Display panel and electronic device

Abstract

A display panel (10) and an electronic device. A first initial power source end is coupled to an anode of a first LED (1034) by means of a first switch circuit (1032), a second initial power source end is coupled to an anode of a second LED (1035) by means of a second switch circuit (1033), the anode of the first LED (1034) and the anode of the second LED (1035) are respectively coupled to a first end and a second end of a control circuit (1031), a cathode of the first LED (1034) and a cathode of the second LED (1035) are coupled to a negative power voltage (Vss), a third end of the control circuit (1031) is coupled to a positive power voltage (Vdd), and a fourth end of the control circuit (1031) inputs a data signal. When a pixel circuit (103) is in a reset mode, the first switch circuit (1032) and the second switch circuit (1033) are turned on, the voltage of the anode of the first LED (1034) is a first initial voltage (Vinit1), and the voltage of the anode of the second LED (1035) is a second initial voltage (Vinit2), wherein the first initial voltage (Vinit1) is different from the second initial voltage (Vinit2). The present application is conducive to solving the problem of chromatic aberrations or the uneven brightness of light emitted from two LEDs in the pixel circuit (103).

Description

Display panels and electronic devices

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on February 29, 2024, with application number 202410232626.9 and invention name “Display Panel and Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a display panel and an electronic device. Background Art

[0003] As computers, mobile phones, tablet computers and other electronic products are increasingly used in people's work and life, they have brought great convenience and fun to people. At the same time, people's requirements for the display screens of electronic devices are becoming more and more differentiated. For example, due to the large viewing angle of the light-emitting diode (LED) display screen, people can easily be spied on by others when browsing the information on the screen, which puts personal privacy, business secrets or technical information at risk of leakage. But sometimes it is necessary to share the information on the display screen with others. Therefore, the LED display screen needs to have the ability to switch between narrow viewing angle mode and wide viewing angle mode. For example, some users need the display screen to be able to switch between eye protection mode and non-eye protection mode.

[0004] In summary, people need LED displays to be able to switch between different operating modes. To achieve this, LED displays can include two LEDs in their pixel circuits. For example, if the two LEDs have different emission angles, the display can be switched between narrow and wide viewing angles by controlling the on and off of the two LEDs. Another example is if the two LEDs emit blue light at different wavelengths. By controlling the two LEDs to emit different wavelengths of blue light, the display can be switched between eye protection mode and non-eye protection mode.

[0005] Since the two LEDs have different light emitting angles, or different wavelengths of blue light, or other different parameters, the designs of the two LEDs may be different, and there may be color difference or uneven brightness in the light emitted by the two LEDs during operation. Summary of the Invention

[0006] Embodiments of the present application provide a display panel and an electronic device, which are helpful in solving the problem of color difference or brightness of light emitted by two LEDs in a pixel circuit.

[0007] In a first aspect, an embodiment of the present application provides a display panel, which includes a plurality of pixel circuits, each pixel circuit including a control circuit, a first switching circuit, a second switching circuit, a first LED, and a second LED.

[0008] The first end of the first switch circuit and the first end of the second switch circuit are coupled to the first initial power supply terminal and the second initial power supply terminal respectively, the second end of the first switch circuit and the second end of the second switch circuit are coupled to the anode of the first LED and the anode of the second LED respectively, the anode of the first LED and the anode of the second LED are coupled to the first end and the second end of the control circuit respectively, the cathode of the first LED and the cathode of the second LED are coupled to the negative power supply voltage Vss, the third end of the control circuit is coupled to the positive power supply voltage Vdd, and the fourth end of the control circuit is coupled to the data signal terminal, which inputs the data signal.

[0009] a control circuit, configured to provide a positive power supply voltage Vdd to the first LED and the second LED, and to provide a light emitting current to the first LED and the second LED based on a data signal;

[0010] When the pixel circuit is in reset mode, the first switch circuit is turned on and the second switch circuit is turned on, the voltage of the anode of the first LED is the first initial voltage input to the first initial power supply terminal, and the voltage of the anode of the second LED is the second initial voltage input to the second initial power supply terminal, and the first initial voltage is different from the second initial voltage.

[0011] Optionally, the first LED is an organic LED (OLED), a quantum dot LED (QLED), a microLED or other light-emitting diode, and the second LED is an OLED, a QLED, a microLED or other light-emitting diode, which is not limited here.

[0012] It can be seen that for two LEDs with different parameters, using different voltages for resetting is beneficial to solving the problem of color difference or uneven brightness of light emitted by the two LEDs in the pixel circuit.

[0013] In conjunction with the first aspect, in one possible implementation, the control circuit includes a third switch circuit, a fourth switch circuit, and a drive circuit, wherein a first terminal of the drive circuit is coupled to a positive power supply voltage Vdd, a second terminal of the drive circuit is coupled to a first terminal of the third switch circuit, a third terminal of the drive circuit is coupled to a data signal terminal of the control circuit, a first terminal of the fourth switch circuit is coupled to a second terminal of the third switch circuit, and a second terminal of the fourth switch circuit and a second terminal of the third switch circuit are coupled to a first terminal and a second terminal of the control circuit, respectively.

[0014] A main driving tube in the driving circuit is used to provide a light-emitting current to the first LED and the second LED based on the data signal;

[0015] When the pixel circuit is in the first operating mode, the third switch circuit is turned on, the fourth switch circuit is turned off, the first LED does not emit light, and the second LED emits light; when the pixel circuit is in the second operating mode, both the third switch circuit and the fourth switch circuit are turned on, and both the first LED and the second LED emit light; when the pixel circuit is in the third operating mode, the third switch circuit is turned off, and both the first LED and the second LED do not emit light.

[0016] By flexibly controlling the third switch circuit and the fourth switch circuit, it is possible to enable the pixel circuit to operate in different operating modes, or to enable the pixel circuit to switch between different operating modes.

[0017] In conjunction with the first aspect, in one possible implementation, the control circuit includes a third switch circuit, a fourth switch circuit, and a drive circuit, wherein a first terminal of the drive circuit is coupled to a positive power supply voltage Vdd, a first terminal of the third switch circuit and a first terminal of the fourth switch circuit are both coupled to a second terminal of the drive circuit, a third terminal of the drive circuit is coupled to a data signal terminal of the control circuit, and a second terminal of the third switch circuit and a second terminal of the fourth switch circuit are coupled to a second terminal and a first terminal of the control circuit, respectively.

[0018] A main driving tube in the driving circuit, configured to provide a light-emitting current to the first LED and the second LED based on a data signal;

[0019] When the pixel circuit is in the first operating mode, the third switch circuit is turned on and the fourth switch circuit is turned off, the first LED does not emit light, and the second LED emits light; when the pixel circuit is in the second operating mode, the third switch circuit is turned on and the fourth switch circuit is turned on, and both the first LED and the second LED emit light; when the pixel circuit is in the third operating mode, the third switch circuit is turned off and the fourth switch circuit is turned off, and both the first LED and the second LED do not emit light.

