Flashing value-seeking method, driving control method, value-seeking device and readable storage medium

Abstract

The present invention discloses a flicker value-seeking method, comprising the steps of: within a preset common voltage range, detecting the screen flicker of each display to be detected, and obtaining corresponding flicker data; obtaining a plurality of straight line data groups based on the flicker data of the display to be detected; normalizing the plurality of straight line data groups to obtain a target straight line; and determining a target common voltage according to the target straight line. The present invention also discloses a drive control method, a value-seeking device, and a readable storage medium. By applying the flicker value-seeking method of the present invention to the value-seeking device, the time for finding the optimal common voltage can be greatly shortened, thereby improving the production efficiency of the display and the work efficiency of the staff.

Description

Technical Field

[0001] The present invention relates to the field of liquid crystal displays, and in particular to a flashing value-seeking method, a driving control method, a value-seeking device and a readable storage medium. Background Art

[0002] As the mainstream display medium in various fields of today's society, liquid crystal displays are becoming more and more popular. With the improvement of people's quality of life, the display quality of liquid crystal displays is also receiving more and more attention. Screen flicker (Flicker), as a problem that is difficult to eradicate for liquid crystal displays, not only reduces the display quality, but also causes physiological discomfort to the human body in severe cases. This is mainly because the liquid crystal needs to always maintain a fixed flip angle in an alternating electric field. Each time the liquid crystal display completes a frame scan, the electric field changes once, which is the root cause of the screen flicker. For an LCD display, the lower the percentage of screen flicker, the better the display effect, the less harm to the human body, and the better the quality of the LCD display. Therefore, how to reduce the screen flicker of LCD is a technical issue that all display manufacturers focus on. There is a high correlation between screen flicker and common voltage (VCOM). By determining the optimal common voltage corresponding to the LCD, the screen flicker of the LCD can be minimized to the greatest extent. In order to find the optimal common voltage, the current solutions mainly include segmentation method, simulation curve, cyclic value search, full measurement method, etc. However, the biggest technical defect of the above solutions is that the value search process is time-consuming. In the current production field that attaches great importance to efficiency, it has seriously affected the production efficiency of LCD. Therefore, there is an urgent need for a technical solution to quickly find the optimal common voltage so as to minimize the screen flicker. Summary of the invention

[0003] The present invention provides a flicker value-seeking method, a driving control method, a value-seeking device and a readable storage medium, which are intended to shorten the value-seeking time of a target common voltage corresponding to the minimum screen flicker of a display.

[0004] To achieve the above object, the present invention provides a flicker value search method, comprising the following steps:

[0005] Within a preset common voltage range, the screen flicker of each display to be detected is detected respectively to obtain corresponding flicker data;

[0006] Obtaining a plurality of straight line data groups based on the flicker data of the display to be detected respectively;

[0007] Normalizing the plurality of straight line data groups to obtain a target straight line;

[0008] A target common voltage is determined according to the target straight line.

[0009] Optionally, the flicker data of the display to be detected includes a sampled common voltage and a sampled screen flicker corresponding to the sampled common voltage; and the step of obtaining a plurality of straight line data groups based on the flicker data of the display to be detected includes:

[0010] Based on the sampled common voltage and the sampled screen flicker, a plurality of initial curves are obtained;

[0011] determining the lowest point in each of said initial curves;

[0012] Dividing each of the initial curves into a left curve and a right curve according to the lowest point;

[0013] The discrete coordinate points in each of the initial curves are filtered to transform the left curve into a first straight line and the right curve into a second straight line, and the set of the first straight line and the second straight line is used as a straight line data set.

[0014] Optionally, the target straight line includes a first target straight line and a second target straight line; the step of normalizing the plurality of straight line data groups to obtain the target straight line includes:

[0015] All the first straight lines in the plurality of straight line data groups are normalized to obtain the first target straight line, and all the second straight lines in the plurality of straight line data groups are normalized to obtain the second target straight line.

