Voltage compensation method and device for display panel, display device and display terminal

Abstract

This application provides a voltage compensation method, apparatus, display device, and display terminal for a display panel. The voltage compensation method includes: determining the in-plane equivalent total current of a target display panel; and determining the resistance corresponding to the pixel to be compensated within the target display panel. The in-plane equivalent total current represents the sum of the equivalent currents of all pixels in the target display panel. Based on the in-plane equivalent total current and the resistance of the pixel to be compensated, a resistance voltage drop compensation amount is determined for the pixel to be compensated. A threshold voltage compensation amount is obtained for the pixel to be compensated. Voltage compensation is performed on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount. This application's solution can simultaneously compensate for the voltage drop caused by current flowing through the resistance and the difference in threshold voltage among the pixels, thereby improving the brightness uniformity of the display panel, reducing color differences, and improving the display effect.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a voltage compensation method, apparatus, display device, and display terminal for a display panel. Background Technology

[0002] Organic light-emitting diode (OLED) and flat panel display devices based on light-emitting diode (LED) technologies are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the Invention

[0004] In view of the above, embodiments of this application provide a voltage compensation method, apparatus, display device, and display terminal for a display panel, so as to at least partially solve the above problems.

[0005] According to a first aspect of the embodiments of this application, a voltage compensation method for a display panel is provided, comprising: determining the in-plane equivalent total current of a target display panel, and determining the resistance corresponding to a pixel to be compensated within the target display panel; the in-plane equivalent total current characterizes the sum of the equivalent currents of each pixel in the target display panel; determining a resistance voltage drop compensation amount corresponding to the pixel to be compensated based on the in-plane equivalent total current and the resistance of the pixel to be compensated; obtaining a threshold voltage compensation amount corresponding to the pixel to be compensated; and performing voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

[0006] According to a second aspect of the embodiments of this application, a voltage compensation device for a display panel is provided, comprising: a parameter determination module, configured to determine the in-plane equivalent total current of a target display panel, and to determine the resistance corresponding to a pixel to be compensated within the target display panel; the in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel; a first calculation module, configured to determine a resistance voltage drop compensation amount corresponding to the pixel to be compensated based on the in-plane equivalent total current and the resistance of the pixel to be compensated; an acquisition module, configured to acquire a threshold voltage compensation amount corresponding to the pixel to be compensated; and a second calculation module, configured to perform voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

[0007] According to a third aspect of the present application, a display device is provided, comprising: a display panel; a computer storage medium configured to store computer program instructions for performing the voltage compensation method as described in the first aspect; and a processor configured to execute the computer program instructions to cause the display panel to perform voltage compensation.

[0008] According to a fourth aspect of the embodiments of this application, a display terminal is provided, the display terminal including a terminal device body and a display device as described in the third aspect disposed on the terminal device body.

[0009] According to a fifth aspect of the present application, an electronic device is provided, comprising: a processor, a memory, a communication interface, and a communication bus, wherein the processor, the memory, and the communication interface communicate with each other via the communication bus; the memory is used to store at least one executable instruction, wherein the executable instruction causes the processor to perform an operation corresponding to the method described in the first aspect.

[0010] According to a sixth aspect of the embodiments of this application, a computer storage medium is provided that stores a computer program thereon, which, when executed by a processor, implements the method described in the first aspect.

[0011] According to a seventh aspect of the embodiments of this application, a computer program product is provided, including computer instructions that instruct a computing device to perform an operation corresponding to the method described in the first aspect.

[0012] According to the voltage compensation method, apparatus, display device, and display terminal of the display panel provided in the embodiments of this application, the voltage compensation method of the display panel includes: determining the in-plane equivalent total current of the target display panel, and determining the resistance corresponding to the pixel to be compensated in the target display panel; the in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel; determining the resistance voltage drop compensation amount corresponding to the pixel to be compensated based on the in-plane equivalent total current and the resistance of the pixel to be compensated; obtaining the threshold voltage compensation amount corresponding to the pixel to be compensated; and performing voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount. The solution of this application can simultaneously compensate for the voltage drop caused by current flowing through the resistor and the difference in the threshold voltage of the pixel. By compensating for the voltage drop caused by current flowing through the resistor, the brightness uniformity of the display panel in displaying high grayscale images can be guaranteed, and by compensating for the difference in the threshold voltage of the pixel, the brightness uniformity of the display panel in displaying low grayscale images can be guaranteed. Therefore, the solution of this embodiment can improve the brightness uniformity of the display panel in displaying the entire grayscale range, thereby reducing the color difference of the display panel and improving the display effect of the display panel. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a flowchart illustrating the steps of a voltage compensation method according to an embodiment of this application.

[0015] Figure 2A and 2B This is a schematic diagram of a voltage compensation method according to an embodiment of this application;

[0016] Figure 3 This is a structural block diagram of a voltage compensation device according to an embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the structure of a display terminal according to an embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in the embodiments of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art should fall within the protection scope of the embodiments of this application.

[0020] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in the embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0021] It should be understood that in the description of the embodiments of this application, the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the scheme of the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0022] Furthermore, when an element or layer is referred to as being "on" another element or layer, "connected to," or "bonded to" another element or layer, the element or layer may be directly on the other element or layer, directly connected to, or directly bonded to the other element or layer, or there may be intermediate elements or layers. However, when an element or layer is referred to as being "directly on" another element or layer, "directly connected to," or "directly bonded to" another element or layer, there are no intermediate elements or layers.

[0023] The terms first, second, etc., are used to describe various elements, components, pixels, layers, and / or portions, but these elements, components, pixels, layers, and / or portions should not be limited by these terms. These terms are used to distinguish one element, component, pixel, layer, and / or portion from another element, component, pixel, layer, and / or portion.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The specific implementation of the embodiments of this application will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a flowchart illustrating the steps of a voltage compensation method for a display panel according to an embodiment of this application. According to a first aspect of this application, a voltage compensation method for a display panel is provided, referring to… Figure 1 As shown, the method includes steps S102, S104, and S106, specifically:

[0027] S102. Determine the in-plane equivalent total current of the target display panel, and determine the resistance corresponding to the pixel to be compensated within the target display panel.