[0020] By flexibly controlling the third switch circuit and the fourth switch circuit, it is possible to enable the pixel circuit to operate in different operating modes, or to enable the pixel circuit to switch between different operating modes.

[0021] In combination with the first aspect, in one possible implementation, the control circuit further includes a fifth switch circuit, and the first end of the drive circuit is coupled to the positive power supply voltage Vdd through the fifth switch circuit.

[0022] When the pixel circuit is in the first operating mode or the second operating mode, the fifth switch circuit is turned on; when the pixel circuit is in the third operating mode, the fifth switch circuit is turned off.

[0023] By introducing the fifth switch circuit into the control circuit, the pixel circuit can be controlled more flexibly to operate in different operating modes.

[0024] In combination with the first aspect, in a possible implementation, the driving circuit includes a main driving transistor, a first transistor, a second transistor, a third transistor and a capacitor.

[0025] Wherein, the first end of the capacitor is coupled to the positive power supply voltage Vdd, the second end of the capacitor is coupled to the gate of the main driving tube, the second end of the first transistor and the first end of the third transistor, the first end of the first transistor is coupled to the third initial power supply terminal, the first end of the main driving tube and the first end of the second transistor are both coupled to the first end of the driving circuit, the second end of the second transistor is coupled to the third end of the driving circuit, and the second end of the main driving tube and the second end of the third transistor are coupled to the second end of the driving circuit.

[0026] In combination with the first aspect, in a possible implementation, the driving circuit includes a main driving transistor, a first transistor, a second transistor, a third transistor and a capacitor.

[0027] Wherein, the first end of the capacitor is coupled to the positive power supply voltage Vdd, the second end of the capacitor is coupled to the gate of the main driving tube and the first end of the third transistor, the first end of the main driving tube and the first end of the second transistor are both coupled to the first end of the driving circuit, the second end of the second transistor is coupled to the third end of the driving circuit, the second end of the main driving tube, the second end of the first transistor and the second end of the third transistor are coupled to the second end of the driving circuit, and the first end of the first transistor is coupled to the third initial power supply terminal.

[0028] By moving the position of the third transistor, the possibility of grid leakage of the main driving tube is reduced, which is beneficial for the main driving tube to provide a stable luminous current for the first LED and the second LED.

[0029] In conjunction with the first aspect, in one possible implementation, the voltage input to the third initial power supply terminal is the first initial voltage or the second initial voltage. This approach can reduce one signal line, thereby simplifying the circuit.

[0030] In combination with the first aspect, in one possible implementation, the light emitted by the first LED and the light emitted by the second LED are the same color, and the wavelength of the light emitted by the first LED is different from the wavelength of the light emitted by the second LED, or the luminous efficiency of the first LED is different from the luminous efficiency of the second LED, or the luminous angle of the first LED is different from the luminous angle of the second LED.

[0031] By selecting a first LED and a second LED with different functions, different user needs can be met. For example, if the wavelength of blue light emitted by the first LED is greater than that of the second LED, switching between eye protection mode and non-eye protection mode can be achieved by controlling the on and off of the first and second LEDs. For another example, if the light emission angle of the first LED is wider than that of the second LED, the first LED can be regarded as a wide-viewing angle LED and the second LED as a narrow-viewing angle LED. Switching between wide-viewing angle mode and narrow-viewing angle mode can be achieved by controlling the on and off of the first and second LEDs.

[0032] In a second aspect, an embodiment of the present application provides an electronic device, which includes a display panel as in the first aspect or any possible implementation of the first aspect.

[0033] It can be understood that the beneficial effects of the electronic device described in the second aspect can refer to the beneficial effects of the display panel described in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic diagram of a system architecture provided by an embodiment of the present application;

[0035] FIG2 is a schematic structural diagram of a pixel circuit provided in an embodiment of the present application;

[0036] FIG3a is a schematic structural diagram of another pixel circuit provided in an embodiment of the present application;

[0037] FIG3 b is a schematic structural diagram of another pixel circuit provided in an embodiment of the present application;

[0038] FIG3 c is a schematic structural diagram of another pixel circuit provided in an embodiment of the present application;

[0039] FIG3 d is a schematic structural diagram of another pixel circuit provided in an embodiment of the present application;

[0040] FIG4a is a schematic diagram of a specific structure of a pixel circuit provided in an embodiment of the present application;

[0041] FIG4 b is a signal timing diagram provided by an embodiment of the present application;

[0042] FIG5a is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application;

[0043] FIG5 b is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application;

[0044] FIG6 a is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application;

[0045] FIG6 b is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application;

[0046] FIG6 c is a schematic diagram of a specific structure of another pixel circuit provided in an embodiment of the present application;

[0047] FIG7 a is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application;

[0048] FIG7b is another signal timing diagram provided in an embodiment of the present application;

[0049] FIG7 c is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application;

[0050] FIG7 d is a schematic diagram of the specific structure of another pixel circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] The terms "first", "second", "third" and "fourth" in the specification, claims and drawings of this application are used to distinguish different objects rather than to describe a specific order.

[0052] "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating the existence of three relationships. For example, "A and / or B" means: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0053] The embodiments of the present application are described below with reference to the accompanying drawings.

[0054] Referring to Figure 1 , which is a schematic diagram of a system architecture provided by an embodiment of the present application, the system architecture includes a display panel 10, a driver module 11, a timing controller (TCON) 12, and a system-on-chip (SOC) 14 on a motherboard 13. The display panel 10 is connected to the driver module 11, which is connected to the TCON 12. The SOC 14 on the motherboard 13 is connected to the TCON 12.

[0055] The display panel 10 includes a gate on array (GOA) circuit 101 and a pixel array 102. The GOA circuit 101 is connected to the pixel array 102. The pixel array includes a plurality of pixel circuits 103. The driving module 11 is connected to the GOA circuit 101 and the pixel circuits 103. The TCON 12 provides timing control signals to the pixel circuits 103 via the GOA circuit 101.

[0056] When the SOC 14 on the motherboard 13 detects a control command, it sends a data signal and a control signal to the TCON 12 via the mobile industry processor interface (MIPI). The TCON 12 inputs the data signal to the data signal terminal of the pixel circuit 103 through the driver module 11. Based on the control signal, the TCON 12 controls the conduction and disconnection of the switch circuit in the pixel circuit 103 through the GOA circuit 101, so that the pixel circuit 103 operates in the operating mode corresponding to the control command.

[0057] It should be noted that there may be one or more driver modules 11. When there is only one driver module 11, the driver module 11 provides data signals to all pixel circuits 103 on the display panel 10. When there are multiple driver modules 11, the multiple driver modules 11 provide data signals to pixel circuits 103 in different areas of the display panel 10.

