WO2023115329A1 - 亮度确定方法、装置、显示面板、电子设备和存储介质 - Google Patents

亮度确定方法、装置、显示面板、电子设备和存储介质 Download PDF

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Publication number
WO2023115329A1
WO2023115329A1 PCT/CN2021/140069 CN2021140069W WO2023115329A1 WO 2023115329 A1 WO2023115329 A1 WO 2023115329A1 CN 2021140069 W CN2021140069 W CN 2021140069W WO 2023115329 A1 WO2023115329 A1 WO 2023115329A1
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Prior art keywords
value
brightness
display
average image
pixels
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PCT/CN2021/140069
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English (en)
French (fr)
Inventor
何敏
许静波
孟松
尹朋飞
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京东方科技集团股份有限公司
合肥京东方卓印科技有限公司
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Application filed by 京东方科技集团股份有限公司, 合肥京东方卓印科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2021/140069 priority Critical patent/WO2023115329A1/zh
Priority to CN202180004088.2A priority patent/CN116635927A/zh
Publication of WO2023115329A1 publication Critical patent/WO2023115329A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels

Definitions

  • Embodiments of the present disclosure relate to a method for determining brightness, a device for determining brightness, a display panel, electronic equipment, and a computer-readable storage medium.
  • display panels have been deeply involved in people's work and life.
  • display panels can be applied in televisions, computers, smart home devices, and the like.
  • Commonly used display panels include liquid crystal display panels and OLED (Organic Light-Emitting Diode) display panels.
  • OLED display panels have received more and more attention due to their advantages of high contrast, flexibility, and fast response.
  • At least one embodiment of the present disclosure provides a brightness determination method for a display panel, the display panel includes a plurality of pixels, the method includes: based on an image to be displayed, determining the first display brightness respectively corresponding to the plurality of pixels ; Based on the first display brightness corresponding to the plurality of pixels, determine a reference average image level corresponding to the image to be displayed; and based on the reference average image level and the relationship between the average image level and the highest display brightness information to determine the target maximum display brightness corresponding to the display panel during the display of the image to be displayed, wherein the value range corresponding to the average image level includes at least two segment intervals, and the relationship information is included in the In the at least two segmental intervals, the maximum display brightness varies with the average image level; in different segmental intervals, the maximum display brightness varies with the average image level The rates of change are different; in at least one of said subsections, said maximum display brightness decreases as said average picture level increases.
  • the any two comparison segment intervals include the first comparison segment interval and the second comparison segment interval
  • the maximum value of the average image level in the first comparison segment interval is less than or equal to the minimum value of the average image level in the second comparison segment interval.
  • the change speed of the highest display brightness in the first comparison segment interval is less than or equal to the change speed of the highest display brightness in the second comparison segment interval.
  • the value range corresponding to the average image level includes a minimum value, an intermediate value, and a maximum value
  • the intermediate value is the maximum value and the minimum value average of.
  • the number of segment intervals within the range from the minimum value to the intermediate value is greater than the number of segment intervals within the range from the intermediate value to the maximum value.
  • the at least two segment intervals include a first segment interval.
  • the highest display brightness remains unchanged as the average image level changes, and the highest display brightness is a predetermined brightness value.
  • the value of the average image level in the first segment interval is smaller than the value of the at least two segment intervals except the first segment interval.
  • the value of the average picture level in the rest of the segment intervals is smaller than the value of the at least two segment intervals except the first segment interval.
  • the at least two segment intervals further include a second segment interval, a third segment interval, and a fourth segment interval, and the average image level
  • the values are continuous and increase sequentially from the first segment interval to the fourth segment interval.
  • the value range corresponding to the average image level includes a minimum value, a first value, a second value, a third value and a maximum value, wherein the first value A value, the second value and the third value are located between the minimum value and the maximum value and increase in sequence.
  • the two interval endpoints of the first segmentation interval are the minimum value and the first numerical value respectively
  • the two interval endpoints of the second segmentation interval are the first numerical value and the second numerical value respectively
  • the two interval endpoints of the third segment interval are the second value and the third value respectively
  • the two interval endpoints of the fourth segment interval are the third value and the maximum value.
  • determining a reference average image level corresponding to the image to be displayed based on the first display brightness of the plurality of pixels includes: according to the plurality of pixels The reference average image level corresponding to the image to be displayed is determined for the corresponding first display brightness respectively.
  • determining a reference average image level corresponding to the image to be displayed includes: determining the brightness of the plurality of pixels at least one target pixel; determining a reference average image level corresponding to the image to be displayed according to the first display brightness corresponding to the at least one target pixel.
  • determining at least one target pixel among the plurality of pixels includes: selecting pixels whose first display brightness is greater than a brightness threshold from the plurality of pixels, as The at least one target pixel.
  • determining at least one target pixel among the plurality of pixels includes: determining display colors corresponding to the plurality of pixels based on the image to be displayed; The display colors corresponding to the plurality of pixels are determined at least one target display color, wherein the ratio between the pixels displaying each of the target display colors and the plurality of pixels is greater than a ratio threshold; from the plurality of pixels A pixel corresponding to the target display color is selected as the at least one target pixel.
  • the method for determining brightness further includes: according to the target maximum display brightness, determining a plurality of second display brightnesses respectively corresponding to the plurality of pixels during displaying the image to be displayed; A plurality of second display luminances presents the image to be displayed.
  • At least one embodiment of the present disclosure provides a brightness determination device for a display panel, wherein the display panel includes a plurality of pixels, and the brightness determination device includes a first determination module, a second determination module and a third determination module,
  • the first determination module is configured to determine the first display brightness corresponding to the plurality of pixels respectively based on the image to be displayed;
  • the second determination module is configured to determine the first display brightness corresponding to the plurality of pixels respectively based on the image to be displayed A reference average image level corresponding to the displayed image;
  • the third determination module is configured to determine that the display panel displays the image during displaying the image to be displayed based on the reference average image level and information about the relationship between the average image level and the highest display brightness.
  • the corresponding target maximum display brightness is configured to determine the first display brightness corresponding to the plurality of pixels respectively based on the image to be displayed.
  • the relationship information includes information on the change of the highest display brightness with the numerical value of the average image level in at least two segmental intervals of the average image level; in the different segmental intervals , the change rate of the maximum display brightness is different with the average image level; in at least one of the subsections, the maximum display brightness decreases with the increase of the average image level.
  • At least one embodiment of the present disclosure provides a display panel, including a plurality of pixels, a data driver, a gate driver and a timing controller, the data driver is configured to provide data signals to the plurality of pixels; the gate driver is configured to provide the plurality of pixels with data signals; The plurality of pixels provide gate scanning driving signals; and the timing controller is configured to execute the brightness determination method provided by any embodiment of the present disclosure.
  • At least one embodiment of the present disclosure provides an electronic device, including a processor; a memory configured to store one or more computer program modules; wherein the one or more computer program modules are configured to be executed by the processor , the one or more computer program modules include instructions for implementing the method for determining brightness provided by any embodiment of the present disclosure.
  • At least one embodiment of the present disclosure provides a computer-readable storage medium for storing non-transitory computer-readable instructions.
  • the non-transitory computer-readable instructions are executed by a computer, the invention provided by any embodiment of the present disclosure can be realized. Brightness determination method.
  • FIG. 1 shows a schematic diagram of a display panel provided by at least one embodiment of the present disclosure
  • Fig. 2 shows a flowchart of a brightness determination method provided by at least one embodiment of the present disclosure
  • Fig. 3 shows a schematic diagram of a relationship curve between the highest display brightness and the average image level provided by at least one embodiment of the present disclosure
  • FIG. 4 shows a schematic diagram of the relationship curve between the highest display brightness and the average image level drawn according to the data in Table 1 provided by at least one embodiment of the present disclosure
  • Fig. 5 shows a schematic block diagram of an apparatus for determining brightness provided by at least one embodiment of the present disclosure
  • Fig. 6 shows a schematic block diagram of an electronic device provided by at least one embodiment of the present disclosure
  • Fig. 7 shows a schematic block diagram of another electronic device provided by at least one embodiment of the present disclosure.
  • Fig. 8 shows a schematic diagram of a computer-readable storage medium provided by at least one embodiment of the present disclosure.
  • At least one embodiment of the present disclosure provides a brightness determination method, a brightness determination device, a display panel, an electronic device, and a computer-readable storage medium.
  • the brightness determination method includes: based on the image to be displayed, determining the first display brightness corresponding to a plurality of pixels respectively; based on the first display brightness corresponding to the plurality of pixels, determining a reference average image level corresponding to the image to be displayed; and based on Referring to the average image level and information about the relationship between the average image level and the maximum display brightness, determine the corresponding target maximum display brightness of the display panel during displaying the image to be displayed.
  • the value range corresponding to the average image level includes at least two segmental intervals, and the relationship information is included in at least two segmental intervals, and the highest display brightness varies with the value of the average image level; in different segmental intervals , the rate of change of the maximum display brightness varies with the change of the average image level; in at least one subsection interval, the maximum display brightness decreases as the average image level increases.
  • the highest display brightness decreases with the increase of the average image level in at least part of the subsection intervals, when the overall grayscale of the image to be displayed is relatively high,
  • the overall display brightness of the image to be displayed can be appropriately reduced to reduce power consumption and avoid the problem of excessive power consumption due to excessive brightness of the display screen; when the overall gray scale of the image to be displayed is low, the brightness of the image to be displayed can be improved.
  • the overall display brightness can enhance the performance of details, increase the contrast, and improve the display effect.
  • segmental adjustment of the brightness can be realized, thereby making the brightness adjustment more flexible. For example, it can be divided into several segments according to the sensitivity of the human eye to brightness changes, and the brightness change rate in line with the viewing comfort of the human eye can be set in different segments, which helps to improve the viewing comfort of the human eye and achieve better viewing effect.
  • Fig. 1 shows a schematic diagram of a display panel provided by at least one embodiment of the present disclosure.
  • the display panel may be an OLED display panel, and the display panel includes: a pixel array 110 and a panel driver.
  • the pixel array 110 includes multiple rows and multiple columns of pixels Pxij arranged in an array, and the panel driver is configured to drive the pixel array 110 .
  • the panel driver may include: a data driver 120 , a gate driver 130 and a timing controller 140 .
  • the method for determining brightness in the embodiments of the present disclosure may be executed, for example, by the timing controller 140 .
  • the pixel array 110 may further include: a plurality of scanning signal lines (eg, GL1 to GLm) and a plurality of data signal lines (eg, DL1 to DLn) connected to pixels in multiple rows and columns.
  • a plurality of scanning signal lines eg, GL1 to GLm
  • a plurality of data signal lines eg, DL1 to DLn
  • i, j, m and n are all positive integers.
  • the plurality of scan signal lines GL1 to GLm extend in a first direction (eg, horizontal direction) of the display panel
  • the plurality of data signal lines DL1 to DLn may extend in a second direction (eg, vertical direction) of the display panel. direction) extends upwards.
  • the first direction and the second direction intersect, for example, the first direction is perpendicular to the second direction.
  • the plurality of data signal lines are configured to intersect the plurality of scan signal lines.
  • each pixel Pxij in the pixel array 110 may be electrically connected to a corresponding data signal line and a scan signal line.
  • the scanning driving circuit included in the gate driver 130 may be located on one side of the pixel array 110 (for example, on one side of the pixel array in the first direction, such as the left or right side as shown in FIG. 1 ). , as shown in FIG. 1 , in the first direction, the scanning driving circuit included in the gate driver 130 is located on the left side of the pixel array 110 .
  • this embodiment does not limit it.
  • gate drivers 130 are provided on opposite sides of the pixel array 110 to realize bilateral driving of the pixel array 110 .
  • the pixel Pxij includes a pixel circuit and a light emitting element
  • the pixel circuit may be a 3T1C (T represents a transistor, C represents a capacitor), 4T1C, 5T1C, 5T2C, 6T1C or 7T1C structure, which is not covered in the embodiments of the present disclosure. limit.
  • the light emitting element may be, for example, an organic light emitting diode (OLED) or a quantum dot light emitting diode (QLED), which is not limited in the embodiments of the present disclosure.