[0028] Among them, the in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel.

[0029] For example, the target display panel can be an OLED display panel, which is an organic light-emitting diode display panel. An OLED can be composed of a substrate, an anode, a hole transport layer, an organic light-emitting layer, an electron transport layer, and a cathode. The substrate is usually made of materials such as glass or flexible plastic, providing support for the entire device; the anode is generally made of a transparent conductive material (such as indium tin oxide, ITO) for injecting holes; the hole transport layer helps holes to be transported smoothly to the organic light-emitting layer; the organic light-emitting layer is the core part, composed of various organic materials, and different organic materials can emit different colors of light, that is, the organic light-emitting layer can include multiple pixels; the electron transport layer is responsible for transferring electrons to the organic light-emitting layer; and the cathode is used for injecting electrons.

[0030] Equivalent current refers to a hypothetical current with a certain equivalent effect used to replace a more complex actual current in a specific circuit analysis or physical context for the purpose of convenient research, calculation, or equivalent substitution. The effect of this equivalent current is equivalent to that of the replaced current in the corresponding aspects. Therefore, in this embodiment, the equivalent current of each pixel in the target display panel can be determined. By summing the equivalent currents of each pixel, the total in-plane equivalent current of the target display panel can be obtained. Each pixel includes sub-pixels corresponding to three color channels, and the equivalent current of each pixel includes the equivalent current of each sub-pixel.

[0031] The pixel to be compensated can be any pixel in the target display panel; this embodiment does not impose any restrictions. Since each pixel in the target display panel corresponds to a different resistance, the target display panel can be pre-divided into regions, and at least one pixel can be determined from each region, resulting in multiple pixels. Then, the resistances corresponding to these multiple pixels can be obtained and stored through calibration or other methods; this embodiment does not impose any restrictions on this. When performing voltage compensation, the resistance corresponding to the pixel to be compensated can be determined from the pre-stored resistances of all pixels, or the resistance corresponding to the pixel to be compensated can be calculated from the resistances of some pixels; this embodiment does not impose any restrictions on this.

[0032] In some optional embodiments, determining the in-plane equivalent total current of the target display panel includes: acquiring the data voltage input to each pixel in the target display panel; determining the equivalent current of each pixel from a preset relationship table based on the data voltage of each pixel, the preset relationship table including the correspondence between different data voltages and equivalent currents; summing the equivalent currents of each pixel to obtain the in-plane equivalent total current of the target display panel.

[0033] For example, data voltage refers to the voltage signal provided by the driving circuit to each pixel in the display panel. Its main function is to control the display state of the pixels, thereby affecting the image content displayed by the entire display panel. In the driving circuit of the display panel, thin-film transistors (TFTs) are typically used to control the current of each pixel. Data voltage can be applied to the gate of the TFT, and by changing the conduction level of the TFT, the magnitude of the current from the source to the drain is controlled, thereby controlling the brightness of the pixel. Generally speaking, the higher the data voltage, the greater the conduction level of the TFT, the greater the current through the pixel, and the brighter the pixel emits light. Different data voltages can make the pixels display different grayscale levels. By controlling the magnitude of the data voltage, various grayscale displays ranging from the darkest black to the brightest white can be achieved.

[0034] In this embodiment, the data voltage input to each pixel within the target display panel can be obtained first. The data voltage of each pixel includes the data voltage of the sub-pixels contained within each pixel. Then, based on the data voltage of each pixel, the equivalent current of each pixel is looked up from a preset relationship table. Here, refer to... Figure 2A The preset relationship table can include the correspondence between different data voltages and equivalent currents. This table is generated by pre-measuring the total current within the target display panel under different data voltages, inputting them into the panel, and then determining the equivalent current for each pixel under different data voltages using the total current and the number of pixels in the panel. Finally, the preset relationship table is generated by combining the different data voltages and corresponding equivalent currents for each pixel. For the same data voltage, the equivalent current is the same for each pixel. After obtaining the equivalent current of each pixel, summing the equivalent currents of all pixels yields the in-plane equivalent total current of the target display panel.

[0035] In this embodiment, the equivalent current of each pixel is determined from a preset relationship table using the input data voltage of each pixel. Then, the equivalent currents of each pixel are summed to obtain the total in-plane equivalent current of the target display panel. The calculation process is simple and efficient. Furthermore, this embodiment can quickly calculate the total in-plane equivalent current of the entire target display panel without needing to calculate the equivalent current by region, making the processing simple and efficient.

[0036] In some optional embodiments, determining the in-plane equivalent total current of the target display panel includes: determining the in-plane equivalent total current corresponding to the current frame image displayed by the target display panel; or, determining the in-plane equivalent total current corresponding to the previous frame image displayed by the target display panel; and performing voltage compensation on the pixels to be compensated based on the resistor voltage drop compensation amount and the threshold voltage compensation amount, including: performing voltage compensation on the pixels to be compensated corresponding to the current frame image based on the resistor voltage drop compensation amount and the threshold voltage compensation amount.

[0037] For example, when determining the in-plane equivalent total current of the target display panel, one approach is to have an external processor communicatively connected to the target display panel calculate the in-plane equivalent total current. For instance, the external processor could be a mobile phone processor. The external processor can pre-obtain the data voltage required for the target display panel to display the current frame image, thereby determining the in-plane equivalent total current corresponding to the current frame image. Then, by sending the obtained in-plane equivalent total current to the target display panel, the target display panel can perform voltage compensation when displaying the current frame image, thereby improving the display effect of the current frame image.

