Quick-response liquid crystal display

Abstract

The invention relates to the technical field of liquid crystal display, in particular to a quick-response liquid crystal display, which comprises a partition unit, a liquid crystal display control unit, a liquid crystal display control unit, a liquid crystal display control unit, a liquid crystal display control unit and a liquid crystal display control unit, the test unit is used for performing simulation test on the liquid crystal display and acquiring different parameters of the liquid crystal display; the analysis unit is used for generating liquid crystal display characterization values of different response areas based on the simulation test and judging corresponding response strategies; the modeling unit is used for adjusting the magnetic field intensity of the magnetic field generator; and the detection unit is used for detecting the response time of different response areas of the liquid crystal display in the state of playing the video sequence so as to adjust the liquid crystal display. According to the liquid crystal display, all the units are matched with one another, rotation assistance is effectively carried out on the liquid crystal monomer in the liquid crystal display, and meanwhile the accuracy of the quick-response liquid crystal display is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display, and in particular to a fast-response liquid crystal display. Background Art

[0002] With the development of science and technology and society, liquid crystal displays are increasingly widely used in all walks of life. Consumers have higher and higher requirements for the visual experience of display devices. Fast-response liquid crystal displays can provide smoother and clearer pictures, which can bring better visual enjoyment whether watching high-definition movies, playing games or doing daily office work. Fast-response liquid crystal displays can quickly present color changes and details, reduce picture delays, and improve work efficiency and accuracy. Traditional liquid crystal displays achieve screen switching by applying an electric field to drive the rotation of liquid crystal molecules, but the liquid crystal molecules are prone to rotating too slowly or over-rotating during the rotation process.

[0003] Chinese patent application publication number: CN103592792A discloses a fast-response in-plane switching mode liquid crystal display. The invention provides a fast-response in-plane switching mode liquid crystal display, which comprises: components from top to bottom: an upper polarizer, a compensation film, an upper substrate, a middle portion, a lower substrate and a lower polarizer; the middle portion includes an electrode layer, a transparent protrusion and a liquid crystal layer. The present invention reduces the thickness of some areas in the liquid crystal layer by introducing a protrusion structure. Since the response time is proportional to the square of the liquid crystal layer thickness, the response speed of the liquid crystal in the thinner area of ​​the liquid crystal layer is accelerated, and the response speed of the thicker area is also accelerated, thereby effectively improving the response speed of the liquid crystal monomer.

[0004] However, the above method has the following problems: simply changing the thickness of the liquid crystal cell of the liquid crystal display has limited effect on improving the response time of the liquid crystal display and has limited effect on driving the response speed of the thicker area. Summary of the Invention

[0005] To this end, the present invention provides a fast-response liquid crystal display to overcome the problem in the prior art that the response time of the liquid crystal display is improved by simply changing the thickness of the liquid crystal cell of the liquid crystal display, but the effect of improving the response speed of the liquid crystal display is limited and the effect of driving the response speed of the thicker area is limited.

[0006] To achieve the above object, the present invention provides a fast-response liquid crystal display, comprising:

[0007] A partitioning unit is used to divide the liquid crystal display into several response areas from the center to the periphery, and to add liquid crystal monomers with different viscosity coefficients by setting several microcavities in the liquid crystal cell areas corresponding to the different response areas;

[0008] a testing unit connected to the partitioning unit, for performing a simulation test on the liquid crystal display and obtaining display brightness, operating temperature and grayscale response time of different response areas of the liquid crystal display;

[0009] an analyzing unit connected to the testing unit, configured to generate liquid crystal display characterization values ​​for different response areas based on the simulation test, determine response levels for the different response areas based on the liquid crystal display characterization values, and determine corresponding response strategies based on the response levels;

[0010] a modeling unit, connected to the testing unit and the analyzing unit, respectively, for constructing a temperature magnetic field model based on the simulation test, acquiring a video sequence, predicting a rotation angle of the liquid crystal monomer at each pixel position based on the video sequence, and adjusting a magnetic field strength of a magnetic field generator based on the rotation angle and the temperature magnetic field model;

[0011] A detection unit is connected to the partitioning unit and the modeling unit respectively, and is used to detect the response time of different response areas of the liquid crystal display when playing the video sequence, and determine whether the corresponding response area meets the preset standard based on the difference in response time of adjacent response areas, or adjust the viscosity coefficient of the liquid crystal monomer in the corresponding response area.

