Line crosstalk measurement method, system, liquid crystal display device, storage medium

Abstract

The application discloses a line crosstalk measurement method, system, liquid crystal display device and storage medium, and belongs to the technical field of liquid crystal display, and the method comprises the steps of displaying a crosstalk picture, the crosstalk picture comprising a display area and an influence area, the display area and the influence area having different gray values, the display area comprising a plurality of line crosstalks parallel to the horizontal boundary of the display area, and the line crosstalks extending to the influence area; determining a first brightness value of a preset measurement area in the crosstalk picture, the preset measurement area being located in the influence area and comprising a plurality of line crosstalks; switching the crosstalk picture to a solid color picture, the display area and the influence area in the solid color picture having the same gray value; determining a second brightness value of the preset measurement area in the solid color picture; and determining a crosstalk value according to the first brightness value and the second brightness value. The application sets a plurality of line crosstalks in the crosstalk picture, and has the technical effect of improving crosstalk test efficiency.

Description

Technical Field

[0001] This invention relates to the field of liquid crystal display technology, and in particular to a method, system, liquid crystal display device, and storage medium for measuring linear crosstalk. Background Technology

[0002] When a liquid crystal display (LCD) screen is affected by the display of images from other areas during the display process, a localized display defect occurs, which is called crosstalk. The root cause of crosstalk is the small spacing between the TFT (Thin Film Transistor) and the substrate, and the capacitive coupling effect between the data line and the common electrode. When one signal undergoes a sudden change, the stability of other surrounding signals will be affected, which is the crosstalk phenomenon.

[0003] Linear crosstalk is usually displayed as a single line of poor signaling. Experiments and production tests are generally conducted by visual observation, which is highly subjective and has low measurement efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a method, system, liquid crystal display device, and storage medium for measuring linear crosstalk, aiming to solve the problem of low crosstalk measurement efficiency caused by visual observation of linear crosstalk phenomena.

[0005] To achieve the above objectives, the present invention provides a method for measuring linear crosstalk, the method comprising:

[0006] The crosstalk display includes a display area and an affected area, the grayscale values ​​of the display area and the affected area are different, the display area includes multiple linear crosstalk lines parallel to the horizontal boundary of the display area, and the linear crosstalk lines extend to the affected area;

[0007] Determine a first brightness value of a preset measurement area in the crosstalk image, wherein the preset measurement area is located in the affected area and the preset measurement area includes multiple linear crosstalk lines;

[0008] The crosstalk image is switched to a solid color image, in which the grayscale values ​​of the display area and the affected area are the same.

[0009] Determine the second brightness value of the preset measurement area in the solid color image;

[0010] The crosstalk value is determined based on the first brightness value and the second brightness value.

[0011] Optionally, the step of determining the crosstalk value based on the first brightness value and the second brightness value includes:

[0012] Determine the difference between the first brightness value and the second brightness value;

[0013] The crosstalk value is obtained by comparing the difference value with the second brightness value.

[0014] Optionally, after the step of determining the crosstalk value based on the first brightness value and the second brightness value, the method further includes:

[0015] Determine whether the crosstalk value is greater than a preset crosstalk threshold;

[0016] If the crosstalk value is greater than or equal to the preset crosstalk threshold, the crosstalk test of the liquid crystal display device is determined to be unqualified.

[0017] If the crosstalk value is less than the preset crosstalk threshold, the crosstalk test of the liquid crystal display device is deemed qualified.

[0018] Optionally, the area ratio of the display area to the affected area is 1:1.

[0019] Optionally, a crosstalk interval is provided between the linear crosstalks, and the crosstalk interval between adjacent linear crosstalks is equal.

[0020] Optionally, the widths of the linear crosstalk are equal.

[0021] Optionally, the width of the linear crosstalk, the crosstalk interval, and the number of linear crosstalk lines satisfy a preset resolution relationship.

