Method, apparatus and device for adjusting driving voltage of display panel

Abstract

This application discloses a method, apparatus, and device for adjusting the driving voltage of a display panel. The method includes: determining the color type of an image to be displayed; and adjusting the default driving voltage of the display panel according to the color type of the image, wherein the default driving voltage is different for at least two different color types of images. According to embodiments of this application, even when an image does not contain all colors, the default driving voltage can be adjusted according to the corresponding color type of the image, thereby reducing display power consumption by lowering the driving voltage without affecting the brightness of the light-emitting sub-pixels, ensuring normal image display.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a method, apparatus and device for adjusting the driving voltage of a display panel. Background Technology

[0002] With the continuous development of display panel technology, OLED (Organic Light-Emitting Diode) devices and other light-emitting devices have been gradually applied to various display panel products such as mobile phones, tablets, and laptops.

[0003] However, display panels have the problem of high power consumption. Summary of the Invention

[0004] This application provides a method, apparatus, and device for adjusting the driving voltage of a display panel, which can improve the technical problem of high power consumption of the screen when the default driving voltage is large.

[0005] In a first aspect, embodiments of this application provide a method for adjusting the driving voltage of a display panel, the method comprising:

[0006] Determine the color type of the image to be displayed;

[0007] The default driving voltage of the display panel is adjusted according to the color type of the image. At least two different color types of images have different default driving voltages.

[0008] In some embodiments, different color types of images correspond to different color categories.

[0009] In some embodiments, the default driving voltage corresponding to an image that is pure red, pure blue, or a mixed red and blue image with no green is lower than the default driving voltage corresponding to an image that includes green.

[0010] In some embodiments, the default driving voltage corresponding to a pure red image is greater than or equal to the default driving voltage corresponding to a pure blue image.

[0011] In some embodiments, the power supply of the display panel outputs a default drive voltage to the display panel's driver chip.

[0012] In some embodiments, determining the color type of the image to be displayed includes:

[0013] Obtain the emission ratio of each color's luminous sub-pixel in a single image;

[0014] The color type of the image is determined based on the proportion of light emitted.

[0015] In some embodiments, the light-emitting sub-pixels include red light-emitting sub-pixels, green light-emitting sub-pixels, and blue light-emitting sub-pixels.

[0016] In some embodiments, determining the color type of the image based on the emission ratio includes:

[0017] The image frame is determined to be the first image frame based on the emission ratio; the first image frame is an image frame that lacks at least one color.

[0018] Adjust the default drive voltage of the display panel according to the color type of the image, including:

[0019] When a single image frame is the first image frame, the default driving voltage of the display panel is adjusted according to the missing color and / or the color to be displayed.

[0020] In some embodiments, obtaining the emission ratio of each color's luminous sub-pixel in a single image frame includes:

[0021] Obtain the brightness data of each color's luminous sub-pixels in a single image;

[0022] The number of light emitted by each color sub-pixel is counted based on the brightness data.

[0023] The emission ratio of each color's luminous sub-pixels is calculated based on the number of luminous sub-pixels corresponding to each color.

[0024] In some embodiments, obtaining the brightness data of each color's luminous sub-pixels in a single image frame includes:

[0025] Acquire display data for each light-emitting unit in a single image frame; the light-emitting unit includes light-emitting sub-pixels of at least three different colors;

[0026] The brightness data of each color's luminous sub-pixel is determined based on the display data of each luminous unit;

[0027] Based on the brightness data, the number of light emitted by each color's luminous sub-pixel is counted, including:

[0028] In a single image frame, based on the brightness data of each color of the luminous sub-pixel in each luminous unit, the number of luminous sub-pixels of different colors is accumulated and counted to obtain the number of luminous sub-pixels of each color in a single image frame.

[0029] In some embodiments, adjusting the default driving voltage of the display panel according to the color type of the image includes:

[0030] When a single image frame is the first image frame, the default driving voltage of the display panel is adjusted according to the missing color and / or the color to be displayed in the first image frame, and the first image frame is an image frame that is missing at least one color.