[0058] In one possible implementation, as shown in FIG2 , the pixel circuit 103 includes a control circuit 1031, a first switch circuit 1032, a second switch circuit 1033, a first LED 1034, and a second LED 1035. A first terminal of the first switch circuit 1032 and a first terminal of the second switch circuit 1033 are coupled to a first initial power terminal and a second initial power terminal, respectively. A second terminal of the first switch circuit 1032 and a second terminal of the second switch circuit 1033 are coupled to an anode of the first LED 1034 and an anode of the second LED 1035, respectively. The anodes of the first LED 1034 and the anodes of the second LED 1035 are coupled to a first terminal and a second terminal of the control circuit 1031, respectively. The cathodes of the first LED 1034 and the cathodes of the second LED 1035 are coupled to a negative power supply voltage Vss. A third terminal of the control circuit 1031 is coupled to a positive power supply voltage Vdd. A fourth terminal of the control circuit 1031 is coupled to a data signal terminal, which inputs a data signal.

[0059] Optionally, the first end and the second end of the control circuit may be the same port, or different ports.

[0060] The control circuit 1031 is configured to provide a positive power supply voltage Vdd to the first LED 1034 and the second LED 1035 , and to provide a light-emitting current to the first LED 1034 and the second LED 1035 based on a data signal.

[0061] When the pixel circuit 103 operates in the reset mode, the first switch circuit 1032 is turned on and the second switch circuit 1033 is turned on, the voltage of the anode of the first LED 1034 is the first initial voltage Vinit1 inputted at the first initial power supply terminal, and the voltage of the anode of the second LED 1035 is the second initial voltage Vinit2 inputted at the second initial power supply terminal, and the first initial voltage Vinit1 is different from the second initial voltage Vinit2.

[0062] Optionally, the first LED is an organic LED (OLED), a quantum dot LED (QLED), a microLED or other light-emitting diode, and the second LED is an OLED, a QLED, a microLED or other light-emitting diode, which is not limited here.

[0063] Resetting the first LED 1034 and the second LED 1035 by using two different voltages is helpful to solve the problem of color difference or uneven brightness of the light emitted by the first LED and the second LED.

[0064] In one feasible implementation, the first switch circuit 1032 is implemented based on one or more transistors. In one example, the first switch circuit 1032 is implemented based on a transistor. If the transistor is a P-type transistor, the source and drain of the P-type transistor are the first and second terminals of the first switch circuit 1032, respectively. When a low level is input to the gate of the P-type transistor, the source and drain of the P-type transistor are turned on, i.e., the first switch circuit 1032 is turned on. When a high level is input to the gate of the P-type transistor, the source and drain of the P-type transistor are turned off, i.e., the first switch circuit 1032 is turned off. If the transistor is an N-type transistor, the drain and source of the N-type transistor are the first and second terminals of the first switch circuit 1032, respectively. When a high level is input to the gate of the N-type transistor, the source and drain of the N-type transistor are turned on, i.e., the first switch circuit 1032 is turned on. When a low level is input to the gate of the N-type transistor, the source and drain of the P-type transistor are turned off, i.e., the first switch circuit 1032 is turned off. Similarly, the second switch circuit 1033 is implemented based on one or more transistors. For details, please refer to the relevant description of the first switch circuit 1032, which will not be described here.

[0065] It should be noted that the transistors in this application are thin film transistors (TFTs), such as low temperature poly-silicon (LTPS) TFTs, or metal-oxide-semiconductor field-effect transistors (MOSFETs), or other types of transistors, which are not limited here.

[0066] In one possible implementation, as shown in FIG3 a , the control circuit 1031 includes a third switch circuit 1037, a fourth switch circuit 1038, and a drive circuit 1036, wherein a first terminal of the drive circuit 1036 is coupled to a positive power supply voltage Vdd, a second terminal of the drive circuit 1036 is coupled to a first terminal of the third switch circuit 1037, a third terminal of the drive circuit 1036 is coupled to a data signal terminal of the control circuit 1031, a first terminal of the fourth switch circuit 1038 is coupled to a second terminal of the third switch circuit 1037, a second terminal of the fourth switch circuit 1038 and a second terminal of the third switch circuit 1037 are coupled to a first terminal and a second terminal of the control circuit 1031, respectively.

[0067] The main driving transistor in the driving circuit 1036 is used to provide a light-emitting current to the first LED 1034 and the second LED 1035 based on the data signal;

[0068] When the pixel circuit 103 is in the first operating mode, the third switch circuit 1037 is turned on, the fourth switch circuit 1038 is turned off, the first LED 1034 does not emit light, and the second LED 1035 emits light; when the pixel circuit 103 is in the second operating mode, the third switch circuit and the fourth switch circuit 1038 are both turned on, and the first LED 1034 and the second LED 1035 both emit light; when the pixel circuit is in the third operating mode, the third switch circuit is turned off, and both the first LED 1034 and the second LED 1035 do not emit light.

[0069] It should be noted that when the third switch circuit 1037 is turned on, the first terminal of the third switch circuit 1037 is electrically connected to the second terminal, and the first terminal of the third switch circuit 1037 is electrically connected to the third terminal; when the third switch circuit 1037 is turned off, the first terminal of the third switch circuit 1037 is disconnected from the second terminal, and the first terminal of the third switch circuit 1037 is disconnected from the third terminal. Optionally, the second terminal and the third terminal of the third switch circuit 1037 can be the same port or different ports. When the fourth switch circuit 1038 is turned on, the first terminal and the second terminal of the fourth switch circuit 1038 are electrically connected, and when the fourth switch circuit 1038 is turned off, the first terminal and the second terminal of the fourth switch circuit 1038 are disconnected.

[0070] The third switch circuit 1037 is implemented based on one or more transistors, and the fourth switch circuit 1038 is implemented based on one or more transistors. For details, please refer to the relevant description of the first switch circuit 1032, which will not be described again here.

[0071] By flexibly controlling the third switch circuit 1037 and the fourth switch circuit 1038 , the pixel circuit 103 can be operated in different operation modes, or the pixel circuit 103 can be switched between different operation modes.

[0072] In one possible implementation, as shown in FIG3 b , the control circuit 1031 includes a third switch circuit 1037, a fourth switch circuit 1038, and a driver circuit 1036, wherein a first terminal of the driver circuit 1036 is coupled to a positive power supply voltage Vdd, a first terminal of the third switch circuit 1037 and a first terminal of the fourth switch circuit 1038 are both coupled to a second terminal of the driver circuit 1036, a third terminal of the driver circuit 1036 is coupled to a data signal terminal of the control circuit 1031, and a second terminal of the third switch circuit 1037 and a second terminal of the fourth switch circuit 1038 are coupled to a second terminal and a first terminal of the control circuit 1031, respectively.