  • the gate driver 130 may be formed using an integrated circuit, or may be directly formed on the substrate of the display panel during the process of manufacturing the pixel circuit.
  • this embodiment does not limit it.
  • the timing controller 140 may provide a control signal suitable for the specification of the data driver 120 to the data driver 120 .
  • the data driver 120 may use the control signal received from the timing controller 140 to generate data signals to be provided to the data signal lines DL1 to DLn, and further, the data signal lines DL1 to DLn provide the data signals to a plurality of pixels included in the pixel array. .
  • the timing controller 140 may also supply a clock signal, a scan start signal, etc. suitable for the specifications of the gate driver 130 to the gate driver 130 .
  • the gate driver 130 may generate gate scan driving signals to be supplied to the scan signal lines GL1 to GLm by receiving a clock signal, a scan start signal, etc. from the timing controller 140 .
  • the scan signal lines GL1 to GLm provide gate scan driving signals to a plurality of pixels included in the pixel array.
  • the gate driver 130 may include a scan driving circuit that may sequentially supply a gate scan driving signal having a turn-on level pulse to the scan signal lines GL1 to GLm.
  • the scan driving circuit can be constructed in the form of a shift register, and can generate gates in a manner of sequentially transmitting a scan start signal provided in the form of a conduction level pulse to a next-stage circuit under the control of a scan clock signal. pole scanning drive signal.
  • the pixel circuit of each pixel works under the control of the data signal transmitted through the data signal line and the gate scanning driving signal transmitted through the scanning signal line, so as to drive the light emitting element of the pixel to emit light to realize display and other operations.
  • the display panel may be: a 55-inch 4K OLED display panel, a 49-inch OLED display panel, a 55-inch 8K OLED display panel, etc.
  • Fig. 2 shows a flow chart of a method for determining brightness provided by at least one embodiment of the present disclosure.
  • the method for determining brightness may be applied to the display panel shown in FIG. 1 , and the method for determining brightness may include steps S210-S230.
  • Step S210 Based on the image to be displayed, determine first display luminances respectively corresponding to a plurality of pixels.
  • Step S220 Determine a reference average image level corresponding to the image to be displayed based on the first display luminances respectively corresponding to the plurality of pixels.
  • Step S230 Based on the reference average image level and information about the relationship between the average image level and the maximum display brightness, determine a target maximum display brightness corresponding to the display panel during displaying images to be displayed.
  • the value range corresponding to the average image level includes at least two segment intervals, and the relationship information includes information on the change of the highest display brightness with the value of the average image level in at least two segment intervals; in different segments In the interval, the rate of change of the maximum display brightness with the change of the average picture level is different; in at least one subsection interval, the maximum display brightness decreases with the increase of the average picture level, that is, the value of the maximum display brightness Decreases as the value of the average picture level increases.
  • step S210 the gray scale information of the image to be displayed may be obtained first, and the first display brightness of each pixel corresponding to the image to be displayed may be determined according to the gray scale information.
  • step S210 may be performed in a related art method of determining brightness based on the grayscale, which will not be repeated in this embodiment of the present disclosure.
  • step S220 according to the first display brightness of each pixel, determine the average picture level (APL, Average Picture Level) corresponding to the picture to be displayed, that is, the above-mentioned reference average picture level.
  • the reference average picture level can reflect the overall brightness of the picture to be displayed.
  • a reference average image level corresponding to the image to be displayed may be determined according to the first display brightness of all pixels in the display panel for displaying the image to be displayed.
  • the reference average image level is determined according to the first display brightness of all pixels in the display panel used to display the image to be displayed, so that the reference average image level can accurately reflect the brightness of the image to be displayed, In turn, it helps to improve the accuracy of the target maximum display brightness subsequently determined according to the reference average image level.
  • all the pixels in the display panel used to display the image to be displayed may be all the pixels in the display panel, or some pixels in the display panel, which are specifically determined according to the image to be displayed. In the embodiments of the present disclosure, In the description, it is described that all the pixels in the display panel for displaying the image to be displayed can be all the pixels in the display panel as an example.
  • APL is a reference average image level
  • k1 is a constant (k1 makes the value of APL between 0 and 1)
  • sum_all is the sum of the first display luminances of all pixels in the display panel for displaying the image to be displayed.
  • sum_all sum_R+sum_G+sum_B, where sum_R is used to display the image to be displayed in the display panel
  • sum_R is used to display the image to be displayed in the display panel
  • sum_G is the sum of the first display luminances of all green pixels in the display panel for displaying images to be displayed
  • sum_B is the sum of all blue pixels in the display panel for displaying images to be displayed
  • a constant may be used to normalize the APL to a value between 0 and 1.
  • R stands for red
  • G stands for green
  • B stands for blue Color
  • W stands for white.
  • APL 0.125, corresponding to monochrome (R, G, B, or W), 255 grayscale, 25% window display, for example, red pixels in 25% window are displayed with 255 grayscale and do not display except red
  • APL 0.125.
  • the x% window (x is a value between 0 and 100) in the embodiment of the present disclosure may represent a display area that occupies x% of the full screen display area.
  • the reference average image level may also be determined in the following manner: determine at least one target pixel among the plurality of pixels; The reference average image level corresponding to the image to be displayed.
  • a part of pixels is selected from a plurality of pixels, and this part of pixels is used as a target pixel.
  • a reference average image level is calculated according to the first display brightness of the part of pixels.
  • the result of summing and normalizing the first display luminances of all target pixels may be used as the reference average image level.
  • the average image level is determined according to the first display brightness of some pixels, which can increase the calculation speed and improve the processing efficiency.
  • a target pixel can be selected from a plurality of pixels according to one of the following two methods.
  • pixels whose first display brightness is greater than a brightness threshold may be selected from the plurality of pixels as the at least one target pixel. That is, the first display brightness corresponding to each target pixel is greater than the brightness threshold.
  • the brightness threshold may be the average value of the first display brightness of all pixels in the display panel for displaying the image to be displayed, or may be the average value of the first display brightness of all the pixels in the display panel for displaying the image to be displayed.
  • the number of digits that is, the value in the middle of the data sequence in which the first display brightness of all pixels used to display the image to be displayed in the display panel is arranged in numerical order), or it can be other values determined according to actual needs . That is to say, the pixel with higher brightness can be selected from the plurality of pixels as the target pixel.
  • the display colors corresponding to a plurality of pixels can be determined; based on the display colors corresponding to a plurality of pixels, at least one target display color can be determined, wherein each target display color is displayed
  • the ratio between the pixel and the plurality of pixels is greater than a ratio threshold; and the pixel corresponding to the target display color is selected from the plurality of pixels as at least one target pixel.
  • the ratio threshold may be determined according to actual requirements, and the present disclosure does not limit the specific value of the ratio threshold.
  • the reference average image level may also be determined in other ways, for example, the average value of the first display luminances of all pixels displaying the image to be displayed may be used as the reference average image level.
  • the method for determining the reference average image level by the above formula (1) is taken as an example to explain and illustrate the method for determining brightness in the embodiments of the present disclosure.
  • step S230 may be executed to determine the target maximum display value corresponding to the display panel during displaying the image to be displayed according to the reference average image level and the information about the relationship between the average image level and the maximum display brightness.
  • brightness For example, the value range of the average image level (for example, 0 to 1) may include four consecutive segment intervals: the first segment interval, the second segment interval, the third segment interval and the fourth segment interval interval. In the first subsection, the second subsection, the third subsection and the fourth subsection, the average image level and the highest display brightness have different relational expressions.
  • the maximum display brightness decreases as the average picture level increases.
  • the maximum display brightness decreases as the average picture level increases, but in different segment intervals
  • the rate at which the maximum display brightness decreases varies.
  • the maximum display brightness decreases with the increase of the average image level, but in different subsections
  • the rate at which the maximum display brightness falls off varies from one to the other.
  • segment intervals whose average image level values are higher than a certain threshold can be used as the partial segment intervals, that is, if one or more segment intervals contain the minimum value of the average image level If it is higher than or equal to a certain threshold, then in the one or more subsections, the maximum display brightness decreases with the increase of the average image level.
  • the subsection where the reference average image level is located can be determined first, and then the reference average image level can be substituted into the relational formula of the corresponding subsection to calculate the corresponding highest display brightness, and the calculated The obtained highest display brightness is used as the target highest display brightness corresponding to the image to be displayed.
  • multiple second display brightnesses respectively corresponding to multiple pixels during displaying the image to be displayed are determined.
  • the target maximum display brightness is the brightness corresponding to the pixel with the maximum brightness in the image to be displayed, and the brightness of other pixels can be adjusted accordingly according to the maximum display brightness.
  • the pixel with the highest display brightness is the pixel PxA
  • the first display brightness of the pixel PxA is determined to be L A according to step S210
  • the highest display brightness corresponding to the image to be displayed is determined to be L A ' according to step S230, that is The first display brightness corresponding to the pixel PxA is adjusted so that the adjusted brightness of the pixel PxA (that is, the second display brightness corresponding to the pixel PxA) is L A '
  • the second display brightness of any other pixel Pxij can be according to The following formula (2) determines:
  • L ij is the first display brightness of the pixel Pxij
  • L ij ′ is the second display brightness of the pixel Pxij
  • the image to be displayed is presented based on the second display brightness of each pixel.
  • the timing controller 140 may generate a control signal based on the second display brightness of each pixel and provide the control signal to the data driver 120 .
  • the data driver 120 may generate a data signal using a control signal received from the timing controller 140, and further provide the data signal to each pixel through the data signal lines DL1 to DLn.
  • the timing controller 140 may also provide a clock signal, a scan start signal, etc. suitable for the specifications of the gate driver 130 to the gate driver 130 .
  • the gate driver 130 may generate scan signals to be supplied to the scan signal lines GL1 to GLm by receiving a clock signal, a scan start signal, and the like from the timing controller 140 .
  • the gate driver 130 may turn on a row of pixels in the pixel array each time, and the data driver 120 writes a corresponding data signal into the turned-on row of pixels, so that the row of pixels presents a corresponding brightness. Conducting row-by-row conduction and writing in this manner enables the display panel to present an image to be displayed according to the second display brightness corresponding to each pixel.
  • the highest display brightness decreases with the increase of the average image level in at least part of the subsection intervals, when the overall grayscale of the image to be displayed is relatively high,
  • the overall display brightness of the image to be displayed can be appropriately reduced to reduce power consumption and avoid the problem of excessive power consumption due to excessive brightness of the display screen; when the overall gray scale of the image to be displayed is low, the brightness of the image to be displayed can be improved.
  • the overall display brightness can enhance the performance of details, increase the contrast, and improve the display effect.
  • segmental adjustment of the brightness can be realized, thereby making the brightness adjustment more flexible. For example, it can be divided into several segments according to the sensitivity of the human eye to brightness changes, and the brightness change rate in line with the viewing comfort of the human eye can be set in different segments, which helps to improve the viewing comfort of the human eye and achieve better viewing effect.
  • any two comparison segment intervals in at least two segment intervals (two comparison segment intervals represent two segment intervals that can be compared in at least two segment intervals)
  • the interval includes a first comparison segment interval and a second comparison segment interval, and the maximum value of the average image level in the first comparison segment interval is less than or equal to the minimum value of the average image level in the second comparison segment interval.
  • the change speed of the highest display brightness in the first comparison segment interval is less than or equal to the change speed of the highest display brightness in the second comparison segment interval.
  • the first comparison segment interval and the second comparison segment interval can be any two segment intervals in the at least two segment intervals, can be two adjacent segment intervals, or can be two interval intervals. segment interval.
  • any two subsection intervals are named as the first comparison subsection interval and the second comparison subsection interval, and the subsection interval with a smaller APL value among any two subsection intervals is called
  • the segmental interval with a larger APL value is called the second comparative segmental interval.
  • the change speed of the highest display brightness in the first comparison segment interval is smaller than that in the second comparison segment interval, which means that for any two segment intervals, in the segment interval with a relatively small APL value , the change speed of the maximum display luminance is relatively slow; while in the segment interval with a relatively large APL value, the change speed of the maximum display luminance is relatively fast. That is to say, as the APL value increases, the change speed of the maximum display brightness also increases correspondingly. Since the human eye is more sensitive to brightness changes at low gray scales, based on this scheme, the brightness change can be made inconspicuous when the overall gray scale of the image to be displayed is low, which is more suitable for human eyes and improves the viewing experience. .