[0031] In some embodiments, when the single image frame is a first image frame, adjusting the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame includes:

[0032] Based on the missing colors in the first image and the first correspondence, the first driving voltage of the display panel corresponding to the first image is determined, where the first correspondence is the correspondence between the missing colors and the driving voltage.

[0033] Alternatively, based on the color to be displayed in the first image and the second correspondence, the first driving voltage of the display panel corresponding to the first image is determined, and the second correspondence is the correspondence between the color to be displayed and the driving voltage.

[0034] The default drive voltage of the display panel will be adjusted to the first drive voltage.

[0035] In some embodiments, determining the first driving voltage of the display panel corresponding to the first image frame based on the missing color of the first image frame and a first correspondence includes:

[0036] When the missing colors in the first image include at least two types, the second driving voltage corresponding to each missing color is determined according to the first correspondence.

[0037] The first driving voltage is determined based on the minimum value of multiple second driving voltages.

[0038] In some embodiments, determining the first driving voltage of the display panel corresponding to the first image frame based on the color to be displayed in the first image frame and the second correspondence includes:

[0039] When the first image frame contains at least two colors to be displayed, the third driving voltage corresponding to each color to be displayed is determined according to the second correspondence.

[0040] The first driving voltage is determined based on the maximum value of multiple third driving voltages.

[0041] In some embodiments, when the single image frame is a first image frame, adjusting the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame includes:

[0042] Based on the missing colors in the first image and the first correspondence, the first driving voltage of the display panel corresponding to the first image is determined, where the first correspondence is the correspondence between the missing colors and the driving voltage.

[0043] Alternatively, based on the color to be displayed in the first image and the second correspondence, the first driving voltage of the display panel corresponding to the first image is determined, and the second correspondence is the correspondence between the color to be displayed and the driving voltage.

[0044] Determine the corresponding first voltage coefficient based on the current brightness level;

[0045] The fifth driving voltage is obtained based on the first voltage coefficient and the first driving voltage;

[0046] The default drive voltage of the display panel will be adjusted to the fifth drive voltage.

[0047] Secondly, embodiments of this application provide a driving voltage adjustment device for a display panel, the device comprising:

[0048] The type determination module is used to determine the color type of the image to be displayed.

[0049] The voltage adjustment module is used to adjust the default driving voltage of the display panel according to the color type of the image. At least two different color types of images have different default driving voltages.

[0050] Thirdly, embodiments of this application provide a driving voltage adjustment device for a display panel, the driving voltage adjustment device for the display panel including: a processor and a memory storing computer program instructions;

[0051] When the processor executes computer program instructions, it implements the display panel driving voltage adjustment method in the above embodiments.

[0052] Fourthly, embodiments of this application provide a computer storage medium storing computer program instructions, which, when executed by a processor, implement the display panel driving voltage adjustment method described in the above embodiments.

[0053] Compared with existing technologies, the display panel driving voltage adjustment method, apparatus, and device provided in this application allow the display panel to determine the color type of the image to be displayed based on the image data. At least two different color types of image frames correspond to different default driving voltages. The default driving voltage provided to the driving chip can be adjusted accordingly based on the color type of the image frame. Taking a display panel including red, green, and blue light-emitting sub-pixels as an example, in order for all three colors of light-emitting sub-pixels to emit light normally, the default driving voltage needs to be set to the minimum driving voltage required for the normal emission of all three colors of light-emitting sub-pixels. When the color type of the image frame does not include all colors, the default driving voltage can be reduced accordingly, thereby reducing display power consumption while ensuring that the light-emitting sub-pixels can still emit light normally. Attached Figure Description

[0054] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a schematic flowchart of a method for adjusting the driving voltage of a display panel according to an embodiment of this application;

