is used to invert the potential of the first node and output the inverted potential of the first node through the output terminal of the first inverter
- the second inverter is used to invert the potential of its input terminal and output the inverted potential through the output terminal of the second inverter
- the sustain control circuit is electrically connected to the sustain control terminal, the third node and the first node respectively, and is used to control the connection or disconnection between the third node and the first node under the control of a sustain control signal provided by the sustain control terminal.
- the maintenance control end includes a first maintenance control end and a second maintenance control end;
- the sustain control circuit includes a third transistor and a fourth transistor
- the gate of the third transistor is electrically connected to the first sustain control terminal, the first electrode of the third transistor is electrically connected to the first node, and the second electrode of the third transistor is electrically connected to the third node;
- the gate of the fourth transistor is electrically connected to the second sustain control terminal, the first electrode of the fourth transistor is electrically connected to the third node, and the second electrode of the fourth transistor is electrically connected to the first node;
- the third transistor is a p-type transistor, and the fourth transistor is an n-type transistor;
- the first sustain control terminal is the N-1th level driving signal terminal, and the second sustain control terminal is the first clock signal terminal; or,
- the first sustain control terminal is a second clock signal terminal
- the second sustain control terminal is a first clock signal terminal
- the first inverter includes a fifth transistor and a sixth transistor
- the second inverter includes a seventh transistor and an eighth transistor
- the gate of the fifth transistor is electrically connected to the first node, the first electrode of the fifth transistor is electrically connected to the first voltage terminal, and the second electrode of the fifth transistor is electrically connected to the second node;
- the gate of the sixth transistor is electrically connected to the first node, the first electrode of the sixth transistor is electrically connected to the second node, and the second electrode of the sixth transistor is electrically connected to the second voltage terminal;
- the fifth transistor is a p-type transistor, and the sixth transistor is an n-type transistor;
- the gate of the seventh transistor is electrically connected to the second node, the first electrode of the seventh transistor is electrically connected to the first voltage terminal, and the second electrode of the seventh transistor is electrically connected to the third node;
- the gate of the eighth transistor is electrically connected to the second node, the first electrode of the eighth transistor is electrically connected to the third node, and the second electrode of the eighth transistor is electrically connected to the second voltage terminal;
- the seventh transistor is a p-type transistor
- the eighth transistor is an n-type transistor.
- the first initialization circuit includes a ninth transistor, and the first voltage maintaining circuit includes a first capacitor;
- the gate of the ninth transistor is electrically connected to the initial control terminal, the first electrode of the ninth transistor is electrically connected to the first voltage terminal, and the second electrode of the ninth transistor is electrically connected to the first node;
- the first end of the first capacitor is electrically connected to the first node, and the second end of the first capacitor is electrically connected to the DC voltage end or the second node.
- the gate of the tenth transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the tenth transistor is electrically connected to the first voltage terminal, and the second electrode of the tenth transistor is electrically connected to the fourth node;
- the gate of the fourteenth transistor is electrically connected to the fourth node, the first electrode of the fourteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the fourteenth transistor is electrically connected to the output driving terminal;
- the gate of the sixteenth transistor is electrically connected to the second clock signal terminal, the first electrode of the sixteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the sixteenth transistor is electrically connected to the first electrode of the seventeenth transistor;
- the sixteenth transistor and the seventeenth transistor are p-type transistors, and the eighteenth transistor and the nineteenth transistor are n-type transistors.
- the second control circuit includes a twentieth transistor, a twenty-first transistor, a twenty-second transistor and a twenty-third transistor;
- a gate of the 20th transistor is electrically connected to the first clock signal terminal, a first electrode of the 20th transistor is electrically connected to the first voltage terminal, and a second electrode of the 20th transistor is electrically connected to a first electrode of the 21st transistor;
- a gate of the twenty-first transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the twenty-first transistor is electrically connected to the sixth node;
- the 20th transistor and the 21st transistor are p-type transistors, and the 22nd transistor and the 23rd transistor are n-type transistors.
- the third inverter includes a twenty-fourth transistor and a twenty-fifth transistor; the second initialization circuit includes a twenty-sixth transistor;
- a gate of the twenty-fourth transistor is electrically connected to the sixth node, a first electrode of the twenty-fourth transistor is electrically connected to the first voltage terminal, and a second electrode of the twenty-fourth transistor is electrically connected to a first electrode of the twenty-fifth transistor;
- a gate of the twenty-fifth transistor is electrically connected to the sixth node, and a second electrode of the twenty-fifth transistor is electrically connected to the second voltage terminal;
- the twenty-fourth transistor is a p-type transistor, and the twenty-fifth transistor is an n-type transistor;
- a gate of the twenty-sixth transistor is electrically connected to the initial control terminal, a first electrode of the twenty-sixth transistor is electrically connected to the first voltage terminal, and a second electrode of the twenty-sixth transistor is electrically connected to the Nth stage driving signal output terminal.
- an embodiment of the present disclosure provides a driving method, which is applied to the above-mentioned driving circuit, and the driving method includes:
- the driving signal generating circuit performs a shift operation on the N-1th level driving signal to obtain and output the Nth level driving signal through the Nth level driving signal output terminal;
- the gating circuit controls, under the control of the gating control signal, to write the gating input signal provided by the gating input terminal into the first node;
- the output control circuit performs a NAND operation on the Nth stage driving signal and the potential of the second end of the output control circuit to obtain a first output signal
- the output circuit is used to invert the first output signal to obtain and provide an output drive signal through the output drive terminal.
- an embodiment of the present disclosure provides a driving module, comprising a plurality of stages of the above-mentioned driving circuits;
- the Nth stage driving circuit is electrically connected to the driving signal output terminal included in the N-1th stage driving circuit; N is a positive integer.
- an embodiment of the present disclosure provides a display device, comprising the above-mentioned driving module.
- FIG1 is a structural diagram of a driving circuit according to an embodiment of the present disclosure.
- FIG2 is a circuit diagram of a related pixel circuit
- FIG3 is a working timing diagram of the related pixel circuit shown in FIG2 ;
- FIG4 is a circuit diagram of a related pixel circuit
- FIG. 5 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG. 6 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG. 7 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG. 8 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG. 9 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure.
- FIG. 10 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG. 11 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG. 12 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present disclosure
- FIG13 is a circuit diagram of at least one embodiment of an inverter
- FIG14 is a circuit diagram of at least one embodiment of an inverter
- FIG15 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG16 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG17 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG18 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG19 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG20 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG21 is a structural diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG22 is a circuit diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG23 is a circuit diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG24 is a timing diagram of operation of at least one embodiment of the driving circuit shown in FIG23;
- FIG25 is a circuit diagram of a driving circuit according to at least one embodiment of the present disclosure.
- FIG26 is a structural diagram of a driving module according to at least one embodiment of the present disclosure.
- the transistors used in all embodiments of the present disclosure may be thin film transistors or field effect transistors or other devices with the same characteristics.
- one of the electrodes is called the first electrode and the other is called the second electrode.
- the first electrode when the transistor is a thin film transistor or a field effect transistor, the first electrode may be a drain electrode, and the second electrode may be a source electrode; or, the first electrode may be a source electrode, and the second electrode may be a drain electrode.
- the driving circuit includes a driving signal generating circuit 10 , a gating circuit 11 , an output control circuit 12 and an output circuit 13 ;
- the driving signal generating circuit 10 is electrically connected to the N-1-th driving signal output terminal NS(N-1) and the N-th driving signal output terminal NS(N), respectively, and is used to perform a shift operation on the N-1-th driving signal provided by the N-1-th driving signal output terminal NS(N-1), and obtain and output the N-th driving signal through the N-th driving signal output terminal NS(N);
- the gating circuit 11 is electrically connected to the first node N1, the gating input terminal VCT and the gating control terminal CX respectively, and is used to control the gating input signal provided by the gating input terminal VCT to be written into the first node N1 under the control of the gating control signal provided by the gating control terminal CX;
- the first end of the output control circuit 12 is electrically connected to the N-th level drive signal output terminal NS(N), and the second end of the output control circuit 12 is electrically connected to the first node N1, for performing a negative AND operation on the N-th level drive signal and the potential of the second end of the output control circuit to obtain a first output signal;
- the output circuit 13 is electrically connected to the output control circuit 12 and the output drive terminal NO(N) respectively, and is used to invert the first output signal, obtain and provide an output drive signal through the output drive terminal NO(N);
- N is a positive integer.
- the driving signal generating circuit 10 shifts the N-1th level driving signal provided by the N-1th level driving signal output terminal NS(N-1) Operation is performed to obtain and output the Nth level driving signal through the Nth level driving signal output terminal NS(N), and the selection circuit 11 writes the selection input signal into the first node N1 under the control of the selection control signal; the output control circuit 12 performs an AND-NOT operation on the Nth level driving signal and the potential of the second end of the output control circuit 12 to obtain the first output signal, and the output circuit 13 inverts the first output signal to obtain and provide the output driving signal through the output driving terminal NO(N).
- the embodiment of the driving circuit shown in FIG. 1 of the present disclosure may be an N-th stage driving circuit.
