Method, system and display panel for reducing liquid crystal response time

Abstract

The application provides a method, system and display panel for reducing liquid crystal response time. The method comprises: establishing a plurality of code archives; the code archive comprises an experimental condition sheet and driving code matched with the experimental condition sheet, the experimental condition sheet comprises a plurality of liquid crystal process parameters; detecting the liquid crystal response time of a sample panel to obtain a detection value of the liquid crystal response time; in response to the detection value of the liquid crystal response time exceeding a preset specification, confirming a change parameter of a liquid crystal process of the sample panel; matching the change parameter with the plurality of code archives to obtain corresponding target driving code; and writing the target driving code into the sample panel to make the liquid crystal response time of the sample panel meet the preset specification. The method can improve the problem of dynamic trailing of the display panel, and the process is simple and beneficial to popularization and implementation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a method, system and display panel for reducing liquid crystal response time. BACKGROUND

[0002] In the production and manufacturing process of a liquid crystal display panel, for the purpose of improving product yield, reducing power consumption, solving complaints, improving production capacity, reducing cost and the like, the production process parameters that have been determined will be changed.

[0003] Among them, the change of the liquid crystal related process parameters, such as the change of the liquid crystal material, the change of the liquid crystal cell thickness, the change of the pre-tilt angle setting parameter and the like, has a great influence on the response time parameter of the display panel product. The product image quality will have a dynamic trailing and color trailing phenomenon that can be obviously seen by the naked eye, which seriously affects the normal use of the product, the user viewing effect is poor, and product complaints are easily caused. In order to solve this problem, the panel factory usually uses the pixel driving circuit to improve the dynamic trailing. In an existing technology, a plurality of light emitting control signal generating units are divided into different blocks, each block inputs different light emitting enable signals according to the indication signal output by the state detection device, which indicates whether the current frame is a static frame or a dynamic frame. The corresponding light emitting enable signal can be input in the case of dynamic frame, and the light emitting time of the light emitting device is changed to improve the dynamic trailing.

[0004] However, the above-mentioned technology for improving dynamic trailing is not conducive to implementation in automatic production, and involves the problem of cost increase, which is not conducive to the wide range and low cost promotion of the manufacturing plant. SUMMARY

[0005] The present application provides a method, system and display panel for reducing liquid crystal response time, which aims to solve the problem of dynamic trailing of the display panel caused by the change of the liquid crystal process parameters in the prior art.

[0006] In order to solve the above technical problem, the first technical solution provided by the present application is to provide a method for reducing liquid crystal response time. The method comprises:

[0007] Establishing a plurality of code archives; the code archive comprises an experimental condition sheet and a driving code matched with the experimental condition sheet, and the experimental condition sheet comprises a plurality of liquid crystal process parameters;

[0008] Detecting the liquid crystal response time of a sample panel to obtain a detection value of the liquid crystal response time;

[0009] In response to the detection value of the liquid crystal response time exceeding a preset specification, confirming the change parameter of the liquid crystal process of the sample panel;

[0010] Matching the change parameter with a plurality of code archives to obtain a corresponding target driving code;

[0011] write the target driving code into the sample panel, so that the liquid crystal response time of the sample panel meets the preset specification.

[0012] The step of establishing the multiple sets of code archives comprises: establishing multiple sets of the experimental condition sheets; each set of the experimental condition sheets comprises multiple liquid crystal process parameters, and the liquid crystal process parameters comprise liquid crystal material parameters, pre-tilt angle parameters, liquid crystal cell thickness parameters, and driving voltage parameters.

[0013] providing a test panel meeting the experimental condition sheet;

[0014] performing code debugging on the test panel, so that the liquid crystal response time of the test panel meets the preset specification, to obtain driving code matching the experimental condition sheet;

[0015] encapsulating each set of the experimental condition sheets and the driving code matching the experimental condition sheet as the code archive, and storing the code archive in a memory.

[0016] In any one set of the experimental condition sheets, at least one of the liquid crystal process parameters is different from those in other sets of the experimental condition sheets.

[0017] Before the step of responding to the detection value of the liquid crystal response time exceeding the preset specification, the method further comprises:

[0018] judging whether the detection value of the liquid crystal response time exceeds the preset specification;

[0019] In response to the detection value of the liquid crystal response time not exceeding the preset specification, the sample panel maintains the original driving code.

