A driving circuit and a driving method for a display panel

Abstract

The present invention relates to the field of display technologies, and particularly to a driving circuit for a display panel and a driving method thereof. The driving method includes determining a video analysis state of a target display video according to the proportion of key paragraphs and a reference change coefficient of the key paragraphs, and determining a video analysis strategy of the target display video according to the video analysis state; if in a first video analysis state, determining a key regulation area according to dynamic parameters, and adjusting the driving current of the driving circuit corresponding to each key regulation area according to a reference screen display difference value and a dynamic duration; if in a second video analysis state, determining a key regulation area according to display parameters, and determining whether to adjust the driving voltage value for the corresponding regulation area set according to the number of key regulation areas included in each regulation area set. The present invention reduces the energy consumption of the driving circuit while ensuring the video presentation effect of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technologies, and in particular, to a driving circuit for a display panel and a driving method therefor. Background Art

[0002] The driving circuit for a display panel plays a crucial role in the video presentation effect. With the development of video shooting technologies, the difficulty of presenting on the display panel has also increased. To ensure some pictures with complex color or brightness changes, the driving circuit needs to be at a relatively high performance level. However, for the existing driving circuits and driving methods for display panels currently, to meet the requirements of video presentation effects, the driving circuit often remains at a high energy consumption level all the time, resulting in resource loss. Therefore, how to dynamically adjust the control parameters of the driving circuit according to the actual situation of the video to be presented is an urgent problem to be solved by those skilled in the art.

[0003] Chinese Patent Publication No. CN109671398A discloses a driving method for a pixel driving circuit, a display panel, and a display device. In the driving method of the pixel driving circuit, the pixel driving circuit includes: a driving transistor and a light-emitting element; the driving method includes: a data writing stage, a light-emitting stage, and a compensation stage, wherein the light-emitting stage and the compensation stage overlap, and the starting moment of the compensation stage is after the start of the light-emitting stage. The display panel includes a display area and a non-display area; the display area includes a plurality of pixel units arranged in an array, a plurality of light-emitting signal lines, and a plurality of scanning signal lines, and the pixel unit includes a pixel driving circuit, and the pixel driving circuit is driven by the above driving method. The display device includes the above display panel. However, the above technical solution has the following problems: It fails to make targeted adjustments to the control parameters of the driving circuits for different regions of the display panel according to the actual situation of the video to be presented, and it is impossible to reduce the energy consumption loss of the driving circuit while ensuring the video presentation effect of the display panel. Summary of the Invention

[0004] To this end, the present invention provides a driving circuit for a display panel and a driving method therefor, so as to overcome the problem of energy consumption loss of the driving circuit caused by the failure to make targeted adjustments to the control parameters of the driving circuits for different regions of the display panel according to the actual situation of the video to be presented in the prior art.

[0005] To solve the above problems, the present invention provides a driving method for a driving circuit of a display panel, including:

[0006] Determining the video analysis state of the target display video according to the proportion of key paragraphs and the reference change coefficient of the key paragraphs, and determining the video analysis strategy of the target display video according to the video analysis state;

[0007] If in the first video analysis state, the dynamic parameters of the corresponding key display area are determined according to the screen display parameter overlap and the video playback parameters, and the key control area is determined according to the dynamic parameters. The driving current of the driving circuit corresponding to each key control area is adjusted according to the reference screen display difference value and the dynamic duration;

[0008] If in the second video analysis state, the key control area is determined according to the display parameters, and the key control area is divided to obtain a control area set. According to the number of key control areas contained in each control area set, it is determined whether to adjust the driving voltage value for the corresponding control area set.

[0009] Furthermore, the video analysis status of the target display video is determined according to the key paragraph ratio and the reference variation coefficient of the key paragraph.

[0010] If the key paragraph ratio of the target display video is greater than the preset key paragraph ratio or the reference variation coefficient is greater than the preset reference variation coefficient, it is determined that the target display video is in the first video analysis state;

[0011] If the key paragraph ratio of the target display video is less than or equal to the preset key paragraph ratio or the reference variation coefficient is less than or equal to the preset reference variation coefficient, it is determined that the target display video is in the second video analysis state.

