TWI741583B - Driving device and operation method thereof - Google Patents

Abstract

A driving device and an operation method thereof are provided. The driving device is configured to drive a self-emissive display panel (e.g. an organic light emitting diode (OLED) display panel). The self-emissive display panel is an In-cell touch panel. The driving device includes a driving circuit and a control circuit. The driving circuit is configured to drive a plurality of pixel circuits of the self-emissive display panel during a first sub-period of a frame period to display an image frame. The control circuit is configured to control the driving circuit to set the pixel circuits not to emit light during a second sub-period of the same frame period. The control circuit performs a touch detection operation on the self-emissive display panel during the same second sub-period.

Description

Driving device and operation method thereof

The present invention relates to a display device, and more particularly to a driving device and an operating method thereof.

In order to reduce the size of the display device, it is a product development trend that an organic light emitting diode (OLED) display panel can integrate the display function and the touch function. When performing a touch detection operation, how to make the touch detection operation not affect the visual effect of the OLED display panel (or other self-luminous display panels) is one of the technical issues in this field.

The present invention provides a driving device and an operation method thereof, so as not to affect the visual effect of the self-luminous display panel as much as possible when performing a touch detection operation on the self-luminous display panel.

In an embodiment of the present invention, the above-mentioned driving device is used to drive the self-luminous display panel. The self-luminous display panel is an in-cell touch panel. The driving device includes a driving circuit and a control circuit. The driving circuit is used for driving a plurality of pixel circuits of the self-luminous display panel in the first sub-period of the frame period to display the image frame. The control circuit is used for controlling the driving circuit so that the pixel circuits do not emit light in the second sub-period of the frame period. Wherein, the control circuit performs a touch detection operation on the self-luminous display panel in the second sub-period.

In an embodiment of the present invention, the above-mentioned operation method includes: driving a plurality of pixel circuits of a self-luminous display panel in a first sub-period of a frame period by a driving circuit to display an image frame; and controlling the driving by a control circuit A circuit to make these pixel circuits not emit light in the second sub-period of the frame period; and the control circuit performs a touch detection operation on the self-luminous display panel in the second sub-period.

Based on the above, the driving device and the operation method thereof according to the embodiments of the present invention divide a frame period into at least a first sub-period and a second sub-period. The driving device performs a display driving operation and a touch detection operation on the self-luminous display panel in the first sub-period and the second sub-period of the same frame period, respectively. The driving circuit makes the pixel circuits of the self-luminous display panel not emit light in the second sub-period, so as not to affect the visual effect of the self-luminous display panel as much as possible when performing a touch detection operation on the self-luminous display panel.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

The term "coupling (or connection)" used in the full text of the description of this case (including the scope of the patent application) can refer to any direct or indirect connection means. For example, if it is described in the text that the first device is coupled (or connected) to the second device, it should be interpreted as that the first device can be directly connected to the second device, or the first device can be connected through other devices or some This kind of connection means is indirectly connected to the second device. The terms "first" and "second" mentioned in the full text of the description of this case (including the scope of the patent application) are used to name the element (element), or to distinguish different embodiments or ranges, and are not used to limit the number of elements The upper or lower limit of is not used to limit the order of components. In addition, wherever possible, elements/components/steps with the same reference numbers in the drawings and embodiments represent the same or similar parts. Elements/components/steps that use the same reference numerals or use the same terms in different embodiments may refer to related descriptions.

FIG. 1 is a schematic diagram of a circuit block of a display device 100 according to an embodiment of the present invention. The display device 100 includes a self-luminous display panel 110 and a driving device. The self-luminous display panel 110 includes a pixel array 111 having a plurality of pixel circuits 112. The pixel array 111 has M horizontal lines (or horizontal display lines), and M horizontal lines mean M pixel circuit rows. Each of these pixel circuits 112 has a light-emitting element. Therefore, the self-luminous display panel 110 can display image frames without a backlight. For example, according to design requirements, the self-luminous display panel 110 may include an organic light emitting diode (OLED) display panel, a micro LED (micro LED) display panel, or other self-luminous displays. Panel (that is, a display panel that does not require a backlight). For example, the OLED display panel may be an active matrix OLED (AMOLED) display panel.

