Driving method of display panel and display device

Abstract

The invention discloses a driving method of a display panel and a display device, and the method comprises the steps: enabling each sub-pixel of the display panel to be connected with a global light-emitting control signal, and enabling the global light-emitting control signal to be used for controlling a first light-emitting device of the sub-pixel to be turned on, so that the display panel is in a first display stage; or controlling a second light-emitting device of the sub-pixel to be lightened to enable the display panel to be in a second display stage; at least part of the first display stage is located in a first display frame, at least part of the second display stage is located in a second display frame, and the first display frame is adjacent to the second display frame; the driving method comprises the following steps: after a first display frame starts and before a second display frame starts, controlling a global light-emitting control signal to jump so as to switch the display panel from one of a normal display mode and a peep-proof display mode to the other, thereby realizing a narrow frame of the display screen with a peep-proof function.

Description

Technical Field

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

[0002] As a carrier of information display and a window for human-computer interaction in the digital age, display screens are becoming an important port for people to receive visual information, which continuously affects people's lives and the development of the economy and society. In recent years, the in-vehicle display market has expanded year by year, and large and multiple screens in cars have become the mainstream. Among them, the front screen with anti-peep function has been paid more and more attention for its safety.

[0003] However, the display screen structure of the full-screen anti-peeping function in the existing solution is complex and cannot achieve a narrow frame. Summary of the invention

[0004] The present invention provides a display panel driving method and a display device, so as to solve the problem that a display screen with an anti-peeping function has a large frame, and realize a display screen with an anti-peeping function with a narrow frame.

[0005] According to one aspect of the present invention, a method for driving a display panel is provided, wherein the display panel comprises a plurality of sub-pixels, each of the sub-pixels is connected to a global light-emitting control signal, the sub-pixels comprise a first light-emitting device and a second light-emitting device, and the global light-emitting control signal is used to control the first light-emitting device to light up so that the display panel is in a first display stage, or to control the second light-emitting device to light up so that the display panel is in a second display stage;

[0006] The first display stage is at least partially located in a first display frame, the second display stage is at least partially located in a second display frame, and the first display frame and the second display frame are adjacent;

[0007] The driving method of the display panel includes:

[0008] After the first display frame starts and before the second display frame starts, the global light emitting control signal is controlled to jump.

[0009] According to another aspect of the present invention, a display device is provided, including a display panel and a driving chip, wherein the driving chip is used to execute the driving method of the display panel.

[0010] According to the technical solution of the embodiment of the present invention, when the display panel needs to be controlled to switch between two modes, the display panel switches from the current first display stage to the second display stage. The global light-emitting control signal can be controlled to jump before the first display frame of the second display stage, that is, before the second display frame starts and after the first display frame adjacent to the second display frame in the first display stage starts, to complete the mode switching. That is, for a row of sub-pixels of the display panel, after the user issues an instruction that a stage switching is required, the global light-emitting control signal can be controlled to jump immediately or after a certain delay, so as to ensure that for a row of sub-pixels, the display panel is controlled to switch to the second display stage before the first display frame of the second display stage corresponding to the row of sub-pixels starts. Because the signal for controlling the first light-emitting device and the second light-emitting device of each sub-pixel in the display panel to emit light is a global signal, that is, each sub-pixel is connected to the same signal, and all sub-pixels in the display panel switch between the first display stage and the second display stage at the same time. The global light-emitting control signal can be directly output by the chip without the need to additionally set up a gate drive circuit including a multi-stage shift register, which is conducive to realizing a narrow frame of the display panel.

[0011] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 A schematic diagram of the structure of a pixel circuit of a display panel with a global anti-peeping function;

[0014] Figure 2 A flow chart of a method for driving a display panel provided by an embodiment of the present invention;

[0015] Figure 3 A schematic structural diagram of a pixel circuit provided by an embodiment of the present invention;

[0016] Figure 4 A schematic diagram of the structure of another pixel circuit provided by an embodiment of the present invention;

[0017] Figure 5 A timing diagram of a display panel driving method provided by an embodiment of the present invention;

[0018] Figure 6A timing diagram of another display panel driving method provided by an embodiment of the present invention;

[0019] Figure 7 A schematic diagram of the structure of another pixel circuit provided by an embodiment of the present invention;

[0020] Figure 8 A schematic diagram of the structure of another pixel circuit provided by an embodiment of the present invention;

[0021] Fig. 9 A driving timing diagram of another display panel provided by an embodiment of the present invention;

[0022] Fig.10 A timing diagram of another display panel driving method provided by an embodiment of the present invention;

[0023] Fig.11 A driving timing diagram of another display panel provided by an embodiment of the present invention;

[0024] Fig.12 A driving timing diagram of another display panel provided by an embodiment of the present invention;

[0025] Fig.13 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] As described in the background art, the display panel with global anti-peeping function in the prior art cannot have a narrow frame. The inventors have found that the reason is that the light control signal that controls whether the light-emitting device can receive the driving current is generated by the gate drive circuit, resulting in a large number of gate drive circuits in the display panel. Specifically, Figure 1 is a schematic diagram of a pixel circuit of a display panel with a global anti-peeping function, referring to Figure 1 The display panel includes a plurality of sub-pixels, each of which includes a first light-emitting device L1, a second light-emitting device L2 and a pixel circuit. The pixel circuit includes a driving tube DTFT, a first light-emitting control transistor M1, a second light-emitting control transistor M2 and a third light-emitting control transistor M3. For specific connection relationships, see Figure 1 . When the display panel is in normal display mode, the first light-emitting control signal EM1 controls the first light-emitting control transistor M1 to turn on, and the second light-emitting control signal EM2 controls the second light-emitting control transistor M2 to turn on, so that the driving current generated by the driving tube DTFT is transmitted to the first light-emitting device L1, the first light-emitting device L1 is lit, and the display panel displays normally. When the display panel is in anti-peeping display mode, the first light-emitting control signal EM controls the first light-emitting control transistor M1 to turn on, and the third light-emitting control signal EM3 controls the third light-emitting control transistor M3 to turn on, so that the driving current generated by the driving tube DTFT is transmitted to the second light-emitting device L2, the second light-emitting device L2 is lit, and the display panel is in anti-peeping display. The first light-emitting control signal EM, the second light-emitting control signal EM2, and the third light-emitting control signal EM3 are respectively generated by different gate driving circuits, resulting in the number of gate driving circuits required by the pixel circuit being greater than 2, and the gate driving circuit is generally set at the border, resulting in an increase in the screen border and an inability to achieve a narrow border.

[0029] In view of the above technical problems, an embodiment of the present invention provides a method for driving a display panel to achieve switching between a normal display stage and an anti-peeping display stage, realize global anti-peeping display of the display panel, and at the same time ensure a narrow frame of the display panel.