[0020] The step of judging whether the liquid crystal response time exceeds the preset specification comprises:

[0021] calculating a difference between the detection value of the liquid crystal response time and a standard value of a standard card; the standard card comprises a standard value of the liquid crystal response time required for a standard panel to transition from a first preset gray scale to a second preset gray scale;

[0022] judging whether the difference exceeds the preset specification.

[0023] The preset specification is a fluctuation range of the standard value of the liquid crystal response time, and the fluctuation range is 0-2 ms.

[0024] In response to the detection value of the liquid crystal response time exceeding the preset specification, the step of confirming the change parameter of the liquid crystal process of the sample panel comprises:

[0025] If the detected value of the liquid crystal response time exceeds the preset specification, the liquid crystal response time of the sample panel is retested to obtain the retested value of the liquid crystal response time.

[0026] If the retested value of the liquid crystal response time exceeds the preset specification, the changed parameters of the liquid crystal manufacturing process of the sample panel are confirmed.

[0027] The method further includes, after the step of writing the target driver code into the sample panel:

[0028] Restart the sample panel;

[0029] The liquid crystal response time of the sample panel was retested to confirm that the liquid crystal response time meets the preset specification.

[0030] To address the aforementioned technical problems, the second technical solution provided in this application is: a system for reducing liquid crystal response time. The system is applied to a display panel and includes:

[0031] A control bus is used to transmit signals; the display panel is electrically connected to the transmission bus.

[0032] The detection module is electrically connected to the transmission bus and is used to detect the liquid crystal response time of the display panel;

[0033] The processing module is electrically connected to the transmission bus and stores multiple sets of code files. The code files include experimental condition slices and driving code that matches the experimental condition slices. The experimental condition slices include multiple liquid crystal process parameters.

[0034] The processing module is configured to receive the detection value of the liquid crystal response time, and in response to the detection value of the liquid crystal response time exceeding the preset specification, confirm the change parameters of the liquid crystal manufacturing process of the display panel, match the change parameters with multiple sets of code files, obtain the corresponding target driver code, and write the target driver code into the display panel so that the liquid crystal response time of the sample panel meets the preset specification.

[0035] To address the aforementioned technical problems, the third technical solution provided in this application is: to provide a display panel. The display panel includes a memory; the memory stores driving code, which is written using the system for reducing liquid crystal response time involved in the above technical solution, so that the liquid crystal response time of the display panel meets a preset specification.

[0036] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a method, system, and display panel for reducing liquid crystal response time. This method establishes multiple sets of code files during the experimental development phase before mass production of the display panel. These code files include experimental condition sheets and driving codes matching the experimental condition sheets. During the testing phase of a sample panel with modified liquid crystal process parameters, the liquid crystal response time of the sample panel is detected. If the detected value of the liquid crystal response time exceeds a preset specification, the modified liquid crystal process parameters of the sample panel are confirmed. The modified parameters are then matched with the established multiple sets of code files to obtain the corresponding target driving code. This target driving code is then written into the sample panel to ensure that the liquid crystal response time of the sample panel meets the preset specification, thus bringing the overall response time of the display panel closer to the specification center. This effectively improves the problems of excessive response time and dynamic ghosting caused by changes in liquid crystal process parameters. Furthermore, the above method is simple, practical, and low-cost, making it more suitable for implementation in automated production. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0038] Figure 1 This is a flowchart illustrating a method for reducing liquid crystal response time according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the process for creating a code file provided in one embodiment of this application;

[0040] Figure 3 This is a flowchart illustrating a method for reducing liquid crystal response time according to another embodiment of this application;

[0041] Figure 4 This is a schematic diagram of the data of a liquid crystal response time standard card provided in an embodiment of this application;

[0042] Figure 5 This is a schematic diagram of the structure of a system for reducing liquid crystal response time according to an embodiment of this application;

[0043] Figure 6 This is a schematic diagram of the structure of a display panel provided in one embodiment of this application.

