Pixel circuit, driving method and display panel

Abstract

The invention provides a pixel circuit, a driving method and a display panel, and the pixel circuit comprises a driving module, a light-emitting module, a first light-emitting control module and an aging control signal line, and the driving module is used for controlling the light-emitting module to emit light according to a control signal of a control end of the driving module in a light-emitting stage. The first light-emitting control module is used for responding to a signal on the light-emitting control signal line to be switched on in the light-emitting stage and switched off in the aging stage, and the aging control signal line is used for writing aging voltage into the second end of the driving module in the aging stage. According to the pixel circuit, in the aging stage, the first light-emitting control module is driven to be turned off through the signal on the light-emitting control signal line, the light-emitting module is prevented from being lightened, the burn-in risk is reduced, meanwhile, the aging voltage is written into the second end of the driving module through the aging control signal line, and the burn-in risk is reduced. The voltage difference between the source electrode and the drain electrode of the driving module can be properly increased by adjusting the aging voltage, and the occurrence probability of bright spots is better reduced.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a pixel circuit and a driving method, and a display panel. Background Art

[0002] With the development of display technology, the application of display panels is becoming more and more extensive, and accordingly, the requirements for display panels are becoming higher and higher. Before the existing display panels leave the factory, the driving transistors in the pixel circuits need to be aged to improve the leakage problem of the driving transistors.

[0003] However, existing display panels have a screen burn-in problem during the aging process. Summary of the invention

[0004] In view of this, the purpose of the present application is to propose a pixel circuit that can effectively reduce the risk of screen burn-in during aging.

[0005] Based on the above purpose, the present application provides a pixel circuit, which includes:

[0006] A driving module, a light emitting module, a first light emitting control module and an aging control signal line;

[0007] The first end of the driving module is connected to the first power line, the cathode of the light-emitting module is connected to the second power line, and the driving module is used to control the light-emitting module to emit light according to the control signal of its own control end during the light-emitting stage;

[0008] The control end of the first light-emitting control module is connected to the light-emitting control signal line, the first end of the first light-emitting control module is connected to the second end of the driving module, the second end of the first light-emitting control module is connected to the anode of the light-emitting module, and the first light-emitting control module is used to respond to the signal on the light-emitting control signal line to turn on in the light-emitting stage and turn off in the aging stage;

[0009] The aging control signal line is connected to the second end of the driving module, and the aging control signal line is used to write the aging voltage into the second end of the driving module during the aging stage.

[0010] In one embodiment, the second ends of the driving modules in the pixel circuits are connected via the aging control signal line;

[0011] In the aging stage, the aging voltage is written into the second end of the driving module in each pixel circuit through the aging control signal line;

[0012] Preferably, the aging voltage includes -20V to -25V.

[0013] In one embodiment, a switch module is connected to the aging control signal line connected to the second end of the driving module in each pixel circuit, and a control end of the switch module is connected to the switch control signal line;

[0014] The switch module is used to respond to the signal on the switch control signal line to be turned on in the aging stage and turned off in the light-emitting stage.

[0015] In one implementation manner, the pixel circuit further includes:

[0016] A data writing module, wherein the control end of the data writing module is connected to the second scanning signal line, the first end of the data writing module is connected to the data line, and the second end of the data writing module is connected to the first end of the driving module. The data writing module is used to respond to the signal on the second scanning signal line and write a voltage related to the data voltage on the data line to the control end of the driving module during the data writing stage.

[0017] In one implementation manner, the pixel circuit further includes:

[0018] a storage module, the storage module being connected to the control end of the driving module and being used to store the voltage of the control end of the driving module;

[0019] Preferably, the storage module comprises a storage capacitor, a first end of the storage capacitor is connected to the control end of the driving module, and a second end of the storage capacitor is connected to the first power line.