[0030] The display panel includes a plurality of sub-pixels, each of which is connected to a global light-emitting control signal, and the sub-pixels include a first light-emitting device and a second light-emitting device. The global light-emitting control signal is used to control the first light-emitting device to light up so that the display panel is in a first display stage, or to control the second light-emitting device to light up so that the display panel is in a second display stage;

[0031] For a row of sub-pixels, the first display phase is at least partially located in a first display frame, the second display phase is at least partially located in a second display frame, and the first display frame and the second display frame are adjacent.

[0032] Figure 2A flowchart of a method for driving a display panel provided by an embodiment of the present invention, referring to Figure 2 , the driving method of the display panel includes:

[0033] S110: Controlling the global light emitting control signal to jump after the first display frame starts and before the second display frame starts.

[0034] The display panel includes two modes: a normal display mode and an anti-peeping display mode. By controlling the global light emitting control signal to jump, the display panel can be controlled to switch from one of the above two modes to the other mode.

[0035] When the first display stage is the normal display stage and the second display stage is the anti-peeping display stage, in the normal display stage, the display panel is in the normal display mode, the first light-emitting device is used to be illuminated, and all the second light-emitting devices are in the off state during the entire normal display stage. For a certain row of sub-pixels in the normal display stage, the first light-emitting device of the sub-pixels in the row is illuminated in each display frame in the normal display stage to ensure normal display. Among them, the display frame included in the normal display stage is called a normal display frame, and there is a first display frame in multiple normal display frames. In the anti-peeping display stage, the display panel is in the anti-peeping mode, the second light-emitting device is illuminated, and all the first light-emitting devices are in the off state during the entire anti-peeping display stage. The display frame included in the anti-peeping display stage is called an anti-peeping display frame, and there is a second display frame in multiple anti-peeping display frames. For a certain row of sub-pixels in the anti-peeping display stage, the second light-emitting device of the sub-pixels in the row is illuminated in each display frame in the anti-peeping display stage to ensure anti-peeping display. For a row of sub-pixels, both the normal display stage and the anti-peeping display stage include multiple display frames corresponding to the row of sub-pixels, which are used to display multiple pictures. Among them, the display frame in the normal display stage is recorded as a normal display frame. In the light-emitting stage of the normal display frame, the driving current output by the pixel circuit can only be output to the first light-emitting device to ensure that the first light-emitting device can be illuminated. The display frame in the anti-peeping display stage is recorded as an anti-peeping display frame. In the light-emitting stage of the anti-peeping display frame, the driving current output by the pixel circuit can only be output to the second light-emitting device to ensure that the second light-emitting device can be illuminated. Among them, the duration corresponding to a display frame is 1 / display panel refresh frequency / equivalent number of sub-pixel rows. The equivalent number of sub-pixel rows can be obtained according to the resolution of the display panel, which can be understood as the number of sub-pixel rows actually set by the display panel.

[0036] When the user operates the display screen or triggers a button to trigger the instruction to turn on the anti-peeping function, the display panel needs to be controlled to switch from the current normal display stage to the anti-peeping display stage to turn on the anti-peeping function. In an optional manner, after the driver chip corresponding to the display panel receives the instruction to trigger the anti-peeping function, no matter what operation is performed by the sub-pixels in each row of the display panel in the current normal display stage, it immediately controls the global light-emitting control signal to cause a potential jump to switch the display panel from the normal display stage to the anti-peeping display stage, so that the second light-emitting device can be lit. Alternatively, after receiving the instruction to trigger the anti-peeping function, the driver chip delays the setting time length, and then controls the global light-emitting control signal to cause a potential jump to switch the display panel from the normal display stage to the anti-peeping display stage.

[0037] Among them, controlling the global light-emitting control signal to jump so as to switch the display panel from the normal display stage to the anti-peeping display stage can be understood as follows: when the global light-emitting control signal is in the first potential state, in the light-emitting stage of the normal display frame, the driving current output by the pixel circuit is output to the first light-emitting device, and the first light-emitting device is lit, and the display panel includes not only the global light-emitting control signal but also other light-emitting control signals to realize that the first light-emitting devices of each row of sub-pixels in the display panel are lit row by row. When the display panel needs to switch from the normal display stage to the anti-peeping display stage, the global light-emitting control signal is controlled to jump, and the global light-emitting control signal is in the second potential state after the jump, and in the light-emitting stage of the anti-peeping display frame, the driving current output by the pixel circuit is output to the second light-emitting device, and the second light-emitting device is lit, and the second light-emitting devices of each row of sub-pixels in the display panel are lit row by row.

[0038] In another optional implementation, the first display stage is the anti-peeping display stage, and the second display stage is the normal display stage. After the first display frame starts and before the second display frame starts, the global light emitting control signal is controlled to jump, so as to switch the display panel from the anti-peeping display stage to the normal display stage. The specific process is similar to the above, and will not be repeated here.

[0039] The following description will be made by taking the first display stage as a normal display stage and the second display stage as an anti-peeping display stage as an example.

[0040] Figure 3 A schematic diagram of a pixel circuit according to an embodiment of the present invention is provided. Figure 3, the sub-pixel includes a pixel circuit connected to the first light-emitting device L1 and the second light-emitting device L2, and the pixel circuit includes a driving module 10, a data writing module 11, a compensation module 12, a first initialization module 13, a second initialization module 14, a first light-emitting control module 15, a second light-emitting control module 16, and a third light-emitting control module 17; the first initialization module 13 is connected to the control end of the driving module 10, the data writing module 11 is connected to the first end of the driving module 10, and the compensation module 12 is connected between the second end and the control end of the driving module 10; the second initialization module 14 is respectively connected to the first end of the first light-emitting device L1 and the first end of the second light-emitting device L2, and the second end of the first light-emitting device L1 and the second end of the second light-emitting device L2 are both connected to the second power supply VSS. The driving module 10 and the first light-emitting control module 15 are connected in series between the first power supply VDD and the common node N, the second light-emitting control module 16 and the first light-emitting device L1 are connected in series between the common node N and the second power supply VSS, and the third light-emitting control module 17 and the second light-emitting device L2 are connected in series between the common node N and the second power supply VSS.

[0041] The driving module 10 includes a driving transistor T0, the data writing module 11 includes a first transistor T1, the compensation module 12 includes a second transistor T2, the first initialization module 13 includes a third transistor T3, the second initialization module 14 includes a fourth transistor T4 and a ninth transistor T9, the first light-emitting control module 15 includes a fifth transistor T5 and a sixth transistor T6, the second light-emitting control module 16 includes a seventh transistor T7, and the third light-emitting control module 17 includes an eighth transistor T8. The pixel circuit also includes a storage capacitor Cst connected between the control terminal of the driving module 10 and the first power supply VDD. The connection relationship of each transistor can be seen in Figure 3 As shown, no further details are given here. The control end of the first light-emitting control module 15 is connected to the first light-emitting control signal EM, that is, the gates of the fifth transistor T5 and the sixth transistor T6 are both connected to the first light-emitting control signal EM. The display panel includes multiple rows of sub-pixels, and each sub-pixel located in the same row can be connected to the same first light-emitting control signal EM, and the first light-emitting control signals EM connected to the sub-pixels in different rows are different. The display panel also includes a first gate driving circuit, and the first gate driving circuit includes a plurality of shift registers connected in cascade, each shift register is used to output the first light-emitting control signal EM to the sub-pixels in the corresponding row, and then the first gate driving circuit is used to realize the step-by-step shift output of the first light-emitting control signal EM connected to the sub-pixels in each row.