[0038] Secondly, the in-plane equivalent total current can be calculated by the target display panel itself. However, after the target display panel displays the previous frame image, the in-plane equivalent total current corresponding to the previous frame image needs to be determined. Then, based on the obtained in-plane equivalent total current, voltage compensation is performed when the target display panel displays the current frame image, thereby improving the display effect of the current frame image.

[0039] In this embodiment, the in-plane equivalent total current corresponding to the current frame image displayed on the target display panel can be determined; or, the in-plane equivalent total current corresponding to the previous frame image displayed on the target display panel can be determined. Voltage compensation can be performed when the target display panel displays the current frame image. Different statistical methods for the in-plane equivalent total current can be applied according to different application scenarios.

[0040] S104. Based on the equivalent total current in the plane and the resistance of the pixel to be compensated, determine the resistance voltage drop compensation amount corresponding to the pixel to be compensated.

[0041] For example, the formula for calculating the resistance voltage drop compensation amount corresponding to the pixel to be compensated can be I*R. Where I is the in-plane equivalent total current, and R is the resistance of the pixel to be compensated. That is, the resistance voltage drop compensation amount corresponding to the pixel to be compensated can be obtained by multiplying the in-plane equivalent total current by the resistance of the pixel to be compensated.

[0042] S106. Obtain the threshold voltage compensation amount corresponding to the pixel to be compensated.

[0043] For example, each pixel can correspond to a threshold voltage. The threshold voltage of a pixel refers to the minimum voltage value required to make the pixel begin to produce a perceptible response (such as starting to emit light, changing its light transmission state, etc., depending on the working mechanism of the specific display technology). During the manufacturing process of the display panel, different process conditions, material properties, and production batches can all lead to differences in the threshold voltage of pixels. Because of these differences in threshold voltage, different pixels may exhibit different brightness or light transmission states under the same voltage, resulting in uneven display. In this embodiment, the differences in threshold voltage between pixels can be compensated by a threshold voltage compensation amount to improve display uniformity.

[0044] The threshold voltage compensation amount corresponding to the pixel to be compensated can be predetermined. Since the threshold voltage compensation amounts for each pixel in the target display panel are different, the threshold voltage compensation amounts corresponding to some or all pixels in the target display panel can be obtained through calibration or other methods and stored. This embodiment does not impose any restrictions on this. When performing voltage compensation, the threshold voltage compensation amount corresponding to the pixel to be compensated can be determined from the pre-stored threshold voltage compensation amounts corresponding to all pixels, or the threshold voltage compensation amount corresponding to the pixel to be compensated can be calculated from the threshold voltage compensation amounts corresponding to some pixels. This embodiment does not impose any restrictions on this.

[0045] S108. Perform voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

[0046] When a display panel is operating, a high-level power supply voltage (ELVDD) is typically used to provide the base power voltage to the pixels. The ELVDD is the base power supply voltage that provides the driving current to the driving circuitry in the display panel, ensuring sufficient energy to allow the pixels to emit light normally. However, due to the voltage drop caused by the resistance of the metal traces and the difference between the threshold voltages of each pixel, the current distribution among the pixels is uneven, resulting in uneven brightness. Therefore, the voltage compensation amount in this embodiment includes two parts: one is the resistance voltage drop compensation amount to compensate for the voltage drop caused by resistance, and the other is the threshold voltage compensation amount to compensate for the difference between the threshold voltages.

[0047] The formula for calculating the voltage compensation in this embodiment can be I*R+ΔV th Where I*R is the voltage drop compensation for the resistor, ΔV thThis is the threshold voltage compensation amount. For the pixel to be compensated, the resistor voltage drop compensation amount corresponding to the pixel to be compensated and the threshold voltage compensation amount can be summed to obtain the voltage compensation amount for the pixel to be compensated. Voltage compensation is then applied to the pixel to be compensated using this voltage compensation amount. This can be added to the initial data voltage corresponding to the pixel to be compensated (e.g., the initial data voltage corresponding to the current frame image) to obtain the target data voltage for the pixel to be compensated. Applying this target data voltage to the pixel will ensure that the brightness of the pixel to be compensated meets the brightness requirements. Alternatively, the high-level power supply voltage (ELVDD) of the pixel to be compensated can be adjusted based on the voltage compensation amount to achieve voltage compensation. Here, adjusting the high-level power supply voltage (ELVDD) reduces data processing and saves power consumption.

[0048] In one specific embodiment, the pixel to be compensated includes sub-pixels corresponding to three color channels (R, G, B), namely R sub-pixels, G sub-pixels, and B sub-pixels. In the process of calculating the resistance voltage drop compensation amount and threshold voltage compensation amount of the pixel to be compensated by the above method, the resistance corresponding to each sub-pixel in the pixel to be compensated can be determined, and the threshold voltage compensation amount corresponding to each sub-pixel in the pixel to be compensated can be obtained. Then, based on the in-plane equivalent total current and the resistance corresponding to each sub-pixel in the pixel to be compensated, the resistance voltage drop compensation amount corresponding to each sub-pixel is calculated. Based on the resistance voltage drop compensation amount and the threshold voltage compensation amount corresponding to each sub-pixel, voltage compensation can be performed on each sub-pixel in the pixel to be compensated.

[0049] In some optional embodiments, in step S102, determining the resistance corresponding to the pixel to be compensated within the target display panel includes: acquiring pre-calibrated calibration resistors corresponding to multiple target pixels within the target display panel; and determining the resistance corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels. Then, in step S106, obtaining the threshold voltage compensation amount corresponding to the pixel to be compensated includes: acquiring pre-calibrated calibration threshold voltage compensation amounts corresponding to multiple target pixels within the target display panel; and determining the threshold voltage compensation amount corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amounts corresponding to the multiple target pixels.