[0022] In addition, to achieve the above objectives, the present invention also provides a linear crosstalk measurement system, including an optical measurement device and a liquid crystal display device;

[0023] The liquid crystal display device is used to display a crosstalk image, the crosstalk image includes a display area and an affected area, the grayscale values ​​of the display area and the affected area are different, the display area includes multiple linear crosstalk lines parallel to the horizontal boundary of the display area, and the linear crosstalk lines extend to the affected area;

[0024] The optical measurement device is used to determine a first brightness value of a preset measurement area in the crosstalk image, the preset measurement area being located in the affected area, and the preset measurement area including multiple linear crosstalk lines.

[0025] The liquid crystal display device is further configured to switch the crosstalk image to a solid color image, wherein the grayscale values ​​of the display area and the affected area are the same in the solid color image;

[0026] The optical measurement device is also used to determine a second brightness value of the preset measurement area in the solid color image;

[0027] The optical measurement device is further configured to determine the crosstalk value of the liquid crystal display device based on the first brightness value and the second brightness value.

[0028] In addition, to achieve the above objectives, the present invention also provides a liquid crystal display device, the liquid crystal display device comprising: a memory, a processor, and a line crosstalk measurement program stored in the memory and executable on the processor, the line crosstalk measurement program being configured to implement the steps of the line crosstalk measurement method as described above.

[0029] In addition, to achieve the above objectives, the present invention also provides a computer-readable storage medium storing a line crosstalk measurement program, which, when executed by a processor, implements the steps of the line crosstalk measurement method as described above.

[0030] This invention discloses a method for measuring linear crosstalk. First, a crosstalk image is displayed, comprising a display area and an affected area. The display area and the affected area have different grayscale values. The display area includes multiple linear crosstalk lines parallel to its horizontal boundary, extending into the affected area. A first brightness value is determined for a preset measurement area within the crosstalk image, located within the affected area. This preset measurement area includes multiple linear crosstalk lines. The crosstalk image is then switched to a solid color image, where the display area and the affected area have the same grayscale value. A second brightness value is determined for the preset measurement area within the solid color image. Finally, a crosstalk value is determined based on the first and second brightness values. Since a single linear crosstalk line is unlikely to cause significant brightness changes during brightness measurement, this method displays multiple linear crosstalk lines within the crosstalk image, optimizing the pixel arrangement of the display area to induce sufficient brightness changes within the preset measurement area. The obtained crosstalk value quantifies the difficult-to-quantify linear crosstalk, allowing optical equipment measurement to replace visual observation and improving measurement efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of a liquid crystal display device in the hardware operating environment involved in the embodiments of the present invention;

[0032] Figure 2 This is a flowchart illustrating the first embodiment of the linear crosstalk measurement method of the present invention;

[0033] Figure 3 This is a schematic diagram of a conventional linear crosstalk measurement screen related to the linear crosstalk measurement method of the present invention;

[0034] Figure 4 This is a schematic diagram of a crosstalk display related to the linear crosstalk measurement method of the present invention;

[0035] Figure 5 This is a flowchart illustrating the second embodiment of the linear crosstalk measurement method of the present invention.

[0036] Explanation of reference numerals in the attached figures

[0037] 100 Display area 200 Area of ​​impact 300 Preset measurement area 400 Linear crosstalk

[0038] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0040] Common crosstalk phenomena mainly include linear crosstalk and planar crosstalk. Planar crosstalk is a defect affecting the entire surface; this phenomenon is obvious and easily detected by the naked eye and optical testing instruments. It can usually be quantified using brightness and color shift values, and its measured values ​​match the results observed by the naked eye quite well. Linear crosstalk, on the other hand, is a single, linear display defect. Although it is clearly visible to the naked eye, the changes in brightness and color are not significant, making it difficult to detect using conventional optical measuring instruments. Its measured results also have a lower match with the results observed by the naked eye. Linear crosstalk presents a challenge in quantifying during the manufacturing process of LCD panels.

[0041] To address the difficulty in quantifying linear crosstalk, experiments and production testing are often conducted using visual observation. However, visual observation has several drawbacks: Firstly, it is inaccurate to quantify the severity of crosstalk (slight, good, severe). It is often influenced by human subjectivity; for example, observer A might classify it as good while observer B might classify it as slight. This high degree of subjectivity can lead to discrepancies between the client's and the panel manufacturer's assessments, impacting product adoption by the client. Secondly, visual observation significantly affects the observer's eyesight. Panel manufacturing plants produce tens of thousands of LCD screens daily; prolonged use of visual observation will severely damage employees' vision, potentially causing occupational vision problems. Thirdly, visual observation is inefficient, hindering the speed of large-scale automated LCD panel production and reducing production capacity.