In the embodiment shown in FIG. 1, the driving device for driving the self-luminous display panel 110 includes a control circuit 120 and a driving circuit 130. In the embodiment shown in FIG. 1, the driving circuit 130 may be configured on the self-luminous display panel 110. For example, the driving circuit 130 may be a gate on array (GOA) circuit. According to design requirements, in other embodiments, the driving circuit 130 may also be configured on a flexible circuit board, a printed circuit board, or other positions. Based on the control of the control circuit 120, the driving circuit 130 can drive the pixel circuits 112 of the self-luminous display panel 110 to display image frames in the first sub-period (display driving period) of one frame period.

The control circuit 120 can provide a signal to the driving circuit 130 (or referred to as a GOA circuit) to control the driving circuit. For example, the control circuit 120 may provide a start pulse signal STP and clock signals (such as gate clock signals CLK1 to CLKn with different phases, initialization clock signals INT1 to INTn with different phases, and light-emitting clocks with different phases. Signal EMC1 to EMCn). According to the start pulse signal STP and the gate clock signals CLK1 to CLKn of the control circuit 120, the driving circuit 130 can generate a plurality of gate scan signals SCAN ₁ to SCAN _M for the self-luminous display panel 110. According to the start pulse signal STP and the initialization clock signals INT1 to INTn of the control circuit 120, the driving circuit 130 can generate a plurality of reset scan signals RST ₁ to RST _M for the self-luminous display panel 110. The startup control circuit 120 when the start pulse STP and the light emitting signal to the clock signal EMC1 EMCn, drive circuit 130 may be a self-emitting light emitting display panel 110 generate a plurality of scan signals to EM ₁ EM _M. The gate scanning signals SCAN ₁ to SCAN _M , the reset scanning signals RST ₁ to RST _M, and the light-emitting scanning signals EM ₁ to EM _M can be generated by the shift register circuit in the driving circuit 130. On the other hand, the control circuit 120 can provide the pixel array 111 of the self-luminous display panel 110 with data voltages corresponding to multiple output channels of the control circuit 120 (ie, pixel voltages, such as the data voltages Data1 to DataX). In addition, the control circuit 120 can also provide the system voltage VDD, the reference voltage VSS and the reset voltage Vreset to the self-luminous display panel 110.

FIG. 2 is a circuit diagram illustrating the pixel circuit 112 shown in FIG. 1 according to an embodiment. The pixel circuit 112 of FIG. 2 includes a switch M21, a switch M22, a switch M23, a switch M24, a switch M25, a switch M26, a transistor DRT1, a storage capacitor Cs, and a light emitting element EE (such as an OLED). The switch M21, the switch M22, the switch M23, the switch M24, the switch M25, the switch M26, and the transistor DRT1 may be p-channel type (p-type) thin film transistors (TFT).

Please refer to Figure 1 and Figure 2. The switch M21 and the switch M22 are controlled by the reset scan signal RST, and the reset scan signal RST can be one of the reset scan signals RST ₁ to RST _M. The switch M23 and the switch M24 are controlled by the gate scan signal SCAN, and the gate scan signal SCAN can be one of the gate scan signals SCAN ₁ to SCAN _M. The switch M25 and the switch M26 are controlled by the luminous scanning signal EM, and the luminous scanning signal EM can be one of the luminous scanning signals EM ₁ to EM _M. Based on the control of the reset scan signal RST, the gate scan signal SCAN and the light emission scan signal EM, the data voltage of the data line DataL (one of the data voltages Data1 to DataX) can be written into the storage capacitor Cs.

3 is a schematic diagram illustrating the signal timing of the self-luminous display panel 110 shown in FIG. 1 according to an embodiment of the present invention. One frame period F1 shown in FIG. 3 can be at least divided into a first sub-period SP1 and a second sub-period SP2. Based on the control of the control circuit 120, the driving circuit 130 can perform a display driving operation in the first sub-period SP1, that is, driving the pixel circuits 112 of the self-luminous display panel 110 to display image frames.

For the convenience of description, it is assumed here that the reset scan signal RST shown in FIG. 2 may be the reset scan signal RST ₁ shown in FIG. 3, and the gate scan signal SCAN shown in FIG. 2 may be the gate scan signal SCAN shown in FIG. _{1. The} luminous scanning signal EM shown in FIG. 2 may be the luminous scanning signal EM ₁ shown in FIG. 3. Figure 3 shows the reset scan signal RST ₂ ～RST _M , the gate scan signal SCAN ₂ ～SCAN _M and the luminous scan signal EM ₂ ～EM _M can refer to the reset scan signal RST ₁ , gate scan signal SCAN ₁ and luminous scan The description of the signal EM ₁ is analogized, so it will not be repeated.