  • the value range corresponding to the average image level includes a minimum value, a middle value and a maximum value, and the middle value is an average value of the maximum value and the minimum value.
  • the number of band intervals that lie in the range from the minimum value to the median value is greater than the number of bin intervals that lie in the range from the median value to the maximum value.
  • the minimum value is 0, the maximum value is 1, and the middle value is 0.5, and the number of segmentation intervals within the range of 0-0.5 is greater than the number of segmentation intervals within the range of 0.5-1.
  • At least two segmental intervals include a first segmental interval, in the first segmental interval, the highest display brightness remains constant with the change of the average image level, and the highest display brightness is a predetermined brightness value. That is to say, as long as the value of the reference average image level is within the first segment interval, the value corresponding to the maximum display brightness of the reference remains at the predetermined brightness value.
  • the maximum display brightness remains unchanged during at least one subsection of the average picture level.
  • the display brightness of images at a certain gray scale level can be basically consistent, and the picture connection can be made more natural.
  • the maximum value of the average image level in the first segment interval is less than or equal to the minimum value of the average image level in other segment intervals except the first segment interval in at least two segment intervals. That is to say, the first segment interval may be a segment interval in which the value of the average image level is the smallest among all the segment intervals. Based on this method, the highest display brightness can be kept unchanged in the low gray scale range where the human eye is more sensitive to brightness changes, and the viewing comfort of the human eye can be improved.
  • At least two segment intervals further include a second segment interval, a third segment interval, and a fourth segment interval, and the value of the average image level is continuous and sequentially increased from the first segment interval to the fourth segment interval. big.
  • the maximum display brightness decreases as the average image level increases.
  • Fig. 3 shows a schematic diagram of a relationship curve between maximum display brightness and average image level provided by at least one embodiment of the present disclosure.
  • the abscissa represents the normalized average image level
  • the ordinate represents the highest display brightness.
  • the value range corresponding to the average image level includes the minimum value 0, the first value P1, the second value P2, the third value P3 and the maximum value 1, wherein the first value P1, the second The value P2 and the third value P3 are located between the minimum value 0 and the maximum value 1 and increase sequentially;
  • the two interval endpoints of the first segment interval are the minimum value 0 and the first value P1 respectively, and the two interval points of the second segment interval
  • the end points of the first interval are the first value P1 and the second value P2 respectively, the two interval end points of the third segment interval are the second value P2 and the third value P3 respectively, and the two interval end points of the fourth segment interval are respectively the first value P2 and the third value P3.
  • the first value P1 can be a value less than or equal to 0.1
  • the second value P2 can be a value between greater than or equal to 0.1 and less than or equal to 0.2
  • the third value P3 can be It is a value greater than or equal to 0.3 and less than or equal to 0.7.
  • the first value P1 can be set to 0.05
  • the second value P2 can be set to 0.125
  • the third value P3 can be set to 0.5
  • the first segment interval is 0 ⁇ APL ⁇ 0.05
  • the first subsection interval is 0.05 ⁇ APL ⁇ 0.125
  • the third subsection interval is 0.125 ⁇ APL ⁇ 0.5
  • the fourth subsection interval is 0.5 ⁇ APL ⁇ 1.
  • the maximum display brightness of the screen is adjusted according to different APLs. Under the condition that the power consumption does not exceed the standard, Make the screen have higher display brightness.
  • the average image level value when the average image level value is 0.05, calculate the value L of the highest display brightness corresponding to the highest power consumption within the predetermined power consumption range (L is, for example, 600 nit (nit)), and use the highest display brightness L as The predetermined brightness value corresponding to the first subsection interval, for example, in the case where the display panel displays a monochrome, 255 grayscale, 10% window picture, the highest display brightness of the display panel is the above predetermined brightness value, and the predetermined brightness value can be It is 600nit.
  • the value of the average image level is 0.125, calculate the value of the highest display brightness (for example, 400 nit) corresponding to the highest power consumption within the predetermined power consumption range.
  • the value of the average image level When the value of the average image level is 0.5, calculate the value of the highest display brightness (for example, 150 nit) corresponding to the highest power consumption within the predetermined power consumption range. When the value of the average image level is 0.125, calculate the value of the highest display brightness (for example, 75 nit) corresponding to the highest power consumption within the predetermined power consumption range.
  • Lmax is the highest display brightness
  • L is a predetermined brightness value
  • APL is an average picture level
  • a1 and b1 are constants, and can be set according to actual conditions.
  • the maximum display brightness of the full screen is, for example, between 400-600 nit.
  • the average image level corresponding to the image to be displayed is greater than or equal to the average image level corresponding to the picture of monochrome, 255 grayscale, 10% window and less than or equal to the corresponding average image level of the picture of monochrome, 255 grayscale, 25% window
  • the maximum display brightness of the display panel is between 400 and 600 nit, and the specific value of the maximum display brightness can be calculated according to the relationship (3).
  • the relationship information between the highest display brightness and the average image level is expressed as the relationship (4):
  • the maximum display brightness of the full screen is, for example, between 150-400 nit.
  • the average image level corresponding to the image to be displayed is greater than or equal to the average image level corresponding to the picture of monochrome, 255 grayscale, 25% window and less than or equal to the corresponding average image level of the picture of monochrome, 255 grayscale, 100% window.
  • the maximum display brightness of the display panel is between 150 and 400 nit, and the specific value of the maximum display brightness can be calculated according to the relationship (4).
  • a3 and b3 are constants, and can be specifically set according to the actual situation, for example, b3 is greater than b1, that is to say, the slope of the change line of the highest display brightness in the fourth segment interval is greater than the highest display brightness in the second segment interval The slope of the change line, the highest display brightness has a greater rate of change in the fourth segment interval.
  • the maximum display brightness of the full screen is, for example, between 75-150 nit.
  • the average image level corresponding to the image to be displayed is greater than or equal to the average image level corresponding to the picture of monochrome, 255 grayscale, 100% window and less than or equal to the corresponding average image level of the picture of mixed color, 255 grayscale, 100% window.
  • the maximum display brightness of the display panel is between 75-150 nit, and the specific value of the maximum display brightness can be calculated according to the relation (5).
  • the variation curve of the highest display brightness with the average image level is continuous in four subsections and transitions smoothly at the boundary points.
  • the value range of the average image unit can be divided into two segmentation intervals, three segmentation intervals or more than four Segment interval.
  • other cut-off point values may also be used.
  • the number of segmentation intervals and the value of the cut-off points of the segmentation intervals can be set according to requirements.
  • Table 1 shows brightness data obtained from actual tests after the brightness is adjusted according to the method for determining brightness according to an embodiment of the present disclosure.
  • RB color mixing indicates the situation where red and blue are mixed, the highest grayscale (255 grayscale), and 100% full-screen display.
  • FIG. 4 shows a schematic diagram of a relationship curve between the maximum display brightness and the average image level drawn according to the data in Table 1 provided by at least one embodiment of the present disclosure.
  • the abscissa represents the normalized average image level
  • the ordinate represents the highest display brightness.
  • the maximum display brightness Lmax is between 515.8 and 527.1, and the maximum display brightness in the first subsection is basically maintained at around 527 nit.
  • the maximum display brightness decreases as the APL increases, and the maximum display brightness ranges from 200 to 527 nit.
  • the maximum display brightness ranges from 100 to 200 nits, and the maximum display brightness decreases as the APL increases. Therefore, the variation trend and value of the maximum display luminance obtained in the actual test with the change of APL are basically consistent with the relational expression of the above-mentioned relational information between the maximum display luminance and the average image level.
  • Fig. 5 shows a schematic block diagram of an apparatus 500 for determining brightness provided by at least one embodiment of the present disclosure.
  • the brightness determining device 500 includes a first determining module 510 , a second determining module 520 and a third determining module 530 .
  • the first determination module 510 is configured to determine the first display brightnesses respectively corresponding to the plurality of pixels based on the image to be displayed.
  • the first determination module 510 may, for example, execute step S210 described in FIG. 2 .
  • the second determining module 520 is configured to determine a reference average image level corresponding to the image to be displayed based on the first display luminance respectively corresponding to the plurality of pixels.
  • the second determining module 520 may, for example, execute step S220 described in FIG. 2 .
  • the third determining module 530 is configured to determine a target maximum display brightness corresponding to the display panel during displaying an image to be displayed based on the reference average image level and information about the relationship between the average image level and the maximum display brightness.
  • the value range corresponding to the average image level includes at least two subsections, and the relationship information includes information on the change of the highest display brightness with the value of the average image level in the at least two subsections; In the segment intervals, the change rate of the maximum display brightness varies with the average image level; in at least one segment interval, the maximum display brightness decreases with the increase of the average image level.
  • the third determining module 530 may, for example, execute step S230 described in FIG. 2 .
  • the first determining module 510, the second determining module 520 and the third determining module 530 may be implemented as hardware, software, firmware and any feasible combination thereof.
  • the first determining module 510, the second determining module 520 and the third determining module 530 may be dedicated or general-purpose circuits, chips or devices, or may be a combination of a processor and a memory.
  • the embodiment of the present disclosure does not limit it.
  • each module of the brightness determination device 500 corresponds to each step of the aforementioned brightness determination method, and for the specific functions and technical effects of the brightness determination device 500, please refer to the relevant description about the brightness determination method , which will not be repeated here.
  • the components and structures of the brightness determining apparatus 500 shown in FIG. 5 are only exemplary, not limiting, and the brightness determining apparatus 500 may further include other components and structures as required.
  • the brightness determination device 500 may further include a fourth determination module and a presentation module, the fourth determination module is configured to: determine a plurality of second display brightnesses respectively corresponding to a plurality of pixels during displaying an image to be displayed according to the target maximum display brightness .
  • the presenting module is configured to: present an image to be displayed based on a plurality of second display brightnesses.
  • the presentation module may include a display screen.
  • the second determination module 520 is further configured to: determine a reference average image level corresponding to the image to be displayed according to the first display luminances respectively corresponding to all the plurality of pixels.
  • the second determination module 520 is further configured to: determine at least one target pixel among the plurality of pixels; and determine a reference average image level corresponding to the image to be displayed according to the first display brightness corresponding to the at least one target pixel.
  • the second determining module 520 is further configured to: filter out pixels whose first display brightness is greater than a brightness threshold from the plurality of pixels as at least one target pixel.
  • the second determination module 520 is further configured to: determine the display colors corresponding to the plurality of pixels based on the image to be displayed; determine at least one target display color based on the display colors corresponding to the plurality of pixels, wherein each target display color is displayed The ratio between the pixel of the color and the plurality of pixels is greater than a ratio threshold; and the pixel corresponding to the target display color is selected from the plurality of pixels as at least one target pixel.
  • any two comparison segment intervals in at least two segment intervals include the first comparison segment interval and the second comparison segment interval, and the average image level is within the range of the first comparison segment interval.
  • the maximum value in the segment interval is less than or equal to the minimum value of the average image level in the second comparison segment interval.
  • the change speed of the highest display brightness in the first comparison segment interval is less than or equal to the change speed of the highest display brightness in the second comparison segment interval.
  • the value range corresponding to the average image level includes a minimum value, a middle value and a maximum value, and the middle value is an average value of the maximum value and the minimum value.
  • the number of band intervals that lie in the range from the minimum value to the median value is greater than the number of bin intervals that lie in the range from the median value to the maximum value.
  • At least two segmental intervals include a first segmental interval, in the first segmental interval, the highest display brightness remains constant with the change of the average image level, and the highest display brightness is a predetermined brightness value.
  • the value of the average image level in the first segment interval is smaller than the value of the average image level in the remaining segment intervals except the first segment interval in at least two segment intervals.
  • At least two segment intervals further include a second segment interval, a third segment interval, and a fourth segment interval, and the value of the average image level is continuous and sequentially increased from the first segment interval to the fourth segment interval.