[0042] Optionally, the global light-emitting control signal includes a first global light-emitting control signal EM-1 and a second global light-emitting control signal EM-2, the second light-emitting control module 16 is connected to the first global light-emitting control signal EM-1, and the third light-emitting control module 17 is connected to the second global light-emitting control signal EM-2; the type of transistor included in the second light-emitting control module 16 is the same as the type of transistor included in the third light-emitting control module 17.

[0043] Controlling the global light emitting control signal jump includes:

[0044] The first global light-emitting control signal EM1 is controlled to jump from the first potential to the second potential, and the second global light-emitting control signal is controlled to jump from the second potential to the first potential; the first potential is the potential for controlling the second light-emitting control module 16 to be turned on and the third light-emitting control module 17 to be turned on, and the second potential is the potential for controlling the second light-emitting control module 16 to be turned off and the third light-emitting control module 17 to be turned off.

[0045] The first potential and the second potential are high and low potentials to each other. For example, taking the transistor included in the second light emitting control module 16, that is, the seventh transistor T7, and the transistor included in the third light emitting control module 17, that is, the eighth transistor T8, as PMOS tubes, the first potential is a low level and the second potential is a high level. The second light emitting control module 16 is turned on in response to the first potential and turned off in response to the second potential, and the third light emitting control module 17 is turned on in response to the first potential and turned off in response to the second potential. Figure 3 In the pixel circuit shown, the above-mentioned global light-emitting control signal is in a first potential state, that is, the first global light-emitting control signal EM-1 is a first potential, and the second global light-emitting control signal EM-1 is a second potential; the global light-emitting control signal is in a second potential state, that is, the first global light-emitting control signal EM-1 is a second potential, and the second global light-emitting control signal EM-1 is a first potential.

[0046] Alternatively, the type of transistor included in the second light emitting control module 16 is different from the type of transistor included in the third light emitting control module 17. Figure 4 , Figure 4 A schematic diagram of another pixel circuit structure provided by an embodiment of the present invention, wherein controlling the global light emitting control signal to jump includes: controlling the global light emitting control signal EM0 to jump from a first potential to a second potential. The first potential is a potential for controlling the second light emitting control module 16 to be turned on and the third light emitting control module 17 to be turned off, and the second potential is a potential for controlling the second light emitting control module 16 to be turned off and the third light emitting control module 17 to be turned on.

[0047] One of the seventh transistor T7 included in the second light-emitting control module 16 and the eighth transistor T8 included in the third light-emitting control module 17 is an N-type transistor, and the other is a P-type transistor. Then, the signal connected to the control end of the second light-emitting control module 16 and the signal connected to the control end of the third light-emitting control module 17 can be the same, both of which are global light-emitting control signals EM0, so as to save the number of signal sources. Taking the seventh transistor T7 as an NMOS tube and the eighth transistor T8 as a PMOS tube as an example, the global light-emitting control signal EM0 is controlled to jump from a high level to a low level, so as to control the second light-emitting control module 16 to change from on to off, and to control the third light-emitting control module 17 to change from off to on, so as to provide a prerequisite for lighting the second light-emitting device L2 in the subsequent light-emitting stage. Figure 4 In the pixel circuit shown, the global light emitting control signal EM0 is in a first potential state, that is, the global light emitting control signal EM0 is at a first potential, and the global light emitting control signal EM0 is in a second potential state, that is, the global light emitting control signal EM0 is at a second potential.

[0048] The following uses the example that the type of transistors included in the second light emitting control module 16 is the same as the type of transistors included in the third light emitting control module 17 .

[0049] For a row of sub-pixels, after the start of the first display frame corresponding to the previous row of sub-pixels in the second display stage and before the start of the first display frame corresponding to the row of sub-pixels in the second display stage, i.e., the second display frame, the first global light-emitting control signal EM-1 is controlled to jump from a low level to a high level to turn off the second light-emitting control modules 16 in all pixel circuits, and the second global light-emitting control signal EM-2 is controlled to jump from a high level to a low level to turn on the third light-emitting control modules 17 in all pixel circuits. For a row of sub-pixels, the third light-emitting control module 17 is turned on, which provides a prerequisite for the subsequent transmission of the driving current generated by the driving module 10 to the second light-emitting device L2 after the first light-emitting control module 15 is turned on in response to the first light-emitting control signal EM in the second display frame.

[0050] According to the technical solution of the embodiment of the present invention, when the display panel needs to be controlled to switch between two modes, the display panel switches from the current first display stage to the second display stage. The global light-emitting control signal can be controlled to jump before the first display frame of the second display stage, that is, before the second display frame starts and after the first display frame adjacent to the second display frame in the first display stage starts, to complete the mode switching. That is, for a row of sub-pixels of the display panel, after the user issues an instruction that a stage switching is required, the global light-emitting control signal can be controlled to jump immediately or after a certain delay, so as to ensure that for a row of sub-pixels, the display panel is controlled to switch to the second display stage before the first display frame of the second display stage corresponding to the row of sub-pixels starts. Because the signal for controlling the first light-emitting device and the second light-emitting device of each sub-pixel in the display panel to emit light is a global signal, that is, each sub-pixel is connected to the same signal, and all sub-pixels in the display panel switch between the first display stage and the second display stage at the same time. The global light-emitting control signal can be directly output by the chip without the need to additionally set up a gate drive circuit including a multi-stage shift register, which is conducive to realizing a narrow frame of the display panel.

[0051] Continue to refer Figure 3 The first display frame includes a display time period and a blanking time period. The display time period is the effective display time interval of the sub-pixel. The blanking time period is the time interval from the end of scanning the last row of sub-pixels in the previous picture to the start of scanning the first row of the next picture, that is, the blanking time period is the time interval from the effective level of the scanning light control signal of the last row of the current picture to the invalid level of the scanning light control signal of the first row of the next picture. The time interval in the first display frame except the blanking time period is the display time period. In an optional embodiment, S110 further includes:

[0052] At any time within the display time period of the first display frame, the global light emitting control signal is controlled to jump, and the display picture is instantly switched from the first display stage to the second display stage.

[0053] Generally, when the display panel is in the normal display stage, the driver chip immediately controls the global light control signal to jump in the current display frame corresponding to a row of sub-pixels after receiving the instruction to turn on the anti-peeping function. The current display frame is the display frame of the row of sub-pixels when the driver chip receives the instruction to turn on the anti-peeping function.

[0054] In the display time period of the first display frame, for the mth row of sub-pixels, when the preset module in the mth row of sub-pixels in the control display panel is turned on to perform a corresponding action, the global light-emitting control signal is controlled to jump so that the common node in the pixel circuit corresponding to each sub-pixel in the display panel is connected to the second light-emitting device; m is a positive integer; that is, the mth row of sub-pixels are the sub-pixels in the row described above.