[0020] In one implementation manner, the pixel circuit further includes:

[0021] A second light-emitting control module, wherein the first end of the second light-emitting control module is connected to the first end of the driving module, the control end of the second light-emitting control module is connected to a light-emitting control signal line, the second end of the second light-emitting control module is connected to the first power line, and the second light-emitting control module is used to respond to a signal on the light-emitting control signal line to turn on during the light-emitting stage.

[0022] In one implementation manner, the pixel circuit further includes:

[0023] a first reset module, wherein a control end of the first reset module is connected to a first scanning signal line, a first end of the first reset module is connected to a control end of the driving module, a second end of the first reset module is connected to a reference signal line, and the first reset module is used to reset the control end of the driving module;

[0024] Preferably, the pixel circuit further includes:

[0025] A second reset module, wherein a control end of the second reset module is connected to the first scan signal line, a first end of the second reset module is connected to the anode of the light emitting module, a second end of the second reset module is connected to the reference signal line, and the second reset module is used to reset the anode of the light emitting module;

[0026] Preferably, the pixel circuit further includes:

[0027] A compensation module, wherein the control end of the compensation module is connected to the second scanning signal line, the first end of the compensation module is connected to the control end of the driving module, the second end of the compensation module is connected to the second end of the driving module, and the compensation module is used to compensate for the threshold voltage of the driving module.

[0028] Based on the same inventive concept, the present application also discloses a pixel circuit driving method, which is applied to the above-mentioned pixel circuit, wherein the pixel circuit includes a driving module and a first light emitting control module, and the method includes:

[0029] In the aging stage, the signal on the light-emitting control signal line is used to drive the first light-emitting control module to turn off, and the aging voltage is written into the second end of the driving module by using the aging control signal line.

[0030] In one embodiment, the pixel circuit driving method further includes:

[0031] In the aging stage, the second ends of the driving modules in the respective pixel circuits are connected by using the aging control signal line, and the aging voltage is written into the second ends of the driving modules in the respective pixel circuits through the aging control signal line;

[0032] Preferably, it also includes:

[0033] In the light-emitting stage, the switch module is used to disconnect the aging control signal line connected between the second ends of the driving modules in each of the pixel circuits;

[0034] Preferably, in the light emitting stage, the aging control signal line connected between the second ends of the driving modules in each pixel circuit is disconnected by using the switch module; comprising:

[0035] In the light-emitting phase,

[0036] The switch module is controlled to be turned off by using a signal on a switch control signal line connected to a control end of the switch module, so as to disconnect the aging control signal line connected between the second ends of the driving modules in each of the pixel circuits.

[0037] Based on the same inventive concept, the present application also discloses a display panel, which includes the pixel circuit as described above.

[0038] Compared with the prior art, the pixel circuit provided in the present application uses the signal on the light-emitting control signal line to drive the first light-emitting control module to turn off during the aging stage, thereby preventing the light-emitting module from being lit, thereby reducing the risk of screen burn-in. At the same time, the aging voltage is written into the second end of the driving module by using the aging control signal line. The source-drain voltage difference of the driving module can be appropriately increased by adjusting the aging voltage, thereby better reducing the probability of bright spots. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 A schematic diagram of a pixel circuit provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of a pixel circuit provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of a pixel circuit provided by another embodiment of the present application;

[0043] Figure 4 A schematic diagram of a pixel circuit provided by another embodiment of the present application;

[0044] Figure 5 A schematic diagram of a pixel circuit provided by another embodiment of the present application;

[0045] Figure 6 A schematic diagram of a pixel circuit provided by another embodiment of the present application;

[0046] Figure 7 A schematic diagram of a pixel circuit provided by another embodiment of the present application;

[0047] Figure 8 A circuit diagram of a pixel circuit provided in another embodiment of the present application;

[0048] Fig. 9 This is a flowchart of a pixel circuit driving method provided by another embodiment of the present application.

