Driving circuit, driving method and display device
By designing a driving circuit including a driving signal generation circuit and a control circuit, the update of the pixel circuit is controlled by using the clock signal and the gate signal, the power consumption waste problem of the OLED display in the static picture is solved, and efficient local picture update is achieved and low power consumption.
Patent Information
- Application Number
- CN202310720909.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-16
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2043-06-16
AI Technical Summary
When the OLED display updates the screen, especially when the screen AOD display screen or static screen, most pixel circuits in the entire screen do not need to update the pixel voltage, and repeated flashing and writing are wasted.
A driving circuit is designed, including a driving signal generation circuit, M output driving terminals and M control circuits. By controlling the clock signal and the gate signal, efficient initialization and update of the pixel circuit is achieved to avoid unnecessary voltage writing.
It effectively reduces the power consumption of the display screen, realizes the update of local pictures, and improves the ultra-low power consumption performance of OLED display products.
Smart Images

Figure CN119152812A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of display technology, and in particular to a driving circuit, a driving method and a display device. Background Art
[0002] In the related art, when an OLED (organic light-emitting diode) display updates the screen, it is necessary to initialize and write the pixel voltage of all rows of pixel circuits within one frame time. However, in some special screens (such as the AOD display screen (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. Summary of the invention
[0003] The main purpose of the present invention is to provide a driving circuit, a driving method and a display device to solve the problem in the related art that a partial picture of a display screen cannot be updated.
[0004] In one aspect, the present invention provides a driving circuit, comprising a driving signal generating circuit, M output driving terminals and M control circuits; the mth control circuit comprises an mth gating circuit, an mth output control circuit and an mth output circuit; M is a positive integer; m is a positive integer less than or equal to M;
[0005] The drive signal generating circuit is electrically connected to the control clock signal terminal, the N-1th level drive signal output terminal and the Nth level drive signal output terminal respectively, and is used for performing a shift operation on the N-1th level drive signal provided by the N-1th level drive signal output terminal under the control of the control clock signal provided by the control clock signal terminal, so as to obtain and output the Nth level drive signal through the Nth level drive signal output terminal;
[0006] The m-th gating circuit is electrically connected to the m-th first node, the m-th gating input terminal and the m-th gating control terminal respectively, and is used for controlling the writing of the m-th gating input signal provided by the m-th gating input terminal into the m-th first node under the control of the m-th gating control signal provided by the m-th gating control terminal;
[0007] The first end of the m-th output control circuit is electrically connected to the N-th level drive signal output end, and the second end of the m-th output control circuit is electrically connected to the m-th first node, and is used to perform a NAND operation on the N-th level drive signal and the potential of the second end of the m-th output control circuit to obtain the m-th first output signal;
[0008] The mth output circuit is used to invert the mth first output signal, and obtain an mth output driving signal through the mth output driving terminal;
[0009] N is a positive integer.
[0010] Optionally, the driving circuit described in at least one embodiment of the present invention further includes a first inverting circuit;
[0011] The first inversion circuit is electrically connected to the control clock signal terminal and the inverted clock signal terminal respectively, and is used to invert the control clock signal to obtain an inverted clock signal, and output the inverted clock signal through the inverted clock signal terminal;
[0012] The drive signal generating circuit is also electrically connected to the inverted clock signal terminal, and is also used to shift the N-1th level drive signal provided by the N-1th level drive signal output terminal under the control of the inverted clock signal, to obtain and output the Nth level drive signal through the Nth level drive signal output terminal.
[0013] Optionally, the mth selection circuit is used to control the writing of the mth selection input signal provided by the mth selection input terminal into the mth 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.
[0014] Optionally, the mth gating control terminal includes an mth first control terminal, an mth second control terminal, an mth third control terminal and an mth fourth control terminal, and the mth gating circuit includes an mth first gating transistor, an mth second gating transistor, an mth third gating transistor and an mth fourth gating transistor;
[0015] The gate of the mth first selection transistor is electrically connected to the mth first control terminal, and the first electrode of the mth first selection transistor is electrically connected to the mth selection input terminal;
[0016] The gate of the mth second selection transistor is electrically connected to the mth second control terminal, and the first electrode of the mth second selection transistor is electrically connected to the mth selection input terminal;
[0017] The gate of the mth third selection transistor is electrically connected to the mth third control terminal, the first electrode of the mth third selection transistor is electrically connected to the second electrode of the mth first selection transistor, and the second electrode of the mth third selection transistor is electrically connected to the mth first node;
[0018] The gate of the mth fourth selection transistor is electrically connected to the mth fourth control terminal, the first electrode of the mth fourth selection transistor is electrically connected to the second electrode of the mth second selection transistor, and the second electrode of the mth fourth selection transistor is electrically connected to the mth first node;
[0019] The mth first selection transistor is a p-type transistor, the mth second selection transistor is an n-type transistor, the mth third selection transistor is a p-type transistor, and the mth fourth selection transistor is an n-type transistor;
[0020] The mth first control terminal is connected to the inverted signal of the N-1th level drive signal, the mth second control terminal is the N-1th level drive signal output terminal, the mth third control terminal is the Nth level drive signal output terminal, and the mth fourth control terminal is connected to the inverted signal of the Nth level drive signal; or, the mth first control terminal is connected to the inverted signal of the Nth level drive signal, the mth second control terminal is the Nth level drive signal output terminal, the mth third control terminal is the N-1th level drive signal output terminal, and the mth fourth control terminal is connected to the inverted signal of the N-1th level drive signal.
[0021] Optionally, the second electrode of the mth first selection transistor is electrically connected to the second electrode of the mth second selection transistor.
[0022] Optionally, the mth gating circuit includes an mth first gating transistor;
[0023] The gate of the mth first selection transistor is electrically connected to the mth selection control terminal, the first electrode of the mth first selection transistor is electrically connected to the mth first node, and the second electrode of the mth first selection transistor is electrically connected to the mth selection input terminal.
[0024] Optionally, the mth gating control terminal includes an mth first control terminal and an mth second control terminal; the mth gating circuit includes an mth first gating transistor and an mth second gating transistor;
[0025] The gate of the mth first selection transistor is electrically connected to the mth first control terminal, the first electrode of the mth first selection transistor is electrically connected to the mth first node, and the second electrode of the mth first selection transistor is electrically connected to the first electrode of the mth second selection transistor;
[0026] The gate of the mth second selection transistor is electrically connected to the mth second control terminal, and the second electrode of the mth second selection transistor is electrically connected to the mth selection input terminal;
[0027] The mth first control terminal is the N-1th level drive signal output terminal, the mth second control terminal is the Nth level drive signal output terminal, the mth first selection transistor is an n-type transistor, and the mth second selection transistor is a p-type transistor; or,
[0028] The mth first control terminal is the Nth level drive signal output terminal, the mth second control terminal is the N-1th level drive signal output terminal, the mth first selection transistor is a p-type transistor, and the mth second selection transistor is an n-type transistor; or,
[0029] The mth first control terminal is connected to the inverted signal of the N-1th level driving signal, the mth second control terminal is the Nth level driving signal output terminal, and the mth first selection transistor and the mth second selection transistor are both p-type transistors; or,
[0030] The mth first control terminal is an output terminal of the Nth level driving signal, and the mth second control terminal is connected to the inverted signal of the N-1th level driving signal; the mth first selection transistor and the mth second selection transistor are both p-type transistors; or,
[0031] The mth first control terminal is the N-1th level driving signal terminal, the mth second control terminal is connected to the inverted signal of the Nth level driving signal, and the mth first selection transistor and the mth second selection transistor are both n-type transistors; or,
[0032] The mth first control terminal is connected to the inverted signal of the Nth level driving signal, the mth second control terminal is the N-1th level driving signal terminal, and the mth first selection transistor and the mth second selection transistor are both n-type transistors.
[0033] Optionally, the mth control circuit further includes an mth first initialization circuit;
[0034] The mth first initialization circuit is electrically connected to the initial control terminal, the first voltage terminal and the mth first node respectively, and is used to control the connection between the mth first node and the first voltage terminal under the control of the initial control signal provided by the initial control terminal.
[0035] Optionally, the mth control circuit further includes an mth reset circuit;
[0036] The mth reset circuit is electrically connected to the first voltage terminal, the N-1th level drive signal output terminal, the N-1th level drive signal output terminal and the mth first node, respectively, and is used to control the connection between the mth first node and the first voltage terminal under the control of the N-1th level drive signal and the N-1th level drive signal provided by the N-1th level drive signal output terminal.
[0037] Optionally, the mth control circuit further includes an mth first voltage maintaining circuit;
[0038] The first end of the mth first voltage maintaining circuit is electrically connected to the mth first node, the second end of the mth first voltage maintaining circuit is electrically connected to the DC voltage end, and the mth voltage maintaining circuit is used to maintain the potential of the mth first node.
[0039] Optionally, the m-th control circuit further includes an m-th second voltage maintaining circuit; the m-th first node is electrically connected to the second end of the m-th output control circuit through the m-th second voltage maintaining circuit;
[0040] The mth second voltage maintaining circuit comprises an mth first inverter, an mth second inverter and an mth maintaining control circuit;
[0041] The input end of the mth first inverter is electrically connected to the mth first node, the output end of the mth first inverter is electrically connected to the mth second node, the input end of the mth second inverter is electrically connected to the mth second node, and the output end of the mth second inverter is electrically connected to the mth third node and the second end of the mth output control circuit;
[0042] The mth first inverter is used to invert the potential of the mth first node, and output the inverted potential of the mth first node through the output end of the mth first inverter, and the mth second inverter is used to invert the potential of its input end, and output the inverted potential through the output end of the mth second inverter;
[0043] The mth maintenance control circuit is electrically connected to the mth maintenance control terminal, the mth third node and the mth first node respectively, and is used to control the connection or disconnection between the mth third node and the mth first node under the control of the mth maintenance control signal provided by the mth maintenance control terminal.
[0044] Optionally, the mth reset circuit includes an mth first transistor and an mth second transistor;
[0045] The gate of the mth first transistor is electrically connected to the N-1th stage driving signal output terminal, the first electrode of the mth first transistor is electrically connected to the first voltage terminal, and the second electrode of the mth first transistor is electrically connected to the first electrode of the mth second transistor;
[0046] A gate electrode of the mth second transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the mth second transistor is electrically connected to the mth first node.
[0047] Optionally, the mth maintenance control terminal includes an mth first maintenance control terminal and an mth second maintenance control terminal;
[0048] The mth sustain control circuit comprises an mth third transistor and an mth fourth transistor;
[0049] The gate of the mth third transistor is electrically connected to the mth first sustain control terminal, the first electrode of the mth third transistor is electrically connected to the mth first node, and the second electrode of the mth third transistor is electrically connected to the mth third node;
[0050] The gate of the mth fourth transistor is electrically connected to the mth second sustain control terminal, the first electrode of the mth fourth transistor is electrically connected to the mth third node, and the second electrode of the mth fourth transistor is electrically connected to the mth first node;
[0051] The mth third transistor is a p-type transistor, and the mth fourth transistor is an n-type transistor;
[0052] The mth first sustain control terminal is the N-1th level driving signal terminal, and the mth second sustain control terminal is the control clock signal terminal; or,
[0053] The mth first sustain control terminal is an inverted clock signal terminal, and the mth second sustain control terminal is a control clock signal terminal.
[0054] Optionally, the mth first inverter includes an mth fifth transistor and an mth sixth transistor, and the mth second inverter includes an mth seventh transistor and an mth eighth transistor;
[0055] The gate of the mth fifth transistor is electrically connected to the mth first node, the first electrode of the mth fifth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth fifth transistor is electrically connected to the mth second node;
[0056] The gate of the mth sixth transistor is electrically connected to the mth first node, the first electrode of the mth sixth transistor is electrically connected to the mth second node, and the second electrode of the mth sixth transistor is electrically connected to the second voltage terminal;
[0057] The mth fifth transistor is a p-type transistor, and the mth sixth transistor is an n-type transistor;
[0058] A gate of the mth seventh transistor is electrically connected to the mth second node, a first electrode of the mth seventh transistor is electrically connected to the first voltage terminal, and a second electrode of the mth seventh transistor is electrically connected to the mth third node;
[0059] The gate of the mth eighth transistor is electrically connected to the mth second node, the first electrode of the mth eighth transistor is electrically connected to the mth third node, and the second electrode of the mth eighth transistor is electrically connected to the second voltage terminal;
[0060] The mth seventh transistor is a p-type transistor, and the mth eighth transistor is an n-type transistor.
[0061] Optionally, the mth first initialization circuit includes an mth ninth transistor;
[0062] The gate of the mth ninth transistor is electrically connected to the initial control terminal, the first electrode of the mth ninth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth ninth transistor is electrically connected to the mth first node.
[0063] Optionally, the mth first voltage maintaining circuit includes an mth capacitor;
[0064] The first end of the m-th capacitor is electrically connected to the m-th first node, and the second end of the m-th capacitor is electrically connected to a DC voltage terminal.
[0065] Optionally, the mth output control circuit includes an mth tenth transistor, an mth eleventh transistor, an mth twelfth transistor and an mth thirteenth transistor;
[0066] The gate of the mth tenth transistor is electrically connected to the mth first node, the first electrode of the mth tenth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth tenth transistor is electrically connected to the mth second node;
[0067] The gate of the mth eleventh transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the mth eleventh transistor is electrically connected to the first voltage terminal, and the second electrode of the mth eleventh transistor is electrically connected to the mth second node;
[0068] A gate of the mth twelfth transistor is electrically connected to the mth first node, a first electrode of the mth twelfth transistor is electrically connected to the mth second node, and a second electrode of the mth twelfth transistor is electrically connected to a first electrode of the mth thirteenth transistor;
[0069] The gate of the mth thirteenth transistor is electrically connected to the N-level driving signal output terminal, and the second electrode of the mth thirteenth transistor is electrically connected to the second voltage terminal;
[0070] The m-th tenth transistor and the m-th eleventh transistor are p-type transistors, and the m-th twelfth transistor and the m-th thirteenth transistor are n-type transistors.
[0071] Optionally, the m-th output circuit includes an m-th fourteenth transistor and an m-th fifteenth transistor;
[0072] The gate of the m-th fourteenth transistor is electrically connected to the m-th second node, the first electrode of the m-th fourteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the m-th fourteenth transistor is electrically connected to the m-th output driving terminal;
[0073] The gate of the mth fifteenth transistor is electrically connected to the mth second node, the first electrode of the mth fifteenth transistor is electrically connected to the mth output driving terminal, and the second electrode of the mth fifteenth transistor is electrically connected to the second voltage terminal.
[0074] Optionally, the driving signal generating circuit includes a first driving control circuit, a second driving control circuit, a second inverting circuit and a second initialization circuit;
[0075] The first drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the N-1th level drive signal output terminal and the fourth 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 control clock signal provided by the control clock signal terminal and the inverted clock signal provided by the inverted clock signal terminal, and obtain and output the inverted signal through the fourth node;
[0076] The second drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the Nth level drive signal output terminal and the fourth node respectively, and is used to invert the Nth level drive signal provided by the Nth level drive signal output terminal under the control of the control clock signal and the inverted clock signal, and obtain and output the inverted signal through the fourth node;
[0077] The second inverting circuit is electrically connected to the fourth node and the Nth level driving signal output terminal respectively, and is used to invert the potential of the fourth node and output the inverted signal through the Nth level driving signal output terminal;
[0078] 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.
