Driving method and display device

Abstract

The invention provides a driving method and a display device. The driving method is applied to the display device and comprises the following steps: when it is judged that a display panel enters a holding frame after passing N + 1 refresh frames and N is greater than or equal to a first time threshold, controlling and adjusting a first high voltage and / or a first low voltage in the holding frame after the N + 1 refresh frames according to a brightness range in which the display panel is located, n is a natural number, and the first time threshold value is a natural number. According to the invention, when the display panel is switched from the high-frequency refresh mode to the low-frequency refresh mode, the phenomenon that the brightness of the first frame of the holding frame is abnormal is improved, and the phenomenon of electric leakage of the holding frame after the first holding frame is improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a driving method and a display device. Background Art

[0002] In the related art, due to the characteristics of the driving transistor in the pixel circuit, when the high frequency is switched to the low frequency, there will be a phenomenon that the brightness of the first frame of the holding frame is suddenly increased. The reason for this phenomenon may be that in the holding frame, there is suddenly no data voltage written into the pixel circuit, resulting in the two moments of refresh and hold, and the pixel hysteresis characteristics are not restored. This phenomenon makes the VRR (frequency switching difference) of the screen difficult to debug. Summary of the invention

[0003] The main purpose of the present invention is to provide a driving method and a display device to solve the problem in the related art that when high frequency is switched to low frequency, the brightness of the first frame of the frame is suddenly increased and the screen has VRR.

[0004] In one aspect, an embodiment of the present invention provides a driving method, which is applied to a display device, wherein the display device includes a display panel, and the display panel includes a plurality of pixel circuits; the pixel circuit includes a driving circuit and a compensation control circuit; the control end of the driving circuit is electrically connected to a first node; the compensation control circuit is electrically connected to the compensation control end and the first node, respectively, and is used to perform threshold voltage compensation on a driving transistor included in the driving circuit under the control of a compensation control signal provided by the compensation control end; the display device also includes a first GOA module; the first GOA module is electrically connected to a first high voltage end and a first low voltage end, respectively, and is used to provide the compensation control end with the compensation control signal according to a first high voltage provided by the first high voltage end and a first low voltage provided by the first low voltage end; the driving method includes:

[0005] When it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to a first number threshold, in a holding frame set after the N+1 refresh frames, the first high voltage and / or the first low voltage is controlled and adjusted according to a brightness range of the display panel;

[0006] N is a natural number, and the first number threshold is a natural number.

[0007] Optionally, the step of controlling and adjusting the first high voltage and / or the first low voltage includes:

[0008] Controlling that in a hold frame arranged after the N+1 refresh frames, the voltage value of the first high voltage is greater than the voltage value of the first high voltage in the refresh frame; and / or,

[0009] It is controlled that in a hold frame arranged after the N+1 refresh frames, a voltage value of the first low voltage is smaller than a voltage value of the first low voltage in the refresh frame.

[0010] Optionally, in at least two holding frames arranged after the N+1 refresh frames, voltage values ​​of the first high voltage are different from each other; and / or,

[0011] In at least two hold frames among the hold frames arranged after the N+1 refresh frames, voltage values ​​of the first low voltage are different from each other.

[0012] Optionally, the driving method described in at least one embodiment of the present invention includes:

[0013] According to a brightness test performed on the display panel in advance, a first compensation voltage comparison table and a second compensation voltage comparison table are obtained in advance according to the test results; the first compensation voltage comparison table records the first compensation voltage values ​​corresponding to different holding frames in different brightness ranges; the second compensation voltage comparison table records the second compensation voltage values ​​corresponding to different holding frames in different brightness ranges;

[0014] When it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to the first number threshold, in the holding frame set after the N+1 refresh frames, according to the brightness range of the display panel and the corresponding first compensation voltage value in the first compensation voltage comparison table, the first high voltage is adjusted, and / or the first low voltage is adjusted according to the corresponding second compensation voltage value in the second compensation voltage comparison table.

[0015] Optionally, the pixel circuit further includes a first initialization circuit; the first initialization circuit is electrically connected to the first initial control terminal, the first initial voltage terminal and the first node respectively, and is used to write the first initial voltage provided by the first initial voltage terminal into the first node under the control of the first initial control signal provided by the first initial control terminal; the first GOA module is also used to provide the first initial control signal to the first initial control terminal; the driving method further includes:

[0016] When it is determined that the display panel enters a holding frame after A+1 refresh frames, and A is greater than or equal to a second numerical threshold, in a holding frame set after the A+1 refresh frames, adjusting the first initial voltage according to a brightness range of the display panel;

[0017] A is a natural number, and the second number threshold is a natural number.

[0018] Optionally, the step of adjusting the first initial voltage includes:

[0019] The control is performed so that, in a hold frame arranged after the A+1 refresh frames, a voltage value of the first initial voltage is smaller than a voltage value of the first initial voltage in the refresh frame.

[0020] Optionally, the pixel circuit further includes a data writing circuit, which is electrically connected to the scanning end, the data line and the second end of the driving circuit respectively, and is used to write the data voltage provided by the data line into the second end of the driving circuit under the control of the scanning signal provided by the scanning end; the display device further includes a second GOA module, which is electrically connected to the second high voltage end and the second low voltage end respectively, and is used to provide a scanning signal to the scanning end according to the second high voltage provided by the second high voltage end and the second low voltage provided by the second low voltage end; the driving method further includes:

[0021] When it is determined that the display panel enters a holding frame after C+1 refresh frames, and C is greater than or equal to a third numerical threshold, in a holding frame set after the C+1 refresh frames, the second high voltage and / or the second low voltage is controlled and adjusted according to a brightness range of the display panel;

[0022] C is a natural number, and the third threshold value is a natural number.

[0023] Optionally, the step of controlling and adjusting the second high voltage and / or the second low voltage includes:

[0024] Controlling that in a hold frame arranged after the C+1 refresh frames, the voltage value of the second high voltage is greater than the voltage value of the second high voltage in the refresh frame; and / or,

[0025] The control is performed so that, in a hold frame arranged after the C+1 refresh frames, the voltage value of the second low voltage is smaller than the voltage value of the second low voltage in the refresh frame.

[0026] Optionally, in at least two holding frames arranged after the C+1 refresh frames, voltage values ​​of the second high voltage are different from each other; and / or,

[0027] In at least two hold frames among the hold frames arranged after the C+1 refresh frames, voltage values ​​of the second low voltage are different from each other.

[0028] Optionally, the pixel circuit further includes a second initialization circuit; the second initialization circuit is electrically connected to the second initial control terminal, the second initial voltage terminal and the first pole of the light-emitting element, respectively, and is used to write the second initial voltage provided by the second initial voltage terminal into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control terminal; the display device further includes a third GOA module; the third GOA module is electrically connected to the third high voltage terminal and the third low voltage terminal, respectively, and is used to provide the second initial control signal to the second initial control terminal according to the third high voltage provided by the third high voltage terminal and the third low voltage provided by the third low voltage terminal; the driving method further includes:

[0029] When it is determined that the display panel enters a holding frame after D+1 refresh frames, and D is greater than or equal to a fourth number threshold, in a holding frame set after the D+1 refresh frames, the third high voltage and / or the third low voltage is controlled and adjusted according to a brightness range of the display panel;

[0030] D is a natural number, and the fourth number threshold is a natural number.

[0031] Optionally, the step of controlling and adjusting the third high voltage and / or the third low voltage includes:

[0032] Controlling that in a hold frame arranged after the D+1 refresh frames, the voltage value of the third high voltage is smaller than the voltage value of the third high voltage in the refresh frame; and / or,

[0033] The voltage value of the third low voltage is controlled to be greater than the voltage value of the third low voltage in the refresh frame in the hold frame after the D+1 refresh frames.

[0034] Optionally, in at least two holding frames arranged after the D+1 refresh frames, voltage values ​​of the third high voltage are different from each other; and / or,

[0035] In at least two hold frames among the hold frames arranged after the D+1 refresh frames, voltage values ​​of the third low voltage are different from each other.

[0036] Optionally, the driving method described in at least one embodiment of the present invention further includes: when it is determined that the display panel enters a holding frame after E+1 refresh frames, and E is greater than or equal to a fifth number threshold, in a holding frame set after the E+1 refresh frames, adjusting the second initial voltage according to a brightness range of the display panel;

[0037] E is a natural number, and the fifth threshold value is a natural number.

[0038] Optionally, the step of adjusting the second initial voltage includes:

[0039] The control is performed so that, in a hold frame arranged after the E+1 refresh frames, the voltage value of the second initial voltage is greater than the voltage value of the second initial voltage in the refresh frame.

[0040] Optionally, the pixel circuit further includes a third initialization circuit; the third initialization circuit is electrically connected to the second initial control terminal, the third initial voltage terminal and the first terminal of the driving circuit respectively, and is used to write the third initial voltage provided by the third initial voltage terminal into the first terminal of the driving circuit under the control of the second initial control signal; the driving method further includes:

[0041] When it is determined that the display panel enters a holding frame after F+1 refresh frames, and F is greater than or equal to a sixth number threshold, in a first holding frame set after the F+1 refresh frames, adjusting the third initial voltage according to a brightness range of the display panel;

[0042] F is a natural number, and the sixth threshold value is a natural number.

[0043] Optionally, the step of adjusting the third initial voltage includes:

[0044] The voltage value of the third initial voltage is controlled to be greater than the voltage value of the third initial voltage in the refresh frame in the first hold frame after the F+1 refresh frames.

