Display method and display device

Abstract

The invention provides a display method and a display device. The display method comprises the following steps: acquiring a plurality of pieces of first frame image information corresponding to a plurality of continuous first frame pictures; dividing a plurality of areas in a display area according to the plurality of pieces of first frame image information, wherein different areas have different change frequencies of image information in a plurality of first frame images; determining a corresponding refresh rate according to the change frequency of the picture information of each region in the plurality of first frames of pictures; and according to the refresh rate of each region, driving the sub-pixels in the region to carry out picture display, so that the flexibility of partition frequency division of the display device is improved, and high fluency of a display picture and low power consumption of the display device are both considered.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display method and a display device. Background Art

[0002] LCD (Liquid Crystal Display) panels are displays mainly composed of liquid crystal molecules and have the characteristics of high brightness, wide viewing angle, and rich colors.

[0003] Traditional LCD panels display multiple frames at the same refresh rate across their entire display area. Based on this, LCD panels can feature zoned frequency modulation, meaning different areas of the display can have different refresh rates. This reduces panel power consumption by lowering the refresh rate in some areas. However, with existing zoned frequency modulation, the refresh rate for each area is fixed. This means that even when the actual display content in that area changes at a higher or lower rate, the area still refreshes at the same fixed refresh rate, limiting the application scenarios of zoned frequency modulation in LCD panels. Summary of the Invention

[0004] An object of the present invention is to provide a display method and a display device to improve the technical problem that the existing LCD panel has a limited application scenario of the function of dividing the frequency into different zones.

[0005] An embodiment of the present invention provides a display method, comprising:

[0006] Acquire multiple first frames of image information corresponding to multiple consecutive first frames;

[0007] Dividing the display area into a plurality of regions according to the plurality of first frames of image information, wherein different regions have different frequencies of change of the image information within the plurality of first frames;

[0008] Determining a corresponding refresh rate according to a frequency of change of the image information of each region within the plurality of first frames;

[0009] A plurality of sub-pixels in each of the regions are driven according to the refresh rate of the region to perform image display.

[0010] In some embodiments, the step of dividing the display area into multiple areas according to the first image information includes:

[0011] Acquire a plurality of first display information corresponding to a plurality of display units in each of the first frame image information;

[0012] According to the change frequency of the multiple first display information of each of the multiple display units in the multiple first frame images, the multiple display units are divided into multiple areas, and the change frequency of the first display information of the display units in different areas is within different ranges.

[0013] In some embodiments, after the step of dividing the display area into multiple areas according to the plurality of first frames of image information, the method further includes:

[0014] determining a corresponding buffering frequency according to a frequency of change of the image information of each area;

[0015] The image information in the corresponding buffer is refreshed according to the buffering frequency of each area.

[0016] In some embodiments, the step of driving the plurality of sub-pixels in each region to display an image according to the refresh rate of the region includes:

[0017] According to the refresh rate of each of the regions and the plurality of picture information corresponding to the plurality of first frames, the region is driven to perform picture display in a plurality of consecutive first frames.

[0018] In some embodiments, the step of determining a corresponding refresh rate according to a frequency of change of the image information of each region within the plurality of first frames includes:

[0019] determining a corresponding priority according to a frequency of change of the image information of each area, wherein the priority is positively correlated with the frequency of change of the image information;

[0020] The refresh rate of the region corresponding to the plurality of first frames is determined according to the priority, and the priority and the refresh rate of the region corresponding to the plurality of first frames are positively correlated.

[0021] In some embodiments, after the step of driving the plurality of sub-pixels in each region to display an image according to the refresh rate of each region, the method further includes:

[0022] Acquire a plurality of second frames of image information corresponding to a plurality of consecutive second frames located after the plurality of first frames;

[0023] determining a frequency of change of the picture information of the region within the plurality of second frames according to the plurality of second frames of image information;

[0024] determining whether to adjust the priority of the region according to a frequency of change of picture information of the region in a plurality of second frames;

[0025] adjusting the refresh rate of the region corresponding to the plurality of first frames according to the adjusted priority;

[0026] A plurality of sub-pixels in each area are driven according to the adjusted refresh rate of the area to perform image display.

[0027] In some embodiments, the step of determining whether to adjust the priority of the region based on a frequency of change of image information of the region in a plurality of second frames includes:

[0028] When the frequency of change of the picture information of the region in the plurality of second frames is less than a first preset change rate and the priority corresponding to the region is higher than the first preset priority, lowering the priority of the region;

[0029] When the frequency of change of the picture information of the area in multiple second-frame pictures is greater than the second preset change rate and the priority corresponding to the area is lower than the second preset priority, the priority of the area is increased, the second preset change rate is greater than the first preset change rate, and the second preset priority is lower than the first preset priority.