[0073] The main driving transistor in the driving circuit 1036 is used to provide a light-emitting current to the first LED 1034 and the second LED 1035 based on the data signal;

[0074] When the pixel circuit is in the first operating mode, the third switch circuit is turned on and the fourth switch circuit is turned off, the first LED 1034 does not emit light, and the second LED 1035 emits light; when the pixel circuit is in the second operating mode, the third switch circuit is turned on and the fourth switch circuit is turned on, and both the first LED 1034 and the second LED 1035 emit light; when the pixel circuit is in the third operating mode, the third switch circuit is turned off and the fourth switch circuit is turned off, and both the first LED 1034 and the second LED 1035 do not emit light.

[0075] By flexibly controlling the third switch circuit 1037 and the fourth switch circuit 1038 , the pixel circuit 103 can be operated in different operation modes, or the pixel circuit 103 can be switched between different operation modes.

[0076] In one possible implementation, as shown in FIG3c and FIG3d , the control circuit 1031 further includes a fifth switch circuit 1039. The first port of the driver circuit 1036 is coupled to the positive power supply voltage Vdd via the fifth switch circuit 1039. When the pixel circuit 103 is in the first operating mode or the second operating mode, the fifth switch circuit 1039 is turned on; when the pixel circuit 103 is in the third operating mode, the fifth switch circuit 1039 is turned off.

[0077] By introducing the fifth switch circuit into the control circuit, the first LED 1034 and the second LED 1035 in the pixel circuit can be controlled to turn on and off more quickly, and the pixel circuit can be controlled to operate in different working modes more flexibly.

[0078] In one possible implementation, the light emitted by the first LED 1034 is the same color as the light emitted by the second LED 1035, and the wavelength of the light emitted by the first LED 1034 is different from the wavelength of the light emitted by the second LED 1035, or the luminous efficiency of the first LED 1034 is different from the luminous efficiency of the second LED 1035, or the luminous angle of the first LED 1034 is different from the luminous angle of the second LED 1035.

[0079] It should be noted that different people perceive light differently due to differences in eye development. When the light emitted by the first LED 1034 and the light emitted by the second LED 1035 are the same color, and the wavelengths of the light emitted by the first LED 1034 and the second LED 1035 are different, controlling the on and off of the first LED 1034 and the second LED 1035 can meet the light perception needs of different people and thus meet the usage needs of different people. For example, if both the first LED 1034 and the second LED 1035 emit blue light, and the wavelength of the blue light emitted by the first LED 1034 is greater than the wavelength of the blue light emitted by the second LED 1035, when the first LED 1034 is illuminated and the second LED 1035 is not illuminated, the pixel circuit 103 operates in the eye protection mode; when the first LED 1034 is not illuminated and the second LED 1035 is illuminated, or when the first LED 1034 and the second LED 1035 are illuminated, the pixel circuit 103 operates in the non-eye protection mode. The luminous efficiency of the first LED 1034 is different from the luminous efficiency of the second LED 1035. It should be understood that the difference in the luminous efficiency of the first LED 1034 and the luminous efficiency of the second LED 1035 means that for the user, the brightness of the first LED 1034 and the brightness of the second LED 1035 are different. By turning on and off the first LED 1034 and / or the second LED 1035, the user's different requirements for the brightness of the display panel can be met. The light-emitting angle of the first LED 1034 is different from the light-emitting angle of the second LED 1035. For example, the light-emitting angle of the first LED 1034 is wider than that of the second LED 1035, so that the first LED 1034 can be regarded as a wide-viewing angle LED and the second LED 1035 as a narrow-viewing angle LED. When the first LED 1034 is emitting light and the second LED 1035 is emitting light, or when the second LED 1035 is not emitting light, the pixel circuit 103 operates in the wide-viewing angle mode. When the first LED 1034 is not emitting light and the second LED 1035 is emitting light, the pixel circuit 103 operates in the narrow-viewing angle mode. Switching between the wide-viewing angle mode and the narrow-viewing angle mode can be achieved by controlling the on and off of the first LED 1034 and the second LED 1035.

[0080] In a possible implementation, the driving circuit 1036 includes a main driving transistor Td, a first transistor T1, a second transistor T2, a third transistor, and a capacitor C.

[0081] In which, the first end of the capacitor C is coupled to the positive power supply voltage Vdd, the second end of the capacitor C is coupled to the gate of the main driving tube Td, the second end of the first transistor T1 and the first end of the third transistor T3, the first end of the first transistor T1 is coupled to the third initial power supply end, the first end of the main driving tube Td and the first end of the second transistor T2 are both coupled to the first end of the driving circuit 1036, the second end of the second transistor T2 is coupled to the third end of the driving circuit 1036, and the second end of the main driving tube Td and the second end of the third transistor T3 are coupled to the second end of the driving circuit 1036.

[0082] The voltage input to the third initial power supply terminal is the first initial voltage or the second initial voltage, or the third initial power supply terminal is the first initial power supply terminal or the second initial power supply terminal.

[0083] In a possible implementation, the driving circuit 1036 includes a main driving transistor Td, a first transistor T1, a second transistor T2, a third transistor T3, and a capacitor.

[0084] In which, the first end of the capacitor C is coupled to the positive power supply voltage Vdd, the second end of the capacitor C is coupled to the gate of the main driving tube Td and the first end of the third transistor T3, the first end of the main driving tube Td and the first end of the second transistor are both coupled to the first end of the driving circuit 1036, the second end of the second transistor T2 is coupled to the third end of the driving circuit 1036, the second end of the main driving tube Td, the second end of the first transistor T1 and the second end of the third transistor T3 are coupled to the second end of the driving circuit 1036, and the first end of the first transistor T1 is coupled to the third initial power supply terminal.

[0085] By moving the position of the third transistor, the possibility of grid leakage of the main driving tube is reduced, thereby ensuring that the power consumption light provides a stable luminous current for the first LED and the second LED.

[0086] In a specific implementation, the first switch circuit 1032 includes a P-type transistor T8, the second switch circuit 1033 includes a P-type transistor T7, the third switch circuit 1037 includes a P-type transistor T5, the fourth switch circuit 1038 includes a P-type transistor T6, the fifth switch circuit 1039 includes a P-type transistor T4, the drive circuit 1036 includes a main drive tube Td, an N-type transistor T1, a P-type transistor T2, a P-type transistor T3, the first LED 1034 is a wide-angle LED, and the second LED 1035 is a narrow-angle LED. As shown in FIG4 a , a first end of the capacitor C is coupled to the positive power supply voltage Vdd, a second end of the capacitor C is coupled to the gate of the main driving tube Td, the first end of the transistor T1 and the second end of the transistor T2, the first end of the transistor T2 is coupled to the third initial power supply terminal, and the third initial power supply terminal inputs the third initial voltage Vinit3; the first end of the main driving tube Td and the first end of the transistor T3 are both coupled to the second end of the transistor T4, and the first end of the transistor T4 is coupled to the positive power supply voltage Vdd; the second end of the main driving tube Td and the second end of the transistor T1 are coupled to the first end of the transistor T5; the second end of the transistor T5 is coupled to the first end of the transistor T6, the first end of the transistor T7 and the anode of the second LED 1035, the second end of the transistor T7 is coupled to the second initial power supply terminal, and the second initial power supply terminal inputs the second initial voltage Vinit2; the second end of the transistor T6 is coupled to the second end of the transistor T8 and the anode of the first LED 1034, the first end of the transistor T8 is coupled to the first initial power supply terminal, and the first initial voltage Vinit1 is input to the first initial power supply terminal; The cathode of LED 1034 and the cathode of the second LED 1035 are coupled to the negative power supply voltage Vss.