[0049] Marking Description:

[0050] 100. Pixel circuit. DETAILED DESCRIPTION

[0051] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0052] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] When the driving transistor in the pixel circuit is aged, in order to achieve a better bright spot elimination effect, a large voltage difference needs to be applied to the source and drain of the driving transistor. Currently, the voltage on the first power line VDD and the voltage on the second power line VSS are usually used as the most effective positive and negative voltages for eliminating bright spots. However, as the voltage difference increases, the current also increases, and the brightness of the screen also increases. During the aging process, the screen will appear "bright", resulting in the problem of screen burn-in.

[0054] Based on this, the present application provides a pixel circuit solution to solve the above problems, with specific reference to the following embodiments.

[0055] Reference Figure 1 As shown, an embodiment of the present application discloses a pixel circuit 100, which includes a driving module, a light-emitting module, a first light-emitting control module and an aging control signal line Vlow.

[0056] The first end of the driving module is connected to the first power line VDD, the cathode of the light emitting module is connected to the second power line VSS, and the driving module is used to control the light emitting module to emit light according to the control signal of its own control end during the light emitting stage.

[0057] The control end of the first light-emitting control module is connected to the light-emitting control signal line EM, the first end of the first light-emitting control module is connected to the second end of the driving module, the second end of the first light-emitting control module is connected to the anode of the light-emitting module, and the first light-emitting control module is used to respond to the signal on the light-emitting control signal line EM to turn on in the light-emitting stage and turn off in the aging stage.

[0058] The aging control signal line Vlow is connected to the second end of the driving module. The aging control signal line Vlow is used to write the aging voltage into the second end of the driving module during the aging stage.

[0059] The first power line VDD is connected to the first power voltage, the second power line VSS is connected to the second power voltage, the first power voltage is positive, and the second power voltage is negative. In the aging stage, the voltage on the first power line VDD and the aging voltage are used as positive and negative voltages to eliminate bright spots.

[0060] The pixel circuit 100 provided in this embodiment drives the first light-emitting control module to turn off by using the signal on the light-emitting control signal line Vlow during the aging stage to prevent the light-emitting module from being lit, thereby reducing the risk of screen burn-in. At the same time, the aging voltage is written into the second end of the driving module by using the aging control signal line Vlow, and the source-drain voltage difference of the driving module can be appropriately increased by adjusting the aging voltage, thereby better reducing the probability of bright spots. At the same time, it is prevented that the first light-emitting control module is damaged by a large current.

[0061] Reference Figure 2 As shown, in one embodiment, the second ends of the driving modules in each pixel circuit are connected via an aging control signal line Vlow.

[0062] In the aging stage, the aging voltage is written into the second end of the driving module in each pixel circuit 100 through the aging control signal line Vlow. It is not necessary to prepare an aging control signal line Vlow for each pixel circuit 100. Only one aging control signal line Vlow is needed in each display panel to provide an aging signal, and the aging signal can be written into the second end of the driving module in each pixel circuit 100 through the aging control signal line Vlow, which is conducive to reducing costs and circuit complexity. Preferably, the aging voltage includes -25V to -20V, such as -25V, -22V, -20V, etc. This negative voltage can ensure that the source-drain voltage difference of the driving module is large enough to better reduce the probability of bright spots.

[0063] Reference Figure 3 As shown, in one embodiment, a switch module is connected to the aging control signal line Vlow connected to the second end of the driving module in each pixel circuit, and the control end of the switch module is connected to the switch control signal line Vzl. The switch module is used to respond to the signal on the switch control signal line Vzl to turn on in the aging stage and turn off in the light-emitting stage.

[0064] Specifically, the switch module is turned on in the aging stage, so that the aging voltage in the aging control signal line Vlow is written into the second end of the driving module in each pixel circuit 100. The switch module is turned off in the aging stage to avoid interference at the second end of the driving module in each pixel circuit 100, thereby affecting the normal dot screen effect.

[0065] Reference Figure 4 As shown, in one embodiment, the pixel circuit 100 also includes a data writing module, the control end of the data writing module is connected to the second scanning signal line SACN2, the first end of the data writing module is connected to the data line Vdata, and the second end of the data writing module is connected to the first end of the driving module. The data writing module is used to respond to the signal on the second scanning signal line SACN2, and write a voltage related to the data voltage on the data line Vdata to the control end of the driving module in the data writing stage, so that the driving module can generate a driving current according to the data voltage in the light-emitting stage to drive the light-emitting module to emit light.