[0012] Furthermore, a plurality of target video frames are extracted at the same time interval of the target display video, and a screen display reference value of each target video frame and a ratio of overlapping pixels between the target video frames are detected;

[0013] The screen richness of any key segment is positively correlated with the screen reference value of the target video frame it contains;

[0014] The video frame variation coefficient of any key segment is negatively correlated with the percentage of overlapping pixels of the target video frame it contains;

[0015] The screen display richness of any key segment of the target display video is greater than the preset screen display richness and the video frame variation coefficient is greater than the preset variation coefficient.

[0016] Further, determining a video analysis strategy for the target display video according to the video analysis status;

[0017] If the target display video is in the first video analysis state, determining the key control area of the target display panel according to the dynamic parameters;

[0018] If the target display video is in the second video analysis state, a key control area of the target display panel is determined according to the display parameters.

[0019] Further, when determining the key regulation area of the target display panel according to the dynamic parameters, divide the target display panel into several display areas with the same area, periodically monitor the picture of the target display video, and mark the display area containing the edge of the display main body in the area picture as the key display area;

[0020] Determine the dynamic parameters of the corresponding key display area according to the screen display parameter coincidence degree and video playback parameters of each key display area;

[0021] The dynamic parameter has a negative correlation with the screen display parameter coincidence degree;

[0022] The dynamic parameter has a positive correlation with the video playback parameter.

[0023] Further, determine the key regulation area of the target display panel according to the dynamic parameters, and mark the key display area with a dynamic parameter greater than the preset dynamic parameter as the key regulation area;

[0024] For a single key regulation area, increase and adjust the column drive current value of the drive circuit corresponding to the key regulation area according to the reference screen display difference value and the dynamic duration;

[0025] The increased value of the column drive current value has a positive correlation with the reference screen display difference value and the dynamic duration respectively.

[0026] Further, determine whether to perform secondary setting on the column drive current value according to the distribution state of the key regulation areas and the drive parameter difference value;

[0027] If the drive parameter difference value of each key regulation area in a dense area is greater than the preset drive parameter difference value, perform secondary setting on the column drive current value of each key regulation area in the dense area, and set the reference drive current value as the column drive current value of each key regulation area in the dense area.

[0028] Further, when determining the key regulation area of the target display panel according to the display parameters, divide the target display panel into several display areas with the same area, periodically detect the display parameters of each display area, and mark the display area with the display parameter of the area picture less than the preset display parameter as the key regulation area;

[0029] Determine the regulation area set according to the distribution state of each key regulation area and the display parameters.

[0030] Further, determine whether to adjust the drive voltage value for the corresponding regulation area set according to the number of key regulation areas included in each regulation area set;

[0031] If the number of key regulation regions included in a set of regulation regions is greater than a preset region number, the drive voltage value for the included display regions is adjusted downward according to the reference display parameter of the set of regulation regions;

[0032] The decrease value of the drive voltage value has a positive correlation with the reference display parameter;

[0033] The reference display parameter is the average value of the display parameters of the display regions included in the set of regulation regions.

[0034] The present invention also provides a drive circuit for a display panel, including:

[0035] A drive control module for controlling in real time the column drive current value and the drive voltage value of the drive circuit;

[0036] A voltage regulation sub-module connected to the drive control module for outputting a working voltage to the drive circuit and adjusting the drive voltage value according to actual requirements;

[0037] A current regulation sub-module connected to the drive control module for adjusting the column drive current value of the drive circuit;

[0038] A drive module respectively connected to the voltage regulation sub-module and the current regulation sub-module for converting a control signal into an electrical signal capable of driving the display panel to control the display pixels of the target display panel.

[0039] Compared with the prior art, the beneficial effect of the present invention is that in the technical solution of the present invention, the video analysis state of the target display video is determined according to the proportion of key paragraphs and the reference change coefficient of the key paragraphs, and the video analysis strategy of the target display video is determined according to the video analysis state, so that the method for determining the key regulation regions is more in line with the actual video situation, ensuring that the subsequent adjustment of the control parameters of the drive circuit is more accurate. The present invention reduces the energy consumption of the drive circuit while ensuring the video presentation effect of the display panel.