[0087] Among them, the gate input signal of transistor T1 and the gate input signal of transistor T3 are both SP signals, the gate input signal of transistor T2, the gate input signal of transistor T7 and the gate input signal of transistor T8 are all S3 signals, the gate input signal of transistor T4 and the gate input signal of transistor T5 are both EM signals, and the gate input signal of transistor T6 is Vcon signal.

[0088] The timing sequence of the S3 signal, SP signal, EM signal, and Vcon signal is shown in FIG4 b . In the reset phase, the S3 signal is at a low level, and the SP signal, Vcon signal, and EM signal are all at high levels. At this time, the first and second terminals of the transistor T2 are conductive to reset the gate of the main driving tube Td. The first and second terminals of the transistor T7 are conductive to reset the anode of the second LED. The first and second terminals of the transistor T8 are conductive to reset the anode of the first LED.

[0089] During the data writing and compensation phase, the SP signal is at a low level, and the S3 signal, the Vcon signal, and the EM signal are all at a high level. At this time, the first and second terminals of the transistor T1 are conductive, and the first and second terminals of the transistor T3 are conductive. The data signal charges the gate of the main driving transistor Td through the transistor T3, the main driving transistor Td, and the transistor T1, thereby achieving data writing and Vth voltage compensation.

[0090] In the light-emitting stage, EM is at a low level, the S3 signal and the SP signal are at a high level, the first and second ends of the transistor T4 are turned on, the first and second ends of the transistor T5 are turned on, and the positive power supply voltage Vdd passes through the transistor T4, the main driving tube Td, the transistor T5, and the LED (including the first LED 1034 and the second LED 1035) to form a current path to the negative power supply voltage Vss.

[0091] When the pixel circuit shown in FIG4a operates in the wide viewing angle mode, as shown in the left figure of FIG4b , in the light-emitting stage, the Vcon signal and the EM signal are both at a low level, and the first LED 1034 and the second LED 1035 both emit light; when the pixel circuit shown in FIG4a operates in the narrow viewing angle mode, as shown in the right figure of FIG4b , in the light-emitting stage, the Vcon signal is at a high level, the EM signal is at a low level, the first LED 1034 does not emit light, and the second LED 1035 emits light.

[0092] By controlling the EM signal and the Vcon signal, the pixel circuit 103 can be switched between the narrow viewing angle mode and the wide viewing angle mode.

[0093] In another specific implementation, the first switch circuit 1032 includes a P-type transistor T8, the second switch circuit 1033 includes a P-type transistor T7, the third switch circuit 1037 includes a P-type transistor T5, the fourth switch circuit 1038 includes a P-type transistor T6, the fifth switch circuit 1039 includes a P-type transistor T4, the drive circuit 1036 includes a main drive tube Td, an N-type transistor T1, a P-type transistor T2, a P-type transistor T3, the first LED 1034 is a wide-viewing angle LED, and the second LED 1035 is a narrow-viewing angle LED. As shown in FIG5a , a first end of the capacitor C is coupled to the positive power supply voltage Vdd, a second end of the capacitor C is coupled to the gate of the main driving tube Td and the first end of the transistor T1; the first end of the main driving tube Td and the first end of the transistor T3 are both coupled to the second end of the transistor T4, and the first end of the transistor T4 is coupled to the positive power supply voltage Vdd; the second end of the main driving tube Td, the second end of the transistor T1 and the first end of the transistor T2 are all coupled to the first end of the transistor T5; the first end of the transistor T2 is coupled to the third initial power supply terminal, and the third initial power supply terminal inputs the third initial voltage Vinit3; the second end of the transistor T5 is coupled to the first end of the transistor T6, the first end of the transistor T7 and the anode of the second LED 1035, the second end of the transistor T7 is coupled to the second initial power supply terminal, and the second initial power supply terminal inputs the second initial voltage Vinit2; the second end of the transistor T6 is coupled to the second end of the transistor T8 and the anode of the first LED 1034, the first end of the transistor T8 is coupled to the first initial power supply terminal, and the first initial power supply terminal inputs the first initial voltage Vinit1; the first LED The cathode of LED 1034 and the cathode of the second LED 1035 are coupled to the negative power supply voltage Vss.

[0094] Among them, the gate input signal of transistor T1 and the gate input signal of transistor T3 are both SP signals, the gate input signal of transistor T2, the gate input signal of transistor T7 and the gate input signal of transistor T8 are all S3 signals, the gate input signal of transistor T4 and the gate input signal of transistor T5 are both EM signals, and the gate input signal of transistor T6 is Vcon signal.

[0095] It should be noted that when the pixel circuit shown in FIG5a operates in the narrow viewing angle mode or the wide viewing angle mode, the timing diagram of the S3 signal, the SP signal, the EM signal, and the Vcon signal is shown in FIG4b and will not be described again here. In the reset phase, the SP signal is at a high level, the S3 signal is at a low level, the first and second terminals of the transistor T1 are turned on, and the first and second terminals of the transistor T2 are turned on, thereby ensuring that the third initial voltage Vinit3 input from the third initial power supply terminal resets the gate of the main driving transistor Td through the transistors T2 and T1.

[0096] Compared with the pixel circuit shown in FIG4a, the pixel circuit shown in FIG5a reduces the possibility of gate leakage of the main driving tube Td, thereby facilitating the main driving tube Td to provide a stable light-emitting current for the first LED and the second LED.

[0097] Optionally, as shown in Figure 5b, based on the pixel circuit shown in Figure 5a, the driving circuit 1036 also includes a P-type transistor T9, the first end of the transistor T9 is coupled to the first end of the transistor T5, the second end of the transistor T9 is coupled to the fourth initial power supply end, the fourth initial power supply end inputs the fourth initial voltage Vinit4, and the input signal of the gate of the transistor T7 is the S3 signal.

[0098] It should be noted that the control circuit in the pixel circuit shown in FIG4 a can be regarded as a 7T1C circuit, and the control circuit in the pixel circuit shown in FIG5 b can be regarded as an 8T1C circuit.

