Common voltage compensation method and device, display device and readable storage medium

Abstract

The application discloses a common voltage compensation method and device, display equipment and readable storage medium, belong to circuit technical field. The common voltage compensation method comprises the following steps: obtaining a preset threshold value and a common voltage feedback value, generating a common voltage feedback waveform according to the preset threshold value and the common voltage feedback value; determining a to-be-analyzed waveform according to the common voltage feedback waveform; performing data analysis on the to-be-analyzed waveform to obtain a data analysis result; determining a common voltage compensation multiple according to the data analysis result; and outputting an amplified common voltage compensation according to the common voltage compensation multiple. The application can automatically determine a suitable VCOM compensation multiple for a panel, improve the VCOM compensation multiple accuracy, and adopt different compensation multiples for different panels, thereby avoiding errors and low efficiency caused by manual debugging.

Description

Technical Field

[0001] This invention relates to the field of circuit technology, and in particular to common voltage compensation methods, devices, display equipment, and readable storage media. Background Technology

[0002] In traditional circuit design structures, the VCOM voltage (Common Voltage) level can be distorted due to variations in the displayed image, resulting in VCOM voltage couple distortion. Figure 1 As shown, this is generally referred to as crosstalk.

[0003] To mitigate the effects of crosstalk, existing techniques utilize operational amplifiers to perform inverse compensation of VCOM, such as... Figure 2 As shown. The compensation circuit is as follows. Figure 3 As shown, the positive input of the compensation OP (Operational Amplifier) ​​is the power supply voltage VCOM of the display panel, while the negative input is fed back to VCOM through resistor R1 and a filter capacitor. The output is the inverse compensation VCOM voltage, and the amplification factor is adjusted by the ratio of R2 to R1. However, although the compensation circuit improves crosstalk, differences exist between wafers due to in-plane manufacturing process issues and variations in material purity. Typically, the value of R2 is manually changed to adjust the operational amplifier's amplification factor until a satisfactory VCOM compensation effect is achieved. This method is very cumbersome, and since different panels require different VCOM voltages and compensation factors, it's impractical to use different feedback resistors R2 for different panels during mass production.

[0004] In summary, the shortcomings of the existing technology are: manual adjustment of the feedback resistor is time-consuming and labor-intensive, the accuracy of the compensation multiple is low, and it cannot achieve different compensation multiples for different panels, resulting in a large deviation in the compensation effect and crosstalk phenomenon still occurring. Summary of the Invention

[0005] The main objective of this invention is to provide a common voltage compensation method, apparatus, display device, and readable storage medium, aiming to solve the problems of how to determine a suitable VCOM compensation multiple for a panel, improve the accuracy of the VCOM compensation multiple, and avoid errors and low efficiency caused by manual adjustment.

[0006] To achieve the above objectives, the present invention provides a common voltage compensation method, which is applied to the common voltage compensation circuit described above, and the common voltage compensation method includes the following steps:

[0007] Obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value;

[0008] The waveform to be analyzed is determined based on the common voltage feedback waveform;

[0009] Data analysis is performed on the waveform to be analyzed to obtain the data analysis results;

[0010] The common voltage compensation factor is determined based on the data analysis results.

[0011] The amplified common voltage compensation is output according to the common voltage compensation factor.

[0012] Optionally, the preset threshold includes a positive preset threshold and a negative preset threshold, and the common voltage feedback value includes a positive common voltage feedback value and a negative common voltage feedback value;

[0013] The step of generating a common voltage feedback waveform based on the preset threshold and the common voltage feedback value includes:

[0014] The positive preset threshold and the positive common voltage feedback value are compared to generate a high-level common voltage feedback waveform;

[0015] The negative preset threshold and the negative common voltage feedback value are compared to generate a low-level common voltage feedback waveform.

[0016] Optionally, the step of determining the waveform to be analyzed based on the common voltage feedback waveform includes:

[0017] The high-level common voltage feedback waveform and the low-level common voltage feedback waveform are integrated to obtain the waveform to be analyzed.

[0018] Optionally, the step of performing data analysis on the waveform to be analyzed and obtaining data analysis results includes:

[0019] Determine whether the duty cycle time or number of clock cycles in the waveform to be analyzed meets the preset standard, obtain the determination result, and use the determination result as the data analysis result.