[0050] For example, the multiple target pixels can be M*N pixels within the target display panel. The specific pixel division can be flexibly set by those skilled in the art according to actual conditions, and this embodiment does not impose any limitations on this. The calibration resistors corresponding to the multiple target pixels can be pre-calibrated and stored. When determining the resistance corresponding to the pixel to be compensated, the calibration resistors corresponding to the multiple target pixels and the positional relationship between the multiple target pixels and the pixel to be compensated can be obtained. Then, based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels, the resistance corresponding to the pixel to be compensated is calculated. Similarly, the calibration threshold voltage compensation amounts corresponding to the multiple target pixels can be pre-calibrated and stored. When determining the threshold voltage compensation amount corresponding to the pixel to be compensated, the calibration threshold voltage compensation amounts corresponding to the multiple target pixels and the positional relationship between the multiple target pixels and the pixel to be compensated can be obtained. Then, based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amounts corresponding to the multiple target pixels, the calibration threshold voltage compensation amount corresponding to the pixel to be compensated is calculated.

[0051] In this embodiment, the resistance of the pixel to be compensated can be determined by using pre-calibrated calibration resistors corresponding to multiple target pixels within the target display panel, and the positional relationship between these target pixels and the pixel to be compensated. Alternatively, the threshold voltage compensation amount corresponding to multiple target pixels within the target display panel can be determined by using pre-calibrated calibration threshold voltage compensation amounts, and the positional relationship between these target pixels and the pixel to be compensated. This calculation method is simple and efficient. Furthermore, this embodiment only requires calibrating the calibration resistors and calibration threshold voltage compensation amounts corresponding to multiple target pixels to calculate the resistance and threshold voltage compensation amount of any pixel to be compensated, reducing the workload of calibration processing.

[0052] In some optional embodiments, determining the resistance corresponding to the pixel to be compensated based on the positional relationship between multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels, includes: using a bilinear interpolation algorithm, combining the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels to calculate the resistance corresponding to the pixel to be compensated; determining the threshold voltage compensation amount corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amount corresponding to the multiple target pixels, includes: using a bilinear interpolation algorithm, combining the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amount corresponding to the multiple target pixels to determine the threshold voltage compensation amount corresponding to the pixel to be compensated. Preferably, based on the position of the pixel to be compensated, the calibration resistance / calibration threshold voltage compensation amount of the multiple target pixels surrounding the pixel to be compensated is determined from the calibration resistance / calibration threshold voltage compensation amount of the multiple pixels within the pre-calibrated target display panel.

[0053] For example, the display panel can be divided into multiple regions, and at least one pixel in each region can be selected for resistance calibration and threshold voltage compensation calibration, thereby obtaining the calibration resistance and calibration threshold voltage compensation for multiple pixels. Then, based on the position of the pixel to be compensated, multiple target pixels surrounding the pixel to be compensated can be determined from the multiple pixels, with the number of target pixels being greater than or equal to four, thereby obtaining the calibration resistance and calibration threshold voltage compensation for the multiple target pixels surrounding the pixel to be compensated. A linear interpolation algorithm can be used to calculate the resistance and threshold voltage compensation for the pixel to be compensated; the linear interpolation algorithm can be a bilinear interpolation algorithm. For example, refer to... Figure 2B Assuming the resistance or threshold voltage compensation of the pixel to be compensated can be expressed as P, meaning the position of the pixel to be compensated is point P, then the positions of multiple target pixels can be determined as points Q11, Q12, Q21, and Q22. Assuming the calibration resistance or calibration threshold voltage compensation of the multiple target pixels can be expressed as Q11, Q12, Q21, and Q22, the linear interpolation calculation process based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration resistances corresponding to the multiple target pixels, is as follows:

[0054] R1(x,y)=Q11*(x-x2) / (x1–x2)+Q12*(x1–x) / (x1–x2);

[0055] R2(x,y)=Q21*(x-x2) / (x1–x2)+Q22*(x1–x) / (x1–x2);

[0056] P(x,y)=R1*(y–y2) / (y1–y2)+R2*(y1–y) / (y1–y2).

[0057] Using the above method, the resistance and threshold voltage compensation amounts corresponding to the pixels to be compensated can be calculated respectively.

[0058] In this embodiment, bilinear interpolation can be performed based on the positional relationship between multiple target pixels and the pixel to be compensated, as well as the calibration resistors corresponding to the multiple target pixels, to obtain the resistance corresponding to the pixel to be compensated. Similarly, bilinear interpolation can be performed based on the positional relationship between multiple target pixels and the pixel to be compensated, as well as the calibration threshold voltage compensation amount corresponding to the multiple target pixels, to obtain the threshold voltage compensation amount corresponding to the pixel to be compensated. The calculation process is simple and has high calculation efficiency.

[0059] In some optional embodiments, the process of calibrating the calibration threshold voltage compensation amount corresponding to multiple target pixels within the target display panel includes: acquiring first display brightness data corresponding to multiple target pixels when the target display panel is in a first target state; the first target state indicates that the target display panel is in a state of displaying a low grayscale image; the brightness level of the low grayscale image is less than a first preset brightness level threshold; and determining the calibration threshold voltage compensation amount corresponding to multiple target pixels based on the first display brightness data corresponding to multiple target pixels and preset first reference brightness data. Preferably, the calibration threshold voltage compensation amount corresponding to multiple target pixels is determined based on the difference between the first display brightness data corresponding to multiple target pixels and the preset first reference brightness data.

[0060] For example, grayscale refers to the different gray levels displayed in an image, also known as gray level, gray scale level, or grayscale range. It is usually represented numerically by the brightness or darkness of pixels in an image, and typically includes 256 gray levels (0-255), 1024 gray levels (0-1023), 4096 gray levels (0-4095), 65536 gray levels (0-65535), and so on. Low grayscale refers to the relatively darker portion of the brightness level within the entire grayscale range, that is, grayscale pixels closer to the black end. In this embodiment, the brightness level of the low grayscale image is less than a first preset brightness level threshold, i.e., an image that is darker or close to the minimum brightness level, such as an image with a brightness level of 16. The first preset brightness level threshold can be flexibly set by those skilled in the art according to actual conditions, and this embodiment does not limit this.