[0012] Furthermore, the analyzing unit sequentially determines the response levels of different response areas on the liquid crystal display according to the liquid crystal display characteristic value and a plurality of preset display characteristic values.

[0013] Furthermore, the corresponding response strategy includes, among others,

[0014] If the response level is the first response level, determining to use an electric field plus a reverse magnetic field to drive the liquid crystal monomer;

[0015] If the response level is the second response level, determining to use an electric field to drive the liquid crystal monomer;

[0016] If the response level is the third response level, determining to use an electric field plus a forward magnetic field to drive the liquid crystal monomer;

[0017] The reverse magnetic field is a magnetic field that prevents the liquid crystal monomer from rotating from an initial state, and the forward magnetic field is a magnetic field that pushes the liquid crystal monomer to rotate from an initial state.

[0018] Furthermore, the modeling unit turns on the magnetic field generator during the previous frame display process under the condition that the rotation angle is greater than or equal to a preset angle, wherein the preset angle is positively correlated with the magnetic field strength of the magnetic field generator set at the pixel point.

[0019] Further, the test unit adjusts the magnetic field strength of the magnetic field generator corresponding to different response regions at different working temperatures to obtain the magnetic field strength corresponding to the rotation of the liquid crystal monomer by different angles to generate the temperature magnetic field model.

[0020] Further, the modeling unit adjusts the magnetic field strength of the magnetic field generator corresponding to the pixel point at the working temperature based on the rotation angle and the temperature magnetic field model when the working temperature is less than or equal to a preset temperature, and the modeling unit displays an alarm when the working temperature is greater than the preset temperature and determines the temperature abnormality reason according to the temperature difference between the abnormal temperature and the preset temperature, and the preset temperature is positively correlated with the backlight power.

[0021] Further, the detection unit compares each of the response times with a preset time, and determines to calculate a response time difference value or to adjust the viscosity coefficient of the liquid crystal monomer corresponding to the response region according to the comparison result, wherein,

[0022] If the response time is greater than or equal to the preset time, it is determined to adjust the viscosity coefficient of the liquid crystal monomer corresponding to the response region;

[0023] If the response time is less than the preset time, it is determined to calculate a response time difference value,

[0024] The preset time is negatively correlated with the driving voltage of the liquid crystal display.

[0025] Further, the detection unit detects the response time of different response regions of the liquid crystal display in the state of playing the video sequence, selects the response time of any adjacent response region to calculate and generate a plurality of response time difference values, and compares the response time difference values with a preset time difference value in turn, and determines whether each response region corresponding to the response time difference value meets a preset standard according to the comparison result.

[0026] Further, the detection unit calculates and generates the average response time of a plurality of response regions on the liquid crystal display, and compares the response time of each response region that does not meet the preset standard with the average response time in turn, and adjusts the setting density of the microcavity according to the comparison result.

[0027] Further, the liquid crystal display characteristic value is determined by the display brightness, working temperature and gray scale response time obtained in the simulation test.

[0028] Compared with the prior art, the beneficial effect of the present invention is that the present invention divides the liquid crystal display into different response areas by using a microcavity structure, effectively avoiding the change in the liquid crystal viscosity coefficient due to the change in temperature during the use of the liquid crystal display, which makes the resistance to the rotation of the liquid crystal monomer inconsistent. At the same time, according to different response areas, liquid crystal monomers with different viscosity coefficients are injected, and different driving voltages are used to eliminate the problem of display difference at different temperatures of the liquid crystal display, avoiding the change in the liquid crystal viscosity coefficient due to temperature change, and then making the rotation resistance of the liquid crystal monomer inconsistent. Regardless of how the ambient temperature changes, the liquid crystal display can work more stably, reducing the difference in display effect caused by temperature fluctuations. Under different temperature conditions, through special design for different response areas, the display difference can be effectively eliminated, ensuring that the image color, contrast, brightness and other parameters remain stable and accurate, providing users with a consistent visual experience, and effectively improving the accuracy of fast-responding liquid crystal displays.