- the gating circuit 11 Before the Nth stage driving signal providing stage, the gating circuit 11 writes the gating input signal provided by the gating input terminal VCT into the first node N1 under the control of the gating control signal;
- the Nth level drive signal output terminal NS (N) When the selection input signal is a high voltage signal, in the Nth level drive signal providing stage, the Nth level drive signal output terminal NS (N) outputs a high voltage signal, then the first output signal output by the output control circuit 12 is a low voltage signal, and the output circuit 13 provides a high voltage signal through the output drive terminal NO (N), which can control the corresponding row pixel circuit to update the pixel voltage;
- the Nth level drive signal output terminal NS (N) When the selection input signal is a low voltage signal, in the Nth level drive signal providing stage, the Nth level drive signal output terminal NS (N) outputs a high voltage signal, then the first output signal output by the output control circuit 12 is a high voltage signal, and the output circuit 13 provides a low voltage signal through the output drive terminal NO (N), which can control the corresponding row pixel circuit not to update the pixel voltage.
- the disclosed embodiment can realize the update of a partial picture of the display screen by controlling the selection input signal provided by the selection input terminal VCT, thereby reducing power consumption, or realize ultra-low power consumption of OLED display products such as wearable products, mobile terminals, NB (notebook computers) by partial update of the display picture.
- the related pixel circuit may include a first display control transistor M1, a second display control transistor M2, a driving transistor M3, a fourth display control transistor M4, a fifth display control transistor M5, a sixth display control transistor M6, a seventh display control transistor M7, a storage capacitor Cst and an organic light emitting diode O1;
- the gate of M1 is electrically connected to the first reset terminal NR(N), the source of M1 is electrically connected to the initial voltage terminal I1, and the drain of M1 is electrically connected to the gate of M3;
- the gate of M2 is electrically connected to the first scanning terminal NG(N), the source of M2 is electrically connected to the gate of M3, and the drain of M2 is electrically connected to the drain of M3;
- the gate of M4 is electrically connected to the second scanning terminal PG(N), and the source of M4 is electrically connected to the data line D1. Then, the drain of M4 is electrically connected to the source of M3;
- the gate of M5 is electrically connected to the light emitting control terminal E(N), the source of M5 is electrically connected to the power supply voltage terminal ELVDD, and the drain of M5 is electrically connected to the source of M3;
- the gate of M6 is electrically connected to the light emitting control terminal E(N), the source of M6 is electrically connected to the drain of M3, the drain of M6 is electrically connected to the anode of O1; the cathode of O1 is electrically connected to the low level terminal ELVSS;
- the gate of M7 is electrically connected to the second scanning terminal PG(N), the source of M7 is electrically connected to the initial voltage terminal I1, and the drain of M7 is electrically connected to the anode of O1.
- the first reset terminal NR(N) may be the N-1th stage first scan terminal NG(N), but is not limited thereto.
- M1 and M2 are n-type transistors
- M3, M4, M5, M6 and M7 are all p-type transistors
- M1 and M2 are IGZO TFTs with small leakage current
- M3, M4, M5, M6 and M7 are all LTPS TFTs.
- M1 and M2 are IGZO TFTs.
- IGZO TFT can ensure that Cst can maintain the gate voltage of M3 for a longer time.
- the second scanning terminal PG (N) is responsible for resetting the voltage of the anode of O1 and writing the data voltage on the data line into the source of the driving transistor
- the first scanning terminal NG (N) is responsible for resetting Cst, extracting Vth (Vth is the threshold voltage of the driving transistor) and writing the data voltage into the gate of the driving transistor.
- the first scanning signal provided by the first scanning terminal NG(N) and the second scanning signal provided by the second scanning terminal PG(N) may be in opposite phases to each other, but the present invention is not limited thereto.
- the driving circuit described in at least one embodiment of the present disclosure may provide the first scanning signal to the first scanning terminal NG(N) via the output driving terminal NO(N), but the present invention is not limited thereto.
- the display cycle may include a first display control stage t1 , a second display control stage t2 and a third display control stage t3 which are successively arranged;
- E(N) outputs a high voltage signal
- NR(N) provides a high voltage signal
- PG(N) provides a high voltage signal
- NG(N) provides a low voltage signal
- M5 and M6 are turned off, M1 is turned on, and the potential of the gate of M3 is pulled down to the initial voltage Vinit; the initial voltage terminal I1 is used to provide the initial voltage Vinit;
- E(N) outputs a high voltage signal
- NR(N) provides a low voltage signal
- PG(N) provides a low voltage signal
- NG(N) provides a high voltage signal
- M5 and M6 are turned off, M1 is turned off, M2 is turned on, M4 is turned on, M2 and M3 form a diode structure
- the data voltage Vdata provided by the data line D1 charges Cst until M3 is turned off, at which time the gate voltage of M3 is Vdata+Vth, and Vth is the threshold voltage of M3
- M7 is turned on to reset the anode voltage of O1;
- E(N) outputs a low voltage signal
- NR(N) provides a low voltage signal
- PG(N) provides a high voltage signal
- NG(N) provides a low voltage signal
- M5 and M6 are turned on, M3 drives O1 to emit light; O1 emits light according to the voltage setting of Vdata.
- NG(N) can control whether the data voltage Vdata (the data voltage Vdata can be the pixel voltage) is written into the gate of M3 in the second display control stage.
- FIG. 4 is a circuit diagram of a related pixel circuit.
- the related pixel circuit may include a first display control transistor M1, a second display control transistor M2, a driving transistor M3, a fourth display control transistor M4, a fifth display control transistor M5, a sixth display control transistor M6, a seventh display control transistor M7, a storage capacitor Cst and an organic light emitting diode O1;
- the gate of M1 is electrically connected to the third reset terminal RST1, the source of M1 is electrically connected to the initial voltage terminal I1, and the drain of M1 is electrically connected to the drain of M3;
- the gate of M2 is electrically connected to the first scanning terminal NG(N), the source of M2 is electrically connected to the gate of M3, and the drain of M2 is electrically connected to the drain of M3;
- the gate of M4 is electrically connected to the second scanning terminal PG(N), the source of M4 is electrically connected to the data line D1, and the drain of M4 is electrically connected to the source of M3;
- the gate of M5 is electrically connected to the light emitting control terminal E(N), the source of M5 is electrically connected to the power supply voltage terminal ELVDD, and the drain of M5 is electrically connected to the source of M3;
- the gate of M6 is electrically connected to the light emitting control terminal E(N), the source of M6 is electrically connected to the drain of M3, the drain of M6 is electrically connected to the anode of O1; the cathode of O1 is electrically connected to the low level terminal ELVSS;
- the gate of M7 is electrically connected to the fourth reset terminal RST2 , the source of M7 is electrically connected to the initial voltage terminal I1 , and the drain of M7 is electrically connected to the anode of O1 .
- NG(N) can control whether the data voltage Vdata on the data line D1 is written into the gate of the driving transistor M3.
- the first scanning signal provided by NG(N) can be used to control the opening or closing of the second transistor to control whether the data voltage on the data line is written into the gate of the driving transistor, thereby controlling whether the brightness of the pixel circuit of this row is updated; when NG(N) outputs a high voltage signal, the second transistor is turned on, and the brightness of the pixel circuit of this row can be updated; when NG(N) outputs a low voltage signal, the second transistor is always turned off, and the change of the data voltage on the data line will not be written into the gate of the driving transistor, and the luminous brightness of the organic light emitting diode will not change, that is, the display brightness of the pixel circuit of the current row in the current frame remains unchanged.
- the pixel brightness can be refreshed by controlling the opening or closing of the N-type transistor. Therefore, when you want to achieve non-refresh of some pixels, just ensure that the N-type transistor is turned off.
- the gating circuit is used to control the writing of the gating input signal provided by the gating input terminal into the first node when the potential of the N-1th level driving signal is the first voltage and the potential of the Nth level driving signal is the second voltage.
- the gating circuit may write the gating input signal into the first node when the potential of the N-1th level driving signal is the first voltage and the potential of the Nth level driving signal is the second voltage.
- the first voltage may be a high voltage
- the second voltage may be a low voltage
- the present invention is not limited thereto.
- the first voltage may also be a low voltage
- the second voltage may be a high voltage
- the gating circuit includes a first transistor; the gate of the first transistor is electrically connected to the gating control terminal, the first electrode of the first transistor is electrically connected to the first node, and the second electrode of the first transistor is electrically connected to the gating input terminal.
- the gating circuit may include a first transistor T1;
- the gate of the first transistor T1 is electrically connected to the gate control terminal S0, the drain of the first transistor T1 is electrically connected to the first node N1, and the source of the first transistor T1 is electrically connected to the gate input terminal VCT;
- T1 is a p-type transistor.
- the gating circuit may include a first transistor T1;
- the gate of the first transistor T1 is electrically connected to the gate control terminal S0.
- the source of the transistor T1 is electrically connected to the first node N1, and the drain of the first transistor T1 is electrically connected to the gate input terminal VCT;
- T1 is an n-type transistor.