[0079] Optionally, the first drive control circuit includes a sixteenth transistor, a seventeenth transistor, an eighteenth transistor and a nineteenth transistor;
[0080] The gate of the sixteenth transistor is electrically connected to the inverted 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;
[0081] 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 fourth node;
[0082] 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 fourth node, and the second electrode of the eighteenth transistor is electrically connected to the first electrode of the nineteenth transistor;
[0083] The gate of the nineteenth transistor is electrically connected to the control clock signal terminal, and the second electrode of the nineteenth transistor is electrically connected to the third voltage terminal;
[0084] The sixteenth transistor and the seventeenth transistor are p-type transistors, and the eighteenth transistor and the nineteenth transistor are n-type transistors.
[0085] Optionally, the second drive control circuit includes a twentieth transistor, a twenty-first transistor, a twenty-second transistor and a twenty-third transistor;
[0086] The gate of the 20th transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the 20th transistor is electrically connected to the first voltage terminal, and the second electrode of the 20th transistor is electrically connected to the first electrode of the 21st transistor;
[0087] A gate of the twenty-first transistor is electrically connected to the control clock signal terminal, and a second electrode of the twenty-first transistor is electrically connected to the fourth node;
[0088] A gate of the 22nd transistor is electrically connected to the inverted clock signal terminal, a first electrode of the 22nd transistor is electrically connected to the fourth node, and a second electrode of the 22nd transistor is electrically connected to a first electrode of the 23rd transistor;
[0089] A gate of the twenty-third transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the twenty-third transistor is electrically connected to the third voltage terminal;
[0090] The 20th transistor and the 21st transistor are p-type transistors, and the 22nd transistor and the 23rd transistor are n-type transistors.
[0091] Optionally, the second inverting circuit includes a twenty-fourth transistor and a twenty-fifth transistor; the second initializing circuit includes a twenty-sixth transistor;
[0092] The gate of the 24th transistor is electrically connected to the fourth node, the first electrode of the 24th transistor is electrically connected to the first voltage terminal, and the second electrode of the 24th transistor is electrically connected to the first electrode of the 25th transistor and the Nth stage driving signal output terminal;
[0093] A gate of the twenty-fifth transistor is electrically connected to the fourth node, and a second electrode of the twenty-fifth transistor is electrically connected to the third voltage terminal;
[0094] The twenty-fourth transistor is a p-type transistor, and the twenty-fifth transistor is an n-type transistor;
[0095] 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.
[0096] Optionally, the first inverting circuit includes a twenty-seventh transistor and a twenty-eighth transistor;
[0097] The gate of the twenty-seventh transistor is electrically connected to the control clock signal terminal, the first electrode of the twenty-seventh transistor is electrically connected to the first voltage terminal, and the second electrode of the twenty-seventh transistor is electrically connected to the first electrode of the twenty-eighth transistor and the inverted clock signal terminal;
[0098] A gate of the twenty-eighth transistor is electrically connected to the control clock signal terminal, and a second electrode of the twenty-eighth transistor is electrically connected to the third voltage terminal.
[0099] In a second aspect, an embodiment of the present invention provides a driving method, which is applied to the above-mentioned driving circuit, and the driving method includes:
[0100] The driving signal generating circuit performs a shift operation on the N-1th level driving signal under the control of the control clock signal, obtains and outputs the Nth level driving signal through the Nth level driving signal output terminal;
[0101] The mth gating circuit controls, under the control of the mth gating control signal, to write the mth gating input signal into the mth first node;
[0102] The mth output control circuit performs a NAND operation on the Nth stage driving signal and the potential of the second end of the mth output control circuit to obtain an mth first output signal;
[0103] The mth output circuit is used to invert the mth first output signal, and obtain an mth output driving signal through the mth output driving terminal;
[0104] M is a positive integer; m is a positive integer less than or equal to M, and N is a positive integer.
[0105] In a third aspect, an embodiment of the present invention provides a display device, comprising the above-mentioned driving circuit.
[0106] The embodiment of the present invention can realize the updating of a partial picture of the display screen by controlling the selection input signal provided by the selection input terminal, thereby reducing power consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0107] Figure 1 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0108] Figure 2 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0109] Figure 3 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0110] Figure 4 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0111] Figure 5 is a circuit diagram of a related pixel circuit;
[0112] Figure 6 yes Figure 5 The working timing diagram of the related pixel circuit shown;
[0113] Figure 7 is a circuit diagram of a related pixel circuit;
[0114] Figure 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 invention;
[0115] 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 invention;
[0116] 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 invention;
[0117] 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 invention;
[0118] Fig.12is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present invention;
[0119] Fig.13 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present invention;
[0120] Fig.14 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present invention;
[0121] Fig.15 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present invention;
[0122] Fig.16 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present invention;
[0123] Fig.17 is a circuit diagram of at least one embodiment of a gating circuit in a driving circuit according to an embodiment of the present invention;
[0124] Fig.18 is a circuit diagram of at least one embodiment of a first inverting module;
[0125] Fig.19 is a circuit diagram of at least one embodiment of a second inverting module;
[0126] Fig. 20 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0127] Fig.21 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0128] Fig. 22 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0129] Fig.23 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0130] Fig.24 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0131] Fig.25 is a waveform diagram of a control clock signal provided by the control clock signal terminal NCK and a waveform diagram of a first clock signal provided by the first clock signal terminal NCB;
[0132] Fig.26 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0133] Fig. 27is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0134] Fig.28 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0135] Fig.29 is a circuit diagram of a driving circuit according to at least one embodiment of the present invention;
[0136] Fig.30 is a structural diagram of a driving circuit according to at least one embodiment of the present invention;
[0137] Fig.31 yes Fig.30 An operation timing diagram of at least one embodiment of the driving circuit shown;
[0138] Fig.32 It is the timing diagram of the signals output by each level of output driver;
[0139] Fig.33 is a circuit diagram of at least one embodiment of a second voltage maintaining circuit. DETAILED DESCRIPTION
[0140] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0141] The transistors used in all embodiments of the present invention may be thin film transistors or field effect transistors or other devices with the same characteristics. In the embodiments of the present invention, to distinguish the two electrodes of the transistor except the gate, one electrode is called the first electrode and the other electrode is called the second electrode.
[0142] In actual operation, 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.
[0143] The driving circuit according to the embodiment of the present invention comprises a driving signal generating circuit, M output driving terminals and M control circuits; the mth control circuit comprises an mth gating circuit, an mth output control circuit and an mth output circuit; M is a positive integer; m is a positive integer less than or equal to M;
[0144] The drive signal generating circuit is electrically connected to the control clock signal terminal, the N-1th level drive signal output terminal and the Nth level drive signal output terminal respectively, and is used for performing a shift operation on the N-1th level drive signal provided by the N-1th level drive signal output terminal under the control of the control clock signal provided by the control clock signal terminal, so as to obtain and output the Nth level drive signal through the Nth level drive signal output terminal;
[0145] The m-th gating circuit is electrically connected to the m-th first node, the m-th gating input terminal and the m-th gating control terminal respectively, and is used for controlling the writing of the m-th gating input signal provided by the m-th gating input terminal into the m-th first node under the control of the m-th gating control signal provided by the m-th gating control terminal;
[0146] The first end of the m-th output control circuit is electrically connected to the N-th level drive signal output end, and the second end of the m-th output control circuit is electrically connected to the m-th first node, and is used to perform a NAND operation on the N-th level drive signal and the potential of the second end of the m-th output control circuit to obtain the m-th first output signal;
[0147] The mth output circuit is used to invert the mth first output signal, and obtain an mth output driving signal through the mth output driving terminal;
[0148] N is a positive integer.
[0149] In the driving circuit described in the embodiment of the present invention, one driving signal generating circuit may correspond to at least one control circuit. Under the control of the control clock signal, the driving signal generating circuit performs a shift operation on the N-1th level driving signal to obtain the Nth level driving signal. The mth control circuit generates the mth output driving signal according to the Nth level driving signal.
[0150] In at least one embodiment of the present invention, m is equal to 1 or m is equal to 2. However, the present invention is not limited thereto. In actual operation, m may also be an integer greater than 2.
[0151] like Figure 1 As shown, the driving circuit according to at least one embodiment of the present invention includes a driving signal generating circuit 10, an output driving terminal NO (N) and a control circuit; the control circuit includes a gating circuit 11, an output control circuit 12 and an output circuit 13;
[0152] The drive signal generating circuit 10 is electrically connected to the control clock signal terminal NCK, the N-1th level drive signal output terminal NS(N-1) and the Nth level drive signal output terminal NS(N) respectively, and is used for performing a shift operation on the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1) under the control of the control clock signal provided by the control clock signal terminal NCK, so as to obtain and output the Nth level drive signal through the Nth level drive signal output terminal NS(N);
[0153] 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;
[0154] 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 non-AND operation on the N-th level drive signal and the potential of the second end of the output control circuit 12 to obtain a first output signal;
[0155] 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);
[0156] N is a positive integer.
[0157] The present invention Figure 1 The embodiment of the driving circuit shown may be an Nth-stage driving circuit.
[0158] The present invention Figure 1 When the embodiment of the driving circuit shown is working, within one frame time,
[0159] 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;
[0160] 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;
[0161] 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.
[0162] At least one embodiment of the present invention can achieve 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 achieve ultra-low power consumption of OLED (organic light emitting diode) display products such as wearable products, mobile terminals, NB (notebook computers) by partial updating of the display picture.
[0163] like Figure 2 As shown, the driving circuit according to at least one embodiment of the present invention includes a driving signal generating circuit 10, a first output driving terminal NO1 (N), a second output driving terminal NO2 (N), a first control circuit and a second control circuit; the first control circuit includes a first gating circuit 111, a first output control circuit 121 and a first output circuit 131; the second control circuit includes a second gating circuit 112, a second output control circuit 122 and a second output circuit 132;
[0164] The drive signal generating circuit 10 is electrically connected to the control clock signal terminal NCK, the N-1th level drive signal output terminal NS(N-1) and the Nth level drive signal output terminal NS(N) respectively, and is used for performing a shift operation on the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1) under the control of the control clock signal provided by the control clock signal terminal NCK, so as to obtain and output the Nth level drive signal through the Nth level drive signal output terminal NS(N);
[0165] The first gating circuit 111 is electrically connected to the first first node N11, the first gating input terminal VCT1 and the first gating control terminal CX1 respectively, and is used to control the first gating input signal provided by the first gating input terminal VCT1 to be written into the first first node N11 under the control of the first gating control signal provided by the first gating control terminal CX1;
[0166] The first end of the first output control circuit 121 is electrically connected to the N-th level drive signal output terminal NS(N), and the second end of the first output control circuit 121 is electrically connected to the first first node N11, 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 first output control circuit 121 to obtain a first first output signal;
[0167] The first output circuit 131 is electrically connected to the first output control circuit 121 and the first output driving terminal NO1 (N) respectively, and is used to invert the first first output signal to obtain and provide a first output driving signal through the first output driving terminal NO1 (N);
[0168] The second gating circuit 112 is electrically connected to the second first node N21, the second gating input terminal VCT2 and the second gating control terminal CX2 respectively, and is used for controlling the second gating input signal provided by the second gating input terminal VCT2 to be written into the second first node N21 under the control of the second gating control signal provided by the second gating control terminal CX2;
[0169] The first end of the second output control circuit 122 is electrically connected to the N-th level drive signal output terminal NS(N), and the second end of the second output control circuit 122 is electrically connected to the second first node N21, for performing a NAND operation on the N-th level drive signal and the potential of the second end of the second output control circuit 122 to obtain a second first output signal;
[0170] The second output circuit 132 is electrically connected to the second output control circuit 122 and the second output drive terminal NO2 (N) respectively, and is used to invert the second first output signal to obtain and provide a second output drive signal through the second output drive terminal NO2 (N);
[0171] N is a positive integer.
[0172] The present invention Figure 2 The embodiment of the driving circuit shown may be an Nth-stage driving circuit.
[0173] The present invention Figure 2 When the embodiment of the driving circuit shown is working, within one frame time,
[0174] Before the N-th stage driving signal providing stage, the first gating circuit 111 writes the first gating input signal provided by the first gating input terminal VCT1 into the first first node N11 under the control of the first gating control signal; the second gating circuit 112 writes the second gating input signal provided by the second gating input terminal VCT2 into the second first node N21 under the control of the second gating control signal;
[0175] When the first selection input signal is a high voltage signal, in the N-th level driving signal providing stage, the N-th level driving signal output terminal NS(N) outputs a high voltage signal, then the first output signal output by the first output control circuit 121 is a low voltage signal, and the first output circuit 131 provides a high voltage signal through the first output driving terminal NO1(N), which can control the corresponding row pixel circuit to update the pixel voltage;
[0176] When the first selection input signal is a low voltage signal, in the N-th level driving signal providing stage, the N-th level driving signal output terminal NS(N) outputs a high voltage signal, then the first output signal output by the first output control circuit 121 is a high voltage signal, and the first output circuit 131 provides a low voltage signal through the first output driving terminal NO1(N), which can control the corresponding row pixel circuit not to update the pixel voltage;
[0177] When the second selection input signal is a high voltage signal, in the N-th level driving signal providing stage, the N-th level driving signal output terminal NS(N) outputs a high voltage signal, then the second first output signal output by the second output control circuit 122 is a low voltage signal, and the second output circuit 132 provides a high voltage signal through the second output driving terminal NO2(N), which can control the corresponding row pixel circuit to update the pixel voltage;
[0178] When the second selection input signal is a low voltage signal, in the N-th level drive signal providing stage, the N-th level drive signal output terminal NS(N) outputs a high voltage signal, then the second first output signal output by the second output control circuit 122 is a high voltage signal, and the second output circuit 132 provides a low voltage signal through the second output drive terminal NO2(N), which can control the corresponding row pixel circuit not to update the pixel voltage.
[0179] At least one embodiment of the present invention can realize the update of a partial picture of the display screen by controlling the first selection input signal provided by the first selection input terminal VCT1 and the second selection input signal provided by the second selection input terminal VCT2, thereby reducing power consumption, or realize ultra-low power consumption of OLED (organic light emitting diode) display products such as wearable products, mobile terminals, NB (notebook computer) by partial updating of the display picture.
[0180] In at least one embodiment of the present invention, the driving circuit further includes a first inverting circuit;
[0181] The first inversion circuit is electrically connected to the control clock signal terminal and the inverted clock signal terminal respectively, and is used to invert the control clock signal to obtain an inverted clock signal, and output the inverted clock signal through the inverted clock signal terminal;
[0182] The drive signal generating circuit is also electrically connected to the inverted clock signal terminal, and is also used to shift the N-1th level drive signal provided by the N-1th level drive signal output terminal under the control of the inverted clock signal, to obtain and output the Nth level drive signal through the Nth level drive signal output terminal.