[0066] Reference Figure 5 As shown, in one embodiment, the pixel circuit 100 also includes a storage module, which is connected to the control end of the driving module and is used to store the voltage of the control end of the driving module; further, the storage module includes a storage capacitor, a first end of the storage capacitor is connected to the control end of the driving module, and a second end of the storage capacitor is connected to the first power line VDD.

[0067] Reference Figure 6 As shown, in one embodiment, the pixel circuit 100 also includes a second light-emitting control module, a first end of the second light-emitting control module is connected to the first end of the driving module, a control end of the second light-emitting control module is connected to the light-emitting control signal line EM, a second end of the second light-emitting control module is connected to the first power line VDD, and the second light-emitting control module is used to respond to the signal on the light-emitting control signal line EM and be turned on during the light-emitting stage, so as to avoid the light-emitting module from emitting light during the data writing stage.

[0068] Reference Figure 7 As shown, in one embodiment, the pixel circuit 100 also includes a first reset module, the control end of the first reset module is connected to the first scan signal line SCAN1, the first end of the first reset module is connected to the control end of the driving module, and the second end of the first reset module is connected to the reference signal line Vref. The first reset module is used to reset the control end of the driving module to improve the driving effect of the driving module.

[0069] Please continue to refer to Figure 7As shown, in one embodiment, the pixel circuit 100 also includes a second reset module, the control end of the second reset module is connected to the first scan signal line SCAN1, the first end of the second reset module is connected to the anode of the light-emitting module, and the second end of the second reset module is connected to the reference signal line Vref. The second reset module is used to reset the anode of the light-emitting module to enhance the light-emitting effect of the light-emitting module.

[0070] Please continue to refer to Figure 7 As shown, in one embodiment, the pixel circuit 100 further includes a compensation module, the control end of the compensation module is connected to the second scan signal line SCAN2, the first end of the compensation module is connected to the control end of the driving module, the second end of the compensation module is connected to the second end of the driving module, and the compensation module is used to compensate for the threshold voltage of the driving module. Preferably, the compensation module is a dual-gate threshold compensation transistor. Compared with a single-gate transistor, a dual-gate transistor has a lower leakage current, which is beneficial to reducing the potential fluctuation of the gate of the driving module.

[0071] In one embodiment, the pixel circuit 100 is a 7T1C circuit, and its connection relationship is detailed in Figure 8 In other embodiments, the pixel circuit 100 may be a 7T2C circuit, an 8T1C circuit, or other circuits, which are not specifically limited.

[0072] Please continue to refer to Figure 8 As shown, the driving module includes a transistor T1, the light-emitting module includes an OLED or an AMOLED, the data writing module includes a transistor T2, the compensation module includes a transistor T3, the first reset module includes a transistor T4, the first light-emitting control module includes a transistor T6, the second light-emitting control module includes a transistor T5, and the second reset module includes a transistor T7.

[0073] Another embodiment of the present application discloses a pixel circuit driving method, which is applied to the pixel circuit 100 in the above embodiment, referring to Figure 1 The pixel circuit 100 includes a driving module and a first light emitting control module. The pixel circuit driving method includes the following steps:

[0074] Step S10: In the aging stage, the signal on the light-emitting control signal line Vlow is used to drive the first light-emitting control module to turn off, and the aging voltage is written into the second end of the driving module using the aging control signal line Vlow.

[0075] The pixel circuit driving method provided in this embodiment uses the signal on the light control signal line Vlow to drive the first light control module to turn off during the aging stage to prevent the light module from being lit, thereby reducing the risk of screen burn-in. At the same time, the aging control signal line Vlow is used to write the aging voltage to the second end of the driving module, and the source-drain voltage difference of the driving module can be appropriately increased by adjusting the aging voltage to better reduce the probability of bright spots. At the same time, it is prevented that the large current causes damage to the first light control module.