[0040] Further, in the present invention, key paragraphs are determined according to the screen display reference value of each target video frame and the overlapping pixel proportion between the target video frames, and the video analysis state of the target display video is determined according to the proportion of key paragraphs and the reference change coefficient of the key paragraphs, so as to determine the color or brightness change situation of the picture in the target display video, ensuring that the subsequent key regulation method is more in line with the actual video situation and avoiding additional analysis processes.

[0041] Further, when the target display video is in the first video analysis state in the present invention, the color or brightness change in the target display video is relatively frequent. Since the edge of the display main body is likely to cause color or brightness changes, the dynamic parameters of the display area including the edge of the display main body are detected, and the dynamic parameters are determined according to the screen display parameter coincidence degree and the video playback parameters, which can effectively represent the changes and display requirements in the display area, and determine the display area that needs to adjust the driving current according to the dynamic parameters. While ensuring the video presentation effect of the display panel, the energy consumption loss of the driving circuit in the remaining area is avoided.

[0042] Further, in the present invention, it is determined whether to perform secondary setting on the driving current according to the distribution state of the key regulation areas and the driving parameter difference value, and the driving current of the key regulation areas included in the dense areas with larger driving parameter difference values is adjusted to avoid large driving parameter differences in adjacent areas, resulting in obvious differences in video presentation effects and affecting the overall presentation effect of the display panel.

[0043] Further, when the target display video is in the second video analysis state in the present invention, the color or brightness change in the target display area is less. Therefore, considering the presentation requirements of the pictures in different areas, the driving parameters are adjusted, and the key regulation areas are determined according to the display parameters, that is, the areas with richer color and lower brightness in the corresponding area pictures are recorded as the key regulation areas, and such areas are divided to ensure that the presentation requirements in the obtained regulation area set are close and the distances are close, and it is determined whether to adjust the driving voltage value according to the number of key regulation areas included therein, which can appropriately reduce the energy consumption of the driving circuit when the color or brightness requirement in a certain area is low. Description of the Drawings

[0044] Figure 1 It is a schematic diagram of the driving method of the driving circuit of the display panel of the present invention;

[0045] Figure 2 It is a flowchart of determining the video analysis state of the target display video according to the proportion of key paragraphs and the reference change coefficient of key paragraphs in the present invention;

[0046] Figure 3 It is a flowchart of determining the video analysis strategy of the target display video according to the video analysis state in the present invention;

[0047] Figure 4 It is a circuit connection diagram of the driving circuit of the display panel of the present invention. Detailed Embodiments

[0048] To make the objectives and advantages of the present invention more clearly understood, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0050] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0051] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] Please refer to Figures 1 to 3 As shown, the present invention provides a driving method for a driving circuit of a display panel, including:

[0053] Determine the video analysis state of the target display video according to the proportion of key paragraphs and the reference change coefficient of key paragraphs, and determine the video analysis strategy of the target display video according to the video analysis state;

[0054] If in the first video analysis state, determine the dynamic parameters of the corresponding key display area according to the screen display parameter coincidence degree and the video playback parameters, determine the key regulation area according to the dynamic parameters, and adjust the driving current of the driving circuit corresponding to each key regulation area according to the reference screen display difference value and the dynamic duration;

[0055] If in the second video analysis state, determine the key regulation area according to the display parameters, divide the key regulation area to obtain a set of regulation areas, and determine whether to adjust the driving voltage value for the corresponding set of regulation areas according to the number of key regulation areas included in each set of regulation areas.

[0056] Among them, in the present invention, the target display panel is a display panel for which the control parameters of the driving circuit need to be adjusted. The target display video is the video that the target display panel currently needs to present. The target display panel corresponds to a number of display pixel points for presenting video content. Each display pixel point is a light-emitting element. In the present invention, there are a number of driving circuits for the target display panel to control it in a divided area. The area served by each driving circuit is denoted as a display area, and the areas of each display area are the same. For any moment, the partial video frame of the video frame that each display area needs to present at this moment is denoted as the area picture corresponding to each display area;

[0057] In the present invention, there are a number of historical analysis records. Any historical analysis record records at least one key paragraph ratio, reference change coefficient, screen display richness, video frame change coefficient, dynamic parameter, number of key regulation areas, driving parameter difference value, display parameter, and display parameter difference value in the parameter control process of the driving circuit of the target display panel based on the target display video. And each historical monitoring record corresponds to a qualified mark, and the qualified mark records whether the video presentation effect and energy consumption saving effect of the target display panel meet the user's requirements.