[0045] Optionally, the pixel circuit further includes a first light-emitting control circuit and a second light-emitting control circuit; the first light-emitting control circuit is electrically connected to the light-emitting control terminal, the first terminal of the driving circuit and the first voltage terminal respectively, and is used to control the connection between the first voltage terminal and the first terminal of the driving circuit under the control of the light-emitting control signal provided by the light-emitting control terminal; the second light-emitting control circuit is electrically connected to the light-emitting control terminal, the second terminal of the driving circuit and the first pole of the light-emitting element respectively, and is used to control the connection between the second terminal of the driving circuit and the first pole of the light-emitting element under the control of the light-emitting control signal; the display device further includes a fourth GOA module; the fourth GOA module is electrically connected to a fourth high voltage terminal and a fourth low voltage terminal respectively, and is used to provide the light-emitting control signal to the light-emitting control terminal according to a fourth high voltage provided by the fourth high voltage terminal and a fourth low voltage provided by the fourth low voltage terminal; the driving method further includes:

[0046] When it is determined that the display panel enters a holding frame after G+1 refresh frames, and G is greater than or equal to a seventh number threshold, in a holding frame set after the G+1 refresh frames, the fourth high voltage and / or the fourth low voltage is controlled and adjusted according to a brightness range of the display panel;

[0047] G is a natural number, and the seventh threshold value is a natural number.

[0048] Optionally, the step of controlling and adjusting the fourth high voltage and / or the fourth low voltage includes:

[0049] Controlling that in a hold frame arranged after the G+1 refresh frames, the voltage value of the fourth high voltage is greater than the voltage value of the fourth high voltage in the refresh frame; and / or,

[0050] The fourth low voltage is controlled to have a voltage value that is smaller than a voltage value of the fourth low voltage in the refresh frame in a hold frame that is set after the G+1 refresh frames.

[0051] Optionally, in at least two holding frames of the holding frames arranged after the G+1 refresh frames, voltage values ​​of the fourth high voltage are different from each other; and / or,

[0052] In at least two hold frames among the hold frames arranged after the G+1 refresh frames, voltage values ​​of the fourth low voltage are different from each other.

[0053] Optionally, the pixel circuit includes a data writing circuit, a second initialization circuit, a first light-emitting control circuit and a second light-emitting control circuit; the data writing circuit is used to write the data voltage into the second end of the driving circuit under the control of the scanning signal provided by the scanning end; the second initialization circuit writes the second initial voltage into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control end; the first light-emitting control circuit controls the connection between the first voltage end and the first end of the driving circuit under the control of the light-emitting control signal provided by the light-emitting control end; the second light-emitting control circuit controls the connection between the second end of the driving circuit and the first pole of the light-emitting element under the control of the light-emitting control signal; the display device also includes a fifth GOA module; the fifth GOA module is electrically connected to the fifth high voltage end and the fifth low voltage end, respectively, and is used to provide a scanning signal to the scanning end, a second initial control signal to the second initial control end, and the light-emitting control signal to the light-emitting control end according to the fifth high voltage provided by the fifth high voltage end and the fifth low voltage provided by the fifth low voltage end; the driving method includes:

[0054] When it is determined that the display panel enters a holding frame after H+1 refresh frames, and H is greater than or equal to an eighth number threshold, in a holding frame set after the H+1 refresh frames, the fifth high voltage and / or the fifth low voltage is controlled and adjusted according to the brightness range of the display panel;

[0055] H is a natural number, and the eighth number threshold is a natural number.

[0056] Optionally, the step of controlling and adjusting the fifth high voltage and / or the fifth low voltage includes:

[0057] Controlling, in a hold frame arranged after the H+1 refresh frames, that the voltage value of the fifth high voltage is smaller than the voltage value of the fifth high voltage in the refresh frame; and / or,

[0058] The control is performed so that, in a hold frame arranged after the H+1 refresh frames, the voltage value of the fifth low voltage is greater than the voltage value of the fifth low voltage in the refresh frame.

[0059] Optionally, in at least two holding frames arranged after the H+1 refresh frames, voltage values ​​of the fifth high voltage are different from each other; and / or,

[0060] In at least two hold frames among the hold frames arranged after the H+1 refresh frames, voltage values ​​of the fifth low voltage are different from each other.

[0061] In a second aspect, an embodiment of the present invention provides a display device, comprising a voltage control module, a first GOA module and a display panel; the display panel comprises a plurality of rows and columns of pixel circuits; the pixel circuit comprises a driving circuit and a compensation control circuit; the control end of the driving circuit is electrically connected to a first node; the compensation control circuit is electrically connected to a compensation control end and the first node, respectively, and is used to perform threshold voltage compensation on a driving transistor included in the driving circuit under the control of a compensation control signal provided by the compensation control end;

[0062] The first GOA module is electrically connected to the first high voltage terminal and the first low voltage terminal respectively, and is used to provide the compensation control signal to the compensation control terminal according to the first high voltage provided by the first high voltage terminal and the first low voltage provided by the first low voltage terminal;

[0063] The voltage control module is used for controlling and adjusting the first high voltage and / or the first low voltage according to the brightness range of the display panel in a holding frame set after the N+1 refresh frames when it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to a first number threshold;

[0064] N is a natural number, and the first number threshold is a natural number.

[0065] The driving method and display device described in the embodiment of the present invention can improve the leakage phenomenon when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode, prevent the phenomenon of poor image quality due to increased leakage when switching to the low-frequency refresh mode, effectively change the color deviation and brightness in the low-frequency refresh mode, improve the brightness abnormality of the first frame of the holding frame when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode, and improve the leakage phenomenon of the holding frame after the first frame. . BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 is a structural diagram of at least one embodiment of a pixel circuit;

[0067] Figure 2 This is the structural diagram of the first GOA module;

[0068] Figure 3 is a circuit diagram of at least one embodiment of the pixel circuit;

[0069] Figure 4 is a graph showing the relationship between the gate-source voltage and the conduction capability of the second transistor in the pixel circuit;

[0070] Figure 5 is a flow chart for determining a refresh frame count value Count_R;

[0071] Figure 6 is a comparison table of frame states and corresponding first high voltage values ​​Vgh1;

[0072] Figure 7 is a comparison table of frame states and corresponding first high voltage values ​​Vgh1;

[0073] Figure 8 is a waveform diagram of the first high voltage value Vgh1 in different frames;

[0074] Fig. 9 is a schematic diagram of at least one embodiment of a compensation voltage value comparison table;

[0075] Fig.10 is a structural diagram of at least one embodiment of a pixel circuit;

[0076] Fig.11 is a structural diagram of at least one embodiment of a pixel circuit;

[0077] Fig.12 This is the structural diagram of the second GOA module;

[0078] Fig.13 is a structural diagram of at least one embodiment of a pixel circuit;

[0079] Fig.14 This is the structural diagram of the third GOA module;

[0080] Fig.15A is a structural diagram of at least one embodiment of a pixel circuit;

[0081] Fig. 15B This is the structural diagram of the fourth GOA module;

[0082] Fig.16 is a circuit diagram of at least one embodiment of the pixel circuit. DETAILED DESCRIPTION

[0083] 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.

[0084] 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.

[0085] 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.

[0086] The driving method described in the embodiment of the present invention is applied to a display device, wherein the display device includes a display panel; the display panel includes a plurality of pixel circuits; the pixel circuit includes a driving circuit and a compensation control circuit; the control end of the driving circuit is electrically connected to a first node; the compensation control circuit is electrically connected to the compensation control end and the first node, respectively, and is used to perform threshold voltage compensation on the driving transistor included in the driving circuit under the control of a compensation control signal provided by the compensation control end; the display device also includes a first GOA (Gate On Array, a gate driving circuit arranged on an array substrate) module; the first GOA module is electrically connected to a first high voltage end and a first low voltage end, respectively, and is used to provide the compensation control end with the compensation control signal according to a first high voltage provided by the first high voltage end and a first low voltage provided by the first low voltage end; the driving method includes:

[0087] When it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to a first number threshold, in a holding frame set after the N+1 refresh frames, the first high voltage and / or the first low voltage is controlled and adjusted according to a brightness range of the display panel;

[0088] N is a natural number, and the first numerical threshold is a natural number.

[0089] In at least one embodiment of the present invention, N may be Count_R, and Cout_R may be a refresh frame count value.

[0090] Optionally, the first number threshold is a pre-set number threshold, for example, the first number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0091] like Figure 1 As shown, the pixel circuit includes a driving circuit 10 and a compensation control circuit 11; the control end of the driving circuit 10 is electrically connected to the first node N1;

[0092] The control end of the driving circuit 10 is electrically connected to the first node N1, the first end of the driving circuit 10 is electrically connected to the second node N2, and the second end of the driving circuit 10 is electrically connected to the third node N3;

[0093] The compensation control circuit 11 is electrically connected to the compensation control terminal EM2, the first node N1 and the third node N3 respectively, and is used to control the connection or disconnection between the first node N1 and the third node N3 under the control of the compensation control signal provided by the compensation control terminal EM2, so as to perform threshold voltage compensation on the driving transistor included in the driving circuit 10;

[0094] like Figure 2 As shown, the display device further includes a first GOA module GA1; the first GOA module GA1 is electrically connected to the first high voltage terminal VGH1 and the first low voltage terminal VGL1, respectively, and is used to provide the compensation control signal to the compensation control terminal EM2 according to the first high voltage provided by the first high voltage terminal VGH1 and the first low voltage provided by the first low voltage terminal VGL1;

[0095] When it is determined that the display panel enters the holding frame after N+1 refresh frames, and N is greater than or equal to the first number threshold, in the holding frame set after the N+1 refresh frames, according to the brightness range of the display panel, the first high voltage and / or the first low voltage are controlled and adjusted to perform brightness adjustment, so as to improve the leakage phenomenon when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode, and prevent the poor image quality caused by the aggravated leakage when switching to the low-frequency refresh mode. It can effectively change the color deviation and brightness in the low-frequency refresh mode, improve the abnormal brightness phenomenon of the first frame of the holding frame when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode, and improve the leakage phenomenon of the holding frame after the first frame holding frame.

[0096] like Figure 3 As shown, in Figure 1 Based on at least one embodiment of the pixel circuit shown, the compensation control circuit may include a second transistor T2, and the driving circuit may include a driving transistor DT;

[0097] The gate of T2 is electrically connected to EM2, the source of T2 is electrically connected to N1, and the drain of T2 is electrically connected to the drain of DT;

[0098] The gate of DT is electrically connected to N1, the source of DT is electrically connected to the second node N2, and the drain of DT is electrically connected to the third node N3;

[0099] T2 and DT are p-type transistors.