[0042] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of a liquid crystal display device in the hardware operating environment involved in the embodiments of the present invention.

[0043] like Figure 1As shown, the liquid crystal display device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0044] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the liquid crystal display device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0045] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a linear crosstalk measurement program.

[0046] exist Figure 1 In the liquid crystal display device shown, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the liquid crystal display device of the present invention can be set in the liquid crystal display device. The liquid crystal display device calls the linear crosstalk measurement program stored in the memory 1005 through the processor 1001 and executes the linear crosstalk measurement method provided in the embodiment of the present invention.

[0047] This invention provides a method for measuring linear crosstalk, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of a linear crosstalk measurement method according to the present invention.

[0048] In this embodiment, the linear crosstalk measurement method includes:

[0049] Step S10: Display a crosstalk screen, which includes a display area and an affected area. The grayscale values ​​of the display area and the affected area are different. The display area includes multiple linear crosstalk lines parallel to the horizontal boundary of the display area, and the linear crosstalk lines extend to the affected area.

[0050] The linear crosstalk measurement method of this embodiment can be applied to measure crosstalk in liquid crystal display devices. The crosstalk screen can be considered a screen specifically displayed for measuring linear crosstalk. Before displaying the crosstalk screen, a conventional measurement screen can also be displayed to determine whether there is obvious planar crosstalk in the screen and to determine the type of crosstalk. To determine whether planar crosstalk exists, the brightness of the liquid crystal display device can be measured using optical instruments, and the judgment can be made by observing or measuring the brightness difference with the naked eye.

[0051] The display area can be considered as the region that affects the display effect of the surrounding areas, while the affected area is the region that may display poorly due to the influence of the display area. The display area and the affected area have different grayscale values, so these two areas can be distinguished in a crosstalk image by the difference in grayscale values. For example, in one feasible implementation, the grayscale values ​​of the display area and the affected area are set to 31 / 0 respectively; in another feasible implementation, the grayscale values ​​are set to 64 / 255. There is a certain difference in grayscale values ​​between the display area and the affected area.

[0052] Figure 3 This is a schematic diagram of a typical linear crosstalk measurement screen, such as... Figure 3 As shown, the enclosed central area is the display area 100, and the area surrounding the display area 100 is the influence area 200. Under normal circumstances, when measuring linear crosstalk 400, only one defective line is displayed at the upper and lower boundaries of the display area 100. The preset measurement area 300 is located at the left and right ends of the display area 100 and is symmetrically distributed. Figure 4 This is a schematic diagram of the crosstalk screen in this embodiment, as shown below. Figure 4 As shown, in this embodiment, multiple linear crosstalk lines 400 are added to the display area 100. The linear crosstalk lines 400 are parallel to the horizontal boundary of the display area 100 and extend to the affected area 200.

[0053] In some feasible implementations, the area ratio of the display area to the affected area can be set to 1:1. Crosstalk intervals are set between linear crosstalk lines, with equal crosstalk intervals between adjacent linear crosstalk lines. The width of the linear crosstalk lines is also equal, and the width, crosstalk interval, and number of linear crosstalk lines satisfy a preset resolution relationship. Taking a 4K display screen with a resolution of 3840*2160 as an example, the display area and the affected area each occupy 1 / 2 of the total screen area. The preset resolution relationship can be: 2160*1 / 2=(x+y)*z, where x represents the width of a single linear crosstalk line, y represents the crosstalk interval, and z represents the number of linear crosstalk lines. If the width of the linear crosstalk line is set to 2 pixels and the crosstalk interval to 1 pixel, then the number of linear crosstalk lines is 360. By optimizing the pixel arrangement structure of the central display area, the original single-line crosstalk is adjusted to multiple lines of crosstalk. Multiple horizontal lines of crosstalk are sufficient to cause brightness changes in the preset measurement area. At this time, the brightness change is obvious and can be measured and captured by optical measurement equipment.

