Compensation processing method and apparatus

Abstract

The application 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 a display panel, and acquiring first signal information corresponding to each target pixel circuit in each target area; detecting whether each first signal information meets a preset compensation end condition; if yes, determining a current input signal of each pixel circuit as a target compensation signal of each pixel circuit; 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 above method can verify whether the compensation processing meets the requirements through the detection process, so as to improve the accuracy of the compensation processing result, improve the compensation effect, and meet the compensation requirements.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a compensation processing method and apparatus. Background Technology

[0002] With the development of technology, display panels are widely used in electronic devices such as mobile phones, tablets, and information kiosks in public lobbies.

[0003] Taking an Active-Matrix Organic Light-Emitting Diode (AMOLED) display panel as an example, each pixel circuit in an AMOLED display panel includes an AMOLED, a driving transistor, and a capacitor. The AMOLED display panel primarily emits light through the driving transistor and capacitor in each pixel circuit. In practical applications, to improve the display uniformity of the panel, it is necessary to compensate for the voltage threshold of the driving transistor in each pixel circuit.

[0004] However, in the related technologies, there is a problem that the compensation results cannot meet the compensation requirements during the compensation process for each driving transistor's voltage threshold. Summary of the Invention

[0005] Therefore, it is necessary to provide a compensation processing method and apparatus to address the above-mentioned 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, embodiments of this application provide a compensation processing method, the method comprising:

[0007] At least one target area in the screen area of ​​the display panel is obtained, and first signal information corresponding to each target pixel circuit in each target area is obtained. 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 screen area, and different target areas do not overlap.

[0008] Detect whether each first signal information meets the preset compensation termination 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 region, the detection of whether each first signal information meets a preset compensation termination condition includes:

[0011] Obtain the first difference value between each pair of first signal information in each first signal information;

[0012] If each first difference value is less than or equal to the first difference value threshold, then each first signal information is determined to meet the compensation termination condition; otherwise, each first signal information is determined not to meet the compensation termination condition.

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

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

[0015] In one embodiment, if there is only one target region, the detection of whether each first signal information meets a preset compensation termination condition includes:

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

[0017] In one embodiment, if there are multiple target regions, the detection of whether each first signal information meets a preset compensation termination condition includes:

[0018] Obtain the second difference value between the first signal information corresponding to each pair of target pixel circuits within each target region;

[0019] If each second difference value is less than or equal to the second difference value threshold, then the statistical signal information corresponding to each target area is obtained based on 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, then each first signal information is determined to meet the compensation termination 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, then it is determined that each first signal information does not meet the compensation termination condition.

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

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

[0025] In one embodiment, the second difference threshold is 0;

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

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

[0028] If the compensation termination condition is not met for each of the first signal information, the voltage threshold of the driving transistor in each pixel circuit is compensated according to each of the first signal information to obtain the second signal information of each target pixel circuit; each of the second signal information is determined based on the candidate compensation signals of each pixel circuit obtained after the compensation processing.

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

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

[0031] Based on the information of each first signal, determine the compensation parameters corresponding to each pixel circuit;

[0032] Based on the compensation parameters and the original compensation signals of each pixel circuit, the candidate compensation signals for each pixel circuit are determined.

[0033] Based on the candidate compensation signals of each pixel circuit, the second signal information of each target pixel circuit is determined.

[0034] In one embodiment, compensation parameters corresponding to each pixel circuit are determined based on each first signal information, including:

[0035] The system searches for signal information that matches each first signal information in a pre-built information table, and determines 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.

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

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

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

[0039] Obtain the third signal information corresponding to each adjustment pixel circuit within each adjustment area;

[0040] Detect whether each third signal information meets the compensation termination condition;

[0041] If the conditions are met, the compensation process ends; 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] Secondly, embodiments of this application provide a display method applied to a display panel, the display panel including multiple pixel circuits, the method comprising:

[0043] The corresponding display screen is output 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.

[0044] Thirdly, embodiments of this application provide a compensation processing apparatus, which includes:

[0045] The acquisition module is used to acquire at least one target area in the screen area of ​​the display panel, and to acquire the first signal information corresponding to each target pixel circuit in each target area. 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 screen area, and different target areas do not overlap.

[0046] The detection module is used to detect whether each first signal information meets the preset compensation termination condition;

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

[0048] Fourthly, embodiments of this application also provide a display device, the device comprising:

[0049] The image output module is used to output the corresponding display image according to the target compensation signal of each input 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.

[0050] Fifthly, embodiments of this application also provide a computer device, which includes a processing chip, a memory, and a processor. The memory stores a computer program, and the processing chip executes the computer program to implement the steps of the method in any of the embodiments of the first aspect described above.

[0051] In a sixth aspect, embodiments of this application also provide a computer-readable storage medium storing a computer program, which, when executed by a processing chip, implements the steps of the method in any of the embodiments of the first aspect described above.

[0052] In a seventh aspect, embodiments of this application also provide a computer program product, which includes a computer program that, when executed by a processing chip, implements the steps of the method in any of the embodiments of the first aspect described above.

[0053] The aforementioned compensation processing method and apparatus include: acquiring at least one target area in the screen 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 termination condition, and if so, determining the current input signal of each pixel circuit as the target compensation signal of each pixel circuit, 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 screen area, and different target areas do not overlap. The above method can detect whether the first signal information meets the compensation termination condition by using the first signal information corresponding to the target pixel circuit of at least one target area in the screen area of ​​the display panel. This process does not require the entire screen area of ​​the display panel to perform compensation processing; it only requires a portion of the screen area to compensate the voltage threshold of the driving transistors in each pixel circuit of the display panel. This improves the uniformity of the display panel's image, thus enhancing the display effect of the output image. Furthermore, it reduces the amount of data processed during the compensation process, thereby increasing the speed and efficiency of the compensation process, reducing its complexity, and improving its accuracy. Simultaneously, the method has no limitations on the size of the display panel, increasing the application scenarios for compensation processing. Moreover, the method does not require manual intervention, which not only increases the speed of compensation processing but also reduces errors, significantly improving its accuracy. Finally, the detection process verifies whether the compensation processing meets the standards, improving the accuracy of the compensation results and enhancing the compensation effect to meet compensation requirements. Attached Figure Description