[0100] Figure 3 In at least one embodiment of the pixel circuit shown in FIG. 1 , when EM2 outputs the first low voltage signal, T2 is turned on to charge N1. The charging rate is determined by the degree of opening of T2. The relationship between the gate-source voltage Vgs2 of T2 and the conduction capability is shown in FIG. Figure 4 As shown, the larger the absolute value of Vgs2 is, the stronger the conduction ability of T2 is;

[0101] exist Figure 4 In the figure, the horizontal axis is Vgs2, and the unit is V; the vertical axis is Id2, and Id2 is the current flowing through T2, and the unit is A.

[0102] exist Figure 4 In the figure, the curve labeled L1 is the first curve, the curve labeled L2 is the second curve, and the curve labeled L3 is the third curve;

[0103] The first curve L1 corresponds to a drain-source voltage of T2 of -0.1V, the second curve L2 corresponds to a drain-source voltage of T2 of -5.1V, and the third curve L3 corresponds to a drain-source voltage of T2 of -10.1V.

[0104] Figure 3When at least one embodiment of the pixel circuit shown is working, when EM2 outputs the first high voltage signal, T2 is in a closed state. At this time, by increasing the voltage value of the first high voltage signal, more holes are absorbed at the gate of T2 due to the voltage increase, but the electrons at N1 increase, and the potential of N1 decreases, thereby increasing the screen brightness. Similarly, by reducing the voltage value of the first low voltage signal provided by VGH1, the potential of N1 can be increased, so that the screen brightness is reduced.

[0105] In a specific implementation, by adjusting the voltage value of the first high voltage signal provided by VGH1 and / or the voltage value of the first low voltage signal provided by VGL1, the potential of N1 can be controlled to be lowered, thereby improving leakage and enhancing screen brightness.

[0106] In the related art, for example, in the LTPS pixel circuit, Gamma calibration is performed at high-frequency refresh, when leakage is very small, and the screen brightness and color coordinates are calibrated. When switching to low-frequency refresh mode, leakage increases, and the brightness and color coordinates will be changed, resulting in poor image quality. Based on the above problems, at least one embodiment of the present invention improves leakage by adjusting the first high voltage and / or the first low voltage, which can effectively change color deviation and brightness, and can set the refresh frame and the hold frame separately.

[0107] In specific implementation, when the high-frequency refresh mode is switched to the low-frequency refresh mode, there will be brightness abnormalities in the first frame of the hold frame. The longer the high-frequency refresh time, the more serious the brightness abnormality of the first frame of the hold frame. When there are fewer refresh frames, the first frame of the hold frame may not be compensated. Therefore, the first count threshold Duration_th1 can be set to trigger compensation. When the refresh frame count value Count_R is greater than or equal to Duration_th1, that is, when N is greater than or equal to the first count threshold, the compensation mechanism is triggered, and different compensation voltage values ​​can be given in each hold frame. If the compensation mechanism is not triggered, only the first high voltage signal and the first low voltage signal with different voltage values ​​are provided in the refresh frame and the hold frame, respectively.

[0108] In at least one embodiment of the present invention, the step of controlling and adjusting the first high voltage and / or the first low voltage includes:

[0109] Controlling that in a hold frame arranged after the N+1 refresh frames, the voltage value of the first high voltage is greater than the voltage value of the first high voltage in the refresh frame; and / or,

[0110] Controlling, in a holding frame arranged after the N+1 refresh frames, that a voltage value of the first low voltage is smaller than a voltage value of the first low voltage in the refresh frame;

[0111] The display brightness is improved by controlling the hold frame arranged after the N+1 refresh frames.

[0112] In at least one embodiment of the present invention, in at least two holding frames arranged after the N+1 refresh frames, the voltage values ​​of the first high voltage are different from each other; and / or,

[0113] In at least two hold frames among the hold frames arranged after the N+1 refresh frames, voltage values ​​of the first low voltage are different from each other.

[0114] In a specific implementation, in at least two holding frames among the holding frames arranged after the N+1 refresh frames, the voltage values ​​of the first high voltage are different from each other; and / or, in at least two holding frames among the holding frames arranged after the N+1 refresh frames, the voltage values ​​of the first low voltage are different from each other, so that the first high voltage value and the first low voltage value can be set according to the leakage situation in different holding frames.

[0115] The first high voltage value is a voltage value of the first high voltage, and the first low voltage value is a voltage value of the first low voltage.

[0116] like Figure 5 As shown, when the previous frame is a hold frame and the current frame is a refresh frame, Count_R is set to 0;

[0117] When the previous frame is a refresh frame and the current frame is also a refresh frame, the count value of Count_R is increased by 1;

[0118] When the previous frame is a refresh frame and the current frame is a hold frame, the counting is completed.

[0119] exist Figure 6 In the example, Count_S is the hold frame count value, and Count_R is the refresh frame count value.

[0120] like Figure 6 As shown, S represents that the current frame is a hold frame, and R represents that the current frame is a refresh frame; the brightness range is the first brightness range Band1; Duration_th1 is 2;

[0121] The first frame is a hold frame, the second frame is a refresh frame, in the second frame, Count_R is 0, Count_S is 0; the second frame is a refresh frame, the third frame is a refresh frame, in the third frame, Count_R is 1, Count_S is 0; the third frame is a refresh frame, the fourth frame is a refresh frame, in the fourth frame, Count_R is 2, Count_S is 0; the fourth frame is a refresh frame, the fifth frame is a hold frame, in the fifth frame, Count_R is 2, Count_S is 1; the fifth frame is a hold frame, the sixth frame is a hold frame, in the sixth frame, Count_R is 2, Count_S is 2; the sixth frame is a hold frame, the seventh frame is a hold frame, in the sixth frame, Count_R is 2, Count_S is 3; the seventh frame is a hold frame, the eighth frame is a hold frame, in the eighth frame, Count _R is 2, Count_S is 4; the eighth frame is a hold frame, the ninth frame is a hold frame, in the ninth frame, Count_R is 2, Count_S is 5; the ninth frame is a hold frame, the tenth frame is a refresh frame, in the tenth frame, Count_R is 0, Count_S is 0; the tenth frame is a refresh frame, the eleventh frame is a hold frame, in the eleventh frame, Count_R is 0, Count_S is 1; the eleventh frame is a hold frame, the twelfth frame is a hold frame, in the twelfth frame, Count_R is 0, Count_S is 2; the twelfth frame is a hold frame, the thirteenth frame is a hold frame, in the thirteenth frame, Count_R is 0, Count_S is 3; the thirteenth frame is a hold frame, the fourteenth frame is a hold frame, in the fourteenth frame, Count_R is 0, Count_S is 4;

[0122] In the fifth frame, the sixth frame, the seventh frame, the eighth frame and the ninth frame, additional compensation is performed on the first high voltage value;

[0123] In the fifth frame, the first high voltage value Vgh1 is set to R_vgh1+ΔV1-1; in the sixth frame, the first high voltage value Vgh1 is set to R_vgh1+ΔV1-2; in the seventh frame, the first high voltage value Vgh1 is set to R_vgh1+ΔV1-3; in the eighth frame, the first high voltage value Vgh1 is set to R_vgh1+ΔV1-4; in the ninth frame, the first high voltage value Vgh1 is set to R_vgh1+ΔV1-5;

[0124] Wherein, R_vgh1 is the first refresh high voltage value, ΔV1-1 is the first compensation voltage value corresponding to the first brightness range Band1 and Count_S of 1, ΔV1-2 is the first compensation voltage value corresponding to the first brightness range Band1 and Count_S of 2, ΔV1-3 is the first compensation voltage value corresponding to the first brightness range Band1 and Count_S of 3, ΔV1-4 is the first compensation voltage value corresponding to the first brightness range Band1 and Count_S of 4, ΔV1-5 is the first compensation voltage value corresponding to the first brightness range Band1 and Count_S of 5;

[0125] ΔV1-1, ΔV1-2, ΔV1-3, ΔV1-4, and ΔV1-5 may be different from each other;

[0126] In the second frame, the third frame and the fourth frame, the first high voltage value Vgh1 may be R_vgh1;

[0127] In the tenth frame, the first high voltage value Vgh1 may be R_vgh1;

[0128] In the eleventh frame, the twelfth frame, the thirteenth frame, and the fourteenth frame, the first high voltage value Vgh1 may be S_vgh1 , which is the first maintained high voltage value.

[0129] like Figure 7 As shown, S represents that the current frame is a hold frame, and R represents that the current frame is a refresh frame; the brightness range is the first brightness range Band1; Duration_th1 is 3;

[0130] The first frame is a hold frame, the second frame is a refresh frame, in the second frame, Count_R is 0, Count_S is 0; the second frame is a refresh frame, the third frame is a refresh frame, in the third frame, Count_R is 1, Count_S is 0; the third frame is a refresh frame, the fourth frame is a refresh frame, in the fourth frame, Count_R is 2, Count_S is 0; the fourth frame is a refresh frame, the fifth frame is a hold frame, in the fifth frame, Count_R is 2, Count_S is 1; the fifth frame is a hold frame, the sixth frame is a hold frame, in the sixth frame, Count_R is 2, Count_S is 2; the sixth frame is a hold frame, the seventh frame is a hold frame, in the sixth frame, Count_R is 2, Count_S is 3; the seventh frame is a hold frame, the eighth frame is a hold frame, in the eighth frame, Count _R is 2, Count_S is 4; the eighth frame is a hold frame, the ninth frame is a hold frame, in the ninth frame, Count_R is 2, Count_S is 5; the ninth frame is a hold frame, the tenth frame is a refresh frame, in the tenth frame, Count_R is 0, Count_S is 0; the tenth frame is a refresh frame, the eleventh frame is a hold frame, in the eleventh frame, Count_R is 0, Count_S is 1; the eleventh frame is a hold frame, the twelfth frame is a hold frame, in the twelfth frame, Count_R is 0, Count_S is 2; the twelfth frame is a hold frame, the thirteenth frame is a hold frame, in the thirteenth frame, Count_R is 0, Count_S is 3; the thirteenth frame is a hold frame, the fourteenth frame is a hold frame, in the fourteenth frame, Count_R is 0, Count_S is 4;

[0131] In the second frame, the third frame and the fourth frame, the first high voltage value Vgh1 is set to R_vgh1;

[0132] In the tenth frame, the first high voltage value Vgh1 is set to R_vgh1;

[0133] In the fifth frame, the sixth frame, the seventh frame, the eighth frame, the ninth frame, the eleventh frame, the twelfth frame, the thirteenth frame, and the fourteenth frame, the first high voltage value Vgh1 is set to S_vgh1.