[0030] In some embodiments, the step of driving the plurality of sub-pixels in each region to display an image according to the refresh rate of each region includes:

[0031] For the area corresponding to the priority greater than or equal to the priority threshold, when the picture information of the area in the first frame changes, adjusting the refresh rate of the area to control the display picture of the area to be updated to the display picture corresponding to the changed picture information;

[0032] For the area corresponding to the priority less than the priority threshold, after a preset period of time in the first frame, it is determined whether the picture information of the area in the first frame has changed; when the picture information of the area in the first frame has changed, the refresh rate of the area is adjusted to control the display picture of the area to be updated to the display picture corresponding to the changed picture information.

[0033] In some embodiments, after the step of determining whether to adjust the priority of the region based on the frequency of changes in the image information of the region in the plurality of second frames, the method further includes:

[0034] The value of the corresponding voltage signal is determined according to the priority of the area, and the voltage signal includes a first voltage signal and a second voltage signal. The first voltage signal and the second voltage signal are used to generate a gate signal. At least one of the first voltage signal and the second voltage signal corresponding to the areas with different priorities is different.

[0035] In some embodiments, the step of driving the plurality of sub-pixels in each region to display an image according to the adjusted refresh rate of each region includes:

[0036] Determining a corresponding refresh rate according to the priority of the area;

[0037] According to the refresh rate of each area, multiple sub-pixels in the area are driven to display the picture, and the buffer of each area is controlled to refresh the corresponding picture information between two adjacent frames in at least part of the frames displayed in the display area.

[0038] An embodiment of the present invention further provides a display device, comprising:

[0039] A microcontroller, configured to store continuous multiple frames of picture information of the display device;

[0040] Display panel;

[0041] A driving circuit is electrically connected between the microcontroller and the display panel, and is used to obtain multiple first-frame image information corresponding to multiple consecutive first-frame images from the microcontroller, and is used to divide the display area into multiple areas according to the multiple first-frame image information, wherein different areas have different frequencies of change of image information in the multiple first-frame images, and is used to determine the corresponding refresh rate according to the frequency of change of the image information in each area within the multiple first-frame images, and is used to drive multiple sub-pixels in the area to display the image according to the refresh rate of each area.

[0042] The present invention provides a display method and a display device. The display method obtains multiple first-frame image information corresponding to multiple consecutive first-frame pictures, and divides a display area into multiple areas according to the multiple first-frame image information. Different areas have different frequencies of change of picture information in the multiple first-frame pictures, and the corresponding refresh rate is determined according to the frequency of change of the picture information in each area in the multiple first-frame pictures. Then, according to the refresh rate of each area, the sub-pixels in the area are driven to display the picture, thereby improving the flexibility of the partitioning and frequency division of the display device, so as to take into account the high smoothness of the displayed picture and the low power consumption of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figures 1 to 10 The present invention provides a flowchart of a display method according to an embodiment of the present invention.

[0044] Figure 11 A module diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the said features. In addition, it should be noted that the drawings only provide structures that are closely related to the present invention, and some details that are not closely related to the invention are omitted. The purpose is to simplify the drawings and make the invention clear at a glance, rather than to indicate that the actual device is the same as the attached structure. Figure 1 The same is true, not set to the actual device limit.

[0047] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase at various times in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] Embodiments of the present invention provide a display method, which includes but is not limited to the following embodiments and combinations of the following embodiments.

[0049] In one embodiment, if Figure 1 As shown, the display method includes but is not limited to the following steps and combinations of the following steps.

[0050] S1, obtaining a plurality of first frames of image information corresponding to a plurality of consecutive first frames.

[0051] The display device used in the display method of this embodiment may include, but is not limited to, at least one of a liquid crystal display device, an organic self-luminous display device, and an inorganic self-luminous display device. The display device may include a microcontroller, a display panel, and a driver electrically connected therebetween, with the microcontroller being configured to store multiple frames of continuous image information of the display device. Each frame of image information may include the grayscale value of each sub-pixel in the display device for that frame. In other words, the display status of multiple sub-pixels in each frame may be controlled based on the image information for each frame, thereby presenting a display image for that frame.

[0052] In combination with the above discussion, it can be seen that the execution entity of step S1 can be the above-mentioned driver, that is, the driver can obtain multiple first-frame image information corresponding to multiple consecutive first-frame images from the front-end microcontroller. Each first-frame image information includes the grayscale value of each sub-pixel in the first frame, so the multiple first-frame image information can control the display device to display multiple consecutive first-frame images.