Please refer to Figure 1, Figure 2 and Figure 3. The driving scheme of the pixel circuit 112 can be divided into three stages: a reset (initialization) stage, a data writing stage, and a light-emitting stage. During the period P1 (reset phase), the reset scan signal RST (for example, RST ₁ ) can turn on the switch M21 and the switch M22 of the pixel circuit 112, so as to transfer the reset voltage Vreset to the storage capacitor Cs and the light emitting element EE . The reset voltage Vreset may be a constant voltage. The reset voltage Vreset can turn on the transistor DRT1 through the switch M21. During the period P1, the switch M23, the switch M24, the switch M25, and the switch M26 are turned off. During the period P2 (data writing phase), the gate scan signal SCAN (such as SCAN ₁ ) can turn on the switch M23 and the switch M24 of the pixel circuit 112 (at this time, the switch M21, switch M22, switch M25, and switch M26 are off), so The data voltage of the data line DataL (one of the data voltages Data1 to DataX) can be stored in the storage capacitor Cs through the switch M24, the transistor DRT1, and the switch M23. During the period P3 (light-emitting phase), the light-emitting scan signal EM (for example, EM ₁ ) can turn on the switch M25 and the switch M26 of the pixel circuit 112 (at this time, the switch M21, the switch M22, the switch M23, and the switch M24 are turned off), so the switches M25, The transistor DRT1 and the switch M26 can provide a current path, and this current path can supply the driving current to the light emitting element EE. The data voltage stored in the storage capacitor Cs can control the transistor DRT1 to determine the drive current. The driving current passes through the light emitting element EE, so that the light emitting element EE can emit light with corresponding brightness (gray scale).

The self-luminous display panel 110 is an in-cell touch panel. The control circuit 120 may perform a touch detection operation on the self-luminous display panel 110 in the second sub-period SP2 of the frame period F1. For example, in the second sub-period SP2, the system voltage line of the pixel array 111 (the wire used to transmit the system voltage VDD, not shown in FIG. 1) can be used as a touch detection operation transmission (transmit , Generally referred to as TX) electrode, and the reference voltage line of the pixel array 111 (the wire used to transmit the reference voltage VSS, not shown in FIG. 1) can be used as a touch detection operation receiving (receive, generally referred to as RX) )electrode. In other embodiments, the system voltage lines of the pixel array 111 can be used as RX electrodes for touch detection operations, and the reference voltage lines of the pixel array 111 can be used as touch detection operations. TX electrode. During the touch detection operation, the control circuit 120 changes the voltage of the system voltage line and/or the reference voltage line of the pixel array 111.

Since the reaction speed of the light-emitting element EE (such as OLED) is very fast, when the voltages of the system voltage line and/or the reference voltage line of the pixel array 111 are changed, the brightness (gray scale) of the light emitted by the light-emitting element EE is ) Will change significantly. In order not to affect the visual effect of the self-luminous display panel 110 as much as possible when performing a touch detection operation on the self-luminous display panel 110, the driving circuit 130 may be used in the second sub-period SP2 (a period during which the touch detection operation is performed) All the pixel circuits 112 of the self-luminous display panel 110 are made not to emit light.

FIG. 4 is a schematic flowchart of an operating method of a display device according to an embodiment of the present invention. Please refer to Figure 1, Figure 3 and Figure 4. In the first sub-period SP1 of the frame period F1, the driving circuit 130 may drive the plurality of pixel circuits 112 of the self-luminous display panel 110 (step S410) to display an image frame. The control circuit 120 may control the driving circuit 130 to make all the pixel circuits 112 of the self-luminous display panel 110 not emit light in the second sub-period SP2 of the frame period F1 (step S420). The control circuit 120 performs the touch detection operation on the self-luminous display panel 110 in the second sub-period SP2 (step S430).