[0076] Reference Fig. 9 As shown, in one embodiment, the pixel circuit driving method includes the following steps:

[0077] Step S20, in the aging stage, the second ends of the driving modules in each pixel circuit 100 are connected by using the aging control signal line Vlow, and the aging voltage is written into the second ends of the driving modules in each pixel circuit 100 through the aging control signal line Vlow; Figure 2 . It is not necessary to prepare an aging control signal line Vlow for each pixel circuit 100. Only one aging control signal line Vlow is needed in each display panel to provide an aging signal, and the aging signal can be written into the second end of the driving module in each pixel circuit 100 through the aging control signal line Vlow, which is beneficial to reduce costs and circuit complexity. Preferably, the aging voltage includes -25V to -20V, such as -25V, -22V, -20V, etc. The negative voltage can ensure that the source-drain voltage difference of the driving module is large enough to better reduce the probability of bright spots.

[0078] Furthermore, the pixel circuit driving method comprises the following steps:

[0079] Step S30: In the light-emitting stage, the aging control signal line Vlow connected between the second ends of the driving modules in each pixel circuit is disconnected by using the switch module;

[0080] Further, step S30, in the light emitting stage, using the switch module to disconnect the aging control signal line Vlow between the second ends of the driving modules in each pixel circuit; comprising:

[0081] In the light-emitting stage, the switch module is turned off by using the signal on the switch control signal line Vzl connected to the control end of the switch module to disconnect the aging control signal line Vlow connected to the second end of the driving module in each pixel circuit. Figure 3 Specifically, the switch module is turned on in the aging stage, so that the aging voltage in the aging control signal line Vlow is controlled to the second end of the driving module in each pixel circuit 100. The switch module is turned off in the aging stage to avoid interference at the second end of the driving module in each pixel circuit 100, thereby affecting the normal dot screen effect.

[0082] In one embodiment, the pixel circuit 100 is a 7T1C circuit, and its connection relationship is detailed in Figure 8 In other embodiments, the pixel circuit 100 may be a 7T2C circuit, an 8T1C circuit, or other circuits, which are not specifically limited.

[0083] Another embodiment of the present application discloses a display panel, which includes the pixel circuit 100 in the above embodiment.

[0084] The display panel provided in this embodiment has a pixel circuit 100 that drives the first light-emitting control module to turn off during the aging stage using the signal on the light-emitting control signal line Vlow to prevent the light-emitting module from being lit, thereby reducing the risk of screen burn-in. At the same time, the aging voltage is written into the second end of the driving module using the aging control signal line Vlow, and the source-drain voltage difference of the driving module can be appropriately increased by adjusting the aging voltage, thereby better reducing the probability of bright spots. At the same time, it prevents large currents from damaging the first light-emitting control module, which is beneficial to improving the display performance of the display panel.

[0085] Another embodiment of the present embodiment discloses a display device, which includes the display panel in the above embodiment. The display device can be mounted on a smart device (such as a mobile phone, VR device, computer, TV, car display, etc.).

[0086] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0087] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0088] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A pixel circuit, characterized in that: include: A driving module, a light emitting module, a first light emitting control module and an aging control signal line; The first end of the driving module is connected to the first power line, the cathode of the light-emitting module is connected to the second power line, and the driving module is used to control the light-emitting module to emit light according to the control signal of its own control end during the light-emitting stage; The control end of the first light-emitting control module is connected to the light-emitting control signal line, the first end of the first light-emitting control module is connected to the second end of the driving module, the second end of the first light-emitting control module is connected to the anode of the light-emitting module, and the first light-emitting control module is used to respond to the signal on the light-emitting control signal line to turn on in the light-emitting stage and turn off in the aging stage; The aging control signal line is connected to the second end of the driving module, and the aging control signal line is used to write the aging voltage into the second end of the driving module during the aging stage.