[0020] Optionally, the step of determining the common voltage compensation factor based on the data analysis results includes:

[0021] Based on the data analysis results, determine whether to adjust the count value in the preset counter;

[0022] The common voltage compensation factor is determined based on the count value.

[0023] Optionally, the step of determining whether to adjust the count value in the preset counter based on the data analysis results includes:

[0024] If the judgment result is that the duty cycle time or the number of clock cycles in the waveform to be analyzed meets the preset standard, then the count value in the preset counter is incremented by one;

[0025] If the judgment result is that the duty cycle time and the number of clock cycles in the waveform to be analyzed do not meet the preset standard, then the count value in the preset counter will not be adjusted.

[0026] Furthermore, to achieve the above objectives, the present invention also provides a common voltage compensation device, the common voltage compensation device comprising:

[0027] The comparison module is used to obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value;

[0028] A logic module is configured to determine the waveform to be analyzed based on the common voltage feedback waveform.

[0029] The analysis module is used to perform data analysis on the waveform to be analyzed and obtain data analysis results;

[0030] The selection module is used to determine the common voltage compensation multiple based on the data analysis results.

[0031] An amplification module is used to output an amplified common voltage compensation based on the common voltage compensation factor.

[0032] In addition, to achieve the above objectives, the present invention also provides a display device, the display device comprising: a common voltage compensation circuit, a memory, a processor, and a common voltage compensation program stored in the memory and executable on the processor, wherein the common voltage compensation program, when executed by the processor, implements the steps of the common voltage compensation method as described above.

[0033] In addition, to achieve the above objectives, the present invention also provides a computer-readable storage medium storing a common voltage compensation program, which, when executed by a processor, implements the steps of the common voltage compensation method as described above.

[0034] This invention proposes a common voltage compensation method, device, display equipment, and readable storage medium. It overcomes the technical shortcomings of existing technologies, such as the time-consuming and labor-intensive manual adjustment of the feedback resistor, low accuracy of the compensation factor, inability to apply different compensation factors to different panels, resulting in significant deviations in the compensation effect and the continued occurrence of crosstalk. Because the comparator is designed as a high-speed switch, it has a faster slew rate and shorter delay than operational amplifiers. The common voltage compensation method provided by this invention compares the internal feedback VCOM with the comparator, further analyzes the comparison data, and automatically adjusts the amplification factor using the comparison parameters. This achieves automatic determination of the appropriate VCOM compensation factor for the panel, thereby improving the accuracy of the VCOM compensation factor. The common voltage compensation circuit provided by this invention has a simple structure, provides a faster slew rate and shorter delay, and allows for different compensation factors to be applied to different display panels and display panels with inter-panel differences. This avoids the errors and low efficiency caused by manual adjustment and can more effectively improve crosstalk. Attached Figure Description

[0035] Figure 1 This is a waveform diagram illustrating the double distortion of the VCOM voltage in a traditional circuit design structure.

[0036] Figure 2 This is a schematic diagram of a simulated waveform used in the prior art to improve crosstalk by using an operational amplifier to perform reverse compensation on VCOM;

[0037] Figure 3 This is a schematic diagram of a compensation circuit commonly used in existing technologies;

[0038] Figure 4 This is a flowchart illustrating an embodiment of the common voltage compensation method of the present invention;

[0039] Figure 5 This is a schematic diagram illustrating an application scenario of an embodiment of the common voltage compensation circuit of the present invention;

[0040] Figure 6 This is a waveform diagram of VCOM feedback integration according to an embodiment of the common voltage compensation circuit of the present invention;

[0041] Figure 7 This is a waveform diagram of an OR gate integration according to an embodiment of the common voltage compensation circuit of the present invention;

[0042] Figure 8 This is a functional module diagram of an embodiment of the common voltage compensation device of the present invention;

[0043] Figure 9 This is a schematic diagram of the structure of a display device involved in an embodiment of the present invention.

[0044] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0046] This invention provides a common voltage compensation method, referring to... Figure 4 , Figure 4 This is a flowchart illustrating an embodiment of a common voltage compensation method according to the present invention.