[0053] Among them, this embodiment does not limit the number of frames in all frames of the "continuous multiple first frames". It can be the first frame after the display device is turned on and several frames thereafter, or it can be multiple frames consecutively after several frames after the display device is turned on.

[0054] S2, dividing the display area into a plurality of regions according to the plurality of first frames of image information, wherein the changing frequencies of the image information in the plurality of first frames are different in different regions.

[0055] It can be understood that since multiple first-frame picture information can include multiple grayscale values ​​of each sub-pixel in multiple first frames, the change frequency of the grayscale value of each sub-pixel in multiple first frames can be determined, and then multiple sub-pixels with similar change frequencies can be divided into the same area, so the display area can be divided into multiple areas according to the change frequency of the picture information.

[0056] Since the grayscale value of each sub-pixel varies at an uncertain frequency over multiple first frames, the shape and size of each divided region are not fixed. In this embodiment, the region may be regular or irregular, such as a rectangle, a circle, a polygon, or other shapes.

[0057] In some embodiments, as Figure 2 As shown, step S2 may include but is not limited to the following steps and combinations of the following steps.

[0058] S21: Acquire a plurality of first display information corresponding to a plurality of display units in each of the first frame image information.

[0059] The display area of ​​the display device may include multiple display units, each of which may include at least one pixel unit, and each pixel unit may include multiple sub-pixels of different colors. That is, a pixel unit is the smallest unit for achieving color luminescence, and the display unit herein may include one or more smallest units for achieving color luminescence. Therefore, each display information includes the grayscale values ​​of multiple sub-pixels in the display unit in the corresponding first frame.

[0060] S22, dividing the multiple display units into multiple areas according to the change frequency of the multiple first display information of each of the multiple display units in the multiple first frame images, and the change frequency of the first display information of the display units in different areas is within different ranges.

[0061] In this embodiment, the display unit is used as the minimum unit for determining the grayscale change frequency of the display area within multiple first frames. For example, the grayscale value change frequency of each sub-pixel in the display unit within multiple first frames can be calculated. By comprehensively considering the grayscale value change frequency of each of the multiple sub-pixels within the multiple first frames (e.g., the corresponding maximum value, average value, mode, or other value), the change frequency of the multiple first display information of the display unit in the multiple first frames can be determined.

[0062] Furthermore, multiple display units with similar frequencies of change in first display information can be grouped into the same region, so the multiple display units in the display area can be divided into multiple regions. That is, the frequencies of change in the first display information of the multiple display units in each region can be within a corresponding range, and the frequencies of change in the first display information of the multiple display units in different regions can be within different ranges. Furthermore, the frequency of change in the screen information of each region can be determined based on the frequencies of change in the first display information of the multiple display units within it (e.g., the corresponding average, median, mode, or other values).

[0063] like Figure 1 As shown, following the above step S2, the above display method may further include the following steps:

[0064] S3: Determine a corresponding refresh rate according to a frequency of change of the image information of each region within the plurality of first frames.

[0065] Specifically, if the frequency of change of the picture information of a certain area in multiple first frames is faster, it means that the update frequency of the picture information of the area (which can be called "frame rate") is higher, then the corresponding refresh rate can be set higher so that the display picture of the area can be refreshed at a faster speed to reduce the risk of losing its corresponding picture information.

[0066] On the contrary, if the frequency of change of the picture information of a certain area in multiple first frames is slower, it means that the update frequency of the picture information of the area (which can be called "frame rate") is lower, and the corresponding refresh rate can be set lower so that the display picture of the area can be refreshed at a slower speed. For example, when the picture information of at least two consecutive first frames is the same, the display picture of the area does not need to be refreshed in "at least two consecutive first frames" to reduce power consumption.

[0067] S4, driving a plurality of sub-pixels in each of the regions according to the refresh rate of the region to perform image display.

[0068] Specifically, after determining the refresh rate of each area, the gate driver in the driver generates multiple gate signals corresponding to multiple rows of sub-pixels, and the source driver in the driver generates multiple data signals corresponding to multiple columns of sub-pixels. By controlling the driver to generate the above-mentioned gate signals and the above-mentioned data signals corresponding to multiple refresh rates of multiple areas, each area can be controlled to achieve switching of the display screen at the corresponding refresh rate to display multiple frames of the screen.