[0183] In a specific implementation, the driving circuit may further include a first inverting circuit, which inverts the control clock signal to obtain an inverted clock signal. The driving signal generating circuit, under the control of the control clock signal and the inverted clock signal, performs a shift operation on the N-1th level driving signal to obtain the Nth level driving signal.
[0184] like Figure 3 As shown, in Figure 1 Based on at least one embodiment of the driving circuit shown, the driving circuit further includes a first inverting circuit 31;
[0185] The first inversion circuit 31 is electrically connected to the control clock signal terminal NCK and the inverted clock signal terminal NCKI respectively, and is used to invert the control clock signal to obtain an inverted clock signal, and output the inverted clock signal through the inverted clock signal terminal NCKI;
[0186] The drive signal generating circuit 10 is also electrically connected to the inverted clock signal terminal NCKI, and is also used to shift the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1) under the control of the inverted clock signal, to obtain and output the Nth level drive signal through the Nth level drive signal output terminal NS(N).
[0187] like Figure 4 As shown, in Figure 2 Based on at least one embodiment of the driving circuit shown, the driving circuit further includes a first inverting circuit 31;
[0188] The first inversion circuit 31 is electrically connected to the control clock signal terminal NCK and the inverted clock signal terminal NCKI respectively, and is used to invert the control clock signal to obtain an inverted clock signal, and output the inverted clock signal through the inverted clock signal terminal NCKI;
[0189] The drive signal generating circuit 10 is also electrically connected to the inverted clock signal terminal NCKI, and is also used to shift the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1) under the control of the inverted clock signal, to obtain and output the Nth level drive signal through the Nth level drive signal output terminal NS(N).
[0190] like Figure 5 As shown, 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;
[0191] 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;
[0192] 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;
[0193] 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;
[0194] 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;
[0195] 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;
[0196] 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.
[0197] In a specific implementation, the first reset terminal NR(N) may be the N-1th stage first scan terminal NG(N), but is not limited thereto.
[0198] exist Figure 5 In the related pixel circuit shown, M1 and M2 are n-type transistors, M3, M4, M5, M6 and M7 are all p-type transistors, M1 and M2 are IGZO (indium gallium zinc oxide) TFTs (thin film transistors) with small leakage current, and M3, M4, M5, M6 and M7 are all LTPS (low temperature polycrystalline silicon) TFTs.
[0199] exist Figure 5 In the related pixel circuit shown, M1 and M2 are IGZO TFTs. When using low-frequency display, IGZO TFTs can ensure that Cst can maintain the voltage of the gate of M3 for a longer period of time.
[0200] exist Figure 5 In the related pixel circuit shown, 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, and 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.
[0201] In a specific implementation, 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.
[0202] The driving circuit described in at least one embodiment of the present invention can provide the first scanning terminal NG(N) with the first scanning signal via the output driving terminal NO(N), but the present invention is not limited thereto.
[0203] like Figure 6 As shown, Figure 5 When the related pixel circuit shown is working, 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 arranged successively;
[0204] In the first display control stage t1, 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;
[0205] In the second display control stage t2, 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, and 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;
[0206] In the third display control stage t3, 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.
[0207] It can be known from the above working process of the relevant pixel circuit that 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.
[0208] Figure 7 is a circuit diagram of the related pixel circuit.
[0209] like Figure 7As shown, 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;
[0210] 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;
[0211] 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;
[0212] 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;
[0213] 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;
[0214] 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;
[0215] 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 .
[0216] Figure 7 When the related pixel circuit shown is working, NG(N) can control whether the data voltage Vdata on the data line D1 is written into the gate of the driving transistor M3.
[0217] In specific implementation, 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. In summary, 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.
[0218] Optionally, the mth selection circuit is used to control the writing of the mth selection input signal provided by the mth selection input terminal into the mth 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.
[0219] In a specific implementation, the mth gating circuit can control the writing of the mth gating input signal into the mth 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.
[0220] Optionally, the first voltage may be a high voltage, and the second voltage may be a low voltage, but the present invention is not limited thereto. In at least one embodiment of the present invention, the first voltage may also be a low voltage, and the second voltage may be a high voltage.
[0221] Optionally, the mth gating control terminal includes an mth first control terminal, an mth second control terminal, an mth third control terminal and an mth fourth control terminal, and the mth gating circuit includes an mth first gating transistor, an mth second gating transistor, an mth third gating transistor and an mth fourth gating transistor;
[0222] The gate of the mth first selection transistor is electrically connected to the mth first control terminal, and the first electrode of the mth first selection transistor is electrically connected to the mth selection input terminal;
[0223] The gate of the mth second selection transistor is electrically connected to the mth second control terminal, and the first electrode of the mth second selection transistor is electrically connected to the mth selection input terminal;
[0224] The gate of the mth third selection transistor is electrically connected to the mth third control terminal, the first electrode of the mth third selection transistor is electrically connected to the second electrode of the mth first selection transistor, and the second electrode of the mth third selection transistor is electrically connected to the mth first node;
[0225] The gate of the mth fourth selection transistor is electrically connected to the mth fourth control terminal, the first electrode of the mth fourth selection transistor is electrically connected to the second electrode of the mth second selection transistor, and the second electrode of the mth fourth selection transistor is electrically connected to the mth first node;
[0226] The mth first selection transistor is a p-type transistor, the mth second selection transistor is an n-type transistor, the mth third selection transistor is a p-type transistor, and the mth fourth selection transistor is an n-type transistor;
[0227] The mth first control terminal is connected to the inverted signal of the N-1th level drive signal, the mth second control terminal is the N-1th level drive signal output terminal, the mth third control terminal is the Nth level drive signal output terminal, and the mth fourth control terminal is connected to the inverted signal of the Nth level drive signal; or, the mth first control terminal is connected to the inverted signal of the Nth level drive signal, the mth second control terminal is the Nth level drive signal output terminal, the mth third control terminal is the N-1th level drive signal output terminal, and the mth fourth control terminal is connected to the inverted signal of the N-1th level drive signal.
[0228] like Figure 8 As shown, the gating control terminal may include a first control terminal CT1, a second control terminal CT2, a third control terminal CT3 and a fourth control terminal CT4, and at least one embodiment of the gating circuit may include a first gating transistor TX1, a second gating transistor TX2, a third gating transistor TX3 and a fourth gating transistor TX4;
[0229] The gate of the first selection transistor TX1 is electrically connected to the first control terminal CT1, and the drain of the first selection transistor TX1 is electrically connected to the selection input terminal VCT;
[0230] The gate of the second selection transistor TX2 is electrically connected to the second control terminal CT2, and the drain of the second selection transistor TX2 is electrically connected to the selection input terminal VCT;
[0231] The gate of the third selection transistor TX3 is electrically connected to the third control terminal CT3, the drain of the third selection transistor TX3 is electrically connected to the source of the first selection transistor TX1, and the source of the third selection transistor TX3 is electrically connected to the first node N1;
[0232] The gate of the fourth selection transistor TX4 is electrically connected to the fourth control terminal CT4, the drain of the fourth selection transistor TX4 is electrically connected to the source of the second selection transistor TX2, and the source of the fourth selection transistor TX4 is electrically connected to the first node N1;
[0233] The first selection transistor TX1 is a p-type transistor, the second selection transistor TX2 is an n-type transistor, the third selection transistor TX3 is a p-type transistor, and the fourth selection transistor TX4 is an n-type transistor;
[0234] The first control terminal CT1 can be connected to the inverted signal of the N-1th level drive signal, the second control terminal CT2 can be the N-1th level drive signal output terminal, the third control terminal CT3 can be the N-level drive signal output terminal, and the fourth control terminal CT4 can be connected to the inverted signal of the N-1th level drive signal; or, the first control terminal CT1 can be connected to the inverted signal of the N-1th level drive signal, the second control terminal CT2 can be the N-1th level drive signal output terminal, the third control terminal CT3 can be the N-1th level drive signal output terminal, and the fourth control terminal CT4 can be connected to the inverted signal of the N-1th level drive signal.
[0235] In at least one embodiment of the present invention, the second electrode of the mth first selection transistor is electrically connected to the second electrode of the mth second selection transistor.
[0236] like Fig. 9 As shown, in Figure 8 According to at least one embodiment of the gating circuit shown, a source of the first gating transistor TX1 is electrically connected to a source of the second gating transistor TX2 .
[0237] Optionally, the mth gating circuit includes an mth first gating transistor;
[0238] The gate of the mth first selection transistor is electrically connected to the mth selection control terminal, the first electrode of the mth first selection transistor is electrically connected to the mth first node, and the second electrode of the mth first selection transistor is electrically connected to the mth selection input terminal.
[0239] like Fig.10 As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1;
[0240] The gate of the first gate transistor TX1 is electrically connected to the gate control terminal S0, the drain of the first gate transistor TX1 is electrically connected to the first node N1, and the source of the first gate transistor TX1 is electrically connected to the gate input terminal VCT;
[0241] TX1 is a p-type transistor.
[0242] like Fig.11 As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1;
[0243] The gate of the first gate transistor TX1 is electrically connected to the gate control terminal S0, the source of the first gate transistor TX1 is electrically connected to the first node N1, and the drain of the first gate transistor TX1 is electrically connected to the gate input terminal VCT;
[0244] TX1 is an n-type transistor.
[0245] Optionally, the mth gating control terminal includes an mth first control terminal and an mth second control terminal; the mth gating circuit includes an mth first gating transistor and an mth second gating transistor;
[0246] The gate of the mth first selection transistor is electrically connected to the mth first control terminal, the first electrode of the mth first selection transistor is electrically connected to the mth first node, and the second electrode of the mth first selection transistor is electrically connected to the first electrode of the mth second selection transistor;
[0247] The gate of the mth second selection transistor is electrically connected to the mth second control terminal, and the second electrode of the mth second selection transistor is electrically connected to the mth selection input terminal;
[0248] The mth first control terminal is the N-1th level drive signal output terminal, the mth second control terminal is the Nth level drive signal output terminal, the mth first selection transistor is an n-type transistor, and the mth second selection transistor is a p-type transistor; or,
[0249] The mth first control terminal is the Nth level drive signal output terminal, the mth second control terminal is the N-1th level drive signal output terminal, the mth first selection transistor is a p-type transistor, and the mth second selection transistor is an n-type transistor; or,
[0250] The mth first control terminal is connected to the inverted signal of the N-1th level driving signal, the mth second control terminal is the Nth level driving signal output terminal, and the mth first selection transistor and the mth second selection transistor are both p-type transistors; or,
[0251] The mth first control terminal is an output terminal of the Nth level driving signal, and the mth second control terminal is connected to the inverted signal of the N-1th level driving signal; the mth first selection transistor and the mth second selection transistor are both p-type transistors; or,
[0252] The mth first control terminal is the N-1th level driving signal terminal, the mth second control terminal is connected to the inverted signal of the Nth level driving signal, and the mth first selection transistor and the mth second selection transistor are both n-type transistors; or,
[0253] The mth first control terminal is connected to the inverted signal of the Nth level driving signal, the mth second control terminal is the N-1th level driving signal terminal, and the mth first selection transistor and the mth second selection transistor are both n-type transistors.
[0254] like Fig.12As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1 and a second gating transistor TX2;
[0255] The gate of the first pass transistor TX1 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the source of the first pass transistor TX1 is electrically connected to the first node N1, and the drain of the first pass transistor TX1 is electrically connected to the drain of the second pass transistor TX2;
[0256] The gate of the second selection transistor TX2 is electrically connected to the N-th stage driving signal output terminal NS(N), and the source of the second selection transistor TX2 is electrically connected to the selection input terminal VCT;
[0257] TX1 is an n-type transistor and TX2 is a p-type transistor.
[0258] like Fig.13 As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1 and a second gating transistor TX2;
[0259] The gate of the first selection transistor TX1 is electrically connected to the N-th stage driving signal output terminal NS(N), the drain of the first selection transistor TX1 is electrically connected to the first node N1, and the source of the first selection transistor TX1 is electrically connected to the source of the second selection transistor T2;
[0260] The gate of the second selection transistor TX2 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the drain of the second selection transistor TX2 is electrically connected to the selection input terminal VCT;
[0261] TX1 is a p-type transistor and TX2 is an n-type transistor.
[0262] like Fig.14 As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1 and a second gating transistor TX2;
[0263] The gate of the first gate transistor TX1 is electrically connected to the first inverted drive signal terminal NGI1, the drain of the first gate transistor TX1 is electrically connected to the first node N1, and the source of the first gate transistor TX1 is electrically connected to the drain of the second gate transistor TX2; the first inverted drive signal provided by the first inverted drive signal terminal NGI1 is inverted with the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1);
[0264] The gate of the second selection transistor TX2 is electrically connected to the N-th stage driving signal output terminal NS(N), and the source of the second selection transistor TX2 is electrically connected to the selection input terminal VCT;
[0265] TX1 is a p-type transistor, and TX2 is a p-type transistor.
[0266] like Fig.15 As shown, at least one embodiment of the gating circuit may include a first transistor TX1 and a second transistor TX2;
[0267] The gate of the first pass transistor TX1 is electrically connected to the N-th stage driving signal output terminal NS(N), the drain of the first pass transistor TX1 is electrically connected to the first node N1, and the source of the first pass transistor TX1 is electrically connected to the drain of the second pass transistor TX2;
[0268] The gate of the second gate transistor TX2 is electrically connected to the first inverted drive signal terminal NGI1, and the source of the second gate transistor TX2 is electrically connected to the gate input terminal VCT; the first inverted drive signal provided by the first inverted drive signal terminal NGI1 is inverted with the N-1th level drive signal provided by the N-1th level drive signal output terminal NS(N-1);
[0269] TX1 is a p-type transistor, and TX2 is a p-type transistor.
[0270] like Fig.16 As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1 and a second gating transistor TX2;
[0271] The gate of the first selection transistor TX1 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the source of the first selection transistor TX1 is electrically connected to the first node N1, and the drain of the first selection transistor TX1 is electrically connected to the source of the second selection transistor TX2;
[0272] The gate of the second gate transistor TX2 is electrically connected to the second inverted drive signal terminal NGI2, and the drain of the second gate transistor TX2 is electrically connected to the gate input terminal VCT; the second inverted drive signal provided by the second inverted drive signal terminal NGI2 is inverted with the N-th level drive signal provided by the N-th level drive signal output terminal NS(N);
[0273] TX1 is an n-type transistor, and TX2 is an n-type transistor.
[0274] like Fig.17 As shown, at least one embodiment of the gating circuit may include a first gating transistor TX1 and a second gating transistor TX2;
[0275] The gate of the first gate transistor TX1 is electrically connected to the second inverted drive signal terminal NGI2, the source of the first gate transistor TX1 is electrically connected to the first node N1, and the drain of the first gate transistor TX1 is electrically connected to the source of the second gate transistor TX2; the second inverted drive signal provided by the second inverted drive signal terminal NGI2 is inverted with the N-th level drive signal provided by the N-th level drive signal output terminal NS(N);
[0276] The gate of the second selection transistor TX2 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the drain of the second selection transistor TX2 is electrically connected to the selection input terminal VCT;
[0277] TX1 is an n-type transistor, and TX2 is an n-type transistor.