[0056] Figure 2 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0057] Figure 3 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0058] Figure 4 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0059] Figure 5 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0060] Figure 6 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0061] Figure 7 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0062] Figure 8This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0063] Figure 9 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0064] Figure 10 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0065] Figure 11 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0066] Figure 12 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0067] Figure 13 This is a flowchart illustrating a method for adjusting the driving voltage of a display panel according to another embodiment of this application;

[0068] Figure 14 A schematic diagram of the structure of a drive voltage adjustment device for a display panel provided in an embodiment of this application;

[0069] Figure 15 This is a schematic diagram of the structure of a drive voltage adjustment device for a display panel provided in an embodiment of this application. Detailed Implementation

[0070] The features and exemplary embodiments of various aspects of this application will be described in detail below. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain this application and not to limit it. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0072] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The embodiments will now be described in detail with reference to the accompanying drawings.

[0073] With the continuous development of display panel technology, OLED (Organic Light-Emitting Diode) devices and other light-emitting devices have been gradually applied to various display panel products such as mobile phones, tablets, and laptops.

[0074] The display panel includes light-emitting sub-pixels of different colors. The power supply of the display panel can provide a default driving voltage AVDD to the driver chip. After receiving the default driving voltage, the driver chip can use it and other relevant voltages to generate various voltages required during the display driving process. For example, the voltages generated by the driver chip using the default driving voltage may include, but are not limited to, one or more of the following voltage signals: the high-level active signal VGH of the scan signal, the two reference levels VGSP and VGMP of the data signal, the initialization voltage Vref, and the digital voltage signal OVDD.

[0075] To ensure the overall display effect of a display panel, the default drive voltage should typically be increased as much as possible. This ensures that the voltage signals generated by the driver chip using the default drive voltage are sufficient to meet the minimum requirements of various voltage signals during display driving. However, providing a high default drive voltage for an extended period will result in high power consumption of the display panel.

[0076] To address the aforementioned technical problems, embodiments of this application provide a method, apparatus, and device for adjusting the driving voltage of a display panel. The method for adjusting the driving voltage of a display panel provided in this application embodiment will be described first below.

[0077] Figure 1A schematic flowchart of a method for adjusting the driving voltage of a display panel according to an embodiment of this application is shown. The method for adjusting the driving voltage of the display panel includes:

[0078] S110, Determine the color type of the image to be displayed;

[0079] S120 adjusts the default driving voltage of the display panel according to the color type of the image, and the default driving voltage is different for at least two different color types of images.

[0080] The display panel driving voltage adjustment method provided in this embodiment can be applied to a display panel driving voltage adjustment device. This device can adjust the default driving voltage according to the color type of the image to be displayed, thereby reducing the default driving voltage AVDD and saving display power consumption without affecting the normal emission of the light-emitting sub-pixels corresponding to the non-missing (i.e., needing to emit light) light-emitting sub-pixels. The display panel can be a PC, television, smart terminal, or tablet computer, etc. This embodiment does not limit the specific form of the display panel. The sub-pixels of the display panel correspond to the sub-pixels of the displayed image.

[0081] In this embodiment, the display panel can determine the color type of the image to be displayed based on the image data of the image to be displayed. At least two different color types of image images correspond to different default driving voltages. The default driving voltage provided to the driving chip can be adjusted accordingly based on the color type of the image. Taking a display panel including red, green, and blue light-emitting sub-pixels as an example, in order for all three colors of light-emitting sub-pixels to emit light normally, the default driving voltage needs to be set to the minimum driving voltage required for the normal emission of all three colors of light-emitting sub-pixels. When the color type of the image does not include all colors, the default driving voltage can be reduced accordingly, so as to reduce display power consumption by reducing the driving voltage while ensuring that the light-emitting sub-pixels that need to emit light can still emit light normally.

[0082] In S110, the display panel can determine the color type of the image to be displayed based on the image data of the image to be displayed.

[0083] Display panels typically include light-emitting sub-pixels with different light-emitting colors. For example, they may include three light-emitting sub-pixels: red, green, and blue; or four light-emitting sub-pixels: red, green, blue, and white; or four light-emitting sub-pixels: red, green, blue, and yellow. There are no restrictions on the color categories of the light-emitting sub-pixels.