[0061] By capturing images of the target display panel while it displays a low grayscale image, we can obtain first display brightness data corresponding to multiple pre-set target pixels. Then, we can calculate the brightness difference between the first display brightness data and a preset first reference brightness data for the multiple target pixels, and determine the calibration threshold voltage compensation amount for the multiple target pixels based on this brightness difference. When the target display panel displays a low grayscale image, the first display brightness data can be used to indicate the actual threshold voltage for the multiple target pixels, and the first reference brightness data can be used to indicate the theoretical threshold voltage for the multiple target pixels. The calibration threshold voltage compensation amount can be understood as the difference between the actual threshold voltage and the theoretical threshold voltage.

[0062] In this embodiment, when displaying a low grayscale image using the target display panel, the display brightness is low, resulting in a low current. This means the voltage drop caused by the current flowing through the resistor has a minimal impact on brightness. Therefore, the primary influencing factor for low grayscale brightness is the threshold voltage compensation amount. In this case, acquiring first display brightness data corresponding to multiple target pixels and then determining the calibration threshold voltage compensation amount for each target pixel based on this first display brightness data and a preset first reference brightness data improves the accuracy of determining the calibration threshold voltage compensation amount. Furthermore, subsequently determining the threshold voltage compensation amount for the pixel to be compensated using the calibration threshold voltage compensation amounts of multiple target pixels further enhances the accuracy of the threshold voltage compensation amount.

[0063] In some optional embodiments, the process of calibrating the calibration resistors corresponding to multiple target pixels within the target display panel includes: performing voltage compensation on multiple target pixels based on the calibration threshold voltage compensation amount of multiple target pixels within the target display panel; acquiring second display brightness data corresponding to multiple target pixels when the target display panel is in a second target state; the second target state indicates that the target display panel is in a state of displaying a high grayscale image; the brightness level of the high grayscale image is greater than a second preset brightness level threshold; determining the calibration resistor voltage compensation amount corresponding to multiple target pixels based on the second display brightness data corresponding to multiple target pixels and the preset second reference brightness data; determining the calibration resistors corresponding to multiple target pixels based on the calibration resistor voltage compensation amount corresponding to multiple target pixels and the pre-acquired in-plane equivalent total current of the target display panel, where the in-plane equivalent total current indicates the in-plane equivalent total current of the target display panel in the second target state.

[0064] For example, in this embodiment, the brightness level of the high grayscale image is greater than the second preset brightness level threshold, that is, the image with high brightness or close to the maximum brightness level, such as an image with a brightness level of 255. The second preset brightness level threshold is greater than the first preset brightness level threshold, and can be flexibly set by those skilled in the art according to the actual situation. This embodiment does not limit this setting.

[0065] First, voltage compensation is performed on multiple target pixels based on their calibration threshold voltage compensation values ​​within the target display panel. Next, by capturing images of the target display panel while it displays a high grayscale image, pre-set second display brightness data corresponding to the multiple target pixels is obtained. Then, the brightness difference between the second display brightness data corresponding to the multiple target pixels and a preset second reference brightness data is calculated, and the calibration resistor voltage compensation value for the multiple target pixels is determined based on this brightness difference. Finally, the equivalent total current within the calibration plane corresponding to the target display panel displaying a high grayscale image is obtained, and the calibration resistors corresponding to the multiple target pixels are calculated based on the calibration resistor voltage compensation values ​​and the equivalent total current within the calibration plane.

[0066] When a high grayscale image is displayed on the target display panel, the second display brightness data can be used to indicate the actual resistance voltage corresponding to multiple target pixels, and the second reference brightness data can be used to indicate the theoretical resistance voltage corresponding to multiple target pixels. The calibrated resistance voltage compensation amount can be understood as the difference between the actual resistance voltage and the theoretical resistance voltage.

[0067] In this embodiment, voltage compensation is performed on multiple target pixels by using the calibration threshold voltage compensation amount within the target display panel, which can eliminate the influence of threshold voltage differences on brightness. Subsequently, when displaying a high grayscale image using the target display panel, the higher the display brightness, the larger the current. This means the voltage drop caused by the current flowing through the resistor has a significant impact on brightness. Therefore, the main influencing factor for high grayscale brightness is the resistor voltage compensation amount. In this case, second display brightness data corresponding to multiple target pixels is obtained; based on the second display brightness data and preset second reference brightness data, the calibration resistor voltage compensation amount corresponding to multiple target pixels is determined; based on the calibration resistor voltage compensation amount and the pre-obtained equivalent total current within the calibration surface of the target display panel, the calibration resistor corresponding to multiple target pixels is determined, which can improve the accuracy of determining the calibration resistor.

[0068] Reference Figure 1 A voltage compensation method for a display panel according to an embodiment of this application specifically includes the following steps:

[0069] S102. Determine the in-plane equivalent total current of the target display panel, and determine the resistance corresponding to the pixel to be compensated in the target display panel; the in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel.

[0070] S104. Based on the equivalent total current in the plane and the resistance of the pixel to be compensated, determine the resistance voltage drop compensation amount corresponding to the pixel to be compensated.