[0029] Furthermore, the present invention simulates a liquid crystal display and collects the display brightness, operating temperature and grayscale response time of different response areas of the liquid crystal display during the test process to generate a liquid crystal display characterization value. The response level of the different response areas is determined according to the liquid crystal display characterization value, and the corresponding response strategy is determined according to the response level. The single control mode that relies on voltage drive is changed, and a magnetic field is introduced as an auxiliary driving force to achieve multi-dimensional precise control of the movement of liquid crystal molecules, compensate for the physical parameter drift caused by temperature fluctuations, realize pixel-level dynamic compensation, avoid the increase in power consumption or over-drive artifacts caused by traditional global control, improve the control efficiency and picture authenticity, eliminate the response time fluctuation caused by temperature, and further improve the accuracy of the fast-response liquid crystal display.

[0030] Furthermore, the present invention constructs a temperature magnetic field model, analyzes the acquired video sequence, and predicts the rotation angle of the liquid crystal monomer in each pixel point, thereby adjusting the magnetic field strength of the magnetic field generator of each pixel point, and converting the physical parameter drift caused by temperature into a quantifiable magnetic field compensation amount, thereby avoiding the power consumption waste or insufficient response caused by traditional global control, and cooperating with the electric drive to rotate the liquid crystal monomer, making the rotation faster, and further improving the accuracy of the fast-response liquid crystal display.

[0031] Further, the present application can determine whether each response area meets the standard by analyzing the response time of the liquid crystal display playing the video, and can adjust the processing parameters of the next liquid crystal display processing, realize regional quality control, avoid the defect missed judgment caused by traditional global detection, accurately locate the problem source through partition detection, establish a defect prediction model through machine learning analysis of historical detection data, trigger process calibration in advance, and adjust the setting density of the micro-cavity structure according to the response time, improve the synchronization of each response area of the liquid crystal display, and further improve the accuracy of the fast response liquid crystal display. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a structural block diagram of the fast response liquid crystal display of the present application;

[0033] Figure 2 is a logic diagram for determining whether to start the magnetic field generator in the embodiment of the present application;

[0034] Figure 3 is a logic diagram for determining whether to adjust the viscous coefficient in the embodiment of the present application;

[0035] Figure 4 is a logic diagram for determining whether to adjust the setting density of the micro-cavity in the embodiment of the present application. DETAILED DESCRIPTION

[0036] In order to make the purpose and advantages of the present application clearer and more apparent, the present application will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present application, and do not limit the present application.

[0037] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0038] It should be noted that in the description of the present application, the terms "up", "down", "left", "right", "in", "out" and the like indicate the direction or positional relationship terms based on the direction or positional relationship shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] It can be understood that the liquid crystal monomer involved in the present application is a liquid crystal doped with magnetic particles, which can rotate in a magnetic field.

[0041] See also Figure 1 As shown in FIG, which is a structural block diagram of a fast-response liquid crystal display according to the present invention, an embodiment of the present invention provides a fast-response liquid crystal display, comprising:

[0042] A partitioning unit is used to divide the liquid crystal display into several response areas from the center to the periphery, and to add liquid crystal monomers with different viscosity coefficients by setting several microcavities in the liquid crystal cell areas corresponding to the different response areas;

[0043] A test unit connected to the partition unit for performing a simulation test on the liquid crystal display and obtaining the display brightness, operating temperature and grayscale response time of different response areas of the liquid crystal display;

[0044] an analysis unit connected to the test unit, configured to generate liquid crystal display characterization values ​​for different response areas based on simulation tests, determine response levels for the different response areas based on the liquid crystal display characterization values, and determine corresponding response strategies based on the response levels;

[0045] a modeling unit, connected to the testing unit and the analyzing unit, for constructing a temperature magnetic field model based on the simulation test, acquiring a video sequence, predicting the rotation angle of the liquid crystal monomer at each pixel point based on the video sequence, and adjusting the magnetic field strength of the magnetic field generator based on the rotation angle and the temperature magnetic field model;

[0046] The detection unit is connected to the partitioning unit and the modeling unit respectively, and is used to detect the response time of different response areas of the liquid crystal display when playing a video sequence, and determine whether the corresponding response area meets the preset standard based on the difference in response time between adjacent response areas, or adjust the viscosity coefficient of the liquid crystal monomer in the corresponding response area.

[0047] It is understood that the microcavity can be optionally a columnar microcavity or a honeycomb grid, which is periodically arranged in the liquid crystal box, with an optional diameter of 5-20 μm and a height of 2-5 μm (matching the thickness of the liquid crystal layer).