This embodiment does not limit the implementation manner of “making all the pixel circuits 112 of the self-luminous display panel 110 not emit light”. According to design requirements, in some embodiments, the control circuit 120 may control the driving circuit 130 to cut off the current path of the light emitting element EE in each of the pixel circuits 112 in the second sub-period SP2. For example, in the embodiment shown in FIG. 2, the driving circuit 130 may turn off the switch M26 to cut off the current path of the light emitting element EE. Alternatively, the control circuit 120 may control the driving circuit 130 to turn off all the switching elements in each of these pixel circuits 112 in the second sub-period SP2.

Therefore, the self-luminous display panel 110 displays one black frame in the second sub-period SP2. The duration of this black frame is extremely short, and it is not easy to be noticed by the viewer. After the second sub-period ends SP2, the control circuit 120 controls the driving circuit 130 to restore the light emission of the pixel circuits 112 of the self-luminous display panel 110, so that the self-luminous display panel 110 can resume displaying image frames.

The driving circuit makes the pixel circuits 112 of the self-luminous display panel 110 not emit light in the second sub-period SP2 (the period during which the touch detection operation is performed). After the second sub-period ends SP2, the pixel circuits 112 of the light-emitting display panel 110 resume to emit light, and the brightness (gray scale) of the pixel circuits 112 will not be changed due to the touch detection operation. Therefore, when the control circuit 120 performs a touch detection operation on the self-luminous display panel 110, the display device 100 may not affect the visual effect of the self-luminous display panel 110 as much as possible.

The present invention does not limit the implementation of these pixel circuits 112 of the light-emitting display panel 110. That is, the implementation of the pixel circuits 112 shown in FIG. 1 should not be limited to the embodiment shown in FIG. 2.

FIG. 5 is a circuit diagram illustrating the pixel circuit 112 shown in FIG. 1 according to another embodiment. The pixel circuit 112 of FIG. 5 includes a switch M51, a switch M52, a switch M53, a transistor DRT2, a storage capacitor Cs, a storage capacitor Cad, and a light-emitting element EE (such as an OLED). The switch M51, the switch M52, the switch M53, and the transistor DRT2 may be n-channel type (n-type) thin film transistors (TFT).

Please refer to Figure 1 and Figure 5. The switch M51 is controlled by the reset scan signal RST, and the reset scan signal RST can be one of the reset scan signals RST ₁ to RST _M. The switch M52 is controlled by the gate scan signal SCAN, and the gate scan signal SCAN can be one of the gate scan signals SCAN ₁ to SCAN _M. The switch M53 is controlled by the luminous scanning signal EM, and the luminous scanning signal EM can be one of the luminous scanning signals EM ₁ to EM _M. Based on the control of the reset scan signal RST, the gate scan signal SCAN and the light emission scan signal EM, the data voltage of the data line DataL (one of the data voltages Data1 to DataX) can be written into the storage capacitors Cs and Cad.

6 is a schematic diagram illustrating the signal timing of the self-luminous display panel 110 shown in FIG. 1 according to another embodiment of the present invention. One frame period F1 shown in FIG. 6 can be at least divided into a first sub-period SP1 and a second sub-period SP2. For the convenience of description, it is assumed here that the reset scan signal RST shown in FIG. 5 may be the reset scan signal RST ₁ shown in FIG. 6, and the gate scan signal SCAN shown in FIG. 5 may be the gate scan signal SCAN shown in FIG. 6 _{1. The} luminous scanning signal EM shown in FIG. 5 may be the luminous scanning signal EM ₁ shown in FIG. 6. Figure 6 shows the reset scan signal RST ₂ ～RST _M , the gate scan signal SCAN ₂ ～SCAN _M and the emission scan signal EM ₂ ～EM _M can refer to the reset scan signal RST ₁ , the gate scan signal SCAN ₁ and the emission scan The description of the signal EM ₁ is analogized, so it will not be repeated.