[0054] Step S20: Determine the first brightness value of the preset measurement area in the crosstalk image. The preset measurement area is located in the affected area and includes multiple linear crosstalk lines.

[0055] The preset measurement area can be considered as the area where optical instruments measure optical properties such as screen brightness. In this embodiment, the main property measured is brightness. The affected area is influenced by the display area, therefore the preset measurement area is set in the affected area. Linear crosstalk extends to the affected area. Since the preset measurement area has a certain area, multiple linear crosstalk lines can pass through it. Figure 3 and Figure 4 The circular area represents the preset measurement area. The size of the preset measurement area is determined by the characteristics of the measuring instrument. In one feasible implementation, a CA-310 color analyzer is selected as the measuring instrument to measure the first luminance value. Therefore, the size of the preset measurement area is determined by the probe size of the CA-310 color analyzer. The larger the area of ​​the preset measurement area, the more linear crosstalk lines it can contain. There is no specific limit to the number of preset measurement areas; for example, it can be referenced... Figure 4 Set as two circular areas located symmetrically on the left and right sides of the display area.

[0056] Step S30: Switch the crosstalk image to a solid color image, wherein the grayscale values ​​of the display area and the affected area are the same in the solid color image;

[0057] When the grayscale values ​​of the display area and the affected area are the same, the LCD device displays a solid color image. Due to the switching of images, the crosstalk phenomenon disappears, and the brightness of the preset measurement area can be used as a reference when crosstalk exists.

[0058] Step S40: Determine the second brightness value of the preset measurement area in the solid color image;

[0059] The preset measurement area is located at the same position in both the crosstalk image and the solid color image. In one feasible implementation, the grayscale value of the solid color image is the same as the grayscale value of the affected area in the crosstalk image. When displaying the crosstalk image, the preset measurement area includes multiple linear crosstalk lines, creating a significant brightness difference between the preset measurement area and the brightness of the preset measurement area when displaying the solid color image. This brightness difference is sufficient to be detected and measured by the measuring instrument. A CA-310 color analyzer can be used, with the probe placed at the preset measurement area position to obtain a second brightness value.

[0060] Step S50: Determine the crosstalk value based on the first brightness value and the second brightness value.

[0061] Because of the presence of multiple linear crosstalk lines in the preset measurement area of ​​the crosstalk image, the difference between the first brightness value and the second brightness value can be used as the basis for calculating the crosstalk value, characterizing the degree of crosstalk influence in the liquid crystal display device, and serving as an evaluation index for crosstalk testing. For example, the difference between the first brightness value and the second brightness value can be used as the basis for evaluating the severity of the crosstalk phenomenon; the larger the difference, the more severe the crosstalk phenomenon, and the smaller the difference, the milder the crosstalk phenomenon.

[0062] In some feasible implementations, the difference between the first brightness value and the second brightness value can be determined first, and then the difference value and the second brightness value can be compared to obtain the crosstalk value. The crosstalk value can be calculated using the following formula 1.

[0063] Formula 1: CT% = ABS(La-Lb) / Lb*100%.

[0064] Where CT represents the crosstalk value, ABS represents the absolute value, La represents the first brightness value, and Lb represents the second brightness value. A higher crosstalk value indicates a more severe crosstalk phenomenon in the LCD display device. When there are two or more preset measurement areas, a crosstalk value can be calculated for each preset measurement area. The crosstalk value of the LCD display device can be taken as the maximum value among all the crosstalk values ​​it contains, representing the crosstalk value of the LCD display device.