[0134] In at least one embodiment of the present invention, Duration_th1 may be set to 0;

[0135] When switching from high-frequency refresh mode to low-frequency refresh mode, if the screen flickers, frame-by-frame compensation is needed, you can set Duration_th1 to 0. When switching to low-frequency switching mode, the compensation mechanism is directly triggered, and then each frame is compensated independently to improve Flicker (flicker) and VRR (frequency switching difference).

[0136] like Figure 8As shown, the first refresh frame FS1, the first hold frame FB1 and the second hold frame FB2 are arranged in sequence;

[0137] In the first refresh frame FS1, the first high voltage value Vgh1 is V1;

[0138] In the first holding frame FB1, the first high voltage value Vgh1 is V2;

[0139] In the second holding frame FB2, the first high voltage value Vgh1 is V3;

[0140] V3 is greater than V2, and V2 is greater than V1, so that in the hold frame, the screen brightness is set to be greater than the screen brightness in the refresh frame.

[0141] The driving method described in at least one embodiment of the present invention includes:

[0142] According to a brightness test performed on the display panel in advance, a first compensation voltage comparison table and a second compensation voltage comparison table are obtained in advance according to the test results; the first compensation voltage comparison table records the first compensation voltage values ​​corresponding to different holding frames in different brightness ranges; the second compensation voltage comparison table records the second compensation voltage values ​​corresponding to different holding frames in different brightness ranges;

[0143] When it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to the first number threshold, in a holding frame set after the N+1 refresh frame, according to the brightness range of the display panel,

[0144] The first high voltage is adjusted according to the corresponding first compensation voltage value in the first compensation voltage comparison table, and / or the first low voltage is adjusted according to the corresponding second compensation voltage value in the second compensation voltage comparison table.

[0145] In the specific implementation, in order to solve the problem that the brightness of the first frame of the holding frame is abnormally high and the brightness of other frames is uneven due to leakage, it is necessary to control the brightness of the frame. By compensating the first high voltage value and / or the first low voltage value for different holding frames under different brightness ranges, the corresponding first compensation voltage comparison table can be as follows Fig. 9 shown.

[0146] exist Fig. 9 In the above, Band1 is the first brightness range, Band2 is the second brightness range, BandM is the Mth brightness range, and M is an integer greater than 2;

[0147] Under Band1,

[0148] When Count_S is equal to 1, the first compensation voltage is ΔV1-1; when Count_S is equal to 3, the first compensation voltage is ΔV1-3; when Count_S is equal to 5, the first compensation voltage is ΔV1-5; when Count_S is equal to 11, the first compensation voltage is ΔV1-11; when Count_S is greater than or equal to 119, the first compensation voltage may be ΔV1-119;

[0149] Under Band2,

[0150] When Count_S is equal to 1, the first compensation voltage is ΔV2-1; when Count_S is equal to 3, the first compensation voltage is ΔV2-3; when Count_S is equal to 5, the first compensation voltage is ΔV2-5; when Count_S is equal to 11, the first compensation voltage is ΔV2-11; when Count_S is greater than or equal to 119, the first compensation voltage may be ΔV2-119;

[0151] Under BandN,

[0152] When Count_S is equal to 1, the first compensation voltage is ΔVN-1; when Count_S is equal to 3, the first compensation voltage is ΔVN-3; when Count_S is equal to 5, the first compensation voltage is ΔVN-5; when Count_S is equal to 11, the first compensation voltage is ΔVN-11; when Count_S is greater than or equal to 119, the first compensation voltage can be ΔVN-119.

[0153] In a specific implementation, in one brightness range, the first compensation voltages corresponding to the first few holding frames and the last few holding frames can be obtained by testing, and the first compensation voltages of other frames and other brightness ranges can be obtained by bilinear interpolation.

[0154] In at least one embodiment of the present invention, the pixel circuit further includes a first initialization circuit; the first initialization circuit is electrically connected to the first initial control terminal, the first initial voltage terminal and the first node respectively, and is used to write the first initial voltage provided by the first initial voltage terminal into the first node under the control of the first initial control signal provided by the first initial control terminal; the first GOA module is also used to provide the first initial control signal to the first initial control terminal; the driving method further includes:

[0155] When it is determined that the display panel enters a holding frame after A+1 refresh frames, and A is greater than or equal to a second numerical threshold, in a holding frame set after the A+1 refresh frames, adjusting the first initial voltage according to a brightness range of the display panel;

[0156] A is a natural number, and the second number threshold is a natural number.

[0157] In at least one embodiment of the present invention, A may be equal to N, but is not limited thereto; in a specific implementation, A may not be equal to N.

[0158] Optionally, the voltage value of the first initial voltage may be a negative value.

[0159] like Fig.10 As shown, in Figure 1 Based on at least one embodiment of the pixel circuit shown, the pixel circuit further includes a first initialization circuit 101;

[0160] The first initialization circuit 101 is electrically connected to the first initial control terminal R1, the first initial voltage terminal I1 and the first node N1, respectively, and is used to write the first initial voltage Vinit1 provided by the first initial voltage terminal I1 into the first node N1 under the control of the first initial control signal provided by the first initial control terminal R1.

[0161] The first initial control signal provided by the first initial control terminal R1 may also be provided by the first GOA module. For the same pixel circuit, the compensation control signal provided by EM2 and the first initial control signal provided by R1 may be provided by different levels of first GOA circuits included in the same first GOA module.

[0162] In a specific implementation, when it is determined that the display panel enters the holding frame after A+1 refresh frames, and A is greater than or equal to the second numerical threshold, in the holding frame set after the A+1 refresh frames, the voltage value of the first initial voltage is adjusted according to the brightness range of the display panel to adjust the display brightness of the display panel, thereby preventing poor image quality due to increased leakage when switching to the low-frequency refresh mode. The color deviation and brightness in the low-frequency refresh mode can be effectively changed, and the brightness abnormality of the first frame of the holding frame that occurs when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode can be improved, and the leakage phenomenon of the holding frame after the first holding frame can be improved.

[0163] In at least one embodiment of the present invention, the step of adjusting the first initial voltage includes:

[0164] Controlling, in a holding frame set after the A+1 refresh frames, that the voltage value of the first initial voltage is smaller than the voltage value of the first initial voltage in the refresh frame, so as to lower the potential of the first node in the holding frame to control the increase of display brightness.

[0165] Optionally, the second number threshold is a preset number threshold, for example, the second number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0166] In at least one embodiment of the present invention, the pixel circuit further includes a data writing circuit, the data writing circuit is electrically connected to the scanning end, the data line and the second end of the driving circuit respectively, and is used to write the data voltage provided by the data line into the second end of the driving circuit under the control of the scanning signal provided by the scanning end; the display device further includes a second GOA module, the second GOA module is electrically connected to the second high voltage end and the second low voltage end respectively, and is used to provide a scanning signal to the scanning end according to the second high voltage provided by the second high voltage end and the second low voltage provided by the second low voltage end; the driving method further includes:

[0167] When it is determined that the display panel enters a holding frame after C+1 refresh frames, and C is greater than or equal to a third numerical threshold, in a holding frame set after the C+1 refresh frames, the second high voltage and / or the second low voltage is controlled and adjusted according to a brightness range of the display panel;

[0168] C is a natural number, and the third threshold value is a natural number.

[0169] Optionally, the third number threshold is a preset number threshold, for example, the third number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0170] Optionally, the step of controlling and adjusting the second high voltage and / or the second low voltage includes:

[0171] Controlling that in a hold frame arranged after the C+1 refresh frames, the voltage value of the second high voltage is greater than the voltage value of the second high voltage in the refresh frame; and / or,

[0172] The control is performed so that, in a hold frame arranged after the C+1 refresh frames, the voltage value of the second low voltage is smaller than the voltage value of the second low voltage in the refresh frame.

[0173] In at least one embodiment of the present invention, in at least two hold frames arranged after the C+1 refresh frames, the voltage values ​​of the second high voltage are different from each other; and / or,

[0174] In at least two hold frames among the hold frames arranged after the C+1 refresh frames, voltage values ​​of the second low voltage are different from each other.

[0175] like Fig.11 As shown, the pixel circuit further includes a data writing circuit 111;

[0176] The data writing circuit 111 is electrically connected to the scanning terminal GT, the data line DL and the second end of the driving circuit 10 respectively, and is used to write the data voltage provided by the data line DL into the second end 10 of the driving circuit under the control of the scanning signal provided by the scanning terminal GT;

[0177] like Fig.12 As shown, the display device also includes a second GOA module GA2, which is electrically connected to the second high voltage terminal VGH2 and the second low voltage terminal VGL2, respectively, and is used to provide a scanning signal to the scanning terminal GT according to the second high voltage provided by the second high voltage terminal VGH2 and the second low voltage provided by the second low voltage terminal VGL2.

[0178] Fig.11 , Fig.12 In at least one embodiment shown in FIG. 1 , when it is determined that the display panel enters a holding frame after C+1 refresh frames, and C is greater than or equal to a third threshold value, in a holding frame set after the C+1 refresh frame, according to the brightness range of the display panel,

[0179] Controlling that in a hold frame arranged after the C+1 refresh frames, the voltage value of the second high voltage is greater than the voltage value of the second high voltage in the refresh frame; and / or,

[0180] The control is performed so that, in a hold frame arranged after the C+1 refresh frames, the voltage value of the second low voltage is smaller than the voltage value of the second low voltage in the refresh frame.