[0055] Among them, the preset module is the first initialization module 13, and the corresponding action is to write the second initialization voltage vref2 into the control end of the driving module 10; or, the preset module is the data writing module 11, and the corresponding action is to write the data voltage Vdata into the driving module 10; or, the preset module is the first light-emitting control module 15, and the corresponding action is to transmit the driving current generated by the driving module 10 according to the data voltage Vdata to the first light-emitting device L1; or, when the preset module is the second initialization module 14, the corresponding action is to transmit the third initialization voltage vref3 to the first light-emitting device L1 and the second light-emitting device L2.

[0056] Figure 5 A timing diagram of a display panel driving method provided by an embodiment of the present invention, referring to Figure 3 and Figure 5 , Figure 3 In the pixel circuit shown, the control end of the first initialization module 13 is connected to the first scanning signal S1, the control ends of the data writing module 11 and the compensation module 12 are connected to the second scanning signal S2, and the control end of the second initialization module 14 is connected to the third scanning signal S3. In this embodiment, each transistor is exemplarily shown to be a PMOS tube. Exemplarily, the display panel includes 1920 rows of sub-pixels, and the first scanning signal S1 is multiplexed into the third scanning signal S3. Figure 5exemplarily shows: the timing of the first light control signal EM-row1 connected to the first row of sub-pixels, the first scan signal S1-row1 connected to the first row of sub-pixels, the second scan signal S2-row1 connected to the first row of sub-pixels, the first light control signal EM-row2 connected to the second row of sub-pixels, the first scan signal S1-row2 connected to the second row of sub-pixels, the second scan signal S2-row2 connected to the second row of sub-pixels, ..., the first light control signal EM-row1920 connected to the 1920th row of sub-pixels, the first scan signal S1-row1920 connected to the 1920th row of sub-pixels, and the second scan signal S2-row1920 connected to the 1920th row of sub-pixels. For the mth row of sub-pixels, at any time such as time t0 within the display time period t2 of the first display frame F1, after the driver chip corresponding to the display panel receives the instruction to control the display panel to switch from the normal display stage to the anti-peeping display stage, the first global light control signal EM-1 is controlled to jump from a low potential to a high potential, and the second global light control signal EM-2 is controlled to jump from a high potential to a low potential. At time t0, when the first initialization module 13 in the m-th row of sub-pixels is turned on in response to the first scan signal S1 to write the second initialization voltage vref2 into the control terminal of the driving module 10, and the second initialization module 14 is turned on in response to the third scan signal S3 to write the third initialization voltage vref3 into the first light-emitting device L1 and the second light-emitting device L2, the global light-emitting control signal is controlled to jump, so that all the third light-emitting control modules 17 are turned on. Alternatively, at time t0, when the data writing module 11 and the compensation module 12 in the m-th row of sub-pixels are both turned on in response to the second scan signal S2 to write the data voltage Vdata and the voltage signal related to the threshold voltage of the driving transistor T0 into the control terminal of the driving module 10, the global light-emitting control signal is controlled to jump, so that all the third light-emitting control modules 17 are turned on. Alternatively, at time t0, when the first light-emitting control module 15 in the m-th row of sub-pixels is turned on in response to the first light-emitting control signal EM to transmit the driving current to the common node N, the global light-emitting control signal is controlled to jump, so that all the third light-emitting control modules 17 are turned on.

[0057] The above embodiment exemplifies that at any time within the display time period of the first display frame, the global light emitting control signal is controlled to jump to switch the display panel from the normal display stage to the anti-peeping display stage. The display screen is instantly switched from the first display stage to the second display stage in the current display frame, that is, the first display stage and the second display stage are partially located in the current display frame, the first display stage is at least partially located in the first display frame, the second display stage is at least partially located in the second display frame, and the first display frame and the second display frame are adjacent.

[0058] In another optional implementation, the global light emitting control signal may be controlled to jump during the blanking period of the first display frame.

[0059] Specifically, Figure 6 A timing diagram of another display panel driving method provided by an embodiment of the present invention is shown in FIG. Figure 3 and Figure 6 , S110 includes:

[0060] In the blanking time period t1 of the first display frame, the global light-emitting control signal is controlled to jump, that is, the first global light-emitting control signal EM-1 is controlled to jump from the first potential to the second potential, and the second global light-emitting control signal EM-2 is controlled to jump from the second potential to the first potential, so as to switch the display panel from the normal display stage to the anti-peeping display stage.

[0061] The first display frame is composed of a display time period t2 and a blanking time period t1. The blanking time period t1 is the time interval from the end of scanning of the last row of the current screen by the scanning light control signal to the start of scanning of the first row of the next screen by the scanning light control signal, that is, the blanking time period is the time interval from the start of the effective level of the last row of the current screen by the scanning light control signal to the start of the invalid level of the first row of the next screen by the scanning light control signal. In the display process of the display panel, each screen includes a display time and a blanking time in terms of duration. For the display panel, since the resolution is generally high, the display time of each screen is long, and the blanking time is short. Therefore, the display panel and the driving circuit are set in the blanking time period t1, which does not affect the normal display of the display panel.

[0062] Taking the first row of sub-pixels as an example, the working process of the first display frame F1 and the second display frame F2 is the same, the only difference is that the device used for lighting in the first display frame F1 is the first light-emitting device L1, and the device used for lighting in the second display frame F2 is the second light-emitting device L2. Both the normal display frame and the anti-peeping display frame include a first initialization stage, a data writing and threshold compensation stage, a second initialization stage, and a light-emitting stage. Therefore, both the first display frame and the second display frame include: a first initialization stage, a data writing and threshold compensation stage, a second initialization stage, and a light-emitting stage. The working processes of the first display frame and the second display frame are introduced below.

[0063] refer to Figure 3 , the working process of the first display frame includes:

[0064] In the first initialization stage, the first initialization module 13 is controlled to be turned on to transmit the second initialization voltage vref2 to the control terminal of the driving module 10 .

[0065] The first initialization module 13 is turned on in response to the effective potential of the first scanning signal S1 to transmit the second initialization voltage vref2 to the control end of the driving module 10 to initialize the driving module 10. The effective potential of the first scanning signal S1 is the potential for controlling the conduction of the first initialization module 13. In the first initialization stage, the second initialization module 14, the data writing module 11, the compensation module 12, the first light-emitting control module 15, and the third light-emitting control module 17 are all turned off in response to the signals connected to their respective control ends.

[0066] In the data writing and threshold compensation stage, the data writing module 11 and the compensation module 12 are controlled to be turned on, so as to write a voltage related to the data voltage Vdata and the threshold voltage of the driving module 10 to the control terminal of the driving module 10 .