[0047] In this embodiment, the common voltage compensation method includes:

[0048] Step S10: Obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value;

[0049] It should be noted that the execution subject in this embodiment is the display device. This can be explained in conjunction with the common voltage compensation circuit within the display device, as detailed below. Figure 5 , Figure 5 This is a schematic diagram illustrating the application scenario of this embodiment. The display device includes a display panel. The preset threshold is an error comparison standard set based on the voltage level of the common voltage input to the display panel. It is used to determine whether the common voltage feedback value collected from the output terminal of the display panel is distorted. If the deviation between the common voltage feedback value and the common voltage exceeds the preset threshold within a certain period of time, then distortion is considered to have occurred during that period. For example, when the common voltage level is 5V, the preset threshold can be set to 50mV. That is, when the common voltage feedback value is greater than 5.05V or less than 4.95V within a certain period of time, it is considered a distortion phenomenon. The common voltage feedback waveform is a continuous waveform diagram measured within one frame or several frames, with the common voltage level as the center line and the common voltage feedback value as the measured value.

[0050] Based on this, as a feasible embodiment, the preset threshold includes a positive preset threshold and a negative preset threshold, and the common voltage feedback value includes a positive common voltage feedback value and a negative common voltage feedback value. The step S10 above, which involves generating a common voltage feedback waveform based on the preset threshold and the common voltage feedback value, includes:

[0051] Step S11: Compare the positive preset threshold and the positive common voltage feedback value to generate a high-level common voltage feedback waveform;

[0052] Step S12: Compare the negative preset threshold and the negative common voltage feedback value to generate a low-level common voltage feedback waveform.

[0053] It should be noted that this embodiment can be implemented based on a common voltage compensation circuit in a display device. This common voltage compensation circuit includes a comparison circuit, which includes two comparators. The non-inverting input terminals of the two comparators are respectively input to a positive preset threshold and a negative preset threshold, and the negative input terminals are respectively input to a positive common voltage feedback value and a negative common voltage feedback value. After the comparators perform positive and negative comparisons, two common voltage feedback CLK (clock pulse) waveforms are generated. The high-level common voltage feedback waveform is generated by comparing the positive preset threshold (which is higher than the common voltage level) with the positive common voltage feedback value, and the low-level common voltage feedback waveform is generated by comparing the negative preset threshold (which is lower than the common voltage level) with the negative common voltage feedback value. For example, when the common voltage level is 5V, the positive preset threshold can be set to +50mV and the negative preset threshold can be set to -50mV. When the positive common voltage feedback value is greater than 5.05V within a certain period of time, or the negative common voltage feedback value is less than 4.95V within a certain period of time, it is considered a distortion phenomenon. The high-level common voltage feedback waveform and the low-level common voltage feedback waveform are continuous waveforms measured within one frame or several frames, with the common voltage level as the center line and the common voltage feedback value as the measured value.

[0054] Step S20: Determine the waveform to be analyzed based on the common voltage feedback waveform;

[0055] It should be noted that this embodiment can be implemented based on the logic circuit in the common voltage compensation circuit. This logic circuit is preferably an OR gate, used to integrate the two VCOM feedback waveforms and perform analog-to-digital conversion to obtain the following result: Figure 7 The waveform diagram of OR gate integration is shown.

[0056] Furthermore, as a feasible embodiment, step S20 above may include:

[0057] Step S21: Integrate the high-level common voltage feedback waveform and the low-level common voltage feedback waveform to obtain the waveform to be analyzed.

[0058] In this embodiment, the logic circuit integrates the high-level common voltage feedback waveform and the low-level common voltage feedback waveform generated by the comparison circuit through positive and negative comparison, as shown in the example below. Figure 6 The VCOM feedback integration waveform diagram shown is presented, and... Figure 6 Locations showing protrusions (both upward and downward protrusions based on the common voltage level are considered protrusions) are integrated into a high level, while other locations are set to the same level, generating a model like... Figure 7 The OR gate integrated waveform shown is the waveform to be analyzed.

[0059] Step S30: Perform data analysis on the waveform to be analyzed to obtain the data analysis results;

[0060] It should be understood that this embodiment can be implemented based on the analysis circuit in the common voltage compensation circuit, and the analysis circuit will... Figure 7 The high level is set as the H duty cycle, and the number of times the high level spike occurs is recorded as the CLK count. The data conditions are set as either the H duty cycle being greater than 1% within a frame or the CLK count being greater than 5 within a frame. After the analysis is completed, the data analysis results are output to the selection circuit in the common voltage compensation circuit.

[0061] Furthermore, as a feasible embodiment, step S30 above may include:

[0062] Step S31: Determine whether the duty cycle time or number of clock cycles in the waveform to be analyzed meets the preset standard, obtain the judgment result, and use the judgment result as the data analysis result.