[0065] In this embodiment, first, a crosstalk screen is displayed. The crosstalk screen includes a display area and an influence area, and the gray values of the display area and the influence area are different. The display area includes multiple linear crosstalks parallel to the horizontal boundary of the display area, and the linear crosstalks extend to the influence area. Determine the first brightness value of a preset measurement area in the crosstalk screen. The preset measurement area is located in the influence area and includes multiple of the linear crosstalks. Switch the crosstalk screen to a solid color screen, in which the gray values of the display area and the influence area are the same. Determine the second brightness value of the preset measurement area in the solid color screen. Determine the crosstalk value according to the first brightness value and the second brightness value. A single linear crosstalk is difficult to cause an obvious brightness change during the brightness measurement process. The method of the embodiment of the present invention displays multiple linear crosstalks in the crosstalk screen, optimizes the pixel arrangement structure of the display area, causes sufficient brightness change within the preset measurement area, quantifies the difficult-to-quantify linear crosstalk through the obtained crosstalk value, uses optical device measurement instead of naked-eye observation, improves the measurement efficiency, and reduces the impact on the visual health of the observers.

[0066] Further, in the second embodiment of the linear crosstalk measurement method of the present invention, refer to Figure 5 , the method includes:

[0067] Step S60, determine whether the crosstalk value is greater than a preset crosstalk threshold;

[0068] The preset crosstalk threshold can be regarded as an index for whether the crosstalk test is qualified. The preset crosstalk threshold can be set according to actual needs. For example, it can be set to 1.5% or 2%. The smaller the preset crosstalk threshold is set, the stricter the standard for passing the crosstalk test is. Comparing the obtained crosstalk value with the preset crosstalk threshold can evaluate whether the crosstalk test of the liquid crystal display device is qualified.

[0069] Step S70, if the crosstalk value is greater than or equal to the preset crosstalk threshold, determine that the crosstalk test of the liquid crystal display device is unqualified;

[0070] When the crosstalk value is greater than or equal to the preset crosstalk threshold, it indicates that the brightness difference between the liquid crystal display device under test in the crosstalk screen and the solid color screen is large, and the crosstalk phenomenon is relatively serious. It can be determined that the crosstalk test of the liquid crystal display device is unqualified. After confirming the unqualified, the crosstalk phenomenon can be reduced by adjusting parameters such as the voltage of the liquid crystal display device.

[0071] Step S80, if the crosstalk value is less than the preset crosstalk threshold, determine that the crosstalk test of the liquid crystal display device is qualified.

[0072] If the crosstalk value is less than the preset crosstalk threshold, it means that the brightness difference between the crosstalked image and the solid color image of the LCD device under test is small, and the crosstalk phenomenon is slight. It can be determined that the crosstalk test of the LCD device is qualified and can proceed to the test steps of other test items.

[0073] In this embodiment, a preset crosstalk threshold is set to evaluate whether the crosstalk value measured by the liquid crystal display device meets the requirements of the crosstalk test. Subsequent steps are performed based on the crosstalk test results, thereby improving the automation level of the testing process.

[0074] This invention also provides a linear crosstalk measurement system, including a brightness measurement device and a liquid crystal display device;

[0075] The liquid crystal display device is used to display a crosstalk image, the crosstalk image includes a display area and an affected area, the grayscale values ​​of the display area and the affected area are different, the display area includes multiple linear crosstalk lines parallel to the horizontal boundary of the display area, and the linear crosstalk lines extend to the affected area;

[0076] The brightness measurement device is used to determine a first brightness value of a preset measurement area in the crosstalk image, the preset measurement area is located in the affected area, and the preset measurement area includes multiple linear crosstalk lines.

[0077] The liquid crystal display device is further configured to switch the crosstalk image to a solid color image, wherein the grayscale values ​​of the display area and the affected area are the same in the solid color image;

[0078] The brightness measuring device is also used to determine a second brightness value of the preset measurement area in the solid color image;

[0079] The brightness measuring device is also used to determine a crosstalk value based on the first brightness value and the second brightness value.

[0080] In this embodiment, the linear crosstalk measurement system includes an optical measurement device and a main control device. The optical measurement device mainly measures the optical properties of the liquid crystal display device and can use a CA-310 color analyzer. The main control device is connected to the optical measurement device and can acquire the measured data, process the data, and analyze and determine whether the crosstalk test of the liquid crystal display device is qualified.

[0081] This invention also provides a liquid crystal display device, comprising: a memory, a processor, and a line crosstalk measurement program stored in the memory and executable on the processor. The line crosstalk measurement program is configured to implement the steps of the line crosstalk measurement method described above. Specific implementations of the liquid crystal display device of this invention are described in the various embodiments of the line crosstalk measurement method described above, and will not be repeated here.