  • Lmax L*(a2*APL 2 -b2*APL+c2), wherein, a2, b2 and c2 are constants;
  • the value range corresponding to the average image level includes a minimum value, a first value, a second value, a third value and a maximum value, wherein the first value, the second value and the third value are located between the minimum value and the maximum value and increase in turn; the two interval endpoints of the first segment interval are the minimum value and the first value respectively, the two interval endpoints of the second segment interval are the first value and the second value respectively, and the third segment interval The two interval endpoints of are respectively the second value and the third value, and the two interval endpoints of the fourth segment interval are respectively the third value and the maximum value.
  • At least one embodiment of the present disclosure also provides an electronic device including a processor and a memory configured to store one or more computer program modules.
  • One or more computer program modules are configured to be executed by the processor, and one or more computer program modules include instructions for implementing the above brightness determination method.
  • the electronic device reduces the maximum display brightness with the increase of the average image level in at least part of the subsections, and can properly reduce the brightness of the image to be displayed when the overall gray scale of the image to be displayed is high.
  • the overall display brightness is used to reduce power consumption and avoid the problem of excessive power consumption due to excessively high brightness of the display screen; when the overall gray scale of the image to be displayed is low, the overall display brightness of the image to be displayed can be increased, thereby enhancing Details performance, improve the contrast, improve the display effect.
  • segmental adjustment of the brightness can be realized, thereby making the brightness adjustment more flexible.
  • it can be divided into several segments according to the sensitivity of the human eye to brightness changes, and the brightness change rate in line with the viewing comfort of the human eye can be set in different segments, which helps to improve the viewing comfort of the human eye and achieve better viewing effect.
  • Fig. 6 is a schematic block diagram of an electronic device provided by some embodiments of the present disclosure.
  • the electronic device 600 includes a processor 610 and a memory 620 .
  • Memory 620 is used to store non-transitory computer readable instructions (eg, one or more computer program modules).
  • the processor 610 is configured to execute non-transitory computer-readable instructions, and when the non-transitory computer-readable instructions are executed by the processor 610, one or more steps in the brightness determination method described above may be performed.
  • the memory 620 and the processor 610 may be interconnected by a bus system and/or other forms of connection mechanisms (not shown).
  • the processor 610 may be a central processing unit (CPU), a graphics processing unit (GPU), or other forms of processing units having data processing capabilities and/or program execution capabilities.
  • the central processing unit (CPU) may be of X86 or ARM architecture or the like.
  • the processor 610 can be a general-purpose processor or a special-purpose processor, and can control other components in the electronic device 600 to perform desired functions.
  • memory 620 may include any combination of one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or nonvolatile memory.
  • the volatile memory may include random access memory (RAM) and/or cache memory (cache), etc., for example.
  • Non-volatile memory may include, for example, read only memory (ROM), hard disks, erasable programmable read only memory (EPROM), compact disc read only memory (CD-ROM), USB memory, flash memory, and the like.
  • One or more computer program modules can be stored on the computer-readable storage medium, and the processor 610 can run one or more computer program modules to realize various functions of the electronic device 600 .
  • Various application programs, various data, and various data used and/or generated by the application programs can also be stored in the computer-readable storage medium.
  • Fig. 7 is a schematic block diagram of another electronic device provided by some embodiments of the present disclosure.
  • the electronic device 700 is, for example, suitable for implementing the method for determining brightness provided by the embodiments of the present disclosure.
  • the electronic device 700 may be a terminal device or the like. It should be noted that the electronic device 700 shown in FIG. 7 is only an example, which does not impose any limitation on the functions and application scope of the embodiments of the present disclosure.
  • the electronic device 700 may include a processing device (such as a central processing unit, a graphics processing unit, etc.) Various appropriate actions and processes are executed by programs in the memory (RAM) 730 .
  • RAM random access memory
  • various programs and data necessary for the operation of the electronic device 700 are also stored.
  • the processing device 710, the ROM 720, and the RAM 730 are connected to each other through a bus 740.
  • An input/output (I/O) interface 750 is also connected to bus 740 .
  • the following devices can be connected to the I/O interface 750: input devices 760 including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; including, for example, a liquid crystal display (LCD), speaker, vibration an output device 770 such as a computer; a storage device 780 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 790 .
  • the communication means 790 may allow the electronic device 700 to perform wireless or wired communication with other electronic devices to exchange data.
  • FIG. 7 shows electronic device 700 having various means, it should be understood that it is not required to implement or have all of the means shown, and electronic device 700 may alternatively implement or have more or fewer means.
  • the brightness determination method described above may be implemented as a computer software program.
  • embodiments of the present disclosure include a computer program product, which includes a computer program carried on a non-transitory computer readable medium, where the computer program includes program codes for executing the above brightness determination method.