[0099] In another possible implementation, Figure 6a is a schematic diagram of the structure of another pixel circuit provided in an embodiment of the present application. The pixel circuit shown in Figure 6a differs from the pixel circuit shown in Figure 4a in that the pixel circuit shown in Figure 6a lacks transistor T8, and the positions of transistor T6 and first LED 1034 are changed. Otherwise, the pixel circuit is the same as Figure 4a. As shown in Figure 6a, the anode of first LED 1034 is coupled to the second terminal of transistor T5, the cathode of first LED 1034 is coupled to the first terminal of transistor T6, and the second terminal of transistor T6 is coupled to the negative power supply voltage Vss.

[0100] It should be noted that when the pixel circuit shown in FIG6a operates in the narrow viewing angle mode or the wide viewing angle mode, the timing diagram of the S3 signal, the SP signal, the EM signal and the Vcon signal is shown in FIG4b and will not be described again here.

[0101] Compared to the pixel circuit shown in FIG4 a , the pixel circuit shown in FIG6 a has one less transistor, which helps reduce the volume of the pixel circuit and further increase the pixel density of the display panel, also known as pixel density unit (pixels per inch, PPI).

[0102] In another possible implementation, Figure 6b is a schematic diagram of the structure of another pixel circuit provided in an embodiment of the present application. The pixel circuit shown in Figure 6b differs from the pixel circuit shown in Figure 5a in that the pixel circuit shown in Figure 6b lacks transistor T8, and the positions of transistor T6 and first LED 1034 are changed. Otherwise, the pixel circuit is the same as Figure 4a. As shown in Figure 6b, the anode of first LED 1034 is coupled to the second terminal of transistor T5, the cathode of first LED 1034 is coupled to the first terminal of transistor T6, and the second terminal of transistor T6 is coupled to the negative power supply voltage Vss.

[0103] It should be noted that when the pixel circuit shown in FIG6b operates in the narrow viewing angle mode or the wide viewing angle mode, the timing diagram of the S3 signal, the SP signal, the EM signal and the Vcon signal is shown in FIG4b and will not be described again here.

[0104] Compared with the pixel circuit shown in FIG5 a , the pixel circuit shown in FIG6 b has one less transistor, which is beneficial for reducing the volume of the pixel circuit and thereby increasing the PPI of the display panel.

[0105] In another possible implementation, Figure 6c is a schematic diagram of the structure of another pixel circuit provided in an embodiment of the present application. The pixel circuit shown in Figure 6c differs from the pixel circuit shown in Figure 5b in that the pixel circuit shown in Figure 6c lacks transistor T8, and the positions of transistor T6 and first LED 1034 are changed. Otherwise, the pixel circuit is the same as Figure 4a. As shown in Figure 6c, the anode of first LED 1034 is coupled to the second terminal of transistor T5, the cathode of first LED 1034 is coupled to the first terminal of transistor T6, and the second terminal of transistor T6 is coupled to the negative power supply voltage Vss.

[0106] It should be noted that when the pixel circuit shown in FIG6c operates in the narrow viewing angle mode or the wide viewing angle mode, the timing diagram of the S3 signal, the SP signal, the EM signal and the Vcon signal is shown in FIG4b and will not be described again here.

[0107] Compared with the pixel circuit shown in FIG5 b , the pixel circuit shown in FIG6 c has one less transistor, which is beneficial for reducing the volume of the pixel circuit and thereby increasing the PPI of the display panel.

[0108] In another possible implementation, the first switch circuit 1032 includes a P-type transistor T8, the second switch circuit 1033 includes a P-type transistor T7, the third switch circuit 1037 includes a P-type transistor T5, the fourth switch circuit 1038 includes a P-type transistor T6, the fifth switch circuit 1039 includes a P-type transistor T4, the drive circuit 1036 includes a main drive tube Td, a P-type transistor T1, a P-type transistor T2 and a P-type transistor T3, the first LED 1034 is a wide-viewing angle LED, and the second LED 1035 is a narrow-viewing angle LED. For illustration, the following example is provided.

[0109] As shown in FIG7a , a first end of the capacitor C is coupled to the positive power supply voltage Vdd, a second end of the capacitor C is coupled to the gate of the main driving tube Td, a first end of the transistor T1, and a second end of the transistor T2, a first end of the transistor T2 is coupled to the third initial power supply terminal, and a third initial voltage Vinit3 is input to the third initial power supply terminal; a first end of the main driving tube Td and a first end of the transistor T3 are both coupled to the second end of the transistor T4, and a first end of the transistor T4 is coupled to the positive power supply voltage Vdd; a second end of the main driving tube Td and a second end of the transistor T1 are coupled to a first end of the transistor T5; a first end of the transistor T5 is coupled to a first end of the transistor T6, a second end of the transistor T5 and a second end of the transistor T6 are coupled to the anode of the first LED 1034 and the anode of the second LED 1035, respectively, and the anode of the first LED 1034 and the second LED 1035 are coupled to each other. The anode of 1035 is coupled to the second end of the transistor T8 and the first end of the transistor T7 respectively, the second end of the transistor T7 is coupled to the second initial power supply end, and the second initial power supply end inputs the second initial voltage Vinit2; the first end of the transistor T8 is coupled to the first initial power supply end, and the first initial power supply end inputs the first initial voltage Vinit1; the cathode of the first LED 1034 and the cathode of the second LED 1035 are coupled to the negative power supply voltage Vss.

[0110] Among them, the gate input signal of transistor T1 and the gate input signal of transistor T3 are both SP signals, the gate input signal of transistor T2, the gate input signal of transistor T7 and the gate input signal of transistor T8 are all S3 signals, the gate input signal of transistor T4 is EM signal, the gate input signal of transistor T5 is Vcon2 signal, and the gate input signal of transistor T6 is Vcon1 signal.

[0111] The timing sequence of the S3 signal, the SP signal, the EM signal, the Vcon1 signal, and the Vcon2 signal is shown in FIG7 b . In the reset phase, the S3 signal is at a low level, and the SP signal, the Vcon1 signal, the Vcon2 signal, and the EM signal are all at high levels. At this time, the first and second terminals of the transistor T2 are conductive to reset the gate of the main driving transistor Td. The first and second terminals of the transistor T7 are conductive to reset the anode of the second LED 1035. The first and second terminals of the transistor T8 are conductive to reset the anode of the first LED 1031.

[0112] During the data writing and compensation phase, the SP signal is at a low level, and the S3 signal, the Vcon1 signal, the Vcon2 signal, and the EM signal are all at a high level. At this time, the first and second terminals of the transistor T1 are conductive, and the first and second terminals of the transistor T3 are conductive. The data signal is charged to the gate of the main driving transistor Td through the transistor T3, the main driving transistor Td, and the transistor T1, thereby realizing data writing and Vth voltage compensation.

[0113] In the light-emitting stage, the EM signal is at a low level, the S3 signal and the SP signal are at a high level, the first end and the second end of the transistor T4 are turned on, and the positive power supply voltage Vdd passes through the transistor T4, the main driving tube Td, the transistor T5, the transistor T6, the LED (including the first LED 1034 and the second LED 1035) to form a current path to the negative power supply voltage Vss.