[0069] It can be understood that in this embodiment, the display area is divided into different areas according to the change rate (frame rate) of the grayscale value in the multiple first frame images corresponding to the multiple first frame images of the continuous first frame images. Each area uses a refresh rate that matches the change frequency of the corresponding picture information to refresh the display image, that is, according to the distribution of the frame rate in the display area, different refresh rates are used to refresh the display image for display areas with different frame rates, thereby improving the flexibility of the zoning and frequency division of the display device, so that the refresh rate of different areas can match the change frequency of its picture information, so as to take into account the high smoothness of the display image and the low power consumption of the display device.

[0070] In some embodiments, as Figure 3 As shown, step S2 may include but is not limited to the following steps and combinations of the following steps.

[0071] S51 , determining a corresponding buffering frequency according to a changing frequency of the image information in each area.

[0072] The buffering frequency here is positively correlated with the aforementioned “frame rate”, and each area has a corresponding buffering frequency, rather than the entire display area corresponding to the same buffering frequency.

[0073] S52: Refresh the image information in the corresponding buffer according to the buffering frequency of each area.

[0074] Specifically, each area can be provided with a corresponding logic block, and each logic block is independently allocated with a double buffer, that is, the buffer of this embodiment can include a foreground buffer and a corresponding background buffer. Among them, the background buffer can store the first frame image information of the latter of the two adjacent first frames, and the foreground buffer can store the first frame image information of the former of the two adjacent first frames. After the foreground buffer transmits the "first frame image information of the former of the two adjacent first frames" stored therein to the corresponding source driver, the background buffer transmits the "first frame image information of the latter of the two adjacent first frames" stored therein to the foreground buffer, and obtains the first frame image information of the other first frame located after the two adjacent first frames from the front-end microcontroller.

[0075] Among them, the buffering frequency can be understood as at least one of the speed at which each first frame of image information is transmitted between the microcontroller and the buffer, and the speed at which it is transmitted between the microcontroller and the source driver. Furthermore, it can also be understood as the speed at which each first frame of image information is transmitted between the foreground buffer and the corresponding background buffer.

[0076] As can be seen from the above discussion, in this embodiment, since the “frame rates” of different regions are different, buffer frequencies that match them are also set respectively.

[0077] If the "frame rate" of a certain area is higher, the corresponding buffer frequency can be set higher so that the multiple first frames of image information in the area can be transmitted at a faster speed, so that the source driver can receive the multiple first frames of image information faster, and generate multiple data signals corresponding to the multiple first frames faster, so that the display screen of the area can be refreshed at a faster speed to reduce the risk of losing its corresponding screen information.

[0078] On the contrary, if the "frame rate" of a certain area is low, the corresponding buffer frequency can be set lower so that the multiple first frames of image information in the area can be transmitted at a slower speed, so that the source driver can receive the multiple first frames of image information more slowly, and generate multiple data signals corresponding to the multiple first frames more slowly. For example, when the picture information of the later first frame is the same as the picture information of the previous first frame, the microcontroller does not need to transmit the unupdated picture information to the buffer to reduce power consumption.

[0079] In some embodiments, based on the above steps S51 to S52, the above step S4 may include but is not limited to the following steps:

[0080] S41 , driving the region to display images in a plurality of consecutive first frames according to the refresh rate of each region and a plurality of the image information corresponding to the plurality of first frames.

[0081] In combination with the above discussion, it can be seen that the gate driver in the driver can generate multiple gate signals corresponding to multiple rows of sub-pixels according to multiple refresh rates of multiple regions, and the source driver in the driver can generate multiple data signals corresponding to multiple columns of sub-pixels according to multiple refresh rates of multiple regions and multiple picture information corresponding to multiple first frames of each region.

[0082] Among them, the above-mentioned gate signal can control the refresh rate of multiple rows of sub-pixels in the column direction; further, for multiple sub-pixels located in the same row, the refresh rate of sub-pixels in different columns can be controlled by switching multiple data voltages corresponding to the row in multiple data signals in consecutive multiple frames.

[0083] Specifically, for regions with higher refresh rate requirements, the cycles of multiple gate signals for the multiple rows of sub-pixels corresponding to the region can be controlled to be shorter based on the refresh rate, allowing the corresponding multiple rows of sub-pixels to be driven at a higher frequency to erase and reopen the display. Furthermore, the update frequency of the data voltages corresponding to the multiple columns of data signals for the multiple rows of sub-pixels corresponding to the region can be controlled to be higher based on the refresh rate. In other words, by dually setting gate and data signals, it is possible to achieve image display in each region within multiple first frames.

[0084] In this embodiment, the frequency of the clock signal acting on the gate driver is not limited. For example, the frequency of the clock signal corresponding to the region with a higher refresh rate may be 120 Hz, and the frequency of the clock signal corresponding to the region with a lower refresh rate may be 30 Hz.