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

[0055] Figure 2 This is a flowchart illustrating the compensation processing method in one embodiment;

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

[0057] Figure 4 This is a flowchart illustrating the compensation processing method in another embodiment;

[0058] Figure 5This is a flowchart illustrating the compensation processing method in another embodiment;

[0059] Figure 6 This is a diagram illustrating five pixel blocks in a display panel in one embodiment;

[0060] Figure 7 This is a flowchart illustrating the compensation processing method in another embodiment;

[0061] Figure 8 This is a flowchart illustrating the compensation processing method in another embodiment;

[0062] Figure 9 This is a flowchart illustrating the compensation processing method in another embodiment;

[0063] Figure 10 This is a structural block diagram of the compensation processing device in one embodiment;

[0064] Figure 11 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0066] In the field of display panels, each pixel circuit in a display panel includes a light-emitting diode (LED), a driving transistor, and a capacitor. Due to variations in the manufacturing process and the potential for voltage threshold Vth differences among the driving transistors in different pixel circuits, as well as the possibility of voltage threshold Vth drift caused by unstable driving transistor performance (such as negative or positive drift), the degree of voltage threshold offset in the driving transistors at different locations on the display panel may differ. This results in uneven display image quality, i.e., poor uniformity. To improve the uniformity of the display image, related technologies primarily compensate for the voltage thresholds of the driving transistors in each pixel circuit to eliminate the influence of the voltage thresholds on the driving current of each driving transistor. However, these related technologies suffer from low compensation efficiency for the voltage thresholds of the driving transistors. Therefore, this application provides a compensation method that can improve the compensation efficiency of the voltage thresholds of the driving transistors in each pixel circuit.

[0067] The compensation processing method provided in this application embodiment can be applied to a compensation processing system. In one scenario, the compensation processing system may include a processing chip and a display panel, with a communication connection between the processing chip and the display panel. This communication method can be parallel bus communication, serial bus communication, etc. The processing chip may be a chip built into a computer device or a standalone chip, but is not limited to a Field Programmable Gate Array (FPGA) chip or a Timing Controller (TCON) chip. The display panel includes multiple pixel circuits and at least one detection circuit. Each detection circuit can be connected to at least one pixel circuit. The structures of each pixel circuit and each detection circuit can be the same or different.

[0068] In practical applications, the compensation methods for the voltage threshold of the driving transistor can include internal compensation and external compensation. Since the external compensation scheme has advantages such as simple pixel circuit and small unit pixel circuit area in high pixel density unit display applications, the embodiments of this application adopt the external compensation method to realize the compensation process, that is, to add an external detection circuit to the pixel circuit.

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

[0070] In this embodiment, each pixel circuit can be a 3T1C pixel circuit. Each pixel circuit 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 that the driving method for each pixel circuit can be to control the brightness (pixel value) of the pixel through the driving transistor TR1, the two switching transistors (TR2 and TR3), and the storage capacitor CST. The aforementioned light-emitting diode can be a micro-LED, an organic light-emitting diode, or a polymer light-emitting diode, etc. Furthermore, TR1, TR2, and TR3 can be, but are not limited to, N-type TFT transistors. Optionally, the driving transistor TR1 mainly plays a driving role in the pixel circuit, providing driving current to the pixel electrode of the cathode or anode of the organic light-emitting diode OLED.

[0071] like Figure 1 The diagram shows the circuit structure of the pixel circuit described above. The gate of the switching transistor TR2 in the pixel circuit is connected to the scan signal SCAN1. The first terminal 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 terminal of the switching transistor TR2, the gate of the driving transistor TR1, and one end of the storage capacitor CST are all connected to node G. The source of the driving transistor TR1, the other end of the storage capacitor CST, the first terminal of the switching transistor TR3, and the positive terminal of the organic light-emitting diode OLED are all connected to 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 (e.g., ground). The gate of the switching transistor TR3 is connected to the scan signal SCAN2, and the second terminal of the switching transistor TR3 is connected to the detection circuit.

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

[0073] Furthermore, each of the above detection circuits includes a sensing line, a reset switch, an amplifier, a capacitor C, and a control switch. See also... Figure 1 As shown, in the detection circuit connected to the pixel circuit, the reset switch is connected in parallel with capacitor C. One end of the reset switch, one end of capacitor C, and the inverting input 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 capacitor C, the output of the amplifier, and one end of the control switch are connected to the same node. The non-inverting input of the amplifier is connected to the reference voltage VREF. The detection line is electrically connected to the second terminal of the switching transistor TR3.

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

[0075] In the initial time period T1, the scan signal SCAN1 is written to the gate of switching transistor TR2, the scan signal SCAN2 is written to the gate of switching transistor TR3, the data signal Vdata is written to the gate of driving transistor TR1, and the voltage signal VREF is written to the source of driving transistor TR1 through switching transistor TR3. At this time, the source of driving transistor TR1 is turned on, and the potential of the source of driving transistor TR1 is equal to the potential on the detection line in the detection circuit, i.e., VREF. During this time period, if the amplifier is not needed to operate, the reset switch can be controlled to close, shorting the inverting input terminal and the output terminal of the amplifier, making their electrical position VREF; if the amplifier needs to operate, the reset switch can be controlled to open, turning on the inverting input terminal and the output terminal of the amplifier.

[0076] During the detection period T2, the potential of the source S of the driving transistor TR1 remains constant, as does the voltage difference Vgs between the gate and source of the driving transistor TR1. 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 progresses, the amplifier's output voltage Vout changes linearly with time because the amplifier accumulates the input charge. The amplifier's output voltage Vout is sampled and acquired when the falling edge of the control terminal SMP of the control switch is triggered.

[0077] During the calculation period T3, based on the output voltage Vout, the capacitance C of the capacitor, and the duration t corresponding to the detection period T2, the driving current Id of the driving transistor TR1 is calculated using the formula Q=I*t=C*Vout (where Q represents the 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, and Vout represents the output voltage accumulated by the amplifier during the detection period T2).