  • the computer program may be downloaded and installed from a network via communication means 790, or installed from storage means 780, or installed from ROM 720.
  • the processing device 710 When the computer program is executed by the processing device 710, the functions defined in the method for determining brightness provided by the embodiments of the present disclosure can be realized.
  • At least one embodiment of the present disclosure also provides a computer-readable storage medium for storing non-transitory computer-readable instructions, and when the non-transitory computer-readable instructions are executed by a computer, the above-mentioned Brightness determination method.
  • the maximum display brightness can be increased with the increase of the average image level in at least part of the segment intervals.
  • the overall display brightness of the image to be displayed can be appropriately reduced to reduce power consumption and avoid the problem of excessive power consumption due to the high brightness of the display screen ;
  • the overall grayscale of the image to be displayed is low, the overall display brightness of the image to be displayed can be increased, thereby enhancing detail performance, increasing contrast, and improving display effect.
  • segmental adjustment of the brightness can be realized, thereby making the brightness adjustment more flexible. For example, it can be divided into several segments according to the sensitivity of the human eye to brightness changes, and the brightness change rate in line with the viewing comfort of the human eye can be set in different segments, which helps to improve the viewing comfort of the human eye and achieve better viewing effect.
  • Fig. 8 is a schematic diagram of a computer-readable storage medium provided by some embodiments of the present disclosure.
  • computer readable storage medium 800 is used to store non-transitory computer readable instructions 810 .
  • the non-transitory computer-readable instructions 810 are executed by a computer, one or more steps in the brightness determination method described above may be performed.
  • computer readable storage medium 800 may be a non-transitory computer readable storage medium.
  • the computer-readable storage medium 800 can be applied to the above-mentioned electronic device 600 .
  • the computer-readable storage medium 800 may be the memory 620 in the electronic device 600 shown in FIG. 6 .
  • the computer-readable storage medium 800 for relevant descriptions about the computer-readable storage medium 800, reference may be made to the corresponding description of the memory 620 in the electronic device 600 shown in FIG. 6 , which will not be repeated here.

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Abstract

一种亮度确定方法、装置、显示面板、电子设备和计算机可读存储介质。该亮度确定方法包括：基于待显示图像，确定显示面板的多个像素分别对应的第一显示亮度；基于多个像素的第一显示亮度，确定参考平均图像电平；基于参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示待显示图像期间显示面板对应的目标最高显示亮度。关系信息包括在平均图像电平对应的至少两个分段区间中，最高显示亮度随着平均图像电平的数值变化信息；在不同的分段区间中，最高显示亮度随着平均图像电平变化的变化速率不同；在至少一个分段区间中，最高显示亮度随着平均图像电平的升高而降低。该方法既可以降低功耗又可以保证显示效果。

Description

亮度确定方法、装置、显示面板、电子设备和存储介质 技术领域
本公开的实施例涉及一种亮度确定方法、亮度确定装置、显示面板、电子设备和计算机可读存储介质。
背景技术
随着显示技术的不断发展，显示面板已经深入人们的工作和生活中，例如，显示面板可以应用在电视机、电脑、智能家居设备等中。常用的显示面板包括液晶显示面板和OLED(Organic Light-Emitting Diode)显示面板。OLED显示面板以其高对比度、可弯曲、响应速度快等优点受到了越来越多的关注。
发明内容
本公开至少一个实施例提供一种亮度确定方法，用于显示面板，所述显示面板包括多个像素，所述方法包括：基于待显示图像，确定所述多个像素分别对应的第一显示亮度；基于所述多个像素分别对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平；以及基于所述参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示所述待显示图像期间所述显示面板对应的目标最高显示亮度，其中，所述平均图像电平对应的取值范围包括至少两个分段区间，所述关系信息包括在所述至少两个分段区间中，所述最高显示亮度随着所述平均图像电平的数值变化信息；在不同的所述分段区间中，所述最高显示亮度随着所述平均图像电平变化的变化速率不同；在至少一个所述分段区间中，所述最高显示亮度随着所述平均图像电平的升高而降低。
例如，在本公开一实施例提供的亮度确定方法中，对于所述至少两个分段区间中的任意两个对比分段区间，所述任意两个对比分段区间包括第一对比分段区间和第二对比分段区间，所述平均图像电平在所述第一对比分段区间中的最大数值小于等于所述平均图像电平在所述第二对比分段区间中的最小数值。在所述第一对比分段区间中所述最高显示亮度的变化速度小于等 于在所述第二对比分段区间中所述最高显示亮度的变化速度。
例如，在本公开一实施例提供的亮度确定方法中，所述平均图像电平对应的取值范围包括最小值、中间值和最大值，所述中间值为所述最大值和所述最小值的平均值。位于所述最小值至所述中间值范围内的分段区间的数量大于位于所述中间值至所述最大值范围内的分段区间的数量。
例如，在本公开一实施例提供的亮度确定方法中，所述至少两个分段区间包括第一分段区间。在所述第一分段区间中，所述最高显示亮度随着所述平均图像电平的变化而保持不变，所述最高显示亮度为预定亮度值。
例如，在本公开一实施例提供的亮度确定方法中，所述第一分段区间中所述平均图像电平的数值小于所述至少两个分段区间中除所述第一分段区间之外的其余分段区间中所述平均图像电平的数值。
例如，在本公开一实施例提供的亮度确定方法中，所述至少两个分段区间还包括第二分段区间、第三分段区间和第四分段区间，所述平均图像电平的数值从所述第一分段区间至所述第四分段区间连续并且依次增大。在所述第二分段区间中，所述最高显示亮度与所述平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a1-b1*APL)，其中，Lmax为所述最高显示亮度，L为所述预定亮度值，APL为所述平均图像电平，a1和b1为常数；在所述第三分段区间中，所述最高显示亮度与所述平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a2*APL 2-b2*APL+c2)，其中，a2、b2和c2为常数；在所述第四分段区间中，所述最高显示亮度与所述平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a3-b3*APL)，其中，a3和b3为常数。
例如，在本公开一实施例提供的亮度确定方法中，所述平均图像电平对应的取值范围包括最小值、第一数值、第二数值、第三数值和最大值，其中，所述第一数值、所述第二数值和所述第三数值位于所述最小值和所述最大值之间并且依次增大。所述第一分段区间的两个区间端点分别为所述最小值和所述第一数值，所述第二分段区间的两个区间端点分别为所述第一数值和所述第二数值，所述第三分段区间的两个区间端点分别为所述第二数值和所述第三数值，所述第四分段区间的两个区间端点分别为所述第三数值和所述最大值。
例如，在本公开一实施例提供的亮度确定方法中，基于所述多个像素的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平，包括：根 据所述多个像素分别对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平。
例如，在本公开一实施例提供的亮度确定方法中，基于所述多个像素的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平，包括：确定所述多个像素中的至少一个目标像素；根据所述至少一个目标像素对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平。
例如，在本公开一实施例提供的亮度确定方法中，确定所述多个像素中的至少一个目标像素，包括：从所述多个像素中筛选出第一显示亮度大于亮度阈值的像素，作为所述至少一个目标像素。
例如，在本公开一实施例提供的亮度确定方法中，确定所述多个像素中的至少一个目标像素，包括：基于所述待显示图像，确定所述多个像素分别对应的显示颜色；基于所述多个像素分别对应的显示颜色，确定至少一个目标显示颜色，其中，显示每个所述目标显示颜色的像素与所述多个像素之间的比例大于比例阈值；从所述多个像素中筛选出与所述目标显示颜色对应的像素，作为所述至少一个目标像素。
例如，本公开一实施例提供的亮度确定方法还包括：根据所述目标最高显示亮度，确定在显示所述待显示图像期间所述多个像素分别对应的多个第二显示亮度；基于所述多个第二显示亮度，呈现所述待显示图像。
本公开至少一个实施例提供一种亮度确定装置，用于显示面板，其中，所述显示面板包括多个像素，所述亮度确定装置包括第一确定模块、第二确定模块和第三确定模块，第一确定模块配置为基于待显示图像，确定所述多个像素分别对应的第一显示亮度；第二确定模块配置为基于所述多个像素分别对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平；第三确定模块配置为基于所述参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示所述待显示图像期间所述显示面板对应的目标最高显示亮度。其中，所述关系信息包括在所述平均图像电平的至少两个分段区间中，所述最高显示亮度随着所述平均图像电平的数值变化信息；在不同的所述分段区间中，所述最高显示亮度随着所述平均图像电平的变化速率不同；在至少一个所述分段区间中，所述最高显示亮度随着所述平均图像电平的升高而降低。
本公开至少一个实施例提供一种显示面板，包括多个像素、数据驱动器、 栅极驱动器和时序控制器，数据驱动器配置为向所述多个像素提供数据信号；栅极驱动器配置为向所述多个像素提供栅极扫描驱动信号；以及时序控制器配置为执行本公开任一实施例提供的亮度确定方法。
本公开至少一个实施例提供一种电子设备，包括处理器；存储器，被配置为存储一个或多个计算机程序模块；其中，所述一个或多个计算机程序模块被配置为由所述处理器执行，所述一个或多个计算机程序模块包括用于实现本公开任一实施例提供的亮度确定方法的指令。
本公开至少一个实施例提供一种计算机可读存储介质，用于存储非暂时性计算机可读指令，当所述非暂时性计算机可读指令由计算机执行时可以实现本公开任一实施例提供的亮度确定方法。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1示出了本公开至少一实施例提供的一种显示面板的示意图；
图2示出了本公开至少一实施例提供的一种亮度确定方法的流程图；
图3示出了本公开至少一实施例提供的最高显示亮度与平均图像电平的关系曲线的示意图；
图4示出了本公开至少一实施例提供的根据表1数据绘制的最高显示亮度与平均图像电平的关系曲线的示意图；
图5示出了本公开至少一个实施例提供的一种亮度确定装置的示意框图；