- the gating control terminal includes a first gating control terminal and a second gating control terminal;
- the gating circuit includes a first transistor and a second transistor;
- the gate of the first transistor is electrically connected to the first selection control terminal, the first electrode of the first transistor is electrically connected to the first node, and the second electrode of the first transistor is electrically connected to the first electrode of the second transistor;
- the gate of the second transistor is electrically connected to the second gate control terminal, and the second electrode of the second transistor is electrically connected to the gate input terminal;
- the first gating control terminal is an N-1th level driving signal output terminal
- the second gating control terminal is an Nth level driving signal output terminal
- the first transistor is an n-type transistor
- the second transistor is a p-type transistor
- the first gating control terminal is an N-th level driving signal output terminal
- the second gating control terminal is an N-1-th level driving signal output terminal
- the first transistor is a p-type transistor
- the second transistor is an n-type transistor
- the first gating control terminal is connected to the inverted signal of the N-1th level driving signal
- the second gating control terminal is the output terminal of the Nth level driving signal
- the first transistor and the second transistor are both p-type transistors
- the first gating control terminal is an output terminal of the Nth level driving signal, and the second gating control terminal is connected to the inverted signal of the N-1th level driving signal; the first transistor and the second transistor are both p-type transistors; or,
- the first gating control terminal is the N-1th level driving signal terminal
- the second gating control terminal is connected to the inverted signal of the Nth level driving signal
- the first transistor and the second transistor are both n-type transistors
- the first gating control terminal is connected to the inverted signal of the Nth level driving signal
- the second gating control terminal is the N-1th level driving signal terminal
- the first transistor and the second transistor are both n-type transistors.
- the gating circuit may include a first transistor T1 and a second transistor T2 ;
- the gate of the first transistor T1 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the source of the first transistor T1 is electrically connected to the first node N1, and the drain of the first transistor T1 is electrically connected to the drain of the second transistor T2;
- the gate of the second transistor T2 is electrically connected to the Nth stage driving signal output terminal NS(N), and the source of the second transistor T2 is electrically connected to the gate input terminal VCT;
- T1 is an n-type transistor and T2 is a p-type transistor.
- the gating circuit may include a first transistor T1 and a second transistor T2;
- the gate of the first transistor T1 is electrically connected to the Nth stage driving signal output terminal NS(N), the drain of the first transistor T1 is electrically connected to the first node N1, and the source of the first transistor T1 is electrically connected to the source of the second transistor T2;
- the gate of the second transistor T2 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the drain of the second transistor T2 is electrically connected to the gate input terminal VCT;
- T1 is a p-type transistor and T2 is an n-type transistor.
- the gating circuit may include a first transistor T1 and a second transistor T2;
- the gate of the first transistor T1 is electrically connected to the first inverted driving signal terminal NGI1, the drain of the first transistor T1 is electrically connected to the first node N1, and the source of the first transistor T1 is electrically connected to the drain of the second transistor T2; the first inverted driving signal provided by the first inverted driving signal terminal NGI1 is inverted with the N-1th level driving signal provided by the N-1th level driving signal output terminal NS(N-1);
- the gate of the second transistor T2 is electrically connected to the Nth stage driving signal output terminal NS(N), and the source of the second transistor T2 is electrically connected to the gate input terminal VCT;
- T1 is a p-type transistor
- T2 is a p-type transistor
- the gating circuit may include a first transistor T1 and a second transistor T2;
- the gate of the first transistor T1 is electrically connected to the N-th stage driving signal output terminal NS(N), the drain of the first transistor T1 is electrically connected to the first node N1, and the source of the first transistor T1 is electrically connected to the drain of the second transistor T2;
- the gate of the second transistor T2 is electrically connected to the first inverted driving signal terminal NGI1, and the source of the second transistor T2 is electrically connected to the selection input terminal VCT; the first inverted driving signal provided by the first inverted driving signal terminal NGI1 is electrically connected to the first inverted driving signal provided by the N-1 stage driving signal output terminal NS(N-1) The N-1th level driving signal provided is inverted;
- T1 is a p-type transistor
- T2 is a p-type transistor
- the gating circuit may include a first transistor T1 and a second transistor T2;
- the gate of the first transistor T1 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the source of the first transistor T1 is electrically connected to the first node N1, and the drain of the first transistor T1 is electrically connected to the source of the second transistor T2;
- the gate of the second transistor T2 is electrically connected to the second inverted driving signal terminal NGI2, and the drain of the second transistor T2 is electrically connected to the selection input terminal VCT; the second inverted driving signal provided by the second inverted driving signal terminal NGI2 is inverted with the N-th level driving signal provided by the N-th level driving signal output terminal NS(N);
- T1 is an n-type transistor
- T2 is an n-type transistor
- the gating circuit may include a first transistor T1 and a second transistor T2 ;
- the gate of the first transistor T1 is electrically connected to the second inverted driving signal terminal NGI2, the source of the first transistor T1 is electrically connected to the first node N1, and the drain of the first transistor T1 is electrically connected to the source of the second transistor T2; the second inverted driving signal provided by the second inverted driving signal terminal NGI2 is inverted with the N-th level driving signal provided by the N-th level driving signal output terminal NS(N);
- the gate of the second transistor T2 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the drain of the second transistor T2 is electrically connected to the gate input terminal VCT;
- T1 is an n-type transistor
- T2 is an n-type transistor
- the N-1th level driving signal provided by the N-1th level driving signal output terminal NS(N-1) can be inverted by the first inverting circuit to obtain the first inverted driving signal provided by the first inverted driving signal terminal NGI1;
- the first inverting circuit includes a first inverting control transistor T01 and a second inverting control transistor T02;
- T01 is a p-type transistor
- T02 is an n-type transistor
- the N-th level driving signal provided by the N-th level driving signal output terminal NS(N) can be inverted by the second inverting circuit to obtain a second inverted driving signal provided by the second inverted driving signal terminal NGI2;
- the second inverting circuit includes a third inverting control transistor T03 and a fourth inverting control transistor T04;
- T03 is a p-type transistor
- T04 is an n-type transistor
- the driving circuit described in at least one embodiment of the present disclosure further includes a first initialization circuit
- the first initialization circuit is electrically connected to the initial control terminal, the first voltage terminal and the first node respectively, and is used to control the connection between the first node and the first voltage terminal under the control of the initial control signal provided by the initial control terminal.
- the driving circuit may further include a first initialization circuit, and the first initialization circuit controls the connection between the first node and the first voltage terminal under the control of an initial control signal.
- the first voltage terminal may be a high voltage terminal.
- the driving circuit described in at least one embodiment of the present disclosure further includes a first voltage maintaining circuit
- the first end of the first voltage maintaining circuit is electrically connected to the first node, the second end of the first voltage maintaining circuit is electrically connected to a DC voltage terminal second node, and the first voltage maintaining circuit is used to maintain the potential of the first node.
- the driving circuit may further include a first voltage maintaining circuit, and the first voltage maintaining circuit maintains the potential of the first node.
- the driving circuit may further include a first initialization circuit 21 ;
- the first initialization circuit 21 is electrically connected to the initial control terminal NCX, the first voltage terminal V1 and the first node N1 respectively, and is used to control the connection between the first node N1 and the first voltage terminal V1 under the control of the initial control signal provided by the initial control terminal NCX.
- NCX provides a valid voltage signal
- the first initialization circuit 21 controls the first node N1 to be connected to the first voltage terminal V1.
- the driving circuit may further include a first voltage maintaining circuit 22 ;
- a first end of the first voltage maintaining circuit 22 is electrically connected to the first node N1 , a second end of the first voltage maintaining circuit 22 is electrically connected to the first voltage terminal V1 , and the first voltage maintaining circuit 22 is used to maintain the potential of the first node N1 .
- the driving circuit further includes a second voltage maintaining circuit, and the first node is electrically connected to the second end of the output control circuit through the second voltage maintaining circuit;
- the second voltage maintaining circuit includes a first inverter, a second inverter and a maintaining control circuit
- the input terminal of the first inverter is electrically connected to the first node, the output terminal of the first inverter is electrically connected to the second node, the input terminal of the second inverter is electrically connected to the second node, and the output terminal of the second inverter is electrically connected to a third node and the second terminal of the output control circuit;
- the first inverter is used to invert the potential of the first node and output the inverted potential of the first node through the output terminal of the first inverter
- the second inverter is used to invert the potential of its input terminal and output the inverted potential through the output terminal of the second inverter
- the sustain control circuit is electrically connected to the sustain control terminal, the third node and the first node respectively, and is used to control the connection or disconnection between the third node and the first node under the control of a sustain control signal provided by the sustain control terminal.
- the driving circuit may further include a second voltage maintaining circuit
- the first node may be electrically connected to the second end of the output control circuit through the second voltage maintaining circuit
- the second voltage maintaining circuit may include a first inverter, a second inverter and a maintaining control circuit; the first inverter inverts the potential of the first node, and the second inverter inverts the potential of its input end; the maintaining control circuit controls the connection or disconnection between the third node and the first node under the control of a maintaining control signal provided by the maintaining control end;
- the sustain control circuit may control the third node to be disconnected from the first node when the gating circuit controls the gating input signal to be written into the first node.
- the first inverter and the second inverter included in the second voltage maintaining circuit can control the connection between the third node and the high voltage end when the potential of the first node is a high voltage, so that the potential of the third node can be higher than the potential of the first node, and can control the connection between the third node and the low voltage end when the potential of the first node is a low voltage, so that the potential of the third node can be lower than the potential of the first node, so that the third node can better control the transistor whose gate is electrically connected to the third node included in the output control circuit.
