Compensation processing method and device

Abstract

The invention relates to a compensation processing method and device. The method comprises the following steps: acquiring at least one target area in a picture area of the display panel, acquiring first signal information corresponding to each target pixel circuit in each target area, detecting whether each first signal information meets a preset compensation ending condition or not, and if yes, determining that the first signal information does not meet the preset compensation ending condition; if yes, the current input signals of the pixel circuits are determined as target compensation signals of the pixel circuits, the first signal information is determined based on the current input signals of the pixel circuits in the display panel, the sum of the sizes of the target areas is smaller than or equal to the size of the picture area, and the different target areas are not overlapped. By adopting the method, whether compensation processing reaches the standard or not can be verified through the detection process, so that the accuracy of the compensation processing result is improved, the compensation effect is improved, and the compensation requirement is met.

Description

Technical Field

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

[0002] With the development of technology, display panels are widely used in electronic devices such as mobile phones, tablet computers, and information inquiry machines in public halls.

[0003] Taking an active-matrix organic light-emitting diode (AMOLED) display panel as an example, each pixel circuit in the AMOLED display panel includes an AMOLED, a driving transistor and a capacitor, and the AMOLED display panel mainly drives the AMOLED to emit light through the driving transistor and the capacitor in each pixel circuit. In practical applications, in order to improve the display uniformity of the display panel, it is necessary to compensate the voltage threshold of the driving transistor in each pixel circuit.

[0004] However, in the related art, when compensating the voltage threshold of each driving transistor, there is a problem that the compensation processing result cannot meet the compensation requirement. Summary of the invention

[0005] Based on this, it is necessary to provide a compensation processing method and device for the above technical problems, which can improve the compensation effect of the voltage threshold of the driving transistor in each pixel circuit to meet the compensation requirements.

[0006] In a first aspect, an embodiment of the present application provides a compensation processing method, the method comprising:

[0007] Acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, and the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap;

[0008] Detecting whether each first signal information satisfies a preset compensation end condition;

[0009] If so, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0010] In one embodiment, if there is only one target area, detecting whether each first signal information satisfies a preset compensation end condition includes:

[0011] Obtaining first difference values ​​between pairs of first signal information in each piece of first signal information;

[0012] If each first difference value is less than or equal to the first difference value threshold, it is determined that each first signal information satisfies the compensation end condition; otherwise, it is determined that each first signal information does not satisfy the compensation end condition.

[0013] In one embodiment, the first signal information includes a driving current, and the first difference value includes a driving current difference value.

[0014] In one embodiment, the first difference value threshold is 0.

[0015] In one embodiment, if there is only one target area, detecting whether each first signal information satisfies a preset compensation end condition includes:

[0016] If each piece of first signal information is within the preset first signal information range, it is determined that each piece of first signal information meets the compensation end condition; otherwise, it is determined that each piece of first signal information does not meet the compensation end condition.

[0017] In one embodiment, if there are multiple target areas, detecting whether each first signal information satisfies a preset compensation end condition includes:

[0018] Acquire a second difference value between first signal information corresponding to any two target pixel circuits in each target area;

[0019] If each second difference value is less than or equal to the second difference value threshold, obtaining statistical signal information corresponding to each target area according to each first signal information;

[0020] If the third difference value between any two statistical signal information is less than or equal to the third difference value threshold, it is determined that each first signal information meets the compensation end condition.

[0021] Optionally, the above method further includes:

[0022] If at least one second difference value is greater than or equal to the second difference value threshold, it is determined that each first signal information does not meet the compensation end condition.

[0023] In one embodiment, the method further comprises:

[0024] If the third difference value between any two statistical signal information is greater than or equal to the third difference value threshold, it is determined that each first signal information does not meet the compensation end condition.

[0025] In one of the embodiments, the second difference value threshold is 0;

[0026] In one embodiment, the third difference value threshold is 0.

[0027] In one embodiment, after detecting whether each first signal information satisfies a preset compensation end condition, the method further includes:

[0028] When each first signal information does not meet the compensation end condition, compensation processing is performed on the voltage threshold of the driving transistor in each pixel circuit according to each first signal information to obtain second signal information of each target pixel circuit; each second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after the compensation processing;

[0029] When each second signal information satisfies the compensation end condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0030] In one embodiment, according to each first signal information, a voltage threshold of a driving transistor in each pixel circuit in a display panel is compensated to obtain second signal information of each target pixel circuit, including:

[0031] Determining compensation parameters corresponding to each pixel circuit according to each first signal information;

[0032] Determine a candidate compensation signal for each pixel circuit according to each compensation parameter and an original compensation signal for each pixel circuit;

[0033] The second signal information of each target pixel circuit is determined according to the candidate compensation signal of each pixel circuit.

[0034] In one embodiment, determining the compensation parameter corresponding to each pixel circuit according to each first signal information includes:

[0035] The signal information matching each first signal information is searched in the pre-constructed information table, and the compensation parameters corresponding to each matched signal information are determined as the compensation parameters corresponding to each pixel circuit; the information table includes the correspondence between different signal information and different compensation parameters.

[0036] In one embodiment, the current input signal of each pixel circuit is determined according to the original input signal of each pixel circuit before compensation processing.

[0037] In one embodiment, the method further comprises:

[0038] When each candidate compensation signal is determined, the size of each target area is increased to obtain a corresponding adjustment area;

[0039] Acquire third signal information corresponding to each adjustment pixel circuit in each adjustment area;

[0040] Detecting whether each third signal information satisfies a compensation end condition;

[0041] If the conditions are met, the compensation process is terminated; otherwise, the size of each adjustment area is continuously increased until the signal information corresponding to each adjustment pixel circuit meets the compensation termination condition.

[0042] In a second aspect, an embodiment of the present application provides a display method, which is applied to a display panel, wherein the display panel includes a plurality of pixel circuits, and the method includes:

[0043] A corresponding display screen is output according to the target compensation signal input to each pixel circuit; the target compensation signal of each pixel circuit is determined according to the steps of the method in any embodiment of the first aspect.

[0044] In a third aspect, an embodiment of the present application provides a compensation processing device, the device comprising:

[0045] an acquisition module, configured to acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, a sum of sizes of each target area is less than or equal to a size of the picture area, and different target areas do not overlap;

[0046] A detection module, used to detect whether each first signal information satisfies a preset compensation end condition;

[0047] The first determination module is used to determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit when the end of the detection module is yes.

[0048] In a fourth aspect, an embodiment of the present application further provides a display device, the device comprising:

[0049] The picture output module is used to output the corresponding display picture according to the target compensation signal of each pixel circuit input; the target compensation signal of each pixel circuit is determined according to the steps of the method in any embodiment of the first aspect.

[0050] In a fifth aspect, an embodiment of the present application further provides a computer device, comprising a processing chip, a memory and a processor, wherein the memory stores a computer program, and when the processing chip executes the computer program, the steps of the method of any one of the embodiments in the first aspect are implemented.

[0051] In a sixth aspect, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processing chip, the steps of the method of any embodiment in the above-mentioned first aspect are implemented.

[0052] In a seventh aspect, an embodiment of the present application further provides a computer program product, the computer program product comprising a computer program, which implements the steps of the method of any embodiment in the above-mentioned first aspect when executed by a processing chip.