[0085] In some embodiments, as Figure 4 As shown, step S3 may include but is not limited to the following steps and combinations of the following steps.

[0086] S31, determining a corresponding priority according to a frequency of change of the image information of each area, wherein the priority is positively correlated with the frequency of change of the image information;

[0087] S32: Determine a refresh rate of the region corresponding to the plurality of first frames according to the priority, wherein the priority and the refresh rate of the region corresponding to the plurality of first frames are positively correlated.

[0088] Combined with the above discussion, it can be seen that the corresponding refresh rate and corresponding priority of each area can be determined according to the frequency of change of its picture information in multiple first frames (which can be called "frame rate"). It can be considered that the higher the frequency of change of the picture information in the area in multiple first frames, the higher the corresponding refresh rate and corresponding priority, and vice versa.

[0089] Among them, based on the above steps S31 to S32, as Figure 5 As shown, the above step S4 may include but is not limited to the following steps and combinations thereof:

[0090] S41, obtaining a plurality of second frames of image information corresponding to a plurality of consecutive second frames located after the plurality of first frames;

[0091] S42, determining a frequency of change of the image information of the region within the plurality of second frames according to the plurality of second frames of image information;

[0092] S43, determining whether to adjust the priority of the region according to a frequency of change of image information of the region in a plurality of second frames;

[0093] S44, adjusting the refresh rate of the region corresponding to the plurality of first frames according to the adjusted priority;

[0094] S45 , driving a plurality of sub-pixels in each area to display an image according to the adjusted refresh rate of each area.

[0095] In combination with the above discussion on steps S1 to S4 and steps S31 to S32, it can be seen that different priorities can be defined for the multiple regions according to the refresh rates of the multiple regions corresponding to the multiple first frames.

[0096] However, since the changes in image information in different frames are different, the priority of each area previously determined based on the multiple first-frame image information corresponding to the multiple consecutive first-frame images may no longer match the change frequency of the image information of the subsequent multiple regions in the multiple frames following the multiple first-frame images.

[0097] Therefore, this embodiment also determines the frequency of change of the picture information of each area in the multiple second frames (located after the multiple first frames) based on the multiple second frame image information, thereby adjusting the previous priority, and adjusts the change rate of each area again according to the frequency of change of the picture information of each area in the multiple second frames (specifically as described in the above step S44), and then adjusts the refresh rate with the new priority to drive the multiple sub-pixels in the area to display the picture (that is, the above step S44, the driving principle is the same as the above step S4), so as to adapt to the required smoothness and low power consumption of the multiple second frames that will be displayed later.

[0098] In some embodiments, as Figure 6 As shown, step S43 may include but is not limited to the following steps and combinations thereof:

[0099] S431, when the frequency of change of the picture information of the region in the plurality of second frames is less than a first preset change rate and the priority corresponding to the region is higher than the first preset priority, lowering the priority of the region;

[0100] S432, when the frequency of change of the picture information of the area in multiple second-frame pictures is greater than the second preset change rate and the priority corresponding to the area is lower than the second preset priority, increase the priority of the area, the second preset change rate is greater than the first preset change rate, and the second preset priority is lower than the first preset priority.

[0101] Among them, this embodiment sets a smaller first preset change rate, a larger second preset change rate, a higher first preset priority, and a lower second preset priority, and compares the change frequency of the picture information of each area in multiple second frames with the relationship between the first preset change rate and the second preset change rate, and compares the previous priority of each area with the relationship between the first preset priority and the second preset priority to determine whether to adjust the priority of the area.

[0102] Specifically, if the frequency of change of the picture information of a certain area in multiple second frames is less than the first preset change rate, and the previous priority of the area is higher than the first preset priority, it means that the frame rate of the area in multiple second frames is already small enough, resulting in the higher refresh rate corresponding to its previous higher priority no longer matching the lower refresh rate required for the multiple second frames, so the priority of the area needs to be lowered.

[0103] On the contrary, if the frequency of change of the picture information of a certain area in multiple second frames is greater than the second preset change rate, and the previous priority of the area is lower than the second preset priority, it means that the frame rate of the area in multiple second frames is already large enough, resulting in the lower refresh rate corresponding to its previous lower priority no longer matching the higher refresh rate required for multiple second frames, so the priority of the area needs to be increased.