[0048] It can be understood that a micro spiral coil is integrated under each pixel electrode, with an optional diameter of 10-20 μm, to generate a magnetic field through current.

[0049] Specifically, the present invention divides the liquid crystal display into different response areas by using a microcavity structure, effectively avoiding the change in the liquid crystal viscosity coefficient due to the change in temperature during the use of the liquid crystal display, which makes the resistance to the rotation of the liquid crystal monomer inconsistent. At the same time, according to different response areas, liquid crystal monomers with different viscosity coefficients are injected, and different driving voltages are used to eliminate the problem of display difference at different temperatures of the liquid crystal display, avoiding the change in the liquid crystal viscosity coefficient due to temperature change, and then the problem of inconsistent rotation resistance of the liquid crystal monomer. Regardless of how the ambient temperature changes, the liquid crystal display can work more stably, reducing the difference in display effect caused by temperature fluctuations. Under different temperature conditions, through special design for different response areas, the display difference can be effectively eliminated, ensuring that the image color, contrast, brightness and other parameters remain stable and accurate, providing users with a consistent visual experience, and effectively improving the accuracy of fast-responding liquid crystal displays.

[0050] Specifically, the analyzing unit sequentially determines the response levels of different response areas on the liquid crystal display according to the liquid crystal display characteristic value and a plurality of preset display characteristic values.

[0051] Specifically, if the liquid crystal display characteristic value is greater than or equal to the first preset display characteristic value, the response level of the corresponding response area on the liquid crystal display is determined to be the first response level;

[0052] If the liquid crystal display characteristic value is less than the first preset display characteristic value and greater than or equal to the second preset display characteristic value, determining that the response level of the corresponding response area on the liquid crystal display is the second response level;

[0053] If the liquid crystal display characteristic value is less than the second preset display characteristic value, determining that the response level of the corresponding response area on the liquid crystal display is the third response level;

[0054] In a specific embodiment, the first preset display characterization value is set to 20, and the second preset display characterization value is set to 15. If the liquid crystal display characterization value is 26 and is greater than the first preset display characterization value, then the response level of the corresponding response area on the liquid crystal display is determined to be the first response level;

[0055] If the liquid crystal display characterization value is 18, which is less than the first preset display characterization value and greater than the second preset display characterization value, then determining that the response level of the corresponding response area on the liquid crystal display is the second response level;

[0056] If the liquid crystal display characterization value is 12 and is smaller than the second preset display characterization value, determining that the response level of the corresponding response area on the liquid crystal display is the third response level;

[0057] The first preset display characteristic value is greater than the second preset display characteristic value, and is positively correlated with the backlight power of the liquid crystal display.

[0058] It can be understood that, as the backlight power of the LCD increases, the brightness of the LCD increases, and the operating temperature increases, the viscosity coefficient of the liquid crystal decreases as the temperature increases, and the grayscale response time decreases. Therefore, the first preset display characteristic value and the second preset display characteristic value are respectively positively correlated with the backlight power of the LCD.

[0059] Optionally, taking a 27-inch display as an example, the backlight power is 30W, the first preset display characterization value is 15, and the second preset display characterization value is 10;

[0060] The backlight power is 60W, the first preset display characterization value is 20, and the second preset display characterization value is 15;

[0061] The backlight power is 80W, the first preset display characterization value is 24, and the second preset display characterization value is 18.

[0062] Specifically, the corresponding response strategies include, among others,

[0063] If the response level is the first response level, it is determined that the liquid crystal monomer is driven by using an electric field plus a reverse magnetic field;

[0064] If the response level is the second response level, it is determined that the liquid crystal monomer is driven by an electric field;

[0065] If the response level is the third response level, it is determined that the liquid crystal monomer is driven by using an electric field plus a positive magnetic field;

[0066] The reverse magnetic field is a magnetic field that prevents the liquid crystal monomer from rotating from an initial state, and the forward magnetic field is a magnetic field that promotes the liquid crystal monomer to rotate from an initial state.

[0067] Specifically, the present invention simulates a liquid crystal display and collects the display brightness, operating temperature and grayscale response time of different response areas of the liquid crystal display during the test to generate a liquid crystal display characterization value. The response level of the different response areas is determined according to the liquid crystal display characterization value, and the corresponding response strategy is determined according to the response level. The single control mode that relies on voltage drive is changed, and a magnetic field is introduced as an auxiliary driving force to achieve multi-dimensional precise control of the movement of liquid crystal molecules, compensate for the physical parameter drift caused by temperature fluctuations, realize pixel-level dynamic compensation, avoid the increase in power consumption or over-drive artifacts caused by traditional global control, improve the control efficiency and picture authenticity, eliminate the response time fluctuations caused by temperature, and further improve the accuracy of fast-response liquid crystal displays.