[0053] The above-mentioned compensation processing method and device include: obtaining at least one target area in the picture area of ​​the display panel, and obtaining the first signal information corresponding to each target pixel circuit in each target area, detecting whether each first signal information meets the preset compensation end condition, and if so, determining the current input signal of each pixel circuit as the target compensation signal of each pixel circuit, each first signal information is determined based on the current input signal of each pixel circuit in the display panel, the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap. By adopting the above method, the first signal information corresponding to each target pixel circuit in at least one target area in the picture area of ​​the display panel can be used to detect whether each first signal information meets the compensation end condition. The process does not need to implement compensation processing through the complete picture area of ​​the display panel, and can only implement compensation processing on the voltage threshold of the driving transistor in each pixel circuit in the display panel through a part of the picture area of ​​the display panel, thereby improving the picture uniformity of the display panel, that is, improving the display effect of the output picture of the display panel, and reducing the amount of data required to be processed in the compensation processing process, thereby improving the speed and efficiency of the compensation processing, and also reducing the complexity of the compensation processing and improving the accuracy of the compensation processing; at the same time, the above method has no restrictions on the size of the display panel, thereby increasing the use scenarios of the compensation processing; furthermore, the above method does not require manual participation in the processing, which can not only improve the speed of the compensation processing, but also reduce the compensation processing error, and can greatly improve the accuracy of the compensation processing; in addition, the above method can verify whether the compensation processing meets the standards through the detection process, so as to improve the accuracy of the compensation processing results and the compensation effect, so as to meet the compensation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a circuit structure diagram of a pixel circuit and a detection circuit in one embodiment;

[0055] Figure 2 A schematic diagram of a compensation processing method in one embodiment;

[0056] Figure 3 is an output signal and / or a waveform diagram of an output signal of different functional circuits in a pixel circuit in one embodiment;

[0057] Figure 4 is a schematic flow chart of a compensation processing method in another embodiment;

[0058] Figure 5is a schematic flow chart of a compensation processing method in another embodiment;

[0059] Figure 6 A diagram showing five pixel block areas in a display panel in one embodiment;

[0060] Figure 7 is a schematic flow chart of a compensation processing method in another embodiment;

[0061] Figure 8 is a schematic flow chart of a compensation processing method in another embodiment;

[0062] Fig. 9 is a schematic flow chart of a compensation processing method in another embodiment;

[0063] Fig.10 is a structural block diagram of a compensation processing device in an embodiment;

[0064] Fig.11 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0066] In the field of display panels, each pixel circuit in the display panel includes a light-emitting diode, a driving transistor and a capacitor. Since the voltage threshold Vth of different driving transistors in each pixel circuit may be different due to the manufacturing process, and the voltage threshold Vth of the driving transistor may drift due to the unstable performance of the driving transistor, such as negative drift or positive drift, the offset degree of the voltage threshold of the driving transistor in the pixel circuits at different positions on the display panel may be different, which may cause the display screen of the display panel to be uneven, that is, the uniformity effect of the display screen is poor. In order to improve the uniformity problem of the display screen, in the related art, the voltage threshold of the driving transistor in each pixel circuit is mainly compensated to eliminate the influence of the voltage threshold of each driving transistor on the driving current of each driving transistor. However, there is a problem of low compensation efficiency of the voltage threshold of each driving transistor in the related art. Based on this, the embodiment of the present application provides a compensation processing method, which can improve the compensation efficiency of the voltage threshold of the driving transistor in each pixel circuit.

[0067] The compensation processing method provided in the embodiment of the present application can be applied to a compensation processing system. In one scenario, the compensation processing system may include a processing chip and a display panel, and the processing chip and the display panel are connected for communication, and the communication method may be a parallel bus communication, a serial bus communication, etc. Among them, the processing chip may be a chip built into a computer device, or may be an independent chip, but is not limited to a field programmable gate array (Field Programmable Gate Array, FPGA) chip or a timing controller (Timing Controller, TCON) chip; the display panel includes a plurality of pixel circuits and at least one detection circuit, each detection circuit may be connected to at least one pixel circuit, the structure of each pixel circuit may be the same or different, and the structure of each detection circuit may also be the same or different.

[0068] In practical applications, the compensation method for the voltage threshold of the driving transistor may include internal compensation and external compensation. Since the external compensation scheme has the advantages of simple pixel circuit and small unit pixel circuit area in high pixel density unit display applications, the embodiment of the present application adopts an external compensation method to implement compensation processing, that is, adding an external detection circuit to the pixel circuit.

[0069] In another scenario, the compensation processing system may include a processing chip, a display panel, and at least one detection circuit. Optionally, the display panel includes a plurality of pixel circuits, and each detection circuit may be connected to at least one pixel circuit. In practical applications, the detection circuit is used to detect the driving current Id of the driving transistor in the pixel circuit connected thereto in the detection mode during the detection period, that is, the working current of the driving transistor in the pixel circuit; the driving current Id may flow from the source to the drain of the driving transistor, or from the drain to the source of the driving transistor.

[0070] In an embodiment of the present application, each pixel circuit may be a 3T1C pixel circuit. Each of the above pixel circuits includes a driving transistor TR1, two switching transistors (TR2 and TR3), an organic light emitting diode OLED and a storage capacitor CST. It should be noted here that the driving mode of each pixel circuit may be to control the brightness (pixel value) of the pixel through the driving transistor TR1, two switching transistors (TR2 and TR3) and the storage capacitor CST. The above light emitting diode may be a micro light emitting diode, an organic light emitting diode and a polymer light emitting diode, etc. At the same time, the above TR1, TR2 and TR3 may be, but are not limited to, an N-type transistor TFT. Optionally, the above driving transistor TR1 mainly plays a driving role in the pixel circuit, and may provide a driving current for the pixel electrode of the cathode or anode of the organic light emitting diode OLED.

[0071] like Figure 1 As shown, it is a circuit structure diagram of the above-mentioned pixel circuit, the gate of the switching transistor TR2 in the pixel circuit is connected to the scanning signal SCAN1, the first electrode of the switching transistor TR2 is connected to the data line (wherein, the data driving circuit can transmit the data signal Vdata to the pixel circuit through the data line), the second electrode of the switching transistor TR2, the gate of the driving transistor TR1 and one end of the storage capacitor CST are all connected to the node G, the source of the driving transistor TR1, the other end of the storage capacitor CST, the first electrode of the switching transistor TR3 and the positive terminal of the organic light emitting diode OLED are all connected to the node S, the drain D of the driving transistor TR1 is connected to the high voltage terminal ELVDD, the negative terminal of the organic light emitting diode OLED is connected to the low voltage terminal ELVSS (such as ground), the gate of the switching transistor TR3 is connected to the scanning signal SCAN2, and the second electrode of the switching transistor TR3 is connected to the detection circuit.

[0072] It should be noted that the scan signal SCAN1 and the scan signal SCAN2 are used to control the conduction state of the switch transistor TR2 and the switch transistor TR3 respectively, and the data signal Vdata is used to write the drive transistor TR1. The scan signal SCAN1 and the scan signal SCAN2 can be provided by the same scan drive circuit or different scan drive circuits.

[0073] At the same time, each of the above detection circuits includes a detection line (Sensing Line), a reset switch, an amplifier, a capacitor C and a control switch. Figure 1 As shown, in the detection circuit connected to the pixel circuit, the reset switch is connected in parallel with the capacitor C, one end of the reset switch, one end of the capacitor C and the reverse input end of the amplifier are all connected to the same node (and connected to the detection line), the other end of the reset switch, the other end of the capacitor C, the output end of the amplifier and one end of the control switch are connected to the same node, and the non-inverting input end of the amplifier is connected to the reference voltage VREF. Among them, the detection line is electrically connected to the second electrode of the switch transistor TR3.

[0074] In practical applications, after the pixel circuit enters the detection mode, it can be divided into three time periods, namely, an initial period T1, a detection period T2 and a calculation period T3.

[0075] Among them, in the initial period T1, after the scanning signal SCAN1 is written into the gate of the switching transistor TR2, the scanning signal SCAN2 is written into the gate of the switching transistor TR3, the data signal Vdata is written into the gate of the driving transistor TR1, and the voltage signal VREF is written into the source of the driving transistor TR1 through the switching transistor TR3, at this time, the source of the driving transistor TR1 is set to the on state, and the source of the driving transistor TR1 is equal to the potential on the detection line in the detection circuit, that is, VREF. During this period, when the amplifier is not required to work, the reset switch can be controlled to be closed to short-circuit the reverse input terminal and the output terminal of the amplifier so that their electrical positions are VREF; if the amplifier is required to work, the reset switch can be controlled to be opened to conduct the reverse input terminal and the output terminal of the amplifier.

[0076] In the detection period T2, the potential of the source S of the driving transistor TR1 remains unchanged, and the voltage difference Vgs between the gate and the source of the driving transistor TR1 remains unchanged. According to the characteristics of the driving transistor TR1, the current flowing through the drain of the driving transistor TR1 also remains stable. During this period, the charge output by the amplifier flows through the driving transistor TR1. As time goes by, the amplifier accumulates the input charge, so the output voltage Vout of the amplifier changes linearly with time. When the control terminal SMP of the control switch triggers the falling edge, the output voltage Vout of the amplifier is obtained by sampling.

[0077] In the calculation period T3, according to the output voltage Vout, the capacitance C of the capacitor and the duration t corresponding to the detection period T2, the formula Q=I*t=C*Vout (where Q represents the amount of charge, I represents the driving current Id of the driving transistor TR1, t represents the duration t corresponding to the detection period T2, C represents the capacitance value of the capacitor, and Vout represents the output voltage accumulated by the amplifier in the detection period T2) is used to calculate the driving current Id of the driving transistor TR1.