[0082] This invention also provides a computer-readable storage medium storing a linear crosstalk measurement program. When executed by a processor, the linear crosstalk measurement program implements the steps of the linear crosstalk measurement method described above. Specific implementations of the computer-readable storage medium are detailed in the embodiments of the linear crosstalk measurement method described above, and will not be repeated here.

[0083] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0084] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0085] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for measuring linear crosstalk, characterized in that, The linear crosstalk measurement method includes the following steps: The crosstalk display includes a display area and an affected area, the grayscale values ​​of the display area and the affected area are different, the display area includes multiple linear crosstalk lines parallel to the horizontal boundary of the display area, and the linear crosstalk lines extend to the affected area; Determine a first brightness value of a preset measurement area in the crosstalk image, wherein the preset measurement area is located in the affected area and the preset measurement area includes multiple linear crosstalk lines; The crosstalk image is switched to a solid color image, in which the grayscale values ​​of the display area and the affected area are the same. Determine the second brightness value of the preset measurement area in the solid color image; The difference between the first brightness value and the second brightness value is determined, and the difference value and the second brightness value are compared to obtain the crosstalk value. The crosstalk value is calculated by the formula: CT%=ABS(La-Lb) / Lb*100%, where CT represents the crosstalk value, ABS represents the absolute value, La represents the first brightness value, and Lb represents the second brightness value.

2. The linear crosstalk measurement method as described in claim 1, characterized in that, After comparing the difference value and the second brightness value to obtain the crosstalk value, the method further includes: Determine whether the crosstalk value is greater than a preset crosstalk threshold; If the crosstalk value is greater than or equal to the preset crosstalk threshold, the crosstalk test of the liquid crystal display device is determined to be unqualified. If the crosstalk value is less than the preset crosstalk threshold, the crosstalk test of the liquid crystal display device is deemed qualified.

3. The linear crosstalk measurement method as described in claim 1, characterized in that, The area ratio of the display area to the affected area is 1:

1.

4. The linear crosstalk measurement method as described in claim 3, characterized in that, A crosstalk interval is provided between the linear crosstalks, and the crosstalk interval between adjacent linear crosstalks is equal.

5. The linear crosstalk measurement method as described in claim 4, characterized in that, The widths of the linear crosstalk are equal.

6. The linear crosstalk measurement method as described in claim 5, characterized in that, The width, crosstalk interval, and number of linear crosstalk lines satisfy a preset resolution relationship.

7. A linear crosstalk measurement system, characterized in that, This includes optical measurement equipment and liquid crystal display equipment; The liquid crystal display device is used to display a crosstalk image, the crosstalk image includes a display area and an affected area, the grayscale values ​​of the display area and the affected area are different, the display area includes multiple linear crosstalk lines parallel to the horizontal boundary of the display area, and the linear crosstalk lines extend to the affected area; The optical measurement device is used to determine a first brightness value of a preset measurement area in the crosstalk image, the preset measurement area being located in the affected area, and the preset measurement area including multiple linear crosstalk lines. The liquid crystal display device is further configured to switch the crosstalk image to a solid color image, wherein the grayscale values ​​of the display area and the affected area are the same in the solid color image; The optical measurement device is also used to determine a second brightness value of the preset measurement area in the solid color image; The optical measurement device is further configured to determine the difference between the first brightness value and the second brightness value, and compare the difference value with the second brightness value to obtain a crosstalk value. The crosstalk value is calculated using the formula: CT%=ABS(La-Lb) / Lb*100%, where CT represents the crosstalk value, ABS represents the absolute value, La represents the first brightness value, and Lb represents the second brightness value.

8. A liquid crystal display device, characterized in that, The liquid crystal display device includes: a memory, a processor, and a line crosstalk measurement program stored in the memory and executable on the processor, the line crosstalk measurement program being configured to implement the steps of the line crosstalk measurement method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a line crosstalk measurement program, which, when executed by a processor, implements the steps of the line crosstalk measurement method as described in any one of claims 1 to 6.

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