[0084] Based on the image data of the image to be displayed, the display panel can determine the light-emitting colors of the light-emitting sub-pixels that need to emit light in the image, and determine the color type of the image based on the light-emitting colors of the sub-pixels. For example, if the display panel determines, based on the brightness data of the image to be displayed, that only red light-emitting sub-pixels need to emit light, and the other light-emitting sub-pixels do not need to emit light, or that the other light-emitting sub-pixels are all 0 grayscale, then the display panel can determine that the color type of the image is a pure red image. Similarly, the color type of the image can also be a pure blue image, a pure green image, an image with two mixed colors, an image with three mixed colors, and so on.

[0085] As an optional embodiment, the different color types of the images described above correspond to different color categories.

[0086] For example, when the color type of an image is pure red, the corresponding color category is red; when the color type of an image is a mixture of red and blue, the corresponding color categories are red and blue. That is, when two images correspond to different color types, the two images do not contain the same colors.

[0087] Please refer to Figure 2 As an optional embodiment, the above-described S110 may include:

[0088] S210, obtain the emission ratio of each color luminous sub-pixel in a single image;

[0089] S220, determines the color type of the image based on the light emission ratio;

[0090] In this embodiment, the device can count the luminous sub-pixels in the image to be displayed according to their colors to obtain the luminous ratio of each color of the luminous sub-pixels, and determine the color type of the image based on the luminous ratio.

[0091] In S210, the display panel can determine the light emission ratio of each color sub-pixel in a single image frame based on the image data of the image frame to be displayed.

[0092] As an optional implementation, the emission ratio can be determined by determining the emission brightness of each emission sub-pixel based on image data, and then determining whether each emission sub-pixel is in an emission state based on the magnitude of its emission brightness relative to an emission threshold. For example, if the emission brightness of a certain emission sub-pixel in a single image frame is higher than the emission threshold, then the emission sub-pixel can be determined to be in an emission state in that image frame. Conversely, if its emission brightness is lower than the emission threshold, then the emission sub-pixel is determined to be in a non-emission state.

[0093] After determining the illumination state of each luminous sub-pixel based on the image data, the luminous sub-pixels in the illumination state can be counted according to different colors to obtain the number of luminous sub-pixels of each color in the image. Based on the number of luminous sub-pixels of each color and the total number of luminous sub-pixels in the illumination state, the illumination ratio of each color of luminous sub-pixels can be calculated.

[0094] Please refer to Figure 3 As an optional embodiment, the above-described S210 may include:

[0095] S310, acquire the brightness data of each color luminous sub-pixel in a single image frame;

[0096] S320: Based on the brightness data, the number of light emitted by each light-emitting sub-pixel of different colors is counted.

[0097] S330 calculates the emission ratio of each color's luminous sub-pixels based on the number of luminous sub-pixels corresponding to each color.

[0098] In this embodiment, the display panel can determine the brightness data of each luminous sub-pixel based on the image data of the image frame, and determine whether each luminous sub-pixel is in a luminous state in the image frame based on whether the brightness data meets the luminous threshold. After counting the number of luminous sub-pixels of each color in the image frame, the luminous ratio of each color's luminous sub-pixels can be calculated based on the number of luminous sub-pixels of each color and the total number of luminous sub-pixels.

[0099] In S310, before displaying a single image frame, the display panel needs to acquire the image data of the image frame. Based on this image data, the brightness data of each color's luminous sub-pixel can be determined.

[0100] In S320, within a single image frame, the brightness data of each color's luminous sub-pixels are traversed. The brightness data can be divided according to the color of the luminous sub-pixels to obtain the number of brightness data that reach the luminous threshold for each color, thereby determining the number of luminous sub-pixels corresponding to each color.