[0063] It should be noted that this embodiment does not limit the number of frames contained in the waveform to be analyzed. For ease of understanding, only one frame is used as an example for explanation. This does not mean that this embodiment can only refer to the waveform of one frame for data analysis and judgment. The preset standard corresponding to the H duty cycle can be the proportion of time occupied by H in one frame, for example, set to 1%. The preset standard corresponding to the number of CLKs can be the number of CLKs in one frame, for example, set to 5. Then, if the H duty cycle in one frame is greater than 1% or the number of CLKs in one frame is greater than 5, the judgment result is that the common voltage compensation multiple needs to be adjusted. Conversely, if the H duty cycle in one frame is not greater than 1% and the number of CLKs in one frame is not greater than 5, the judgment result is that the common voltage compensation multiple does not need to be adjusted.

[0064] Step S40: Determine the common voltage compensation multiple based on the data analysis results;

[0065] It should be understood that this embodiment can be implemented based on the selection circuit in the common voltage compensation circuit described above. The selection circuit can determine how to select the common voltage compensation multiple based on the data analysis results from the analysis circuit. If adjustment is required, the adjusted multiple is selected as the common voltage compensation multiple. If no adjustment is required, the previously selected multiple is selected as the common voltage compensation multiple. If no adjustment is required and it is the first analysis, the initially set multiple is selected as the common voltage compensation multiple.

[0066] Furthermore, as a feasible embodiment, step S40 above may include:

[0067] Step S41: Determine whether to adjust the count value in the preset counter based on the data analysis results;

[0068] Step S42: Determine the common voltage compensation multiple based on the count value.

[0069] In this embodiment, the selection circuit may include a count (total count, calculated total count) counting unit and a compensation multiple selection unit. The count counting unit includes a preset counter containing a count value. This count value is cleared when a common voltage is first input to the display panel and is generally not cleared or reset during operation. The compensation multiple selection unit contains a table showing the correspondence between the count value and the common voltage compensation multiple. Generally, one count value corresponds to one common voltage compensation multiple. This is because if a count has been made, it indicates that the analysis in the previous steps shows that there is crosstalk in the current VCOM feedback. The reverse compensation multiple of VCOM is insufficient to offset the distortion phenomenon, and it is necessary to further change the compensation multiple to improve the crosstalk phenomenon.

[0070] Furthermore, as a feasible embodiment, step S41 above may include:

[0071] Step S411: If the judgment result is that the duty cycle time or the number of clock cycles in the waveform to be analyzed meets the preset standard, then the count value in the preset counter is incremented by one.

[0072] Step S412: If the judgment result is that the duty cycle time and the number of clock cycles in the waveform to be analyzed do not meet the preset standard, then the count value in the preset counter is not adjusted.

[0073] In this embodiment, a single frame waveform is used as an example for explanation. If the judgment result is that the time occupied by the H duty cycle or the number of CLKs within a frame meets the preset standard, it indicates that adjustment is required. At this time, the count value in the preset counter is incremented by one. After the adjustment of the count value in the count unit is completed, the compensation multiple selection unit selects the corresponding compensation multiple according to the latest count value in the count unit. For example, 000 corresponds to X times, 001 corresponds to 5X times, 100 corresponds to 20X times, etc. 000, 001, and 100 are count values, and X, 5X, and 20X are arbitrary set values. This embodiment does not impose any restrictions on this. Users and administrators of the display device can adjust the compensation multiple corresponding to the count value according to actual needs during system design and use. Correspondingly, if the judgment result is that neither the time occupied by the H duty cycle nor the number of CLKs within a frame meets the preset standard, it indicates that no adjustment is required. In this case, the count value in the preset counter is not changed, and the compensation multiple selection unit outputs the previously selected multiple or the initially set multiple to the amplifier circuit in the common voltage compensation circuit.

[0074] Step S50: Output the amplified common voltage compensation according to the common voltage compensation factor.

[0075] It should be understood that this embodiment can be implemented based on the amplifier circuit in the above-mentioned common voltage compensation circuit. The amplifier circuit can be an operational amplifier circuit or a voltage amplifier circuit constructed with capacitors. After the selection circuit completes the selection of the compensation factor, it will output the VCOM compensation factor to the amplifier circuit. The amplifier circuit selects different voltage amplifier circuits according to the VCOM compensation factor to amplify the reverse compensation VCOM voltage before outputting it to the display panel, thereby improving the crosstalk phenomenon.