- the driving circuit may further include a second voltage maintaining circuit; the maintaining control terminal includes an N-1 The first stage driving signal output terminal NS(N-1) and the first clock signal terminal GCK;
- the first node N1 is electrically connected to the second end of the output control circuit 12 through the second voltage maintaining circuit;
- the second voltage maintaining circuit includes a first inverter F1, a second inverter F2 and a maintaining control circuit W1;
- the input end of the first inverter F1 is electrically connected to the first node N1, and the output end of the first inverter F1 is electrically connected to the second node N2;
- the input end of the second inverter F2 is electrically connected to the second node N2, and the output end of the second inverter F2 is electrically connected to the third node N3 and the second end of the output control circuit 12;
- the first inverter F1 is used to invert the potential of the first node N1, and output the inverted potential of the first node through the output end of the first inverter F1;
- the second inverter F2 is used to invert the potential at its input terminal and output the inverted potential through the output terminal of the second inverter F2;
- the maintenance control circuit W1 is electrically connected to the N-1th level drive signal output terminal NS(N-1), the first clock signal terminal GCK, the third node N3 and the first node N1, respectively, and is used to control the connection or disconnection between the third node N3 and the first node N1 under the control of the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1), and to control the connection or disconnection between the third node N3 and the first node N1 under the control of the first clock signal provided by the first clock signal terminal GCK.
- the N-1th stage driving signal output terminal may be replaced by a second clock signal terminal, but the present invention is not limited thereto.
- the maintenance control end includes a first maintenance control end and a second maintenance control end;
- the sustain control circuit includes a third transistor and a fourth transistor
- the gate of the third transistor is electrically connected to the first sustain control terminal, the first electrode of the third transistor is electrically connected to the first node, and the second electrode of the third transistor is electrically connected to the third node;
- the gate of the fourth transistor is electrically connected to the second sustain control terminal, the first electrode of the fourth transistor is electrically connected to the third node, and the second electrode of the fourth transistor is electrically connected to the first node;
- the third transistor is a p-type transistor, and the fourth transistor is an n-type transistor;
- the first sustain control terminal is the N-1th level driving signal terminal, and the second sustain control terminal is the first clock signal terminal; or,
- the first sustain control terminal is a second clock signal terminal
- the second sustain control terminal is a first clock signal terminal
- the first inverter includes a fifth transistor and a sixth transistor
- the second inverter includes a seventh transistor and an eighth transistor
- the gate of the fifth transistor is electrically connected to the first node, the first electrode of the fifth transistor is electrically connected to the first voltage terminal, and the second electrode of the fifth transistor is electrically connected to the second node;
- the gate of the sixth transistor is electrically connected to the first node, the first electrode of the sixth transistor is electrically connected to the second node, and the second electrode of the sixth transistor is electrically connected to the second voltage terminal;
- the fifth transistor is a p-type transistor, and the sixth transistor is an n-type transistor;
- the gate of the seventh transistor is electrically connected to the second node, the first electrode of the seventh transistor is electrically connected to the first voltage terminal, and the second electrode of the seventh transistor is electrically connected to the third node;
- the gate of the eighth transistor is electrically connected to the second node, the first electrode of the eighth transistor is electrically connected to the third node, and the second electrode of the eighth transistor is electrically connected to the second voltage terminal;
- the seventh transistor is a p-type transistor
- the eighth transistor is an n-type transistor.
- the first initialization circuit includes a ninth transistor, and the first voltage maintaining circuit includes a first capacitor;
- the gate of the ninth transistor is electrically connected to the initial control terminal, the first electrode of the ninth transistor is electrically connected to the first voltage terminal, and the second electrode of the ninth transistor is electrically connected to the first node;
- the first end of the first capacitor is electrically connected to the first node, and the second end of the first capacitor is electrically connected to the DC voltage end or the second node.
- the output control circuit includes a tenth transistor, an eleventh transistor, a twelfth transistor and a thirteenth transistor;
- the gate of the tenth transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the tenth transistor is electrically connected to the first voltage terminal, and the second electrode of the tenth transistor is electrically connected to the fourth node;
- the gate of the eleventh transistor is electrically connected to the first node, and the A first electrode is electrically connected to the first voltage terminal, and a second electrode of the eleventh transistor is electrically connected to the fourth node;
- the gate of the twelfth transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the twelfth transistor is electrically connected to the fourth node, and the second electrode of the twelfth transistor is electrically connected to the fifth node;
- the gate of the thirteenth transistor is electrically connected to the first node, the first electrode of the thirteenth transistor is electrically connected to the fifth node, and the second electrode of the thirteenth transistor is electrically connected to the second voltage terminal;
- the tenth transistor and the eleventh transistor are p-type transistors, and the twelfth transistor and the thirteenth transistor are n-type transistors.
- the output control circuit includes a tenth transistor, an eleventh transistor, a twelfth transistor and a thirteenth transistor;
- the gate of the tenth transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the tenth transistor is electrically connected to the first voltage terminal, and the second electrode of the tenth transistor is electrically connected to the fourth node;
- the gate of the eleventh transistor is electrically connected to the third node, the first electrode of the eleventh transistor is electrically connected to the first voltage terminal, and the second electrode of the eleventh transistor is electrically connected to the fourth node;
- the gate of the twelfth transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the twelfth transistor is electrically connected to the fourth node, and the second electrode of the twelfth transistor is electrically connected to the fifth node;
- the gate of the thirteenth transistor is electrically connected to the third node, the first electrode of the thirteenth transistor is electrically connected to the fifth node, and the second electrode of the thirteenth transistor is electrically connected to the second voltage terminal;
- the tenth transistor and the eleventh transistor are p-type transistors, and the twelfth transistor and the thirteenth transistor are n-type transistors.
- the output circuit includes a fourteenth transistor and a fifteenth transistor
- the gate of the fourteenth transistor is electrically connected to the fourth node, and the first The first electrode of the fourteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the fourteenth transistor is electrically connected to the output driving terminal;
- a gate of the fifteenth transistor is electrically connected to the fourth node, a first electrode of the fifteenth transistor is electrically connected to the output driving end, and a second electrode of the fifteenth transistor is electrically connected to the second voltage end.
- the driving signal generating circuit may include a first control circuit, a second control circuit, a third inverter, and a second initialization circuit;
- the first control circuit is electrically connected to the first clock signal terminal, the second clock signal terminal, the N-1th level drive signal output terminal and the sixth node respectively, and is used to shift and invert the N-1th drive signal provided by the N-1th level drive signal output terminal under the control of the first clock signal provided by the first clock signal terminal and the second clock signal provided by the second clock signal terminal, and obtain and output the inverted signal through the sixth node;
- the second control circuit is electrically connected to the first clock signal terminal, the second clock signal terminal, the Nth level driving signal output terminal and the sixth node respectively, and is used to invert the Nth level driving signal provided by the Nth level driving signal output terminal under the control of the first clock signal and the second clock signal, and obtain and output the inverted signal through the sixth node;
- the third inverter is electrically connected to the sixth node and the Nth stage drive signal output terminal respectively, and is used to invert the potential of the sixth node and output the inverted signal through the Nth stage drive signal output terminal;
- the second initialization circuit is electrically connected to the initial control terminal, the first voltage terminal and the Nth level drive signal output terminal respectively, and is used to control the connection between the Nth level drive signal output terminal and the first voltage terminal under the control of the initial control signal provided by the initial control terminal.
- the drive signal generating circuit may include a first control circuit, a second control circuit, a third inverter and a second initialization circuit; the first control circuit shifts and inverts the N-1th drive signal under the control of the first clock signal and the second clock signal, and outputs the inverted signal through the sixth node; the second control circuit inverts the Nth level drive signal under the control of the first clock signal and the second clock signal, and outputs the inverted signal through the sixth node; the third inverter inverts the potential of the sixth node, and outputs the inverted signal through the Nth level drive signal output terminal; the second initialization circuit controls the connection between the Nth level drive signal output terminal and the first voltage terminal under the control of the initial control signal.
- the driving signal generating circuit may include a first control circuit 31 , a second control circuit 32 , a third inverter F3 , and a second initialization circuit 30 ;
- the first control circuit 31 is electrically connected to the first clock signal terminal GCK, the second clock signal terminal GCB, the N-1th level drive signal output terminal NS(N-1) and the sixth node N6 respectively, and is used to shift and invert the N-1th drive signal provided by the N-1th level drive signal output terminal NS(N-1) under the control of the first clock signal provided by the first clock signal terminal GCK and the second clock signal provided by the second clock signal terminal GCB, and obtain and output the inverted signal through the sixth node N6;
- the second control circuit 32 is electrically connected to the first clock signal terminal GCK, the second clock signal terminal GCB, the N-th level driving signal output terminal NS(N) and the sixth node N6 respectively, and is used for inverting the N-th level driving signal provided by the N-th level driving signal output terminal NS(N) under the control of the first clock signal and the second clock signal, and obtaining and outputting the inverted signal through the sixth node N6;
- the third inverter F3 is electrically connected to the sixth node N6 and the N-th stage drive signal output terminal NS(N) respectively, and is used to invert the potential of the sixth node N6 and output the inverted signal through the N-th stage drive signal output terminal NS(N);
- the second initialization circuit 30 is electrically connected to the initial control terminal NCX, the first voltage terminal V1 and the Nth level drive signal output terminal NS(N), respectively, and is used to control the connection between the Nth level drive signal output terminal NS(N) and the first voltage terminal V1 under the control of the initial control signal provided by the initial control terminal NCX.