[0071] S106. Obtain the threshold voltage compensation amount corresponding to the pixel to be compensated;

[0072] S108. Perform voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

[0073] In summary, the voltage compensation method of this embodiment determines the in-plane equivalent total current of the target display panel and the resistance corresponding to the pixel to be compensated within the target display panel; then, based on the in-plane equivalent total current and the resistance of the pixel to be compensated, it determines the resistance voltage drop compensation amount corresponding to the pixel to be compensated; subsequently, it obtains the threshold voltage compensation amount corresponding to the pixel to be compensated; finally, it performs voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount. This solution can simultaneously compensate for the voltage drop caused by current flowing through the resistance and the difference in the threshold voltage of the pixel. By compensating for the voltage drop caused by current flowing through the resistance, the brightness uniformity of the display panel in displaying high grayscale images can be guaranteed; by compensating for the difference in the threshold voltage of the pixel, the brightness uniformity of the display panel in displaying low grayscale images can be guaranteed. Therefore, the solution of this embodiment can improve the brightness uniformity of the display panel across the entire grayscale range, thereby reducing color differences in the display panel and improving the display effect.

[0074] Reference Figure 3 The diagram shows a structural block diagram of a voltage compensation device for a display panel according to an exemplary embodiment of the present application.

[0075] The voltage compensation device for the display panel in this embodiment includes a parameter determination module 302, a first calculation module 304, an acquisition module 306, and a second calculation module 308.

[0076] The parameter determination module 302 is used to determine the in-plane equivalent total current of the target display panel and the resistance corresponding to the pixel to be compensated in the target display panel; the in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel; the first calculation module 304 is used to determine the resistance voltage drop compensation amount corresponding to the pixel to be compensated based on the in-plane equivalent total current and the resistance of the pixel to be compensated; the acquisition module 306 is used to acquire the threshold voltage compensation amount corresponding to the pixel to be compensated; and the second calculation module 308 is used to perform voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

[0077] In some optional embodiments, the parameter determination module 302 further includes: acquiring pre-calibrated calibration resistors corresponding to multiple target pixels within the target display panel; determining the resistance corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels; the acquisition module 306 further includes: acquiring pre-calibrated calibration threshold voltage compensation amounts corresponding to multiple target pixels within the target display panel; determining the threshold voltage compensation amount corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amounts corresponding to the multiple target pixels.

[0078] In some optional embodiments, the parameter determination module 302 further includes: using a bilinear interpolation algorithm, combining the positional relationship between multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels to calculate the resistance corresponding to the pixel to be compensated; the acquisition module 306 further includes: using a bilinear interpolation algorithm, combining the positional relationship between multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amount corresponding to the multiple target pixels to determine the threshold voltage compensation amount corresponding to the pixel to be compensated; preferably, based on the position of the pixel to be compensated, the calibration resistance / calibration threshold voltage compensation amount of the multiple target pixels surrounding the pixel to be compensated is determined from the calibration resistance / calibration threshold voltage compensation amount of the multiple pixels in the pre-calibrated target display panel.

[0079] In some optional embodiments, the parameter determination module 302 further includes: acquiring the data voltage input to each pixel in the target display panel; determining the equivalent current of each pixel from a preset relationship table based on the data voltage of each pixel, the preset relationship table including the correspondence between different data voltages and equivalent currents; summing the equivalent currents of each pixel to obtain the in-plane equivalent total current of the target display panel.

[0080] In some optional embodiments, the apparatus of this embodiment further includes a calibration module, configured to: acquire first display brightness data corresponding to multiple target pixels when the target display panel is in a first target state; the first target state characterizes the target display panel as being in a state of displaying a low grayscale image; the low grayscale image is an image whose brightness level is less than a first preset brightness level threshold; determine a calibration threshold voltage compensation amount corresponding to multiple target pixels based on the first display brightness data corresponding to multiple target pixels and a preset first reference brightness data; preferably, the calibration threshold voltage compensation amount corresponding to multiple target pixels is determined based on the difference between the first display brightness data corresponding to multiple target pixels and the preset first reference brightness data.

[0081] In some optional embodiments, the calibration module is further configured to: perform voltage compensation on multiple target pixels based on calibration threshold voltage compensation amounts of multiple target pixels within the target display panel; acquire second display brightness data corresponding to multiple target pixels when the target display panel is in a second target state; the second target state characterizes the target display panel as being in a state of displaying a high grayscale image; the high grayscale image is an image whose brightness level is greater than a second preset brightness level threshold; determine calibration resistor voltage compensation amounts corresponding to multiple target pixels based on the second display brightness data corresponding to multiple target pixels and preset second reference brightness data; determine calibration resistors corresponding to multiple target pixels based on calibration resistor voltage compensation amounts corresponding to multiple target pixels and the pre-acquired calibration in-plane equivalent total current of the target display panel, wherein the in-plane equivalent total current characterizes the in-plane equivalent total current of the target display panel in the second target state.

[0082] In some optional embodiments, the parameter determination module 302 further includes: determining the in-plane equivalent total current corresponding to the current frame image displayed on the target display panel; or, determining the in-plane equivalent total current corresponding to the previous frame image displayed on the target display panel; and performing voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount, including: performing voltage compensation on the pixel to be compensated corresponding to the current frame image based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

[0083] The voltage compensation device of this embodiment is used to implement the corresponding voltage compensation methods in the various method embodiments of the first aspect described above, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here. Furthermore, the functional implementation of each module in the voltage compensation device of this embodiment can be referred to the description of the corresponding part in the aforementioned method embodiments, which will also not be repeated here.

[0084] According to a third aspect of the embodiments of this application, a display device is also provided, the display device comprising: a display panel; a computer storage medium configured to store computer program instructions for performing the voltage compensation method as described in the first aspect; and a processor configured to execute the computer program instructions to cause the display panel to perform voltage compensation.

[0085] According to a fourth aspect of the embodiments of this application, a display terminal is also provided, the display terminal including a terminal device body and a display device disposed on the terminal device body, the display screen being the display device as described above.

[0086] An exemplary display terminal, such as Figure 4As shown, it includes a terminal device body 401 and a display device 402. The display device 402 is disposed on the terminal device body 401 and electrically connected to the terminal device body 401. The display device 402 is the display device described in the foregoing embodiments, used to display static or dynamic images.