[0076] This embodiment provides a common voltage compensation method that overcomes the technical shortcomings of existing technologies, such as the time-consuming and labor-intensive manual adjustment of feedback resistors, low accuracy of compensation factors, inability to apply different compensation factors to different panels, resulting in significant deviations in compensation effects and the continued occurrence of crosstalk. This embodiment can be applied to common voltage compensation circuits in display devices. Since the comparator is designed as a high-speed switch, it has a faster slew rate and shorter delay than operational amplifiers. This embodiment compares the internal feedback VCOM with the comparator, further analyzes the comparison data, and automatically adjusts the amplification factor using the comparison parameters. This achieves automatic determination of a suitable VCOM compensation factor for the panel, thereby improving the accuracy of the VCOM compensation factor. The common voltage compensation circuit in this embodiment has a simple structure, provides a faster slew rate and shorter delay, and allows for different compensation factors to be applied to different display panels and display panels with inter-panel differences, thus avoiding errors and low efficiency caused by manual adjustment and more effectively improving crosstalk.

[0077] Furthermore, embodiments of the present invention also propose a common voltage compensation device, referring to... Figure 8 The common voltage compensation device includes:

[0078] Comparison module 10 is used to obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value;

[0079] Logic module 20, the logic module 20 being used to determine the waveform to be analyzed based on the common voltage feedback waveform;

[0080] Analysis module 30 is used to perform data analysis on the waveform to be analyzed and obtain data analysis results;

[0081] Selection module 40, the selection module 40 is used to determine the common voltage compensation multiple based on the data analysis results;

[0082] Amplification module 50 is used to output amplified common voltage compensation according to the common voltage compensation factor.

[0083] Optionally, the preset threshold includes a positive preset threshold and a negative preset threshold, the common voltage feedback value includes a positive common voltage feedback value and a negative common voltage feedback value, and the comparison module 10 includes: a positive comparison unit, which is used to compare the positive preset threshold and the positive common voltage feedback value to generate a high-level common voltage feedback waveform; and a negative comparison unit, which is used to compare the negative preset threshold and the negative common voltage feedback value to generate a low-level common voltage feedback waveform.

[0084] Optionally, the logic module 20 includes a waveform synthesis unit, which integrates the high-level common voltage feedback waveform and the low-level common voltage feedback waveform to obtain the waveform to be analyzed.

[0085] Optionally, the analysis module 30 includes a judgment unit, which is used to judge whether the duty cycle time or the number of clock cycles in the waveform to be analyzed meets a preset standard, obtain a judgment result, and use the judgment result as a data analysis result.

[0086] Optionally, the selection module 40 includes: a counting unit, which is used to determine whether to adjust the count value in the preset counter based on the data analysis result; and a multiplier selection unit, which is used to determine the common voltage compensation multiplier based on the count value.

[0087] Optionally, the counting unit further includes a counting increment subunit, which is used to increment the count value in the preset counter by one when the judgment result is that the duty cycle time or the number of clock cycles in the waveform to be analyzed meets the preset standard.

[0088] Optionally, the counting unit further includes a maintenance counting subunit, which is used to not adjust the count value in the preset counter when the judgment result is that the duty cycle time and the number of clock cycles in the waveform to be analyzed do not meet the preset standard.

[0089] The specific implementation of the common voltage compensation device is basically the same as the various embodiments of the common voltage compensation method described above. The common voltage compensation device can achieve the same technical effects as the various embodiments of the common voltage compensation method described above, and will not be described again here.