[0044] Figure label:

[0045] 100 - System for reducing LCD response time; 10 - Control bus; 20 - Detection module; 30 - Processing module; 200 - Display panel; 201 - Memory. Detailed Implementation

[0046] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0047] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0049] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0050] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0051] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] Please see Figure 1 , Figure 1 This is a flowchart illustrating a method for reducing liquid crystal response time according to an embodiment of this application. In this embodiment, a method for reducing liquid crystal response time is provided, applicable to liquid crystal display panels where process parameters have been changed during the liquid crystal manufacturing process; the method specifically includes:

[0053] S10: Establish multiple sets of code files; the code files include experimental condition sheets and driving code that matches the experimental condition sheets, and the experimental condition sheets include multiple liquid crystal process parameters;

[0054] S20: Detect the liquid crystal response time of the sample panel and obtain the detected value of the liquid crystal response time;

[0055] S30: In response to the detection value of the liquid crystal response time exceeding the preset specification, confirm the change parameters of the liquid crystal manufacturing process of the sample panel;

[0056] S40: Match the changed parameters with multiple sets of code files to obtain the corresponding target driver code;

[0057] S50: Write the target driver code into the sample panel so that the LCD response time of the sample panel meets the preset specifications.

[0058] In this embodiment, step S10 is performed during the development stage of the display panel. The code file includes experimental condition sheets and matching driving codes. Specifically, each experimental condition sheet includes multiple liquid crystal process parameters, such as liquid crystal material parameters, pretilt angle parameters, liquid crystal cell thickness parameters, and driving voltage parameters. For each set of liquid crystal process parameters contained in a condition sheet, there is a matching set of driving codes. The experimental condition sheet and the driving code form a code file. The liquid crystal process parameters in different experimental condition sheets are different. During the display panel development stage, based on changes in liquid crystal process parameters, such as changes in liquid crystal material, pretilt angle, liquid crystal cell thickness, and / or driving voltage, multiple sets of experimental condition sheets can be established. Each set of experimental condition sheets corresponds to a matching set of driving codes. These driving codes ensure that the liquid crystal response time of the panel meeting the experimental condition sheet meets the preset specifications. Each set of experimental condition sheets and its matching driving codes are encapsulated into a code file to establish multiple sets of code files.

[0059] Specifically, a sample panel with modified liquid crystal process parameters is tested to detect its liquid crystal response time and obtain its measured value. If the measured value exceeds a preset specification, the modified liquid crystal process parameters of the sample panel are further confirmed to obtain the modified process parameters. The modified liquid crystal process parameters of the sample panel are then matched with multiple pre-established code files. Specifically, based on the modified parameters, experimental condition pieces with the same parameter values ​​are searched in the code files to obtain the target driver code. The driver code that matches the found experimental condition pieces is the target driver code. After obtaining the target code, it is written into the sample panel so that it runs in the sample panel during subsequent display operations, thereby ensuring that the liquid crystal response time of the sample panel meets the preset specification.

[0060] In this embodiment, by establishing multiple sets of experimental condition sheets and corresponding driver code files during the panel experimental development stage, and subsequently changing the liquid crystal process parameters of the sample panel, the code files are matched with the changed liquid crystal process parameters to find the target driver code that matches the sample panel. This target driver code is then written into the sample panel, thereby ensuring that the liquid crystal response time of the sample panel meets the preset specifications. This promotes the overall liquid crystal response time of the display panel to approach the specification center, effectively improving the problems of out-of-specification response time and dynamic ghosting caused by changes in liquid crystal process parameters. Furthermore, this method only requires establishing code files during the experimental development stage, then searching for matching experimental condition sheets in the established code files based on the changed parameters in the liquid crystal process of the sample panel to obtain the corresponding target driver code, and then writing the target driver code into the sample panel. This achieves the reduction of liquid crystal response time to meet the preset specifications. The process is simple, practical, and low-cost, making it more suitable for implementation in automated production and improving product competitiveness.

[0061] Please see Figure 2 , Figure 2 This is a schematic flowchart illustrating the creation of a code file according to an embodiment of this application. In this embodiment, a method for creating a code file is provided, specifically the method for step S10 described above. Step S10 specifically includes:

[0062] S11: Establish multiple sets of experimental condition sheets; each set of experimental condition sheets includes multiple liquid crystal process parameters, including liquid crystal material parameters, pretilt angle parameters, liquid crystal cell thickness parameters, and driving voltage parameters;

[0063] S12: Provides a test panel that meets the experimental conditions;

[0064] S13: Debug the test panel code to make the LCD response time of the test panel meet the preset specifications, so as to obtain the driving code that matches the experimental conditions.

[0065] S14: Encapsulate each set of experimental condition slices and the driving code that matches the experimental condition slices into a code file, and store the code file in memory.