[0067] The data writing module 11 and the compensation module 12 are both turned on in response to the effective potential of the second scanning signal S2, so as to write the voltage related to the data voltage Vdata and the threshold voltage of the driving module 10 to the control end of the driving module 10. The effective potential of the second scanning signal S2 is the potential for controlling the conduction of the data writing module 11 and the compensation module 12. In the data writing and threshold compensation stage, the first initialization module 13, the first light emitting control module 15, the second initialization module 14, and the third light emitting control module 17 are all turned off in response to the signals connected to their respective control ends.

[0068] In the second initialization stage, the second initialization module 14 is controlled to be turned on to transmit the third initialization voltage vref3 to the first end of the first light emitting device L1 and the first end of the second light emitting device L2 respectively.

[0069] The second initialization module 14 is turned on in response to the effective potential of the third scanning signal S3 to transmit the third initialization voltage vref3 to the first end of the first light-emitting device L1 and the first end of the second light-emitting device L2, respectively, to initialize the first light-emitting device L1 and the second light-emitting device L2, and to avoid the influence of the residual charge of the previous frame on the next frame. The effective potential of the third scanning signal S3 is the potential for controlling the conduction of the third initialization module 14. In the second initialization stage, the first initialization module 13, the data writing module 11, the compensation module 12, the first light-emitting control module 15, and the third light-emitting control module 17 are all turned off in response to the signal connected to their respective control terminals.

[0070] In the light emitting stage, the first light emitting control module 15 is controlled to be turned on, so that the driving module 10 transmits the driving current generated according to the data voltage Vdata to the first light emitting device L1 .

[0071] The first light-emitting control module 15 is turned on in response to the effective potential of the first light-emitting control signal EM, and the second light-emitting control module 16 is turned on in response to the effective potential of the first global light-emitting control signal EM-1, so that the driving module 10 generates a driving current according to the data voltage Vdata and transmits the driving current to the first light-emitting device L1. The effective potential of the first light-emitting control signal EM is the potential for controlling the first light-emitting control module 15 to be turned on. The effective potential of the first global light-emitting control signal EM-1 is the potential for controlling the second light-emitting control module 16 to be turned on. In the light-emitting stage, the first initialization module 13, the second initialization module 14, the data writing module 11, the compensation module 12, and the third light-emitting control module 17 are all turned off in response to the signals connected to their respective control terminals.

[0072] Optionally, the first initialization stage includes a second initialization stage, that is, the first scanning signal S1 can be multiplexed into a third scanning signal S3 to simultaneously initialize the driving module 10 and the first light-emitting device L1 and the second light-emitting device L2.

[0073] Optionally, in the first display stage, the potential of the global light-emitting control signal remains unchanged. Taking the first display stage as the normal display stage as an example, in the normal display stage, the first global light-emitting control signal EM-1 maintains an effective potential unchanged, and the second global light-emitting control signal EM-2 maintains an invalid potential unchanged. Among them, the effective potential of the first global light-emitting control signal EM-1 is the potential for controlling the second light-emitting control module 16 to be turned on, and the invalid potential of the second global light-emitting control signal EM-2 is the potential for controlling the third light-emitting control module 17 to be turned off. In the normal display stage, for a row of sub-pixels, in the first initialization stage, the second initialization stage, the data writing and threshold compensation stage, and the light-emitting stage described above, the first global light-emitting control signal EM-1 maintains an effective potential to control the second light-emitting control module 16 to be turned on, ensuring that in the normal display stage, the first light-emitting device L1 can be lit, and the second global light-emitting control signal EM-2 maintains an invalid potential to control the third light-emitting control module 17 to be turned off, and the second light-emitting device L2 is not lit.

[0074] Continue to refer Figure 3 , the working process of the second display frame includes:

[0075] In the first initialization stage, the first initialization module 13 is controlled to be turned on to transmit the second initialization voltage vref2 to the control terminal of the driving module 10. The specific process is the same as the first initialization stage of the first display frame, and will not be repeated.

[0076] In the data writing and threshold compensation stage, the data writing module 11 and the compensation module 12 are controlled to be turned on to write a voltage related to the data voltage Vdata and the threshold voltage of the driving module 10 to the control end of the driving module 10. The specific process is the same as the data writing and threshold compensation stage in the first display frame, and will not be repeated.

[0077] In the second initialization stage, the second initialization module 14 is controlled to be turned on to transmit the third initialization voltage vref3 to the first end of the first light emitting device L1 and the first end of the second light emitting device L2. The specific process is the same as the second initialization stage in the first display frame, and will not be repeated.

[0078] In the light-emitting stage, the first light-emitting control module 15 and the third light-emitting control module 17 are controlled to be turned on, so that the driving module 10 transmits the driving current generated according to the data voltage Vdata to the second light-emitting device L2. The light-emitting stage of the second display frame is different from the light-emitting stage of the first display frame only in that the third light-emitting control module 17 is controlled to be turned on to ensure that the second light-emitting device L2 is lit to achieve anti-peeping display. Optionally, the first initialization stage includes a second initialization stage.

[0079] refer to Figure 3 , Optionally, in the second display stage, the potential of the global light-emitting control signal remains unchanged. Taking the second display stage as the anti-peeping display stage as an example, in the anti-peeping display stage, the first global light-emitting control signal EM-1 maintains an invalid potential and the second global light-emitting control signal EM-2 maintains an effective potential. Among them, the invalid potential of the first global light-emitting control signal EM-1 is the potential for controlling the second light-emitting control module 16 to turn off, and the effective potential of the second global light-emitting control signal EM-2 is the potential for controlling the third light-emitting control module 17 to turn on. In the anti-peeping display stage, for any display frame in this stage, in the first initialization stage, the second initialization stage, the data writing and threshold compensation stage, and the light-emitting stage described above, the first global light-emitting control signal EM-1 maintains an invalid potential to control the second light-emitting control module 16 to turn off, ensuring that in the anti-peeping display stage, the first light-emitting device L1 is not lit, and the second global light-emitting control signal EM-2 maintains an effective potential to control the third light-emitting control module 17 to turn on, so that the second light-emitting device L2 can be lit.

[0080] In another embodiment, if Figure 7 As shown, Figure 7 A schematic diagram of another pixel circuit provided by an embodiment of the present invention, referring to Figure 7 The third transistor T3 included in the first initialization module 13 and the second transistor T2 included in the compensation module 12 can both be NMOS transistors to reduce leakage current. Figure 7 The working process of the pixel circuit shown is similar to Figure 3Similar, no further elaboration is required here.

[0081] In yet another embodiment, Figure 8 and Fig. 9 As shown, Figure 8 A schematic diagram of the structure of another pixel circuit provided by an embodiment of the present invention, Fig. 9 Another driving timing diagram of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 8 and Fig. 9 The third transistor T3 included in the first initialization module 13, the second transistor T2 included in the compensation module 12, the seventh transistor T7 included in the second light-emitting control module 16, and the eighth transistor T8 included in the third light-emitting control module 17 are all NMOS tubes to reduce the size of the leakage current.