[0087] For example, the above-mentioned display terminal can be implemented in the form of various electronic devices such as mobile phones, tablet computers, handheld computers, and PADs.

[0088] According to a fifth aspect of the present application, an electronic device is provided, comprising: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; the memory is used to store a computer program; and the processor is used to execute the voltage compensation method described in the first aspect by running the computer program stored in the memory.

[0089] Figure 5 A structural block diagram of an optional electronic device according to an embodiment of this application is shown. This application does not limit the specific implementation of the electronic device 500; however, as an example, reference is made to... Figure 5 The electronic device 500 provided in this application embodiment includes: a processor 502, a communications interface 504, a memory 506, and a communication bus 508. Wherein:

[0090] The processor 502, communication interface 504, and memory 506 communicate with each other via communication bus 508.

[0091] Communication interface 504 is used to communicate with other electronic devices or servers.

[0092] The processor 502 is used to execute the computer program 510, specifically the relevant steps in any of the aforementioned voltage compensation method embodiments.

[0093] Specifically, computer program 510 may include program code that includes computer operation instructions.

[0094] The processor 502 may be a CPU, a GPU (Graphics Processing Unit), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application. The one or more processors included in the smart device may be processors of the same type, such as one or more CPUs; or they may be processors of different types, such as one or more CPUs and one or more ASICs.

[0095] Memory 506 is used to store computer program 510. Memory 506 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0096] Specifically, computer program 510 can be used to cause processor 502 to execute the voltage compensation method in any of the foregoing embodiments.

[0097] The specific implementation of each step in computer program 510 can be found in the corresponding steps and units described in any of the aforementioned voltage compensation method embodiments, and will not be repeated here. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the devices and modules described above can be referred to the corresponding process descriptions in the aforementioned method embodiments, and will not be repeated here.

[0098] The electronic device 500 in this application embodiment has been described in detail in the aforementioned voltage compensation method embodiment. Therefore, its related content and beneficial effects can be understood by referring to the above method embodiment, and will not be repeated here.

[0099] According to a sixth aspect of the embodiments of this application, the embodiments of this application also provide a computer storage medium storing a computer program thereon, which, when executed by a processor, implements the voltage compensation method described in any of the foregoing method embodiments. The computer storage medium includes, but is not limited to, compact disc read-only memory (CD-ROM), random access memory (RAM), floppy disk, hard disk, or magneto-optical disk, etc.

[0100] According to a seventh aspect of the embodiments of this application, the embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the voltage compensation method as described in any of the embodiments of the plurality of method embodiments described above.

[0101] The electronic device 800 / computer storage medium / computer program product embodiment in this application has been described in detail in the aforementioned voltage compensation method embodiment. Therefore, its related content and beneficial effects can be understood by referring to the above method embodiment, and will not be repeated here.

[0102] It should be noted that, depending on the implementation needs, the various components / steps described in the embodiments of this application can be broken down into more components / steps, or two or more components / steps or parts of the operation of components / steps can be combined into new components / steps to achieve the purpose of the embodiments of this application.

[0103] The methods described in the embodiments of this application can be implemented in hardware, firmware, or as software or computer code that can be stored in a recording medium (such as a CD-ROM, RAM, floppy disk, hard disk, or magneto-optical disk), or as computer code downloaded over a network that is originally stored in a remote recording medium or a non-transitory machine-readable medium and will be stored in a local recording medium. Thus, the methods described herein can be stored on a recording medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware (such as an Application Specific Integrated Circuit (ASIC) or a Field Programmable Gate Array (FPGA)). It is understood that the computer, processor, microprocessor controller, or programmable hardware includes storage components (e.g., Random Access Memory (RAM), Read-Only Memory (ROM), Flash Memory, etc.) capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods described herein. Furthermore, when a general-purpose computer accesses code used to implement the methods shown herein, the execution of the code transforms the general-purpose computer into a dedicated computer for executing the methods shown herein.

[0104] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for specific applications, but such implementations should not be considered beyond the scope of the embodiments of this application.

[0105] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". It should be noted that the concepts of "first", "second", etc., mentioned in the embodiments of this application are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies. It should be noted that the modifications of "a" and "a plurality" mentioned in the embodiments of this application are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0106] The above embodiments are only used to illustrate the embodiments of this application, and are not intended to limit the embodiments of this application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the embodiments of this application. Therefore, all equivalent technical solutions also fall within the scope of the embodiments of this application, and the patent protection scope of the embodiments of this application should be defined by the claims.

Claims

1. A voltage compensation method for a display panel, characterized in that, include: The in-plane equivalent total current of the target display panel is determined, and the resistance of the pixel to be compensated in the target display panel is determined; the in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel. Based on the in-plane equivalent total current and the resistance of the pixel to be compensated, determine the resistance voltage drop compensation amount corresponding to the pixel to be compensated; Obtain the threshold voltage compensation amount corresponding to the pixel to be compensated; Voltage compensation is performed on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount; The step of determining the resistance corresponding to the pixel to be compensated within the target display panel includes: Obtain the pre-calibrated calibration resistors corresponding to multiple target pixels within the target display panel; Based on the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibration resistors corresponding to the plurality of target pixels, the resistance corresponding to the pixel to be compensated is determined; The step of obtaining the threshold voltage compensation amount corresponding to the pixel to be compensated includes: Obtain the pre-calibrated calibration threshold voltage compensation amount corresponding to multiple target pixels in the target display panel; Based on the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibrated threshold voltage compensation amount corresponding to the plurality of target pixels, the threshold voltage compensation amount corresponding to the pixel to be compensated is determined; The step of determining the resistance corresponding to the pixel to be compensated based on the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibration resistors corresponding to the plurality of target pixels, includes: A bilinear interpolation algorithm is used to calculate the resistance corresponding to the pixel to be compensated by combining the positional relationship between the multiple target pixels and the pixel to be compensated, as well as the calibration resistors corresponding to the multiple target pixels. The step of determining the threshold voltage compensation amount corresponding to the pixel to be compensated based on the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibrated threshold voltage compensation amount corresponding to the plurality of target pixels, includes: A bilinear interpolation algorithm is used to determine the threshold voltage compensation amount corresponding to the pixel to be compensated, by combining the positional relationship between the multiple target pixels and the pixel to be compensated, as well as the calibration threshold voltage compensation amount corresponding to the multiple target pixels.