[0278] like Fig.18 As shown, 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 inversion module to obtain the first inverted driving signal provided by the first inverted driving signal terminal NGI1;
[0279] The first inversion module includes a first inversion control transistor T01 and a second inversion control transistor T02;
[0280] T01 is a p-type transistor, and T02 is an n-type transistor.
[0281] like Fig.19 As shown, the N-th level driving signal provided by the N-th level driving signal output terminal NS(N) can be inverted by the second inversion module to obtain the second inverted driving signal provided by the second inverted driving signal terminal NGI2;
[0282] The second inversion module includes a third inversion control transistor T03 and a fourth inversion control transistor T04;
[0283] T03 is a p-type transistor, and T04 is an n-type transistor.
[0284] In at least one embodiment of the present invention, the mth control circuit further includes an mth first initialization circuit;
[0285] The mth first initialization circuit is electrically connected to the initial control terminal, the first voltage terminal and the mth first node respectively, and is used to control the connection between the mth first node and the first voltage terminal under the control of the initial control signal provided by the initial control terminal.
[0286] In a specific implementation, the mth control circuit may further include an mth first initialization circuit, and the mth first initialization circuit controls the connection between the mth first node and the first voltage terminal under the control of an initial control signal.
[0287] In at least one embodiment of the present invention, the first voltage terminal may be a high voltage terminal, but is not limited thereto.
[0288] like Fig. 20 As shown, in Figure 3 Based on at least one embodiment of the driving circuit shown, the control circuit may further include a first initialization circuit 21;
[0289] 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.
[0290] Fig. 20 When at least one embodiment of the driving circuit shown is in operation, at the beginning of a frame time, NCX provides a valid voltage signal, and the first initialization circuit 21 controls the first node N1 to be connected to the first voltage terminal V1.
[0291] like Fig.21 As shown, in Figure 4 Based on at least one embodiment of the driving circuit shown, the first control circuit may further include a first first initialization circuit 211, and the second control circuit may further include a second first initialization circuit 212;
[0292] The first first initialization circuit 211 is electrically connected to the initial control terminal NCX, the first voltage terminal V1 and the first first node N11 respectively, and is used to control the connection between the first first node N11 and the first voltage terminal V1 under the control of the initial control signal provided by the initial control terminal NCX;
[0293] The second first initialization circuit 212 is electrically connected to the initial control terminal NCX, the first voltage terminal V1 and the second first node N21 respectively, and is used to control the connection between the second first node N21 and the first voltage terminal V1 under the control of the initial control signal provided by the initial control terminal NCX.
[0294] In at least one embodiment of the present invention, the mth control circuit further includes an mth reset circuit;
[0295] The mth reset circuit is electrically connected to the first voltage terminal, the N-1th level drive signal output terminal, the N-1th level drive signal output terminal and the mth first node, respectively, and is used to control the connection between the mth first node and the first voltage terminal under the control of the N-1th level drive signal and the N-1th level drive signal provided by the N-1th level drive signal output terminal.
[0296] In a specific implementation, the mth control circuit may further include an mth reset circuit, which, under the control of the Nth level drive signal and the N-1th level drive signal, resets the potential of the mth first node after the mth output circuit provides the mth output drive signal through the mth output drive terminal.
[0297] In at least one embodiment of the present invention, the mth control circuit further includes an mth first voltage maintaining circuit;
[0298] The first end of the mth first voltage maintaining circuit is electrically connected to the mth first node, the second end of the mth first voltage maintaining circuit is electrically connected to the DC voltage end, and the mth voltage maintaining circuit is used to maintain the potential of the mth first node.
[0299] In a specific implementation, the m-th control circuit may further include an m-th first voltage maintaining circuit, and the m-th first voltage maintaining circuit may be used to maintain the potential of the m-th first node.
[0300] Optionally, the DC voltage terminal may be a first voltage terminal, a second voltage terminal or a third voltage terminal, but is not limited thereto.
[0301] In at least one embodiment of the present invention, the first voltage terminal may be a high voltage terminal, the second voltage terminal may be a first low voltage terminal, and the third voltage terminal may be a second low voltage terminal, but the present invention is not limited thereto.
[0302] like Fig. 22 As shown, in Fig. 20 Based on at least one embodiment of the driving circuit shown, the control circuit may further include a first voltage maintaining circuit 22 and a reset circuit 23;
[0303] The reset circuit 23 is electrically connected to the first voltage terminal V1, the N-1-th level drive signal output terminal NS(N-1), the N-th level drive signal output terminal NS(N) and the first node N1 respectively, and is used to control the first node N1 to be connected to the first voltage terminal V1 under the control of the N-1-th level drive signal and the N-1-th level drive signal provided by the N-1-th level drive signal output terminal NS(N-1);
[0304] 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 a second voltage terminal V2 , and the first voltage maintaining circuit 22 is used to maintain the potential of the first node N1 .
[0305] like Fig.23 As shown, in Fig.21 Based on at least one embodiment of the driving circuit shown, the first control circuit may further include a first first voltage maintaining circuit 221 and a first reset circuit 231; the second control circuit may further include a second first voltage maintaining circuit 222 and a second reset circuit 232;
[0306] The first reset circuit 231 is electrically connected to the first voltage terminal V1, the N-1-th level drive signal output terminal NS(N-1), the N-th level drive signal output terminal NS(N) and the first first node N11 respectively, and is used to control the first first node N11 to be connected to the first voltage terminal V1 under the control of the N-1-th level drive signal and the N-1-th level drive signal provided by the N-1-th level drive signal output terminal NS(N-1);
[0307] The first end of the first first voltage maintaining circuit 221 is electrically connected to the first first node N11, the second end of the first first voltage maintaining circuit 221 is electrically connected to the second voltage terminal V2, and the first first voltage maintaining circuit 221 is used to maintain the potential of the first first node N11;
[0308] The second reset circuit 232 is electrically connected to the first voltage terminal V1, the N-1-th level drive signal output terminal NS(N-1), the N-th level drive signal output terminal NS(N) and the second first node N21 respectively, and is used to control the second first node N21 to be connected to the first voltage terminal V1 under the control of the N-1-th level drive signal and the N-1-th level drive signal provided by the N-1-th level drive signal output terminal NS(N-1);
[0309] The first end of the second first voltage maintaining circuit 222 is electrically connected to the second first node N21, the second end of the second first voltage maintaining circuit 222 is electrically connected to the second voltage terminal V2, and the second first voltage maintaining circuit 222 is used to maintain the potential of the second first node N21.
[0310] Optionally, the m-th control circuit further includes an m-th second voltage maintaining circuit; the m-th first node is electrically connected to the second end of the m-th output control circuit through the m-th second voltage maintaining circuit;
[0311] The mth second voltage maintaining circuit comprises an mth first inverter, an mth second inverter and an mth maintaining control circuit;
[0312] The input end of the mth first inverter is electrically connected to the mth first node, the output end of the mth first inverter is electrically connected to the mth second node, the input end of the mth second inverter is electrically connected to the mth second node, and the output end of the mth second inverter is electrically connected to the mth third node and the second end of the mth output control circuit;
[0313] The mth first inverter is used to invert the potential of the mth first node, and output the inverted potential of the mth first node through the output end of the mth first inverter, and the mth second inverter is used to invert the potential of its input end, and output the inverted potential through the output end of the mth second inverter;
[0314] The mth maintenance control circuit is electrically connected to the mth maintenance control terminal, the mth third node and the mth first node respectively, and is used to control the connection or disconnection between the mth third node and the mth first node under the control of the mth maintenance control signal provided by the mth maintenance control terminal.
[0315] In a specific implementation, the mth control circuit may further include an mth second voltage maintaining circuit, the mth first node may be electrically connected to the second end of the mth output control circuit through the mth second voltage maintaining circuit, and the mth second voltage maintaining circuit may include an mth first inverter, an mth second inverter and an mth maintenance control circuit; the mth first inverter inverts the potential of the mth first node, and the mth second inverter inverts the potential of its input end; the mth maintenance control circuit controls the connection or disconnection between the mth third node and the mth first node under the control of the maintenance control signal provided by the mth maintenance control end;
[0316] The mth sustain control circuit may control the mth third node to be disconnected from the mth first node when the mth gating circuit controls the mth gating input signal to be written into the mth first node.
[0317] When the driving circuit described in at least one embodiment of the present invention is working, by adding an mth second voltage maintaining circuit, the mth first inverter and the mth second inverter included in the mth second voltage maintaining circuit can control the connection between the mth third node and the high voltage end when the potential of the mth first node is a high voltage, so that the potential of the mth third node can be higher than the potential of the mth first node, and can control the connection between the mth third node and the low voltage end when the potential of the mth first node is a low voltage, so that the potential of the mth third node can be lower than the potential of the mth first node, so that the mth third node can better control the transistor whose gate is electrically connected to the mth third node included in the mth output control circuit.
[0318] like Fig.24 As shown, in Fig. 22 Based on at least one embodiment of the driving circuit shown in the figure, the control circuit may further include a second voltage maintaining circuit; the maintaining control terminal includes the N-1th level driving signal output terminal NS(N-1) and the control clock signal terminal NCK; the first node N1 is electrically connected to the second terminal of the output control circuit 12 through the second voltage maintaining circuit;
[0319] The second voltage maintaining circuit includes a first inverter F1, a second inverter F2 and a maintaining control circuit W1;
[0320] 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;
[0321] 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;
[0322] The first inverter F1 is used to invert the potential of the first node N1, and output the inverted potential of the first node N1 through the output end of the first inverter F1;
[0323] 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;
[0324] The maintenance control circuit W1 is electrically connected to the N-1th level drive signal output terminal NS(N-1), the control clock signal terminal NCK, 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 control clock signal provided by the control clock signal terminal NCK.
[0325] exist Fig.24 In at least one embodiment shown, the N-1th stage driving signal output terminal may be replaced by an inverted clock signal terminal or a first clock signal terminal, but the present invention is not limited thereto.
[0326] Fig.25 The waveform of the control clock signal provided by the control clock signal terminal NCK and the waveform of the first clock signal provided by the first clock signal terminal NCB are shown.
[0327] In at least one embodiment of the present invention, the driving signal generating circuit includes a first driving control circuit, a second driving control circuit, a second inverting circuit, and a second initialization circuit;
[0328] The first drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the N-1th level drive signal output terminal and the fourth 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 control clock signal provided by the control clock signal terminal and the inverted clock signal provided by the inverted clock signal terminal, and obtain and output the inverted signal through the fourth node;
[0329] The second drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the Nth level drive signal output terminal and the fourth node respectively, and is used to invert the Nth level drive signal provided by the Nth level drive signal output terminal under the control of the control clock signal and the inverted clock signal, and obtain and output the inverted signal through the fourth node;
[0330] The second inverting circuit is electrically connected to the fourth node and the Nth level driving signal output terminal respectively, and is used to invert the potential of the fourth node and output the inverted signal through the Nth level driving signal output terminal;
[0331] 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.
[0332] In at least one embodiment of the present invention, when M is equal to 1, the control circuit may include a first voltage maintaining circuit and / or a second voltage maintaining circuit to maintain the potential of the first node;
[0333] When M is greater than 1, the m-th control circuit may include an m-th first voltage maintaining circuit and / or an m-th second voltage maintaining circuit to maintain the potential of the m-th first node.
[0334] Optionally, the mth reset circuit includes an mth first transistor and an mth second transistor;
[0335] The gate of the mth first transistor is electrically connected to the N-1th stage driving signal output terminal, the first electrode of the mth first transistor is electrically connected to the first voltage terminal, and the second electrode of the mth first transistor is electrically connected to the first electrode of the mth second transistor;
[0336] A gate electrode of the mth second transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the mth second transistor is electrically connected to the mth first node.
[0337] Optionally, the mth maintenance control terminal includes an mth first maintenance control terminal and an mth second maintenance control terminal;
[0338] The mth sustain control circuit comprises an mth third transistor and an mth fourth transistor;
[0339] The gate of the mth third transistor is electrically connected to the mth first sustain control terminal, the first electrode of the mth third transistor is electrically connected to the mth first node, and the second electrode of the mth third transistor is electrically connected to the mth third node;
[0340] The gate of the mth fourth transistor is electrically connected to the mth second sustain control terminal, the first electrode of the mth fourth transistor is electrically connected to the mth third node, and the second electrode of the mth fourth transistor is electrically connected to the mth first node;
[0341] The mth third transistor is a p-type transistor, and the mth fourth transistor is an n-type transistor;
[0342] The mth first sustain control terminal is the N-1th level driving signal terminal, and the mth second sustain control terminal is the control clock signal terminal; or,
[0343] The mth first sustain control terminal is an inverted clock signal terminal, and the mth second sustain control terminal is a control clock signal terminal.
[0344] Optionally, the mth first inverter includes an mth fifth transistor and an mth sixth transistor, and the mth second inverter includes an mth seventh transistor and an mth eighth transistor;
[0345] The gate of the mth fifth transistor is electrically connected to the mth first node, the first electrode of the mth fifth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth fifth transistor is electrically connected to the mth second node;
[0346] The gate of the mth sixth transistor is electrically connected to the mth first node, the first electrode of the mth sixth transistor is electrically connected to the mth second node, and the second electrode of the mth sixth transistor is electrically connected to the second voltage terminal;
[0347] The mth fifth transistor is a p-type transistor, and the mth sixth transistor is an n-type transistor;
[0348] A gate of the mth seventh transistor is electrically connected to the mth second node, a first electrode of the mth seventh transistor is electrically connected to the first voltage terminal, and a second electrode of the mth seventh transistor is electrically connected to the mth third node;
[0349] The gate of the mth eighth transistor is electrically connected to the mth second node, the first electrode of the mth eighth transistor is electrically connected to the mth third node, and the second electrode of the mth eighth transistor is electrically connected to the second voltage terminal;
[0350] The mth seventh transistor is a p-type transistor, and the mth eighth transistor is an n-type transistor.
[0351] Optionally, the mth first initialization circuit includes an mth ninth transistor;
[0352] The gate of the mth ninth transistor is electrically connected to the initial control terminal, the first electrode of the mth ninth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth ninth transistor is electrically connected to the mth first node.
[0353] Optionally, the mth first voltage maintaining circuit includes an mth capacitor;
[0354] The first end of the m-th capacitor is electrically connected to the m-th first node, and the second end of the m-th capacitor is electrically connected to a DC voltage terminal.
[0355] Optionally, the mth output control circuit includes an mth tenth transistor, an mth eleventh transistor, an mth twelfth transistor and an mth thirteenth transistor;
[0356] The gate of the mth tenth transistor is electrically connected to the mth first node, the first electrode of the mth tenth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth tenth transistor is electrically connected to the mth second node;
[0357] The gate of the mth eleventh transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the mth eleventh transistor is electrically connected to the first voltage terminal, and the second electrode of the mth eleventh transistor is electrically connected to the mth second node;
[0358] A gate of the mth twelfth transistor is electrically connected to the mth first node, a first electrode of the mth twelfth transistor is electrically connected to the mth second node, and a second electrode of the mth twelfth transistor is electrically connected to a first electrode of the mth thirteenth transistor;
[0359] The gate of the mth thirteenth transistor is electrically connected to the N-level driving signal output terminal, and the second electrode of the mth thirteenth transistor is electrically connected to the second voltage terminal;
[0360] The m-th tenth transistor and the m-th eleventh transistor are p-type transistors, and the m-th twelfth transistor and the m-th thirteenth transistor are n-type transistors.