- the driving signal generating circuit may include a first control circuit 31 , a second control circuit 32 , a third inverter F3 and a second initialization circuit 30 ;
- the first control circuit 31 is electrically connected to the first clock signal terminal GCK, the second clock signal terminal GCB, the N-1th level drive signal output terminal NS(N-1) and the sixth node N6, respectively, and is used to shift and invert the N-1th drive signal provided by the N-1th level drive signal output terminal NS(N-1) under the control of the first clock signal provided by the first clock signal terminal GCK and the second clock signal provided by the second clock signal terminal GCB, and obtain and output the inverted N-1th drive signal through the sixth node N6. signal;
- the second control circuit 32 is electrically connected to the first clock signal terminal GCK, the second clock signal terminal GCB, the N-th level driving signal output terminal NS(N) and the sixth node N6 respectively, and is used to invert the N-th level driving signal provided by the N-th level driving signal output terminal NS(N) under the control of the first clock signal and the second clock signal, and obtain and output the inverted signal through the sixth node N6;
- the third inverter F3 is electrically connected to the sixth node N6 and the N-th stage drive signal output terminal NS(N) respectively, and is used to invert the potential of the sixth node N6 and output the inverted signal through the N-th stage drive signal output terminal NS(N);
- the second initialization circuit 30 is electrically connected to the initial control terminal NCX, the first voltage terminal V1 and the Nth level drive signal output terminal NS(N), respectively, and is used to control the connection between the Nth level drive signal output terminal NS(N) and the first voltage terminal V1 under the control of the initial control signal provided by the initial control terminal NCX.
- the first control circuit includes a sixteenth transistor, a seventeenth transistor, an eighteenth transistor and a nineteenth transistor;
- the gate of the sixteenth transistor is electrically connected to the second clock signal terminal, the first electrode of the sixteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the sixteenth transistor is electrically connected to the first electrode of the seventeenth transistor;
- the gate of the seventeenth transistor is electrically connected to the N-1th stage driving signal output terminal, and the second electrode of the seventeenth transistor is electrically connected to the sixth node;
- the gate of the eighteenth transistor is electrically connected to the N-1th stage driving signal output terminal, the first electrode of the eighteenth transistor is electrically connected to the sixth node, and the second electrode of the eighteenth transistor is electrically connected to the first electrode of the nineteenth transistor;
- the gate of the nineteenth transistor is electrically connected to the first clock signal terminal, and the second electrode of the nineteenth transistor is electrically connected to the second voltage terminal;
- the sixteenth transistor and the seventeenth transistor are p-type transistors, and the eighteenth transistor and the nineteenth transistor are n-type transistors.
- the second control circuit includes a twentieth transistor, a twenty-first transistor, a twenty-second transistor and a twenty-third transistor;
- a gate of the 20th transistor is electrically connected to the first clock signal terminal, a first electrode of the 20th transistor is electrically connected to the first voltage terminal, and a second electrode of the 20th transistor is electrically connected to a first electrode of the 21st transistor;
- a gate of the twenty-first transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the twenty-first transistor is electrically connected to the sixth node;
- a gate of the 22nd transistor is electrically connected to the Nth stage driving signal output terminal, a first electrode of the 22nd transistor is electrically connected to the sixth node, and a second electrode of the 22nd transistor is electrically connected to a first electrode of the 23rd transistor;
- a gate of the twenty-third transistor is electrically connected to the second clock signal terminal, and a second electrode of the twenty-third transistor is electrically connected to the second voltage terminal;
- the 20th transistor and the 21st transistor are p-type transistors, and the 22nd transistor and the 23rd transistor are n-type transistors.
- the third inverter includes a twenty-fourth transistor and a twenty-fifth transistor; the second initialization circuit includes a twenty-sixth transistor;
- a gate of the twenty-fourth transistor is electrically connected to the sixth node, a first electrode of the twenty-fourth transistor is electrically connected to the first voltage terminal, and a second electrode of the twenty-fourth transistor is electrically connected to a first electrode of the twenty-fifth transistor;
- a gate of the twenty-fifth transistor is electrically connected to the sixth node, and a second electrode of the twenty-fifth transistor is electrically connected to the second voltage terminal;
- the twenty-fourth transistor is a p-type transistor, and the twenty-fifth transistor is an n-type transistor;
- a gate of the twenty-sixth transistor is electrically connected to the initial control terminal, a first electrode of the twenty-sixth transistor is electrically connected to the first voltage terminal, and a second electrode of the twenty-sixth transistor is electrically connected to the Nth stage driving signal output terminal.
- the first voltage terminal may be a high voltage terminal
- the second voltage terminal may be a low voltage terminal, but is not limited thereto.
- the difference between at least one embodiment of the driving circuit shown in FIG. 20 and at least one embodiment of the driving circuit shown in FIG. 18 is that at least one embodiment of the driving circuit shown in FIG. 20 does not include a first voltage maintaining circuit.
- At least one embodiment of the driving circuit shown in FIG. 21 is different from at least one embodiment of the driving circuit shown in FIG. 19 The difference between the embodiments is that at least one embodiment of the driving circuit shown in FIG21 further includes a first voltage maintaining circuit 22;
- a first end of the first voltage maintaining circuit 22 is electrically connected to the first node N1 , a second end of the first voltage maintaining circuit 22 is electrically connected to the first voltage terminal V1 , and the first voltage maintaining circuit 22 is used to maintain the potential of the first node N1 .
- the gating circuit may include a first transistor T1 and a second transistor T2;
- the gate of the first transistor T1 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the source of the first transistor T1 is electrically connected to the first node N1, and the drain of the first transistor T1 is electrically connected to the drain of the second transistor T2;
- the gate of the second transistor T2 is electrically connected to the Nth stage driving signal output terminal NS(N), and the source of the second transistor T2 is electrically connected to the gate input terminal VCT;
- T1 is an n-type transistor and T2 is a p-type transistor;
- the first initialization circuit includes a ninth transistor T9;
- the gate of the ninth transistor T9 is electrically connected to the initial control terminal NCX, the source of the ninth transistor T9 is electrically connected to the high voltage terminal VGH, and the drain of the ninth transistor T9 is electrically connected to the first node N1;
- the output control circuit includes a tenth transistor T10, an eleventh transistor T11, a twelfth transistor T12 and a thirteenth transistor T13;
- the gate of the tenth transistor T10 is electrically connected to the Nth stage driving signal output terminal NS(N), the source of the tenth transistor T10 is electrically connected to the high voltage terminal VGH, and the source of the tenth transistor T10 is electrically connected to the fourth node N4;
- the gate of the eleventh transistor T11 is electrically connected to the first node N1, the source of the eleventh transistor T11 is electrically connected to the high voltage terminal VGH, and the drain of the eleventh transistor T11 is electrically connected to the fourth node N4;
- the gate of the twelfth transistor T12 is electrically connected to the N-th stage driving signal output terminal NS(N), the source of the twelfth transistor T12 is electrically connected to the fourth node N4, and the drain of the twelfth transistor T12 is electrically connected to the fifth node N5;
- the gate of the thirteenth transistor T13 is electrically connected to the first node N1.
- the source of the transistor T13 is electrically connected to the fifth node N5, and the drain of the thirteenth transistor T13 is electrically connected to the low voltage terminal VGL;
- the tenth transistor T10 and the eleventh transistor T11 are p-type transistors, and the twelfth transistor T12 and the thirteenth transistor T13 are n-type transistors;
- the output circuit includes a fourteenth transistor T14 and a fifteenth transistor T15;
- the gate of the fourteenth transistor T14 is electrically connected to the fourth node N4, the source of the fourteenth transistor T14 is electrically connected to the high voltage terminal VGH, and the drain of the fourteenth transistor T14 is electrically connected to the output driving terminal NO (N);
- the gate of the fifteenth transistor T15 is electrically connected to the fourth node N4, the source of the fifteenth transistor T15 is electrically connected to the output driving terminal NO(N), and the drain of the fifteenth transistor T15 is electrically connected to the low voltage terminal VGL;
- the first control circuit includes a sixteenth transistor T16, a seventeenth transistor T17, an eighteenth transistor T18 and a nineteenth transistor T19;
- the gate of the sixteenth transistor T16 is electrically connected to the second clock signal terminal GCB, the source of the sixteenth transistor T16 is electrically connected to the high voltage terminal VGH, and the drain of the sixteenth transistor T16 is electrically connected to the source of the seventeenth transistor T17;
- the gate of the nineteenth transistor T19 is electrically connected to the first clock signal terminal GCK, and the source of the nineteenth transistor T19 is electrically connected to the low voltage terminal VGL;
- the sixteenth transistor T16 and the seventeenth transistor T17 are p-type transistors, and the eighteenth transistor T18 and the nineteenth transistor T19 are n-type transistors;
- the second control circuit includes a twentieth transistor T20, a twenty-first transistor T21, a twenty-second transistor T22 and a twenty-third transistor T23;
- the gate of the twentieth transistor T20 is electrically connected to the first clock signal terminal GCK
- the source of the twentieth transistor T20 is electrically connected to the high voltage terminal VGH
- the twentieth transistor T20 is electrically connected to the first clock signal terminal GCK.