[0068] See also Figure 2As shown, it is a logic diagram of determining whether to turn on the magnetic field generator in an embodiment of the present invention. The modeling unit turns on the magnetic field generator during the previous frame display process under the condition that the rotation angle is greater than or equal to the preset angle, wherein the preset angle is positively correlated with the magnetic field strength of the magnetic field generator set at the pixel point.

[0069] If the rotation angle is less than the preset angle, it is determined that the magnetic field generator is not turned on;

[0070] In a specific embodiment, the preset angle is set to 45 degrees, and if the rotation angle is 60 degrees and is greater than the preset angle, it is determined that the magnetic field generator is turned on during the display of the previous frame;

[0071] If the rotation angle is 30 degrees, which is less than the preset angle, it is determined that the magnetic field generator is not turned on.

[0072] It can be understood that the greater the magnetic field strength of the magnetic field generator set at the pixel point, the greater the magnetic force that can drive the liquid crystal monomer to rotate, so the preset angle is positively correlated with the magnetic field strength of the magnetic field generator set at the pixel point.

[0073] Optionally, the magnetic field strength of the magnetic field generator set at the pixel position is 0.8T, and the preset angle is 60 degrees;

[0074] The magnetic field generator set at the pixel point has a magnetic field strength of 0.5T and a preset angle of 45 degrees;

[0075] The magnetic field strength of the magnetic field generator set at the pixel point is 0.3T, and the preset angle is 30 degrees.

[0076] Specifically, the test unit adjusts the magnetic field strength of the magnetic field generator corresponding to different response areas at different operating temperatures, obtains the magnetic field strength corresponding to different rotation angles of the liquid crystal monomer, and generates a temperature magnetic field model.

[0077] Specifically, when the working temperature is less than or equal to the preset temperature, the modeling unit adjusts the magnetic field strength of the magnetic field generator of the pixel point corresponding to the working temperature based on the rotation angle and the temperature magnetic field model. Also, when the working temperature is greater than the preset temperature, the modeling unit displays an alarm and determines the cause of the temperature abnormality based on the temperature difference between the abnormal temperature and the preset temperature. The preset temperature is positively correlated with the backlight power.

[0078] It is understandable that the greater the backlight power, the greater the heat generated and the higher the operating temperature. Therefore, the preset temperature is positively correlated with the backlight power. Optionally, the preset temperature is 40°C to 70°C.

[0079] It can be understood that, under the condition that the working temperature is less than or equal to the preset temperature, the magnetic field strength of the magnetic field generator corresponding to the pixel points at different temperatures is collected, and the temperature magnetic field model is obtained through neural network model training.

[0080] It can be understood that when the operating temperature is greater than the preset temperature, an alarm is displayed and the cause of the temperature abnormality is determined based on the temperature difference between the abnormal temperature and the preset temperature. When the temperature difference is less than or equal to the preset temperature difference, it is determined that a heat dissipation problem occurs. When the temperature difference is greater than the preset temperature difference, it is determined that a power overload problem occurs, wherein the preset temperature difference is positively correlated with the backlight power.

[0081] In a specific embodiment, the preset temperature is set to 60°C. If the operating temperature is 55°C, which is lower than the preset temperature, the magnetic field strength of the magnetic field generator corresponding to the pixel point of the operating temperature is adjusted based on the rotation angle and the temperature magnetic field model.

[0082] If the operating temperature is 74°C, which is greater than the preset temperature, an alarm will be displayed and the cause of the temperature abnormality will be determined based on the temperature difference between the abnormal temperature and the preset temperature.

[0083] It is understandable that the greater the backlight power, the higher the operating temperature and the greater the heat generated, so the preset temperature difference is positively correlated with the backlight power. Optionally, the preset temperature difference is 5°C to 10°C.