[0104] The frequency of change of the image information within the plurality of second frames can be understood to be determined by at least one of the number of frames in which the image information in the plurality of second frames changes continuously, the number of sub-pixels or pixel units whose grayscale values ​​change, and the magnitude of the grayscale change. For example, if the rate of change of the image information of a certain area within the plurality of second frames is less than 5% for three consecutive frames, it is considered to be less than the first predetermined rate of change.

[0105] The specific degree to which the priority of the above-mentioned area is lowered or increased can be determined based on the specific difference between the change frequency of the picture information in the plurality of second frames and the first preset change rate and the second preset change rate.

[0106] In some embodiments, as Figure 7 As shown, step S32 may include but is not limited to the following steps and combinations thereof:

[0107] S33, for the region corresponding to the priority greater than or equal to the priority threshold, when the image information of the region in the first frame changes, adjusting the refresh rate of the region to control the display image of the region to be updated to the display image corresponding to the changed image information;

[0108] S34, for the area corresponding to the priority less than the priority threshold, after a preset time interval after the first frame, determine whether the picture information of the area in the first frame has changed; when the picture information of the area in the first frame has changed, adjust the refresh rate of the area to control the display picture of the area to update to the display picture corresponding to the changed picture information.

[0109] Among them, the priority threshold can be between the above-mentioned first preset priority and the above-mentioned second preset priority. The priority threshold can be used to determine whether the previous priority of each area is a larger or smaller priority, thereby setting the update frequency of the display screen of the area.

[0110] As discussed above, the driver generates the gate signals and the data signals according to the refresh rates of the multiple regions, so that each region switches the display image at the corresponding refresh rate to display multiple frames.

[0111] Furthermore, this embodiment takes into account that, based on the refresh rate determined in steps S31 to S32, there may be a situation where, when the image information in the first frame changes, multiple sub-pixels fail to perform corresponding display image refresh in a timely manner. Therefore, this embodiment further adjusts the refresh rate as follows:

[0112] For areas with higher priority previously, changes in picture information in multiple first frames can be monitored in real time. Once the picture information of a first frame changes compared with the previous frame, the refresh rate of the area can be adjusted to achieve timely erasing of the display screens of multiple rows of sub-pixels corresponding to the area and reopening of the corresponding multiple rows of sub-pixels through the gate driver, and refreshing of the data voltages of the sub-pixels in the area through the source driver, instead of waiting until the moment defined by the refresh rate originally determined by steps S31 to S32 is arrived to perform the above operations, thereby improving the timeliness of display screen switching for high-priority areas.

[0113] At the same time, this embodiment is for areas with lower priority previously. Since the frequency of changes in the picture information in multiple first frames is low, there is no need to monitor the changes in the picture information in multiple first frames in real time. After a preset time interval (which may be less than the time interval corresponding to its corresponding refresh rate) after each first frame, it is determined whether the picture information in the area has changed. When its picture information changes, the refresh rate of the area can be adjusted to achieve refresh of the data voltage of the sub-pixels in the area through the gate driver and the source driver. Otherwise, it is determined whether the picture information in the area has changed after a preset time interval after the next first frame.

[0114] The above steps S33 to S34 may also be understood to be included in the above step S4.

[0115] In some embodiments, as Figure 8 As shown, step S43 may include but is not limited to the following steps:

[0116] S46. Determine the value of the corresponding voltage signal according to the priority of the area, the voltage signal includes a first voltage signal and a second voltage signal, the first voltage signal and the second voltage signal are used to generate a gate signal, and at least one of the first voltage signal and the second voltage signal corresponding to the areas of different priorities is different.

[0117] As discussed above, after adjusting or maintaining the original priority of a region based on the information of multiple second frames, the corresponding refresh rate can also be determined. Similarly, the priority and the refresh rate of the region corresponding to multiple first frames or multiple second frames are positively correlated.

[0118] Among them, the higher the priority of the area, the higher the corresponding refresh rate. Under the same other conditions, the sub-pixels in the area are turned on for a shorter time in the corresponding frame, resulting in a lower charging rate of the sub-pixels.

[0119] Based on this, this embodiment determines the value of the corresponding voltage signal based on the priority of the region. The voltage signal is used to control at least the charging rate of the display unit within the region. That is, by differentially setting the voltage signals of different priorities, the difference in the charging rate of the display units within regions of different priorities can be reduced. Among them, the first voltage signal and the second voltage signal can be used to control the amplitude of the high potential and the low potential of the above-mentioned gate signal, respectively, thereby controlling the size of the overlapping area of ​​the gate signal and the corresponding data voltage of the sub-pixel in the corresponding region, and then determining the corresponding charging rate.