[0016] Optionally, the step of normalizing all the first straight lines in the plurality of straight line data groups to obtain the first target straight line, and normalizing all the second straight lines in the plurality of straight line data groups to obtain the second target straight line comprises:

[0017] Obtaining slope data of all the first straight lines in the straight line data group, calculating a first average slope corresponding to the slope data of all the first straight lines, and obtaining the first target straight line according to the first average slope;

[0018] The slope data of all the second straight lines in the straight line data group are obtained, a second average slope corresponding to the slope data of all the second straight lines is calculated, and the second target straight line is obtained according to the second target slope.

[0019] Optionally, the step of obtaining the first target straight line according to the first average slope includes:

[0020] Inputting the first average slope into a preset standard straight line formula to obtain a first straight line formula;

[0021] Taking the minimum common voltage in the preset common voltage range as the abscissa and the first screen flicker corresponding to the minimum common voltage as the ordinate and inputting it into the first straight line formula, calculating and obtaining the first intercept in the first straight line formula;

[0022] The first target straight line is obtained according to the first average slope and the first intercept.

[0023] Optionally, the step of obtaining the second target straight line according to the second target slope includes:

[0024] Inputting the second average slope into a preset standard straight line formula to obtain a second straight line formula;

[0025] Taking the maximum common voltage in the preset common voltage range as the abscissa and the second screen flicker corresponding to the maximum common voltage as the ordinate and inputting it into the second straight line formula, calculating and obtaining the second intercept in the second straight line formula;

[0026] The second target straight line is obtained according to the second average slope and the second intercept.

[0027] Optionally, the step of determining the target common voltage according to the target straight line includes:

[0028] Determining the coordinates of the intersection of the first target straight line and the second target straight line;

[0029] The common voltage corresponding to the intersection coordinates is used as the target common voltage.

[0030] In addition, to achieve the above-mentioned purpose, the present invention also provides a driving control method, characterized in that the driving control method is applied to an IC chip, and the IC chip sends a driving signal and display data to a display panel with the target common voltage as the output voltage to drive the display panel.

[0031] In addition, to achieve the above-mentioned purpose, the present invention also provides a value-seeking device, which includes a memory, a processor, and a screen flickering value-seeking program stored in the memory and run on the processor, wherein: when the screen flickering value-seeking program is executed by the processor, the steps of the flickering value-seeking method as described above are implemented.

[0032] In addition, to achieve the above-mentioned purpose, the present invention also provides a readable storage medium, on which a screen flicker value search program is stored, and when the screen flicker value search program is executed by a processor, the steps of the flicker value search method described above are implemented.

[0033] The flicker value search method of the present invention first detects the screen flicker of each display to be detected within a preset common voltage range to obtain corresponding flicker data. The preset common voltage range avoids the full-range detection of the liquid crystal display within the rated common voltage range of the IC chip at the beginning, thereby improving the efficiency of the liquid crystal display detection. The method further obtains a plurality of straight line data groups based on the flicker data of the display to be detected and normalizes the plurality of straight line data groups to obtain a target straight line, thereby intuitively converting a large amount of actual screen flicker data collected by the detection within a smaller common voltage range into a straight line graph, thereby facilitating the analysis of the relationship between the common voltage and the screen flicker by the technician. Finally, the method determines the target common voltage according to the target straight line, thereby directly determining the target common voltage corresponding to the display to be detected when it is in the minimum screen flicker (optimal screen flicker) through the straight line. A large number of tests have proved that compared with the conventional value search scheme that takes 12 to 15 seconds to complete, the method of the present invention can complete the value search within 5 seconds, thereby greatly reducing the time for finding the target common voltage corresponding to the optimal screen flicker and improving the production efficiency of the liquid crystal display. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the terminal structure of the hardware operating environment of the value-seeking device involved in the embodiment of the present invention;

[0035] Figure 2 It is a flow chart of the first embodiment of the flashing value search method of the present invention;

[0036] Figure 3 A schematic diagram of a common voltage-screen flicker sampling method according to a first embodiment of the present invention;

[0037] Figure 4 It is a frame structure diagram of the screen flicker value finding device involved in the flicker value finding method of the present invention. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0039] like Figure 1 As shown, Figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment of the value-seeking device involved in the embodiment of the present invention.