[0066] In step S11, experimental condition sheets of commonly changed process parameters are established. Typically, commonly changed liquid crystal process parameters include liquid crystal material, pretilt angle, liquid crystal cell thickness and driving voltage. Therefore, the liquid crystal material parameters, pretilt angle parameters, liquid crystal cell thickness parameters and driving voltage parameters can be combined to form experimental condition sheets. The parameter values ​​in each experimental condition sheet are not exactly the same, forming multiple sets of experimental condition sheets.

[0067] Specifically, the experimental conditions are shown in Table 1 below:

[0068] Table 1 is a schematic table of experimental condition sheets provided in one embodiment of this application.

[0069] Experimental condition piece Liquid crystal material Pre-tilt angle Liquid crystal cell thickness Driving voltage Control group LC θ d m Experimental group A11 LC1 θ d m Experimental group A12 LC2 θ d m Experimental group A13 LC3 θ d m Experimental group A21 LC θ1 d m Experimental group A22 LC θ2 d m Experimental group A23 LC θ3 d m Experimental group A31 LC θ d1 m Experimental group A32 LC θ d2 m Experimental group A33 LC θ d3 m Experimental group A41 LC θ d m1 Experimental group A42 LC θ d m2 Experimental group A43 LC θ d m3

[0070] In this embodiment, each experimental condition sheet includes liquid crystal material parameters, pretilt angle parameters, liquid crystal cell thickness parameters, and driving voltage parameters. The experimental condition sheet for the control group includes the basic parameter values ​​typically used in liquid crystal manufacturing: liquid crystal material is LC, pretilt angle is θ, liquid crystal cell thickness is d, and driving voltage is m. As shown in Table 1, in experimental groups A11–A13, the liquid crystal material parameter is a modified parameter; in experimental groups A21–A23, the pretilt angle parameter is a modified parameter; in experimental groups A31–A33, the liquid crystal cell thickness parameter is a modified parameter; and in experimental groups A41–A43, the driving voltage parameter is a modified parameter. It is easy to see that in the experimental condition sheets established in Table 1, compared to the control group, only one parameter is changed in each experimental condition sheet. In other embodiments, compared to the control group, two, three, or all four parameters may be changed in each experimental condition sheet to ensure that the experimental condition sheets cover as many cases as possible, making the code archive more comprehensive.

[0071] In a specific embodiment, as shown in Table 2 below:

[0072] Table 2 is a data table for a specific embodiment of the experimental condition sheets provided in Table 1.

[0073] Experimental condition piece Liquid crystal material Pre-tilt angle Liquid crystal cell thickness Driving voltage Control group Jiangsu Hengcheng 88.5° 3.3 μm 13.5V Experimental group A11 Chengzhi Yonghua 88.5° 3.3 μm 13.5V Experimental group A12 Hanlang Liquid Crystal 88.5° 3.3 μm 13.5V Experimental group A13 Baiyi Shikong 88.5° 3.3 μm 13.5V Experimental group A21 Jiangsu Hengcheng 88.9° 3.3 μm 13.5V Experimental group A22 Jiangsu Hengcheng 89.1° 3.3 μm 13.5V Experimental group A23 Jiangsu Hengcheng 88.0° 3.3 μm 13.5V Experimental group A31 Jiangsu Hengcheng 88.5° 3.0 μm 13.5V Experimental group A32 Jiangsu Hengcheng 88.5° 3.5 μm 13.5V Experimental group A33 Jiangsu Hengcheng 88.5° 2.8 μm 13.5V Experimental group A41 Jiangsu Hengcheng 88.5° 3.3 μm 13.0V Experimental group A42 Jiangsu Hengcheng 88.5° 3.3 μm 14.0V Experimental group A43 Jiangsu Hengcheng 88.5° 3.3 μm 14.5V

[0074] Specifically, in the experimental condition sheets of the control group, the liquid crystal material was Jiangsu Hecheng, the pretilt angle was 88.5°, the liquid crystal cell thickness was 3.3μm, and the driving voltage was 13.5V. In the experimental condition sheets of experimental groups A11 to A13, the liquid crystal material parameters were changed to Chengzhi Yonghua, Hanlang Liquid Crystal, and Bayi Space, respectively, while other parameters remained the same as the control group; in the experimental condition sheets of experimental groups A21 to A23, the pretilt angle parameters were changed to 88.9°, 89.1°, and 88.0°, respectively, while other parameters remained the same as the control group; in the experimental condition sheets of experimental groups A31 to A33, the liquid crystal cell thickness parameters were changed to 3.0μm, 3.5μm, and 2.8μm, respectively, while other parameters remained the same as the control group; in the experimental condition sheets of experimental groups A41 to A43, the driving voltage parameters were changed to 13.0V, 14.0V, and 14.5V, respectively, while other parameters remained the same as the control group. In this embodiment, excluding the control group, a total of 12 experimental condition sheets were established. In actual production, this is not limited to this number, and more experimental condition sheets can be included. For example, more experimental condition sheets with different values ​​of liquid crystal material parameters, pretilt angle parameters, liquid crystal cell thickness parameters, and driving voltage parameters can be added.