[0058] Specifically, the video analysis state of the target display video is determined according to the key paragraph ratio and the reference change coefficient of the key paragraph.

[0059] If the key paragraph ratio of the target display video is greater than the preset key paragraph ratio or the reference change coefficient is greater than the preset reference change coefficient, it is determined that the target display video is in the first video analysis state;

[0060] If the key paragraph ratio of the target display video is less than or equal to the preset key paragraph ratio or the reference change coefficient is less than or equal to the preset reference change coefficient, it is determined that the target display video is in the second video analysis state.

[0061] Among them, the proportion of the key paragraphs = the sum of the durations of each key paragraph in the target display video / the duration of the target display video. The reference change coefficient is the average value of the paragraph change coefficients of each key paragraph in the target display video. For a single key paragraph, the paragraph change coefficient is the sum of the screen display richness of the key paragraph and the video frame change coefficient. The values of the preset key paragraph proportion and the preset reference change coefficient can be determined by the user according to the actual working scenario. For example, the user can set according to the historical analysis record. The higher the user's requirements for the video presentation effect and energy consumption saving effect of the target display panel, the larger the value of the preset key paragraph proportion and the larger the value of the preset reference change coefficient. A method for obtaining the value of the preset key paragraph proportion is provided. The historical analysis record of the target display video in the first video analysis state is recorded as the first reference record. The minimum value of the key paragraph proportions of each target display video in the first reference record that meets the user's requirements for the video presentation effect and energy consumption saving effect of the target display panel is recorded as the preset key paragraph proportion. A value for the preset key paragraph proportion is provided, and the value of the preset key paragraph proportion is 0.3. A method for obtaining the value of the preset reference change coefficient is provided. The minimum value of the reference change coefficients of each target display video in the first reference record that meets the user's requirements for the video presentation effect and energy consumption saving effect of the target display panel is recorded as the preset reference change coefficient.

[0062] Specifically, several target video frames are extracted from the target display video at the same time interval, and the screen display reference value of each target video frame and the proportion of overlapping pixels between the target video frames are detected;

[0063] The screen display richness of any key paragraph is positively correlated with the screen display reference value of the target video frames it contains;

[0064] The video frame change coefficient of any key paragraph is negatively correlated with the proportion of overlapping pixels of the target video frames it contains;

[0065] The screen display richness of any key paragraph of the target display video is greater than the preset screen display richness and the video frame change coefficient is greater than the preset change coefficient.

[0066] Among them, the brightness values and RGB combination values of each display pixel corresponding to each target video frame on the target display panel are detected. Pixel combinations are determined based on the brightness values and RGB combination values of each display pixel. Display pixels with the same brightness value and RGB combination value are recorded as the same pixel combination. For a single target video frame, the screen display reference value is the number of pixel combinations corresponding to the target video frame on the target display panel. For any key paragraph, the screen display richness is the average value of the screen display reference values of each target video frame included in the key paragraph. The proportion of overlapping pixels = the number of overlapping pixels in the target display panel / the number of display pixels in the target display panel. If the brightness value and RGB combination value of a display pixel are the same in each target video frame included in the key paragraph, then the display pixel is recorded as an overlapping pixel. How to detect the brightness values and RGB combination values of each display pixel corresponding to each target video frame on the target display panel is easy for those skilled in the art to understand and will not be elaborated here;

[0067] For the values of the preset screen display richness and the preset change coefficient, users can determine them according to the actual working scenario. For example, users can set them according to historical analysis records. The higher the requirements of users for the video presentation effect and energy consumption saving effect of the target display panel, the smaller the value of the preset screen display richness and the smaller the value of the preset change coefficient. A method for obtaining the value of the preset screen display richness is provided. The minimum value of the screen display richness of each key paragraph in the first reference record that meets the users' requirements for the video presentation effect and energy consumption saving effect of the target display panel is recorded as the preset screen display richness. A method for obtaining the value of the preset change coefficient is provided. The average value of the video frame change coefficients of each key paragraph in the first reference record that meets the users' requirements for the video presentation effect and energy consumption saving effect of the target display panel is recorded as the preset change coefficient.