[0040] like Figure 1As shown, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display (Display), an input unit such as a control panel, and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a 5G interface). The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may optionally be a storage device independent of the aforementioned processor 1001. The memory 1005 as a computer storage medium may include a screen flashing value search program.

[0041] Optionally, the terminal may further include a microphone, a speaker, an RF (Radio Frequency) circuit, a sensor, an audio circuit, a wireless module, etc. Among them, sensors such as infrared sensors, image sensors, acceleration sensors and other sensors are not described in detail here.

[0042] Those skilled in the art will understand that Figure 1 The terminal structure shown in the figure does not constitute a limitation on the terminal, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0043] like Figure 2 As shown, Figure 2 : is a flow chart of a first embodiment of a flashing value search method of the present invention. In this embodiment, the method includes:

[0044] Step S10, within a preset common voltage range, respectively detecting the screen flicker of each to-be-detected display to obtain corresponding flicker data;

[0045] As the demand for image quality increases, customers want display products with wide viewing angles, high contrast, clearer screen quality, and less screen flicker. Since LCD (Liquid Crystal Display) products display dynamic flips, the smaller the flicker of static images, the better the viewing experience of users when the product displays images, so flicker is currently an indicator that everyone is paying attention to.

[0046] Source of FLICKER:

[0047] LCD displays are achieved by flipping the liquid crystal to see whether light is transmitted. The transmittance of light is related to the flip (rotation) angle of the liquid crystal. LCD uses the flip angle of the liquid crystal to achieve the grayscale effect of a picture. When a static picture is displayed, the liquid crystal will also maintain a flip (rotation) angle unchanged. At the same time, in order to prevent the liquid crystal from being polarized, the electric field that makes the liquid crystal flip (rotate) is not a DC electric field, but an AC electric field with the same positive and negative half-cycle time and the same amplitude, so that the liquid crystal maintains a fixed flip (rotation) angle in an AC electric field. Every time the LCD completes a frame scan, the electric field will change once. In actual situations, this makes the positive and negative electric fields of the liquid crystal flip (rotation) angle usually cannot be guaranteed to be exactly the same. When the flip (rotation) angle of the liquid crystal in these two electric fields is different, FLICKER is generated. Taking DC VCOM as an example, when the difference between the following grayscale positive pressure---VCOM and the difference between the negative pressure---VCOM are not equal, Flicker is generated.

[0048] In order to ensure that each product has the minimum FLICKER, each module manufacturer now performs OTP (One Time Programmable) FLICKER burning for each product. By changing the setting of the VCOM voltage register, the most suitable VCOM voltage for each product is found and the optimal setting is burned into the driver IC chip. Each time the module displays, it will call the previously burned value to obtain the best FLICKER for the product.

[0049] Each product needs to be programmed. The time for programming each chip is currently 18 to 25 seconds for each module factory, of which 12 to 15 seconds is in the process of finding the best value. If the range of the value search is set too small, the best value may not be found; if the range of the value search is too large, the time of finding the value will be longer; the adaptive value search range is prone to system vulnerabilities, resulting in abnormal value search; no matter the segmentation method, simulation curve, or cyclic value search, etc., used by each manufacturer, time means cost, so we really want to reduce the time of the entire programming.

[0050] This embodiment is mainly applicable to liquid crystal displays made of LTPS (Low Temperature Poly-Silicon). If liquid crystal displays made of other materials can also shorten the optimal common voltage search time by applying the present invention, they should also fall under the protection of the present invention.