[0075] Specifically, in the established multiple sets of experimental condition sheets, at least one liquid crystal process parameter in any set of experimental condition sheets differs from the other sets. That is, in any two sets of experimental condition sheets, at least one liquid crystal process parameter has a different value. This can be understood as, compared with the conventional predetermined liquid crystal process, at least one liquid crystal process parameter in the experimental condition sheet has changed, and the changed liquid crystal process parameter is the modified liquid crystal process parameter. For example, in the experimental condition sheet, the liquid crystal material changes, while the remaining liquid crystal process parameters remain unchanged; or, in the experimental condition sheet, both the liquid crystal material and the pretilt angle change, while the remaining liquid crystal process parameters remain unchanged, etc. This forms multiple different sets of experimental condition sheets, which as much as possible include all situations in which the liquid crystal process parameters are changed to meet user needs during production, making the subsequently established code files more comprehensive.

[0076] It is easy to understand that in other embodiments, the experimental condition sheet may also include other process parameters that may change, not limited to the four liquid crystal process parameters mentioned above, to further improve the comprehensiveness of the code file.

[0077] In step S12, after designing and establishing multiple sets of experimental condition sheets, at least one test panel that meets the conditions of each set of experimental condition sheets can be prepared. The test panel corresponding to each set of experimental condition sheets is the same as the test panel corresponding to other sets of experimental condition sheets except for the changed parameters in the corresponding experimental condition sheets. This makes the subsequent code debugging results more accurate, so that after the corresponding driver code is written, the liquid crystal response time of the sample panel of the corresponding experimental condition sheet can meet the preset specifications and is closer to the standard value.

[0078] In step S13, the test panel provided in step S12 is used to debug the code for each set of experimental condition chips, ensuring that the LCD response time of the test panel meets the preset specifications, thereby obtaining driving code matching each set of experimental condition chips. By debugging the code on the test panel, each set of experimental condition chips is matched with a corresponding set of driving code. Specifically, in step S14, after obtaining each set of driving code, the set of driving code and its matching set of experimental condition chips are packaged into a code file, and the code file is stored in the memory, thereby creating multiple sets of code files and storing them in the memory.

[0079] Specifically, the code archive can be shown in Table 3 below:

[0080] Table 3 is a schematic table of code files provided in one embodiment of this application.

[0081]

[0082]

[0083] In Table 3, the control group consists of experimental condition sheets formed by the initial liquid crystal process parameters and the corresponding initial drive code C. During testing, the code for each set of experimental condition sheets is debugged. Based on the initial drive code C, the initial drive code C is adjusted to ensure that the liquid crystal response time of the test panel for the corresponding experimental condition sheet meets the preset specifications. After debugging the code for each set of time sheets, the debugged drive code is obtained. This drive code and the set of experimental condition sheets constitute a code file. It can be understood that a set of code files corresponds to a display panel with modified liquid crystal process parameters; that is, the set of code files matches the display panel.

[0084] Please see Figure 3 , Figure 3This is a flowchart illustrating a method for reducing liquid crystal response time according to another embodiment of this application. In this embodiment, sample panels whose liquid crystal process parameters have been changed after the mass production stage are selected, and these sample panels are tested. Specifically, in step S20, a response time tester is used to test the liquid crystal response time of the sample panels. The testing accuracy can be a 5×5 matrix, or a 16×16 matrix, or a 32×32 matrix, or a 64×64 matrix, which can be selected according to actual needs. In this embodiment, a 16×16 matrix is ​​used as an example, and the measured gray levels are 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, and 255.