[0090] Furthermore, embodiments of the present invention also propose a display device, which may include: a common voltage compensation circuit, the common voltage compensation circuit comprising a comparator circuit, a logic circuit, an analysis circuit, a selection circuit, and an amplification circuit connected in sequence, and the common voltage compensation circuit can be applied to, for example... Figure 5 The application scenario diagram shown is combined with Figure 5As can be seen, in this embodiment, the comparison circuit includes two comparators. The non-inverting inputs of the two comparators are respectively input to preset thresholds, and the negative inputs are respectively input to VCOM feedback. After positive and negative comparison by the comparators, two common voltage feedback CLK waveforms are generated. Positive and negative comparison refers to taking the portion of VCOM feedback above the VCOM level as positive and the portion below the VCOM level as negative, and comparing them with the preset thresholds respectively. That is, comparing the portion of VCOM feedback above the VCOM voltage level with the sum of the VCOM voltage level and the preset threshold, and generating corresponding waveforms. Similarly, comparing the portion of VCOM feedback below the VCOM voltage level with the difference between the VCOM voltage level and the preset threshold, and generating corresponding waveforms. After the two VCOM feedback waveforms are generated, they are output to the logic circuit. In this embodiment, the logic circuit is preferably an OR gate, used to integrate the two VCOM feedback waveforms to obtain... Figure 6 The VCOM feedback integration waveform diagram shown is also used to... Figure 6 The positions with protrusions are integrated into the high level, while the remaining positions are set to the same level, generating a result like this. Figure 7 The OR gate integrated waveform is shown, and the OR gate integrated waveform is output to the analysis circuit; the analysis circuit is the data analysis module, which will... Figure 7The high-level position is set as the H duty cycle, and the number of times the high-level position spikes appear is recorded as the CLK count. The data conditions are that the H duty cycle is greater than 1% within a frame or the CLK count is greater than 5 within a frame. After the analysis is completed, the data analysis results are output to the selection circuit. The selection circuit, namely the VCOM compensation multiple selection module, includes a count unit and a compensation multiple selection unit. When the common voltage is input to the display panel, the count value in the count unit is cleared to zero. When the data analysis results meet the set data conditions, the count value in the count unit is incremented by one. After adjusting the count value in the count unit, the compensation multiple selection unit selects the corresponding compensation multiple based on the latest count value in the count unit. For example, 000 corresponds to X times, 001 corresponds to 5X times, and 100 corresponds to 20X times. In this embodiment, 000, 001, and 100 are count values, and X, 5X, and 20X are arbitrary set values. This embodiment does not impose any restrictions on these values. Users and administrators of the display device can adjust the compensation multiple corresponding to the count value according to actual needs during system design and use. When the data analysis result does not meet the set data conditions, the count value in the count unit remains unchanged, and the compensation multiple selection unit outputs the previously selected compensation multiple to the amplifier circuit. The amplifier circuit can be an operational amplifier circuit or a voltage amplifier circuit constructed with capacitors. After the selection circuit completes the compensation multiple selection, it outputs the VCOM compensation multiple to the amplifier circuit. The amplifier circuit selects different voltage amplifier circuits according to the VCOM compensation multiple to amplify the reverse compensation VCOM voltage before outputting it to the display panel, thereby improving the crosstalk phenomenon.

[0091] Reference Figure 9 The display device may further include: a processor 1001, a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The processor 1001 may be a central processing unit (CPU), and the communication bus 1002 is used to implement communication between these components. The user interface 1003 may include a display screen, an input unit such as a keyboard, and optionally, a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk drive. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0092] The memory 1005, which serves as a storage medium, may include an operating system, a data storage module, a network communication module, a user interface module, and a common voltage compensation program.

[0093] In the display device, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with the user; in this embodiment, the processor 1001 and memory 1005 can be located in the display device, and the display device calls the common voltage compensation program stored in the memory through the processor 1001 and performs the following operations:

[0094] Obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value;

[0095] The waveform to be analyzed is determined based on the common voltage feedback waveform;

[0096] Data analysis is performed on the waveform to be analyzed to obtain the data analysis results;

[0097] The common voltage compensation factor is determined based on the data analysis results.

[0098] The amplified common voltage compensation is output according to the common voltage compensation factor.

[0099] Furthermore, the preset threshold includes a positive preset threshold and a negative preset threshold, and the common voltage feedback value includes a positive common voltage feedback value and a negative common voltage feedback value; the processor 1001 can call the common voltage compensation program stored in the memory 1005 and also perform the following operations:

[0100] The positive preset threshold and the positive common voltage feedback value are compared to generate a high-level common voltage feedback waveform;

[0101] The negative preset threshold and the negative common voltage feedback value are compared to generate a low-level common voltage feedback waveform.

[0102] Furthermore, the processor 1001 can call the common voltage compensation program stored in the memory 1005 and also perform the following operations:

[0103] The high-level common voltage feedback waveform and the low-level common voltage feedback waveform are integrated to obtain the waveform to be analyzed.

[0104] Furthermore, the processor 1001 can call the common voltage compensation program stored in the memory 1005 and also perform the following operations:

[0105] Determine whether the duty cycle time or number of clock cycles in the waveform to be analyzed meets the preset standard, obtain the determination result, and use the determination result as the data analysis result.