[0051] In this embodiment, the liquid crystal display mainly includes two parts: a panel and an IC chip. Since the common voltage of the IC chip is in a relatively large rated voltage range, determining the preset common voltage range is to take a smaller voltage range in the rated voltage range of the IC chip. The specific determination of the preset common voltage range can be configured according to actual needs. In this embodiment, the preset common voltage range can be determined according to the middle value of the rated voltage range. Specifically, the middle value is used as a reference value, the difference between the middle value and the preset value is used as the minimum value of the preset common voltage range, and the sum of the middle value and the preset value is used as the maximum value of the preset common voltage. The preset common voltage range is determined according to the above minimum and maximum values. For example, if the preset value is 10, the rated voltage range of the IC chip is (0,40), then the middle value is 20, and (10,30) can be taken as the preset common voltage range.

[0052] The display to be tested refers to a preset number of liquid crystal display samples randomly taken from the same production batch or the same product batch, and the preset number can be determined according to actual needs, for example, 10 liquid crystal displays are taken for testing. The testing method can be the comparison method and the JEITA method.

[0053] After sampling and testing each display to be tested, a large amount of flicker data including screen flicker (sampled screen flicker) and common voltage (sampled common voltage) is obtained.

[0054] Step S20, obtaining a plurality of straight line data groups based on the flicker data of the display to be detected;

[0055] Each straight line data group corresponds to each display to be detected, and includes a first straight line and a second straight line, wherein the first straight line and the second straight line are transformed from initial curve fitting directly generated according to flicker data of each display to be detected.

[0056] Specifically, step S20 includes:

[0057] Step a, obtaining a plurality of initial curves based on the sampled common voltage and the sampled screen flicker;

[0058] Step b, determining the lowest point in each of the initial curves;

[0059] Step c, dividing each of the initial curves into a left curve and a right curve according to the lowest point;

[0060] Step d: filtering the discrete coordinate points in each of the initial curves to transform the left curve into a first straight line and the right curve into a second straight line, and taking the set of the first straight line and the second straight line as a straight line data set.

[0061] In order to intuitively understand the above steps and this embodiment, you can refer to Figure 3 , Figure 3 A schematic diagram of a common voltage-screen flicker sampling method according to a first embodiment of the flicker value search method of the present invention.

[0062] like Figure 3 As shown, Figure 3 It is a coordinate system, where the horizontal axis represents VCOM (common voltage), the vertical axis represents FLICKER (screen flicker), and the values ​​marked on the horizontal axis are 255, 260, 265, 270, 275, 280, and 285 from left to right. The values ​​marked on the vertical axis are 0, 20, and 40 upwards from the origin, and 0 and -20 downwards.

[0063] There are three initial curves (presented as sampling coordinate points in the figure, and all in the positive coordinate system) and six straight lines in the coordinate system, which are the test results of the three LCD monitors. Each initial curve is V-shaped and is obtained by establishing a coordinate system based on the flicker data detected by each monitor to be tested. Figure 3 Each V-shaped curve in the equation is divided into a left curve and a right curve at the lowest point, and the left curve and the right curve are respectively filtered out of discrete points in the curve to fit the first straight line (diagonally downward) and the second straight line (diagonally upward). The three V-shaped curves become three first straight lines and three second straight lines. Each first straight line and its corresponding second straight line form a set of straight line data.

[0064] After a certain number of LCDs are tested by the above comparison method or JEITA method, each sampling coordinate point is initially formed according to the corresponding relationship between the detected common voltage and the screen flicker value. If the coordinate points of each sampling point are directly connected into a line, it is an initial V-shaped curve (not marked in the figure). However, for LCDs made of LTPS material, the entire initial V-shaped curve is close to a V-shaped curve formed by the intersection of two straight lines, that is, a V-shaped curve formed by the intersection of the first straight line and the second straight line. Therefore, the discrete points in the initial V-shaped curve that are obviously not in the same straight line or obviously deviate from the same straight line compared to other sampling coordinate points can be filtered, and then the other sampling coordinate points in the initial V-shaped curve are fitted to obtain two fitting straight lines.

[0065] Step S30, normalizing the plurality of straight line data groups to obtain a target straight line;

[0066] Step S40, determining the target common voltage according to the target straight line.

[0067] Specifically, step S30 includes: normalizing all the first straight lines in the plurality of straight line data groups to obtain the first target straight line, and normalizing all the second straight lines in the plurality of straight line data groups to obtain the second target straight line.