[0085] Specifically, when detecting the liquid crystal response time of a sample panel, the detection value of the liquid crystal response time can be obtained by detecting the grayscale transition time of the central area of ​​the sample panel. For example, the response time of the sample panel from grayscale 0 to grayscale 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, and 255, and the response time from grayscale 16 to grayscale 0, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 192, 208, 224, 240, and 255, etc., is measured with a detection precision of the aforementioned 16×16 matrix, thereby obtaining the detection value of each point.

[0086] Specifically, the method also includes the following steps:

[0087] S31: Determine whether the detected value of the LCD response time exceeds the preset specification;

[0088] S32: In response to the fact that the detected value of the LCD response time does not exceed the preset specification, the sample panel maintains the original driving code.

[0089] In step S31, the detected value is compared with a standard value for the response time to determine whether the detected value exceeds a preset specification. Specifically, it can be determined whether the average value of the detected value and the detected value at a single point both meet the preset specification. If neither the average value of the detected value nor the detected value at a single point exceeds the preset specification, the sample panel maintains its original driving code, and no new driving code is written to the sample panel.

[0090] Specifically, step S31 includes:

[0091] S311: Calculate the difference between the detected value of the liquid crystal response time and the standard value of the standard card; the standard card includes the standard value of the liquid crystal response time required for the standard panel to change from the first preset grayscale to the second preset grayscale;

[0092] S312: Determine whether the difference exceeds the preset specification.

[0093] Specifically, after detecting the detection value of each point in the 16×16 matrix, the detection mean of the detection value is calculated, and the first difference between the detection mean and the standard mean is calculated. At the same time, the second difference between the detection value of each point and the corresponding single-point standard value is calculated. If neither the first difference nor the second difference exceeds the preset specification, the sample panel keeps the original driving code unchanged.

[0094] Please see Figure 4 , Figure 4 This is a schematic diagram of a liquid crystal response time standard card provided in an embodiment of this application. This embodiment provides a liquid crystal response time standard card, which includes standard values ​​for the response time of each point in the aforementioned 16×16 matrix, thereby providing a judgment basis for step S31. Specifically, the standard card is stored in the storage unit of the processing module or control module. After obtaining the detection value, the detection value is compared with the corresponding standard value in the standard card to perform the aforementioned calculation, thereby determining whether the sample panel exceeds the preset specification. Specifically, the preset specification is the fluctuation range of the standard value of the liquid crystal response time, with a fluctuation range of 0-2ms, which can be understood as the error range; the specific value of the preset specification can be 0.3ms, 0.5ms, 0.8ms, 1.0ms, 1.2ms, 1.5ms, 1.7ms, or 2.0ms, and can be set according to actual needs. For example, the detection time for a sample panel to transition from grayscale 0 to grayscale 16 is 15ms. The standard time for this transition, obtained from the standard chart, is 13.6ms. The difference between the detected value and the standard value is 1.4ms. If the preset specification is 1.0ms, the detected value exceeds the preset range; if the preset specification is 2.0ms, the detected value does not exceed the preset range. By comparing the detected value of each point with the standard value, it can be determined whether the sample panel exceeds the specification.

[0095] like Figure 3 As shown, further, if the detected value of the liquid crystal response time exceeds the preset specification, then proceed to step S30, which specifically includes:

[0096] S33: Retest the liquid crystal response time of the sample panel to obtain the retested value of the liquid crystal response time;

[0097] S34: In response to the retest value of the liquid crystal response time exceeding the preset specification, confirm the change parameters of the liquid crystal manufacturing process of the sample panel.

[0098] In this embodiment, if the detected value of the liquid crystal response time of the sample panel exceeds the preset specification, the liquid crystal response time of the sample panel is retested to confirm whether the liquid crystal response time of the sample panel exceeds the preset specification, thereby avoiding inaccurate detection results due to detection errors or incorrect detection methods. Simultaneously, to avoid errors in the detection instrument, a different detection instrument can be used for the retest. If the retest value does not exceed the preset specification, step S32 is executed, and the sample panel retains its original driver code. The specific judgment rules are the same as described above and can be found in the detailed description above; they will not be repeated here. If the retest value exceeds the preset specification, step S34 is executed, confirming the change parameters of the liquid crystal manufacturing process of the sample panel in response to the retest value of the liquid crystal response time exceeding the preset specification.