图6示出了本公开至少一个实施例提供的一种电子设备的示意框图；
图7示出了本公开至少一个实施例提供的另一种电子设备的示意框图；以及
图8示出了本公开至少一个实施例提供的一种计算机可读存储介质的示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公 开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”、“一”或者“该”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
发明人发现相关技术中，在确定每帧图像的显示亮度时，通常根据图像中各个像素的灰阶确定亮度，不同图像均基于同一关系式来确定各个图像显示时的亮度。图像的灰阶越高，则显示亮度越大，从而在图像的整体灰阶较高时，显示面板的整体亮度较大，容易造成功耗过高；而在图像的整体灰阶较低时，又会造成显示面板所显示的显示画面较暗，细节表现不足。
本公开至少一个实施例提供一种亮度确定方法、亮度确定装置、显示面板、电子设备和计算机可读存储介质。该亮度确定方法包括：基于待显示图像，确定多个像素分别对应的第一显示亮度；基于多个像素分别对应的第一显示亮度，确定与待显示图像对应的参考平均图像电平；以及基于参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示待显示图像期间显示面板对应的目标最高显示亮度。平均图像电平对应的取值范围包括至少两个分段区间，关系信息包括在至少两个分段区间中，最高显示亮度随着平均图像电平的数值变化信息；在不同的分段区间中，最高显示亮度随着平均图像电平变化的变化速率不同；在至少一个分段区间中，最高显示亮度随着平均图像电平的升高而降低。
根据本公开实施例的亮度确定方法，通过在至少部分分段区间中使最高显示亮度随着平均图像电平的升高而降低的方式，在待显示图像的整体灰阶 较高的情况下，可以适当降低待显示图像的整体显示亮度，以降低功耗，避免由于显示画面亮度过高而使功耗过高的问题；在待显示图像的整体灰阶较低时，可以提高待显示图像的整体显示亮度，进而可以增强细节表现，提高对比度，改善显示效果。并且，通过在不同的分段区间中使最高显示亮度具有不同的变化速率的方式，可以实现对亮度的分段调节，进而可以使亮度调节更为灵活。例如，可以根据人眼对亮度变化的敏感程度分为若干段，在不同分段中设定符合人眼观看舒适度的亮度变化速率，这样有助于提升人眼观看的舒适性，实现更好的观看效果。
图1示出了本公开至少一实施例提供的一种显示面板的示意图。
如图1所示，该显示面板可以是OLED显示面板，显示面板包括：像素阵列110和面板驱动器。像素阵列110包括阵列排布的多行多列像素Pxij，面板驱动器配置为驱动像素阵列110。面板驱动器可以包括：数据驱动器120、栅极驱动器130以及时序控制器140。本公开实施例的亮度确定方法例如可以由时序控制器140执行。
例如，在一些示例中，像素阵列110还可以包括：与多行多列像素连接的多条扫描信号线(例如，GL1至GLm)和多条数据信号线(例如，DL1至DLn)等。其中，i、j、m和n均为正整数。
例如，在一些示例中，多条扫描信号线GL1至GLm在显示面板的第一方向(例如水平方向)上延伸，多条数据信号线DL1至DLn可以在显示面板的第二方向(例如，垂直方向)上延伸。其中，第一方向和第二方向交叉，例如，第一方向垂直于第二方向。多条数据信号线配置为与多条扫描信号线相交。
例如，在一些示例中，像素阵列110内的每个像素Pxij可以电连接到对应的数据信号线、扫描信号线。
例如，在一些示例中，栅极驱动器130包括的扫描驱动电路可以位于像素阵列110的一侧(例如，在第一方向上像素阵列的一侧，如图1所示的左侧或右侧)，如图1所示，在第一方向上，在栅极驱动器130包括的扫描驱动电路位于像素阵列110的左侧。然而，本实施例对此并不限定。例如，在像素阵列110的相对两侧均设置栅极驱动器130，实现对像素阵列110的双边驱动。
例如，在一些示例中，像素Pxij包括像素电路和发光元件，像素电路可 以为3T1C(T表示晶体管，C表示电容)、4T1C、5T1C、5T2C、6T1C或7T1C结构，本公开实施例对此不做限制。发光元件例如可以为有机发光二极管(OLED)或量子点发光二极管(QLED)，本公开的实施例对此不作限制。
例如，在一些示例中，栅极驱动器130可以采用集成电路形成，或者，可以在制备像素电路的工艺期间直接形成在显示面板的基底上。然而，本实施例对此并不限定。
例如，时序控制器140可以将适合于数据驱动器120的规格的控制信号提供到数据驱动器120。数据驱动器120可以利用从时序控制器140接收的控制信号来产生将提供到数据信号线DL1至DLn的数据信号，进一步地，数据信号线DL1至DLn将数据信号提供至像素阵列包含的多个像素。
例如，时序控制器140还可以将适于栅极驱动器130的规格的时钟信号、扫描起始信号等提供到栅极驱动器130。栅极驱动器130可以利用从时序控制器140接收时钟信号、扫描起始信号等来产生将提供到扫描信号线GL1至GLm的栅极扫描驱动信号。进一步地，扫描信号线GL1至GLm将栅极扫描驱动信号提供至像素阵列包含的多个像素。例如，栅极驱动器130可以包括：扫描驱动电路，扫描驱动电路可以将具有导通电平脉冲的栅极扫描驱动信号顺序地提供到扫描信号线GL1至GLm。例如，扫描驱动电路可以被构造为移位寄存器的形式，并且可以在扫描时钟信号的控制下顺序地将以导通电平脉冲形式提供的扫描起始信号传输到下一级电路的方式产生栅极扫描驱动信号。
例如，每个像素的像素电路在通过数据信号线传输的数据信号和通过扫描信号线传输的栅极扫描驱动信号的控制下工作，以驱动像素的发光元件发光从而实现显示等操作。
例如，显示面板可以为：55寸4K OLED显示面板、49寸OLED显示面板、55寸8K OLED显示面板等。
图2示出了本公开至少一实施例提供的一种亮度确定方法的流程图。
如图2所示，该亮度确定方法例如可以应用于图1所示的显示面板，该亮度确定方法可以包括步骤S210～S230。
步骤S210：基于待显示图像，确定多个像素分别对应的第一显示亮度。
步骤S220：基于多个像素分别对应的第一显示亮度，确定与待显示图 像对应的参考平均图像电平。
步骤S230：基于参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示待显示图像期间显示面板对应的目标最高显示亮度。
例如，平均图像电平对应的取值范围包括至少两个分段区间，关系信息包括在至少两个分段区间中，最高显示亮度随着平均图像电平的数值变化信息；在不同的分段区间中，最高显示亮度随着平均图像电平变化的变化速率不同；在至少一个分段区间中，最高显示亮度随着平均图像电平的升高而降低，也就是说，最高显示亮度的值随着平均图像电平的值的升高而降低。
例如，在步骤S210中，可以先获取待显示图像的灰阶信息，根据灰阶信息确定与待显示图像对应的每个像素的第一显示亮度。例如可以采用相关技术中基于灰阶确定亮度的方式来执行该步骤S210，本公开实施例在此不再赘述。
例如，在步骤S220中，根据各个像素的第一显示亮度，确定待显示图对应的平均图像电平(APL，Average Picture Level)，即上述参考平均图像电平。参考平均图像电平可以反映待显示图像的整体明亮程度。
例如，在一些示例中，在步骤S220中，可以根据显示面板中用于显示待显示图像的全部像素的第一显示亮度确定待显示图像对应的参考平均图像电平。在本公开的实施例中，根据显示面板中用于显示待显示图像的全部像素的第一显示亮度确定参考平均图像电平，可以使参考平均图像电平准确地反映待显示图像的明暗程度，进而有助于提高后续根据参考平均图像电平确定的目标最高显示亮度的准确度。需要说明的是，显示面板中用于显示待显示图像的全部像素可以为显示面板中的所有像素，也可以为显示面板中的部分像素，其具体根据待显示图像确定，在本公开的实施例中，以显示面板中用于显示待显示图像的全部像素可以为显示面板中的所有像素为例进行描述。
例如，参考平均图像电平的计算公式如下式(1)所示。
APL＝sum_all/k1(1)
其中，APL为参考平均图像电平，k1为常数(k1使得APL的值位于0～1之间)，sum_all为显示面板中用于显示待显示图像的全部像素的第一显示亮度的总和。例如，在显示面板包括R(红色)、G(绿色)和B(蓝色) 三种像素的情况下，sum_all＝sum_R+sum_G+sum_B，其中，sum_R为显示面板中用于显示待显示图像的全部红色像素的第一显示亮度之和，sum_G为显示面板中用于显示待显示图像的全部绿色像素的第一显示亮度之和，sum_B为显示面板中用于显示待显示图像的全部蓝色像素的第一显示亮度之和。在显示面板包括R(红色)、G(绿色)、B(蓝色)和W(白色)四种像素的情况下，sum_all＝sum_R+sum_G+sum_B+sum_W，其中，sum_W为显示面板中用于显示待显示图像的全部白色像素的第一显示亮度之和。
例如，可以利用常数将APL归一化为0～1之间的数值。在显示面板无显示画面的情况下，全部像素的亮度为0，可以将APL定义为0(即APL＝0)。
例如，在100％全屏显示并且两种不同颜色的像素在最高灰阶(255灰阶)下混色显示的情况下，将APL定义为1(即APL＝1)。也就是说，APL＝1对应的是混合色(例如RG、GB、RB)、最高灰阶(255灰阶)、100％全屏显示的情况，其中，R代表红色、G代表绿色、B代表蓝色、W代表白色。例如，全屏的红色像素和绿色像素均以255灰阶显示时，APL＝1。
例如，APL＝0.5对应的是单色(R、G、B、或W)、最高灰阶(255灰阶)、100％全屏显示的情况。例如，全屏的红色像素以255灰阶显示并且不显示除红色之外的其他颜色的情况下，APL＝0.5。
例如，APL＝0.125，对应单色(R、G、B、或W)、255灰阶、25％窗口显示的情况，例如，25％窗口中的红色像素以255灰阶显示并且不显示除红色之外的其他颜色的情况下，APL＝0.125。例如，本公开实施例中的x％窗口(x为介于0和100之间的数值)可以表示占全屏显示面积的x％的显示区域。
例如，APL＝0.05，对应单色(R、G、B、或W)、255灰阶、10％窗口显示的情况，例如，10％窗口中的红色像素以255灰阶显示并且不显示除红色之外的其他颜色的情况下，APL＝0.05。
例如，通常情况下，较少会出现两种以上的颜色在最高灰阶下混色显示，例如三种颜色在最高灰阶下混色显示，若存在这种情况，则将对应的APL设定为1。
例如，在另一些示例中，在步骤S220中，还可以采用以下方式确定参考平均图像电平：确定多个像素中的至少一个目标像素；根据至少一个目标像素对应的第一显示亮度，确定与待显示图像对应的参考平均图像电平。
例如，从多个像素中选择部分像素，将该部分像素作为目标像素。然后根据该部分像素的第一显示亮度计算参考平均图像电平。例如，可以将全部目标像素的第一显示亮度进行加和并归一化的结果作为参考平均图像电平。在本公开的实施例中，根据部分像素的第一显示亮度确定平均图像电平，可以提高计算速度，提升处理效率。可以根据以下两种方式中的一种从多个像素中选择目标像素。
例如，在第一种方式中，可以从多个像素中筛选出第一显示亮度大于亮度阈值的像素，作为该至少一个目标像素。即每个目标像素对应的第一显示亮度均大于亮度阈值。例如，亮度阈值可以是显示面板中用于显示待显示图像的全部像素的第一显示亮度的平均值，或者，可以是显示面板中用于显示待显示图像的全部像素的第一显示亮度的中位数(即显示面板中用于显示待显示图像的全部像素的第一显示亮度按照数值大小顺序排列而成的数据序列中居于中间位置的数值)，或者可以是根据实际需要而确定的其他数值。也就是说，可以从多个像素中筛选出亮度较大的像素作为目标像素。
例如，在第二种方式中，可以基于待显示图像，确定多个像素分别对应的显示颜色；基于多个像素分别对应的显示颜色，确定至少一个目标显示颜色，其中，显示每个目标显示颜色的像素与多个像素之间的比例大于比例阈值；从多个像素中筛选出与目标显示颜色对应的像素，作为至少一个目标像素。
例如，先根据待显示图像，确定每种颜色(例如R、G和B或R、G、B和W)对应的像素的数量，从中选取像素数量占比较大的颜色作为目标显示颜色。例如，显示红色的像素占显示面板中用于显示待显示图像的全部像素的20％，显示蓝色的像素占显示面板中用于显示待显示图像的全部像素的20％，显示绿色的像素占显示面板中用于显示待显示图像的全部像素的60％，比例阈值例如可以是30％，则绿色为目标显示颜色，将显示绿色的全部像素作为目标像素。比例阈值可以根据实际需求而定，本公开对比例阈值的具体数值不做限制。
例如，参考平均图像电平还可以根据其他方式确定，例如可以将显示待显示图像的所有像素的第一显示亮度的平均值作为参考平均图像电平。在以下的一些实施例中，将以上式(1)确定参考平均图像电平的方式为例对本公开实施例的亮度确定方法进行解释和说明。
例如，在得到参考平均图像电平之后，可以执行步骤S230，以根据参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示待显示图像期间显示面板对应的目标最高显示亮度。例如，在平均图像电平的取值范围(例如0～1)内可以包括连续的四个分段区间：第一分段区间、第二分段区间、第三分段区间和第四分段区间。在第一分段区间、第二分段区间、第三分段区间和第四分段区间中，平均图像电平与最高显示亮度具有不同的关系式。
例如，在至少一个分段区间中，最高显示亮度随着平均图像电平的升高而降低。在一些示例中，在全部分段区间(例如第一分段区间至第四分段区间)中，最高显示亮度均随着平均图像电平的升高而降低，但是在不同的分段区间中最高显示亮度下降的速率不同。在另一些示例中，在部分分段区间(例如第二分段区间至第四分段区间)中，最高显示亮度均随着平均图像电平的升高而降低，但是在不同的分段区间中最高显示亮度下降的速率不同。例如，可以将平均图像电平的数值高于某一阈值的若干个分段区间作为该部分分段区间，也就是说，若某一个或多个分段区间包含的平均图像电平的最小数值高于或等于某一阈值，则在该某一个或多个分段区间中，使最高显示亮度随着平均图像电平的升高而降低。
例如，在步骤S230中，可以先确定参考平均图像电平所在的分段区间，然后将参考平均图像电平代入相应分段区间的关系式中，即可计算得到对应的最高显示亮度，将计算得到的最高显示亮度作为与待显示图像对应的目标最高显示亮度。
例如，在得到目标最高显示亮度之后，根据目标最高显示亮度，确定在显示待显示图像期间多个像素分别对应的多个第二显示亮度。
例如，该目标最高显示亮度为待显示图像中具有最大亮度的像素对应的亮度，其余像素的亮度可以根据该最高显示亮度进行相应调整。例如，针对待显示图像，具有最高显示亮度的像素为像素PxA，根据步骤S210确定像素PxA的第一显示亮度为L A，根据步骤S230确定待显示图像对应的最高显示亮度为L A’，即对像素PxA对应的第一显示亮度进行调整，以使得像素PxA的调整后的亮度(即像素PxA对应的第二显示亮度)为L A’，则其余任一像素Pxij的第二显示亮度可以根据下式(2)确定：
L ij’＝(L A’/L A)*L ij       (2)
其中，L ij为像素Pxij的第一显示亮度，L ij’为像素Pxij的第二显示亮度。
例如，在得到与待显示图像对应的各个像素的第二显示亮度之后，基于各个像素的第二显示亮度，呈现该待显示图像。