[0114] When the pixel circuit shown in FIG7a operates in the wide viewing angle mode, as shown in the left figure of FIG7b , in the light-emitting stage, the Vcon1 signal is at a low level, the Vcon2 signal is at a high level, the first LED emits light, and the second LED does not emit light; when the pixel circuit shown in FIG7a operates in the narrow viewing angle mode, as shown in the right figure of FIG7b , in the light-emitting stage, the Vcon1 signal is at a high level, the Vcon2 signal is at a low level, the first LED does not emit light, and the second LED emits light.

[0115] In another possible implementation, the first switch circuit 1032 includes a P-type transistor T8, the second switch circuit 1033 includes a P-type transistor T7, the third switch circuit 1037 includes a P-type transistor T5, the fourth switch circuit 1038 includes a P-type transistor T6, the fifth switch circuit 1039 includes a P-type transistor T4, the drive circuit 1036 includes a main drive tube Td, a P-type transistor T1, a P-type transistor T2 and a P-type transistor T3, the first LED 1034 is a wide-viewing angle LED, and the second LED 1035 is a narrow-viewing angle LED. For illustration, the following example is provided.

[0116] As shown in FIG7c , a first end of the capacitor C is coupled to the positive power supply voltage Vdd, a second end of the capacitor C is coupled to the gate of the main driving tube Td and the first end of the transistor T1, the first end of the main driving tube Td and the first end of the transistor T3 are both coupled to the second end of the transistor T4, and the first end of the transistor T4 is coupled to the positive power supply voltage Vdd; the second end of the main driving tube Td, the second end of the transistor T1 and the second end of the transistor T2 are coupled to the first end of the transistor T5; the first end of the transistor T2 is coupled to the third initial power supply terminal, and the third initial power supply terminal inputs the third initial voltage Vinit3; the first end of the transistor T5 is coupled to the first end of the transistor T6, the second end of the transistor T5 and the second end of the transistor T6 are coupled to the anode of the first LED 1034 and the anode of the second LED 1035, respectively, and the anode of the first LED 1034 and the second LED The anode of 1035 is coupled to the second end of the transistor T8 and the first end of the transistor T7 respectively, the second end of the transistor T7 is coupled to the second initial power supply end, and the second initial power supply end inputs the second initial voltage Vinit2; the first end of the transistor T8 is coupled to the first initial power supply end, and the first initial power supply end inputs the first initial voltage Vinit1; the cathode of the first LED 1034 and the cathode of the second LED 1035 are coupled to the negative power supply voltage Vss.

[0117] Among them, the gate input signal of transistor T1 and the gate input signal of transistor T3 are both SP signals, the gate input signal of transistor T2, the gate input signal of transistor T7 and the gate input signal of transistor T8 are all S3 signals, the gate input signal of transistor T4 is EM signal, the gate input signal of transistor T5 is Vcon2 signal, and the gate input signal of transistor T6 is Vcon1 signal.

[0118] It should be noted that when the pixel circuit shown in FIG7c operates in narrow or wide viewing angle mode, the timing diagram for the S3, EM, Vcon1, and Vcon2 signals is shown in FIG7b and will not be further described here. The difference from the timing diagram shown in FIG7b is that the SP signal is at a low level during the reset phase, and the first and second terminals of transistor T1 are conductive, thereby ensuring that the third initial voltage Vinit3 input from the third initial power supply terminal resets the gate of the main driver transistor Td through transistors T2 and T1. During the data writing and compensation phases and the light-emitting phase, the SP signal is the same as the SP signal in the corresponding phases of the timing diagram shown in FIG7b.

[0119] Compared with the pixel circuit shown in FIG. 7 a , the pixel circuit shown in FIG. 7 c reduces the possibility of gate leakage of the main driving tube Td, thereby facilitating the main driving tube Td to provide a stable luminous current for the first LED 1034 and the second LED 1035 .

[0120] Optionally, as shown in Figure 7d, based on the pixel circuit shown in Figure 7c, the driving circuit 1036 also includes a P-type transistor T9, the first end of the transistor T9 is coupled to the first end of the transistor T5, the second end of the transistor T9 is coupled to the fourth initial power supply end, the fourth initial power supply end inputs the fourth initial voltage Vinit4, and the input signal of the gate of the transistor T7 is the S3 signal.

[0121] It should be noted that the control circuit in the pixel circuit shown in FIG7 c can be regarded as a 7T1C circuit, and the control circuit in the pixel circuit shown in FIG7 d can be regarded as an 8T1C circuit.

[0122] In a feasible implementation, in the pixel circuits shown in Figures 7a, 7c, and 7d, the first initial power supply terminal and the second initial power supply terminal can be different ports or the same port, or the first initial power supply terminal and the third initial power supply terminal can be different ports or the same port. When the first initial power supply terminal and the second initial power supply terminal are the same port, or the first initial power supply terminal and the third initial power supply terminal are the same port, the signal lines of the pixel circuit can be reduced, thereby simplifying the circuit. Furthermore, in the pixel circuits shown in Figures 7a, 7c, and 7d, the anode of the first LED 1034 and the anode of the second LED 1035 can be reset by the same transistor. This method can reduce the number of transistors in the pixel circuit, reduce the volume of the pixel circuit, and thus improve the PPI of the display panel.

[0123] It should be noted that Figures 4a, 5a, 5b, 6a, 6b, 6c, 7a, 7c, and 7d illustrate how the pixel circuit implements switching between a narrow viewing angle mode and a wide viewing angle mode, using the example of a first LED 1034 being a wide-viewing angle LED and a second LED 1035 being a narrow-viewing angle LED. The first LED 1034 and the second LED 1035 can be LEDs with other functions. For example, if the wavelength of blue light emitted by the first LED 1034 is shorter than the wavelength of blue light emitted by the second LED 1035, the structures shown in Figures 4a, 5a, 5b, 6a, 6b, 6c, 7a, 7c, and 7d, under the control of the timing signals shown in Figure 4b or 7b, can implement switching between the eye protection mode and the non-eye protection mode. For another example, the luminous efficiency of the first LED 1034 is higher than the luminous efficiency of the second LED 1035. According to the structures shown in Figures 4a, 5a, 5b, 6a, 6b, 6c, 7a, 7c and 7d, under the control of the timing signal shown in Figure 4b or 7b, the luminous brightness of the pixel circuit can be switched.

[0124] It should be noted that when the LED in the pixel circuit 103 emits light and the pixel circuit 103 operates in different modes, the data signal input to the data signal terminal is different.