[0082] In addition to the above-mentioned initialization of the gate of the driving module only in the first initialization stage and the initialization of the first light-emitting device L1 and the second light-emitting device L2 in the second initialization stage, the driving module 10, the first light-emitting device L1 and the second light-emitting device L2 can also be initialized again in the blanking period of the global light-emitting control signal jump. Specifically, Fig.10 A timing diagram of another display panel driving method provided by an embodiment of the present invention is shown in FIG. Figure 3 and Fig.10 Optionally, in the blanking period t1 of the first display frame F1, each first initialization module 13 is controlled to be turned on at the same time, and for any first initialization module 13, the turned-on first initialization module 13 transmits the first initialization voltage vref1 to the control end of the driving module 10 corresponding to the first initialization module 13. The second initialization voltage vref2 is less than the first initialization voltage vref1; the second initialization voltage vref2 is less than zero, and the first initialization voltage vref1 is greater than zero.

[0083] In addition to initializing the control end of the driving module 10 in the first initialization phase of each normal display frame or each anti-peeping display frame, all the first initialization modules 13 in the display panel are controlled to be turned on in the blanking period t1 to initialize the driving module 10 again. The second initialization voltage written into the driving module 10 in the first initialization phase can be a low potential of -3V, and the first initialization voltage written into the control end of the driving module 10 can be a high potential of 7V in the blanking period t1.

[0084] Furthermore, in the blanking time period t1 of the first display frame F1, each second initialization module 14 is controlled to be turned on at the same time. For any second initialization module 14, the turned-on second initialization module 14 transmits the third initialization voltage vref3 to the first end of the correspondingly connected first light-emitting device L1 and the first end of the second light-emitting device L2.

[0085] In addition to initializing the first light-emitting device L1 and the second light-emitting device L2 in the second initialization phase of each normal display frame or each anti-peeping display frame, all the second initialization modules 14 in the display panel are controlled to be turned on during the blanking time period t1 to initialize the first light-emitting device L1 and the second light-emitting device L2 again.

[0086] On the basis of conventional progressive scanning, a simultaneous reset in the blanking time period t1 is added to reset the control end of the driving module 10 in the sub-pixel and the first ends of the two light-emitting devices to ensure that no abnormal display occurs in the display frame after switching. Among them, the first scanning signal S1 is multiplexed as the third scanning signal S3 as an example. Whether in a normal display frame or an anti-peeping display frame, the first scanning signal S1 can be a signal output by the first signal source, wherein the signal output by the first signal source is a signal for progressive scanning, specifically a signal output by the gate driving circuit. In the blanking time period t1, the first scanning signal S1 can be a signal output by the second signal source, and the signal output by the second signal source is a global signal, specifically a signal output by the driving chip. In the normal display stage and the anti-peeping display stage, the first scanning signal S1 connected to each row of sub-pixels is different, and the first scanning signals S1 connected to each row of sub-pixels are shifted in sequence. In the blanking time period t2, the first scanning signals S1 connected to each row of sub-pixels are the same, so that each first initialization module 13 is turned on at the same time.

[0087] In addition to controlling the global light emitting control signal to jump at any time in the display time period t2 of the first display frame, or controlling the global light emitting control signal to jump in the blanking time period t1 to switch the display panel from the normal display stage to the anti-peeping display stage, switching can also be performed in the black insertion frame. At least one black insertion frame is also provided between the first display frame and the second display frame.

[0088] In the first black insertion frame, the global light emitting control signal is controlled to jump, so as to switch the display panel from the normal display stage to the anti-peeping display stage.

[0089] The black frame can be understood as a display frame that displays a black screen. Preferably, a black frame is set to avoid too many black frames, which will cause the black frame insertion time to be too long, which will be perceived by the user and reduce the visual effect. In the black frame, the display panel displays a black screen and will not display the display screen required normally. Therefore, the display panel and the driving circuit are set in the blanking time period, which will not affect the normal display of the display panel.

[0090] The black frame insertion controls the global light emitting control signal to jump, so as to switch the display panel from the normal display stage to the anti-peeping display stage. There are two specific implementation methods: method 1 and method 2. Fig.11and Fig.12 .

[0091] Fig.11 Another driving timing diagram of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 3 and Fig.11 , Optionally, in mode 1: in the black insertion frame F3, the first light emitting control module 15 of the control sub-pixel is turned off. For a row of sub-pixels, in any black insertion frame corresponding to the row of sub-pixels, the first light emitting control module 15 of the control sub-pixel is turned off. Since the first light emitting control signal EM is a signal output by the gate driving circuit, the first light emitting control module of each row of sub-pixels is turned off row by row to display a black screen in the black insertion frame. In this embodiment, a row of sub-pixels corresponds to a black insertion frame as an example. In the black insertion frame, the driving timing of the first scanning signal S1, the second scanning signal S2, and the third scanning signal S3 of the row of sub-pixels is the same as the driving timing of the normal display frame or the anti-peeping display frame, that is, the sub-pixel normally transmits the second initialization voltage vref2 to the driving module 10 in the first initialization stage, and transmits the third initialization voltage vref3 to the first light emitting device L1 and the second light emitting device L2 in the second initialization stage. In the data writing and threshold compensation stage, the voltage related to the data voltage Vdata and the threshold voltage is written into the control end of the driving module 10. Optionally, in the black insertion frame F3, the data writing module 11 is controlled to be turned on to write the data voltage of the second display frame F2 to the corresponding driving module 10. For a row of sub-pixels, in the data writing and threshold compensation stage of the black insertion frame corresponding to the row of sub-pixels, the data writing module 11 and the compensation module 12 of the row of sub-pixels are controlled to be turned on to write the data voltage corresponding to the first display frame switched to the second display stage, that is, the second display frame F2, which is acquired in advance, to the corresponding driving module 10. However, in the light-emitting stage of the black insertion frame, the first light-emitting control module 15 is turned off in response to the invalid potential of the first light-emitting control signal EM1, so that in the black insertion frame F3, the sub-pixel does not emit light, that is, the black insertion frame display panel displays a black picture.

[0092] Fig.12 Another driving timing diagram of a display panel provided by an embodiment of the present invention is shown in FIG. Figure 3 and Fig.12 , Optionally, in the second method: for a row of sub-pixels, in any black-inserted frame corresponding to the row of sub-pixels:

[0093] Controlling the data writing module 11 of the row of sub-pixels to be turned on, so as to write the preset data voltage into the corresponding driving module 10;

[0094] The first light control module 15 of the row of sub-pixels is turned on so that the driving module 10 of the row of sub-pixels generates a driving current according to a preset data voltage and transmits the driving current to the first light-emitting device L1 or the second light-emitting device L2; the preset data voltage is the voltage corresponding to the sub-pixel displaying a black screen.