[0068] like Figure 3 As shown, each liquid crystal display has its own intersection point formed by the intersection of the first straight line and the second straight line, so the three liquid crystal displays have a total of three intersection points, so there are three intersection points in the figure, representing the minimum screen flicker corresponding to each of the three displays to be tested, which is often referred to as the optimal screen flicker in this field. However, in order to be able to be applied to displays of the same batch as the displays to be tested, so that all displays can always show the minimum screen flicker when driven by the IC chip, it is necessary to normalize all of the above-mentioned several straight line data groups to obtain a target straight line composed of a first target straight line and a second target straight line, that is, no matter how many first straight lines and second straight lines there are in the several straight line data groups, they are finally normalized into a first target straight line and a second target straight line, and the target common voltage applicable to all displays is determined according to the coordinates of the intersection between the first target straight line and the second target straight line, that is, when the IC chip uses the target common voltage as the output voltage, each display can achieve its ideal screen flicker.

[0069] The flicker value search method of the present invention first detects the screen flicker of each display to be detected within a preset common voltage range to obtain corresponding flicker data. The preset common voltage range avoids the full-range detection of the liquid crystal display within the rated common voltage range of the IC chip at the beginning, thereby improving the efficiency of the liquid crystal display detection. The method further obtains a plurality of straight line data groups based on the flicker data of the display to be detected and normalizes the plurality of straight line data groups to obtain a target straight line, thereby intuitively converting a large amount of actual screen flicker data collected by the detection within a smaller common voltage range into a straight line graph, thereby facilitating the analysis of the relationship between the common voltage and the screen flicker by the technician. Finally, the method determines the target common voltage according to the target straight line, thereby directly determining the target common voltage corresponding to the display to be detected when it is in the minimum screen flicker (optimal screen flicker) through the straight line. A large number of tests have proved that compared with the conventional value search scheme that takes 12 to 15 seconds to complete, the method of the present invention can complete the value search within 5 seconds, thereby greatly reducing the time for finding the target common voltage corresponding to the optimal screen flicker and improving the production efficiency of the liquid crystal display.

[0070] Furthermore, based on the first embodiment of the flicker value finding method of the present invention, a second embodiment of the flicker value finding method of the present invention is proposed. In this embodiment, the step of normalizing all the first straight lines in the plurality of straight line data groups to obtain the first target straight line, and normalizing all the second straight lines in the plurality of straight line data groups to obtain the second target straight line, comprises:

[0071] Obtaining slope data of all the first straight lines in the straight line data group, calculating a first average slope corresponding to the slope data of all the first straight lines, and obtaining the first target straight line according to the first average slope;

[0072] The slope data of all the second straight lines in the straight line data group are obtained, a second average slope corresponding to the slope data of all the second straight lines is calculated, and the second target straight line is obtained according to the second target slope.

[0073] Reference Figure 3 It is easy to understand that Figure 3 Each first straight line and each second straight line covers multiple sampling coordinate points. Randomly select two sampling coordinate points with specific common voltage and screen flicker value of the first straight line, and obtain the slope data of the first straight line through the coordinates of the two points. Similarly, the slope data of the second straight line can also be obtained. The average value of the slope data of all first straight lines is taken to obtain the first average slope K1, and K2 is obtained in the same way, so as to obtain the straight line formula corresponding to the first target straight line and the straight line formula corresponding to the second target straight line respectively. In the above straight line formulas, the slope and intercept are both known.

[0074] Specifically, in one embodiment, the step of obtaining the first target straight line according to the first average slope includes:

[0075] Inputting the first average slope into a preset standard straight line formula to obtain a first straight line formula;

[0076] Taking the minimum common voltage in the preset common voltage range as the abscissa and the first screen flicker corresponding to the minimum common voltage as the ordinate and inputting it into the first straight line formula, calculating and obtaining the first intercept in the first straight line formula;

[0077] The first target straight line is obtained according to the first average slope and the first intercept.