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

[0079] The following embodiments will describe the specific process of the compensation processing method, using the processing chip as the execution entity. Figure 2 The diagram shown is a flowchart illustrating the compensation processing method provided in an embodiment of this application. The method may include the following steps:

[0080] S100: Obtain at least one target area in the screen area of ​​the display panel, and obtain first signal information corresponding to each target pixel circuit in each target area. The 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 screen area, and different target areas do not overlap.

[0081] It should be noted that the entire display panel's corresponding screen area may include at least one target area. The size of each target area is smaller than the screen area size of the display panel, and the sizes of different target areas may be equal or unequal. Furthermore, the sum of the sizes of different target areas may be less than the screen area size 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 screen area of ​​the display panel in the same direction. Additionally, the sum of the areas of different target areas may also be less than or equal to the area of ​​the screen area of ​​the display panel. In this embodiment, the size of the display panel can be small or medium-large; this embodiment does not limit the size.

[0082] Specifically, the processing chip can divide the screen area of ​​the display panel into multiple division areas, and then randomly select at least one division area from the multiple division areas as the corresponding target area.

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

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

[0085] Simultaneously, the processing chip can acquire the first signal information corresponding to each target pixel circuit within each target area. In this embodiment, each pixel circuit within the target area can be referred to as a target pixel circuit. Furthermore, the first signal information corresponding to the aforementioned target pixel circuit can be voltage signal information. In this embodiment, the aforementioned first signal information can be the first driving current Id1 of the driving transistor TR1 in the target pixel circuit.

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

[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 using the formula Q=I*t=C*Vout based on the output voltage Vout, the capacitance C of the capacitor in the detection circuit and the duration t corresponding to the detection period T2.

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

[0089] S200: Detect whether each first signal information meets the preset compensation termination condition.

[0090] The aforementioned preset compensation termination condition may include the corresponding condition that the driving current Id of the driving transistor TR1 in some or all pixel circuits is satisfied when the uniformity of the output image of the display panel is high. Simultaneously, each initial compensation signal satisfying the preset compensation termination condition indicates that the uniformity of the output image of the display panel has achieved a high effect, meaning that the pixel information of each pixel in the output image of the display panel remains consistent over time. Optionally, the aforementioned 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 preceding steps, the processing chip can perform arithmetic and comparison operations on the first signal information corresponding to each target pixel circuit, and determine whether each first signal information meets the compensation termination condition based on the processing results.

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

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

[0094] Since the pixel information of any pixel in the image output by the display panel can include three sub-pixel information: red, green, and blue, to improve the accuracy of the compensation effect, each pixel in the display panel can 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 can be the pixel circuit corresponding to the red channel of the pixel, the second sub-pixel circuit can be the pixel circuit corresponding to the green channel of the pixel, and the third sub-pixel circuit can be the sub-pixel circuit corresponding to the blue channel of the pixel. 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 pixel circuit described above.

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

[0096] It should be noted that when different sub-pixel circuits corresponding to pixels in three different channels enter the detection mode, if the input signal of the first sub-pixel circuit is set to the on signal during the detection period T2, the input signals of the second and third sub-pixel circuits can both 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 during the detection period T2 in the red channel. Based on this, the driving current Id11 of the driving transistor TR1 in the first sub-pixel circuit in the red channel of the pixel can be calculated by combining the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0097] It should be noted 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. The two are in one-to-one correspondence.

[0098] For example, such as Figure 3The diagram shows the waveforms of the following signals in the first sub-pixel circuit during detection mode: the scan signal SCAN1 written to the gate of the switching transistor TR2 in the first sub-pixel circuit; the scan signal SCAN2 written to the gate of the switching transistor TR3 in the first sub-pixel circuit; the signal INTRST at the input reset switch control terminal; the signal ELVDD at the drain of the input drive transistor TR1; the output voltage Vout at the amplifier output terminal; the signal SMP at the control switch control terminal in the input detection circuit; and during detection period T2, the input signal Vdata-R of the first sub-pixel circuit is a conducting signal while the input signals Vdata-G / B of the second and third sub-pixel circuits are both closed signals.

[0099] Meanwhile, when the input signal of the second sub-pixel circuit is set to the on signal during the detection period T2, the input signals of the first sub-pixel circuit and the third sub-pixel circuit can both be set to the 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 during the detection period T2 in the red channel. Based on this, the driving current Id12 of the driving transistor TR1 in the second sub-pixel circuit in the red channel of this pixel can be calculated by combining the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0100] Furthermore, when the input signal of the third sub-pixel circuit is set to a high level during the detection period T2, the input signals of the first and second sub-pixel circuits can both be set to a low level. 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 in the red channel. Based on this, the driving current Id13 of the driving transistor TR1 in the third sub-pixel circuit in the red channel of this pixel can be calculated by combining the capacitance C of the capacitor and the duration t corresponding to the detection period T2.

[0101] Furthermore, 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 in the target area of ​​the display panel, 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 so, then the current input signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0103] Specifically, when the processing chip determines that each first signal information meets the preset compensation termination condition, it can determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit.

[0104] The technical solution in this application embodiment obtains at least one target area in the screen area of ​​the display panel, and obtains first signal information corresponding to each target pixel circuit in each target area. It then detects whether each first signal information meets a preset compensation termination condition. If so, the current input signal of each pixel circuit is determined as the target compensation signal for that 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 screen area, and different target areas do not overlap. This method can detect whether each first signal information meets the compensation termination condition using the first signal information corresponding to each target pixel circuit in at least one target area of ​​the screen area of ​​the display panel. This process does not require compensation processing through the entire screen area of ​​the display panel; it only requires the first signal information of the screen area of ​​the display panel. In specific areas of the display panel, compensation can be applied to the voltage thresholds of the driving transistors in each pixel circuit, improving the uniformity of the display image and thus enhancing the display effect. This also reduces the amount of data processed during the compensation process, increasing its speed and efficiency, reducing complexity, and improving accuracy. Furthermore, this method is not limited by the size of the display panel, expanding its application scenarios. Moreover, it requires no manual intervention, increasing processing speed and reducing errors, significantly improving accuracy. Finally, the detection process verifies whether the compensation meets the standards, enhancing the accuracy and effectiveness of the results to satisfy compensation requirements.