[0068] Specifically, the video analysis strategy of the target display video is determined according to the video analysis state;

[0069] If the target display video is in the first video analysis state, the key regulation area of the target display panel is determined according to the dynamic parameters;

[0070] If the target display video is in the second video analysis state, the key regulation area of the target display panel is determined according to the display parameters.

[0071] Specifically, when determining the key regulation area of the target display panel according to the dynamic parameters, the target display panel is divided into several display areas with the same area. The target display video is periodically monitored for the picture. The display area containing the edge of the display subject in the area picture is recorded as the key display area;

[0072] Determine the dynamic parameters of the corresponding key display area according to the coincidence degree of the screen display parameters and the video playback parameters of each key display area;

[0073] The dynamic parameter is negatively correlated with the coincidence degree of the screen display parameters;

[0074] The dynamic parameter is positively correlated with the video playback parameters.

[0075] Among them, the display main body is a portrait, a plant or an animal, and an item with a relatively large proportion of the picture in the target display video. How to extract the display main body of the target display video and how to determine the edge of the display main body are easy to understand for those skilled in the art and will not be elaborated here. In the present invention, a cyclic video analysis period is applied. The duration of the video analysis period can be determined by the user himself. The higher the user's requirements for the video presentation effect and energy consumption saving effect of the target display panel, the shorter the duration of the video analysis period. A duration of the video analysis period is provided. The video analysis period is 1 min. When the target display video is in the first video analysis state, at the end of each video analysis period, the video frame corresponding to the current moment in the target display video is monitored for the picture;

[0076] For a single key display area, the dynamic parameter = ln(video playback parameter / screen display parameter coincidence degree). The video playback parameter is determined according to the frame rate of the target display video and the display resolution of the target display panel. The video playback parameter is the sum of the products of the frame rate of the target display video and the display resolution of the target display panel and their corresponding influence parameters, which can be determined by the user according to the actual working scenario. Values of the influence parameters corresponding to the frame rate of the target display video and the display resolution of the target display panel are provided. The influence parameter corresponding to the frame rate of the target display video is 0.5, and the influence parameter corresponding to the display resolution of the target display panel is 0.5. The screen display parameter coincidence degree = the number of coincident screen display pixels in this key display area / the number of display pixels in this key display area. The display pixels with the same brightness value and RGB combination value detected at the end of the current video analysis period and the previous video analysis period in this key display area are recorded as the coincident screen display pixels in this key display area. How to determine the frame rate of the target display video and the display resolution of the target display panel are easy to understand for those skilled in the art and will not be elaborated here.

[0077] Specifically, determine the key regulation area of the target display panel according to the dynamic parameter, and record the key display area with the dynamic parameter greater than the preset dynamic parameter as the key regulation area;

[0078] For a single key regulation area, increase and adjust the column drive current value of the drive circuit corresponding to this key regulation area according to the reference screen display difference value and the dynamic duration;

[0079] The increase values of the column driving current values are respectively positively correlated with the reference screen display difference value and the dynamic duration.

[0080] Among them, for the value of the preset dynamic parameter, the user can determine it according to the actual working scenario. For example, the user can set it according to the historical analysis record. The higher the requirement of the user for the video presentation effect of the target display panel, the smaller the value of the preset dynamic parameter. A method for obtaining the value of the preset dynamic parameter is provided. The minimum value of the dynamic parameters of each key regulation area in the first reference record that meets the user's requirement for the video presentation effect of the target display panel is recorded as the preset dynamic parameter.