[0084] Specifically, the present invention constructs a temperature magnetic field model, analyzes the acquired video sequence, and predicts the rotation angle of the liquid crystal monomer in each pixel point, thereby adjusting the magnetic field strength of the magnetic field generator of each pixel point, and converting the physical parameter drift caused by temperature into a quantifiable magnetic field compensation amount, avoiding the power consumption waste or insufficient response caused by traditional global control, and cooperating with the electric drive to rotate the liquid crystal monomer, making the rotation faster, and further improving the accuracy of the fast-response liquid crystal display.

[0085] See also Figure 3 As shown in FIG. , it is a logic diagram for determining whether to adjust the viscosity coefficient according to an embodiment of the present invention. The detection unit compares each response time with a preset time, and determines to calculate the response time difference based on the comparison result, or adjusts the viscosity coefficient of the liquid crystal monomer in the corresponding response area, wherein:

[0086] If the response time is greater than or equal to the preset time, it is determined to adjust the viscosity coefficient of the liquid crystal monomer in the corresponding response area;

[0087] If the response time is less than the preset time, the response time difference is determined and calculated.

[0088] In a specific embodiment, the preset time is set to 10ms. If the response time is 14ms and is greater than the preset time, it is determined that the viscosity coefficient of the liquid crystal monomer in the corresponding response area is adjusted.

[0089] If the response time is 8ms, which is less than the preset time, the response time difference is determined and calculated.

[0090] The preset time is negatively correlated with the LCD driving voltage.

[0091] It is understandable that as the driving voltage of the liquid crystal display increases, the falling time of the liquid crystal monomer decreases, so the preset time is negatively correlated with the driving voltage of the liquid crystal display.

[0092] Preferably, the preset time is 5ms to 20ms.

[0093] Specifically, the detection unit detects the response time of different response areas of the liquid crystal display when playing a video sequence, selects the response time of any adjacent response areas to calculate and generate several response time differences, compares the response time differences with the preset time differences in turn, and determines whether each response area corresponding to the response time difference meets the preset standard based on the comparison results.

[0094] See also Figure 4 As shown in FIG, which is a logic diagram for determining whether to adjust the setting density of microcavities in an embodiment of the present invention, the detection unit calculates and generates the average response time of several response areas on the liquid crystal display, compares the response time of each response area that does not meet the preset standard with the average response time in sequence, and adjusts the setting density of the microcavities based on the comparison results.

[0095] If the response time of each response area that does not meet the preset standard is greater than or equal to the average response time, it is determined that the arrangement density of the microcavities should be reduced;

[0096] If the response time of each response area that does not meet the preset standard is less than the average response time, it is determined that the arrangement density of the microcavities should be increased.

[0097] In a specific embodiment, if the average response time is 9 ms, and if the response time of each response area that does not meet the preset standard is 11 ms and is greater than the average response time, it is determined that the arrangement density of the microcavities is reduced;

[0098] If the response time of each response area that does not meet the preset standard is 7 ms less than the average response time, it is determined that the arrangement density of the microcavities should be increased.

[0099] Specifically, the LCD display characterization value is determined by display brightness, operating temperature, and grayscale response time obtained in simulation tests.

[0100] Specifically, the LCD display performance value = display brightness x 0.3 x 0.1 - 0.4 x grayscale response time + 0.3 x operating temperature. Display brightness (in cd / m²), grayscale response time (in milliseconds), and operating temperature (in °C) are the values ​​used in the above formula.

[0101] In a specific embodiment, assuming the display brightness is 300 cd / m 2 , the grayscale response time is 5 ms, and the operating temperature is 50° C., the liquid crystal display characteristic value is 300×0.3×0.1−0.4×5+0.3×50=30.

[0102] Specifically, the present invention analyzes the response time of the LCD display in playing the video to determine whether each response area meets the standard. At the same time, it can adjust the processing parameters of the LCD display for the next processing, realize regional quality control, and avoid the missed defects caused by traditional global detection. The problem source can be accurately located through partition detection, and historical detection data can be analyzed through machine learning to establish a defect prediction model and trigger process calibration in advance. At the same time, the setting density of the microcavity structure is adjusted according to the response time, thereby improving the synchronization of each response interval of the LCD display and further improving the accuracy of the fast-response LCD.