[0105] In some scenarios, the target area is any segmented region within the screen area. The process for detecting whether each first signal information satisfies a preset compensation termination condition in this case is described below. In one embodiment, if the target area is a single region, such as... Figure 4 As shown, the step in S200 above, which detects whether each first signal information meets the preset compensation termination condition, can be implemented in the following way:

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

[0107] The number of target areas can be one, and the area of ​​the target area can be less than or equal to the area of ​​the corresponding screen area of ​​the entire display panel.

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

[0109] In this embodiment of the 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 from each pair to obtain a plurality of corresponding first difference values.

[0110] S222. If each first difference value is less than or equal to the first difference value threshold, then each first signal information is determined to meet the compensation termination condition; otherwise, each first signal information is determined not to meet the compensation termination condition.

[0111] Specifically, the processing chip can determine whether each first difference value is less than or equal to the first difference value threshold. If 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 corresponding pixel of each target pixel circuit is basically the same, thus determining that each first signal information meets the compensation termination condition.

[0112] Furthermore, if at least one of the first difference values ​​is greater than or equal to a first difference value threshold, it is determined that each of the first signal information does not meet the compensation termination condition. Optionally, the aforementioned first difference value threshold may be determined based on historical experience or may be user-defined; this embodiment of the application does not limit this. Simultaneously, the aforementioned first difference value threshold may be equal to a value close to 0, such as 0.01, 0.005, 0.15, 0.02, etc., and the aforementioned first difference value threshold may or may not be equal to the aforementioned difference value threshold.

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

[0114] In an ideal scenario, when all first difference values ​​are equal to 0, it can be determined that each first signal information satisfies the compensation termination condition.

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

[0116] Meanwhile, in one embodiment, if there is only one target area, the step of detecting whether each first signal information meets the preset compensation end condition in S200 may include: if each first signal information is within the preset first signal information range, then determine that each first signal information meets the compensation end condition; otherwise, determine that each first signal information does not meet 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 range of the first signal information. If so, it is determined that each first signal information meets the compensation termination condition; otherwise, it is determined that each first signal information does not meet the compensation termination condition.

[0118] The aforementioned first signal information range can be determined based on the standard signal information corresponding to each target pixel circuit, provided that the output image of the display panel achieves a uniform effect.

[0119] The technical solution in this application embodiment obtains the first difference value between each pair of 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 meets the compensation termination condition; otherwise, it is determined that each first signal information does not meet the compensation termination 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 a portion of the screen area of ​​a portion of the display panel to determine whether the compensation termination condition is met, thereby improving the uniformity of the output screen of the display panel. Compared with traditional technology, this processing reduces the amount of data processed, thereby improving the compensation processing speed and efficiency, and also reducing the complexity of the compensation processing and improving the accuracy of the compensation processing.

[0120] In some scenarios, the target area can be any number of subdivided regions within the image area. The following describes the process of determining whether the original compensation signal of each pixel circuit meets the compensation termination condition based on each first driving current in this case. In one embodiment, if there are multiple target areas, such as... Figure 5 As shown, the step in S220 above, which determines whether the original compensation signal of each pixel circuit meets the compensation termination condition based on each first driving current, can be implemented in the following way:

[0121] S223. Obtain the second difference value between the first signal information corresponding to each pair of 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 each pair of target pixel circuits within the target area. Optionally, the second difference value can be a value obtained after performing arithmetic processing and / or comparison processing on the first signal information corresponding to each pair of target pixel circuits; the arithmetic processing can be implemented by at least one of multiplication, division, logarithmic, exponential, etc.

[0123] S224. 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 based on 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" refers to the situation where 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 The image shows the five target areas corresponding to the display panel (such as 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 can be obtained based on the first signal information corresponding to each target pixel circuit within the target area.

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

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

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

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

[0131] S225. If the third difference value between any two statistical signal information is less than or equal to the third difference value threshold, then each first signal information is determined to meet the compensation termination condition.

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

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

[0134] In addition, the processing chip can also perform comparative processing and arithmetic operations on each second difference value (or preset difference value) corresponding to each target region and each statistical signal information corresponding to each target region, and then determine whether each first signal information meets the compensation termination condition based on the processing result.

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

[0136] In this embodiment of the application, it can be determined whether each second difference value corresponding to each target region is less than or equal to the second difference value threshold, and whether the third difference value between statistical signal information corresponding to any two target regions is less than or equal to the third difference value threshold. If the third difference value between statistical signal information corresponding to any two target regions is less than or equal to the third difference value threshold, it can be determined that each first signal information satisfies the compensation termination condition.

[0137] It should be noted here that determining 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, both the second and third difference value thresholds can be determined based on historical experience or user-defined values; this embodiment does not limit their determination in this regard. Furthermore, both the second and third difference value thresholds can be equal to 0 or values ​​close to 0; this embodiment does not limit their determination in this regard either. The second and third difference value thresholds can be equal to or different from the first difference value threshold.

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

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

[0141] The technical solution in this application embodiment obtains a second difference value between the first signal information corresponding to each pair of target pixel circuits within each target region. If each second difference value is less than or equal to a second difference value threshold, statistical signal information corresponding to each target region is obtained based on each first signal information. If a third difference value between any two statistical signal information is less than or equal to a third difference value threshold, it is determined that each first signal information meets the compensation termination condition. In the case of initial determination that the compensation termination condition is not met, the above method can further determine whether each first signal information meets the compensation termination condition by using the difference value calculated from the first signal information and the relationship between the relevant signal information and the corresponding difference value threshold. This improves the accuracy of the compensation processing result. Furthermore, this process does not require complex algorithms and is relatively simple, thus reducing the complexity of determining whether each first signal information meets the compensation termination condition and accelerating the determination process. Additionally, the above method can set multiple target regions, which improves the accuracy of determining whether each first signal information meets the compensation termination condition compared to a single target region. Moreover, the above method is applicable to scenarios with multiple target regions, thereby increasing the application scenarios for determining whether the compensation processing effect achieves the target effect.