[0101] Taking red luminescent sub-pixels as an example, in a single image frame, based on the brightness data of each red luminescent sub-pixel, the number of red luminescent sub-pixels whose brightness data reaches the luminescence threshold can be determined, that is, the number of red luminescent sub-pixels emitting light in that image frame. Similarly, the number of green and blue luminescent sub-pixels emitting light in that image frame can also be determined separately.

[0102] In one optional implementation, the driver chip of the display panel typically includes an IRDrop compensation circuit. This IRDrop compensation circuit acquires the brightness data of each luminous sub-pixel and performs corresponding voltage compensation. In the above implementation, the IRDrop compensation circuit can acquire the brightness data of luminous sub-pixels of each color and count the number of light emitted by each color sub-pixel.

[0103] It should be noted that the IRDrop compensation circuit can only count and statistically analyze the number of light emitted by each color of the light-emitting sub-pixel and send it to the driver chip. After receiving the number of light emitted by each color of the light-emitting sub-pixel, the driver chip can calculate the light emission ratio of each color of the light-emitting sub-pixel based on the number of light emitted by each color of the light-emitting sub-pixel and the total number of light emitted.

[0104] In one exemplary embodiment, the display panel includes multiple IRDrop compensation circuits. The display area of ​​the display panel comprises multiple sub-regions. Each IRDrop compensation circuit processes the brightness data to be displayed in its corresponding sub-region to obtain the brightness data of each color's luminous sub-pixels within that sub-region, and calculates the luminous quantity corresponding to each color's luminous sub-pixels within that sub-region based on a luminous threshold. After obtaining the luminous quantity corresponding to each color's luminous sub-pixels calculated by each IRDrop compensation circuit, the driver chip adds up the luminous quantity calculated by multiple IRDrop compensation circuits for each color's luminous sub-pixels to obtain the luminous quantity of each color's luminous sub-pixels in the entire display area of ​​the display panel.

[0105] In S330, after determining the number of light emitted by each color sub-pixel in a single image frame, the light emission ratio of each color sub-pixel can be determined based on the number of light emitted.

[0106] The emission ratio of each color's luminous subpixels can be calculated based on the emission quantity of each color's luminous subpixels and the total emission quantity of all luminous subpixels. For example, if the emission quantities of red, green, and blue luminous subpixels in a single image are 1000, 0, and 0 respectively, then the emission ratios of red, green, and blue luminous subpixels are 100%, 0%, and 0% respectively. If the emission quantities of red, green, and blue luminous subpixels in a single image are 1000, 0, and 500 respectively, then the emission ratios of red, green, and blue luminous subpixels are 66.7%, 0%, and 33.3% respectively.

[0107] Please refer to Figure 4 As an optional embodiment, the above-described S310 may include:

[0108] S410, acquire display data of each light-emitting unit in a single image frame; the light-emitting unit includes light-emitting sub-pixels of at least three different colors;

[0109] S420 determines the brightness data of each color's light-emitting sub-pixel based on the display data of each light-emitting unit;

[0110] The aforementioned S320 may include:

[0111] S430: In a single image frame, based on the brightness data of each color of the light-emitting sub-pixel in each light-emitting unit, the number of light-emitting sub-pixels of different colors is accumulated and counted to obtain the number of light-emitting sub-pixels of each color in a single image frame.

[0112] In this embodiment, the display panel can acquire display data for each light-emitting unit based on image data, on a unit-by-unit basis. The display data for each light-emitting unit includes the brightness data of the light-emitting sub-pixels of each color in the light-emitting unit. By accumulating and statistically analyzing the brightness data of the light-emitting sub-pixels of different colors in each light-emitting unit, the number of light-emitting sub-pixels of each color can be obtained.

[0113] In S410, the image data of a single image frame can be composed of the display data of each light-emitting unit.