[0078] In practical applications, the accuracy of the detected charge amount can be improved by adjusting the amplifier in the detection circuit (ie, designing the amplifier to be an amplifier of a target model), so that the calculated driving current Id of the driving transistor TR1 is more accurate.

[0079] The following embodiments will specifically introduce the specific process of the compensation processing method, and will introduce the specific process of the compensation processing method by taking the execution subject as the processing chip. Figure 2 FIG. 1 is a flow chart of a compensation processing method provided in an embodiment of the present application, and the method may include the following steps:

[0080] S100, obtaining at least one target area in the picture area of ​​the display panel, and obtaining first signal information corresponding to each target pixel circuit in each target area. Wherein, each first signal information is determined based on the current input signal of each pixel circuit in the display panel; the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap.

[0081] It should be noted here that the picture area corresponding to the entire display panel may include at least one target area, the size of each target area is smaller than the size of the picture area of ​​the display panel, and the sizes of different target areas may be equal or unequal. At the same time, the sum of the sizes of different target areas may be smaller than the size of the picture area of ​​the display panel, that is, the sum of the side lengths of different target areas in the same direction may be less than or equal to the side length of the picture area of ​​the display panel in the same direction. In addition, the sum of the areas of different target areas may also be less than or equal to the area of ​​the picture area of ​​the display panel. In an embodiment of the present application, the size of the above-mentioned display panel may be small, medium or large, and this embodiment of the present application is not limited to this.

[0082] Specifically, the processing chip may divide the picture area of ​​the display panel to obtain a plurality of divided areas, and then randomly select at least one divided area from the plurality of divided areas as the corresponding target area.

[0083] In one embodiment, the screen area of ​​the display panel may be divided into a preset number of divided areas according to the size of the screen area, or may be divided into a plurality of divided areas according to preset area sizes.

[0084] In another embodiment, the screen area of ​​the display panel may be divided by dividing the screen area from a boundary point or a midpoint of the screen area as a starting point.

[0085] At the same time, the processing chip can obtain the first signal information corresponding to each target pixel circuit in each target area. In the embodiment of the present application, each pixel circuit in the target area can be referred to as a target pixel circuit. At the same time, the first signal information corresponding to the above target pixel circuit can be voltage signal information. In the embodiment of the present application, the above first signal information can be the first drive current Id1 of the drive transistor TR1 in the target pixel circuit.

[0086] In one implementation, the processing chip may obtain the first driving current Id1 of the driving transistor TR1 in each target pixel circuit in the target area of ​​the display panel from a local location, a cloud location, a disk or a hard disk.

[0087] In another implementation, for any target pixel circuit, the processing chip can also obtain the output voltage Vout of the detection circuit connected to the target pixel circuit during the detection period T2 when the target pixel circuit enters the detection mode, and calculate the first driving current Id1 of the driving transistor TR1 in the target pixel circuit according to the output voltage Vout, the capacitance C of the capacitor in the detection circuit and the duration t corresponding to the detection period T2 using the formula Q=I*t=C*Vout.

[0088] In one embodiment, the current input signal of each pixel circuit is determined according to the original input signal of each pixel circuit before compensation processing.

[0089] S200: Detect whether each first signal information satisfies a preset compensation end condition.

[0090] The preset compensation end condition may include a corresponding condition satisfied by the driving current Id of the driving transistor TR1 in some pixel circuits or all pixel circuits when the uniformity of the output image of the display panel is high. At the same time, each initial compensation signal satisfies the preset compensation end condition, which can indicate that the uniformity of the output image of the display panel has reached a high effect, that is, the pixel information of each pixel point on the output image of the display panel will remain consistent with the change of time. Optionally, the pixel information may be a brightness value or a grayscale value.

[0091] Furthermore, based on the first signal information corresponding to each target pixel circuit obtained in the previous steps, the processing chip can perform arithmetic operations and comparison operations on the first signal information corresponding to each target pixel circuit, and determine whether each first signal information meets the compensation end condition according to the processing results.

[0092] Optionally, the arithmetic operation may include at least one of addition, subtraction, multiplication and division, etc. The processing result may be a result of arithmetic operation and comparison operation.

[0093] In one embodiment, an algorithm model may be pre-trained, and the first signal information and compensation end condition of each target pixel circuit may be input into the algorithm model, and the algorithm model outputs the result of whether each first signal information satisfies the compensation end condition.

[0094] Among them, since the pixel information of any pixel point in the picture output by the display panel may include the information of three sub-pixels of red, green and blue, in order to improve the accuracy of the compensation effect, each pixel point in the display panel may correspond to three sub-pixel circuits (a first sub-pixel circuit, a second sub-pixel circuit and a third sub-pixel circuit), the first sub-pixel circuit may be a pixel circuit corresponding to the red channel of the pixel point, the second sub-pixel circuit may be a pixel circuit corresponding to the green channel of the pixel point, and the third sub-pixel circuit may be a sub-pixel circuit corresponding to the blue channel of the pixel point. Among them, at least one sub-pixel circuit is connected to a detection circuit, and the structure of each sub-pixel circuit is the same as the structure of the above-mentioned pixel circuit.

[0095] Taking the first signal information being the first driving current Id1 of the driving transistor TR1 in the target pixel circuit as an example, for each pixel point, the detection circuit connected to the first sub-pixel circuit, the second sub-pixel circuit and the third sub-pixel circuit can be used to respectively detect the output voltage Vout of the detection circuit connected to the pixel point within the detection period T2 under three different channels. Based on this, the first driving current Id1 of the driving transistor TR1 in each sub-pixel circuit under the three different channels of the pixel point can be calculated in combination with the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0096] It should be noted here that after the different sub-pixel circuits corresponding to the pixel points under the three different channels enter the detection mode, when the input signal of the first sub-pixel circuit is set to the on signal within the detection period T2, the input signals of the second sub-pixel circuit and the third sub-pixel circuit can be set to the off signal. In this scenario, the detection circuit connected to the first sub-pixel circuit can detect the output voltage Vout1 of the detection circuit connected to it within the detection period T2 under the red channel. Based on this, the driving current Id11 of the driving transistor TR1 in the first sub-pixel circuit under the red channel of the pixel point can be calculated in combination with the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0097] It should be noted here that, for any pixel circuit, the original compensation signal input to the pixel circuit is different, and correspondingly, the first driving current Id1 of the driving transistor TR1 in the pixel circuit will also be different, and the two are one-to-one corresponding.

[0098] For example, Figure 3The figure shows the waveforms of the scanning signal SCAN1 written into the gate of the switching transistor TR2 in the first sub-pixel circuit, the scanning signal SCAN2 written into the gate of the switching transistor TR3 in the first sub-pixel circuit, the signal INTRST input to the reset switch control terminal, the signal ELVDD input to the drain of the driving transistor TR1, the output voltage Vout at the output terminal of the amplifier, the signal SMP input to the control terminal of the control switch in the detection circuit, and the input signal Vdata-R of the first sub-pixel circuit is a turn-on signal and the input signals Vdata-G / B of the second sub-pixel circuit and the third sub-pixel circuit are both turn-off signals in the detection period T2, respectively, in the first sub-pixel circuit under the detection mode.

[0099] At the same time, when the input signal of the second sub-pixel circuit is set to an on signal within the detection period T2, the input signals of the first sub-pixel circuit and the third sub-pixel circuit can be set to an off signal. In this scenario, the detection circuit connected to the second sub-pixel circuit can detect the output voltage Vout2 of the detection circuit connected to it within the detection period T2 under the red channel. Based on this, the driving current Id12 of the driving transistor TR1 in the second sub-pixel circuit under the red channel of the pixel point can be calculated in combination with the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0100] In addition, when the input signal of the third sub-pixel circuit is set to a high-level signal during the detection period T2, the input signals of the first sub-pixel circuit and the second sub-pixel circuit can both be set to low-level signals. In this scenario, the detection circuit connected to the third sub-pixel circuit can detect the output voltage Vout3 of the detection circuit connected to it during the detection period T2 under the red channel. Based on this, the driving current Id13 of the driving transistor TR1 in the third sub-pixel circuit under the red channel of the pixel point can be calculated in combination with the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0101] Further, based on the driving currents Id11, Id12 and Id13 of the driving transistor TR1 in the target sub-pixel circuits (including the first target sub-pixel circuit, the second target sub-pixel circuit and the third target sub-pixel circuit) corresponding to each pixel point in the target area in the display panel, and then according to the driving currents Id11, Id12 and Id13 of the driving transistor TR1 in the first target sub-pixel circuit, the second target sub-pixel circuit and the third target sub-pixel circuit corresponding to each pixel point in the target area, it can be determined whether the first driving current Id1 of the driving transistor TR1 in each target pixel circuit meets the compensation termination condition.