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

[0143] S400. If the compensation termination condition is not met for each of the first signal information, the voltage threshold of the driving transistor in each pixel circuit is compensated according to each of the first signal information to obtain the second signal information of each target pixel circuit; each of the second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after the compensation processing.

[0144] In practical applications, for any pixel circuit, the processing chip can perform compensation processing on the voltage threshold of the driving transistor TR1 in the pixel circuit of 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. The compensation processing model compensates for 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 above-mentioned compensation processing model can be implemented by at least one of the following: convolutional neural network model, fully connected neural network model, long short-term memory neural network model, recurrent recurrent neural network model, etc.

[0146] In another embodiment, the processing chip can further obtain the identifier corresponding to each target region, look up the identifier of each target region and the identifier of each target pixel circuit in the mapping table, and obtain the signal information that matches the identifier of each target region and the identifier of each target pixel circuit in the mapping table to determine the second signal information of each target pixel circuit. Optionally, the above mapping table may include a one-to-one correspondence between different pixel circuit identifiers, different region identifiers, and different signal information.

[0147] In the embodiments of this 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 the compensation termination condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0149] Specifically, the processing chip can detect whether each second signal information meets the compensation termination condition. If each second signal information meets the compensation termination condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0150] The process of detecting whether each second signal information meets the compensation termination condition is similar to the process of step S200 above, except that the first signal information is replaced with the second signal information. This embodiment will not be described in detail here.

[0151] In the technical solution of this application embodiment, when the first signal information does not meet the compensation termination condition, the voltage threshold of the driving transistor in each pixel circuit is compensated according to the first signal information to obtain the second signal information of each target pixel circuit. When the second signal information meets the compensation termination condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit. The second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after the compensation processing. When the above method determines that the first signal information does not meet the compensation termination condition, the voltage threshold of the driving transistor in each pixel circuit in the display panel can continue to be compensated to ensure that the compensation termination condition is met after multiple compensation processes, thereby improving the accuracy of the compensation processing result and making the output image of the display panel more uniform.

[0152] In one embodiment, such as Figure 8 As shown, the step in S400 above, which compensates the voltage threshold of the driving transistor in each pixel circuit based on each first signal information to obtain the second signal information of each target pixel circuit, can be implemented in the following way:

[0153] S410. Determine the compensation parameters corresponding to each pixel circuit based on 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 aforementioned driving transistor TR1 th This can be predicted based on the historical voltage threshold of the driving transistor TR1 and its current parameters. The current parameters of the driving transistor TR1 may include current amplification factor, power dissipation, frequency characteristics, maximum collector current, maximum reverse voltage, and reverse current. The actual voltage threshold ΔV of the driving transistor TR1 mentioned above... th Alternatively, it can be calculated by weighted summation or averaging based on the historical voltage thresholds of the driving transistor TR1 within a historical time period.

[0156] In this embodiment, the signal information corresponding to each pixel circuit can be determined based on the first signal information corresponding to each target pixel circuit, and then the compensation parameters corresponding to each pixel circuit can be determined based on 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 non-target pixel circuits.

[0157] Furthermore, for any given pixel circuit, the processing chip can obtain the corresponding compensation parameters for that pixel circuit based on its signal information. This can be achieved by comparing, analyzing, and searching the signal information corresponding to the pixel circuit to obtain the appropriate compensation parameters.

[0158] S420. Based on the compensation parameters and the original compensation signals of each pixel circuit, determine the candidate compensation signals for each pixel circuit.

[0159] In the embodiments of this 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, that is, Vdata' = Vdata + Vth2.

[0160] In practical applications, the processing chip can send the candidate compensation signal Vdata' of each pixel circuit to the client device, instructing the user to adjust the input signal of each pixel circuit 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. Determine the second signal information of each target pixel circuit based on the candidate compensation signals of each pixel circuit.

[0162] The second signal information of the target pixel circuit can also be voltage signal information, but in this embodiment, the second signal information of the target pixel circuit can 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 to the pixel circuit and the pixel circuit is in 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 using the formula Q=I*t=C*Vout based on the output voltage Vout, the capacitance C of the capacitor in the detection circuit and the duration t corresponding to the detection period T2.

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

[0165] The process of determining the compensation parameters corresponding to each pixel circuit based on each first signal information is described below. In one embodiment, the step of determining the compensation parameters corresponding to each pixel circuit based on each first signal information in S430 above may include: searching for signal information that matches each first signal information in a pre-built 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 information table mentioned above is pre-constructed based on simulation results and may include the correspondence between different signal information and different compensation parameters.

[0167] Specifically, the first signal information corresponding to each target pixel circuit can be found in a pre-built information table, and the compensation parameters corresponding to each first signal information found in the information table can be used as the compensation parameters corresponding to each pixel circuit.

[0168] The technical solution in this application embodiment searches for signal information that matches 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 through a pre-constructed information table, and the processing process is relatively simple, which can improve the speed and efficiency of determining compensation parameters. At the same time, the above method does not require manual intervention, thereby reducing human error and improving the accuracy of the determined compensation parameters.

[0169] In some scenarios, after determining the candidate compensation signals for each pixel circuit, it is necessary to determine whether the candidate compensation signals for each pixel circuit meet the compensation termination condition. The determination process is described below. In one embodiment, as... Figure 9 As shown, after performing the steps in S420 above, the method may further include the following steps:

[0170] S440. After determining each candidate compensation signal, increase the size of each target region to obtain the corresponding adjustment region.

[0171] Specifically, after determining the candidate compensation signals for each pixel circuit, and given the determination of each candidate compensation signal, the processing chip can increase the size of each target area to obtain the corresponding adjustment area.

[0172] In this embodiment, the size of each target region is increased, i.e., the area is increased, to complete the adjustment of each target region. The sum of the areas of all adjusted target regions can be less than or equal to the area of ​​the screen area, and there is no overlap between the adjusted target regions.