例如，时序控制器140可以基于各个像素的第二显示亮度生成控制信号，并将控制信号提供到数据驱动器120。数据驱动器120可以利用从时序控制器140接收的控制信号来产生数据信号，并进一步由数据信号线DL1至DLn将数据信号提供到各个像素。
例如，在一些实施例中，时序控制器140还可以将适于栅极驱动器130的规格的时钟信号、扫描起始信号等提供到栅极驱动器130。栅极驱动器130可以利用从时序控制器140接收时钟信号、扫描起始信号等来产生将提供到扫描信号线GL1至GLm的扫描信号。例如，在呈现待显示图像的过程中，栅极驱动器130可以每次导通像素阵列中的一行像素，并且数据驱动器120将相应数据信号写入导通的一行像素中，使该行像素呈现相应的亮度。以此方式进行逐行导通和写入，即可使显示面板按照各个像素分别对应的第二显示亮度呈现待显示图像。
根据本公开实施例的亮度确定方法，通过在至少部分分段区间中使最高显示亮度随着平均图像电平的升高而降低的方式，在待显示图像的整体灰阶较高的情况下，可以适当降低待显示图像的整体显示亮度，以降低功耗，避免由于显示画面亮度过高而使功耗过高的问题；在待显示图像的整体灰阶较低时，可以提高待显示图像的整体显示亮度，进而可以增强细节表现，提高对比度，改善显示效果。并且，通过在不同的分段区间中使最高显示亮度具有不同的变化速率的方式，可以实现对亮度的分段调节，进而可以使亮度调节更为灵活。例如，可以根据人眼对亮度变化的敏感程度分为若干段，在不同分段中设定符合人眼观看舒适度的亮度变化速率，这样有助于提升人眼观看的舒适性，实现更好的观看效果。
例如，对于至少两个分段区间中的任意两个对比分段区间(两个对比分段区间表示至少两个分段区间中可以进行对比的两个分段区间)，任意两个对比分段区间包括第一对比分段区间和第二对比分段区间，平均图像电平在第一对比分段区间中的最大数值小于等于平均图像电平在第二对比分段区间中的最小数值。在第一对比分段区间中最高显示亮度的变化速度小于等于在第二对比分段区间中最高显示亮度的变化速度。
例如，第一对比分段区间和第二对比分段区间可以是该至少两个分段区间中的任意两个分段区间，可以是相邻的两个分段区间，也可以是间隔的两个分段区间。这里为了描述方便，将任意两个分段区间分别命名为第一对比分段区间和第二对比分段区间，并将该任意两个分段区间中，APL数值较小的分段区间称为第一对比分段区间，APL数值较大的分段区间称为第二对比分段区间。最高显示亮度在第一对比分段区间中的变化速度小于在第二对比分段区间中的变化速度，意在说明，对于任意两个分段区间，在APL数值相对较小的分段区间中，最高显示亮度的变化速度较慢；而在APL数值相对较大的分段区间中，最高显示亮度的变化速度较快。也就是说，随着APL数值的升高，最高显示亮度的变化速度也相应增快。由于人眼对低灰阶下的亮度变化较为敏感，因而，基于这一方案，在待显示画面的整体灰阶较低的情况下可以使亮度变化不明显，进而更加适应人眼，提升观看体验。
例如，平均图像电平对应的取值范围包括最小值、中间值和最大值，中间值为最大值和最小值的平均值。位于最小值至中间值范围内的分段区间的数量大于位于中间值至最大值范围内的分段区间的数量。
例如，最小值为0，最大值为1，中间值为0.5，位于0～0.5范围内的分段区间的数量大于位于0.5～1范围内的分段区间的数量。例如，在0～0.5范围内存在三个分段区间，而在0.5～1范围内存在一个分段区间。分段越多则亮度变化过渡更平滑，因此，基于这一方案，可以在人眼较为敏感的低灰阶范围内，使亮度变化过渡更平滑。
例如，至少两个分段区间包括第一分段区间，在第一分段区间中，最高显示亮度随着平均图像电平的变化而保持不变，最高显示亮度为预定亮度值。也就是说，只要参考平均图像电平的数值处于第一分段区间内，则其对应的目标最高显示亮度的数值维持为预定亮度值。
例如，在平均图像电平的至少一个分段区间中，最高显示亮度保持不变。基于这一方式，可以使处于某一灰阶水平的图像的显示亮度基本一致，进而可以使画面衔接更自然。
例如，该第一分段区间中平均图像电平的最大数值小于等于至少两个分段区间中除该第一分段区间之外的其余分段区间中平均图像电平的最小数值。也就是说，该第一分段区间可以是全部分段区间中平均图像电平的值最小的分段区间。基于这一方式，可以在人眼对亮度变化较为敏感的低灰阶范 围内，使最高显示亮度保持不变，提升人眼观看的舒适度。
例如，至少两个分段区间还包括第二分段区间、第三分段区间和第四分段区间，平均图像电平的数值从第一分段区间至第四分段区间连续并且依次增大。在第二分段区间至第四分段区间中，最高显示亮度均随着平均图像电平的升高而降低。
图3示出了本公开至少一实施例提供的最高显示亮度与平均图像电平的关系曲线的示意图。在图3所示的曲线图中，横坐标表示归一化后的平均图像电平，纵坐标表示最高显示亮度。
如图3所示，例如，平均图像电平对应的取值范围包括最小值0、第一数值P1、第二数值P2、第三数值P3和最大值1，其中，第一数值P1、第二数值P2和第三数值P3位于最小值0和最大值1之间并且依次增大；第一分段区间的两个区间端点分别为最小值0和第一数值P1，第二分段区间的两个区间端点分别为第一数值P1和第二数值P2，第三分段区间的两个区间端点分别为第二数值P2和第三数值P3，第四分段区间的两个区间端点分别为第三数值P3和最大值1。
例如，根据人眼对亮度变化的敏感度，第一数值P1可以为小于或等于0.1的数值，第二数值P2可以为大于或等于0.1且小于或等于0.2之间的数值，第三数值P3可以为大于或等于0.3且小于或等于0.7之间的数值。
例如，根据人眼对亮度变化的敏感度，可以将第一数值P1设定为0.05，第二数值P2设定为0.125，第三数值P3设定为0.5，则第一分段区间为0＜APL≤0.05，第一分段区间为0.05≤APL≤0.125，第三分段区间为0.125≤APL≤0.5，第四分段区间为0.5≤APL≤1。
例如，可以结合功耗，确定平均图像电平分别为最小值、第一数值、第二数值、第三数值和最大值的情况下，对应的最高显示亮度，使任一分段区间中，最高显示亮度对应的功耗均不超出预定功耗范围，在本公开的实施例中，在不同的显示图像下，根据不同的APL来调整屏幕最高显示亮度，在保证功耗不超标的情况下，使画面具有较高的显示亮度。例如，在平均图像电平数值为0.05的情况下，计算预定功耗范围内的最高功耗对应的最高显示亮度的数值L(L例如为600nit(尼特))，将该最高显示亮度L作为第一分段区间对应的预定亮度值，例如，在显示面板显示单色、255灰阶、10％窗口的画面的情况下，显示面板的最高显示亮度即为上述预定亮度值，预定亮 度值可以为600nit。在平均图像电平数值为0.125的情况下，计算预定功耗范围内的最高功耗对应的最高显示亮度的数值(例如为400nit)。在平均图像电平数值为0.5的情况下，计算预定功耗范围内的最高功耗对应的最高显示亮度的数值(例如为150nit)。在平均图像电平数值为0.125的情况下，计算预定功耗范围内的最高功耗对应的最高显示亮度的数值(例如为75nit)。
例如，在第一分段区间APL∈(0～0.05]中，最高显示亮度维持为预定亮度值，例如预定亮度值为600nit，即此时最高显示亮度与平均图像电平之间的关系信息表示为关系式：Lmax＝L。例如，在待显示图像对应的平均图像电平小于或等于单色、255灰阶、10％窗口的画面对应的平均图像电平的情况下，在显示面板显示待显示画面期间，显示面板的最高显示亮度为600nit。
例如，在第二分段区间APL∈[0.05～0.125]中，最高显示亮度与平均图像电平之间的关系信息表示为关系式(3)：
Lmax＝L*(a1-b1*APL)    (3)
其中，Lmax为最高显示亮度，L为预定亮度值，APL为平均图像电平，a1和b1为常数，且可以根据实际情况具体设置。例如，在该第二分段区间中，全屏最高显示亮度例如处于400～600nit之间。例如，在待显示图像对应的平均图像电平大于或等于单色、255灰阶、10％窗口的画面对应的平均图像电平并且小于或等于单色、255灰阶、25％窗口的画面对应的平均图像电平的情况下，在显示面板显示待显示画面期间，显示面板的最高显示亮度介于400～600nit之间，最高显示亮度的具体数值可以根据关系式(3)计算得到。
例如，在第三分段区间APL∈[0.125～0.5]中，最高显示亮度与平均图像电平之间的关系信息表示为关系式(4)：
Lmax＝L*(a2*APL 2-b2*APL+c2)      (4)
其中，a2、b2和c2为常数，且可以根据实际情况具体设置。例如，在该第三分段区间中，全屏最高显示亮度例如处于150～400nit之间。例如，在待显示图像对应的平均图像电平大于或等于单色、255灰阶、25％窗口的画面对应的平均图像电平并且小于或等于单色、255灰阶、100％窗口的画面对应的平均图像电平的情况下，在显示面板显示待显示画面期间，显示面板的最高显示亮度介于150～400nit之间，最高显示亮度的具体数值可以根据关系式(4)计算得到。
例如，在第四分段区间APL∈[0.5～1]中，最高显示亮度与平均图像电平之间的关系信息表示为关系式(5)：
Lmax＝L*(a3-b3*APL)     (5)
其中，a3和b3为常数，且可以根据实际情况具体设置，例如b3大于b1，也就是说，在第四分段区间中最高显示亮度的变化直线的斜率大于第二分段区间中最高显示亮度的变化直线的斜率，最高显示亮度在第四分段区间中的变化速率更大。
例如，在该第四分段区间中，全屏最高显示亮度例如处于75～150nit之间。例如，在待显示图像对应的平均图像电平大于或等于单色、255灰阶、100％窗口的画面对应的平均图像电平并且小于或等于混色、255灰阶、100％窗口的画面对应的平均图像电平的情况下，在显示面板显示待显示画面期间，显示面板的最高显示亮度介于75～150nit之间，最高显示亮度的具体数值可以根据关系式(5)计算得到。
例如，最高显示亮度随平均图像电平的变化曲线在四个分段区间连续且在分界点处过渡平滑。
例如，除了上述实施例中的分段方式之外，还可以采用其他分段方式，例如，可以将平均图像单元的取值范围分为两个分段区间、三个分段区间或者大于四个分段区间。例如，除了上述实施例中的分界点数值之外，还可以采用其他分界点数值。在实际应用过程中，可以根据需求设定分段区间的数量以及分段区间的分界点数值。
例如，下表1示出了根据本公开实施例的亮度确定方法对亮度进行调整后，实际测试得到的亮度数据。
表1
  画面 APL 最高显示亮度(nit)
1 1.1％W255 0.0055 527.1
2 4.3％W255 0.0217 526.7
3 10.0％W255 0.05 523.9
4 16.0％W255 0.08 521.5
5 17.0％W255 0.085 517.8
6 25.0％W255 0.125 515.8
7 27.0％W255 0.135 462.5
8 39.0％W255 0.195 397.2
9 50.0％W255 0.25 396.5
10 53.0％W255 0.265 378.2
11 69.0％W255 0.345 295.1
12 75.0％W255 0.375 277.1
13 88.0％W255 0.44 231.8
14 100.0％W255 0.5 200.6
15 RB混色 1 102
例如，表1中的1.1％W255表示白色、255灰阶、1.1％窗口显示的情况，4.3％W255表示白色、255灰阶、4.3％窗口显示的情况，100.0％W255表示白色、255灰阶、100％窗口显示的情况，等等。RB混色表示红色和蓝色混合、最高灰阶(255灰阶)、100％全屏显示的情况。
图4示出了本公开至少一实施例提供的根据表1数据绘制的最高显示亮度与平均图像电平的关系曲线的示意图。在图4所示的曲线图中，横坐标表示归一化后的平均图像电平，纵坐标表示最高显示亮度。
如图4所示，在APL≤0.125的情况下，最高显示亮度Lmax介于515.8～527.1之间，第一分段区间中的最高显示亮度基本上维持在527nit左右。在0.125≤APL≤0.5的情况下，最高显示亮度随APL增大而减小，最高显示亮度的范围为200～527nit。在0.5≤APL≤1的情况下，最高显示亮度的范围为100～200nit，最高显示亮度随APL增大而下降的幅度增大。因此，实际测试得到的最高显示亮度随APL的变化而变化的趋势及数值与上述最高显示亮度与平均图像电平之间的关系信息的关系式基本一致。
图5示出了本公开至少一个实施例提供的一种亮度确定装置500的示意框图。
例如，如图5所示，该亮度确定装置500包括第一确定模块510、第二确定模块520和第三确定模块530。
第一确定模块510配置为基于待显示图像，确定多个像素分别对应的第一显示亮度。第一确定模块510例如可以执行图2描述的步骤S210。
第二确定模块520配置为基于多个像素分别对应的第一显示亮度，确定与待显示图像对应的参考平均图像电平。第二确定模块520例如可以执行图2描述的步骤S220。
第三确定模块530配置为基于参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示待显示图像期间显示面板对应的目标最高显示亮度。例如，平均图像电平对应的取值范围包括至少两个分段区间，关系信息包括在该至少两个分段区间中，最高显示亮度随着平均图像电平的数值变化信息；在不同的分段区间中，最高显示亮度随着平均图像电平的变化速率不同；在至少一个分段区间中，最高显示亮度随着平均图像电平的升高而降低。第三确定模块530例如可以执行图2描述的步骤S230。
例如，第一确定模块510、第二确定模块520和第三确定模块530可以实现为硬件、软件、固件以及它们的任意可行的组合。例如，第一确定模块510、第二确定模块520和第三确定模块530可以为专用或通用的电路、芯片或装置等，也可以为处理器和存储器的结合。关于上述各个单元的具体实现形式，本公开的实施例对此不作限制。
需要说明的是，本公开的实施例中，亮度确定装置500的各个模块与前述的亮度确定方法的各个步骤对应，关于亮度确定装置500的具体功能和技术效果可以参考关于亮度确定方法的相关描述，此处不再赘述。图5所示的亮度确定装置500的组件和结构只是示例性的，而非限制性的，根据需要，该亮度确定装置500还可以包括其他组件和结构。
例如，亮度确定装置500还可以包括第四确定模块和呈现模块，该第四确定模块配置为：根据目标最高显示亮度，确定在显示待显示图像期间多个像素分别对应的多个第二显示亮度。该呈现模块配置为：基于多个第二显示亮度，呈现待显示图像。该呈现模块可以包括显示屏。
例如，第二确定模块520进一步配置为：根据全部多个像素分别对应的第一显示亮度，确定与待显示图像对应的参考平均图像电平。
例如，第二确定模块520进一步配置为：确定多个像素中的至少一个目标像素；根据至少一个目标像素对应的第一显示亮度，确定与待显示图像对应的参考平均图像电平。
例如，第二确定模块520进一步配置为：从多个像素中筛选出第一显示亮度大于亮度阈值的像素，作为至少一个目标像素。
例如，第二确定模块520进一步配置为：基于待显示图像，确定多个像素分别对应的显示颜色；基于多个像素分别对应的显示颜色，确定至少一个目标显示颜色，其中，显示每个目标显示颜色的像素与多个像素之间的比例 大于比例阈值；从多个像素中筛选出与目标显示颜色对应的像素，作为至少一个目标像素。
例如，对于至少两个分段区间中的任意两个对比分段区间，任意两个对比分段区间包括第一对比分段区间和第二对比分段区间，平均图像电平在第一对比分段区间中的最大数值小于等于平均图像电平在第二对比分段区间中的最小数值。在第一对比分段区间中最高显示亮度的变化速度小于等于在第二对比分段区间中最高显示亮度的变化速度。