[0102] S300: If yes, determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit.

[0103] Specifically, when determining that each first signal information satisfies a preset compensation end condition, the processing chip may determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit.

[0104] The technical solution in the embodiment of the present application obtains at least one target area in the picture area of ​​the display panel, and obtains the first signal information corresponding to each target pixel circuit in each target area, and detects whether each first signal information meets the preset compensation end condition. If so, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit. Each first signal information is determined based on the current input signal of each pixel circuit in the display panel. The sum of the sizes of each target area is less than or equal to the size of the picture area, and there is no overlap between different target areas. The above method can detect whether each first signal information meets the compensation end condition through the first signal information corresponding to each target pixel circuit in at least one target area in the picture area of ​​the display panel. This process does not need to realize compensation processing through the complete picture area of ​​the display panel, and can only be realized through the picture area of ​​the display panel. In a partial area of ​​the area, compensation processing can be implemented for the voltage threshold of the driving transistor in each pixel circuit in the display panel, thereby improving the picture uniformity of the display panel, that is, improving the display effect of the output picture of the display panel, and reducing the amount of data required to be processed in the compensation processing process, thereby improving the compensation processing speed and efficiency, and can also reduce the complexity of the compensation processing and improve the accuracy of the compensation processing; at the same time, the above method has no restrictions on the size of the display panel, thereby increasing the use scenarios of the compensation processing; furthermore, the above method does not require human participation in the processing, which can not only improve the speed of the compensation processing, but also reduce the compensation processing error, and can greatly improve the accuracy of the compensation processing; in addition, the above method can verify whether the compensation processing meets the standards through the detection process, so as to improve the accuracy of the compensation processing results, improve the compensation effect, and meet the compensation needs.

[0105] In some scenarios, the target area is any divided area in the picture area. The following describes the process of detecting whether each first signal information satisfies the preset compensation end condition in this case. In one embodiment, if the target area is one, such as Figure 4 As shown, the step of detecting whether each first signal information satisfies the preset compensation end condition in the above S200 can be implemented in the following manner:

[0106] S221. Obtain a first difference value between each pair of first signal information.

[0107] The number of the target area may be one, and the area of ​​the target area may be smaller than or equal to the area of ​​the picture area corresponding to the entire display panel.

[0108] In practical applications, the first difference value between the pairwise first signal information may be a value obtained after performing arithmetic processing and / or comparison processing on the pairwise first signal information; the arithmetic processing may be implemented by at least one of multiplication, division, logarithmic, exponential, etc.

[0109] In the embodiment of the present application, the processing chip can obtain the first signal information corresponding to each target pixel circuit in the target area of ​​the display panel, and then subtract the first signal information in pairs to obtain corresponding multiple first difference values.

[0110] S222: If each first difference value is less than or equal to the first difference value threshold, determine that each first signal information satisfies the compensation end condition; otherwise, determine that each first signal information does not satisfy the compensation end condition.

[0111] Specifically, the processing chip can determine whether each first difference value is less than or equal to the first difference value threshold. When each first difference value is less than or equal to the first difference value threshold, it indicates that the first signal information of each target pixel circuit tends to be equal, and the luminous brightness of the pixel points corresponding to each target pixel circuit is basically the same, and it is determined that each first signal information meets the compensation end condition.

[0112] In addition, if at least one of the first difference values ​​is greater than or equal to the first difference value threshold, it is determined that each first signal information does not meet the compensation end condition. Optionally, the above-mentioned first difference value threshold can be determined based on historical experience values, or can be user-defined, which is not limited in the embodiments of the present application. At the same time, the above-mentioned first difference value threshold can be equal to a value close to 0, such as 0.01, 0.005, 0.15, 0.02, etc., and the above-mentioned first difference value threshold can be equal to or different from the above-mentioned difference value threshold.

[0113] In one embodiment, the first difference value threshold is 0.

[0114] In an ideal state, when each first difference value is equal to 0, it can be determined that each first signal information satisfies the compensation end condition.

[0115] In one embodiment, the first signal information includes a driving current, and the first difference value includes a driving current difference.

[0116] At the same time, in one embodiment, if there is only one target area, the step of detecting whether each first signal information satisfies the preset compensation end condition in the above S200 may include: if each first signal information is within the preset first signal information range, determining that each first signal information satisfies the compensation end condition; otherwise, determining that each first signal information does not satisfy the compensation end condition.

[0117] Specifically, the processing chip can determine whether the first signal information corresponding to each target pixel circuit in the target area is within the first signal information range. If so, it is determined that each first signal information meets the compensation end condition; otherwise, it is determined that each first signal information does not meet the compensation end condition.

[0118] The first signal information range may be determined according to standard signal information corresponding to each target pixel circuit when the output picture of the display panel achieves a uniform effect.

[0119] The technical solution in the embodiment of the present application obtains the first difference value between each pair of first signal information in each first signal information. If each first difference value is less than or equal to the first difference value threshold, it is determined that each first signal information satisfies the compensation end condition. Otherwise, it is determined that each first signal information does not satisfy the compensation end condition. The above method does not need to process the first signal information of all pixel circuits in the display panel, but only needs to process the first signal information of the pixel circuits corresponding to some areas in the picture area of ​​some display panels to determine whether the compensation end condition is met, so as to improve the uniformity of the output picture of the display panel. Compared with the traditional technology, the processing process reduces the amount of processed data, thereby improving the compensation processing speed and efficiency, and can also reduce the complexity of the compensation processing and improve the accuracy of the compensation processing.

[0120] In some scenarios, the target area is any number of divided areas in the picture area. The following describes the process of determining whether the original compensation signal of each pixel circuit meets the compensation end condition according to each first driving current in this case. In one embodiment, if there are multiple target areas, such as Figure 5 As shown, the step of determining whether the original compensation signal of each pixel circuit meets the compensation end condition according to each first driving current in the above S220 can be implemented in the following way:

[0121] S223 , obtaining a second difference value between first signal information corresponding to every two target pixel circuits in each target area.

[0122] Specifically, for any target area, the processing chip can obtain a second difference value between the first signal information corresponding to the two target pixel circuits in the target area. Optionally, the second difference value can be a value obtained after performing arithmetic processing and / or arithmetic processing and / or comparison processing on the first signal information corresponding to the two target pixel circuits; the arithmetic processing can be implemented by at least one of multiplication, division, logarithm, exponential operation, etc.

[0123] S224: If each second difference value is less than or equal to the second difference value threshold, obtain statistical signal information corresponding to each target area according to each first signal information.

[0124] It should be noted here that each second difference value is less than or equal to the second difference value threshold means that each second difference value is less than the second difference value threshold, each second difference value is equal to the second difference value threshold, or some second difference values ​​are less than the second difference value threshold and some second difference values ​​are equal to the second difference value threshold.

[0125] For example, Figure 6 Shown are five target areas corresponding to the display panel (eg, pixel block 1 area, pixel block 2 area, pixel block 3 area, pixel block 4 area, and pixel block 5 area).

[0126] Furthermore, statistical signal information corresponding to the target area may be acquired according to first signal information corresponding to each target pixel circuit in the target area.

[0127] Optionally, the statistical signal information corresponding to the target area may be obtained by averaging, weighted summing, taking the maximum value, taking the minimum value, etc. of the first signal information corresponding to each target pixel circuit in the target area.

[0128] In another embodiment, after executing the step in S223, the method may further include: if at least one second difference value is greater than or equal to a second difference value threshold, determining that each first signal information does not meet the compensation end condition.

[0129] Specifically, it can be determined whether there is at least one second difference value greater than or equal to the second difference value threshold among all the acquired second difference values. If so, it is determined that each first signal information does not meet the compensation end condition, and the compensation processing flow ends.

[0130] It should be noted here that the greater than here corresponds to the less than or equal to in the above step S224, and the greater than or equal to corresponds to the less than in the above step S224.

[0131] S225: If the third difference value between any two statistical signal information is less than or equal to the third difference value threshold, determine that each first signal information meets the compensation end condition.

[0132] The processing chip may determine whether each first signal information satisfies the compensation end condition based on each second difference value (or preset difference value) corresponding to each target area and the statistical signal information.