2. The method according to claim 1, characterized in that, The method further includes: Based on the position of the pixel to be compensated, the calibration resistance / calibration threshold voltage compensation amount of the plurality of target pixels surrounding the pixel to be compensated is determined from the pre-calibrated calibration resistance / calibration threshold voltage compensation amount of the plurality of pixels in the target display panel.

3. The method according to claim 1, characterized in that, Determining the in-plane equivalent total current of the target display panel includes: Acquire the data voltage input for each pixel within the target display panel; Based on the data voltage of each pixel, the equivalent current of each pixel is determined from a preset relationship table, which includes the correspondence between different data voltages and equivalent currents. The equivalent current of each pixel is summed to obtain the in-plane equivalent total current of the target display panel.

4. The method according to claim 1, characterized in that, The process of calibrating the calibration threshold voltage compensation amount corresponding to multiple target pixels within the target display panel includes: When the target display panel is in a first target state, the first display brightness data corresponding to the plurality of target pixels is obtained; the first target state indicates that the target display panel is in a state of displaying a low grayscale image; the brightness level of the low grayscale image is less than a first preset brightness level threshold. Based on the first display brightness data corresponding to the plurality of target pixels and the preset first reference brightness data, the calibration threshold voltage compensation amount corresponding to the plurality of target pixels is determined.

5. The method according to claim 4, characterized in that, The step of determining the calibration threshold voltage compensation amount corresponding to the plurality of target pixels based on the first display brightness data corresponding to the plurality of target pixels and the preset first reference brightness data includes: The calibration threshold voltage compensation amount corresponding to the plurality of target pixels is determined based on the difference between the first display brightness data corresponding to the plurality of target pixels and the preset first reference brightness data.

6. The method according to claim 4, characterized in that, The process of calibrating the calibration resistors corresponding to multiple target pixels within the target display panel includes: Voltage compensation is performed on the multiple target pixels based on the calibrated threshold voltage compensation amount of the multiple target pixels in the target display panel; When the target display panel is in a second target state, the second display brightness data corresponding to the plurality of target pixels is obtained; the second target state indicates that the target display panel is in a state of displaying a high grayscale image; the brightness level of the high grayscale image is greater than a second preset brightness level threshold. Based on the second display brightness data corresponding to the plurality of target pixels and the preset second reference brightness data, determine the calibration resistor voltage compensation amount corresponding to the plurality of target pixels; The calibration resistors corresponding to the multiple target pixels are determined based on the calibration resistor voltage compensation amount corresponding to the multiple target pixels and the pre-acquired in-plane equivalent total current of the target display panel. The in-plane equivalent total current represents the in-plane equivalent total current of the target display panel in the second target state.

7. The method according to claim 1, characterized in that, Determining the in-plane equivalent total current of the target display panel includes: Determine the target display panel to show the in-plane equivalent total current corresponding to the current frame image; or, Determine the in-plane equivalent total current corresponding to the previous frame image displayed on the target display panel; The step of performing voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount includes: Voltage compensation is performed on the pixel to be compensated corresponding to the current frame image based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

8. A voltage compensation device for a display panel, characterized in that, include: The parameter determination module is used to determine the in-plane equivalent total current of the target display panel, and to determine the resistance of the pixel to be compensated in the target display panel; The in-plane equivalent total current represents the sum of the equivalent currents of each pixel in the target display panel. Determining the resistance corresponding to the pixel to be compensated within the target display panel includes: acquiring pre-calibrated calibration resistors corresponding to multiple target pixels within the target display panel; determining the resistance corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration resistors corresponding to the multiple target pixels; obtaining the threshold voltage compensation amount corresponding to the pixel to be compensated includes: acquiring pre-calibrated calibration threshold voltage compensation amounts corresponding to multiple target pixels within the target display panel; determining the threshold voltage compensation amount corresponding to the pixel to be compensated based on the positional relationship between the multiple target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amounts corresponding to the multiple target pixels. The method for determining the resistance of the pixel to be compensated based on the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibration resistors corresponding to the plurality of target pixels, includes: using a bilinear interpolation algorithm, combining the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibration resistors corresponding to the plurality of target pixels to calculate the resistance of the pixel to be compensated; the method for determining the threshold voltage compensation amount of the pixel to be compensated based on the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amount corresponding to the plurality of target pixels, includes: using a bilinear interpolation algorithm, combining the positional relationship between the plurality of target pixels and the pixel to be compensated, and the calibration threshold voltage compensation amount corresponding to the plurality of target pixels to determine the threshold voltage compensation amount of the pixel to be compensated. The first calculation module is used to determine the resistance voltage drop compensation amount corresponding to the pixel to be compensated based on the in-plane equivalent total current and the resistance of the pixel to be compensated. The acquisition module is used to acquire the threshold voltage compensation amount corresponding to the pixel to be compensated; The second calculation module is used to perform voltage compensation on the pixel to be compensated based on the resistance voltage drop compensation amount and the threshold voltage compensation amount.

9. A display device, characterized in that, The display device includes: Display panel; A computer storage medium configured to store computer program instructions for performing the voltage compensation method as described in any one of claims 1 to 7; and, The processor is configured to execute the computer program instructions to cause the display panel to perform voltage compensation.

10. A display terminal, characterized in that, The display terminal includes a terminal device body and a display device as described in claim 9 disposed on the terminal device body.

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