Please refer to Figure 1, Figure 5 and Figure 6. During the period P1 (reset phase), the reset scan signal RST (such as RST ₁ ) can turn on the switch M51 of the pixel circuit 112, and the gate scan signal SCAN (such as SCAN ₁ ) can turn on the switch M52 of the pixel circuit 112. Therefore, the reset voltage Vreset can be transferred to the storage capacitor Cs, the storage capacitor Cad, and the light emitting element EE. During the period P1, the switch M53 is turned off. During the period P2 (data writing phase), the gate scanning signal SCAN (for example, SCAN ₁ ) can turn on the switch M52 of the pixel circuit 112, and the light-emitting scanning signal EM (for example, EM ₁ ) can turn on the switch M53 of the pixel circuit 112. At this time, the switch M51 is turned off. Therefore, the data voltage of the data line DataL (one of the data voltages Data1 to DataX) can be stored in the storage capacitors Cs and Cad. During the period P3 (light-emitting phase), the light-emitting scan signal EM (such as EM ₁ ) can turn on the switch M53 of the pixel circuit 112 (at this time, the switch M51 and the switch M52 are off), so the switch M53 and the transistor DRT2 can provide a current path, The current path can supply driving current to the light emitting element EE. The data voltage stored in the storage capacitor Cs can control the transistor DRT2, thereby determining the driving current. The driving current passes through the light emitting element EE, so that the light emitting element EE can emit light with corresponding brightness (gray scale).

The control circuit 120 may perform a touch detection operation on the self-luminous display panel 110 in the second sub-period SP2 of the frame period F1. For example, in the second sub-period SP2, the system voltage lines of the pixel array 111 (the wires used to transmit the system voltage VDD, not shown in FIG. 1) can be used as TX electrodes for touch detection operations. The reference voltage lines of the pixel array 111 (wires for transmitting the reference voltage VSS, not shown in FIG. 1) can be used as RX electrodes for touch detection operations. In other embodiments, the system voltage lines of the pixel array 111 can be used as RX electrodes for touch detection operations, and the reference voltage lines of the pixel array 111 can be used as touch detection operations TX electrode. During the touch detection operation, the control circuit 120 changes the voltage of the system voltage line and/or the reference voltage line of the pixel array 111.

The embodiment shown in FIG. 5 and FIG. 6 can also be applied to the related description of FIG. 4. The control circuit 120 may control the driving circuit 130 to make all the pixel circuits 112 of the self-luminous display panel 110 not emit light in the second sub-period SP2 of the frame period F1. The control circuit 120 performs the touch detection operation on the self-luminous display panel 110 in the second sub-period SP2.

According to different design requirements, the blocks of the control circuit 120 and/or the drive circuit 130 can be implemented in hardware, firmware, software, or any of the foregoing three. The combination of multiple forms.

In terms of hardware, the blocks of the control circuit 120 and/or the drive circuit 130 described above can be implemented in a logic circuit on an integrated circuit. The related functions of the control circuit 120 and/or the driving circuit 130 described above can be implemented as hardware using hardware description languages (for example, Verilog HDL or VHDL) or other suitable programming languages. For example, the related functions of the control circuit 120 and/or the driving circuit 130 may be implemented in one or more controllers, microcontrollers, microprocessors, and application-specific integrated circuits (Application-specific integrated circuits, ASIC), digital signal processor (DSP), Field Programmable Gate Array (FPGA) and/or various logic blocks, modules and circuits in other processing units.

In terms of software and/or firmware, the related functions of the control circuit 120 and/or the driving circuit 130 can be implemented as programming codes. For example, general programming languages (such as C, C++, or assembly languages) or other suitable programming languages are used to implement the control circuit 120 and/or the driving circuit 130. The programming code may be recorded/stored in a recording medium, which includes, for example, a read-only memory (Read Only Memory, ROM), a storage device, and/or a random access memory (Random Access Memory, RAM). . A computer, a central processing unit (CPU), a controller, a microcontroller, or a microprocessor can read and execute the programming code from the recording medium, so as to achieve related functions. As the recording medium, a "non-transitory computer readable medium" can be used. For example, tape, disk, card, semiconductor memory, and non-transitory computer readable medium can be used. Programming logic circuits, etc. Furthermore, the program may also be provided to the computer (or CPU) via any transmission medium (communication network or broadcast wave, etc.). The communication network is, for example, the Internet, wired communication, wireless communication, or other communication media.

In summary, the driving devices and operating methods described in the foregoing embodiments can divide one frame period F1 into at least the first sub-period SP1 and the second sub-period SP2. The driving device performs a display driving operation and a touch detection operation on the self-luminous display panel 110 in the first sub-period SP1 and the second sub-period SP2 of the same frame period F1, respectively. Among them, the driving circuit 130 makes the pixel circuits 112 of the self-luminous display panel 110 not emit light in the second sub-period SP2. Therefore, when the control circuit 120 performs a touch detection operation on the self-luminous display panel 110, the display device 100 may not affect the visual effect of the self-luminous display panel 110 as much as possible.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be subject to those defined by the attached patent application scope.