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

[0174] In this embodiment, each pixel circuit within the adjustment area is referred to as an adjustment pixel circuit. The third signal information of the aforementioned adjustment pixel circuit can also be voltage signal information; however, in this embodiment, the third signal information of the aforementioned adjustment pixel circuit can be the third driving current Id3 of the driving transistor TR1 in the adjustment pixel circuit.

[0175] Furthermore, based on the acquired adjustment areas, the third signal information of each adjustment pixel circuit within each adjustment area can be obtained. This 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 meets the compensation termination condition.

[0177] Specifically, the processing chip can determine whether the third signal information of each adjustment pixel circuit meets the compensation termination condition based on the third signal information of each adjustment pixel circuit. The specific detection process in S460 is similar to that in S200, except that the first signal information is replaced with the third signal information; therefore, this embodiment will not elaborate further.

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

[0179] S470. If the condition is met, the compensation process ends; 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.

[0180] Furthermore, if it is determined that each third signal information meets the compensation termination condition, each candidate compensation signal is determined as the target compensation signal of each pixel circuit, and the compensation process ends. Otherwise, the size of each adjustment area is continuously increased, and the compensation process continues until the signal information corresponding to each adjustment pixel circuit obtained after multiple compensation processes meets the compensation termination condition.

[0181] It should be noted that after each compensation process, the size of each adjustment area obtained in the previous step can be increased, and the detection operation can be performed based on the increased adjustment areas.

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

[0183] (1) When the original input signal is input to each pixel circuit in the display panel, the driving current Id1 of each driving transistor TR1 in each pixel circuit is obtained; the original input signal is the input signal of each pixel circuit under the condition of no compensation processing;

[0184] (2) Find the signal information that matches each driving current Id1 in the information table, and determine the compensation parameter corresponding to each matched signal information as the ΔV corresponding to each pixel circuit. th1 ;

[0185] (3) For each pixel circuit, the corresponding ΔV th1 The original input signal Vdata of each pixel circuit is summed to obtain the current input signal Vdata' of each pixel circuit, and the signal of each Vdata' magnitude is input to each pixel circuit to compensate the voltage threshold of the driving transistor TR1 in each pixel circuit.

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

[0187] (5) Divide the display panel into 5 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). For each pixel block region, compare the driving current Id2 of each driving transistor TR1 in each target pixel circuit within the pixel block region.

[0188] (6) If at least one pixel block region in each pixel block region does not satisfy that the driving current Id2 of each driving transistor TR1 in each target pixel circuit in each pixel block region is equal, or if at least one of the differences between the driving current Id2 of the driving transistor TR1 of each pair of target pixel circuits in any pixel block region of at least one pixel block region in the five pixel block regions is greater than or equal to a preset difference threshold, then return 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 region is equal, or the difference between the driving current Id2 of each pair of target pixel circuits in any pixel block region is within the preset difference threshold range, then the statistical determination current Id corresponding to the target region is obtained according to the driving current Id2 of each target pixel circuit in each pixel block region.

[0190] (8) If the statistically determined current Id corresponding to the five pixel block regions are all equal or the difference between the statistically determined current Id of each pair falls within a certain value range, then the driving current Id2 of each driving transistor TR1 in each pixel circuit is determined to meet the compensation termination condition, and the compensation process ends.

[0191] (9) If at least two of the statistically determined currents Id corresponding to the five pixel block regions are not equal, the size of each pixel block is increased to obtain the corresponding adjustment area, and the driving current Id2 of the driving transistor TR1 in each pixel circuit is taken as the driving current Id1 of the driving transistor TR1 in each pixel circuit. The five pixel block regions that are increased are taken as the five pixel block regions selected for the next processing. Steps (2)-(9) are repeated. That is, if the termination compensation process of step (8) is not satisfied, the size of the five pixel block regions selected in the next execution of steps (2)-(9) is larger than the pixel block regions selected in the current time.

[0192] The technical solution in this application embodiment, after determining each candidate compensation signal, increases the size of each target region to obtain the corresponding adjustment region, obtains the third signal information of each adjustment pixel circuit within each adjustment region, and detects whether each third signal information meets the compensation termination condition. If it does, the compensation process ends; otherwise, the size of each target region is continuously increased until the signal information corresponding to each adjustment pixel circuit meets the compensation termination condition. After the compensation process, the above method can obtain the corresponding adjustment region by increasing the size of each target region, and determine whether the compensation termination condition is met based on each adjustment region, so as to avoid the situation where the compensation process stops due to the failure to meet the compensation termination condition, thereby improving the accuracy of the compensation process. Moreover, this process does not require the participation of complex algorithms, thereby reducing the complexity of the compensation process and improving the speed and efficiency of the compensation process.

[0193] Another embodiment provides a display method applied to a display panel, the display panel including a plurality of pixel circuits, the method comprising:

[0194] The corresponding display image is output based on the target compensation signals input to each pixel circuit; the target compensation signals for each pixel circuit are based on... Figure 2 , 4 -5 and Figures 7-9 The steps of the method in any of the embodiments are determined.

[0195] The compensation processing method provided in the embodiments of this application can be used to execute the above-described embodiments of this application. Figure 2 , 4 -5 and Figures 7-9 The technical solutions in the compensation processing method embodiments are similar in principle and technical effect, and will not be described again here.

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

[0197] S10. Obtain at least one target area in the screen area of ​​the display panel, and obtain first signal information corresponding to each target pixel circuit in each target area. 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 screen 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. Detect whether each first signal information meets the preset compensation termination condition;

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

[0200] The first method, if the target area is a single region, includes:

[0201] S111. Obtain the first difference value between each pair of first signal information in each first signal information; the first signal information includes the driving current, and the first difference value includes the driving current difference.

[0202] S112. If each first difference value is less than or equal to the first difference value threshold, then each first signal information is determined to meet the compensation termination condition; otherwise, each first signal information is determined not to meet the compensation termination condition; the first difference value threshold is 0.