[0133] Specifically, the processing chip can obtain a pre-trained algorithm model, and then input the second difference values ​​(or preset difference values) corresponding to each target area and the statistical signal information corresponding to each target area into the algorithm model, and then the algorithm model outputs the result of determining whether each first signal information meets the compensation end condition.

[0134] In addition, the processing chip can also perform comparison processing and arithmetic operation based on the second difference values ​​(or preset difference values) corresponding to each target area and the statistical signal information corresponding to each target area, and then determine whether the first signal information meets the compensation end condition based on the processing results.

[0135] In one embodiment, after S224, the method further includes: if a third difference value between any two statistical signal information is greater than or equal to a third difference value threshold, determining that each first signal information does not meet the compensation end condition.

[0136] In an embodiment of the present application, it can be determined whether the second difference values ​​corresponding to each target area are less than or equal to the second difference value threshold, and whether the third difference value between the statistical signal information corresponding to any two target areas is less than or equal to the third difference value threshold. If the third difference value between the statistical signal information corresponding to any two target areas corresponding to each target area is less than or equal to the third difference value threshold, it can be determined that each first signal information meets the compensation end condition.

[0137] It should be noted here that judging whether the third difference value between the statistical signal information corresponding to any two target areas is less than or equal to the third difference value threshold can be understood as a horizontal judgment process between different target areas in the display panel.

[0138] Optionally, the second difference value threshold and the third difference value threshold can be determined based on historical experience values, or can be user-defined, which is not limited in the embodiments of the present application. At the same time, the second difference value threshold and the third difference value threshold can be equal to 0, or can be equal to a value close to 0, which is not limited in the embodiments of the present application. Among them, the second difference value threshold and the third difference value threshold can be equal to or different from the first difference value threshold.

[0139] In one embodiment, the second difference value threshold is 0; and the third difference value threshold is 0.

[0140] It should be noted here that, at the same time, the second difference value threshold and the third difference value threshold may both be equal to 0, or either one of them may be equal to 0.

[0141] The technical solution in the embodiment of the present application is to obtain the second difference value between the first signal information corresponding to the target pixel circuits in each target area, if each second difference value is less than or equal to the second difference value threshold, then obtain the statistical signal information corresponding to each target area according to each first signal information, if the third difference value between any two statistical signal information is less than or equal to the third difference value threshold, then determine that each first signal information meets the compensation end condition; in the case of preliminarily determining that the compensation end condition is not met, the above method can further determine whether each first signal information meets the compensation end condition by the difference value calculated by the first signal information and the size relationship between the relevant signal information and the corresponding difference value threshold, thereby improving the accuracy of the compensation processing result, and at the same time, the processing process does not require the participation of complex algorithms and is relatively simple, thereby reducing the complexity of determining whether each first signal information meets the compensation end condition, and can also speed up the speed of determining whether each first signal information meets the compensation end condition; in addition, the above method can set multiple target areas, which can improve the accuracy of determining whether each first signal information meets the compensation end condition relative to one target area; at the same time, the above method can be applied to the scene where the number of target areas is multiple, thereby increasing the use scenario of determining whether the effect of the compensation processing reaches the target effect;

[0142] In one embodiment, after performing the steps in S200 above, Figure 7 As shown, the above method may further include the following steps:

[0143] S400. When each first signal information does not satisfy the compensation end condition, compensation processing is performed on the voltage threshold of the driving transistor in each pixel circuit according to each first signal information to obtain second signal information of each target pixel circuit; each second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after the compensation processing.

[0144] In actual applications, for any pixel circuit, the processing chip can compensate the voltage threshold of the driving transistor TR1 in the pixel circuit in the display panel according to each first signal information, obtain the candidate compensation signal of each pixel circuit, and control each pixel circuit to input the candidate compensation signal to obtain the second signal information of each target pixel circuit.

[0145] In one embodiment, the processing chip can pre-train a compensation processing model, and then input each first signal information into the compensation processing model, and the compensation processing model performs compensation processing on the voltage threshold of the driving transistor TR1 in each pixel circuit and outputs the second signal information of each target pixel circuit. Optionally, the compensation processing model can be implemented by at least one of a convolutional neural network model, a fully connected neural network model, a long short-term memory neural network model, a recurrent neural network model, etc.

[0146] In another embodiment, the processing chip can also obtain the identifier corresponding to each target area, search the identifier of each target area and the identifier of each target pixel circuit in the mapping relationship table, and obtain the signal information matching the identifier of each target area and the identifier of each target pixel circuit in the mapping relationship table to determine it as the second signal information of each target pixel circuit. Optionally, the above mapping relationship table may include a one-to-one correspondence between different pixel circuit identifiers, different area identifiers, and different signal information.

[0147] In the embodiment of the present application, the candidate compensation signal of each pixel circuit is determined after performing at least one compensation process on the voltage threshold of the driving transistor in each pixel circuit.

[0148] S500 . When each second signal information satisfies a compensation end condition, determine the candidate compensation signal of each pixel circuit as the target compensation signal of each pixel circuit.

[0149] Specifically, the processing chip can detect whether each second signal information satisfies the compensation end condition, and when each second signal information satisfies the compensation end condition, determine the candidate compensation signal of each pixel circuit as the target compensation signal of each pixel circuit.

[0150] Among them, the implementation process of detecting whether each second signal information meets the compensation end condition is similar to the implementation process of the above step S200, except that the first signal information is replaced by the second signal information, which will not be repeated in the embodiment of the present application.

[0151] The technical solution in the embodiment of the present application is that, when each first signal information does not meet the compensation end condition, compensation processing is performed on the voltage threshold of the driving transistor in each pixel circuit according to each first signal information, and the second signal information of each target pixel circuit is obtained. When each second signal information meets the compensation end condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit, and each second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after the compensation processing; when it is determined that each first signal information does not meet the compensation end condition, the above method can continue to perform compensation processing on the voltage threshold of the driving transistor in each pixel circuit in the display panel to ensure that the compensation end condition is met after multiple compensation processing, thereby improving the correctness of the compensation processing result, and making the output picture of the display panel more uniform.

[0152] In one embodiment, if Figure 8 As shown, the step of performing compensation processing on the voltage threshold of the driving transistor in each pixel circuit according to each first signal information in the above S400 to obtain the second signal information of each target pixel circuit can be implemented in the following manner:

[0153] S410 : Determine compensation parameters corresponding to each pixel circuit according to each first signal information.

[0154] The compensation parameters corresponding to each pixel circuit can represent the actual voltage threshold ΔV of the driving transistor TR1 in each pixel circuit. th .

[0155] Optionally, the actual voltage threshold ΔV of the driving transistor TR1 is th It can be predicted based on the historical voltage threshold of the driving transistor TR1 and the current parameters of the driving transistor TR1; the current parameters of the driving transistor TR1 may include current amplification factor, dissipated power, frequency characteristics, maximum collector current, maximum reverse voltage, reverse current, etc. Among them, the actual voltage threshold ΔV of the driving transistor TR1 is th It can also be calculated by weighted summing, averaging, etc., of the historical voltage thresholds of the driving transistor TR1 in the historical time period.

[0156] In the embodiment of the present application, the signal information corresponding to each pixel circuit can be determined according to the first signal information corresponding to each target pixel circuit, and then the compensation parameter corresponding to each pixel circuit can be determined according to the signal information corresponding to each pixel circuit. The signal information corresponding to each pixel circuit includes the first signal information corresponding to each target pixel circuit and the signal information corresponding to the non-target pixel circuit.

[0157] In addition, for any pixel circuit, the processing chip can obtain the compensation parameters corresponding to the pixel circuit according to the signal information corresponding to the pixel circuit. The compensation parameters corresponding to the pixel circuit can be obtained by performing comparative analysis and search processing on the signal information corresponding to the pixel circuit to obtain the compensation parameters corresponding to the pixel circuit.

[0158] S420 , determining a candidate compensation signal for each pixel circuit according to each compensation parameter and an original compensation signal for each pixel circuit.

[0159] In the embodiment of the present application, for any pixel circuit, the processing chip can superimpose the compensation parameter Vth1 corresponding to the pixel circuit and the original compensation signal Vdata of the pixel circuit to obtain the candidate compensation signal Vdata' of the pixel circuit, ie, Vdata'=Vdata+Vth2.

[0160] In actual applications, the processing chip can send the candidate compensation signal Vdata' of each pixel circuit to the client device, instructing the user to control the input signal of each pixel circuit to be adjusted to the corresponding candidate compensation signal Vdata' and input it into each pixel circuit respectively, so as to compensate the voltage threshold of the driving transistor TR1 in each pixel circuit.