[0081] Determine the key regulation coefficient of each key regulation area according to the reference screen display difference value and the dynamic duration. The increase value of the column driving current value is positively correlated with the key regulation coefficient. For a single key regulation area, the key regulation coefficient = ln (reference screen display difference value × dynamic duration). For any display pixel point included in this key regulation area, the absolute value of the difference between the brightness value detected at the end of the current video analysis period and the previous video analysis period is recorded as the screen display difference value of this display pixel point. The reference screen display difference value is the average value of the screen display difference values of each display pixel point. The column driving current value is the current value of the column driving circuit. The column driving circuit is a circuit that provides current or voltage signals to the column electrodes of the display panel.

[0082] Specifically, determine whether to perform secondary setting on the column driving current value according to the distribution state of the key regulation areas and the driving parameter difference value.

[0083] If the driving parameter difference value of each key regulation area in a dense area is greater than the preset driving parameter difference value, perform secondary setting on the column driving current values of each key regulation area in this dense area, and set the reference driving current value as the column driving current values of each key regulation area in this dense area.

[0084] Among them, for any key regulation area, the distribution state is determined according to the number of key regulation areas within the preset adjustment range of this key regulation area. The distribution state of the key regulation area with the number of complete key regulation areas included in the preset adjustment range greater than the preset number of key areas is recorded as the dense state. The distribution state of the key regulation area with the number of complete key regulation areas included in the preset adjustment range less than or equal to the preset number of key areas is recorded as the discrete state. The preset adjustment range is a circular area with the center point of this key regulation area as the center and the preset adjustment length corresponding to this key regulation area as the radius. When the target display video is in the first video analysis state, the preset adjustment length is positively correlated with the key regulation coefficient of each key regulation area.

[0085] The value of the preset number of key regions can be determined by the user according to the actual working scenario. For example, the user can set it according to the historical analysis record. The higher the user's requirements for the video presentation effect and energy consumption saving effect of the target display panel, the smaller the value of the preset number of key regions. A method for obtaining the value of the preset number of key regions is provided. The average value of the number of key control regions within the preset adjustment range of each key control region in a dense state in the historical analysis record that meets the user's requirements for the video presentation effect and energy consumption saving effect of the target display panel is recorded as the preset number of key regions;

[0086] There is at least one associated region for each key control region included in any dense region obtained by division. If there are the same key control regions within the preset adjustment ranges of two key control regions, it is determined that the two key control regions are associated regions with each other. For any dense region, the driving parameter difference value = , where m is the number of key control regions included in this dense region, is the column driving current value of the j-th key control region in this dense region, is the average value of the column driving current values of each key control region in this dense region;

[0087] The value of the preset driving parameter difference value can be determined by the user according to the actual working scenario. For example, the user can set it according to the historical analysis record. The higher the user's requirements for the video presentation effect of the target display panel, the smaller the value of the preset driving parameter difference value. A method for obtaining the value of the preset driving parameter difference value is provided. The minimum value of the driving parameter difference values of the dense regions where the column driving current values are secondarily set in the first reference record that meets the user's requirements for the video presentation effect of the target display panel is recorded as the preset driving parameter difference value. If the driving parameter difference value of each key control region in a dense region is greater than the preset driving parameter difference value, the reference driving current value is the average value of the column driving current values of each key control region in this dense region before the secondary setting.

[0088] Specifically, when determining the key control regions of the target display panel according to the display parameters, the target display panel is divided into several display regions with the same area, and the display parameters of each display region are periodically detected. The display region with the display parameter of the regional picture less than the preset display parameter is recorded as the key control region;

[0089] The set of control regions is determined according to the distribution state and display parameters of each key control region.

[0090] When the target display video is in the second video analysis state, at the end of each video analysis cycle, the display parameters of each display area are detected. The display parameter of any display area has a positive correlation with the number of pixel combinations included in the area image corresponding to the display area at the current moment. The value of the preset display parameter can be determined by the user according to the actual working scenario. For example, the user can set it according to the historical analysis record. The higher the user's requirement for the video presentation effect of the display panel, the smaller the value of the preset display parameter. A method for obtaining the value of the preset display parameter is provided. The historical analysis record of the target display video in the second video analysis state is recorded as the second reference record, and the maximum value of the display parameters of each key regulation area in the second reference record that meets the user's requirement for the video presentation effect of the display panel is recorded as the preset display parameter;