[0078] In this embodiment, the first average slope K1 is input into the standard straight line formula Y=KX+B, and Y=K1X+B is obtained, where K1 is the specific value obtained, and the minimum common voltage in the preset common voltage range is used as the horizontal coordinate, and the first screen flicker corresponding to the minimum common voltage is input into Y=K1X+B to obtain the first intercept B1. Thus, the first target straight line Y1=K1X+B1 is obtained. For example, if the preset common voltage range is (20,90), then 20 is the horizontal coordinate, and the screen flicker collected when the common voltage is 20 is the first screen flicker.

[0079] In another embodiment, the step of obtaining the second target straight line according to the second target slope includes:

[0080] Inputting the second average slope into a preset standard straight line formula to obtain a second straight line formula;

[0081] Taking the maximum common voltage in the preset common voltage range as the abscissa and the second screen flicker corresponding to the maximum common voltage as the ordinate and inputting it into the second straight line formula, calculating and obtaining the second intercept in the second straight line formula;

[0082] The second target straight line is obtained according to the second average slope and the second intercept.

[0083] In this embodiment, the second average slope K2 is input into the standard straight line formula Y=KX+B, and Y=K2X+B is obtained, where K2 is the specific value obtained, and the maximum common voltage in the preset common voltage range is used as the horizontal coordinate, and the second screen flicker corresponding to the maximum common voltage is input into Y=K2X+B to obtain the second intercept B2. Thus, the second target straight line Y2=K2X+B2 is obtained. For example, if the preset common voltage range is (20,90), then 90 is the horizontal coordinate, and the screen flicker collected when the common voltage is 90 is the second screen flicker.

[0084] In another embodiment, the step of determining the target common voltage according to the target straight line includes:

[0085] Determining the coordinates of the intersection of the first target straight line and the second target straight line;

[0086] The common voltage corresponding to the intersection coordinates is used as the target common voltage.

[0087] After obtaining the first target straight line Y1=K1X+B1 and the second target straight line Y2=K2X+B2, the coordinates of the intersection between the two straight lines can be calculated according to a simple mathematical equation. The horizontal coordinate of the intersection coordinate is the target common voltage. After determining the target common voltage, all displays of the same production batch or the same specification as the above-mentioned display to be tested can apply the target common voltage. Specifically, when the IC chip uses the target common voltage as the output voltage to drive the scanning display, the display can maintain an excellent screen flickering effect.

[0088] In addition, to achieve the above-mentioned purpose, the present invention also provides a display, which includes a liquid crystal display panel, an IC chip and a light sensor, wherein the IC chip integrates a common voltage regulation circuit and a screen flicker statistics circuit, wherein the common voltage regulation circuit is used to make the common voltage output by the IC chip a preset fixed value, and the screen flicker statistics circuit is used to count the detected screen flicker data and output the screen flicker data to a storage device electrically connected to the display.

[0089] In addition, to achieve the above objectives, the present invention also provides a driving control method, which is applied to an IC chip, and the IC chip uses the target common voltage described in the above embodiment as the output voltage to send a driving signal and display data to a display panel to drive the display panel.

[0090] In addition, if Figure 4 As shown, Figure 4 The present invention is a frame structure diagram of a screen flicker value-seeking device involved in the flicker value-seeking method of the present invention; the present invention also proposes a screen flicker value-seeking device, the screen flicker value-seeking device comprising:

[0091] The screen flicker sampling module A10 is used to detect the screen flicker of each display to be detected within a preset common voltage range and obtain corresponding flicker data;

[0092] The common voltage value finding module A20 is used to obtain a plurality of straight line data groups based on the flicker data of the display to be detected; normalize the plurality of straight line data groups to obtain a target straight line; and determine a target common voltage according to the target straight line.

[0093] Optionally, the common voltage value finding module A20 is further used for:

[0094] Based on the sampled common voltage and the sampled screen flicker, a plurality of initial curves are obtained;

[0095] determining the lowest point in each of said initial curves;

[0096] Dividing each of the initial curves into a left curve and a right curve according to the lowest point;

[0097] The discrete coordinate points in each of the initial curves are filtered to transform the left curve into a first straight line and the right curve into a second straight line, and the set of the first straight line and the second straight line is used as a straight line data set.