[0106] Furthermore, the processor 1001 can call the common voltage compensation program stored in the memory 1005 and also perform the following operations:

[0107] Based on the data analysis results, determine whether to adjust the count value in the preset counter;

[0108] The common voltage compensation factor is determined based on the count value.

[0109] Furthermore, the processor 1001 can call the common voltage compensation program stored in the memory 1005 and also perform the following operations:

[0110] If the judgment result is that the duty cycle time or the number of clock cycles in the waveform to be analyzed meets the preset standard, then the count value in the preset counter is incremented by one;

[0111] If the judgment result is that the duty cycle time and the number of clock cycles in the waveform to be analyzed do not meet the preset standard, then the count value in the preset counter will not be adjusted.

[0112] Furthermore, embodiments of the present invention also propose a computer-readable storage medium for use in a computer. The computer-readable storage medium can be a non-volatile computer-readable storage medium, and a common voltage compensation program is stored on the computer-readable storage medium. When the common voltage compensation program is executed by a processor, it implements the steps of the common voltage compensation method of the present invention as described above.

[0113] The various embodiments of the display device and computer-readable storage medium of the present invention can be referred to the various embodiments of the common voltage compensation method of the present invention, which will not be repeated here.

[0114] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0115] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0116] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0117] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A common voltage compensation method, characterized in that, The common voltage compensation method includes the following steps: Obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value; The waveform to be analyzed is determined based on the common voltage feedback waveform; Determine whether the duty cycle time or number of clock cycles in the waveform to be analyzed meets the preset standard, obtain the determination result, and use the determination result as the data analysis result; The common voltage compensation factor is determined based on the data analysis results. The amplified common voltage compensation is output according to the common voltage compensation factor.

2. The common voltage compensation method as described in claim 1, characterized in that, The preset threshold includes a positive preset threshold and a negative preset threshold, and the common voltage feedback value includes a positive common voltage feedback value and a negative common voltage feedback value; The step of generating a common voltage feedback waveform based on the preset threshold and the common voltage feedback value includes: The positive preset threshold and the positive common voltage feedback value are compared to generate a high-level common voltage feedback waveform; The negative preset threshold and the negative common voltage feedback value are compared to generate a low-level common voltage feedback waveform.

3. The common voltage compensation method as described in claim 2, characterized in that, The step of determining the waveform to be analyzed based on the common voltage feedback waveform includes: The high-level common voltage feedback waveform and the low-level common voltage feedback waveform are integrated to obtain the waveform to be analyzed.

4. The common voltage compensation method as described in claim 1, characterized in that, The step of determining the common voltage compensation factor based on the data analysis results includes: Based on the data analysis results, determine whether to adjust the count value in the preset counter; The common voltage compensation factor is determined based on the count value.

5. The common voltage compensation method as described in claim 4, characterized in that, The step of determining whether to adjust the count value in the preset counter based on the data analysis results includes: If the judgment result is that the duty cycle time or the number of clock cycles in the waveform to be analyzed meets the preset standard, then the count value in the preset counter is incremented by one.

6. The common voltage compensation method as described in claim 4, characterized in that, The step of determining whether to adjust the count value in the preset counter based on the data analysis results further includes: If the judgment result is that the duty cycle time and the number of clock cycles in the waveform to be analyzed do not meet the preset standard, then the count value in the preset counter will not be adjusted.

7. A common voltage compensation device, characterized in that, The common voltage compensation device includes: The comparison module is used to obtain a preset threshold and a common voltage feedback value, and generate a common voltage feedback waveform based on the preset threshold and the common voltage feedback value; A logic module is configured to determine the waveform to be analyzed based on the common voltage feedback waveform. The analysis module is used to determine whether the duty cycle time or the number of clock cycles in the waveform to be analyzed meets a preset standard, obtain a judgment result, and use the judgment result as the data analysis result. The selection module is used to determine the common voltage compensation multiple based on the data analysis results. An amplification module is used to output an amplified common voltage compensation based on the common voltage compensation factor.

8. A display device, characterized in that, The display device includes: a common voltage compensation circuit, a memory, a processor, and a common voltage compensation program stored in the memory and executable on the processor, wherein the common voltage compensation program, when executed by the processor, implements the steps of the common voltage compensation method as described in any one of claims 1 to 6.

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

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