[0361] Optionally, the m-th output circuit includes an m-th fourteenth transistor and an m-th fifteenth transistor;
[0362] The gate of the m-th fourteenth transistor is electrically connected to the m-th second node, the first electrode of the m-th fourteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the m-th fourteenth transistor is electrically connected to the m-th output driving terminal;
[0363] The gate of the mth fifteenth transistor is electrically connected to the mth second node, the first electrode of the mth fifteenth transistor is electrically connected to the mth output driving terminal, and the second electrode of the mth fifteenth transistor is electrically connected to the second voltage terminal.
[0364] In at least one embodiment of the present invention, the driving signal generating circuit includes a first driving control circuit, a second driving control circuit, a second inverting circuit, and a second initialization circuit;
[0365] The first drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the N-1th level drive signal output terminal and the fourth 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 control clock signal provided by the control clock signal terminal and the inverted clock signal provided by the inverted clock signal terminal, and obtain and output the inverted signal through the fourth node;
[0366] The second drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the Nth level drive signal output terminal and the fourth node respectively, and is used to invert the Nth level drive signal provided by the Nth level drive signal output terminal under the control of the control clock signal and the inverted clock signal, and obtain and output the inverted signal through the fourth node;
[0367] The second inverting circuit is electrically connected to the fourth node and the Nth level driving signal output terminal respectively, and is used to invert the potential of the fourth node and output the inverted signal through the Nth level driving signal output terminal;
[0368] 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.
[0369] In a specific implementation, the drive signal generating circuit may include a first drive control circuit, a second drive control circuit, a second inverting circuit and a second initialization circuit; the first drive control circuit shifts and inverts the N-1th drive signal under the control of a control clock signal and an inverted clock signal, and outputs the inverted signal through a fourth node; the second drive control circuit inverts the Nth level drive signal under the control of a control clock signal and an inverted clock signal, and outputs the inverted signal through a fourth node; the second inverting circuit inverts the potential of the fourth node, and outputs the inverted signal through an 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.
[0370] like Fig.26 As shown, in Fig.24 Based on at least one embodiment of the driving circuit shown, the driving signal generating circuit may include a first driving control circuit 41, a second driving control circuit 42, a second inverting circuit 44 and a second initialization circuit 40;
[0371] The first drive control circuit 41 is electrically connected to the control clock signal terminal NCK, the inverted clock signal terminal NCKI, the N-1th level drive signal output terminal NS(N-1) and the fourth node N4 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 control clock signal provided by the control clock signal terminal NCK and the inverted clock signal provided by the inverted clock signal terminal NCKI, and obtain and output the inverted signal through the fourth node N4;
[0372] The second drive control circuit 42 is electrically connected to the control clock signal terminal NCK, the inverted clock signal terminal NCKI, the N-th level drive signal output terminal NS(N) and the fourth node N4, respectively, and is used to invert the N-th level drive signal provided by the N-th level drive signal output terminal NS(N) under the control of the control clock signal and the inverted clock signal, and obtain and output the inverted signal through the fourth node N4;
[0373] The second inverting circuit 44 is electrically connected to the fourth node N4 and the N-th level driving signal output terminal NS(N) respectively, and is used to invert the potential of the fourth node N4 and output the inverted signal through the N-th level driving signal output terminal NS(N);
[0374] The second initialization circuit 40 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.
[0375] like Fig. 27 As shown, in Fig.23 Based on at least one embodiment of the driving circuit shown, the driving signal generating circuit may include a first driving control circuit 41, a second driving control circuit 42, a second inverting circuit 44 and a second initialization circuit 40;
[0376] The first drive control circuit 41 is electrically connected to the control clock signal terminal NCK, the inverted clock signal terminal NCKI, the N-1th level drive signal output terminal NS(N-1) and the fourth node N4 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 control clock signal provided by the control clock signal terminal NCK and the inverted clock signal provided by the inverted clock signal terminal NCKI, and obtain and output the inverted signal through the fourth node N4;
[0377] The second drive control circuit 42 is electrically connected to the control clock signal terminal NCK, the inverted clock signal terminal NCKI, the N-th level drive signal output terminal NS(N) and the fourth node N4, respectively, and is used to invert the N-th level drive signal provided by the N-th level drive signal output terminal NS(N) under the control of the control clock signal and the inverted clock signal, and obtain and output the inverted signal through the fourth node N4;
[0378] The second inverting circuit 44 is electrically connected to the fourth node N4 and the N-th level driving signal output terminal NS(N) respectively, and is used to invert the potential of the fourth node N4 and output the inverted signal through the N-th level driving signal output terminal NS(N);
[0379] The second initialization circuit 40 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.
[0380] Fig.28 At least one embodiment of the driving circuit shown is Fig.26 The difference of at least one embodiment of the driving circuit shown is that the second voltage maintaining circuit is not included.
[0381] Optionally, the first drive control circuit includes a sixteenth transistor, a seventeenth transistor, an eighteenth transistor and a nineteenth transistor;
[0382] The gate of the sixteenth transistor is electrically connected to the inverted 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;
[0383] 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 fourth node;
[0384] 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 fourth node, and the second electrode of the eighteenth transistor is electrically connected to the first electrode of the nineteenth transistor;
[0385] The gate of the nineteenth transistor is electrically connected to the control clock signal terminal, and the second electrode of the nineteenth transistor is electrically connected to the third voltage terminal;
[0386] The sixteenth transistor and the seventeenth transistor are p-type transistors, and the eighteenth transistor and the nineteenth transistor are n-type transistors.
[0387] Optionally, the second drive control circuit includes a twentieth transistor, a twenty-first transistor, a twenty-second transistor and a twenty-third transistor;
[0388] The gate of the 20th transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the 20th transistor is electrically connected to the first voltage terminal, and the second electrode of the 20th transistor is electrically connected to the first electrode of the 21st transistor;
[0389] A gate of the twenty-first transistor is electrically connected to the control clock signal terminal, and a second electrode of the twenty-first transistor is electrically connected to the fourth node;
[0390] A gate of the 22nd transistor is electrically connected to the inverted clock signal terminal, a first electrode of the 22nd transistor is electrically connected to the fourth node, and a second electrode of the 22nd transistor is electrically connected to a first electrode of the 23rd transistor;
[0391] A gate of the twenty-third transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the twenty-third transistor is electrically connected to the third voltage terminal;
[0392] The 20th transistor and the 21st transistor are p-type transistors, and the 22nd transistor and the 23rd transistor are n-type transistors.
[0393] Optionally, the second inverting circuit includes a twenty-fourth transistor and a twenty-fifth transistor; the second initializing circuit includes a twenty-sixth transistor;
[0394] The gate of the 24th transistor is electrically connected to the fourth node, the first electrode of the 24th transistor is electrically connected to the first voltage terminal, and the second electrode of the 24th transistor is electrically connected to the first electrode of the 25th transistor and the Nth stage driving signal output terminal;
[0395] A gate of the twenty-fifth transistor is electrically connected to the fourth node, and a second electrode of the twenty-fifth transistor is electrically connected to the third voltage terminal;
[0396] The twenty-fourth transistor is a p-type transistor, and the twenty-fifth transistor is an n-type transistor;
[0397] 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.
[0398] Optionally, the first inverting circuit includes a twenty-seventh transistor and a twenty-eighth transistor;
[0399] The gate of the twenty-seventh transistor is electrically connected to the control clock signal terminal, the first electrode of the twenty-seventh transistor is electrically connected to the first voltage terminal, and the second electrode of the twenty-seventh transistor is electrically connected to the first electrode of the twenty-eighth transistor and the inverted clock signal terminal;
[0400] A gate of the twenty-eighth transistor is electrically connected to the control clock signal terminal, and a second electrode of the twenty-eighth transistor is electrically connected to the third voltage terminal.
[0401] like Fig.29 As shown, in Fig.28 Based on at least one embodiment of the driving circuit shown,
[0402] The gating control terminal includes a first control terminal, a second control terminal, a third control terminal and a fourth control terminal, and the gating circuit includes a first gating transistor TX1, a second gating transistor TX2, a third gating transistor TX3 and a fourth gating transistor TX4;
[0403] The gate of the first selection transistor TX1 is electrically connected to the first control terminal, and the drain of the first selection transistor TX1 is electrically connected to the selection input terminal VCT;
[0404] The gate of the second selection transistor TX2 is electrically connected to the second control terminal, and the drain of the second selection transistor TX2 is electrically connected to the selection input terminal VCT;
[0405] The gate of the third selection transistor TX3 is electrically connected to the third control terminal, the drain of the third selection transistor TX3 is electrically connected to the source of the first selection transistor TX1, and the source of the third selection transistor TX3 is electrically connected to the first node N1;
[0406] The gate of the fourth selection transistor TX4 is electrically connected to the fourth control terminal, the drain of the fourth selection transistor TX4 is electrically connected to the source of the second selection transistor TX2, and the source of the fourth selection transistor TX4 is electrically connected to the first node N1;
[0407] The first selection transistor TX1 is a p-type transistor, the second selection transistor TX2 is an n-type transistor, the third selection transistor TX3 is a p-type transistor, and the fourth selection transistor TX4 is an n-type transistor;
[0408] The first control terminal is connected to the inverted signal NSI(N-1) of the N-1th level drive signal, the second control terminal is the N-1th level drive signal output terminal NS(N-1), the third control terminal is the Nth level drive signal output terminal NS(N), and the fourth control terminal is connected to the inverted signal NSI(N) of the Nth level drive signal;
[0409] The reset circuit includes a first transistor T1 and a second transistor T2;
[0410] The gate of the first transistor T1 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the drain of the first transistor T1 is electrically connected to the high voltage terminal VGHN, and the source of the first transistor T1 is electrically connected to the drain of the second transistor T2;
[0411] 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 first node N1;
[0412] T1 and T2 are p-type transistors;
[0413] The first initialization circuit includes a ninth transistor T9;
[0414] The gate of the ninth transistor T9 is electrically connected to the initial control terminal NCX, the drain of the ninth transistor T9 is electrically connected to the high voltage terminal VGHN, and the source of the ninth transistor T9 is electrically connected to the first node N1;
[0415] T9 is a p-type transistor;
[0416] The first voltage maintaining circuit includes a capacitor C0;
[0417] The first end of the capacitor C0 is electrically connected to the first node N1, and the second end of the capacitor C0 is electrically connected to the first low voltage end VGL;
[0418] The output control circuit includes a tenth transistor T10, an eleventh transistor T11, a twelfth transistor T12 and a thirteenth transistor T13;
[0419] The gate of the tenth transistor T10 is electrically connected to the first node N1, the drain of the tenth transistor T10 is electrically connected to the high voltage terminal VGHN, and the source of the tenth transistor T10 is electrically connected to the second node N2;
[0420] The gate of the eleventh transistor T11 is electrically connected to the N-th stage driving signal output terminal NS(N), the drain of the eleventh transistor T11 is electrically connected to the high voltage terminal VGHN, and the source of the eleventh transistor T11 is electrically connected to the second node N2;
[0421] The gate of the twelfth transistor T12 is electrically connected to the first node N1, the drain of the twelfth transistor T12 is electrically connected to the second node N2, and the source of the twelfth transistor T12 is electrically connected to the drain of the thirteenth transistor T13;
[0422] The gate of the thirteenth transistor T13 is electrically connected to the N-level driving signal output terminal NS(N), and the source of the thirteenth transistor T13 is electrically connected to the first low voltage terminal VGL;
[0423] 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;
[0424] The output circuit includes a fourteenth transistor T14 and a fifteenth transistor T15;
[0425] The gate of the fourteenth transistor T14 is electrically connected to the second node N2, the drain of the fourteenth transistor T14 is electrically connected to the high voltage terminal VGHN, and the source of the fourteenth transistor T14 is electrically connected to the output driving terminal NO (N);
[0426] The gate of the fifteenth transistor T15 is electrically connected to the second node N2, the drain of the fifteenth transistor T15 is electrically connected to the output driving terminal NO(N), and the source of the fifteenth transistor T15 is electrically connected to the first low voltage terminal VGL;
[0427] T14 is a p-type transistor, and T15 is a p-type transistor;
[0428] The first driving control circuit includes a sixteenth transistor T16, a seventeenth transistor T17, an eighteenth transistor T18 and a nineteenth transistor T19;
[0429] The gate of the sixteenth transistor T16 is electrically connected to the inverted clock signal terminal NCKI, the drain of the sixteenth transistor T16 is electrically connected to the high voltage terminal VGHN, and the source of the sixteenth transistor T16 is electrically connected to the drain of the seventeenth transistor T17;
[0430] The gate of the seventeenth transistor T17 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the source of the seventeenth transistor T17 is electrically connected to the fourth node N4;
[0431] The gate of the eighteenth transistor T18 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the drain of the eighteenth transistor T18 is electrically connected to the fourth node N4, and the source of the eighteenth transistor T18 is electrically connected to the drain of the nineteenth transistor T19;
[0432] The gate of the nineteenth transistor T19 is electrically connected to the control clock signal terminal NCK, and the source of the nineteenth transistor T19 is electrically connected to the second low voltage terminal VGLN;
[0433] 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;
[0434] The second driving control circuit includes a twentieth transistor T20, a twenty-first transistor T21, a twenty-second transistor T22 and a twenty-third transistor T23;
[0435] The gate of the 20th transistor T20 is electrically connected to the Nth stage driving signal output terminal NS(N), the drain of the 20th transistor T20 is electrically connected to the high voltage terminal VGHN, and the source of the 20th transistor T20 is electrically connected to the drain of the 21st transistor T21;
[0436] A gate of the twenty-first transistor T21 is electrically connected to the control clock signal terminal NCK, and a source of the twenty-first transistor T21 is electrically connected to the fourth node N4;
[0437] A gate of the 22nd transistor T22 is electrically connected to the inverted clock signal terminal NCKI, a drain of the 22nd transistor T22 is electrically connected to the fourth node N4, and a source of the 22nd transistor T22 is electrically connected to a drain of the 23rd transistor T23;
[0438] A gate of the twenty-third transistor T23 is electrically connected to the Nth stage driving signal output terminal NS(N), and a source of the twenty-third transistor T23 is electrically connected to the second low voltage terminal VGLN;
[0439] 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;
[0440] The second inverting circuit includes a twenty-fourth transistor T24 and a twenty-fifth transistor T25; the second initializing circuit includes a twenty-sixth transistor T26;
[0441] The gate of the 24th transistor T24 is electrically connected to the fourth node N4, the drain of the 24th transistor T24 is electrically connected to the high voltage terminal VGHN, and the source of the 24th transistor T24 is electrically connected to the drain of the 25th transistor T25 and the Nth stage driving signal output terminal NS(N);
[0442] A gate of the twenty-fifth transistor T25 is electrically connected to the fourth node N4, and a source of the twenty-fifth transistor T25 is electrically connected to the second low voltage terminal VGLN;
[0443] The twenty-fourth transistor T24 is a p-type transistor, and the twenty-fifth transistor T25 is an n-type transistor;
[0444] The gate of the 26th transistor T26 is electrically connected to the initial control terminal NCX, the drain of the 26th transistor T26 is electrically connected to the high voltage terminal VGHN, and the source of the 26th transistor T26 is electrically connected to the Nth stage driving signal output terminal NS(N);
[0445] The twenty-sixth transistor T26 is a p-type transistor;
[0446] The first inverting circuit includes a twenty-seventh transistor T27 and a twenty-eighth transistor T28;
[0447] The gate of the 27th transistor T27 is electrically connected to the control clock signal terminal NCK, the drain of the 27th transistor T27 is electrically connected to the high voltage terminal VGHN, and the source of the 27th transistor T27 is electrically connected to the drain of the 28th transistor T28 and the inverted clock signal terminal NCKI;
[0448] A gate of the 28th transistor T28 is electrically connected to the control clock signal terminal NCK, and a source of the 28th transistor T28 is electrically connected to the second low voltage terminal VGLN;
[0449] The twenty-seventh transistor T27 is a p-type transistor, and the twenty-eighth transistor T28 is an n-type transistor.