[0125] It should be noted that the display panel 10 shown in FIG1 includes a plurality of pixel circuits 103, wherein the structure of each pixel circuit can be the same as the structures shown in FIG4a, FIG5a, FIG5b, FIG6a, FIG6b, FIG6c, FIG7a, FIG7c, and FIG7d, or can be the same as the structures shown in FIG4a, FIG5a, FIG5b, FIG6a, FIG6b, FIG6c, FIG7a, FIG7c, and FIG7d. For example, the display panel 10 includes three pixel circuits, and the structures of the three pixel circuits are all the structures shown in FIG4a, or the structures of two pixel circuits are the structures shown in FIG4a, and the structure of one pixel circuit is the structure shown in FIG5a, or the structures of the three pixel circuits are the structures shown in FIG4a, the structures shown in FIG5a, and the structures shown in FIG5b, respectively.

[0126] It should be noted that in this application, the first terminal of a transistor can be a drain and the second terminal can be a source, or the first terminal of a TFT can be a source and the second terminal can be a drain. In cases where TFTs with opposite polarity are used or the direction of current changes during circuit operation, the functions of "source" and "drain" are sometimes interchangeable. Therefore, in this specification, "source" and "drain" can be interchanged.

[0127] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, characterized in that: The display panel includes a plurality of pixel circuits, each of which includes a control circuit, a first switch circuit, a second switch circuit, a first light emitting diode (LED), and a second LED. Wherein, a first terminal of the first switch circuit and a first terminal of the second switch circuit are coupled to a first initial power terminal and a second initial power terminal, respectively; a second terminal of the first switch circuit and a second terminal of the second switch circuit are coupled to an anode of the first LED and an anode of the second LED, respectively; an anode of the first LED and an anode of the second LED are coupled to a first terminal and a second terminal of the control circuit, respectively; a cathode of the first LED and a cathode of the second LED are coupled to a negative power supply voltage Vss; a third terminal of the control circuit is coupled to a positive power supply voltage Vdd; a fourth terminal of the control circuit is coupled to a data signal terminal, and a data signal is input to the data signal terminal; The control circuit is configured to provide the positive power supply voltage Vdd to the first LED and the second LED, and provide a light-emitting current to the first LED and the second LED based on the data signal; When the pixel circuit is in reset mode, the first switching circuit is turned on and the second switching circuit is turned on, the voltage at the anode of the first LED is the first initial voltage input to the first initial power supply terminal, and the voltage at the anode of the second LED is the second initial voltage input to the second initial power supply terminal, and the first initial voltage is different from the second initial voltage.

2. The display panel according to claim 1, wherein the control circuit comprises a third switch circuit, a fourth switch circuit and a drive circuit, wherein: A first terminal of the driving circuit is coupled to the positive power supply voltage Vdd, a second terminal of the driving circuit is coupled to a first terminal of the third switch circuit, a third terminal of the driving circuit is coupled to a data signal terminal of the control circuit, a first terminal of the fourth switch circuit is coupled to a second terminal of the third switch circuit, a second terminal of the fourth switch circuit and a second terminal of the third switch circuit are coupled to a first terminal and a second terminal of the control circuit, respectively. A main driving tube in the driving circuit is used to provide a light-emitting current to the first LED and the second LED based on the data signal; When the pixel circuit is in the first operating mode, the third switch circuit is turned on, the fourth switch circuit is turned off, the first LED does not emit light, and the second LED emits light; When the pixel circuit is in the second operating mode, the third switch circuit and the fourth switch circuit are both turned on, and the first LED and the second LED both emit light; When the pixel circuit is in the third operating mode, the third switch circuit is disconnected, and the first LED and the second LED do not emit light.

3. The display panel according to claim 1 , wherein the control circuit comprises a third switch circuit, a fourth switch circuit and a drive circuit, wherein: The first terminal of the driving circuit is coupled to the positive power supply voltage Vdd, the first terminal of the third switch circuit and the first terminal of the fourth switch circuit are both coupled to the second terminal of the driving circuit, the third terminal of the driving circuit is coupled to the data signal terminal of the control circuit, the second terminal of the third switch circuit and the second terminal of the fourth switch circuit are coupled to the second terminal and the first terminal of the control circuit respectively. A main driving tube in the driving circuit is used to provide a light-emitting current to the first LED and the second LED based on the data signal; When the pixel circuit is in the first operating mode, the third switch circuit is turned on and the fourth switch circuit is turned off, the first LED does not emit light, and the second LED emits light; When the pixel circuit is in the second operating mode, the third switch circuit is turned on and the fourth switch circuit is turned on, and both the first LED and the second LED emit light; When the pixel circuit is in the third operating mode, the third switch circuit and the fourth switch circuit are disconnected, and the first LED and the second LED do not emit light.

4. The display panel according to claim 2 or 3, wherein: The control circuit further includes a fifth switch circuit, and the first terminal of the drive circuit is coupled to the positive power supply voltage Vdd through the fifth switch circuit. When the pixel circuit is in the first operating mode or the second operating mode, the fifth switch circuit is turned on; when the pixel circuit is in the third operating mode, the fifth switch circuit is turned off.

5. The display panel according to any one of claims 2 to 4, characterized in that: The driving circuit includes a main driving tube, a first transistor, a second transistor, a third transistor and a capacitor. Wherein, the first end of the capacitor is coupled to the positive power supply voltage Vdd, the second end of the capacitor is coupled to the gate of the main driving tube, the second end of the first transistor and the first end of the third transistor, the first end of the first transistor is coupled to the third initial power supply terminal, the first end of the main driving tube and the first end of the second transistor are both coupled to the first end of the driving circuit, the second end of the second transistor is coupled to the third end of the driving circuit, and the second end of the main driving tube and the second end of the third transistor are coupled to the second end of the driving circuit.

6. The display panel according to any one of claims 2 to 5, characterized in that: The driving circuit includes a main driving tube, a first transistor, a second transistor, a third transistor and a capacitor. Wherein, the first end of the capacitor is coupled to the positive power supply voltage Vdd, the second end of the capacitor is coupled to the gate of the main driving tube and the first end of the third transistor, the first end of the main driving tube and the first end of the second transistor are both coupled to the first end of the driving circuit, the second end of the second transistor is coupled to the third end of the driving circuit, the second end of the main driving tube, the second end of the first transistor and the second end of the third transistor are coupled to the second end of the driving circuit, and the first end of the first transistor is coupled to the third initial power supply terminal.

7. The display panel according to claim 5 or 6, characterized in that: The voltage input to the third initial power terminal is the first initial voltage or the second initial voltage, or the third initial power terminal and the first initial power terminal are the same port, or the third initial power terminal and the second initial power terminal are the same port.

8. The display panel according to any one of claims 1 to 7, wherein: The light emitted by the first LED and the light emitted by the second LED are of the same color, and the wavelength of the light emitted by the first LED is different from the wavelength of the light emitted by the second LED, or, The luminous efficiency of the first LED is different from the luminous efficiency of the second LED, or, A light emitting angle of the first LED is different from a light emitting angle of the second LED.

9. An electronic device, characterized in that: The electronic device comprises the display panel according to any one of claims 1 to 8.

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