[0103] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0104] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A fast-response liquid crystal display, characterized in that: include: A partitioning unit is used to divide the liquid crystal display into several response areas from the center to the periphery, and to add liquid crystal monomers with different viscosity coefficients by setting several microcavities in the liquid crystal cell areas corresponding to the different response areas; a testing unit connected to the partitioning unit, for performing a simulation test on the liquid crystal display and obtaining display brightness, operating temperature and grayscale response time of different response areas of the liquid crystal display; an analyzing unit connected to the testing unit, configured to generate liquid crystal display characterization values ​​for different response areas based on the simulation test, determine response levels for the different response areas based on the liquid crystal display characterization values, and determine corresponding response strategies based on the response levels; a modeling unit, connected to the testing unit and the analyzing unit, respectively, for constructing a temperature magnetic field model based on the simulation test, acquiring a video sequence, predicting a rotation angle of the liquid crystal monomer at each pixel position based on the video sequence, and adjusting a magnetic field strength of a magnetic field generator based on the rotation angle and the temperature magnetic field model; A detection unit is connected to the partitioning unit and the modeling unit respectively, and is used to detect the response time of different response areas of the liquid crystal display when playing the video sequence, and determine whether the corresponding response area meets the preset standard based on the difference in response time of adjacent response areas, or adjust the viscosity coefficient of the liquid crystal monomer in the corresponding response area.

2. The fast-response liquid crystal display according to claim 1, characterized in that: The analyzing unit sequentially determines the response levels of different response areas on the liquid crystal display according to the liquid crystal display characteristic value and a plurality of preset display characteristic values.

3. The fast-response liquid crystal display according to claim 2, characterized in that: The corresponding response strategy includes, among others, If the response level is the first response level, determining to use an electric field plus a reverse magnetic field to drive the liquid crystal monomer; If the response level is the second response level, determining to use an electric field to drive the liquid crystal monomer; If the response level is the third response level, determining to use an electric field plus a forward magnetic field to drive the liquid crystal monomer; The reverse magnetic field is a magnetic field that prevents the liquid crystal monomer from rotating from an initial state, and the forward magnetic field is a magnetic field that pushes the liquid crystal monomer to rotate from an initial state.

4. The fast-response liquid crystal display according to claim 3, characterized in that: The modeling unit turns on the magnetic field generator during the previous frame display process under the condition that the rotation angle is greater than or equal to a preset angle, wherein the preset angle is positively correlated with the magnetic field strength of the magnetic field generator set at the pixel point.

5. The fast-response liquid crystal display according to claim 4, characterized in that: The testing unit adjusts the magnetic field strength of the magnetic field generator corresponding to different response areas at different operating temperatures, obtains the magnetic field strength corresponding to the liquid crystal monomer rotating at different angles, and generates the temperature magnetic field model.

6. The fast-response liquid crystal display according to claim 5, characterized in that: When the operating temperature is less than or equal to the preset temperature, the modeling unit adjusts the magnetic field strength of the magnetic field generator of the pixel point corresponding to the operating temperature based on the rotation angle and the temperature magnetic field model. Also, when the operating temperature is greater than the preset temperature, the modeling unit displays an alarm and determines the cause of the temperature abnormality based on the temperature difference between the abnormal temperature and the preset temperature, and the preset temperature is positively correlated with the backlight power.

7. The fast-response liquid crystal display according to claim 6, characterized in that: The detection unit compares each of the response times with a preset time, and determines and calculates a response time difference according to the comparison result, or adjusts the viscosity coefficient of the liquid crystal monomer in the corresponding response area, wherein: If the response time is greater than or equal to the preset time, determining to adjust the viscosity coefficient of the liquid crystal monomer in the corresponding response area; If the response time is less than the preset time, the response time difference is determined and calculated. The preset time is negatively correlated with the LCD driving voltage.

8. The fast-response liquid crystal display according to claim 7, characterized in that: The detection unit detects the response time of different response areas of the liquid crystal display when playing the video sequence, selects the response time of any adjacent response areas to calculate and generate a number of response time differences, compares the response time differences with the preset time differences in turn, and determines whether each response area corresponding to the response time difference meets the preset standard based on the comparison result.

9. The fast-response liquid crystal display according to claim 8, characterized in that: The detection unit calculates and generates an average response time of a plurality of response areas on the liquid crystal display, compares the response time of each response area that does not meet a preset standard with the average response time in sequence, and adjusts the arrangement density of the microcavities according to the comparison result.

10. The fast-response liquid crystal display according to claim 9, characterized in that: The liquid crystal display characteristic value is determined by the display brightness, operating temperature and grayscale response time obtained in the simulation test.

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