[0450] exist Fig.29 In at least one embodiment of the driving circuit shown, the voltage value of the second low voltage signal provided by VGLN can be smaller than the voltage value of the first low voltage signal provided by VGL, so that when the N-level driving signal output terminal NS(N) outputs a low voltage signal and the potential of the first node N1 is a low voltage, T12 and T13 can be well turned off.
[0451] exist Fig.29In at least one embodiment of the driving circuit shown, the first voltage terminal is a high voltage terminal VGHN, the second voltage terminal is a first low voltage terminal VGL, and the third voltage terminal is a second low voltage terminal VGLN.
[0452] The present invention Fig.29 At least one embodiment of the driving circuit is in operation.
[0453] 1. When GCK provides a high voltage signal, T19 is turned on and T20 is turned off. GCB provides a low voltage signal, T16 is turned on and T23 is turned off. At this time, the drive signal generation circuit is in the transmission state.
[0454] When NS(N) provides a low voltage signal, T17 is turned on, T18 is turned off, the potential of N6 is high voltage, T25 is turned on, T24 is turned off, NS(N) provides a low voltage signal, and NS(N-1) provides a low voltage signal;
[0455] When NS(N) provides a high voltage signal, T17 is closed, T18 is opened, the potential of N6 is low voltage, T25 is closed, T24 is opened, and both NS(N) and NS(N-1) provide high voltage signals;
[0456] 2. When GCK provides a low voltage signal, T19 is turned off and T20 is turned on. GCB provides a high voltage signal, T16 is turned off and T23 is turned on. At this time, the circuit is in the register state. T21, T22, T23 and T11 form a latch circuit. The potential of N6 and the signal provided by NS (N) maintain the previous state unchanged.
[0457] 3. When the signal provided by NS(N-1) switches from a low voltage signal to a high voltage signal, GCK provides a low voltage signal, closes T19, opens T20, GCB provides a high voltage signal, closes T16, and opens T23. At this time, the circuit is in the register state. T21, T22, T23, and T11 form a latch circuit. The potential of N6 and the signal provided by NS(N) maintain the previous low voltage state unchanged, completing the shift. At the next moment, GCK provides a high voltage signal, opens T19, closes T20, GCB provides a low voltage signal, opens T16, and closes T23. At this time, the circuit is in the transmission state. 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);
[0458] 4. When NS(N-1) switches from providing a high voltage signal to providing a low voltage signal, GCK provides a low voltage signal, turns off T19, turns on T20, GCB provides a high voltage signal, turns off T16, and turns on T23. At this time, the circuit is in a register state. T21, T22, T23 and T11 form a latch circuit. The potential of N6 and the signal provided by NS(N) remain unchanged at the previous high voltage state, and the shift is completed; at the next moment, GCK provides a high voltage signal, turns on T19, turns off T20, GCB provides a low voltage signal, turns on T16, and turns off T23. At this time, the circuit is in a transmission state, 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).
[0459] The present invention Fig.29 At least one embodiment of the driving circuit shown in the figure is in operation.
[0460] When NS(N-1) provides a high voltage signal, TX1 and TX2 are turned on, and when NS(N) provides a low voltage signal, TX3 and TX4 are turned on. By simultaneously selecting the two signals, the state of the selection input signal provided by VCT within a high-low frequency switching cycle H can be obtained and written into the first node N1. Then TX1, TX2, TX3 and TX4 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 the signal provided by NS(N) and the potential of N1, respectively, and the output end of the NAND gate is electrically connected to the second node N2. T24 and T25 form a second inverter circuit, the input end of the second inverter circuit is electrically connected to the fourth node N4, and the output end of the second inverter circuit is electrically connected to NS(N);
[0461] If VCT provides a high voltage signal when TX1, TX2, TX3, and TX4 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);
[0462] If VCT provides a low voltage signal when TX1, TX2, TX3 and TX4 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).
[0463] Optionally, 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 N2 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;
[0464] Afterwards, when NS(N-1) outputs a high voltage signal and NS(N) outputs a low voltage signal, TX1, TX2, TX3, and TX4 are turned on.
[0465] When VCT provides a low voltage signal, the potential of N1 is a low voltage signal, and C0 maintains the potential of N1; T11 is turned on, T10 is turned on, the potential of N2 is a high voltage, T15 is turned on, and NO (N) outputs a low voltage signal;
[0466] When VCT provides a high voltage signal, the potential of N1 is a high voltage signal, C0 maintains the potential of N1, T11 is turned off, T10 is turned on, the potential of N2 is a high voltage, T15 is turned on, and NO (N) outputs a low voltage signal;
[0467] Afterwards, in the Nth stage of driving signal provision, NS(N) outputs a high voltage signal.
[0468] When the potential of N1 is low voltage, T10 is turned off, T11 is turned on, the potential of N2 is high voltage, T15 is turned on, and NO(N) outputs a low voltage signal;
[0469] When the potential of N1 is high voltage, T10 is turned off, T11 is turned off, T12 and T13 are turned on, the potential of N2 is low voltage, T14 is turned on, and NO(N) outputs a high voltage signal;
[0470] After the Nth stage of driving signal supply, NS(N) outputs a low voltage signal.
[0471] When the potential of N1 is a low voltage signal, T10 is turned on, T11 is turned on, the potential of N2 is a high voltage, and NO(N) outputs a low voltage signal;
[0472] When the potential of N1 is a high voltage signal, T10 is turned on, T11 is turned off, the potential of N2 is a high voltage, and NO(N) outputs a low voltage signal.
[0473] The present invention Fig.29When at least one embodiment of the driving circuit shown is in operation, when NS(N-1) outputs a high voltage signal and NS(N) outputs a low voltage signal, TX1, TX2, TX3 and TX4 are turned on, and by simultaneously selecting the above two signals, the selection input signal state within a high-low frequency switching cycle can be obtained.
[0474] like Fig.30 As shown, in Fig. 27 Based on at least one embodiment of the driving circuit shown,
[0475] The first gating circuit includes a first first gating transistor TX11, a first second gating transistor TX12, a first third gating transistor TX13 and a first fourth gating transistor TX14;
[0476] The second gating circuit includes a second first gating transistor TX21, a second second gating transistor TX22, a second third gating transistor TX23 and a second fourth gating transistor TX24;
[0477] The gate of the first first selection transistor TX11 is connected to the inverted signal NSI(N-1) of the N-1th stage driving signal, and the drain of the first first selection transistor TX11 is electrically connected to the first selection input terminal VCT1;
[0478] The gate of the first second selection transistor TX12 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the drain of the first second selection transistor TX12 is electrically connected to the first selection input terminal VCT1;
[0479] The gate of the first third selection transistor TX13 is electrically connected to the N-th stage driving signal output terminal NS(N), the drain of the first third selection transistor TX13 is electrically connected to the source of the first first selection transistor TX11, and the source of the first third selection transistor TX13 is electrically connected to the first first node N11;
[0480] The gate of the first fourth selection transistor TX14 is connected to the inverted signal NSI(N) of the Nth stage driving signal, the drain of the first fourth selection transistor TX14 is electrically connected to the source of the first second selection transistor TX12, and the source of the first fourth selection transistor TX14 is electrically connected to the first first node N11;
[0481] The first first selection transistor TX11 is a p-type transistor, the first second selection transistor TX12 is an n-type transistor, the first third selection transistor TX13 is a p-type transistor, and the first fourth selection transistor TX14 is an n-type transistor;
[0482] The gate of the second first selection transistor TX21 is connected to the inverted signal NSI(N-1) of the N-1th stage driving signal, and the drain of the second first selection transistor TX21 is electrically connected to the second selection input terminal VCT2;
[0483] The gate of the second second selection transistor TX22 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the drain of the second second selection transistor TX22 is electrically connected to the second selection input terminal VCT2;
[0484] The gate of the second third selection transistor TX23 is electrically connected to the N-th stage driving signal output terminal NS(N), the drain of the second third selection transistor TX23 is electrically connected to the source of the second first selection transistor TX21, and the source of the second third selection transistor TX23 is electrically connected to the second first node N21;
[0485] The gate of the second fourth selection transistor TX24 is connected to the inverted signal NSI(N) of the Nth stage driving signal, the drain of the second fourth selection transistor TX24 is electrically connected to the source of the second second selection transistor TX22, and the source of the second fourth selection transistor TX24 is electrically connected to the second first node N21;
[0486] The second first selection transistor TX21 is a p-type transistor, the second second selection transistor TX22 is an n-type transistor, the second third selection transistor TX23 is a p-type transistor, and the second fourth selection transistor TX24 is an n-type transistor;
[0487] The first reset circuit includes a first first transistor T011 and a first second transistor T012;
[0488] The gate of the first first transistor T011 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the drain of the first first transistor T011 is electrically connected to the high voltage terminal VGHN, and the source of the first first transistor T011 is electrically connected to the drain of the first second transistor T012;
[0489] The gate of the first second transistor T012 is electrically connected to the Nth stage driving signal output terminal NS(N), and the source of the first second transistor T012 is electrically connected to the first first node N11;
[0490] T011 and T012 are p-type transistors;
[0491] The second reset circuit includes a second first transistor T021 and a second second transistor T022;
[0492] The gate of the second first transistor T021 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the drain of the second first transistor T021 is electrically connected to the high voltage terminal VGHN, and the source of the second first transistor T021 is electrically connected to the drain of the second second transistor T022;
[0493] The gate of the second second transistor T022 is electrically connected to the Nth stage driving signal output terminal NS(N), and the source of the second second transistor T022 is electrically connected to the second first node N21;
[0494] T021 and T022 are p-type transistors;
[0495] The first first initialization circuit includes a first ninth transistor T019;
[0496] The gate of the first ninth transistor T019 is electrically connected to the initial control terminal NCX, the drain of the first ninth transistor T019 is electrically connected to the high voltage terminal VGHN, and the source of the first ninth transistor T019 is electrically connected to the first first node N11;
[0497] T019 is a p-type transistor;
[0498] The first first voltage maintaining circuit includes a first capacitor C1; the second first voltage maintaining circuit includes a second capacitor C2;
[0499] The first end of the first capacitor C1 is electrically connected to the first first node N11, and the second end of the first capacitor C1 is electrically connected to the first low voltage end VGL;
[0500] The first end of the second capacitor C2 is electrically connected to the second first node N21, and the second end of the second capacitor C2 is electrically connected to the first low voltage end VGL;
[0501] The first output control circuit includes a first tenth transistor T110, a first eleventh transistor T111, a first twelfth transistor T112 and a first thirteenth transistor T113;
[0502] The gate of the first tenth transistor T110 is electrically connected to the first first node N11, the drain of the first tenth transistor T110 is electrically connected to the high voltage terminal VGHN, and the source of the first tenth transistor T110 is electrically connected to the first second node N12;
[0503] The gate of the first eleventh transistor T111 is electrically connected to the Nth stage driving signal output terminal NS(N), the drain of the first eleventh transistor T111 is electrically connected to the high voltage terminal VGHN, and the source of the first eleventh transistor T111 is electrically connected to the first second node N12;
[0504] The gate of the first twelfth transistor T112 is electrically connected to the first first node N11, the drain of the first twelfth transistor T112 is electrically connected to the first second node N12, and the source of the first twelfth transistor T112 is electrically connected to the drain of the first thirteenth transistor T113;
[0505] The gate of the first thirteenth transistor T113 is electrically connected to the N-level driving signal output terminal NS(N), and the source of the first thirteenth transistor T113 is electrically connected to the first low voltage terminal VGL;
[0506] The first tenth transistor T110 and the first eleventh transistor T111 are p-type transistors, and the first twelfth transistor T112 and the first thirteenth transistor T113 are n-type transistors;
[0507] The first output circuit includes a first fourteenth transistor T114 and a first fifteenth transistor T115;
[0508] The gate of the first fourteenth transistor T114 is electrically connected to the first second node N12, the drain of the first fourteenth transistor T114 is electrically connected to the high voltage terminal VGHN, and the source of the first fourteenth transistor T114 is electrically connected to the first output driving terminal NO1 (N);
[0509] The gate of the first fifteenth transistor T115 is electrically connected to the first second node N12, the drain of the first fifteenth transistor T115 is electrically connected to the first output driving terminal NO1 (N), and the source of the first fifteenth transistor T115 is electrically connected to the first low voltage terminal VGL;
[0510] T114 is a p-type transistor, and T115 is a p-type transistor;
[0511] The first first initialization circuit includes a first ninth transistor T019;
[0512] The gate of the first ninth transistor T019 is electrically connected to the initial control terminal NCX, the drain of the first ninth transistor T019 is electrically connected to the high voltage terminal VGHN, and the source of the first ninth transistor T019 is electrically connected to the first first node N11;
[0513] T019 is a p-type transistor;
[0514] The second first initialization circuit includes a second ninth transistor T029;
[0515] The gate of the second ninth transistor T029 is electrically connected to the initial control terminal NCX, the drain of the second ninth transistor T029 is electrically connected to the high voltage terminal VGHN, and the source of the second ninth transistor T029 is electrically connected to the second first node N21;
[0516] T029 is a p-type transistor;
[0517] The first first voltage maintaining circuit includes a first capacitor C1; the second first voltage maintaining circuit includes a second capacitor C2;
[0518] The first end of the first capacitor C1 is electrically connected to the first first node N11, and the second end of the first capacitor C1 is electrically connected to the first low voltage end VGL;
[0519] The first end of the second capacitor C2 is electrically connected to the second first node N21, and the second end of the second capacitor C2 is electrically connected to the first low voltage end VGL;
[0520] The first output control circuit includes a first tenth transistor T110, a first eleventh transistor T111, a first twelfth transistor T112 and a first thirteenth transistor T113;
[0521] The gate of the first tenth transistor T110 is electrically connected to the first first node N11, the drain of the first tenth transistor T110 is electrically connected to the high voltage terminal VGHN, and the source of the first tenth transistor T110 is electrically connected to the first second node N12;
[0522] The gate of the first eleventh transistor T111 is electrically connected to the Nth stage driving signal output terminal NS(N), the drain of the first eleventh transistor T111 is electrically connected to the high voltage terminal VGHN, and the source of the first eleventh transistor T111 is electrically connected to the first second node N12;
[0523] The gate of the first twelfth transistor T112 is electrically connected to the first first node N11, the drain of the first twelfth transistor T112 is electrically connected to the first second node N12, and the source of the first twelfth transistor T112 is electrically connected to the drain of the first thirteenth transistor T113;
[0524] The gate of the first thirteenth transistor T113 is electrically connected to the N-level driving signal output terminal NS(N), and the source of the first thirteenth transistor T113 is electrically connected to the first low voltage terminal VGL;