- the drain of the transistor T21 is electrically connected to the source of the transistor T21;
- a gate of the twenty-first transistor T21 is electrically connected to the Nth stage driving signal output terminal NS(N), and a drain of the twenty-first transistor T21 is electrically connected to the sixth node N6;
- a gate of the 22nd transistor T22 is electrically connected to the Nth stage driving signal output terminal NS(N), a source of the 22nd transistor T22 is electrically connected to the sixth node N6, and a source of the 22nd transistor T22 is electrically connected to a drain of the 23rd transistor T23;
- a gate of the twenty-third transistor T23 is electrically connected to the second clock signal terminal GCB, and a drain of the twenty-third transistor T23 is electrically connected to the low voltage terminal VGL;
- the 20th transistor T20 and the 21st transistor T21 are p-type transistors, and the 22nd transistor T22 and the 23rd transistor T23 are n-type transistors;
- the third inverter includes a twenty-fourth transistor T24 and a twenty-fifth transistor T25; the second initialization circuit includes a twenty-sixth transistor T26;
- a gate of the twenty-fourth transistor T24 is electrically connected to the sixth node N6, a source of the twenty-fourth transistor T24 is electrically connected to the high voltage terminal VGH, and a drain of the twenty-fourth transistor T24 is electrically connected to a source of the twenty-fifth transistor T25;
- a gate of the twenty-fifth transistor T25 is electrically connected to the sixth node N6, and a drain of the twenty-fifth transistor T25 is electrically connected to the low voltage terminal VGL;
- the twenty-fourth transistor T24 is a p-type transistor, and the twenty-fifth transistor T25 is an n-type transistor;
- the gate of the 26th transistor T26 is electrically connected to the initial control terminal NCX, the source of the 26th transistor T26 is electrically connected to the high voltage terminal VGH, and the second electrode of the 26th transistor is electrically connected to the Nth stage driving signal output terminal NS(N);
- the structure of the drive signal generating circuit is not limited to that shown in FIG. 22 .
- the drive signal generating circuit may be, for example, a 16T3C circuit, a 13T3C circuit, a 12T3C circuit, a 10T3C circuit, etc., but is not limited thereto.
- At least one embodiment of the driving circuit described in FIG. 22 of the present disclosure is in operation.
- NS(N-1) provides a high voltage signal, closes T17, opens T18, the potential of N6 is low voltage, closes T25, and opens T24.
- NS(N) and NS(N-1) both provide high voltage signals to realize the shift register from NS(N-1) to NS(N);
- NS(N-1) provides a low voltage signal, turns on T17, turns off T18, the potential of N6 is a high voltage, turns on T25, and turns off T24.
- NS(N) and NS(N-1) both provide low voltage signals to realize the shift register from NS(N-1) to NS(N).
- At least one embodiment of the driving circuit described in FIG. 22 of the present disclosure is in operation.
- T1 When NS(N-1) provides a high voltage signal, T1 is turned on, and when NS(N) provides a low voltage signal, T2 is turned on.
- VCT By simultaneously selecting the two signals, VCT within a high-low frequency switching cycle H can be obtained.
- the state of the selection input signal provided is written into the first node N1, and then T1 and T2 will not be turned on at the same time at other times to prevent the potential of N1 from being affected by the potential change of the selection input signal provided by VCT.
- T10, T11, T12 and T13 form a NAND gate, the input signals of which are respectively the signal provided by NS(N) and the potential of N1, and the output end of the NAND gate is electrically connected to the fourth node N4.
- T24 and T25 form a third inverter, the input end of which is electrically connected to N4, and the output end of the third inverter is electrically connected to NO(N);
- VCT provides a high voltage signal when T1 and T2 are turned on, N1 will be written with a high voltage, and the gate state of the NAND gate can ensure that NS(N) is normally passed to NO(N);
- VCT provides a low voltage signal when T1 and T2 are turned on
- N1 will be written with a low voltage, and the NAND gate is in a cut-off state, ensuring that NO(N) provides a low voltage signal, thereby achieving low-level maintenance of NO(N).
- NCX when the display starts (that is, when the display device is turned on), in the power-on stage before the first stage, NCX outputs a low voltage signal, T9 is turned on to control the potential of N1 to be a high voltage, and T26 is turned on so that NS (N) provides a high voltage signal; at this time, T12 and T13 are both turned on, the potential of N4 is a low voltage, T14 is turned on, T15 is turned off, and NO (N) outputs a high voltage signal, so that the second display control transistor M2 included in all pixel circuits in the effective display area can be turned on, and the residual charge in the storage capacitor Cst is cleared, thereby improving the screen flickering problem when the screen is turned on;
- T1 and T2 are turned on.
- N1 When VCT provides a low voltage signal, the potential of N1 is a low voltage signal, and C1 maintains the potential of N1; T11 is turned on, T10 is turned on, the potential of N4 is a high voltage, T15 is turned on, and NO (N) outputs a low voltage signal;
- N1 When VCT provides a high voltage signal, the potential of N1 is a high voltage signal, C1 maintains the potential of N1, T11 is turned off, T10 is turned on, the potential of N4 is a high voltage, T15 is turned on, and NO (N) outputs a low voltage signal;
- NS(N) outputs a high voltage signal.
- N1 When the potential of N1 is high, T10 is turned off, T11 is turned off, T12 and T13 are turned on, and N4 The potential is low voltage, T14 is turned on, and NO (N) outputs a high voltage signal;
- NS(N) After the Nth stage of driving signal supply, NS(N) outputs a low voltage signal.
- N1 When the potential of N1 is a low voltage signal, T10 is turned on, T11 is turned on, the potential of N4 is a high voltage, and NO(N) outputs a low voltage signal;
- N1 When the potential of N1 is a high voltage signal, T10 is turned on, T11 is turned off, the potential of N4 is a high voltage, and NO(N) outputs a low voltage signal.
- the node labeled N7 is the seventh node, and the seventh node N7 is electrically connected to the drain of T1 .
- the seventh node N7 is electrically connected to the drain of T1 .
- the driving circuit described in at least one embodiment of the present disclosure further includes a second voltage maintaining circuit; the first node N1 is electrically connected to the gate of T11 through the second voltage maintaining circuit;
- the second voltage maintaining circuit includes a first inverter, a second inverter and a maintaining control circuit
- the gate of the third transistor T3 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the source of the third transistor T3 is electrically connected to the first node N1, and the drain of the third transistor T3 is electrically connected to the third node N3;
- the gate of the fourth transistor T4 is electrically connected to the first clock signal terminal GCK, the source of the fourth transistor T4 is electrically connected to the third node N3, and the drain of the fourth transistor T4 is electrically connected to the first node N1;
- the first inverter includes a fifth transistor T5 and a sixth transistor T6, and the second inverter includes a seventh transistor T7 and an eighth transistor T8;
- the gate of the fifth transistor T5 is electrically connected to the first node N1, the source of the fifth transistor T5 is electrically connected to the high voltage terminal VGH, and the drain of the fifth transistor T5 is electrically connected to the second node N2;
- the gate of the sixth transistor T6 is electrically connected to the first node N1, the source of the sixth transistor T6 is electrically connected to the second node N2, and the drain of the sixth transistor T6 is electrically connected to the low voltage terminal VGL electrical connection;
- the gate of the seventh transistor T7 is electrically connected to the second node N2, the source of the seventh transistor T7 is electrically connected to the high voltage terminal VGH, and the drain of the seventh transistor T7 is electrically connected to the third node N3;
- the gate of the eighth transistor T8 is electrically connected to the second node N2, the source of the eighth transistor T8 is electrically connected to the third node N3, and the drain of the eighth transistor T8 is electrically connected to the low voltage terminal VGL;
- the third node N3 is electrically connected to the gate of T11 and the gate of T13 respectively.
- the third transistor T3 is a p-type transistor
- the fourth transistor T4 is an n-type transistor
- the fifth transistor T5 is a p-type transistor
- the sixth transistor T6 is an n-type transistor
- the seventh transistor T7 is a p-type transistor
- the eighth transistor T8 is an n-type transistor.
- the absolute value of the potential of N1 will be lower, and the absolute value of the potential of N1 can be controlled to increase by the first inverter and the second inverter, so as to better control the corresponding transistors in the output circuit to be turned on or off, and maintain the control circuit control when T1 and T2 are turned on, and control the disconnection between N1 and N3 so as not to affect the writing of the potential of N1.
- FIG. 24 is an operation timing diagram of at least one embodiment of the driving circuit shown in FIG. 23 of the present disclosure.
- At least one embodiment of the driving circuit shown in FIG25 further includes a first capacitor C1;
- C1 is used to stabilize the potential of N1.