100: Display device 110: Self-luminous display panel 110: Self-luminous display panel 111: Pixel array 112: Pixel circuit 120: Control circuit 130: Drive circuit CLK1～CLKn: Gate clock signal Cs, Cad: Storage capacitor Data1～DataX : Data voltage DataL: Data line DRT1, DRT2: Transistor EE: Light-emitting element EMC1～EMCn: Luminous clock signal EM, EM ₁ , EM ₂ , EM _M : Luminous scanning signal F1: Frame period INT1～INTn: Initialization clock Signal M21, M22, M23, M24, M25, M26, M51, M52, M53: switch P1, P2, P3: period RST, RST ₁ , RST ₂ , RST _M : reset scan signal S410, S420, S430: step SCAN , SCAN ₁ , SCAN ₂ , SCAN _M : Gate scan signal SP1: First sub-period SP2: Second sub-period STP: Start pulse signal VDD: System voltage Vreset: Reset voltage VSS: Reference voltage

FIG. 1 is a schematic diagram of a circuit block of a display device according to an embodiment of the present invention. FIG. 2 is a circuit diagram illustrating the pixel circuit shown in FIG. 1 according to an embodiment. 3 is a schematic diagram illustrating the signal timing of the self-luminous display panel shown in FIG. 1 according to an embodiment of the present invention. FIG. 4 is a schematic flowchart of an operating method of a display device according to an embodiment of the present invention. FIG. 5 is a circuit diagram illustrating the pixel circuit shown in FIG. 1 according to another embodiment. 6 is a schematic diagram illustrating the signal timing of the self-luminous display panel shown in FIG. 1 according to another embodiment of the present invention.

S410, S420, S430: steps

Claims (10)

A driving device for driving a self-luminous display panel, the self-luminous display panel is an in-cell touch panel, and the driving device includes: a driving circuit for a first sub-period of a frame period Driving a plurality of pixel circuits of the self-luminous display panel to display an image frame; and a control circuit for controlling the driving circuit so that the pixel circuits do not emit light in a second sub-period of the frame period, and After the second sub-period ends, the pixel circuits are restored to emit light, wherein the control circuit performs a touch detection operation on the self-luminous display panel in the second sub-period. The driving device according to claim 1, wherein the self-luminous display panel displays a black frame in the second sub-period, and the self-luminous display panel resumes displaying the image frame after the second sub-period ends. The driving device according to claim 1, wherein the control circuit controls the driving circuit to cut off a current path of a light-emitting element in each of the pixel circuits in the second sub-period. The driving device according to claim 1, wherein the control circuit controls the driving circuit to turn off all the switching elements in each of the pixel circuits in the second sub-period. The driving device according to claim 1, wherein the self-luminous display panel includes an organic light-emitting diode display panel or a micro-light-emitting diode display panel. An operation method of a driving device, the driving device is used to drive a self-luminous display panel, the self-luminous display panel is an in-cell touch panel, and the operation method includes: a driving circuit in a first frame period A plurality of pixel circuits of the self-luminous display panel are driven in a sub-period to display an image frame; the driving circuit is controlled by a control circuit so that the pixel circuits do not emit light in a second sub-period of the frame period , And after the second sub-period ends, the pixel circuits are restored to emit light; and the control circuit performs a touch detection operation on the self-luminous display panel in the second sub-period. The operation method according to claim 6, further comprising: displaying a black frame by the self-luminous display panel in the second sub-period, and resuming the display of the image by the self-luminous display panel after the second sub-period ends frame. The operation method according to claim 6, further comprising: controlling the driving circuit by the control circuit to cut off a current path of a light-emitting element in each of the pixel circuits in the second sub-period. The operation method according to claim 6, further comprising: controlling the driving circuit by the control circuit to turn off all the switching elements in each of the pixel circuits in the second sub-period. The operation method according to claim 6, wherein the self-luminous display panel includes an organic light-emitting diode display panel or a micro-light-emitting diode display panel.

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