[0114] The display panel may include multiple light-emitting units, each of which includes light-emitting sub-pixels of each color of the display panel. When the display panel includes red, green, and blue light-emitting sub-pixels, each light-emitting unit includes light-emitting sub-pixels of these three different colors, and there are at least one light-emitting sub-pixel of each color. When the display panel includes red, green, blue, and white, or red, green, blue, and yellow light-emitting sub-pixels, each light-emitting unit includes light-emitting sub-pixels of these four different colors, and there are at least one light-emitting sub-pixel of each color. Furthermore, the light-emitting unit may also contain two or more light-emitting sub-pixels of the same color. For example, the light-emitting unit may also include RGBG light-emitting sub-pixels, that is, one red and one blue light-emitting sub-pixel, and two green light-emitting sub-pixels. The light-emitting unit may be a pixel repeating unit.

[0115] In S420, after determining the display data of a certain light-emitting unit based on the image data of the image frame, the brightness data of each color light-emitting sub-pixel can be determined based on the data at different positions in the display data. For example, the display data of the light-emitting unit can be a single data frame, and the brightness data corresponding to each color light-emitting sub-pixel is located at different positions in the single data frame. The brightness data corresponding to each color light-emitting sub-pixel can be obtained by reading the data frame.

[0116] In S430, based on the image data of a single image frame, the brightness data of each color's luminous sub-pixel in each luminous unit can be determined, and the total number of luminous sub-pixels of each color is accumulated and statistically analyzed based on the brightness data. The total number of luminous sub-pixels is the number of luminous sub-pixels of the corresponding color in the image frame.

[0117] Taking a specific light-emitting unit as an example, in the brightness data of the red, green, and blue colors corresponding to this unit, the brightness data of the red light-emitting sub-pixel is greater than the light emission threshold, while the brightness data of the blue and green light-emitting sub-pixels are less than the light emission threshold. That is, the number of red light-emitting sub-pixels emitting light in this unit is 1, and the number of blue and green light-emitting sub-pixels emitting light is 0. Before accumulating the brightness data of each color's light-emitting sub-pixels in this unit, the total number of light-emitting sub-pixels emitting light for the three colors is 1000, 0, and 0, respectively. After accumulating the brightness data of each color's light-emitting sub-pixels in this unit, the total number of light-emitting sub-pixels emitting light for the three colors is 1001, 0, and 0, respectively.

[0118] In S220, after determining the light emission ratio of each color sub-pixel in the image to be displayed, the color type of the image can be determined based on the light emission ratio.

[0119] The color type of the aforementioned image can be a solid color image, such as a pure red image, a pure blue image, a pure green image, etc., or a mixed image, such as a red and blue mixed image with missing green, a red and green mixed image with missing blue, a blue and green mixed image with missing red, etc., or a mixed image of multiple colors, without any restrictions.

[0120] One way to determine the color type of an image based on the emission ratio is to determine whether the emission ratio of any one color's luminous sub-pixels exceeds a shading ratio threshold. For example, if the emission ratio of green luminous sub-pixels exceeds the shading ratio threshold, it can be determined that the image contains at least green. By comparing the luminous sub-pixels of each color, the total number of colors included in the image can be determined, thus defining the image's color type. For instance, if the emission ratios of red, green, and blue luminous sub-pixels in an image are 100%, 0%, and 0% respectively, it can be determined that the image contains red, and the color type is a pure red image. If the emission ratios of red, green, and blue luminous sub-pixels are 50%, 50%, and 0% respectively, it can be determined that the image contains red and blue, and the color type is a red-blue mixture lacking green.

[0121] In another implementation, determining the color type of an image based on the emission ratio of each color's luminous sub-pixels can also involve determining whether the emission ratio of any color's luminous sub-pixels is below a missing color ratio threshold. For example, if the emission ratio of a green luminous sub-pixel is below the missing color ratio threshold, it can be determined that the image is missing green. By comparing the luminous sub-pixels of each color, the missing color in the image can be determined. For example, if the image includes red, green, and blue luminous sub-pixels, and the image is missing green, the color type of the image can be determined to be a red-blue mixed image missing green; if the image is missing both blue and green, the color type of the image can be determined to be a pure red image. For example, if the emission ratios of red, green, and blue luminous sub-pixels are 100%, 0%, and 0% respectively, the image is missing green and blue.