[0181] In a specific implementation, when at least one embodiment of the pixel circuit is working, in a holding frame, the transistor included in the data writing circuit is in a closed state, and the potential of the scanning signal provided by the scanning end is the second high voltage. In the holding frame set after the C+1 refresh frames, by increasing the voltage value of the second high voltage, the high voltage will attract the charge of N2 and increase the potential of N2, which will increase the display brightness of the pixel circuit.

[0182] Optionally, C may be equal to N, but this is not limited to this. In a specific implementation, C may not be equal to N.

[0183] The driving method described in at least one embodiment of the present invention includes:

[0184] According to the brightness test performed on the display panel in advance, a third compensation voltage comparison table and a fourth compensation voltage comparison table are obtained in advance according to the test results; the third compensation voltage comparison table records the third compensation voltage values ​​corresponding to different holding frames in different brightness ranges; the fourth compensation voltage comparison table records the fourth compensation voltage values ​​corresponding to different holding frames in different brightness ranges;

[0185] When it is determined that the display panel enters a holding frame after C+1 refresh frames, and C is greater than or equal to the third number threshold, in a holding frame set after the C+1 refresh frame, according to the brightness range of the display panel,

[0186] The second high voltage is adjusted according to the corresponding third compensation voltage value in the third compensation voltage comparison table, and / or the second low voltage is adjusted according to the corresponding fourth compensation voltage value in the fourth compensation voltage comparison table.

[0187] In at least one embodiment of the present invention, the pixel circuit further includes a second initialization circuit; the second initialization circuit is electrically connected to the second initial control terminal, the second initial voltage terminal and the first pole of the light-emitting element, respectively, and is used to write the second initial voltage provided by the second initial voltage terminal into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control terminal; the display device further includes a third GOA module; the third GOA module is electrically connected to the third high voltage terminal and the third low voltage terminal, respectively, and is used to provide the second initial control signal to the second initial control terminal according to the third high voltage provided by the third high voltage terminal and the third low voltage provided by the third low voltage terminal; the driving method further includes:

[0188] When it is determined that the display panel enters a holding frame after D+1 refresh frames, and D is greater than or equal to a fourth number threshold, in a holding frame set after the D+1 refresh frames, the third high voltage and / or the third low voltage is controlled and adjusted according to a brightness range of the display panel;

[0189] D is a natural number, and the fourth number threshold is a natural number.

[0190] Optionally, D may be equal to N, but this is not limited to this. In a specific implementation, D may not be equal to N.

[0191] In at least one embodiment of the present invention, the step of controlling and adjusting the third high voltage and / or the third low voltage comprises:

[0192] Controlling that in a hold frame arranged after the D+1 refresh frames, the voltage value of the third high voltage is smaller than the voltage value of the third high voltage in the refresh frame; and / or,

[0193] The voltage value of the third low voltage is controlled to be greater than the voltage value of the third low voltage in the refresh frame in the hold frame after the D+1 refresh frames.

[0194] In at least one embodiment of the present invention, in at least two holding frames arranged after the D+1 refresh frames, the voltage values ​​of the third high voltage are different from each other; and / or,

[0195] In at least two hold frames among the hold frames arranged after the D+1 refresh frames, voltage values ​​of the third low voltage are different from each other.

[0196] Optionally, the fourth number threshold is a preset number threshold, for example, the fourth number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0197] In a specific implementation, the pixel circuit may further include a second initialization circuit, which writes a second initial voltage into the first electrode of the light-emitting element under the control of a second initial control signal; the second initial control signal is provided by a third GOA module according to a third high voltage and a third low voltage;

[0198] When it is determined that the display panel enters a holding frame after D+1 refresh frames, and D is greater than or equal to a fourth number threshold, in a holding frame set after the D+1 refresh frames, the voltage value of the third high voltage is controlled to be smaller than the voltage value of the third high voltage in the refresh frame; and / or, the voltage value of the third low voltage is controlled to be larger than the voltage value of the third low voltage in the refresh frame in the holding frame set after the D+1 refresh frames.

[0199] In a specific implementation, in the holding frame, when the potential of the second initial control signal is the third low voltage value (the third low voltage value is the voltage value of the third low voltage), the transistor included in the second initialization circuit is in an on state, and the third low voltage value controls the degree to which the second initial voltage resets the first pole of the light-emitting element. When the third low voltage value is smaller, the reset is more saturated, and the display brightness of the light-emitting element is darker.

[0200] Optionally, the voltage value of the second initial voltage may be a negative value.

[0201] like Fig.13 As shown, the pixel circuit further includes a light emitting element E1 and a second initialization circuit 131;

[0202] The second initialization circuit 131 is electrically connected to the second initial control terminal RH, the second initial voltage terminal I2 and the first electrode of the light emitting element E1 respectively, and is used to write the second initial voltage Vinit2 provided by the second initial voltage terminal I2 into the first electrode of the light emitting element E1 under the control of the second initial control signal provided by the second initial control terminal RH;

[0203] like Fig.14As shown, the display device further includes a third GOA module GA3;

[0204] The third GOA module GA3 is electrically connected to the third high voltage terminal VGH3 and the third low voltage terminal VGL3 respectively, and is used to provide the second initial control signal to the second initial control terminal RH according to the third high voltage provided by the third high voltage terminal VGH3 and the third low voltage provided by the third low voltage terminal VGL3.

[0205] The driving method according to at least one embodiment of the present invention further comprises: when it is determined that the display panel enters a holding frame after E+1 refresh frames, and E is greater than or equal to a fifth number threshold, in a holding frame set after the E+1 refresh frames, adjusting the second initial voltage according to a brightness range of the display panel;

[0206] E is a natural number, and the fifth threshold value is a natural number.

[0207] Optionally, E may be equal to N, but this is not limited to this. In a specific implementation, E may not be equal to N.

[0208] Optionally, the fifth number threshold is a preset number threshold, for example, the fifth number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0209] In at least one embodiment of the present invention, the step of adjusting the second initial voltage includes:

[0210] The control is performed so that, in a hold frame arranged after the E+1 refresh frames, the voltage value of the second initial voltage is greater than the voltage value of the second initial voltage in the refresh frame.

[0211] Fig.13 , Fig.14 When at least one embodiment shown is in operation, when it is determined that the display panel enters a holding frame after E+1 refresh frames, and E is greater than or equal to the fifth number threshold, in the holding frame set after the E+1 refresh frames, according to the brightness range of the display panel, the voltage value of the second initial voltage is controlled to be greater than the voltage value of the second initial voltage in the refresh frame, and the luminous brightness of E1 is increased by controlling the potential of the first electrode of E1.

[0212] In at least one embodiment of the present invention, the pixel circuit further includes a third initialization circuit; the third initialization circuit is electrically connected to the second initial control terminal, the third initial voltage terminal and the first terminal of the driving circuit respectively, and is used to write the third initial voltage provided by the third initial voltage terminal into the first terminal of the driving circuit under the control of the second initial control signal; the driving method further includes:

[0213] When it is determined that the display panel enters a holding frame after F+1 refresh frames, and F is greater than or equal to a sixth number threshold, in a first holding frame set after the F+1 refresh frames, adjusting the third initial voltage according to a brightness range of the display panel;

[0214] F is a natural number, and the sixth threshold value is a natural number.

[0215] Optionally, F may be equal to N, but this is not limited to this. In a specific implementation, F may not be equal to N.

[0216] Optionally, the sixth number threshold is a preset number threshold, for example, the sixth number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0217] In at least one embodiment of the present invention, the step of adjusting the third initial voltage includes:

[0218] The voltage value of the third initial voltage is controlled to be greater than the voltage value of the third initial voltage in the refresh frame in the first hold frame after the F+1 refresh frames.

[0219] like Fig.15A As shown, the pixel circuit further includes a third initialization circuit 151;

[0220] The third initialization circuit 151 is electrically connected to the second initial control terminal RH, the third initial voltage terminal I3 and the first terminal of the driving circuit 10 respectively, and is used to write the third initial voltage Vinit3 provided by the third initial voltage terminal I3 into the first terminal of the driving circuit 10 under the control of the second initial control signal.

[0221] Fig.15A At least one embodiment of the pixel circuit shown in the figure is in operation, when it is determined that the display panel enters a holding frame after F+1 refresh frames, and F is greater than or equal to a sixth number threshold, in a first holding frame set after the F+1 refresh frames, the voltage value of the third initial voltage Vinit3 is controlled to be greater than the voltage value of the third initial voltage Vinit3 in the refresh frame;

[0222] In the holding frame, when the potential of the second initial control signal is the third low voltage value (the third low voltage value is the voltage value of the third low voltage), the transistor included in the third initialization circuit 151 is turned on, and the voltage value of the third initial voltage Vinit3 is increased in the first holding frame set after the F+1 refresh frames to reduce the gate-source voltage of the driving transistor included in the driving circuit, thereby improving the positive bias phenomenon of the threshold voltage of the driving transistor.

[0223] Optionally, the voltage value of the third initial voltage Vinit3 may be a positive value.

[0224] In at least one embodiment of the present invention, the pixel circuit further includes a first light-emitting control circuit and a second light-emitting control circuit; the first light-emitting control circuit is electrically connected to the light-emitting control terminal, the first terminal of the driving circuit and the first voltage terminal respectively, and is used to control the connection between the first voltage terminal and the first terminal of the driving circuit under the control of the light-emitting control signal provided by the light-emitting control terminal; the second light-emitting control circuit is electrically connected to the light-emitting control terminal, the second terminal of the driving circuit and the first pole of the light-emitting element respectively, and is used to control the connection between the second terminal of the driving circuit and the first pole of the light-emitting element under the control of the light-emitting control signal; the display device further includes a fourth GOA module; the fourth GOA module is electrically connected to the fourth high voltage terminal and the fourth low voltage terminal respectively, and is used to provide the light-emitting control signal to the light-emitting control terminal according to the fourth high voltage provided by the fourth high voltage terminal and the fourth low voltage provided by the fourth low voltage terminal; the driving method further includes:

[0225] When it is determined that the display panel enters a holding frame after G+1 refresh frames, and G is greater than or equal to a seventh number threshold, in a holding frame set after the G+1 refresh frames, the fourth high voltage and / or the fourth low voltage is controlled and adjusted according to a brightness range of the display panel;

[0226] G is a natural number, and the seventh threshold value is a natural number.