[0095] For a row of sub-pixels, the sub-pixels in the row transmit the second initialization voltage vref2 to the control end of the driving module 10 in the first initialization stage, as in the first display frame F1, and transmit the third initialization voltage vref3 to the first end of the first light-emitting device L1 and the first end of the second light-emitting device L2 in the second initialization stage. In the data writing and threshold compensation stage, the voltage related to the preset data voltage and the threshold voltage of the driving module 10 is written to the control end of the driving module 10. In the light-emitting stage, the first light-emitting control module 15 is controlled to be turned on, so that the driving current generated by the driving module according to the preset data voltage is transmitted to the first light-emitting device L1 or the second light-emitting device L2, wherein before the global light-emitting control signal jumps, the driving current is transmitted to the first light-emitting device L1, and after the global light-emitting control signal jumps, the driving current is transmitted to the second light-emitting device L2. Although in the black insertion frame F3, the first light-emitting control module 15 is controlled to be turned on row by row, the driving current generated by the driving module 10 controls the first light-emitting device L1 or the second light-emitting device L2 not to light up, thereby realizing the black insertion frame to display a black picture.

[0096] The embodiment of the present invention further provides a driving device for a display panel. Fig.13 A schematic diagram of a driving device for a display panel according to an embodiment of the present invention is provided. Fig.13 The display panel includes a plurality of sub-pixels, each of which is connected to a global light-emitting control signal, and the sub-pixels include a first light-emitting device and a second light-emitting device. The global light-emitting control signal is used to control the first light-emitting device to light up so that the display panel is in a normal display stage, or to control the second light-emitting device to light up so that the display panel is in an anti-peeping display stage;

[0097] An embodiment of the present invention further provides a display device, Fig.13 A schematic diagram of a display device according to an embodiment of the present invention is provided. Fig.13 The display device includes a display panel and a driving chip, the driving chip is used to execute the methods in the above embodiments, and the display device 1 can be Fig.13 The mobile phone shown may also be a computer, a television, a smart wearable display device, etc., which is not particularly limited in the embodiments of the present invention. The beneficial effects of the display device are the same as those of the driving device of the display panel, which will not be described in detail here.

[0098] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0099] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for driving a display panel, characterized in that: The display panel includes a plurality of sub-pixels, each of which is connected to a global light-emitting control signal, and the sub-pixels include a first light-emitting device and a second light-emitting device. The global light-emitting control signal is used to control the first light-emitting device to light up so that the display panel is in a first display stage, or to control the second light-emitting device to light up so that the display panel is in a second display stage; The first display stage is at least partially located in a first display frame, the second display stage is at least partially located in a second display frame, and the first display frame and the second display frame are adjacent; The driving method of the display panel includes: After the first display frame starts and before the second display frame starts, the global light emitting control signal is controlled to jump.

2. The method for driving a display panel according to claim 1, wherein: The first display stage is a normal display stage, and the second display stage is an anti-peeping display stage; Alternatively, the first display stage is an anti-peeping display stage, and the second display stage is a normal display stage.

3. The method for driving a display panel according to claim 1, wherein: The first display frame includes a display time period; After the first display frame starts and before the second display frame starts, controlling the global light emitting control signal to jump includes: At any time in a display time period of the first display frame, the global light emitting control signal is controlled to jump.

4. The method for driving a display panel according to claim 3, wherein: The sub-pixel includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, and the pixel circuit includes a driving module, a data writing module, a first initialization module, a second initialization module, a first light-emitting control module, a second light-emitting control module, and a third light-emitting control module; the first initialization module is connected to the control end of the driving module, and the data writing module is connected to the driving module; the second initialization module is connected to the first light-emitting device and the second light-emitting device respectively, the driving module and the first light-emitting control module are connected in series between a first power supply and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and a second power supply in sequence, and the third light-emitting control module and the second light-emitting device are connected in series between the common node and a second power supply in sequence; At any time in the display time period of the first display frame, controlling the global light emitting control signal to jump includes: In the display time period of the first display frame, for the m-th row of sub-pixels, when the preset module in the m-th row of sub-pixels in the control display panel is turned on to perform a corresponding action, the global light emitting control signal is controlled to jump so that a common node in the pixel circuit corresponding to each sub-pixel in the display panel is connected to the second light emitting device; m is a positive integer; Wherein, the preset module is the first initialization module, and the corresponding action is to write the second initialization voltage into the control terminal of the driving module; Alternatively, the preset module is the data writing module, and the corresponding action is to write the data voltage into the driving module; Alternatively, the preset module is the first light emitting control module, and the corresponding action is to transmit the driving current generated by the driving module according to the data voltage to the first light emitting device; Alternatively, the preset module is the second initialization module, and the corresponding action is transmitting the third initialization voltage to the first light-emitting device and the second light-emitting device.

5. The method for driving a display panel according to claim 1, wherein: The first display frame includes a blanking period, and the controlling the global light emitting control signal to jump after the first display frame starts and before the second display frame starts includes: During the blanking period of the first display frame, the global light emitting control signal is controlled to jump; the blanking period is the time interval from the effective level of the last line scanning light emitting control signal of the current picture to the invalid level of the first line scanning light emitting control signal of the next picture.

6. The method for driving a display panel according to claim 5, characterized in that: The sub-pixel comprises a pixel circuit connected to the first light-emitting device and the second light-emitting device, and the pixel circuit comprises a driving module and a first initialization module connected to a control end of the driving module; The driving method of the display panel further includes: During the blanking period of the first display frame, each of the first initialization modules is controlled to be turned on simultaneously. For any first initialization module, the turned-on first initialization module transmits the first initialization voltage to the control end of the correspondingly connected driving module.

7. The method for driving a display panel according to claim 6, wherein: The first display frame and the second display frame both include a first initialization phase; The driving method of the display panel further includes: In the first initialization stage, the first initialization module is controlled to be turned on to transmit a second initialization voltage to the control end of the driving module; the second initialization voltage is lower than the first initialization voltage; Preferably, the second initialization voltage is less than zero, and the first initialization voltage is greater than zero.

8. The method for driving a display panel according to claim 5, wherein: The sub-pixel includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit includes a second initialization module, the second initialization module is respectively connected to the first end of the first light-emitting device and the first end of the second light-emitting device, and the second end of the first light-emitting device and the second end of the second light-emitting device are both connected to a second power supply; The driving method of the display panel further includes: During the blanking time period of the first display frame, each of the second initialization modules is controlled to be turned on at the same time. For any second initialization module, the turned-on second initialization module transmits the third initialization voltage to the first end of the first light-emitting device and the first end of the second light-emitting device connected accordingly.

9. The method for driving a display panel according to claim 8, wherein: The first display frame and the second display frame both include a second initialization phase; The driving method of the display panel further includes: In the second initialization stage, the second initialization module is controlled to be turned on to transmit a third initialization voltage to the first end of the first light emitting device and the first end of the second light emitting device.

10. The method for driving a display panel according to claim 1, wherein: At least one black insertion frame is further provided between the first display frame and the second display frame; The controlling the global light emitting control signal to jump after the first display frame starts and before the second display frame starts includes: In the first black insertion frame, controlling the global light emitting control signal to jump; Preferably, a black frame is provided between the first display frame and the second display frame.