[0122] As an optional embodiment, the light-emitting sub-pixels of the display panel may include red light-emitting sub-pixels, green light-emitting sub-pixels, and blue light-emitting sub-pixels.

[0123] The default driving voltage for images that are pure red, pure blue, or a mixture of red and blue with no green is lower than the default driving voltage for images that include green. In other words, when the image is pure green or a mixture containing green, the default driving voltage supplied to the display panel's driver chip is higher. Conversely, when the image is pure red, pure blue, or a mixture of red and blue with no green, the default driving voltage supplied to the display panel's driver chip is lower. Therefore, when the color type of the image to be displayed changes from an image containing green to an image without green, the default driving voltage supplied to the driver chip can be reduced accordingly to minimize power loss from maintaining the default driving voltage.

[0124] As an optional embodiment, the above-described S220 may include:

[0125] S510, determine whether the image screen is the first image screen based on the light emission ratio; the first image screen is an image screen that lacks at least one color;

[0126] In this embodiment, after determining the emission ratio of each color's luminous sub-pixel in the image to be displayed, it can be determined whether the image is a first image based on the emission ratio. The first image can be an image missing at least one color. For example, taking a display panel including red, green, and blue luminous sub-pixels as an example, the first image can be an image missing green, a blue image, or a red image.

[0127] It should be noted that the first image can be a monochrome image or an image formed by mixing multiple colors other than the missing color. For example, when the first image is missing green, the first image can be a pure red image, a pure blue image, or an image formed by mixing red and blue.

[0128] One way to determine whether an image is the first image based on the emission ratio is to determine whether there is a color whose emission ratio is below a certain threshold. For example, if the emission ratio of the green emission sub-pixel is below the threshold of 1%, the image can be determined to be the first image lacking green. Similarly, if the emission ratios of the red, green, and blue emission sub-pixels are 100%, 0%, and 0% respectively, the image is the first image lacking green and blue, i.e., a pure red image.

[0129] As an optional embodiment, the above-described S120 may include:

[0130] S520, when a single image frame is the first image frame, adjusts the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame, so that the first image frame is an image frame missing at least one color.

[0131] In this embodiment, the display panel can adjust the default driving voltage of the light-emitting sub-pixels based on the missing color and / or the color to be displayed in the first image. Taking a display panel with red, green, and blue light-emitting sub-pixels as an example, in order for all three colors of light-emitting sub-pixels to emit light normally, the default driving voltage needs to be set to the minimum driving voltage required for the normal emission of the light-emitting sub-pixels of all three colors. When at least one color is missing in the first image, the default driving voltage can be set to the minimum driving voltage required for the normal emission of the light-emitting sub-pixels of the remaining two colors or the remaining color. That is, when a certain color is missing in the first image, the default driving voltage can be reduced accordingly, so that the light-emitting sub-pixels that are emitting light can still emit light normally and the display effect meets the requirements, while reducing the display power consumption by reducing the driving voltage.

[0132] In S520, when the single image frame to be displayed is determined to be the first image frame, the display panel can adjust the default driving voltage of the light-emitting sub-pixels according to the missing color and / or the color to be displayed in the first image frame, so that the adjusted driving voltage can meet the driving voltage requirements of the light-emitting sub-pixels of the color to be displayed in the first image frame.

[0133] Taking a display panel containing red, green, and blue light-emitting sub-pixels as an example, the power supply of the display panel can provide a default driving voltage AVDD to the driver chip. The driver chip can generate other voltages required during the display driving process based on this default driving voltage. For example, the voltages generated by the driver chip using the default driving voltage may include, but are not limited to, one or more of the following voltage signals: the high-level active signal VGH of the scan signal, the two reference levels VGSP (lower limit voltage value) and VGMP (upper limit voltage value) of the data signal, the initialization voltage Vref, and the digital voltage signal OVDD.