- the driving method described in the embodiment of the present disclosure is applied to the above-mentioned driving circuit, and the driving method includes:
- the driving signal generating circuit performs a shift operation on the N-1th level driving signal to obtain and output the Nth level driving signal through the Nth level driving signal output terminal;
- the gating circuit controls, under the control of the gating control signal, to write the gating input signal provided by the gating input terminal into the first node;
- the output control circuit performs a NAND operation on the Nth stage driving signal and the potential of the second end of the output control circuit to obtain a first output signal
- the driving module described in the embodiment of the present disclosure includes multiple stages of the above-mentioned driving circuits
- the Nth stage driving circuit is electrically connected to the driving signal output terminal included in the N-1th stage driving circuit; N is a positive integer.
- the first-stage driving circuit is labeled S1
- the second-stage driving circuit is labeled S2
- the third-stage driving circuit is labeled S3
- the fourth-stage driving circuit is labeled S4
- the fifth-stage driving circuit is labeled S5
- the sixth-stage driving circuit is labeled S6
- the seventh-stage driving circuit is labeled S7
- the eighth-stage driving circuit is labeled S8
- the ninth-stage driving circuit is labeled S9
- the tenth-stage driving circuit is labeled S10
- the eleventh-stage driving circuit is labeled S11
- the twelfth-stage driving circuit is labeled S12;
- the terminal labeled NS(1) is the drive signal output terminal of S1, and the terminal labeled NO(1) is the output drive terminal of S1;
- the terminal labeled NS(2) is the drive signal output terminal of S2, and the terminal labeled NO(2) is the output drive terminal of S2; S2 is electrically connected to NS(1);
- the terminal labeled NS (4) is the drive signal output terminal of S4, and the terminal labeled NO (4) is the output drive terminal of S4; S4 is electrically connected to NS (3);
- the terminal labeled NS (5) is the drive signal output terminal of S5, and the terminal labeled NO (5) is the output drive terminal of S5; S5 is electrically connected to NS (4);
- the terminal labeled NS (6) is the drive signal output terminal of S6, and the terminal labeled NO (6) is the output drive terminal of S6; S6 is electrically connected to NS (5);
- the terminal labeled NS (7) is the drive signal output terminal of S7, and the terminal labeled NO (7) is the output drive terminal of S7; S7 is electrically connected to NS (6);
- the terminal labeled NS (8) is the drive signal output terminal of S8, and the terminal labeled NO (8) is the output drive terminal of S8; S8 is electrically connected to NS (7);
- the terminal labeled NS (9) is the drive signal output terminal of S9, and the terminal labeled NO (9) is the output drive terminal of S9; S9 is electrically connected to NS (8);
- the terminal labeled NS (10) is the drive signal output terminal of S10, and the terminal labeled NO (10) is the output drive terminal of S10; S10 is electrically connected to NS (9);
- the terminal labeled NS (11) is the drive signal output terminal of S11, and the terminal labeled NO (11) is the output drive terminal of S11; S11 is electrically connected to NS (10);
- the terminal labeled NS (12) is the drive signal output terminal of S12, and the terminal labeled NO (12) is the output drive terminal of S12; S12 is electrically connected to NS (11);
- S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11 and S12 are all electrically connected to the selection input terminal VCT;
- S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11 and S12 are all electrically connected to the first clock signal terminal GCK;
- S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11 and S12 are all electrically connected to the second clock signal terminal GCB.
- FIG. 27 is a timing diagram of the operation of at least one embodiment of the driving module shown in FIG. 26 .
- At least one embodiment of the driving module shown in FIG. 26 of the present disclosure is in operation, when NS(N-1) outputs a high voltage signal and NS(N) outputs a low voltage signal, if VCT outputs a low voltage signal, then when NS(N) outputs a high voltage signal, NO(N) outputs a low voltage signal;
- the display device described in the embodiment of the present disclosure includes the above-mentioned driving module.
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Abstract
Description
Claims (20)
- 一种驱动电路,包括驱动信号生成电路、选通电路、输出控制电路和输出电路;所述驱动信号生成电路分别与第N-1级驱动信号输出端和第N级驱动信号输出端电连接,用于对所述第N-1级驱动信号输出端提供的第N-1级驱动信号进行移位操作,得到并通过第N级驱动信号输出端输出第N级驱动信号;所述选通电路分别与第一节点、选通输入端和选通控制端电连接,用于在所述选通控制端提供的选通控制信号的控制下,控制将所述选通输入端提供的选通输入信号写入所述第一节点;所述输出控制电路的第一端与所述第N级驱动信号输出端电连接,所述输出控制电路的第二端与所述第一节点电连接,用于对所述第N级驱动信号和所述输出控制电路的第二端的电位进行与非操作,得到第一输出信号;所述输出电路用于对所述第一输出信号进行反相,得到并通过输出驱动端提供输出驱动信号;N为正整数。
- 如权利要求1所述的驱动电路,其中,所述选通电路用于在第N-1级驱动信号的电位为第一电压,并第N级驱动信号的电位为第二电压时,控制将所述选通输入端提供的选通输入信号写入所述第一节点。
- 如权利要求1所述的驱动电路,其中,所述选通电路包括第一晶体管;所述第一晶体管的栅极与所述选通控制端电连接,所述第一晶体管的第一极与所述第一节点电连接,所述第一晶体管的第二极与所述选通输入端电连接。