2. The pixel circuit according to claim 1, wherein: The second ends of the driving modules in the respective pixel circuits are connected via the aging control signal line; in the aging stage, the aging voltage is written into the second ends of the driving modules in the respective pixel circuits via the aging control signal line; Preferably, the aging voltage includes -25V to -20V.

3. The pixel circuit according to claim 2, characterized in that: A switch module is connected to the aging control signal line connected to the second end of the driving module in each pixel circuit, and a control end of the switch module is connected to the switch control signal line; The switch module is used to respond to the signal on the switch control signal line to be turned on during the aging stage and turned off during the light-emitting stage.

4. The pixel circuit according to claim 1, wherein: The pixel circuit further comprises: A data writing module, wherein the control end of the data writing module is connected to the second scanning signal line, the first end of the data writing module is connected to the data line, and the second end of the data writing module is connected to the first end of the driving module. The data writing module is used to respond to the signal on the second scanning signal line and write a voltage related to the data voltage on the data line to the control end of the driving module during the data writing stage.

5. The pixel circuit according to claim 1, wherein: The pixel circuit further comprises: a storage module, the storage module being connected to the control end of the driving module and being used to store the voltage of the control end of the driving module; Preferably, the storage module comprises a storage capacitor, a first end of the storage capacitor is connected to the control end of the driving module, and a second end of the storage capacitor is connected to the first power line.

6. The pixel circuit according to claim 1, wherein: The pixel circuit further comprises: A second light-emitting control module, wherein the first end of the second light-emitting control module is connected to the first end of the driving module, the control end of the second light-emitting control module is connected to a light-emitting control signal line, the second end of the second light-emitting control module is connected to the first power line, and the second light-emitting control module is used to respond to a signal on the light-emitting control signal line to turn on during the light-emitting stage.

7. The pixel circuit according to claim 1, wherein: The pixel circuit further comprises: a first reset module, wherein a control end of the first reset module is connected to a first scanning signal line, a first end of the first reset module is connected to a control end of the driving module, a second end of the first reset module is connected to a reference signal line, and the first reset module is used to reset the control end of the driving module; Preferably, the pixel circuit further includes: a second reset module, wherein a control end of the second reset module is connected to the first scan signal line, a first end of the second reset module is connected to the anode of the light emitting module, a second end of the second reset module is connected to the reference signal line, and the second reset module is used to reset the anode of the light emitting module; Preferably, the pixel circuit further includes: A compensation module, wherein the control end of the compensation module is connected to the second scanning signal line, the first end of the compensation module is connected to the control end of the driving module, the second end of the compensation module is connected to the second end of the driving module, and the compensation module is used to compensate for the threshold voltage of the driving module.

8. A pixel circuit driving method, applied to the pixel circuit according to any one of claims 1 to 7, characterized in that: The pixel circuit includes a driving module and a first light emitting control module, and the method includes: In the aging stage, the signal on the light-emitting control signal line is used to drive the first light-emitting control module to turn off, and the aging voltage is written into the second end of the driving module by using the aging control signal line.

9. The pixel circuit driving method according to claim 8, characterized in that: The pixel circuit driving method further includes: In the aging stage, the second ends of the driving modules in the respective pixel circuits are connected by using the aging control signal line, and the aging voltage is written into the second ends of the driving modules in the respective pixel circuits through the aging control signal line; Preferably, it also includes: In the light-emitting stage, the aging control signal line connected between the second ends of the driving modules in each of the pixel circuits is disconnected by using a switch module; Preferably, in the light emitting stage, the aging control signal line connected between the second ends of the driving modules in each pixel circuit is disconnected by using the switch module; comprising: In the light-emitting phase, The switch module is controlled to be turned off by using a signal on a switch control signal line connected to a control end of the switch module, so as to disconnect the aging control signal line connected between the second ends of the driving modules in each of the pixel circuits.

10. A display panel, characterized in that: Comprising the pixel circuit as described in any one of claims 1-7.

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