例如，平均图像电平对应的取值范围包括最小值、中间值和最大值，中间值为最大值和最小值的平均值。位于最小值至中间值范围内的分段区间的数量大于位于中间值至最大值范围内的分段区间的数量。
例如，至少两个分段区间包括第一分段区间，在第一分段区间中，最高显示亮度随着平均图像电平的变化而保持不变，最高显示亮度为预定亮度值。
例如，第一分段区间中平均图像电平的数值小于至少两个分段区间中除第一分段区间之外的其余分段区间中平均图像电平的数值。
例如，至少两个分段区间还包括第二分段区间、第三分段区间和第四分段区间，平均图像电平的数值从第一分段区间至第四分段区间连续并且依次增大。在第二分段区间中，最高显示亮度与平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a1-b1*APL)，其中，Lmax为最高显示亮度，L为预定亮度值，APL为平均图像电平，a1和b1为常数；在第三分段区间中，最高显示亮度与平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a2*APL 2-b2*APL+c2)，其中，a2、b2和c2为常数；在第四分段区间中，最高显示亮度与平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a3-b3*APL)，其中，a3和b3为常数。
例如，平均图像电平对应的取值范围包括最小值、第一数值、第二数值、第三数值和最大值，其中，第一数值、第二数值和第三数值位于最小值和最大值之间并且依次增大；第一分段区间的两个区间端点分别为最小值和第一数值，第二分段区间的两个区间端点分别为第一数值和第二数值，第三分段区间的两个区间端点分别为第二数值和第三数值，第四分段区间的两个区间端点分别为第三数值和最大值。
本公开的至少一个实施例还提供了一种电子设备，该电子设备包括处理 器和存储器，存储器被配置为存储一个或多个计算机程序模块。一个或多个计算机程序模块被配置为由处理器执行，一个或多个计算机程序模块包括用于实现上述的亮度确定方法的指令。该电子设备通过在至少部分分段区间中使最高显示亮度随着平均图像电平的升高而降低的方式，在待显示图像的整体灰阶较高的情况下，可以适当降低待显示图像的整体显示亮度，以降低功耗，避免由于显示画面亮度过高而使功耗过高的问题；在待显示图像的整体灰阶较低时，可以提高待显示图像的整体显示亮度，进而可以增强细节表现，提高对比度，改善显示效果。并且，通过在不同的分段区间中使最高显示亮度具有不同的变化速率的方式，可以实现对亮度的分段调节，进而可以使亮度调节更为灵活。例如，可以根据人眼对亮度变化的敏感程度分为若干段，在不同分段中设定符合人眼观看舒适度的亮度变化速率，这样有助于提升人眼观看的舒适性，实现更好的观看效果。
图6为本公开一些实施例提供的一种电子设备的示意框图。如图6所示，该电子设备600包括处理器610和存储器620。存储器620用于存储非暂时性计算机可读指令(例如一个或多个计算机程序模块)。处理器610用于运行非暂时性计算机可读指令，非暂时性计算机可读指令被处理器610运行时可以执行上文所述的亮度确定方法中的一个或多个步骤。存储器620和处理器610可以通过总线系统和/或其它形式的连接机构(未示出)互连。
例如，处理器610可以是中央处理单元(CPU)、图形处理单元(GPU)或者具有数据处理能力和/或程序执行能力的其它形式的处理单元。例如，中央处理单元(CPU)可以为X86或ARM架构等。处理器610可以为通用处理器或专用处理器，可以控制电子设备600中的其它组件以执行期望的功能。
例如，存储器620可以包括一个或多个计算机程序产品的任意组合，计算机程序产品可以包括各种形式的计算机可读存储介质，例如易失性存储器和/或非易失性存储器。易失性存储器例如可以包括随机存取存储器(RAM)和/或高速缓冲存储器(cache)等。非易失性存储器例如可以包括只读存储器(ROM)、硬盘、可擦除可编程只读存储器(EPROM)、便携式紧致盘只读存储器(CD-ROM)、USB存储器、闪存等。在计算机可读存储介质上可以存储一个或多个计算机程序模块，处理器610可以运行一个或多个计算机程序模块，以实现电子设备600的各种功能。在计算机可读存储介质中还可以存储各种应用程序和各种数据以及应用程序使用和/或产生的各种数据等。
需要说明的是，本公开的实施例中，电子设备600的具体功能和技术效果可以参考上文中关于亮度确定方法的描述，此处不再赘述。
图7为本公开一些实施例提供的另一种电子设备的示意框图。该电子设备700例如适于用来实施本公开实施例提供的亮度确定方法。电子设备700可以是终端设备等。需要注意的是，图7示出的电子设备700仅仅是一个示例，其不会对本公开实施例的功能和使用范围带来任何限制。
如图7所示，电子设备700可以包括处理装置(例如中央处理器、图形处理器等)710，其可以根据存储在只读存储器(ROM)720中的程序或者从存储装置780加载到随机访问存储器(RAM)730中的程序而执行各种适当的动作和处理。在RAM 730中，还存储有电子设备700操作所需的各种程序和数据。处理装置710、ROM 720以及RAM730通过总线740彼此相连。输入/输出(I/O)接口750也连接至总线740。
通常，以下装置可以连接至I/O接口750：包括例如触摸屏、触摸板、键盘、鼠标、摄像头、麦克风、加速度计、陀螺仪等的输入装置760；包括例如液晶显示器(LCD)、扬声器、振动器等的输出装置770；包括例如磁带、硬盘等的存储装置780；以及通信装置790。通信装置790可以允许电子设备700与其他电子设备进行无线或有线通信以交换数据。虽然图7示出了具有各种装置的电子设备700，但应理解的是，并不要求实施或具备所有示出的装置，电子设备700可以替代地实施或具备更多或更少的装置。
例如，根据本公开的实施例，上述亮度确定方法可以被实现为计算机软件程序。例如，本公开的实施例包括一种计算机程序产品，其包括承载在非暂态计算机可读介质上的计算机程序，该计算机程序包括用于执行上述亮度确定方法的程序代码。在这样的实施例中，该计算机程序可以通过通信装置790从网络上被下载和安装，或者从存储装置780安装，或者从ROM 720安装。在该计算机程序被处理装置710执行时，可以实现本公开实施例提供的亮度确定方法中限定的功能。
本公开的至少一个实施例还提供了一种计算机可读存储介质，该计算机可读存储介质用于存储非暂时性计算机可读指令，当非暂时性计算机可读指令由计算机执行时可以实现上述的亮度确定方法。在该计算机可读存储介质存储的非暂时性计算机可读指令由计算机执行时可以实现的亮度确定方法中，可以通过在至少部分分段区间中使最高显示亮度随着平均图像电平的升 高而降低的方式，在待显示图像的整体灰阶较高的情况下，可以适当降低待显示图像的整体显示亮度，以降低功耗，避免由于显示画面亮度过高而使功耗过高的问题；在待显示图像的整体灰阶较低时，可以提高待显示图像的整体显示亮度，进而可以增强细节表现，提高对比度，改善显示效果。并且，通过在不同的分段区间中使最高显示亮度具有不同的变化速率的方式，可以实现对亮度的分段调节，进而可以使亮度调节更为灵活。例如，可以根据人眼对亮度变化的敏感程度分为若干段，在不同分段中设定符合人眼观看舒适度的亮度变化速率，这样有助于提升人眼观看的舒适性，实现更好的观看效果。
图8为本公开一些实施例提供的一种计算机可读存储介质的示意图。如图8所示，计算机可读存储介质800用于存储非暂时性计算机可读指令810。例如，当非暂时性计算机可读指令810由计算机执行时可以执行根据上文所述的亮度确定方法中的一个或多个步骤。
例如，计算机可读存储介质800可以为非暂时性计算机可读存储介质。
例如，该计算机可读存储介质800可以应用于上述电子设备600中。例如，计算机可读存储介质800可以为图6所示的电子设备600中的存储器620。例如，关于计算机可读存储介质800的相关说明可以参考图6所示的电子设备600中的存储器620的相应描述，此处不再赘述。
有以下几点需要说明：
(1)本公开实施例附图只涉及到本公开实施例涉及到的结构，其他结构可参考通常设计。
(2)在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (16)

  1. 一种亮度确定方法，用于显示面板，其中，所述显示面板包括多个像素，所述方法包括：
    基于待显示图像，确定所述多个像素分别对应的第一显示亮度；
    基于所述多个像素分别对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平；以及
    基于所述参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示所述待显示图像期间所述显示面板对应的目标最高显示亮度，
    其中，所述平均图像电平对应的取值范围包括至少两个分段区间，所述关系信息包括在所述至少两个分段区间中，所述最高显示亮度随着所述平均图像电平的数值变化信息；在不同的所述分段区间中，所述最高显示亮度随着所述平均图像电平变化的变化速率不同；在至少一个所述分段区间中，所述最高显示亮度随着所述平均图像电平的升高而降低。
  2. 根据权利要求1所述的方法，其中，对于所述至少两个分段区间中的任意两个对比分段区间，所述任意两个对比分段区间包括第一对比分段区间和第二对比分段区间，所述平均图像电平在所述第一对比分段区间中的最大数值小于等于所述平均图像电平在所述第二对比分段区间中的最小数值，
    在所述第一对比分段区间中所述最高显示亮度的变化速度小于等于在所述第二对比分段区间中所述最高显示亮度的变化速度。
  3. 根据权利要求1或2所述的方法，其中，所述平均图像电平对应的取值范围包括最小值、中间值和最大值，所述中间值为所述最大值和所述最小值的平均值，
    位于所述最小值至所述中间值范围内的分段区间的数量大于位于所述中间值至所述最大值范围内的分段区间的数量。
  4. 根据权利要求1至3任一项所述的方法，其中，所述至少两个分段区间包括第一分段区间，
    在所述第一分段区间中，所述最高显示亮度随着所述平均图像电平的变化而保持不变，所述最高显示亮度为预定亮度值。
  5. 根据权利要求4所述的方法，其中，
    所述第一分段区间中所述平均图像电平的数值小于所述至少两个分段区间中除所述第一分段区间之外的其余分段区间中所述平均图像电平的数值。
  6. 根据权利要求5所述的方法，其中，所述至少两个分段区间还包括第二分段区间、第三分段区间和第四分段区间，所述平均图像电平的数值从所述第一分段区间至所述第四分段区间连续并且依次增大，
    在所述第二分段区间中，所述最高显示亮度与所述平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a1-b1*APL)，其中，Lmax为所述最高显示亮度，L为所述预定亮度值，APL为所述平均图像电平，a1和b1为常数；
    在所述第三分段区间中，所述最高显示亮度与所述平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a2*APL 2-b2*APL+c2)，其中，a2、b2和c2为常数；
    在所述第四分段区间中，所述最高显示亮度与所述平均图像电平之间的关系信息表示为关系式：Lmax＝L*(a3-b3*APL)，其中，a3和b3为常数。
  7. 根据权利要求6所述的方法，其中，所述平均图像电平对应的取值范围包括最小值、第一数值、第二数值、第三数值和最大值，其中，所述第一数值、所述第二数值和所述第三数值位于所述最小值和所述最大值之间并且依次增大；
    所述第一分段区间的两个区间端点分别为所述最小值和所述第一数值，所述第二分段区间的两个区间端点分别为所述第一数值和所述第二数值，所述第三分段区间的两个区间端点分别为所述第二数值和所述第三数值，所述第四分段区间的两个区间端点分别为所述第三数值和所述最大值。
  8. 根据权利要求1至7任一项所述的方法，其中，基于所述多个像素的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平，包括：
    根据所述多个像素分别对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平。
  9. 根据权利要求1至7任一项所述的方法，其中，基于所述多个像素的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平，包括：
    确定所述多个像素中的至少一个目标像素；
    根据所述至少一个目标像素对应的第一显示亮度，确定与所述待显示图 像对应的参考平均图像电平。
  10. 根据权利要求9所述的方法，其中，确定所述多个像素中的至少一个目标像素，包括：
    从所述多个像素中筛选出第一显示亮度大于亮度阈值的像素，作为所述至少一个目标像素。
  11. 根据权利要求9所述的方法，其中，确定所述多个像素中的至少一个目标像素，包括：
    基于所述待显示图像，确定所述多个像素分别对应的显示颜色；
    基于所述多个像素分别对应的显示颜色，确定至少一个目标显示颜色，其中，显示每个所述目标显示颜色的像素与所述多个像素之间的比例大于比例阈值；
    从所述多个像素中筛选出与所述目标显示颜色对应的像素，作为所述至少一个目标像素。
  12. 根据权利要求1至11任一项所述的方法，还包括：
    根据所述目标最高显示亮度，确定在显示所述待显示图像期间所述多个像素分别对应的多个第二显示亮度；
    基于所述多个第二显示亮度，呈现所述待显示图像。
  13. 一种亮度确定装置，用于显示面板，其中，所述显示面板包括多个像素，所述亮度确定装置包括：
    第一确定模块，配置为基于待显示图像，确定所述多个像素分别对应的第一显示亮度；
    第二确定模块，配置为基于所述多个像素分别对应的第一显示亮度，确定与所述待显示图像对应的参考平均图像电平；以及
    第三确定模块，配置为基于所述参考平均图像电平和关于平均图像电平与最高显示亮度的关系信息，确定在显示所述待显示图像期间所述显示面板对应的目标最高显示亮度，
    其中，所述平均图像电平对应的取值范围包括至少两个分段区间，所述关系信息包括在所述至少两个分段区间中，所述最高显示亮度随着所述平均图像电平的数值变化信息；在不同的所述分段区间中，所述最高显示亮度随着所述平均图像电平的变化速率不同；在至少一个所述分段区间中，所述最高显示亮度随着所述平均图像电平的升高而降低。
  14. 一种显示面板，包括：
    多个像素；以及
    时序控制器，配置为执行权利要求1-12任一项所述的亮度确定方法。
  15. 一种电子设备，包括：
    处理器；
    存储器，被配置为存储一个或多个计算机程序模块；
    其中，所述一个或多个计算机程序模块被配置为由所述处理器执行，所述一个或多个计算机程序模块包括用于实现权利要求1-12任一项所述的亮度确定方法的指令。
  16. 一种计算机可读存储介质，用于存储非暂时性计算机可读指令，当所述非暂时性计算机可读指令由计算机执行时可以实现权利要求1-12任一项所述的亮度确定方法。
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