[0525] The first tenth transistor T110 and the first eleventh transistor T111 are p-type transistors, and the first twelfth transistor T112 and the first thirteenth transistor T113 are n-type transistors;
[0526] The first output circuit includes a first fourteenth transistor T114 and a first fifteenth transistor T115;
[0527] The gate of the first fourteenth transistor T114 is electrically connected to the first second node N12, the drain of the first fourteenth transistor T114 is electrically connected to the high voltage terminal VGHN, and the source of the first fourteenth transistor T114 is electrically connected to the first output driving terminal NO1 (N);
[0528] The gate of the first fifteenth transistor T115 is electrically connected to the first second node N12, the drain of the first fifteenth transistor T115 is electrically connected to the first output driving terminal NO1 (N), and the source of the first fifteenth transistor T115 is electrically connected to the first low voltage terminal VGL;
[0529] T114 is a p-type transistor, and T115 is a p-type transistor;
[0530] The second output control circuit includes a second tenth transistor T210, a second eleventh transistor T211, a second twelfth transistor T112 and a second thirteenth transistor T213;
[0531] The gate of the second tenth transistor T210 is electrically connected to the second first node N21, the drain of the second tenth transistor T210 is electrically connected to the high voltage terminal VGHN, and the source of the second tenth transistor T110 is electrically connected to the second second node N22;
[0532] The gate of the second eleventh transistor T211 is electrically connected to the Nth stage driving signal output terminal NS(N), the drain of the second eleventh transistor T211 is electrically connected to the high voltage terminal VGHN, and the source of the second eleventh transistor T211 is electrically connected to the second second node N22;
[0533] The gate of the second twelfth transistor T212 is electrically connected to the second first node N21, the drain of the second twelfth transistor T212 is electrically connected to the second second node N22, and the source of the second twelfth transistor T212 is electrically connected to the drain of the second thirteenth transistor T213;
[0534] The gate of the second thirteenth transistor T213 is electrically connected to the N-level driving signal output terminal NS(N), and the source of the second thirteenth transistor T213 is electrically connected to the first low voltage terminal VGL;
[0535] The second tenth transistor T210 and the second eleventh transistor T211 are p-type transistors, and the second twelfth transistor T212 and the second thirteenth transistor T213 are n-type transistors;
[0536] The second output circuit includes a second fourteenth transistor T214 and a second fifteenth transistor T215;
[0537] The gate of the second fourteenth transistor T214 is electrically connected to the second second node N22, the drain of the second fourteenth transistor T214 is electrically connected to the high voltage terminal VGHN, and the source of the second fourteenth transistor T214 is electrically connected to the second output driving terminal NO2 (N);
[0538] The gate of the second fifteenth transistor T215 is electrically connected to the second second node N22, the drain of the second fifteenth transistor T215 is electrically connected to the second output driving terminal NO2(N), and the source of the second fifteenth transistor T215 is electrically connected to the first low voltage terminal VGL;
[0539] T114 is a p-type transistor, and T115 is a p-type transistor;
[0540] The first driving control circuit includes a sixteenth transistor T16, a seventeenth transistor T17, an eighteenth transistor T18 and a nineteenth transistor T19;
[0541] The gate of the sixteenth transistor T16 is electrically connected to the inverted clock signal terminal NCKI, the drain of the sixteenth transistor T16 is electrically connected to the high voltage terminal VGHN, and the source of the sixteenth transistor T16 is electrically connected to the drain of the seventeenth transistor T17;
[0542] The gate of the seventeenth transistor T17 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), and the source of the seventeenth transistor T17 is electrically connected to the fourth node N4;
[0543] The gate of the eighteenth transistor T18 is electrically connected to the N-1th stage driving signal output terminal NS(N-1), the drain of the eighteenth transistor T18 is electrically connected to the fourth node N4, and the source of the eighteenth transistor T18 is electrically connected to the drain of the nineteenth transistor T19;
[0544] The gate of the nineteenth transistor T19 is electrically connected to the control clock signal terminal NCK, and the source of the nineteenth transistor T19 is electrically connected to the second low voltage terminal LVGL;
[0545] 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;
[0546] The second driving control circuit includes a twentieth transistor T20, a twenty-first transistor T21, a twenty-second transistor T22 and a twenty-third transistor T23;
[0547] A gate of the 20th transistor T20 is electrically connected to the control clock signal terminal NCK, a drain of the 20th transistor T20 is electrically connected to the high voltage terminal VGHN, and a source of the 20th transistor T20 is electrically connected to a drain of the 21st transistor T21;
[0548] A gate of the twenty-first transistor T21 is electrically connected to the Nth stage driving signal output terminal NS(N), and a source of the twenty-first transistor T21 is electrically connected to the fourth node N4;
[0549] The gate of the 22nd transistor T22 is electrically connected to the Nth stage driving signal output terminal NS(N), the drain of the 22nd transistor T22 is electrically connected to the fourth node N4, and the source of the 22nd transistor T22 is electrically connected to the drain of the 23rd transistor T23;
[0550] A gate of the twenty-third transistor T23 is electrically connected to the inverted clock signal terminal NCKI, and a source of the twenty-third transistor T23 is electrically connected to the second low voltage terminal VGLN;
[0551] 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;
[0552] The second inverting circuit includes a twenty-fourth transistor T24 and a twenty-fifth transistor T25; the second initializing circuit includes a twenty-sixth transistor T26;
[0553] The gate of the 24th transistor T24 is electrically connected to the fourth node N4, the drain of the 24th transistor T24 is electrically connected to the high voltage terminal VGHN, and the source of the 24th transistor T24 is electrically connected to the drain of the 25th transistor T25 and the Nth stage driving signal output terminal NS(N);
[0554] A gate of the twenty-fifth transistor T25 is electrically connected to the fourth node N4, and a source of the twenty-fifth transistor T25 is electrically connected to the second low voltage terminal VGLN;
[0555] The twenty-fourth transistor T24 is a p-type transistor, and the twenty-fifth transistor T25 is an n-type transistor;
[0556] The gate of the 26th transistor T26 is electrically connected to the initial control terminal NCX, the drain of the 26th transistor T26 is electrically connected to the high voltage terminal VGHN, and the source of the 26th transistor T26 is electrically connected to the Nth stage driving signal output terminal NS(N);
[0557] The twenty-sixth transistor T26 is a p-type transistor;
[0558] The first inverting circuit includes a twenty-seventh transistor T27 and a twenty-eighth transistor T28;
[0559] The gate of the 27th transistor T27 is electrically connected to the control clock signal terminal NCK, the drain of the 27th transistor T27 is electrically connected to the high voltage terminal VGHN, and the source of the 27th transistor T27 is electrically connected to the drain of the 28th transistor T28 and the inverted clock signal terminal NCKI;
[0560] A gate of the 28th transistor T28 is electrically connected to the control clock signal terminal NCK, and a source of the 28th transistor T28 is electrically connected to the second low voltage terminal VGLN;
[0561] The twenty-seventh transistor T27 is a p-type transistor, and the twenty-eighth transistor T28 is an n-type transistor.
[0562] exist Fig.30 In at least one embodiment of the driving circuit shown, the voltage value of the second low voltage signal provided by VGLN can be smaller than the voltage value of the first low voltage signal provided by VGL, so that when the N-level driving signal output terminal NS(N) outputs a low voltage signal and the potential of the first node N1 is a low voltage, T12 and T13 can be well turned off.
[0563] Fig.31 yes Fig.30 FIG. 1 is a timing diagram of the operation of at least one embodiment of the driving circuit shown.
[0564] exist Fig.30 In at least one embodiment of the driving circuit shown, VCT1 and VCT2 can independently write control signals to achieve separate output control of NO1 (N) and NO2 (N).
[0565] exist Fig.32 In the embodiment, the first output driver terminal of the first level is labeled NO1(1), the first output driver terminal of the second level is labeled NO1(2), the first output driver terminal of the third level is labeled NO1(3), the first output driver terminal of the fourth level is labeled NO1(4), the first output driver terminal of the fifth level is labeled NO1(5), the first output driver terminal of the sixth level is labeled NO1(6), the first output driver terminal of the seventh level is labeled NO1(7), the first output driver terminal of the eighth level is labeled NO1(8), the first output driver terminal of the ninth level is labeled NO1(9), the first output driver terminal of the tenth level is labeled NO1(10), the first output driver terminal of the eleventh level is labeled NO1(11), and the first output driver terminal of the twelfth level is labeled NO1(12);
[0566] The first-level second output driver terminal is labeled NO2(1), the second-level second output driver terminal is labeled NO2(2), the third-level second output driver terminal is labeled NO2(3), the fourth-level second output driver terminal is labeled NO2(4), the fifth-level second output driver terminal is labeled NO2(5), the sixth-level second output driver terminal is labeled NO2(6), the seventh-level second output driver terminal is labeled NO2(7), the eighth-level second output driver terminal is labeled NO2(8), the ninth-level second output driver terminal is labeled NO2(9), the tenth-level second output driver terminal is labeled NO2(10), the eleventh-level second output driver terminal is labeled NO2(11), and the twelfth-level second output driver terminal is labeled NO2(12).
[0567] like Fig.33 As shown, at least one embodiment of the second voltage maintaining circuit may include a maintaining control circuit, a first inverter and a second inverter;
[0568] The sustain control circuit may include a third transistor T3 and a fourth transistor T4;
[0569] The gate of the third transistor T3 is electrically connected to the N-1th stage driving signal terminal NS(N-1), the drain of the third transistor T3 is electrically connected to the first node N1, and the source of the third transistor T3 is electrically connected to the third node N3;
[0570] The gate of the fourth transistor T4 is electrically connected to the control clock signal terminal, the drain of the fourth transistor T4 is electrically connected to the third node N3, and the source of the fourth transistor T4 is electrically connected to the first node N1;
[0571] The third transistor T3 is a p-type transistor, and the fourth transistor T4 is an n-type transistor;
[0572] 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;
[0573] The gate of the fifth transistor T5 is electrically connected to the first node N1, the drain of the fifth transistor T5 is electrically connected to the high voltage terminal VGHN, and the source of the fifth transistor T5 is electrically connected to the second node N2;
[0574] The gate of the sixth transistor T6 is electrically connected to the first node N1, the drain of the sixth transistor T6 is electrically connected to the second node N2, and the source of the sixth transistor T6 is electrically connected to the first low voltage terminal VGL;
[0575] The fifth transistor T5 is a p-type transistor, and the sixth transistor T6 is an n-type transistor;
[0576] The gate of the seventh transistor T7 is electrically connected to the second node N2, the drain of the seventh transistor T7 is electrically connected to the high voltage terminal VGHN, and the source of the seventh transistor T7 is electrically connected to the third node N3;
[0577] The gate of the eighth transistor T8 is electrically connected to the second node N2, the drain of the eighth transistor T8 is electrically connected to the third node N3, and the source of the eighth transistor T8 is electrically connected to the first low voltage terminal VGL;
[0578] The seventh transistor T7 is a p-type transistor, and the eighth transistor T8 is an n-type transistor.
[0579] exist Fig.33 In at least one embodiment of the second voltage maintaining circuit shown, the gate of the third transistor T3 may be replaced to be electrically connected to the inverted clock signal terminal NCKI or the first clock signal terminal.
[0580] In at least one embodiment of the present invention, since the p-type transistor has a threshold voltage loss when transmitting a low voltage and the n-type transistor has a threshold voltage loss when transmitting a high voltage, 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 to control the disconnection between N1 and N3 when each selection transistor is turned on, so as not to affect the writing of the potential of N1.
[0581] A driving method according to at least one embodiment of the present invention is applied to the above-mentioned driving circuit, and the driving method includes:
[0582] The driving signal generating circuit performs a shift operation on the N-1th level driving signal under the control of the control clock signal, obtains and outputs the Nth level driving signal through the Nth level driving signal output terminal;
[0583] The mth gating circuit controls, under the control of the mth gating control signal, to write the mth gating input signal into the mth first node;
[0584] The mth output control circuit performs a NAND operation on the Nth stage driving signal and the potential of the second end of the mth output control circuit to obtain an mth first output signal;
[0585] The mth output circuit is used to invert the mth first output signal, and obtain an mth output driving signal through the mth output driving terminal;
[0586] M is a positive integer; m is a positive integer less than or equal to M, and N is a positive integer.
[0587] The display device described in the embodiment of the present invention includes the above-mentioned driving circuit.
[0588] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A driving circuit, characterized in that: It includes a driving signal generating circuit, M output driving terminals and M control circuits; the m-th control circuit includes an m-th gating circuit, an m-th output control circuit and an m-th output circuit; M is a positive integer; m is a positive integer less than or equal to M; The drive signal generating circuit is electrically connected to the control clock signal terminal, the N-1th level drive signal output terminal and the Nth level drive signal output terminal respectively, and is used for performing a shift operation on the N-1th level drive signal provided by the N-1th level drive signal output terminal under the control of the control clock signal provided by the control clock signal terminal, so as to obtain and output the Nth level drive signal through the Nth level drive signal output terminal; The m-th gating circuit is electrically connected to the m-th first node, the m-th gating input terminal and the m-th gating control terminal respectively, and is used for controlling the writing of the m-th gating input signal provided by the m-th gating input terminal into the m-th first node under the control of the m-th gating control signal provided by the m-th gating control terminal; The first end of the m-th output control circuit is electrically connected to the N-th level drive signal output end, and the second end of the m-th output control circuit is electrically connected to the m-th first node, and is used to perform a NAND operation on the N-th level drive signal and the potential of the second end of the m-th output control circuit to obtain the m-th first output signal; The mth output circuit is used to invert the mth first output signal, and obtain an mth output driving signal through the mth output driving terminal; N is a positive integer.
2. The driving circuit according to claim 1, characterized in that: Also included is a first inverting circuit; The first inversion circuit is electrically connected to the control clock signal terminal and the inverted clock signal terminal respectively, and is used to invert the control clock signal to obtain an inverted clock signal, and output the inverted clock signal through the inverted clock signal terminal; The drive signal generating circuit is also electrically connected to the inverted clock signal terminal, and is also used to shift the N-1th level drive signal provided by the N-1th level drive signal output terminal under the control of the inverted clock signal, to obtain and output the Nth level drive signal through the Nth level drive signal output terminal.
3. The driving circuit according to claim 1, characterized in that: The mth gating circuit is used for controlling the writing of the mth gating input signal provided by the mth gating input terminal into the mth 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.