[0161] S430 , determining second signal information of each target pixel circuit according to the candidate compensation signal of each pixel circuit.

[0162] The second signal information of the target pixel circuit may also be voltage signal information. However, in the embodiment of the present application, the second signal information of the target pixel circuit may be the second driving current Id2 of the driving transistor TR1 in the target pixel circuit.

[0163] In practical applications, for any pixel circuit, when the candidate compensation signal of the pixel circuit is input into the pixel circuit and the pixel circuit is in the detection mode, the processing chip can also obtain the output voltage Vout of the detection circuit connected to the pixel circuit during the detection period T2 when the pixel circuit enters the detection mode, and calculate the second driving current Id2 of the driving transistor TR1 in the pixel circuit according to the output voltage Vout, the capacitance C of the capacitor in the detection circuit and the duration t corresponding to the detection period T2 using the formula Q=I*t=C*Vout.

[0164] The technical solution in the embodiment of the present application determines the compensation parameters corresponding to each pixel circuit based on each first signal information, determines the candidate compensation signal of each pixel circuit based on each compensation parameter and the original compensation signal of each pixel circuit, and determines the second signal information of each target pixel circuit based on the candidate compensation signal of each pixel circuit; the above method can obtain the second signal information of each target pixel circuit in each target area in the display panel after compensation processing, so as to provide reference information for further detecting whether the compensation end condition is met. The processing process is relatively simple and does not require the participation of complex algorithms, thereby improving the speed and efficiency of obtaining the second signal information.

[0165] The process of determining the compensation parameters corresponding to each pixel circuit according to each first signal information is described below. In one embodiment, the step of determining the compensation parameters corresponding to each pixel circuit according to each first signal information in the above S430 may include: searching for signal information matching each first signal information in a pre-constructed information table, and determining the compensation parameters corresponding to each matched signal information as the compensation parameters corresponding to each pixel circuit; the information table includes the correspondence between different signal information and different compensation parameters.

[0166] The above information table is constructed in advance according to simulation results and may include the corresponding relationship between different signal information and different compensation parameters.

[0167] Specifically, the first signal information corresponding to each target pixel circuit may be searched in a pre-constructed information table, and compensation parameters corresponding to each first signal information found in the information table may be obtained as compensation parameters corresponding to each pixel circuit.

[0168] The technical solution in the embodiment of the present application searches for signal information matching each first signal information in a pre-constructed information table, and determines the compensation parameters corresponding to each matched signal information as the compensation parameters corresponding to each pixel circuit; the above method can determine the compensation parameters corresponding to each pixel circuit respectively through the pre-constructed information table, the processing process is relatively simple, and the speed and efficiency of determining the compensation parameters can be improved; at the same time, the above method does not require manual processing, thereby reducing manual errors and improving the accuracy of the determined compensation parameters.

[0169] In some scenarios, after determining the candidate compensation signal of each pixel circuit, it is necessary to determine whether the candidate compensation signal of each pixel circuit meets the compensation end condition. The determination process is described below. Fig. 9 As shown, after executing the step in S420, the method may further include the following steps:

[0170] S440 . When each candidate compensation signal is determined, the size of each target area is increased to obtain a corresponding adjustment area.

[0171] Specifically, after determining the candidate compensation signal of each pixel circuit, and in the case of determining each candidate compensation signal, the processing chip may enlarge the size of each target area to obtain a corresponding adjustment area.

[0172] In the embodiment of the present application, the size of each target area is increased, that is, the area is increased, so as to complete the adjustment of each target area. The sum of the areas of the adjusted target areas can be less than or equal to the area of ​​the screen area, and there is no overlap between the adjusted target areas.

[0173] S450: Obtain third signal information corresponding to each adjustment pixel circuit in each adjustment area.

[0174] In the embodiment of the present application, each pixel circuit in the adjustment region is referred to as each adjustment pixel circuit. The third signal information of the adjustment pixel circuit may also be voltage signal information, but in the embodiment of the present application, the third signal information of the adjustment pixel circuit may be the third driving current Id3 of the driving transistor TR1 in the adjustment pixel circuit.

[0175] Furthermore, based on the acquired adjustment regions, the third signal information of each adjustment pixel circuit in each current adjustment region can be acquired, wherein the third signal information of each adjustment pixel circuit is calculated when the input signal of each pixel circuit in the display panel is the corresponding candidate compensation signal.

[0176] S460: Detect whether each third signal information satisfies a compensation end condition.

[0177] Specifically, the processing chip can determine whether the third signal information of each adjustment pixel circuit meets the compensation end condition based on the third signal information of each adjustment pixel circuit. The specific detection process in the above S460 is similar to the detection process in the above S200, except that the first signal information is replaced by the third signal information, which is not described in detail in the embodiment of the present application.

[0178] It should be noted here that, when each candidate compensation signal is determined, the output picture of the display panel when the input signal of each pixel circuit is the corresponding candidate compensation signal can be obtained, and the uniformity of the output picture can be roughly judged based on the visual effect of the output picture. At this time, the size of each target area can be reduced to reduce the amount of data processing in the subsequent processing process, speed up the compensation processing speed, and further greatly shorten the compensation time and improve the compensation efficiency.

[0179] S470, if satisfied, end the compensation process; otherwise, continuously increase the size of each adjustment area until the signal information corresponding to each adjustment pixel circuit meets the compensation end condition.

[0180] Furthermore, when it is determined that each third signal information satisfies the compensation end condition, each candidate compensation signal is determined as the target compensation signal of each pixel circuit, and the compensation processing is terminated; otherwise, the size of each adjustment area is continuously increased, and the compensation processing is continued until the signal information corresponding to each adjusted pixel circuit obtained after multiple compensation processing meets the compensation end condition.

[0181] It should be noted here that after each compensation process, the size of each adjustment area obtained last time may be enlarged, and the detection operation may be performed based on the enlarged adjustment area.

[0182] For ease of understanding, the specific steps of the above display method are described with an embodiment:

[0183] (1) When an original input signal is input to each pixel circuit in the display panel, a driving current Id1 of each driving transistor TR1 in each pixel circuit is obtained; the original input signal is an input signal of each pixel circuit without compensation processing;

[0184] (2) Searching the information table for signal information matching each driving current Id1, and determining the compensation parameter corresponding to each matched signal information as the ΔV corresponding to each pixel circuit th1 ;

[0185] (3) ΔV corresponding to each pixel circuit th1 The current input signal Vdata' corresponding to each pixel circuit is obtained by summing the original input signal Vdata of each pixel circuit, and the signal of each Vdata' is input into each pixel circuit to compensate the voltage threshold of the driving transistor TR1 in each pixel circuit;

[0186] (4) obtaining the driving current Id2 of each driving transistor TR1 in each pixel circuit after compensation processing;

[0187] (5) dividing the display panel into five pixel block regions (including pixel block 1 region, pixel block 2 region, pixel block 3 region, pixel block 4 region and pixel block 5 region), and for each pixel block region, comparing the driving current Id2 of each driving transistor TR1 in each target pixel circuit in the pixel block region;

[0188] (6) If at least one pixel block area among the pixel block areas does not satisfy the requirement that the driving currents Id2 of the driving transistors TR1 in the target pixel circuits in the pixel block areas are equal, or if at least one of the differences between the driving currents Id2 of the driving transistors TR1 of the target pixel circuits in any pixel block area among at least one of the five pixel block areas is greater than or equal to a preset difference threshold, then the process returns to step (2) to continue processing;

[0189] (7) If the driving current Id2 of each driving transistor TR1 in each target pixel circuit in each pixel block area is equal, or the difference between the driving current Id2 of each driving transistor TR1 of each target pixel circuit in any pixel block area in each pixel block area is within a preset difference threshold range, then the statistical determination current Id corresponding to the target area is obtained according to the driving current Id2 of the driving transistor TR1 in each target pixel circuit in the pixel block area;

[0190] (8) If the statistically determined currents Id corresponding to the five pixel block regions are all equal or the difference between the statistically determined currents Id falls within a certain value range, it is determined that the driving current Id2 of each driving transistor TR1 in each pixel circuit meets the compensation end condition, and the compensation process flow ends;

[0191] (9) If at least two of the statistically determined currents Id corresponding to the five pixel block areas are not equal, the size of each pixel block is enlarged to obtain the corresponding adjustment area, and the driving current Id2 of the driving transistor TR1 in each pixel circuit is used as the driving current Id1 of the driving transistor TR1 in each pixel circuit, and the five enlarged pixel block areas are used as the five pixel block areas selected for the next execution of the processing, and steps (2)-(9) are repeatedly executed. That is, if the condition for ending the compensation processing flow of step (8) is not met, when steps (2)-(9) are executed next time, the size of the five pixel block areas selected is larger than the pixel block area selected this time.