[0227] Optionally, G may be equal to N, but this is not limited to this. In a specific implementation, G may not be equal to N.

[0228] Optionally, the seventh number threshold is a preset number threshold, for example, the seventh number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0229] In at least one embodiment of the present invention, the step of controlling and adjusting the fourth high voltage and / or the fourth low voltage comprises:

[0230] Controlling that in a hold frame arranged after the G+1 refresh frames, the voltage value of the fourth high voltage is greater than the voltage value of the fourth high voltage in the refresh frame; and / or,

[0231] The fourth low voltage is controlled to have a voltage value that is smaller than a voltage value of the fourth low voltage in the refresh frame in a hold frame that is set after the G+1 refresh frames.

[0232] like Fig. 15B As shown, the display device further includes a fourth GOA module GA4;

[0233] The fourth GOA module GA4 is electrically connected to the fourth high voltage terminal VGH4 and the fourth low voltage terminal VGL4 respectively, and is used to provide the light control signal to the light control terminal EM according to the fourth high voltage provided by the fourth high voltage terminal VGH4 and the fourth low voltage provided by the fourth low voltage terminal VGL4.

[0234] In a specific implementation, the pixel circuit may further include a first light-emitting control circuit and a second light-emitting control circuit. In a light-maintaining time period included in a maintaining frame, the first light-emitting control circuit and the second light-emitting control circuit are turned on under the control of a light-emitting control signal provided by a light-emitting control terminal to perform light-emitting control. In a maintaining frame provided after the G+1 refresh frames, the voltage value of the fourth low voltage is controlled to be smaller than the voltage value of the fourth low voltage in the refresh frame to improve the voltage conduction efficiency of the transistor included in the light-emitting control circuit, so as to be able to improve the light-emitting brightness of the light-emitting element.

[0235] In at least one embodiment of the present invention, in at least two holding frames of the holding frames arranged after the G+1 refresh frames, the voltage values ​​of the fourth high voltage are different from each other; and / or,

[0236] In at least two hold frames among the hold frames arranged after the G+1 refresh frames, voltage values ​​of the fourth low voltage are different from each other.

[0237] In at least one embodiment of the present invention, the pixel circuit includes a data writing circuit, a second initialization circuit, a first light-emitting control circuit and a second light-emitting control circuit; the data writing circuit is used to write the data voltage into the second end of the driving circuit under the control of the scanning signal provided by the scanning end; the second initialization circuit writes the second initial voltage into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control end; the first light-emitting control circuit controls the connection between the first voltage end and the first end of the driving circuit under the control of the light-emitting control signal provided by the light-emitting control end; the second light-emitting control circuit controls the connection between the second end of the driving circuit and the first pole of the light-emitting element under the control of the light-emitting control signal; the display device also includes a fifth GOA module; the fifth GOA module is electrically connected to the fifth high voltage end and the fifth low voltage end, respectively, and is used to provide a scanning signal to the scanning end, a second initial control signal to the second initial control end, and the light-emitting control signal to the light-emitting control end according to the fifth high voltage provided by the fifth high voltage end and the fifth low voltage provided by the fifth low voltage end; the driving method includes:

[0238] When it is determined that the display panel enters a holding frame after H+1 refresh frames, and H is greater than or equal to an eighth number threshold, in a holding frame set after the H+1 refresh frames, the fifth high voltage and / or the fifth low voltage is controlled and adjusted according to the brightness range of the display panel;

[0239] H is a natural number, and the eighth number threshold is a natural number.

[0240] Optionally, the eighth number threshold is a preset number threshold, for example, the eighth number threshold may be 0, 1, 2, 3 or 4, but is not limited thereto.

[0241] In at least one embodiment of the present invention, the step of controlling and adjusting the fifth high voltage and / or the fifth low voltage comprises:

[0242] Controlling, in a hold frame arranged after the H+1 refresh frames, that the voltage value of the fifth high voltage is smaller than the voltage value of the fifth high voltage in the refresh frame; and / or,

[0243] The control is performed so that, in a hold frame arranged after the H+1 refresh frames, the voltage value of the fifth low voltage is greater than the voltage value of the fifth low voltage in the refresh frame.

[0244] In at least one embodiment of the present invention, in at least two holding frames arranged after the H+1 refresh frames, the voltage values ​​of the fifth high voltage are different from each other; and / or,

[0245] In at least two hold frames among the hold frames arranged after the H+1 refresh frames, voltage values ​​of the fifth low voltage are different from each other.

[0246] Optionally, H may be equal to N, but this is not limited to this. In a specific implementation, H may not be equal to N.

[0247] In a specific implementation, the fifth GOA module may include a first fifth GOA module, a second fifth GOA module and a third fifth GOA module; the first fifth GOA module provides a scanning signal to the scanning end according to the fifth high voltage and the fifth low voltage; the second fifth GOA module provides a second initial control signal to the second initial control end according to the fifth high voltage and the fifth low voltage; the third fifth GOA module provides a control signal to the light-emitting control end according to the fifth high voltage and the fifth low voltage; when it is determined that the display panel enters a holding frame after H+1 refresh frames, and H is greater than or equal to an eighth times threshold, in a holding frame set after the H+1 refresh frames, according to the brightness range of the display panel, the voltage value of the fifth high voltage is controlled to be less than the voltage value of the fifth high voltage in the refresh frame; and / or, the voltage value of the fifth low voltage is controlled to be greater than the voltage value of the fifth low voltage in the refresh frame in the holding frame set after the H+1 refresh frames, so as to improve the display brightness of the pixel circuit in the holding frame.

[0248] like Fig.16 As shown, in Fig.15A On the basis of at least one embodiment of the pixel circuit shown, the driving circuit includes a driving transistor T3, the compensation control circuit includes a second transistor T2, the first initialization circuit includes a first transistor T1, the data writing circuit includes a fourth transistor T4, the first light emitting control circuit includes a fifth transistor T5, the second light emitting control circuit includes a sixth transistor T6, the second initialization circuit includes a seventh transistor T7, and the third initialization circuit includes an eighth transistor T8; the light emitting element is an organic light emitting diode; at least one embodiment of the pixel circuit further includes a first capacitor C1;

[0249] The gate of T1 is electrically connected to the first initial control terminal R1, the source of T1 is electrically connected to the first initial voltage terminal I1, and the drain of T1 is electrically connected to the first node N1;

[0250] The gate of T2 is electrically connected to the compensation control terminal EM2, the source of T2 is electrically connected to the first node N1, and the drain of T2 is electrically connected to the third node N3;

[0251] The gate of T3 is electrically connected to the first node N1, the source of T3 is electrically connected to the second node N2, and the drain of T3 is electrically connected to the third node N3;

[0252] The gate of T4 is electrically connected to the scanning terminal GT, the source of T4 is electrically connected to the data line DL, and the drain of T4 is electrically connected to the second node N2;

[0253] The gate of T5 is electrically connected to the light emitting control terminal EM, the source of T5 is electrically connected to the power supply voltage terminal VDD, and the drain of T5 is electrically connected to the second node N2;

[0254] The gate of T6 is electrically connected to the light emitting control terminal EM, the source of T6 is electrically connected to the third node N3, the drain of T6 is electrically connected to the anode of O1; the cathode of O1 is electrically connected to the low voltage terminal VSS;

[0255] The gate of T7 is electrically connected to the second initial control terminal RH, the source of T7 is electrically connected to the second initial voltage terminal I2, and the drain of T7 is electrically connected to the anode of O1;

[0256] The gate of T8 is electrically connected to the second initial control terminal RH, the source of T8 is electrically connected to the third initial voltage terminal I3, and the drain of T8 is electrically connected to the second node N2; I3 is used to provide the third initial voltage Vinit3;

[0257] A first end of C1 is electrically connected to the first node N1 , and a second end of C1 is electrically connected to a power supply voltage terminal.

[0258] exist Fig.16 In at least one embodiment shown, the first voltage terminal is a power supply voltage terminal VDD;

[0259] All transistors are p-type transistors, and all transistors are LTPS (low temperature polysilicon) transistors.

[0260] In the related art, it is difficult for pixel circuits to achieve low-frequency display and maintain voltage. At least one embodiment of the present invention provides an LTPS pixel circuit, which adds T8, and in the hold frame, through Vinit3 (the voltage value of Vinit3 is a positive value) to effectively maintain the data voltage charged at N1, and in the refresh frame and the hold frame, the reset degree can be adjusted to improve the FFR (First Frame Rate, first frame brightness).