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

[0204] S114. Obtain the second difference value between the first signal information corresponding to the pairwise 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, then 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, then each first signal information is determined to meet the compensation termination condition; if the third difference value between any two statistical signal information is greater than or equal to the third difference value threshold, then each first signal information is determined not to meet the compensation termination 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, then it is determined that each first signal information does not meet the compensation termination condition.

[0207] S12. If the compensation termination condition is not met for each of the first signal information, search for the signal information that matches each of the first signal information in the pre-built information table, and determine 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. Based on each compensation parameter and the original compensation signal of each pixel circuit, determine the candidate compensation signal for each pixel circuit.

[0209] S14. Determine the second signal information of each target pixel circuit based on the candidate compensation signals of each pixel circuit; each second signal information is determined based on the candidate compensation signals of each pixel circuit obtained after compensation processing.

[0210] S15. When each second signal information satisfies the compensation termination condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit.

[0211] S16. If the compensation termination condition is not met for each of the second signal information, the size of each target area is increased to obtain the corresponding adjustment area;

[0212] S17. Obtain the third signal information corresponding to each adjustment pixel circuit in each adjustment area;

[0213] S18. Detect whether each third signal information meets the compensation termination condition;

[0214] S19. If the condition is met, the compensation process ends; 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.

[0215] The specific execution process of S10 to S19 can be found in the description of the above embodiments. The implementation principle and technical effect are similar, and will not be repeated here.

[0216] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0217] Based on the same inventive concept, this application also provides a compensation processing apparatus for implementing the compensation processing method described above. The solution provided by this apparatus is similar to the implementation scheme described in the above method; therefore, the specific limitations in one or more compensation processing apparatus embodiments provided below can be found in the limitations of the compensation processing method described above, and will not be repeated here.

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

[0219] The acquisition module 11 is used to acquire at least one target area in the screen area of ​​the display panel, and to acquire the first signal information corresponding to each target pixel circuit in each target area. 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 screen area, and different target areas do not overlap.

[0220] The detection module 12 is used to detect whether each first signal information meets the preset compensation termination condition;

[0221] The first determining module 13 is used to determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit when the detection module ends.

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

[0223] The compensation processing device provided in this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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 region, the detection module 12 includes: a first acquisition unit and a first determination unit, wherein,

[0225] The first acquisition unit is used to acquire the first difference value between each pair of first signal information in each first signal information;

[0226] The first determining unit is configured to determine that each first signal information satisfies the compensation termination condition if each first difference value is less than or equal to a first difference value threshold; otherwise, it determines that each first signal information does not satisfy the compensation termination condition; the first difference value threshold is 0.

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

[0228] The compensation processing device provided in this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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 region, the detection module 12 includes a search unit, wherein:

[0230] The search unit is used to determine that each first signal information meets the compensation termination condition if all first signal information is within a preset range of first signal information; otherwise, it determines that each first signal information does not meet the compensation termination condition.

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

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

[0233] The second acquisition unit is used to acquire the second difference value between the first signal information corresponding to the pair of target pixel circuits in each target area;

[0234] The third acquisition unit is used to acquire statistical signal information corresponding to each target area based on each first signal information when each second difference value is less than or equal to the second difference value threshold.

[0235] The second determining unit is used to determine that each first signal information satisfies the compensation termination condition when the third difference value between any two statistical signal information is less than or equal to the third difference value threshold.

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

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

[0238] The compensation processing device provided in this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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 determining unit, wherein:

[0240] The third determining unit is used to determine that each first signal information does not meet the compensation termination 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 this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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 determining unit, wherein:

[0243] The fourth determining unit is used to determine that each first signal information does not meet the compensation termination 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 this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this application. Its implementation principle and technical effect are similar, and will not be repeated here.

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

[0246] The compensation processing module is used to perform compensation processing on the voltage threshold of the driving transistor in each pixel circuit according to each first signal information when the compensation termination condition is not met, and to obtain the second signal information of each target pixel circuit; each second signal information is determined based on the candidate compensation signals of each pixel circuit obtained after the compensation processing.

[0247] The second determining 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 termination condition.

[0248] The compensation processing device provided in this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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 determining unit, a sixth determining unit, and a seventh determining unit, wherein:

[0250] The fifth determining unit is used to determine the compensation parameters corresponding to each pixel circuit based on each first signal information.

[0251] The sixth determining unit is used to determine the candidate compensation signal for each pixel circuit based on each compensation parameter and the original compensation signal of each pixel circuit.

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

[0253] The compensation processing device provided in this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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 used for:

[0255] The system searches for signal information that matches each first signal information in a pre-built information table, and determines 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.

[0256] The compensation processing device provided in this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this 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] The adjustment unit is used to increase the size of each target region after determining each candidate compensation signal, so as to obtain the corresponding adjustment region;

[0259] The third acquisition unit is used to acquire the third signal information corresponding to each adjustment pixel circuit in each adjustment area;

[0260] The detection unit is used to detect whether each third signal information meets the compensation termination condition;

[0261] The seventh determining unit is used to end the compensation process if the condition is 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 this application embodiment can be used to execute the technical solutions in the above-described compensation processing method embodiments of this application. Its implementation principle and technical effect are similar, and will not be repeated here.

[0263] For specific limitations regarding the compensation processing device, please refer to the limitations of the compensation processing method above, which will not be repeated here. Each module in the aforementioned compensation processing device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of the processing chip in hardware form or independently of it, or they can be stored in the memory of the processing chip in software form, so that the processor can call and execute the operations corresponding to each module.

[0264] In one embodiment, a computer device is also provided, the internal structure of which can be as follows: Figure 11As shown, the computer device includes a processing chip, a processor connected via a system bus, memory, and a network interface. The processing chip provides processing power. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage medium. The computer device's database stores pre-built information tables. The network interface is used to communicate with external endpoints via a network connection. When the computer program is executed by the processing chip, it implements a compensation processing method.