[0192] The technical solution in the embodiment of the present application, when each candidate compensation signal is determined, increases the size of each target area to obtain a corresponding adjustment area, obtains the third signal information of each adjustment pixel circuit in each adjustment area, detects whether each third signal information satisfies the compensation end condition, and if so, terminates the compensation processing; otherwise, continuously increases the size of each target area until the signal information corresponding to each adjustment pixel circuit satisfies the compensation end condition; after the compensation processing, the above method can obtain the corresponding adjustment area by increasing the size of each target area, and judge whether the compensation end condition is currently satisfied based on each adjustment area, so as to avoid stopping the compensation processing due to failure to meet the compensation end condition, thereby improving the accuracy of the compensation processing, and the process does not require the participation of complex algorithms, thereby reducing the complexity of the compensation processing and improving the speed and efficiency of the compensation processing.

[0193] Another embodiment provides a display method, which is applied to a display panel, wherein the display panel includes a plurality of pixel circuits, and the method includes:

[0194] Output the corresponding display screen according to the target compensation signal of each pixel circuit input; the target compensation signal of each pixel circuit is based on Figure 2 , 4 -5 and Figure 7-9 The method steps in any one of the embodiments are defined.

[0195] The compensation processing method provided in the embodiment of the present application can be used to perform the above-mentioned Figure 2 , 4 -5 and Figure 7-9 The technical solution in the compensation processing method embodiment has similar implementation principles and technical effects, which will not be repeated here.

[0196] For ease of understanding, the compensation processing method may be described through a complete embodiment. In one embodiment, the compensation processing method may include the following steps:

[0197] S10, obtaining at least one target area in the picture area of ​​the display panel, and obtaining first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap; the current input signal of each pixel circuit is determined based on the original input signal of each pixel circuit before compensation processing;

[0198] S11, detecting whether each first signal information satisfies a preset compensation end condition;

[0199] The process in the above step S11 can be implemented in three ways:

[0200] The first method, if the target area is one, includes:

[0201] S111, obtaining first difference values ​​between each pair of first signal information; the first signal information includes a driving current, and the first difference value includes a driving current difference;

[0202] S112: if each first difference value is less than or equal to a first difference value threshold, determine that each first signal information satisfies a compensation end condition; otherwise, determine that each first signal information does not satisfy the compensation end condition; the first difference value threshold is 0;

[0203] The second method, if there are multiple target areas, includes:

[0204] S114, obtaining a second difference value between first signal information corresponding to every two target pixel circuits in each target area;

[0205] S115. If at least one second difference value is less than or equal to the second difference value threshold, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit; if the third difference value between any two statistical signal information is less than or equal to the third difference value threshold, it is determined that each first signal information meets the compensation end condition; if the third difference value between any two statistical signal information is greater than or equal to the third difference value threshold, it is determined that each first signal information does not meet the compensation end condition; the second difference value threshold is 0, and the third difference value threshold is 0;

[0206] S116: If each second difference value is greater than or equal to the second difference value threshold, determine that each first signal information does not meet the compensation end condition;

[0207] S12, when each first signal information does not meet the compensation end condition, searching for signal information matching each first signal information in a pre-constructed information table, and determining the compensation parameters corresponding to each matched signal information as the compensation parameters corresponding to each pixel circuit; the information table includes the correspondence between different signal information and different compensation parameters;

[0208] S13, determining a candidate compensation signal of each pixel circuit according to each compensation parameter and an original compensation signal of each pixel circuit;

[0209] S14, determining second signal information of each target pixel circuit according to the candidate compensation signal of each pixel circuit; each second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after compensation processing;

[0210] S15, when each second signal information satisfies the compensation end condition, determining the candidate compensation signal of each pixel circuit as the target compensation signal of each pixel circuit;

[0211] S16, when each second signal information does not meet the compensation end condition, enlarging the size of each target area to obtain a corresponding adjustment area;

[0212] S17, obtaining third signal information corresponding to each adjustment pixel circuit in each adjustment area;

[0213] S18, detecting whether each third signal information satisfies the compensation end condition;

[0214] S19, if satisfied, end the compensation process; otherwise, continuously increase the size of each adjustment area until the signal information corresponding to each adjustment pixel circuit meets the compensation end condition.

[0215] The execution process of the above S10 to S19 may be specifically referred to the description of the above embodiment, and the implementation principle and technical effect thereof are similar and will not be described in detail here.

[0216] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0217] Based on the same inventive concept, the embodiment of the present application also provides a compensation processing device for implementing the compensation processing method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in the one or more compensation processing device embodiments provided below can refer to the limitations of the compensation processing method above, and will not be repeated here.

[0218] In one embodiment, Fig.10 This is a schematic diagram of the structure of a compensation processing device in one embodiment of the present application. The compensation processing device provided in the embodiment of the present application can be applied to a processing chip. Fig.10 As shown, the compensation processing device of the embodiment of the present application may include: an acquisition module 11, a detection module 12 and a first determination module 13, wherein:

[0219] An acquisition module 11 is used to acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, and the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap;

[0220] A detection module 12, used to detect whether each first signal information satisfies a preset compensation end condition;

[0221] A first determination module 13, configured to determine the current input signal of each pixel circuit as a target compensation signal of each pixel circuit when the end of the detection module is yes;

[0222] The current input signal of each pixel circuit is determined according to the original input signal of each pixel circuit before compensation processing.

[0223] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0224] In one embodiment, if there is only one target area, the detection module 12 includes: a first acquisition unit and a first determination unit, wherein:

[0225] A first acquisition unit, configured to acquire a first difference value between each pair of first signal information;

[0226] A first determination unit is used to determine that each first signal information meets the compensation end condition when each first difference value is less than or equal to a first difference value threshold; otherwise, determine that each first signal information does not meet the compensation end condition; the first difference value threshold is 0;

[0227] The first signal information includes a driving current, and the first difference value includes a driving current difference.

[0228] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0229] In one embodiment, if there is only one target area, the detection module 12 includes: a search unit, wherein:

[0230] The searching unit is used to determine that each first signal information satisfies the compensation end condition if each first signal information is within a preset first signal information range; otherwise, determine that each first signal information does not satisfy the compensation end condition.

[0231] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0232] In one embodiment, if there are multiple target areas, the detection module 12 includes: a detection unit, a third acquisition unit, a second acquisition unit, and a second determination unit, wherein:

[0233] A second acquisition unit, used for acquiring a second difference value between first signal information corresponding to every two target pixel circuits in each target area;

[0234] A third acquisition unit, configured to acquire statistical signal information corresponding to each target area according to each first signal information when each second difference value is less than or equal to a second difference value threshold;

[0235] A second determining unit, configured to determine that each first signal information satisfies a compensation end condition when a third difference value between any two statistical signal information is less than or equal to a third difference value threshold;

[0236] In one embodiment, the second difference value threshold is 0;

[0237] In one embodiment, the third difference value threshold is 0.

[0238] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0239] In one embodiment, the detection module 12 further includes: a third determination unit, wherein:

[0240] The third determining unit is configured to determine that each first signal information does not meet the compensation end condition if at least one second difference value is greater than or equal to a second difference value threshold.

[0241] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0242] In one embodiment, the detection module 12 further includes: a fourth determination unit, wherein:

[0243] The fourth determining unit is configured to determine that each first signal information does not meet the compensation end condition if the third difference value between any two statistical signal information is greater than or equal to the third difference value threshold.

[0244] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0245] In one embodiment, the compensation processing device further includes: a compensation processing module and a second determination module, wherein:

[0246] A compensation processing module, configured to, when each first signal information does not satisfy a compensation end condition, perform compensation processing on a voltage threshold of a driving transistor in each pixel circuit according to each first signal information, and obtain second signal information of each target pixel circuit; each second signal information is determined based on a candidate compensation signal of each pixel circuit obtained after the compensation processing;

[0247] The second determination module is used to determine the candidate compensation signal of each pixel circuit as the target compensation signal of each pixel circuit when each second signal information satisfies the compensation end condition.