[0091] When the target display video is in the first video analysis state, the preset adjustment length has a positive correlation with the display parameters of each key regulation area. The display parameter difference value of any regulation area set is less than the preset display parameter difference value, and at least one relevant area exists for each key regulation area included in the regulation area set. For a single regulation area set, the display parameter difference value = , where n is the number of key regulation areas included in the regulation area set, is the display parameter of the i-th key regulation area in the regulation area set, is the average value of the display parameters of each key regulation area in the regulation area set;

[0092] The value of the preset display parameter difference value can be determined by the user according to the actual working scenario. For example, the user can set it according to the historical analysis record. The higher the user's requirement for the video presentation effect of the display panel, the smaller the value of the preset display parameter difference value. A method for obtaining the value of the preset display parameter difference value is provided. The average value of the display parameter difference values of each regulation area set in the second reference record that meets the user's requirement for the video presentation effect of the display panel is recorded as the preset display parameter difference value.

[0093] Specifically, it is determined whether to adjust the driving voltage value for the corresponding regulation area set according to the number of key regulation areas included in each regulation area set;

[0094] If the number of key regulation areas included in a regulation area set is greater than the preset area number, the driving voltage value of the display area included is reduced according to the reference display parameter of the regulation area set;

[0095] The reduction value of the driving voltage value has a positive correlation with the reference display parameter;

[0096] The reference display parameter is the average value of the display parameters of the display areas included in the set of regulated areas.

[0097] Among them, the value of the preset number of areas can be determined by the user according to the actual working scenario. For example, the user can set it according to the historical analysis record. A method for obtaining the value of the preset number of areas is provided. The average value of the number of key regulated areas in each set of regulated areas for adjusting the driving voltage value in the second reference record that meets the requirements of the user for the video presentation effect and energy consumption saving effect of the display panel is recorded as the preset number of areas. If the number of key regulated areas included in a set of regulated areas is greater than the preset number of areas, the driving voltage value of the display area included in this set of regulated areas will not be adjusted. Only when the key regulated areas are concentrated and the display parameters have little difference, the driving voltage value will be adjusted. This can reduce the energy consumption of the driving circuit of the display panel on the premise of ensuring the overall presentation effect of the display panel. The driving voltage value is the voltage value corresponding to the electric energy provided by the driving circuit for the display panel.

[0098] Please refer to Figure 4 As shown, the present invention also provides a driving circuit for a display panel, including:

[0099] A driving control module for real-time controlling the column driving current value and the driving voltage value of the driving circuit;

[0100] A voltage regulation sub-module connected to the driving control module for outputting a working voltage to the driving circuit and adjusting the driving voltage value according to actual requirements;

[0101] A current regulation sub-module connected to the driving control module for adjusting the column driving current value of the driving circuit;

[0102] A driving module respectively connected to the voltage regulation sub-module and the current regulation sub-module for converting a control signal into an electric signal capable of driving the display panel to control the display pixel points of the target display panel.

[0103] Among them, each driving circuit in the present invention is connected to the display panel, and each driving circuit corresponds to a display area.

[0104] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0105] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention; for those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A driving method for a driving circuit of a display panel, characterized in that, Including: Determine the video analysis status of the target display video according to the proportion of key paragraphs and the reference change coefficient of key paragraphs, and determine the video analysis strategy of the target display video according to the video analysis status; If in the first video analysis state, determine the dynamic parameters of the corresponding key display area according to the screen display parameter coincidence degree and video playback parameters, determine the key regulation area according to the dynamic parameters, and adjust the driving current of the driving circuit corresponding to each key regulation area according to the reference screen display difference value and dynamic duration; If in the second video analysis state, determine the key regulation area according to the display parameters, divide the key regulation area to obtain a set of regulation areas, and determine whether to adjust the driving voltage value for the corresponding set of regulation areas according to the number of key regulation areas included in each set of regulation areas; Determine the video analysis status of the target display video according to the proportion of key paragraphs and the reference change coefficient of key paragraphs, If the proportion of key paragraphs of the target display video is greater than the preset proportion of key paragraphs or the reference change coefficient is greater than the preset reference change coefficient, it is determined that the target display video is in the first video analysis state; If the proportion of key paragraphs of the target display video is less than or equal to the preset proportion of key paragraphs or the reference change coefficient is less than or equal to the preset reference change coefficient, it is determined that the target display video is in the second video analysis state.