[0099] Specifically, after confirming the changed parameters of the liquid crystal manufacturing process of the sample panel and obtaining the changed process parameters of the sample panel in the liquid crystal manufacturing process, step S40 is executed to match the changed parameters of the liquid crystal manufacturing process of the sample panel with the multiple sets of code files that have been established. Specifically, according to the changed parameters, the experimental condition piece with the same parameter value is searched in the code file to obtain the target driving code. The driving code that matches the found experimental condition piece is the target driving code. After obtaining the target code, step S50 is executed to burn the target driving code into the sample panel so that the target code runs in the sample panel in subsequent display work, thereby making the liquid crystal response time of the sample panel meet the preset specifications.

[0100] Furthermore, to reduce the occurrence of errors in each step, after step S50, the method further includes:

[0101] S60: Restart the sample panel;

[0102] S70: Retest the liquid crystal response time of the sample panel to confirm that the liquid crystal response time meets the preset specifications.

[0103] Specifically, after burning the corresponding target driver code into the sample panel, the sample panel is restarted, and through retesting and comparison with the standard card, it is confirmed that the liquid crystal response time of the sample panel meets the preset specifications. This avoids errors occurring in a certain step when executing the method, which could cause the liquid crystal response time of the sample panel to still not meet the preset specifications.

[0104] The above method can effectively improve the problem of dynamic ghosting caused by excessive liquid crystal response time due to changes in process parameters of display panels. Moreover, the method is simple, practical and low-cost, which is more conducive to its promotion and implementation in automated production and improves product competitiveness.

[0105] Please see Figure 5 , Figure 5This is a schematic diagram of a system for reducing liquid crystal response time according to an embodiment of this application. In this embodiment, a system 100 for reducing liquid crystal response time is provided. The system 100 is applied to a display panel 200. The system 100 includes a control bus 10, a detection module 20, and a processing module 30. The system 100 can detect the liquid crystal response time of the display panel 200 and write the corresponding driver code into the display panel 200, thereby reducing the liquid crystal response time of the display panel 200 and improving the effect of dynamic ghosting.

[0106] Specifically, the display panel 200, the detection module 20, and the processing module 30 are all electrically connected to the transmission bus for signal transmission. The detection module 20 is used to detect the liquid crystal response time of the display panel 200; the processing module 30 stores multiple sets of code files, which are the same as or similar to the code files mentioned above and can achieve the same technical effects, as detailed above.

[0107] Specifically, the processing module 30 receives the detected value of the liquid crystal response time, and in response to the detected value exceeding a preset specification, confirms the change parameters of the liquid crystal manufacturing process of the display panel 200, matches the changed parameters with multiple sets of code files, obtains the corresponding target driver code, and writes the target driver code into the display panel 200 so that the liquid crystal response time of the sample panel meets the preset specification. Specifically, the above-described procedure executed by the processing module 30 is the same as or similar to the method for reducing liquid crystal response time described in the above embodiments, and can achieve the same technical effect. For details, please refer to the detailed description above; further elaboration is not provided here.

[0108] Specifically, the processing module 30 can be a processor with computing and control functions, such as a computer. In actual production, when customer complaints arise after panel mass production, such as insufficient contrast requiring an increase in the pre-tilt angle parameter, changes in the pre-tilt angle parameter will affect the measured response time of the panel. The difference between this measured value and the standard value is calculated and compared. If the difference meets the preset specification, the change in the pre-tilt angle parameter is small, and its impact on the response time is minimal, insufficient to cause dynamic ghosting. The change in the liquid crystal process parameters is within the safe range set by the preset specification, i.e., it meets the preset specification, so the panel remains unchanged and no action is required. If the change in the pre-tilt angle parameter is large, and the measured liquid crystal response time exceeds the preset specification, the computer automatically searches for the corresponding matching drive code under the pre-tilt angle change. After automatically burning it into the display panel 200, the liquid crystal response time drive intensity of the display panel 200 will automatically increase or decrease until the measured liquid crystal response time meets the preset specification, and the overall level approaches the standard value, thereby reducing the liquid crystal response time and effectively improving the dynamic ghosting problem.

[0109] Please see Figure 6 ,Figure 6 This is a schematic diagram of the structure of a display panel provided in one embodiment of this application. In this embodiment, a display panel 200 is provided, which is a panel with modified liquid crystal process parameters. The display panel 200 includes a memory 201, which stores driving code to drive the display panel 200 to display images. The driving code is written by the system 100 for reducing liquid crystal response time provided in the above embodiment, so that the liquid crystal response time of the display panel 200 meets the preset specifications, thereby avoiding the phenomenon of dynamic ghosting caused by the change of liquid crystal process parameters leading to excessive liquid crystal response time.