[0248] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0249] In one embodiment, the compensation processing module includes: a fifth determination unit, a sixth determination unit and a seventh determination unit, wherein:

[0250] A fifth determining unit, used to determine a compensation parameter corresponding to each pixel circuit according to each first signal information;

[0251] a sixth determining unit, configured to determine a candidate compensation signal for each pixel circuit according to each compensation parameter and an original compensation signal for each pixel circuit;

[0252] The seventh determining unit is used to determine the second signal information of each target pixel circuit according to the candidate compensation signal of each pixel circuit.

[0253] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0254] In one embodiment, the fourth determining unit is specifically configured to:

[0255] The signal information matching each first signal information is searched in the pre-constructed information table, and the compensation parameters corresponding to each matched signal information are determined as the compensation parameters corresponding to each pixel circuit; the information table includes the correspondence between different signal information and different compensation parameters.

[0256] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0257] In one embodiment, the compensation processing module further includes: an adjustment unit, a third acquisition unit, a detection unit and a seventh determination unit, wherein:

[0258] An adjustment unit, configured to increase the size of each target area to obtain a corresponding adjustment area when each candidate compensation signal is determined;

[0259] A third acquisition unit, used to acquire third signal information corresponding to each adjustment pixel circuit in each adjustment area;

[0260] A detection unit, used to detect whether each third signal information satisfies a compensation end condition;

[0261] The seventh determining unit is used to terminate the compensation process if the conditions are met; otherwise, the size of each adjustment area is continuously increased until the signal information corresponding to each adjustment pixel circuit meets the compensation termination condition.

[0262] The compensation processing device provided in the embodiment of the present application can be used to execute the technical solution in the above-mentioned compensation processing method embodiment of the present application. Its implementation principle and technical effect are similar and will not be repeated here.

[0263] For the specific definition of the compensation processing device, please refer to the definition of the compensation processing method above, which will not be repeated here. Each module in the above compensation processing device can be implemented in whole or in part by software, hardware and a combination thereof. The above modules can be embedded in or independent of the processor in the processing chip in the form of hardware, or can be stored in the memory in the processing chip in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0264] In one embodiment, a computer device is also provided. The internal structure diagram of the computer device can be as follows: Fig.11As shown. The computer device includes a processing chip, a processor connected through a system bus, a memory and a network interface. Among them, the processing chip of the computer device is used to provide processing capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The information library of the computer device is used to store pre-constructed information tables. The network interface of the computer device is used to communicate with an external endpoint through a network connection. When the computer program is executed by the processing chip, a compensation processing method is implemented.

[0265] Those skilled in the art will understand that Fig.11 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0266] In one embodiment, a computer device is provided, including a processing chip, a memory, and a processor, wherein a computer program is stored in the memory, and when the processing chip executes the computer program, the following steps are implemented:

[0267] Acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, and the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap;

[0268] Detecting whether each first signal information satisfies a preset compensation end condition;

[0269] If so, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0270] In one embodiment, a computer-readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a processing chip, the following steps are implemented:

[0271] Acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, and the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap;

[0272] Detecting whether each first signal information satisfies a preset compensation end condition;

[0273] If so, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0274] In one embodiment, a computer program product is also provided, including a computer program, which implements the following steps when executed by a processing chip:

[0275] Acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, and the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap;

[0276] Detecting whether each first signal information satisfies a preset compensation end condition;

[0277] If so, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0278] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0279] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0280] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A compensation processing method, characterized in that: The method comprises: Acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each target area, wherein each first signal information is determined based on a current input signal of each pixel circuit in the display panel, and the sum of the sizes of each target area is less than or equal to the size of the picture area, and different target areas do not overlap; Detecting whether each of the first signal information satisfies a preset compensation end condition; If so, the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

2. The method according to claim 1, characterized in that If there is one target area, detecting whether each of the first signal information satisfies a preset compensation end condition includes: Obtaining first difference values ​​between pairs of first signal information in each of the first signal information; If each of the first difference values ​​is less than or equal to the first difference value threshold, it is determined that each of the first signal information satisfies the compensation end condition; otherwise, it is determined that each of the first signal information does not satisfy the compensation end condition; Optionally, the first signal information includes a driving current, and the first difference value includes a driving current difference; Optionally, the first difference value threshold is 0.

3. The method according to claim 1, characterized in that If there is one target area, detecting whether each of the first signal information satisfies a preset compensation end condition includes: If each of the first signal information is within the preset first signal information range, it is determined that each of the first signal information meets the compensation end condition; otherwise, it is determined that each of the first signal information does not meet the compensation end condition.

4. The method according to claim 1, characterized in that: If there are multiple target areas, the detecting whether each of the first signal information satisfies a preset compensation end condition includes: Acquire a second difference value between the first signal information corresponding to each of the target pixel circuits in each target area; If each of the second difference values ​​is less than or equal to a second difference value threshold, acquiring statistical signal information corresponding to each of the target areas according to each of the first signal information; If the third difference value between any two statistical signal information is less than or equal to the third difference value threshold, determining that each of the first signal information meets the compensation end condition; Optionally, the method further comprises: If at least one of the second difference values ​​is greater than or equal to the second difference value threshold, determining that each of the first signal information does not meet the compensation end condition; Optionally, the method further comprises: If the third difference value between any two statistical signal information is greater than or equal to the third difference value threshold, determining that each of the first signal information does not meet the compensation end condition; Optionally, the second difference value threshold is 0; Optionally, the third difference value threshold is 0.

5. The method according to any one of claims 1 to 4, characterized in that After detecting whether each of the first signal information satisfies a preset compensation end condition, the method further includes: When each of the first signal information does not satisfy the compensation end condition, compensation processing is performed on the voltage threshold of the driving transistor in each of the pixel circuits according to each of the first signal information to obtain second signal information of each of the target pixel circuits; each of the second signal information is determined based on the candidate compensation signal of each of the pixel circuits obtained after the compensation processing; In a case where each of the second signal information satisfies the compensation end condition, the candidate compensation signal of each of the pixel circuits is determined as the target compensation signal of each of the pixel circuits.

6. The method according to claim 5, characterized in that The compensating the voltage threshold of the driving transistor in each pixel circuit in the display panel according to each of the first signal information to obtain the second signal information of each of the target pixel circuits includes: Determining compensation parameters corresponding to each of the pixel circuits according to each of the first signal information; Determining a candidate compensation signal for each pixel circuit according to each compensation parameter and an original compensation signal for each pixel circuit; Determining second signal information of each of the target pixel circuits according to the candidate compensation signal of each of the pixel circuits; Optionally, determining the compensation parameter corresponding to each pixel circuit according to each first signal information includes: Search the pre-constructed information table for signal information matching each of the first signal information, and determine the compensation parameters corresponding to each of the matched signal information as the compensation parameters corresponding to each of the pixel circuits; the information table includes the correspondence between different signal information and different compensation parameters.

7. The method according to any one of claims 1 to 4, characterized in that The current input signal of each pixel circuit is determined according to the original input signal of each pixel circuit before compensation processing; the method further includes: When the candidate compensation signal of each pixel circuit is determined, the size of each target area is increased to obtain a corresponding adjustment area; Acquire third signal information corresponding to each adjustment pixel circuit in each adjustment area; Detecting whether each of the third signal information satisfies the compensation end condition; If so, the compensation process is terminated; otherwise, the size of each adjustment area is continuously increased until the signal information corresponding to each adjustment pixel circuit meets the compensation termination condition.

8. A display method, characterized in that: Applied to a display panel, the display panel includes a plurality of pixel circuits, and the method includes: A corresponding display screen is output according to the input target compensation signal of each pixel circuit; the target compensation signal of each pixel circuit is determined according to the steps of the method described in any one of claims 1-7.

9. A compensation processing device, characterized in that: The device comprises: an acquisition module, configured to acquire at least one target area in the picture area of ​​the display panel, and acquire first signal information corresponding to each target pixel circuit in each of the target areas, wherein each of the first signal information is determined based on a current input signal of each pixel circuit in the display panel, a sum of sizes of each of the target areas is less than or equal to a size of the picture area, and different target areas do not overlap; A detection module, used to detect whether each of the first signal information satisfies a preset compensation end condition; The first determination module is used to determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit when the end of the detection module is yes.

10. A display device, characterized in that: The device comprises: A picture output module is used to output a corresponding display picture according to the target compensation signal of each pixel circuit input; the target compensation signal of each pixel circuit is determined according to the steps of any one of the methods described in claims 1-7.

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