[0261] Fig.16At least one embodiment of the pixel circuit shown in the figure has flickering on the screen when switching to a low frequency after the module is produced, and flickering also occurs when switching between different frequencies. Flicker is caused by the inconsistency between the brightness of the refresh frame and the hold frame, which is the same as the VRR mechanism. Regarding the frequency switching difference (VRR), it is manifested as a difference in brightness and color coordinates before and after the frequency switching. Taking the switch from 120Hz to 30Hz as an example, when the display refresh frequency is 120Hz, each frame is refreshed. When the display refresh frequency is 30Hz, 1 frame is refreshed and 3 frames are held. In the refresh frame, the threshold voltage Vth of the driving transistor will be negatively biased, and Vth will return to stability in the hold frame. When the display refresh frequency is 120Hz, each frame Vth will be negatively biased. When the display refresh frequency is 30Hz, Vth will be negatively biased in the refresh frame, and Vth will tend to be stable in the hold frame. This refresh frame is different from the hold frame Vth. When the display refresh frequency is switched, a brightness difference will occur, which can be easily captured by the human eye. By using the on-bias function to make Vth negatively biased once more in the hold frame, the difference between the refresh frame and the hold frame Vth can be reduced, and the VRR can be improved. However, through the on-bias operation, Vth cannot be completely consistent in the refresh frame and the hold frame. The reason is that in the hold frame, no data is written, and N3 cannot be reset, which makes the gate-source voltage of the driving transistor larger, making the negative bias of Vth smaller in the hold frame. Therefore, the pixel circuit cannot completely eliminate the flicker and VRR of the screen. In addition, due to the characteristics of the driving transistor, when switching from high frequency to low frequency, there will be a phenomenon that the brightness of the first frame of the hold frame is suddenly increased. The reason for this phenomenon may be that in the hold frame, no data voltage is suddenly written into the pixel circuit, resulting in the pixel hysteresis characteristics not being restored at the two moments of refresh and hold. This phenomenon makes the VRR of the screen more difficult to debug.

[0262] Based on the above problems, in the driving method described in at least one embodiment of the present invention, when it is determined that the display panel enters the holding frame after N+1 refresh frames, and N is greater than or equal to the first number threshold, in the holding frame set after the N+1 refresh frames, according to the brightness range of the display panel, the first high voltage and / or the first low voltage are controlled and adjusted to perform brightness adjustment, so as to improve the leakage phenomenon when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode, and prevent the poor picture quality caused by the aggravated leakage when switching to the low-frequency refresh mode. It can effectively change the color deviation and brightness in the low-frequency refresh mode, improve the brightness abnormality of the first frame of the holding frame when the display panel switches from the high-frequency refresh mode to the low-frequency refresh mode, and improve the leakage phenomenon of the holding frame after the first frame holding frame.

[0263] The display device described in the embodiment of the present invention includes a voltage control module, a first GOA module and a display panel; the display panel includes a plurality of rows and columns of pixel circuits; the pixel circuit includes a driving circuit and a compensation control circuit; the control end of the driving circuit is electrically connected to the first node; the compensation control circuit is electrically connected to the compensation control end and the first node respectively, and is used to perform threshold voltage compensation on the driving transistor included in the driving circuit under the control of the compensation control signal provided by the compensation control end;

[0264] The first GOA module is electrically connected to the first high voltage terminal and the first low voltage terminal respectively, and is used to provide the compensation control signal to the compensation control terminal according to the first high voltage provided by the first high voltage terminal and the first low voltage provided by the first low voltage terminal;

[0265] The voltage control module is used for controlling and adjusting the first high voltage and / or the first low voltage according to the brightness range of the display panel in a holding frame set after the N+1 refresh frames when it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to a first number threshold;

[0266] N is a natural number, and the first number threshold is a natural number.

[0267] In at least one embodiment of the present invention, the pixel circuit may further include a first initialization circuit; the first initialization circuit is electrically connected to the first initial control terminal, the first initial voltage terminal and the first node respectively, and is used to write the first initial voltage provided by the first initial voltage terminal into the first node under the control of the first initial control signal provided by the first initial control terminal; the first GOA module is also used to provide the first initial control signal to the first initial control terminal;

[0268] The voltage control module is further configured to adjust the first initial voltage according to the brightness range of the display panel in a holding frame set after the A+1 refresh frames when it is determined that the display panel enters a holding frame after A+1 refresh frames and A is greater than or equal to a second numerical threshold;

[0269] A is a natural number, and the second number threshold is a natural number.

[0270] In at least one embodiment of the present invention, the pixel circuit may further include a data writing circuit, which is electrically connected to the scanning end, the data line and the second end of the driving circuit respectively, and is used to write the data voltage provided by the data line into the second end of the driving circuit under the control of the scanning signal provided by the scanning end;

[0271] The display device may further include a second GOA module, the second GOA module being electrically connected to the second high voltage terminal and the second low voltage terminal, respectively, and configured to provide a scanning signal to the scanning terminal according to a second high voltage provided by the second high voltage terminal and a second low voltage provided by the second low voltage terminal;

[0272] The voltage control module is further configured to control and adjust the second high voltage and / or the second low voltage according to the brightness range of the display panel in a holding frame set after the C+1 refresh frames when it is determined that the display panel enters a holding frame after the C+1 refresh frames and C is greater than or equal to a third numerical threshold;

[0273] C is a natural number, and the third threshold value is a natural number.

[0274] In at least one embodiment of the present invention, the pixel circuit may further include a second initialization circuit; the second initialization circuit is electrically connected to the second initial control terminal, the second initial voltage terminal and the first pole of the light-emitting element, respectively, and is used to write the second initial voltage provided by the second initial voltage terminal into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control terminal; the display device may further include a third GOA module; the third GOA module is electrically connected to the third high voltage terminal and the third low voltage terminal, respectively, and is used to provide the second initial control signal to the second initial control terminal according to the third high voltage provided by the third high voltage terminal and the third low voltage provided by the third low voltage terminal;

[0275] The voltage control module is further configured to control and adjust the third high voltage and / or the third low voltage according to the brightness range of the display panel in a holding frame set after the D+1 refresh frames when it is determined that the display panel enters a holding frame after D+1 refresh frames and D is greater than or equal to a fourth number threshold;

[0276] D is a natural number, and the fourth number threshold is a natural number.

[0277] In at least one embodiment of the present invention, the voltage control module is further configured to adjust the second initial voltage according to the brightness range of the display panel in a holding frame set after the E+1 refresh frames when it is determined that the display panel enters a holding frame after E+1 refresh frames and E is greater than or equal to a fifth number threshold;

[0278] E is a natural number, and the fifth threshold value is a natural number.

[0279] In at least one embodiment of the present invention, the pixel circuit may further include a third initialization circuit; the third initialization circuit is electrically connected to the second initial control terminal, the third initial voltage terminal and the first terminal of the driving circuit respectively, and is used to write the third initial voltage provided by the third initial voltage terminal into the first terminal of the driving circuit under the control of the second initial control signal;

[0280] The voltage control module is further configured to adjust the third initial voltage according to the brightness range of the display panel in a first holding frame after the F+1 refresh frames when it is determined that the display panel enters a holding frame after the F+1 refresh frames and F is greater than or equal to a sixth number threshold;

[0281] F is a natural number, and the sixth threshold value is a natural number.

[0282] 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 method, applied to a display device, the display device comprising a display panel, the display panel comprising a plurality of pixel circuits; the pixel circuit comprising a driving circuit and a compensation control circuit; the control end of the driving circuit is electrically connected to a first node; the compensation control circuit is electrically connected to a compensation control end and the first node, respectively, and is used to perform threshold voltage compensation on a driving transistor included in the driving circuit under the control of a compensation control signal provided by the compensation control end; the display device further comprises a first GOA module; The first GOA module is electrically connected to the first high voltage terminal and the first low voltage terminal respectively, and is used to provide the compensation control signal to the compensation control terminal according to the first high voltage provided by the first high voltage terminal and the first low voltage provided by the first low voltage terminal; characterized in that: The driving method comprises: When it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to a first number threshold, in a holding frame set after the N+1 refresh frames, the first high voltage and / or the first low voltage is controlled and adjusted according to a brightness range of the display panel; N is a natural number, and the first number threshold is a natural number.

2. The driving method according to claim 1, characterized in that: The step of controlling and adjusting the first high voltage and / or the first low voltage comprises: Controlling that in a hold frame arranged after the N+1 refresh frames, the voltage value of the first high voltage is greater than the voltage value of the first high voltage in the refresh frame; and / or, It is controlled that in a hold frame arranged after the N+1 refresh frames, a voltage value of the first low voltage is smaller than a voltage value of the first low voltage in the refresh frame.

3. The driving method according to claim 1, characterized in that: In at least two holding frames of the holding frames arranged after the N+1 refresh frames, the voltage values ​​of the first high voltage are different from each other; and / or, In at least two hold frames among the hold frames arranged after the N+1 refresh frames, voltage values ​​of the first low voltage are different from each other.

4. The driving method according to claim 1, characterized in that: include: According to the brightness test of the display panel in advance, a first compensation voltage comparison table and a second compensation voltage comparison table are obtained in advance according to the test result; The first compensation voltage comparison table records the first compensation voltage values ​​corresponding to different holding frames within different brightness ranges; the second compensation voltage comparison table records the second compensation voltage values ​​corresponding to different holding frames within different brightness ranges; When it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to the first number threshold, in the holding frame set after the N+1 refresh frames, according to the brightness range of the display panel and the corresponding first compensation voltage value in the first compensation voltage comparison table, the first high voltage is adjusted, and / or the first low voltage is adjusted according to the corresponding second compensation voltage value in the second compensation voltage comparison table.

5. The driving method according to any one of claims 1 to 4, characterized in that: The pixel circuit further includes a first initialization circuit; the first initialization circuit is electrically connected to the first initial control terminal, the first initial voltage terminal and the first node respectively, and is used to write the first initial voltage provided by the first initial voltage terminal into the first node under the control of the first initial control signal provided by the first initial control terminal; The first GOA module is further used to provide the first initial control signal to the first initial control terminal; the driving method further includes: When it is determined that the display panel enters a holding frame after A+1 refresh frames, and A is greater than or equal to a second numerical threshold, in a holding frame set after the A+1 refresh frames, adjusting the first initial voltage according to a brightness range of the display panel; A is a natural number, and the second number threshold is a natural number.

6. The driving method according to claim 5, characterized in that: The step of adjusting the first initial voltage comprises: The control is performed so that, in a hold frame arranged after the A+1 refresh frames, a voltage value of the first initial voltage is smaller than a voltage value of the first initial voltage in the refresh frame.