[0098] Optionally, the common voltage value finding module A20 is further used for:

[0099] All the first straight lines in the plurality of straight line data groups are normalized to obtain the first target straight line, and all the second straight lines in the plurality of straight line data groups are normalized to obtain the second target straight line.

[0100] Optionally, the common voltage value finding module A20 is further used for:

[0101] Obtaining slope data of all the first straight lines in the straight line data group, calculating a first average slope corresponding to the slope data of all the first straight lines, and obtaining the first target straight line according to the first average slope;

[0102] The slope data of all the second straight lines in the straight line data group are obtained, a second average slope corresponding to the slope data of all the second straight lines is calculated, and the second target straight line is obtained according to the second target slope.

[0103] Optionally, the common voltage value finding module A20 is further used for:

[0104] Inputting the first average slope into a preset standard straight line formula to obtain a first straight line formula;

[0105] Taking the minimum common voltage in the preset common voltage range as the abscissa and the first screen flicker corresponding to the minimum common voltage as the ordinate and inputting it into the first straight line formula, calculating and obtaining the first intercept in the first straight line formula;

[0106] The first target straight line is obtained according to the first average slope and the first intercept.

[0107] Optionally, the common voltage value finding module A20 is further used for:

[0108] Inputting the second average slope into a preset standard straight line formula to obtain a second straight line formula;

[0109] Taking the maximum common voltage in the preset common voltage range as the abscissa and the second screen flicker corresponding to the maximum common voltage as the ordinate and inputting it into the second straight line formula, calculating and obtaining the second intercept in the second straight line formula;

[0110] The second target straight line is obtained according to the second average slope and the second intercept.

[0111] Optionally, the common voltage value finding module A20 is further used for:

[0112] Determining the coordinates of the intersection of the first target straight line and the second target straight line;

[0113] The common voltage corresponding to the intersection coordinates is used as the target common voltage.

[0114] The specific implementation of the screen flicker value-seeking device of the present invention is basically the same as the above-mentioned flicker value-seeking method embodiments, and will not be described in detail here.

[0115] In addition, the present invention also proposes a value-seeking device, which includes a memory, a processor, and a screen flickering value-seeking program stored in the memory and executable on the processor, and when the processor executes the screen flickering value-seeking program, the steps of the flickering value-seeking method described in the above embodiment are implemented.

[0116] The specific implementation of the value-seeking device of the present invention is basically the same as the embodiments of the above-mentioned flashing value-seeking method, and will not be described in detail here.

[0117] In addition, the present invention also proposes a readable storage medium, characterized in that the readable storage medium can be a computer-readable storage medium, including a screen flicker value search program, and when the screen flicker value search program is executed by a processor, it implements the steps of the flicker value search method described in the above embodiment.

[0118] The specific implementation of the readable storage medium of the present invention is basically the same as the above-mentioned embodiments of the flashing value-seeking method, and will not be described in detail here.

[0119] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0120] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for a terminal device (which can be a TV, mobile phone, computer, server, car machine, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0121] In the present invention, the terms "first", "second", "third", "fourth" and "fifth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0122] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0123] Although the embodiments of the present invention have been shown and described above, the scope of protection of the present invention is not limited thereto. It is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. A person of ordinary skill in the art can change, modify and replace the above embodiments within the scope of the present invention, and these changes, modifications and replacements should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A flashing value search method, characterized in that: The following steps are involved: Within a preset common voltage range, the screen flicker of each display to be detected is detected respectively to obtain corresponding flicker data; Obtaining a plurality of straight line data groups based on the flicker data of the display to be detected respectively; Normalizing the plurality of straight line data groups to obtain a target corresponding relationship; Determining a target common voltage according to the target corresponding relationship; The flicker data of the display to be detected includes a sampled common voltage and a sampled screen flicker corresponding to the sampled common voltage; The step of obtaining a plurality of straight line data groups based on the flicker data of the display to be detected comprises: Based on the sampled common voltage and the sampled screen flicker, a plurality of initial corresponding relationships are obtained, wherein the initial corresponding relationships are used to characterize the corresponding relationship between the sampled common voltage and the sampled screen flicker value; Determine the lowest point in each of the initial corresponding relationships, where the lowest point is used to represent the point with the minimum value among the values ​​of flicker of the sampled picture; Dividing each of the initial corresponding relationships into a first corresponding relationship and a second corresponding relationship according to the lowest point; The discrete coordinate points in each of the initial correspondences are filtered to transform the first correspondence into a third correspondence, and the second correspondence into a fourth correspondence, and the set of the third correspondence and the fourth correspondence is used as a straight line data set.