11. The method for driving a display panel according to claim 10, wherein: The sub-pixel further includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit includes a driving module, a first light-emitting control module, a second light-emitting control module and a third light-emitting control module, the driving module and the first light-emitting control module are connected in series between a first power source and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and a second power source in sequence, and the third light-emitting control module and the second light-emitting device are connected in series between the common node and a second power source in sequence; The display panel driving method further includes: In the inserted black frame, the first light emitting control module of the sub-pixel is controlled to be turned off.

12. The method for driving a display panel according to claim 11, characterized in that: The pixel circuit further includes a data writing module connected to the driving module, and the driving method of the display panel further includes: In the black insertion frame, the data writing module is controlled to be turned on to write the data voltage of the second display frame into the corresponding driving module.

13. The method for driving a display panel according to claim 10, wherein: The sub-pixel further includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit includes a data writing module, a driving module, a first light-emitting control module, a second light-emitting control module and a third light-emitting control module, the driving module and the first light-emitting control module are connected in series between a first power source and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and a second power source in sequence, the third light-emitting control module and the second light-emitting device are connected in series between the common node and a second power source in sequence, and the data writing module is connected to the driving module; The display panel driving method further includes: In the black frame insertion: Controlling the data writing module of the sub-pixel to be turned on to write the preset data voltage into the corresponding driving module; The first light emitting control module of the sub-pixel is turned on so that the driving module of the sub-pixel generates a driving current according to the preset data voltage and transmits the driving current to the first light emitting device or the second light emitting device; the preset data voltage is the voltage corresponding to the sub-pixel displaying a black screen.

14. The method for driving a display panel according to claim 1, wherein: The sub-pixel further includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit including a driving module, a data writing module, a compensation module, a first light-emitting control module, a second light-emitting control module, a third light-emitting control module, a first initialization module and a second initialization module, the driving module and the first light-emitting control module are connected in series between a first power source and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and the second power source in sequence, and the third light-emitting control module and the second light-emitting device are connected in series between the common node and the second power source in sequence; the data writing module is connected to a first end of the driving module, the compensation module is connected between a second end of the driving module and a control end, the first initialization module is connected to the control end of the driving module, and the second initialization module is connected to a first end of the first light-emitting device and a first end of the second light-emitting device, respectively; The first display frame includes a first initialization stage, a data writing and threshold compensation stage, a second initialization stage and a light emitting stage; The driving method of the display panel further includes: In a first initialization phase, controlling the first initialization module to be turned on to transmit a second initialization voltage to a control terminal of the driving module; In the data writing and threshold compensation stage, the data writing module and the compensation module are controlled to be turned on, so as to write a voltage related to the data voltage and the threshold voltage of the driving module to the control terminal of the driving module; In the second initialization stage, controlling the second initialization module to be turned on to transmit a third initialization voltage to the first end of the first light emitting device and the first end of the second light emitting device; In the light emitting stage, controlling the first light emitting control module and the second light emitting control module to be turned on, so that the driving module transmits the driving current generated according to the data voltage to the first light emitting device; Preferably, the first initialization phase includes the second initialization phase.

15. The method for driving a display panel according to claim 1, wherein: The sub-pixel further includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit including a driving module, a data writing module, a compensation module, a first light-emitting control module, a second light-emitting control module, a third light-emitting control module, a first initialization module and a second initialization module, the driving module and the first light-emitting control module are connected in series between a first power source and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and the second power source in sequence, and the third light-emitting control module and the second light-emitting device are connected in series between the common node and the second power source in sequence; the data writing module is connected to a first end of the driving module, the compensation module is connected between a second end of the driving module and a control end, the first initialization module is connected to the control end of the driving module, and the second initialization module is connected to a first end of the first light-emitting device and a first end of the second light-emitting device, respectively; The second display frame includes a first initialization phase, a data writing and threshold compensation phase, a second initialization phase and a light emitting phase; The display panel driving method further includes: In the first initialization stage, controlling the first initialization module to be turned on to transmit the second initialization voltage to the control terminal of the driving module; In the data writing and threshold compensation stage, the data writing module and the compensation module are controlled to be turned on, so as to write a voltage related to the data voltage and the threshold voltage of the driving module to the control terminal of the driving module; In the second initialization stage, controlling the second initialization module to be turned on to transmit a third initialization voltage to the first end of the first light emitting device and the first end of the second light emitting device; In the light emitting stage, controlling the first light emitting control module and the third light emitting control module to be turned on, so that the driving module transmits the driving current generated according to the data voltage to the second light emitting device; Preferably, the first initialization phase includes the second initialization phase.

16. The method for driving a display panel according to claim 1, wherein: In the first display stage, the potential of the global light emitting control signal remains unchanged.

17. The method for driving a display panel according to claim 1, wherein: In the second display stage, the potential of the global light emitting control signal remains unchanged.

18. The method for driving a display panel according to claim 1, wherein: The sub-pixel further includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit includes a driving module, a first light-emitting control module, a second light-emitting control module and a third light-emitting control module, the driving module and the first light-emitting control module are connected in series between a first power source and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and the second power source in sequence, and the third light-emitting control module and the second light-emitting device are connected in series between the common node and the second power source in sequence; the global light-emitting control signal includes a first global light-emitting control signal and a second global light-emitting control signal, the second light-emitting control module is connected to the first global light-emitting control signal, and the third light-emitting control module is connected to the second global light-emitting control signal; the type of transistor included in the second light-emitting control module is the same as the type of transistor included in the third light-emitting control module; The controlling the global light emitting control signal to jump comprises: Controlling the first global light-emitting control signal to jump from a first potential to a second potential, and controlling the second global light-emitting control signal to jump from the second potential to the first potential; The first potential is a potential for controlling the second light emitting control module to be turned on and the third light emitting control module to be turned on, and the second potential is a potential for controlling the second light emitting control module to be turned off and the third light emitting control module to be turned off.

19. The method for driving a display panel according to claim 1, wherein: The sub-pixel further includes a pixel circuit connected to the first light-emitting device and the second light-emitting device, the pixel circuit includes a driving module, a first light-emitting control module, a second light-emitting control module and a third light-emitting control module, the driving module and the first light-emitting control module are connected in series between a first power source and a common node, the second light-emitting control module and the first light-emitting device are connected in series between the common node and the second power source in sequence, and the third light-emitting control module and the second light-emitting device are connected in series between the common node and the second power source in sequence; the global light-emitting control signal includes a first global light-emitting control signal and a second global light-emitting control signal, the second light-emitting control module and the third light-emitting control module are both used to access the global light-emitting control signal, and the type of transistor included in the second light-emitting control module is different from the type of transistor included in the third light-emitting control module; The controlling the global light emitting control signal to jump comprises: Control the global light-emitting control signal to jump from a first potential to a second potential; the first potential is a potential for controlling the second light-emitting control module to be turned on and the third light-emitting control module to be turned off, and the second potential is a potential for controlling the second light-emitting control module to be turned off and the third light-emitting control module to be turned on.

20. A display device, characterized in that: It comprises a display panel and a driving chip, wherein the driving chip is used to execute the display panel driving method according to any one of claims 1 to 19.

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