2. The driving method of the driving circuit of the display panel according to claim 1, wherein Extract a number of target video frames at the same interval for the target display video, and detect the screen display reference value of each target video frame and the proportion of overlapping pixels between target video frames; The screen display richness of any key paragraph is positively correlated with the screen display reference value of the target video frames it contains; The video frame change coefficient of any key paragraph is negatively correlated with the proportion of overlapping pixels of the target video frames it contains; The screen display richness of any key paragraph of the target display video is greater than the preset screen display richness and the video frame change coefficient is greater than the preset change coefficient.

3. The driving method of the driving circuit of the display panel according to claim 2, wherein Determine the video analysis strategy of the target display video according to the video analysis status; If the target display video is in the first video analysis state, determine the key regulation area of the target display panel according to the dynamic parameters; If the target display video is in the second video analysis state, determine the key regulation area of the target display panel according to the display parameters.

4. The driving method of the driving circuit of the display panel according to claim 3, characterized in that, When determining the key regulation area of the target display panel according to the dynamic parameters, divide the target display panel into several display areas with the same area, periodically monitor the picture of the target display video, and record the display area containing the edge of the display main body in the area picture as the key display area; Determine the dynamic parameters of the corresponding key display area according to the screen display parameter coincidence degree and video playback parameters of each key display area; The dynamic parameter is negatively correlated with the screen display parameter coincidence degree; The dynamic parameter is positively correlated with the video playback parameter.

5. The driving method of the driving circuit of the display panel according to claim 4, characterized in that, Determine the key regulation area of the target display panel according to the dynamic parameters, and record the key display area with the dynamic parameter greater than the preset dynamic parameter as the key regulation area; For a single key regulation area, increase and adjust the column driving current value of the driving circuit corresponding to the key regulation area according to the reference screen display difference value and dynamic duration; The increase value of the column driving current value is positively correlated with the reference screen display difference value and the dynamic duration respectively.

6. The driving method of the driving circuit of the display panel according to claim 5, wherein Determine whether to perform secondary setting on the column driving current value according to the distribution state of the key regulation areas and the driving parameter difference value; If the driving parameter difference value of each key regulation area in a dense area is greater than the preset driving parameter difference value, perform secondary setting on the column driving current value of each key regulation area in this dense area, and set the reference driving current value as the column driving current value of each key regulation area in this dense area.

7. The driving method of the driving circuit of the display panel according to claim 6, wherein When determining the key regulation areas of the target display panel according to the display parameters, divide the target display panel into several display areas with the same area, periodically detect the display parameters of each display area, and record the display area with the display parameter of the area picture less than the preset display parameter as the key regulation area; Determine the regulation area set according to the distribution state of each key regulation area and the display parameters.

8. The driving method of the driving circuit of the display panel according to claim 7, wherein Determine whether to adjust the driving voltage value for the corresponding regulation area set according to the number of key regulation areas included in each regulation area set; If the number of key regulation areas included in a regulation area set is greater than the preset area number, perform a reduction adjustment on the driving voltage value of the display areas included according to the reference display parameters of this regulation area set; The reduction value of the driving voltage value is positively correlated with the reference display parameter; The reference display parameter is the average value of the display parameters of the display areas included in the regulation area set.

9. A driving circuit for a display panel applying the driving method according to any one of claims 1 to 8, characterized in that, Including: A driving control module for real-time controlling the column driving current value and the driving voltage value of the driving circuit; A voltage regulation sub-module, connected to the driving control module, for outputting a working voltage to the driving circuit and adjusting the driving voltage value according to actual requirements; A current regulation sub-module, connected to the driving control module, for adjusting the column driving current value of the driving circuit; A driving module, respectively connected to the voltage regulation sub-module and the current regulation sub-module, for converting the control signal into an electrical signal capable of driving the display panel to control the display pixel points of the target display panel.

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