7. The driving method according to any one of claims 1 to 4, characterized in that: The pixel circuit further includes a data writing circuit, which is electrically connected to the scanning end, the data line and the second end of the driving circuit respectively, and is used to write the data voltage provided by the data line into the second end of the driving circuit under the control of the scanning signal provided by the scanning end; the display device further includes a second GOA module, which is electrically connected to the second high voltage end and the second low voltage end respectively, and is used to provide a scanning signal to the scanning end according to the second high voltage provided by the second high voltage end and the second low voltage provided by the second low voltage end; The driving method further comprises: When it is determined that the display panel enters a holding frame after C+1 refresh frames, and C is greater than or equal to a third numerical threshold, in a holding frame set after the C+1 refresh frames, the second high voltage and / or the second low voltage is controlled and adjusted according to a brightness range of the display panel; C is a natural number, and the third threshold value is a natural number.

8. The driving method according to claim 7, characterized in that: The step of controlling and adjusting the second high voltage and / or the second low voltage comprises: Controlling that in a hold frame arranged after the C+1 refresh frames, the voltage value of the second high voltage is greater than the voltage value of the second high voltage in the refresh frame; and / or, The control is performed so that, in a hold frame arranged after the C+1 refresh frames, the voltage value of the second low voltage is smaller than the voltage value of the second low voltage in the refresh frame.

9. The driving method according to claim 7, characterized in that: In at least two of the hold frames arranged after the C+1 refresh frames, the voltage values ​​of the second high voltage are different from each other; and / or, In at least two hold frames among the hold frames arranged after the C+1 refresh frames, voltage values ​​of the second low voltage are different from each other.

10. The driving method according to any one of claims 1 to 4, characterized in that: The pixel circuit further includes a second initialization circuit; the second initialization circuit is electrically connected to the second initial control terminal, the second initial voltage terminal and the first pole of the light-emitting element, respectively, and is used to write the second initial voltage provided by the second initial voltage terminal into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control terminal; the display device further includes a third GOA module; the third GOA module is electrically connected to the third high voltage terminal and the third low voltage terminal, respectively, and is used to provide the second initial control signal to the second initial control terminal according to the third high voltage provided by the third high voltage terminal and the third low voltage provided by the third low voltage terminal; The driving method further comprises: When it is determined that the display panel enters a holding frame after D+1 refresh frames, and D is greater than or equal to a fourth number threshold, in a holding frame set after the D+1 refresh frames, the third high voltage and / or the third low voltage is controlled and adjusted according to a brightness range of the display panel; D is a natural number, and the fourth number threshold is a natural number.

11. The driving method according to claim 10, characterized in that: The step of controlling and adjusting the third high voltage and / or the third low voltage comprises: Controlling that in a hold frame arranged after the D+1 refresh frames, the voltage value of the third high voltage is smaller than the voltage value of the third high voltage in the refresh frame; and / or, The voltage value of the third low voltage is controlled to be greater than the voltage value of the third low voltage in the refresh frame in the hold frame after the D+1 refresh frames.

12. The driving method according to claim 11, characterized in that: In at least two of the hold frames arranged after the D+1 refresh frames, the voltage values ​​of the third high voltage are different from each other; and / or, In at least two hold frames among the hold frames arranged after the D+1 refresh frames, voltage values ​​of the third low voltage are different from each other.

13. The driving method according to claim 10, characterized in that: Also includes: When it is determined that the display panel enters a holding frame after E+1 refresh frames, and E is greater than or equal to a fifth number threshold, in a holding frame set after the E+1 refresh frames, adjusting the second initial voltage according to a brightness range of the display panel; E is a natural number, and the fifth threshold value is a natural number.

14. The driving method according to claim 13, characterized in that: The step of adjusting the second initial voltage comprises: The control is performed so that, in a hold frame arranged after the E+1 refresh frames, the voltage value of the second initial voltage is greater than the voltage value of the second initial voltage in the refresh frame.

15. The driving method according to claim 10, characterized in that: The pixel circuit further includes a third initialization circuit; the third initialization circuit is electrically connected to the second initial control terminal, the third initial voltage terminal and the first terminal of the driving circuit respectively, and is used to write the third initial voltage provided by the third initial voltage terminal into the first terminal of the driving circuit under the control of the second initial control signal; the driving method further includes: When it is determined that the display panel enters a holding frame after F+1 refresh frames, and F is greater than or equal to a sixth number threshold, in a first holding frame set after the F+1 refresh frames, adjusting the third initial voltage according to a brightness range of the display panel; F is a natural number, and the sixth threshold value is a natural number.

16. The driving method according to claim 15, characterized in that: The step of adjusting the third initial voltage comprises: The voltage value of the third initial voltage is controlled to be greater than the voltage value of the third initial voltage in the first hold frame after the F+1 refresh frames.

17. The driving method according to any one of claims 1 to 4, characterized in that: The pixel circuit further includes a first light-emitting control circuit and a second light-emitting control circuit; the first light-emitting control circuit is electrically connected to the light-emitting control terminal, the first terminal of the driving circuit and the first voltage terminal respectively, and is used to control the connection between the first voltage terminal and the first terminal of the driving circuit under the control of the light-emitting control signal provided by the light-emitting control terminal; the second light-emitting control circuit is electrically connected to the light-emitting control terminal, the second terminal of the driving circuit and the first pole of the light-emitting element respectively, and is used to control the connection between the second terminal of the driving circuit and the first pole of the light-emitting element under the control of the light-emitting control signal; the display device further includes a fourth GOA module; the fourth GOA module is electrically connected to the fourth high voltage terminal and the fourth low voltage terminal respectively, and is used to provide the light-emitting control signal to the light-emitting control terminal according to the fourth high voltage provided by the fourth high voltage terminal and the fourth low voltage provided by the fourth low voltage terminal; The driving method further comprises: When it is determined that the display panel enters a holding frame after G+1 refresh frames, and G is greater than or equal to a seventh number threshold, in a holding frame set after the G+1 refresh frames, the fourth high voltage and / or the fourth low voltage is controlled and adjusted according to a brightness range of the display panel; G is a natural number, and the seventh threshold value is a natural number.

18. The driving method according to claim 17, characterized in that: The step of controlling and adjusting the fourth high voltage and / or the fourth low voltage comprises: Controlling, in a hold frame arranged after the G+1 refresh frames, that the voltage value of the fourth high voltage is greater than the voltage value of the fourth high voltage in the refresh frame; and / or, The fourth low voltage is controlled to have a voltage value that is smaller than a voltage value of the fourth low voltage in the refresh frame in a hold frame that is set after the G+1 refresh frames.

19. The driving method according to claim 18, characterized in that: In at least two of the hold frames arranged after the G+1 refresh frames, the voltage values ​​of the fourth high voltage are different from each other; and / or, In at least two hold frames among the hold frames arranged after the G+1 refresh frames, voltage values ​​of the fourth low voltage are different from each other.

20. The driving method according to any one of claims 1 to 4, characterized in that: The pixel circuit includes a light-emitting element, a data writing circuit, a second initialization circuit, a first light-emitting control circuit and a second light-emitting control circuit; the data writing circuit is used to write a data voltage into the second end of the driving circuit under the control of a scanning signal provided by the scanning end; The second initialization circuit writes the second initial voltage into the first pole of the light-emitting element under the control of the second initial control signal provided by the second initial control terminal; the first light-emitting control circuit controls the first voltage terminal to be connected with the first terminal of the driving circuit under the control of the light-emitting control signal provided by the light-emitting control terminal; the second light-emitting control circuit controls the second terminal of the driving circuit to be connected with the first pole of the light-emitting element under the control of the light-emitting control signal; the display device further comprises a fifth GOA module; the fifth GOA module is electrically connected to the fifth high voltage terminal and the fifth low voltage terminal respectively, and is used to provide a scanning signal to the scanning terminal, a second initial control signal to the second initial control terminal, and the light-emitting control signal to the light-emitting control terminal according to the fifth high voltage provided by the fifth high voltage terminal and the fifth low voltage provided by the fifth low voltage terminal; the driving method comprises: When it is determined that the display panel enters a holding frame after H+1 refresh frames, and H is greater than or equal to an eighth number threshold, in a holding frame set after the H+1 refresh frames, the fifth high voltage and / or the fifth low voltage is controlled and adjusted according to the brightness range of the display panel; H is a natural number, and the eighth number threshold is a natural number.

21. The driving method according to claim 20, characterized in that: The step of controlling and adjusting the fifth high voltage and / or the fifth low voltage comprises: Controlling, in a hold frame arranged after the H+1 refresh frames, that the voltage value of the fifth high voltage is smaller than the voltage value of the fifth high voltage in the refresh frame; and / or, The control is performed so that, in a hold frame arranged after the H+1 refresh frames, the voltage value of the fifth low voltage is greater than the voltage value of the fifth low voltage in the refresh frame.

22. The driving method according to claim 21, characterized in that: In at least two of the hold frames arranged after the H+1 refresh frames, the voltage values ​​of the fifth high voltage are different from each other; and / or, In at least two hold frames among the hold frames arranged after the H+1 refresh frames, voltage values ​​of the fifth low voltage are different from each other.

23. A display device, characterized in that: It comprises a voltage control module, a first GOA module and a display panel; the display panel comprises a plurality of rows and columns of pixel circuits; the pixel circuit comprises a driving circuit and a compensation control circuit; the control end of the driving circuit is electrically connected to a first node; the compensation control circuit is electrically connected to a compensation control end and the first node, respectively, and is used to perform threshold voltage compensation on a driving transistor included in the driving circuit under the control of a compensation control signal provided by the compensation control end; The first GOA module is electrically connected to the first high voltage terminal and the first low voltage terminal respectively, and is used to provide the compensation control signal to the compensation control terminal according to the first high voltage provided by the first high voltage terminal and the first low voltage provided by the first low voltage terminal; The voltage control module is used for controlling and adjusting the first high voltage and / or the first low voltage according to the brightness range of the display panel in a holding frame set after the N+1 refresh frames when it is determined that the display panel enters a holding frame after N+1 refresh frames, and N is greater than or equal to a first number threshold; N is a natural number, and the first number threshold is a natural number.

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