[0110] The above are merely embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A method of reducing the response time of a liquid crystal, characterized by, The method comprises the following steps: establishing a plurality of code archives, wherein each code archive comprises an experimental condition sheet and a driving code matched with the experimental condition sheet, and the experimental condition sheet comprises a plurality of liquid crystal process parameters; detecting a liquid crystal response time of a sample panel to obtain a detection value of the liquid crystal response time; in response to the detection value of the liquid crystal response time exceeding a preset specification, confirming a change parameter of a liquid crystal process of the sample panel; matching the change parameter with a plurality of code archives to obtain a corresponding target driving code; writing the target driving code into the sample panel to make the liquid crystal response time of the sample panel meet the preset specification.

2. The method of reducing liquid crystal response time according to claim 1, wherein, The step of establishing a plurality of code archives comprises: establishing a plurality of experimental condition sheets, wherein each experimental condition sheet comprises a plurality of liquid crystal process parameters, and the liquid crystal process parameters comprise a liquid crystal material parameter, a pre-tilt angle parameter, a liquid crystal cell thickness parameter and a driving voltage parameter; providing a test panel meeting the experimental condition sheet; performing code debugging on the test panel to make the liquid crystal response time of the test panel meet the preset specification to obtain a driving code matched with the experimental condition sheet; encapsulating each experimental condition sheet and the driving code matched with the experimental condition sheet as the code archive, and storing the code archive in a memory.

3. The method of reducing liquid crystal response time according to claim 2, wherein, At least one liquid crystal process parameter in any one of the experimental condition sheets is different from those in other experimental condition sheets.

4. The method of reducing liquid crystal response time according to claim 1, wherein, Before the step of responding to the detection value of the liquid crystal response time exceeding the preset specification, the method further comprises: judging whether the detection value of the liquid crystal response time exceeds the preset specification; in response to the detection value of the liquid crystal response time not exceeding the preset specification, maintaining the original driving code of the sample panel.

5. The method of reducing liquid crystal response time according to claim 4, wherein, The step of judging whether the detection value of the liquid crystal response time exceeds the preset specification comprises: calculating a difference between the detection value of the liquid crystal response time and a standard value of a standard card, wherein the standard card comprises the standard value of the liquid crystal response time required for a standard panel to change from a first preset gray scale to a second preset gray scale; judging whether the difference exceeds the preset specification.

6. The method of reducing liquid crystal response time according to claim 5, wherein, The preset specification is a fluctuation range of the standard value of the liquid crystal response time, and the fluctuation range is 0-2 ms.

7. The method of reducing liquid crystal response time according to claim 1, wherein, The step of responding to the detection value of the liquid crystal response time exceeding the preset specification to confirm the change parameter of the liquid crystal process of the sample panel comprises: if the detection value of the liquid crystal response time exceeds the preset specification, retesting the liquid crystal response time of the sample panel to obtain a retest value of the liquid crystal response time; in response to the retest value of the liquid crystal response time exceeding the preset specification, confirming the change parameter of the liquid crystal process of the sample panel.

8. The method of reducing liquid crystal response time according to claim 1, wherein, After the step of writing the target driving code into the sample panel, the method further comprises: restarting the sample panel; retesting the liquid crystal response time of the sample panel to confirm that the liquid crystal response time meets the preset specification.

9. A system for reducing liquid crystal response time, applied to a display panel, characterized in that, The system comprises: a control bus for transmitting signals, and the display panel is electrically connected to the control bus. A detection module is electrically connected to the control bus and configured to detect a liquid crystal response time of the display panel. A processing module is electrically connected to the control bus and stores a plurality of code archives, wherein each code archive includes an experimental condition sheet and a driving code matched with the experimental condition sheet, and the experimental condition sheet includes a plurality of liquid crystal process parameters. The processing module is configured to receive a detection value of the liquid crystal response time, and in response to the detection value of the liquid crystal response time exceeding a preset specification, to determine a change parameter of a liquid crystal process of the display panel, to match the change parameter with the plurality of code archives, to obtain a target driving code, and to write the target driving code into the display panel, so that the liquid crystal response time of the display panel meets the preset specification.

10. A display panel, characterized by, The display panel includes a memory, and the memory stores a driving code written by the system for reducing the liquid crystal response time, so that the liquid crystal response time of the display panel meets a preset specification.

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