[0265] Those skilled in the art will understand that Figure 11 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0266] In one embodiment, a computer device is also provided, including a processing chip, a memory, and a processor, wherein the memory stores a computer program, and the processing chip executes the computer program to perform the following steps:

[0267] At least one target area in the screen area of ​​the display panel is obtained, and first signal information corresponding to each target pixel circuit in each target area is obtained. 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 screen area, and different target areas do not overlap.

[0268] Detect whether each first signal information meets the preset compensation termination 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 also provided, on which a computer program is stored, which, when executed by a processing chip, performs the following steps:

[0271] At least one target area in the screen area of ​​the display panel is obtained, and first signal information corresponding to each target pixel circuit in each target area is obtained. 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 screen area, and different target areas do not overlap.

[0272] Detect whether each first signal information meets the preset compensation termination 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 that, when executed by a processing chip, performs the following steps:

[0275] At least one target area in the screen area of ​​the display panel is obtained, and first signal information corresponding to each target pixel circuit in each target area is obtained. 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 screen area, and different target areas do not overlap.

[0276] Detect whether each first signal information meets the preset compensation termination 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 skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, 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 storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0279] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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 embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A compensation processing method, characterized in that, The method includes: At least one target area in the screen area of ​​the display panel is obtained, and first signal information corresponding to each target pixel circuit in each target area is obtained. 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 screen area, and different target areas do not overlap. Detect whether each of the first signal information meets the preset compensation termination condition; If the first signal information does not meet the compensation termination condition, the voltage threshold of the driving transistor in each pixel circuit is compensated according to the first signal information to obtain the 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; if the second signal information meets the compensation termination condition, the candidate compensation signal of each pixel circuit is determined as the target compensation signal of each pixel circuit. When each of the first signal information satisfies the compensation termination condition, 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 the target region is a single region, then detecting whether each of the first signal information satisfies the preset compensation termination condition includes: Obtain the first difference value between each pair 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, then each of the first signal information is determined to meet the compensation termination condition; otherwise, it is determined that each of the first signal information does not meet the compensation termination condition.

3. The method according to claim 2, characterized in that, The first signal information includes the drive current, and the first difference value includes the difference in drive current.

4. The method according to claim 2, characterized in that, The first difference threshold is 0.

5. The method according to claim 1, characterized in that, If the target region is a single region, then detecting whether each of the first signal information satisfies the preset compensation termination condition includes: If each of the first signal information is within the preset range of first signal information, then it is determined that each of the first signal information satisfies the compensation termination condition; otherwise, it is determined that each of the first signal information does not satisfy the compensation termination condition.

6. The method according to claim 1, characterized in that, If there are multiple target regions, then detecting whether each of the first signal information meets the preset compensation termination condition includes: Obtain the second difference value between the first signal information corresponding to each pair of target pixel circuits within each target region; If each of the second difference values ​​is less than or equal to the second difference value threshold, then the statistical signal information corresponding to each of the target regions is obtained based on 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, then each of the first signal information is determined to satisfy the compensation termination condition.

7. The method according to claim 6, characterized in that, The method further includes: If at least one of the second difference values ​​is greater than or equal to the second difference value threshold, then it is determined that each of the first signal information does not meet the compensation termination condition.

8. The method according to claim 7, characterized in that, The second difference threshold is 0.

9. The method according to claim 6, characterized in that, The method further includes: If the third difference value between any two statistical signal information is greater than or equal to the third difference value threshold, then it is determined that each of the first signal information does not meet the compensation termination condition.

10. The method according to claim 9, characterized in that, The third difference threshold is 0.

11. The method according to any one of claims 1-10, characterized in that, The step of compensating the voltage threshold of the driving transistors in each pixel circuit of the display panel according to each of the first signal information, and obtaining the second signal information of each of the target pixel circuits, includes: Based on each of the first signal information, the compensation parameters corresponding to each pixel circuit are determined; Based on the compensation parameters and the original compensation signals of each pixel circuit, a candidate compensation signal for each pixel circuit is determined. The second signal information of each target pixel circuit is determined based on the candidate compensation signal of each pixel circuit.

12. The method according to claim 11, characterized in that, The step of determining the compensation parameters corresponding to each pixel circuit based on each of the first signal information includes: The information table is pre-built to find the signal information that matches each of the first signal information, 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.

13. The method according to any one of claims 1-10, characterized in that, The current input signal of each pixel circuit is determined based on the original input signal of each pixel circuit before compensation processing; the method further includes: Once the candidate compensation signals for each pixel circuit are determined, the size of each target region is increased to obtain the corresponding adjustment region; Obtain the third signal information corresponding to each adjustment pixel circuit within each adjustment region; Detect whether each of the third signal information satisfies the compensation termination condition; If the condition is met, the compensation process ends; otherwise, the size of each adjustment region is continuously increased until the signal information corresponding to each adjustment pixel circuit meets the compensation termination condition.

14. A display method, characterized in that, Applied to a display panel, the display panel including multiple pixel circuits, the method includes: The corresponding display screen is output according to the target compensation signal of each of the input pixel circuits; the target compensation signal of each pixel circuit is determined according to the steps of the method as described in any one of claims 1-13.

15. A compensation processing device, characterized in that, The device includes: The acquisition module is used to acquire at least one target area in the screen area of ​​the display panel, and to acquire first signal information corresponding to each target pixel circuit in each target area. 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 screen area, and different target areas do not overlap. The detection module is used to detect whether each of the first signal information meets the preset compensation termination condition; A first determining module is configured to, when the detection module is not terminated, perform compensation processing on the voltage threshold of the driving transistor in each pixel circuit according to each of the first signal information, and obtain second signal information of each target pixel circuit; each of the second signal information is determined based on the candidate compensation signal of each pixel circuit obtained after the compensation processing; when each of the second signal information satisfies the compensation termination condition, determine the candidate compensation signal of each pixel circuit as the target compensation signal of each pixel circuit; when the detection module is terminated, determine the current input signal of each pixel circuit as the target compensation signal of each pixel circuit.

16. A display device, characterized in that, The device includes: The image output module is used to output a corresponding display image based on the target compensation signal of each input pixel circuit; the target compensation signal of each pixel circuit is determined according to the steps of the method as described in any one of claims 1-13.

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