[0120] In some embodiments, as Figure 9 As shown, step S45 may include but is not limited to the following steps:

[0121] S451, driving a plurality of sub-pixels in the area to display images according to the refresh rate of each area, and controlling the buffer of each area to refresh the corresponding image information between two adjacent frames in at least part of the frames for image display in the display area.

[0122] As can be seen from the above discussion, after the priorities of the regions are adjusted or the original priorities are maintained according to the plurality of second frame image information, the corresponding refresh rates can also be determined.

[0123] Similarly to the discussion above about step S4, this embodiment also drives multiple sub-pixels in each area to display the picture according to the refresh rate of the area. On this basis, the picture information in the buffer of each area in this embodiment is also refreshed between two adjacent frames in at least part of the multiple frames for picture display in the entire display area (i.e., the vertical blanking period), avoiding being performed during the display of a certain frame, thereby avoiding the new picture information from being transmitted to the source driver and affecting the display of the current frame.

[0124] The embodiment of the present invention also provides the following specific display method, combined with Figure 10 The application scenario shown may include, but is not limited to, the following steps and combinations thereof.

[0125] S01, display system initialization;

[0126] S02, dividing the display area into a high refresh rate area and a low refresh rate area through dynamic area division;

[0127] For details, please refer to the discussion of steps S1 to S2 above. For example, each of the multiple areas mentioned above can be set as a high refresh rate area or a low refresh rate area based on the relationship between its priority and the priority threshold. For example, the priority of the high refresh rate area is greater than or equal to the priority threshold, and the priority of the low refresh rate area is less than the priority threshold. The high refresh rate area is called a dynamic area compared to the lower refresh rate area, and the low refresh rate area is called a static area compared to the higher refresh rate area.

[0128] S03, double-buffered video memory;

[0129] For details, please refer to the discussion of steps S51 to S52 above;

[0130] S04, setting corresponding clock signals for the high refresh rate area and the low refresh rate area respectively through timing control;

[0131] The frequency of the clock signal corresponding to the high refresh rate area may be 120 Hz, and the frequency of the clock signal corresponding to the low refresh rate area may be 30 Hz;

[0132] S05, motion detection;

[0133] For details, please refer to the discussion of steps S41 to S43 above;

[0134] S06, adjusting the refresh rate of the high refresh rate area and the refresh rate of the low refresh rate area by event triggering and polling respectively through refresh decision;

[0135] For details, please refer to the discussion of steps S33 to S34 above;

[0136] S07, dynamic voltage regulation;

[0137] For details, please refer to the discussion of step S44 above;

[0138] S08, tear resistance optimization;

[0139] For details, please refer to the discussion of steps S45 to S46 above;

[0140] S09, display output;

[0141] For details, please refer to the discussion of step S4 above. That is, after the refresh rate is determined in the above manner, a plurality of gate signals can be generated by the gate driver to drive the high refresh rate area and the low refresh rate area to display the picture.

[0142] The embodiment of the present invention also provides a display device, such as Figure 11As shown, the display device 100 includes: a microcontroller 10 for storing continuous multi-frame image information of the display device; a display panel 20; and a driving circuit 30 electrically connected between the microcontroller 10 and the display panel 20 for:

[0143] Acquire a plurality of first frames of image information corresponding to a plurality of consecutive first frames from the microcontroller;

[0144] determining a plurality of regions in a display area of ​​the display panel according to the plurality of first frames of image information, wherein different regions have different frequencies of change of picture information within the plurality of first frames;

[0145] Determining a corresponding refresh rate according to a frequency of change of the image information of each region within the plurality of first frames;

[0146] The regions are driven to display images according to the refresh rate of each region.

[0147] The steps corresponding to the functions of the microcontroller 10 and the driving circuit 30 may refer to the relevant discussion of the display method above.

[0148] The driving circuit 30 may include but is not limited to a timing controller, the aforementioned gate driver and the aforementioned source driver. The display panel 20 may include the aforementioned multiple sub-pixels. The timing controller may be used to perform the aforementioned steps S1 to S4.

[0149] The display method and display device provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display method, characterized in that: include: Acquire multiple first frames of image information corresponding to multiple consecutive first frames; Dividing the display area into a plurality of regions according to the plurality of first frames of image information, wherein different regions have different frequencies of change of the image information within the plurality of first frames; Determining a corresponding refresh rate according to a frequency of change of the image information of each region within the plurality of first frames; A plurality of sub-pixels in each of the regions are driven according to the refresh rate of the region to perform image display.