- 如权利要求1所述的驱动电路,其中,所述选通控制端包括第一选通控制端和第二选通控制端;所述选通电路包括第一晶体管和第二晶体管;所述第一晶体管的栅极与第一选通控制端电连接,所述第一晶体管的第一极与所述第一节点电连接,所述第一晶体管的第二极与所述第二晶体管的第一极电连接;所述第二晶体管的栅极与第二选通控制端电连接,所述第二晶体管的第二极与所述选通输入端电连接;所述第一选通控制端为第N-1级驱动信号输出端,所述第二选通控制端为第N级驱动信号输出端,第一晶体管为n型晶体管,第二晶体管为p型晶体管;或者,所述第一选通控制端为第N级驱动信号输出端,所述第二选通控制端为第N-1级驱动信号输出端,第一晶体管为p型晶体管,第二晶体管为n型晶体管;或者,所述第一选通控制端接入第N-1级驱动信号的反相信号,所述第二选通控制端为第N级驱动信号输出端,所述第一晶体管和所述第二晶体管都为p型晶体管;或者,所述第一选通控制端为第N级驱动信号输出端,所述第二选通控制端接入第N-1级驱动信号的反相信号;所述第一晶体管和所述第二晶体管都为p型晶体管;或者,所述第一选通控制端为第N-1级驱动信号端,所述第二选通控制端接入第N级驱动信号的反相信号,所述第一晶体管和所述第二晶体管都为n型晶体管;或者,所述第一选通控制端接入第N级驱动信号的反相信号,所述第二选通控制端为第N-1级驱动信号端,所述第一晶体管和所述第二晶体管都为n型晶体管。
- 如权利要求1所述的驱动电路,其中,还包括第一初始化电路;所述第一初始化电路分别与初始控制端、第一电压端和第一节点电连接,用于在所述初始控制端提供的初始控制信号的控制下,控制所述第一节点与所述第一电压端之间连通。
- 如权利要求5所述的驱动电路,其中,还包括第一电压维持电路;所述第一电压维持电路的第一端与所述第一节点电连接,所述第一电压维持电路的第二端与直流电压端或第二节点电连接,所述第一电压维持电路用于维持第一节点的电位。
- 如权利要求1至6中任一权利要求所述的驱动电路,其中,还包括第二电压维持电路,所述第一节点通过所述第二电压维持电路与所述输出控制电路的第二端电连接;所述第二电压维持电路包括第一反相器、第二反相器和维持控制电路;所述第一反相器的输入端与所述第一节点电连接,所述第一反相器的输出端与第二节点电连接,所述第二反相器的输入端与所述第二节点电连接,所述第二反相器的输出端与第三节点和所述输出控制电路的第二端电连接;所述第一反相器用于对所述第一节点的电位进行反相,并通过第一反相器的输出端输出反相后的第一节点的电位,所述第二反相器用于对其输入端的电位进行反相,并通过所述第二反相器的输出端输出反相后的电位;所述维持控制电路分别与维持控制端、所述第三节点和所述第一节点电连接,用于在所述维持控制端提供的维持控制信号的控制下,控制所述第三节点与所述第一节点之间连通或断开。
- 如权利要求7所述的驱动电路,其中,所述维持控制端包括第一维持控制端和第二维持控制端;所述维持控制电路包括第三晶体管和第四晶体管;所述第三晶体管的栅极与第一维持控制端电连接,所述第三晶体管的第一极与所述第一节点电连接,所述第三晶体管的第二极与所述第三节点电连接;所述第四晶体管的栅极与第二维持控制端电连接,所述第四晶体管的第一极与所述第三节点电连接,所述第四晶体管的第二极与所述第一节点电连接;所述第三晶体管为p型晶体管,所述第四晶体管为n型晶体管;所述第一维持控制端为第N-1级驱动信号端,所述第二维持控制端为第一时钟信号端;或者,所述第一维持控制端为第二时钟信号端,所述第二维持控制端为第一时钟信号端。
- 如权利要求7所述的驱动电路,其中,所述第一反相器包括第五晶体管和第六晶体管,所述第二反相器包括第七晶体管和第八晶体管;所述第五晶体管的栅极与所述第一节点电连接,所述第五晶体管的第一极与第一电压端电连接,所述第五晶体管的第二极与第二节点电连接;所述第六晶体管的栅极与所述第一节点电连接,所述第六晶体管的第一 极与所述第二节点电连接,所述第六晶体管的第二极与第二电压端电连接;所述第五晶体管为p型晶体管,所述第六晶体管为n型晶体管;所述第七晶体管的栅极与所述第二节点电连接,所述第七晶体管的第一极与所述第一电压端电连接,所述第七晶体管的第二极与第三节点电连接;所述第八晶体管的栅极与所述第二节点电连接,所述第八晶体管的第一极与所述第三节点电连接,所述第八晶体管的第二极与第二电压端电连接;所述第七晶体管为p型晶体管,所述第八晶体管为n型晶体管。
- 如权利要求6所述的驱动电路,其中,所述第一初始化电路包括第九晶体管,所述第一电压维持电路包括第一电容;所述第九晶体管的栅极与所述初始控制端电连接,所述第九晶体管的第一极与第一电压端电连接,所述第九晶体管的第二极与第一节点电连接;所述第一电容的第一端与所述第一节点电连接,所述第一电容的第二端与所述直流电压端或第二节点电连接。
- 如权利要求1至6中任一权利要求所述的驱动电路,其中,所述输出控制电路包括第十晶体管、第十一晶体管、第十二晶体管和第十三晶体管;所述第十晶体管的栅极与所述第N级驱动信号输出端电连接,所述第十晶体管的第一极与第一电压端电连接,所述第十晶体管的第二极与第四节点电连接;所述第十一晶体管的栅极与所述第一节点电连接,所述第十一晶体管的第一极与所述第一电压端电连接,所述第十一晶体管的第二极所述第四节点电连接;所述第十二晶体管的栅极与所述第N级驱动信号输出端电连接,所述第十二晶体管的第一极与所述第四节点电连接,所述第十二晶体管的第二极与第五节点电连接;所述第十三晶体管的栅极与所述第一节点电连接,所述第十三晶体管的第一极与所述第五节点电连接,所述第十三晶体管的第二极与第二电压端电连接;所述第十晶体管和所述第十一晶体管为p型晶体管,所述第十二晶体管和所述第十三晶体管为n型晶体管。
- 如权利要求7所述的驱动电路,其中,所述输出控制电路包括第十晶体管、第十一晶体管、第十二晶体管和第十三晶体管;所述第十晶体管的栅极与所述第N级驱动信号输出端电连接,所述第十晶体管的第一极与第一电压端电连接,所述第十晶体管的第二极与第四节点电连接;所述第十一晶体管的栅极与所述第三节点电连接,所述第十一晶体管的第一极与所述第一电压端电连接,所述第十一晶体管的第二极所述第四节点电连接;所述第十二晶体管的栅极与所述第N级驱动信号输出端电连接,所述第十二晶体管的第一极与所述第四节点电连接,所述第十二晶体管的第二极与第五节点电连接;所述第十三晶体管的栅极与所述第三节点电连接,所述第十三晶体管的第一极与所述第五节点电连接,所述第十三晶体管的第二极与第二电压端电连接;所述第十晶体管和所述第十一晶体管为p型晶体管,所述第十二晶体管和所述第十三晶体管为n型晶体管。
- 如权利要求1至6中任一权利要求所述的驱动电路,其中,所述输出电路包括第十四晶体管和第十五晶体管;所述第十四晶体管的栅极与第四节点电连接,所述第十四晶体管的第一极与第一电压端电连接,所述第十四晶体管的第二极与输出驱动端电连接;所述第十五晶体管的栅极与所述第四节点电连接,所述第十五晶体管的第一极与所述输出驱动端电连接,所述第十五晶体管的第二极与第二电压端电连接。
- 如权利要求1至6中任一权利要求所述的驱动电路,其中,所述驱动信号生成电路包括第一控制电路、第二控制电路、第三反相器和第二初始化电路;所述第一控制电路分别与第一时钟信号端、第二时钟信号端、第N-1级驱动信号输出端和第六节点电连接,用于在所述第一时钟信号端提供的第一时钟信号和所述第二时钟信号端提供的第二时钟信号的控制下,对所述第N-1 级驱动信号输出端提供的第N-1驱动信号进行移位并反相,得到并通过所述第六节点输出反相后的信号;所述第二控制电路分别与所述第一时钟信号端、所述第二时钟信号端、第N级驱动信号输出端和第六节点电连接,用于在所述第一时钟信号和所述第二时钟信号的控制下,对所述第N级驱动信号输出端提供的第N级驱动信号进行反相,得到并通过所述第六节点输出反相后的信号;所述第三反相器分别与所述第六节点和所述第N级驱动信号输出端电连接,用于对所述第六节点的电位进行反相,并通过所述第N级驱动信号输出端输出反相后的信号;所述第二初始化电路分别与初始控制端、第一电压端和所述第N级驱动信号输出端电连接,用于在所述初始控制端提供的初始控制信号的控制下,控制所述第N级驱动信号输出端与所述第一电压端之间连通。
- 如权利要求14所述的驱动电路,其中,所述第一控制电路包括第十六晶体管、第十七晶体管、第十八晶体管和第十九晶体管;所述第十六晶体管的栅极与所述第二时钟信号端电连接,所述第十六晶体管的第一极与所述第一电压端电连接,所述第十六晶体管的第二极与所述第十七晶体管的第一极电连接;所述第十七晶体管的栅极与所述第N-1级驱动信号输出端电连接,所述第十七晶体管的第二极与所述第六节点电连接;所述第十八晶体管的栅极与所述第N-1级驱动信号输出端电连接,所述第十八晶体管的第一极与所述第六节点电连接,所述第十八晶体管的第二极与所述第十九晶体管的第一极电连接;所述第十九晶体管的栅极与所述第一时钟信号端电连接,所述第十九晶体管的第二极与第二电压端电连接;所述第十六晶体管和所述第十七晶体管为p型晶体管,所述第十八晶体管和所述第十九晶体管为n型晶体管。
- 如权利要求14所述的驱动电路,其中,所述第二控制电路包括第二十晶体管、第二十一晶体管、第二十二晶体管和第二十三晶体管;所述第二十晶体管的栅极与所述第一时钟信号端电连接,所述第二十晶 体管的第一极与第一电压端电连接,所述第二十晶体管的第二极与所述第二十一晶体管的第一极电连接;所述第二十一晶体管的栅极与所述第N级驱动信号输出端电连接,所述第二十一晶体管的第二极与所述第六节点电连接;所述第二十二晶体管的栅极与所述第N级驱动信号输出端电连接,所述第二十二晶体管的第一极与所述第六节点电连接,所述第二十二晶体管的第二极与所述第二十三晶体管的第一极电连接;所述第二十三晶体管的栅极与所述第二时钟信号端电连接,所述第二十三晶体管的第二极与第二电压端电连接;所述第二十晶体管和所述第二十一晶体管为p型晶体管,所述第二十二晶体管和所述第二十三晶体管为n型晶体管。
- 如权利要求14所述的驱动电路,其中,所述第三反相器包括第二十四晶体管和第二十五晶体管;所述第二初始化电路包括第二十六晶体管;所述第二十四晶体管的栅极与所述第六节点电连接,所述第二十四晶体管的第一极与所述第一电压端电连接,所述第二十四晶体管的第二极与所述第二十五晶体管的第一极电连接;所述第二十五晶体管的栅极与所述第六节点电连接,所述第二十五晶体管的第二极与第二电压端电连接;所述第二十四晶体管为p型晶体管,所述第二十五晶体管为n型晶体管;所述第二十六晶体管的栅极与所述初始控制端电连接,所述第二十六晶体管的第一极与所述第一电压端电连接,所述第二十六晶体管的第二极与所述第N级驱动信号输出端电连接。
- 一种驱动方法,应用于如权利要求1至17中任一权利要求所述的驱动电路,所述驱动方法包括:驱动信号生成电路对第N-1级驱动信号进行移位操作,得到并通过第N级驱动信号输出端输出第N级驱动信号;选通电路在选通控制信号的控制下,控制将选通输入端提供的选通输入信号写入第一节点;输出控制电路对所述第N级驱动信号和所述输出控制电路的第二端的电 位进行与非操作,得到第一输出信号;输出电路用于对所述第一输出信号进行反相,得到并通过输出驱动端提供输出驱动信号。
- 一种驱动模组,包括多级如权利要求1至17中任一权利要求所述的驱动电路;第N级驱动电路与第N-1级驱动电路包括的驱动信号输出端电连接;N为正整数。
- 一种显示装置,包括如权利要求19所述的驱动模组。
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| US20200312220A1 (en) * | 2019-03-29 | 2020-10-01 | Cree, Inc. | Active control of light emitting diodes and light emitting diode displays |
| CN113785349A (zh) * | 2019-05-14 | 2021-12-10 | 夏普株式会社 | 显示装置及其驱动方法 |
| CN113066446A (zh) * | 2019-12-31 | 2021-07-02 | 乐金显示有限公司 | 选通驱动电路和包括该选通驱动电路的发光显示装置 |
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| US20250078740A1 (en) | 2025-03-06 |
| CN119604926B (zh) | 2026-01-23 |
| US12272303B2 (en) | 2025-04-08 |
| CN119604926A (zh) | 2025-03-11 |
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