4. The driving circuit according to claim 1, wherein: The mth gating control terminal includes an mth first control terminal, an mth second control terminal, an mth third control terminal and an mth fourth control terminal, and the mth gating circuit includes an mth first gating transistor, an mth second gating transistor, an mth third gating transistor and an mth fourth gating transistor; The gate of the mth first selection transistor is electrically connected to the mth first control terminal, and the first electrode of the mth first selection transistor is electrically connected to the mth selection input terminal; The gate of the mth second selection transistor is electrically connected to the mth second control terminal, and the first electrode of the mth second selection transistor is electrically connected to the mth selection input terminal; The gate of the mth third selection transistor is electrically connected to the mth third control terminal, the first electrode of the mth third selection transistor is electrically connected to the second electrode of the mth first selection transistor, and the second electrode of the mth third selection transistor is electrically connected to the mth first node; The gate of the mth fourth selection transistor is electrically connected to the mth fourth control terminal, the first electrode of the mth fourth selection transistor is electrically connected to the second electrode of the mth second selection transistor, and the second electrode of the mth fourth selection transistor is electrically connected to the mth first node; The mth first selection transistor is a p-type transistor, the mth second selection transistor is an n-type transistor, the mth third selection transistor is a p-type transistor, and the mth fourth selection transistor is an n-type transistor; The mth first control terminal is connected to the inverted signal of the N-1th level driving signal, the mth second control terminal is the N-1th level driving signal output terminal, the mth third control terminal is the Nth level driving signal output terminal, and the mth fourth control terminal is connected to the inverted signal of the Nth level driving signal; Alternatively, the mth first control terminal is connected to the inverted signal of the Nth level drive signal, the mth second control terminal is the Nth level drive signal output terminal, the mth third control terminal is the N-1th level drive signal output terminal, and the mth fourth control terminal is connected to the inverted signal of the N-1th level drive signal.
5. The driving circuit according to claim 4, characterized in that: The second electrode of the mth first selection transistor is electrically connected to the second electrode of the mth second selection transistor.
6. The driving circuit according to claim 1, characterized in that: The mth gating circuit comprises an mth first gating transistor; The gate of the mth first selection transistor is electrically connected to the mth selection control terminal, the first electrode of the mth first selection transistor is electrically connected to the mth first node, and the second electrode of the mth first selection transistor is electrically connected to the mth selection input terminal.
7. The driving circuit according to claim 1, characterized in that: The mth gating control terminal includes an mth first control terminal and an mth second control terminal; the mth gating circuit includes an mth first gating transistor and an mth second gating transistor; The gate of the mth first selection transistor is electrically connected to the mth first control terminal, the first electrode of the mth first selection transistor is electrically connected to the mth first node, and the second electrode of the mth first selection transistor is electrically connected to the first electrode of the mth second selection transistor; The gate of the mth second selection transistor is electrically connected to the mth second control terminal, and the second electrode of the mth second selection transistor is electrically connected to the mth selection input terminal; The mth first control terminal is the N-1th level drive signal output terminal, the mth second control terminal is the Nth level drive signal output terminal, the mth first selection transistor is an n-type transistor, and the mth second selection transistor is a p-type transistor; or, The mth first control terminal is the Nth level drive signal output terminal, the mth second control terminal is the N-1th level drive signal output terminal, the mth first selection transistor is a p-type transistor, and the mth second selection transistor is an n-type transistor; or, The mth first control terminal is connected to the inverted signal of the N-1th level driving signal, the mth second control terminal is the Nth level driving signal output terminal, and the mth first selection transistor and the mth second selection transistor are both p-type transistors; or, The mth first control terminal is an output terminal of the Nth level driving signal, and the mth second control terminal is connected to the inverted signal of the N-1th level driving signal; the mth first selection transistor and the mth second selection transistor are both p-type transistors; or, The mth first control terminal is the N-1th level driving signal terminal, the mth second control terminal is connected to the inverted signal of the Nth level driving signal, and the mth first selection transistor and the mth second selection transistor are both n-type transistors; or, The mth first control terminal is connected to the inverted signal of the Nth level driving signal, the mth second control terminal is the N-1th level driving signal terminal, and the mth first selection transistor and the mth second selection transistor are both n-type transistors.
8. The driving circuit according to claim 1, characterized in that: The mth control circuit further includes an mth first initialization circuit; The mth first initialization circuit is electrically connected to the initial control terminal, the first voltage terminal and the mth first node respectively, and is used to control the connection between the mth first node and the first voltage terminal under the control of the initial control signal provided by the initial control terminal.
9. The driving circuit according to claim 1, characterized in that: The mth control circuit also includes an mth reset circuit; The mth reset circuit is electrically connected to the first voltage terminal, the N-1th level drive signal output terminal, the N-1th level drive signal output terminal and the mth first node, respectively, and is used to control the connection between the mth first node and the first voltage terminal under the control of the N-1th level drive signal and the N-1th level drive signal provided by the N-1th level drive signal output terminal.
10. The driving circuit according to claim 1, wherein: The mth control circuit further includes an mth first voltage maintaining circuit; The first end of the mth first voltage maintaining circuit is electrically connected to the mth first node, the second end of the mth first voltage maintaining circuit is electrically connected to the DC voltage end, and the mth voltage maintaining circuit is used to maintain the potential of the mth first node.
11. The driving circuit according to claim 1, characterized in that: The m-th control circuit further includes an m-th second voltage maintaining circuit; the m-th first node is electrically connected to the second end of the m-th output control circuit through the m-th second voltage maintaining circuit; The mth second voltage maintaining circuit comprises an mth first inverter, an mth second inverter and an mth maintaining control circuit; The input end of the mth first inverter is electrically connected to the mth first node, the output end of the mth first inverter is electrically connected to the mth second node, the input end of the mth second inverter is electrically connected to the mth second node, and the output end of the mth second inverter is electrically connected to the mth third node and the second end of the mth output control circuit; The mth first inverter is used to invert the potential of the mth first node, and output the inverted potential of the mth first node through the output end of the mth first inverter, and the mth second inverter is used to invert the potential of its input end, and output the inverted potential through the output end of the mth second inverter; The mth maintenance control circuit is electrically connected to the mth maintenance control terminal, the mth third node and the mth first node respectively, and is used to control the connection or disconnection between the mth third node and the mth first node under the control of the mth maintenance control signal provided by the mth maintenance control terminal.
12. The driving circuit according to claim 2, characterized in that: The mth reset circuit comprises an mth first transistor and an mth second transistor; The gate of the mth first transistor is electrically connected to the N-1th stage driving signal output terminal, the first electrode of the mth first transistor is electrically connected to the first voltage terminal, and the second electrode of the mth first transistor is electrically connected to the first electrode of the mth second transistor; A gate electrode of the mth second transistor is electrically connected to the Nth stage driving signal output terminal, and a second electrode of the mth second transistor is electrically connected to the mth first node.
13. The driving circuit according to claim 11, characterized in that: The mth maintenance control terminal includes an mth first maintenance control terminal and an mth second maintenance control terminal; The mth sustain control circuit comprises an mth third transistor and an mth fourth transistor; The gate of the mth third transistor is electrically connected to the mth first sustain control terminal, the first electrode of the mth third transistor is electrically connected to the mth first node, and the second electrode of the mth third transistor is electrically connected to the mth third node; The gate of the mth fourth transistor is electrically connected to the mth second sustain control terminal, the first electrode of the mth fourth transistor is electrically connected to the mth third node, and the second electrode of the mth fourth transistor is electrically connected to the mth first node; The mth third transistor is a p-type transistor, and the mth fourth transistor is an n-type transistor; The mth first sustain control terminal is the N-1th level driving signal terminal, and the mth second sustain control terminal is the control clock signal terminal; or, The mth first sustain control terminal is an inverted clock signal terminal, and the mth second sustain control terminal is a control clock signal terminal.
14. The driving circuit according to claim 11, characterized in that: The mth first inverter includes an mth fifth transistor and an mth sixth transistor, and the mth second inverter includes an mth seventh transistor and an mth eighth transistor; The gate of the mth fifth transistor is electrically connected to the mth first node, the first electrode of the mth fifth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth fifth transistor is electrically connected to the mth second node; The gate of the mth sixth transistor is electrically connected to the mth first node, the first electrode of the mth sixth transistor is electrically connected to the mth second node, and the second electrode of the mth sixth transistor is electrically connected to the second voltage terminal; The mth fifth transistor is a p-type transistor, and the mth sixth transistor is an n-type transistor; A gate of the mth seventh transistor is electrically connected to the mth second node, a first electrode of the mth seventh transistor is electrically connected to the first voltage terminal, and a second electrode of the mth seventh transistor is electrically connected to the mth third node; The gate of the mth eighth transistor is electrically connected to the mth second node, the first electrode of the mth eighth transistor is electrically connected to the mth third node, and the second electrode of the mth eighth transistor is electrically connected to the second voltage terminal; The mth seventh transistor is a p-type transistor, and the mth eighth transistor is an n-type transistor.
15. The driving circuit according to claim 8, characterized in that: The mth first initialization circuit comprises an mth ninth transistor; The gate of the mth ninth transistor is electrically connected to the initial control terminal, the first electrode of the mth ninth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth ninth transistor is electrically connected to the mth first node.
16. The driving circuit according to claim 10, characterized in that: The mth first voltage maintaining circuit comprises an mth capacitor; The first end of the m-th capacitor is electrically connected to the m-th first node, and the second end of the m-th capacitor is electrically connected to a DC voltage terminal.
17. The driving circuit according to any one of claims 1 to 16, characterized in that: The m-th output control circuit comprises an m-th tenth transistor, an m-th eleventh transistor, an m-th twelfth transistor and an m-th thirteenth transistor; The gate of the mth tenth transistor is electrically connected to the mth first node, the first electrode of the mth tenth transistor is electrically connected to the first voltage terminal, and the second electrode of the mth tenth transistor is electrically connected to the mth second node; The gate of the mth eleventh transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the mth eleventh transistor is electrically connected to the first voltage terminal, and the second electrode of the mth eleventh transistor is electrically connected to the mth second node; A gate of the mth twelfth transistor is electrically connected to the mth first node, a first electrode of the mth twelfth transistor is electrically connected to the mth second node, and a second electrode of the mth twelfth transistor is electrically connected to a first electrode of the mth thirteenth transistor; The gate of the mth thirteenth transistor is electrically connected to the N-level driving signal output terminal, and the second electrode of the mth thirteenth transistor is electrically connected to the second voltage terminal; The m-th tenth transistor and the m-th eleventh transistor are p-type transistors, and the m-th twelfth transistor and the m-th thirteenth transistor are n-type transistors.
18. The driving circuit according to any one of claims 1 to 16, characterized in that: The m-th output circuit comprises an m-th fourteenth transistor and an m-th fifteenth transistor; The gate of the m-th fourteenth transistor is electrically connected to the m-th second node, the first electrode of the m-th fourteenth transistor is electrically connected to the first voltage terminal, and the second electrode of the m-th fourteenth transistor is electrically connected to the m-th output driving terminal; The gate of the mth fifteenth transistor is electrically connected to the mth second node, the first electrode of the mth fifteenth transistor is electrically connected to the mth output driving terminal, and the second electrode of the mth fifteenth transistor is electrically connected to the second voltage terminal.
19. The driving circuit according to any one of claims 2 to 16, characterized in that: The driving signal generating circuit comprises a first driving control circuit, a second driving control circuit, a second inverting circuit and a second initializing circuit; The first drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the N-1th level drive signal output terminal and the fourth 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 control clock signal provided by the control clock signal terminal and the inverted clock signal provided by the inverted clock signal terminal, and obtain and output the inverted signal through the fourth node; The second drive control circuit is electrically connected to the control clock signal terminal, the inverted clock signal terminal, the Nth level drive signal output terminal and the fourth node respectively, and is used to invert the Nth level drive signal provided by the Nth level drive signal output terminal under the control of the control clock signal and the inverted clock signal, and obtain and output the inverted signal through the fourth node; The second inverting circuit is electrically connected to the fourth node and the Nth level driving signal output terminal respectively, and is used to invert the potential of the fourth node and output the inverted signal through the Nth level driving 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.
20. The driving circuit according to claim 19, characterized in that: The first drive 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 inverted 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 fourth 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 fourth 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 control clock signal terminal, and the second electrode of the nineteenth transistor is electrically connected to the third 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.
21. The driving circuit according to claim 19, characterized in that: The second drive control circuit includes a twentieth transistor, a twenty-first transistor, a twenty-second transistor and a twenty-third transistor; The gate of the 20th transistor is electrically connected to the Nth stage driving signal output terminal, the first electrode of the 20th transistor is electrically connected to the first voltage terminal, and the second electrode of the 20th transistor is electrically connected to the first electrode of the 21st transistor; A gate of the twenty-first transistor is electrically connected to the control clock signal terminal, and a second electrode of the twenty-first transistor is electrically connected to the fourth node; A gate of the 22nd transistor is electrically connected to the inverted clock signal terminal, a first electrode of the 22nd transistor is electrically connected to the fourth 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 Nth stage driving signal output terminal, and a second electrode of the twenty-third transistor is electrically connected to the third 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.
22. The driving circuit according to claim 19, characterized in that: The second inverting circuit includes a twenty-fourth transistor and a twenty-fifth transistor; the second initializing circuit includes a twenty-sixth transistor; The gate of the 24th transistor is electrically connected to the fourth node, the first electrode of the 24th transistor is electrically connected to the first voltage terminal, and the second electrode of the 24th transistor is electrically connected to the first electrode of the 25th transistor and the Nth stage driving signal output terminal; A gate of the twenty-fifth transistor is electrically connected to the fourth node, and a second electrode of the twenty-fifth transistor is electrically connected to the third 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.
23. The driving circuit according to claim 2, characterized in that: The first inverter circuit includes a twenty-seventh transistor and a twenty-eighth transistor; The gate of the twenty-seventh transistor is electrically connected to the control clock signal terminal, the first electrode of the twenty-seventh transistor is electrically connected to the first voltage terminal, and the second electrode of the twenty-seventh transistor is electrically connected to the first electrode of the twenty-eighth transistor and the inverted clock signal terminal; A gate of the twenty-eighth transistor is electrically connected to the control clock signal terminal, and a second electrode of the twenty-eighth transistor is electrically connected to the third voltage terminal.
24. A driving method, applied to the driving circuit according to any one of claims 1 to 23, characterized in that: The driving method comprises: The driving signal generating circuit performs a shift operation on the N-1th level driving signal under the control of the control clock signal, obtains and outputs the Nth level driving signal through the Nth level driving signal output terminal; The mth gating circuit controls, under the control of the mth gating control signal, to write the mth gating input signal into the mth first node; The mth output control circuit performs a NAND operation on the Nth stage driving signal and the potential of the second end of the mth output control circuit to obtain an mth first output signal; The mth output circuit is used to invert the mth first output signal, and obtain an mth output driving signal through the mth output driving terminal; M is a positive integer; m is a positive integer less than or equal to M, and N is a positive integer.
25. A display device, characterized in that: The method comprises a driving circuit as claimed in any one of claims 1 to 23.
Citation Information
Patent Citations
Shifting register, driving method for display panel and related device
CN104966506A
Shift register unit, shift register and display panel
CN106128378A
Shifting register unit, driving method, grid driving circuit and display device
CN110689839A
Gate drive circuit and display panel
CN112927644A
Driving circuit, driving method, driving module and display device
CN119604926A