2. The display method according to claim 1, wherein: The step of dividing the display area into a plurality of areas according to the plurality of first frames of image information comprises: Acquire a plurality of first display information corresponding to a plurality of display units in each of the first frame image information; According to the change frequency of the multiple first display information of each of the multiple display units in the multiple first frame images, the multiple display units are divided into multiple areas, and the change frequency of the first display information of the display units in different areas is within different ranges.

3. The display method according to claim 1, wherein: After the step of dividing the display area into a plurality of areas according to the plurality of first frames of image information, the method further includes: determining a corresponding buffering frequency according to a frequency of change of the image information of each area; The image information in the corresponding buffer is refreshed according to the buffering frequency of each area.

4. The display method according to claim 3, wherein: The step of driving the plurality of sub-pixels in each area to display a picture according to the refresh rate of each area includes: According to the refresh rate of each of the regions and the plurality of picture information corresponding to the plurality of first frames, the region is driven to perform picture display in a plurality of consecutive first frames.

5. The display method according to any one of claims 1 to 4, characterized in that: The step of determining the corresponding refresh rate according to the frequency of change of the image information of each region within the plurality of first frames includes: determining a corresponding priority according to a frequency of change of the image information of each area, wherein the priority is positively correlated with the frequency of change of the image information; The refresh rate of the region corresponding to the plurality of first frames is determined according to the priority, and the priority and the refresh rate of the region corresponding to the plurality of first frames are positively correlated.

6. The display method according to claim 5, wherein: After the step of driving the plurality of sub-pixels in each area to display a picture according to the refresh rate of each area, the method further includes: Acquire a plurality of second frames of image information corresponding to a plurality of consecutive second frames located after the plurality of first frames; determining a frequency of change of the picture information of the region within the plurality of second frames according to the plurality of second frames of image information; determining whether to adjust the priority of the region according to a frequency of change of picture information of the region in a plurality of second frames; adjusting the refresh rate of the region corresponding to the plurality of first frames according to the adjusted priority; A plurality of sub-pixels in each area are driven according to the adjusted refresh rate of the area to perform image display.

7. The display method according to claim 6, wherein: The step of determining whether to adjust the priority of the region according to the frequency of change of the image information of the region in the plurality of second frames includes: When the frequency of change of the picture information of the region in the plurality of second frames is less than a first preset change rate and the priority corresponding to the region is higher than the first preset priority, lowering the priority of the region; When the frequency of change of the picture information of the area in multiple second-frame pictures is greater than the second preset change rate and the priority corresponding to the area is lower than the second preset priority, the priority of the area is increased, the second preset change rate is greater than the first preset change rate, and the second preset priority is lower than the first preset priority.

8. The display method according to claim 6, wherein: The step of driving the plurality of sub-pixels in each area to display a picture according to the refresh rate of each area includes: For the area corresponding to the priority greater than or equal to the priority threshold, when the picture information of the area in the first frame changes, adjusting the refresh rate of the area to control the display picture of the area to be updated to the display picture corresponding to the changed picture information; For the area corresponding to the priority less than the priority threshold, after a preset period of time in the first frame, it is determined whether the picture information of the area in the first frame has changed; when the picture information of the area in the first frame has changed, the refresh rate of the area is adjusted to control the display picture of the area to be updated to the display picture corresponding to the changed picture information.

9. The display method according to claim 6, wherein: After the step of determining whether to adjust the priority of the region according to the frequency of changes in the image information of the region in the plurality of second frames, the method further includes: The value of the corresponding voltage signal is determined according to the priority of the area, and the voltage signal includes a first voltage signal and a second voltage signal. The first voltage signal and the second voltage signal are used to generate a gate signal. At least one of the first voltage signal and the second voltage signal corresponding to the areas with different priorities is different.

10. The display method according to claim 6, wherein: The step of driving the plurality of sub-pixels in each area to display a picture according to the adjusted refresh rate of each area includes: According to the refresh rate of each area, multiple sub-pixels in the area are driven to display the picture, and the buffer of each area is controlled to refresh the corresponding picture information between two adjacent frames in at least part of the frames displayed in the display area.

11. A display device, characterized in that: include: A microcontroller, configured to store continuous multiple frames of picture information of the display device; Display panel; A driving circuit is electrically connected between the microcontroller and the display panel, and is used to obtain multiple first-frame image information corresponding to multiple consecutive first-frame images from the microcontroller, and is used to divide the display area into multiple areas according to the multiple first-frame image information, wherein different areas have different frequencies of change of image information in the multiple first-frame images, and is used to determine the corresponding refresh rate according to the frequency of change of the image information in each area within the multiple first-frame images, and is used to drive multiple sub-pixels in the area to display the image according to the refresh rate of each area.

Images