2. The flashing value-seeking method according to claim 1, characterized in that: The target correspondence relationship includes a first target correspondence relationship and a second target correspondence relationship; The step of normalizing the plurality of straight line data groups to obtain a target corresponding relationship comprises: All the third correspondences in the plurality of straight line data groups are normalized to obtain the first target correspondences, and all the fourth correspondences in the plurality of straight line data groups are normalized to obtain the second target correspondences.

3. The flashing value-seeking method according to claim 2, characterized in that: The step of normalizing all the third correspondences in the plurality of straight line data groups to obtain the first target correspondence, and normalizing all the fourth correspondences in the plurality of straight line data groups to obtain the second target correspondence, comprises: Obtaining slope data of all the third corresponding relationships in the straight line data group, calculating a first average slope corresponding to the slope data of all the third corresponding relationships, and obtaining the first target corresponding relationship according to the first average slope; The slope data of all the fourth corresponding relationships in the straight line data group are obtained, a second average slope corresponding to the slope data of all the fourth corresponding relationships is calculated, and the second target corresponding relationship is obtained according to the second average slope.

4. The flashing value-seeking method according to claim 3, characterized in that: The step of obtaining the first target corresponding relationship according to the first average slope comprises: Inputting the first average slope into a preset standard straight line formula to obtain a third corresponding relationship formula; Taking the minimum common voltage in the preset common voltage range as the abscissa, and inputting the first screen flicker corresponding to the minimum common voltage as the ordinate into the third corresponding relationship formula, and calculating and obtaining the first intercept in the third corresponding relationship formula; The first target corresponding relationship is obtained according to the first average slope and the first intercept.

5. The flashing value-finding method as claimed in claim 4, characterized in that: The step of obtaining the second target corresponding relationship according to the second average slope includes: Inputting the second average slope into a preset standard straight line formula to obtain a fourth corresponding relationship formula; Taking the maximum common voltage in the preset common voltage range as the abscissa and the second screen flicker corresponding to the maximum common voltage as the ordinate and inputting it into the fourth corresponding relationship formula, calculating and obtaining the second intercept in the fourth corresponding relationship formula; The second target corresponding relationship is obtained according to the second average slope and the second intercept.

6. The flashing value-seeking method according to claim 5, characterized in that: The step of determining the target common voltage according to the target corresponding relationship includes: Determining the coordinates of the intersection of the first target correspondence relationship and the second target correspondence relationship; The common voltage corresponding to the intersection coordinates is used as the target common voltage.

7. A drive control method, characterized in that: The driving control method is applied to an IC chip, and the IC chip uses the target common voltage according to any one of claims 1 to 6 as an output voltage to send a driving signal and display data to a display panel to drive the display panel.

8. A value-seeking device, characterized in that: The value-seeking device includes a memory, a processor, and a screen flicker value-seeking program stored in the memory and executable on the processor, wherein: when the screen flicker value-seeking program is executed by the processor, the steps of the flicker value-seeking method as described in any one of claims 1 to 6 are implemented.

9. A readable storage medium, characterized in that: The readable storage medium stores a screen flicker value-seeking program, and when the screen flicker value-seeking program is executed by a processor, the steps of the flicker value-seeking method according to any one of claims 1 to 6 are implemented.

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