[0134] Take a display panel with red, green, and blue light-emitting sub-pixels as an example. Typically, the voltage signals required for different light-emitting sub-pixels to emit light within their normal brightness range may be the same or different.

[0135] The same voltage signal received by light-emitting sub-pixels of different emitting colors can be a high-level signal of the scan signal. For example, the pixel circuits of light-emitting sub-pixels of different emitting colors all include data writing transistors, and the high-level signal of the scan signal provided by the driver chip for the data writing transistors of different colored light-emitting sub-pixels is usually the same.

[0136] The different voltage signals received by emitting sub-pixels of different colors can be the initialization signal Vref of the anode of the emitting element or two reference levels VGSP and VGMP of the data signal. For example, the voltage required to initialize the anode of the emitting element of different colored emitting sub-pixels may not be the same; the voltage range of the data signal corresponding to different colored emitting sub-pixels may also be different, resulting in the reference levels VGSP and VGMP corresponding to different colored emitting sub-pixels not being completely consistent.

[0137] Because the driver chip needs to consider the normal light emission requirements of each color's luminous sub-pixels when generating initialization signals, data signal reference levels, and other relevant voltages required during the display driving process based on the default drive voltage, the minimum value of the default drive voltage should at least meet the requirements of the data signal voltage range and the initialization signal voltage requirements for each color's luminous sub-pixels. That is, when different color luminous sub-pixels correspond to different data signal reference levels VGSP and VGMP, the minimum value of the default drive voltage is affected by the largest VGMP. For example, when the data signal reference level VGMPg corresponding to the green luminous sub-pixel is greater than the data signal reference level VGMPr corresponding to the red luminous sub-pixel and the data signal reference level VGMPb corresponding to the blue luminous sub-pixel, the minimum value of the default drive voltage depends on the green VGMPg. Similarly, when the initialization signal voltage required by the anode of the luminous element of different color luminous sub-pixels is inconsistent, the minimum value of the default drive voltage also depends on the largest voltage among multiple initialization signals.

[0138] As the above analysis shows, when all the light-emitting sub-pixels of each color in the image to be displayed emit light, the default driving voltage needs to meet the normal emission requirements of all the light-emitting sub-pixels of all colors. However, when the image to be displayed contains missing colors, or when the image does not contain all the colors to be displayed, the default driving voltage only needs to meet the normal emission requirements of some of the light-emitting sub-pixels of certain colors. Therefore, when the display panel displays the first image, the required default driving voltage is lower than the default driving voltage for a normal image (an image without missing colors).

[0139] Taking a display panel with red, green, and blue light-emitting sub-pixels as an example, when the display panel displays a first image, since the first image is missing at least one color, the default driving voltage only needs to meet the normal light-emitting requirements of two colors of the light-emitting sub-pixels or the normal light-emitting requirements of one color of the light-emitting sub-pixels when displaying the first image. Based on the missing color and / or the color to be displayed in the first image, the voltage drop of the default driving voltage compared to the default driving voltage under a normal image can be determined when meeting the normal light-emitting requirements of the light-emitting sub-pixels of that color.

[0140] Based on the missing colors in the first image, the default driving voltage supplied to the driver chip of the display panel can be reduced accordingly without affecting the brightness of each light-emitting sub-pixel in the first image. Since the default driving voltage provided by the display panel under the first image is lower than the default driving voltage provided under a normal image (an image without missing colors), but the display effect is unaffected, reducing the default driving voltage can reduce display power consumption when displaying the first image. However, the default driving voltage cannot be continuously reduced; otherwise, the display effect requirements cannot be met, or it may trigger other compensation functions within the power supply, leading to increased power consumption.

[0141] Please refer to Figures 5 to 7 As an optional embodiment, the above-described S520 may include:

[0142] S610, based on the missing colors of the first image and the first correspondence, determine the first driving voltage of the display panel corresponding to the first image; the first correspondence is the correspondence between the missing colors and the driving voltage.

[0143] Alternatively, S620, based on the color to be displayed in the first image and the second correspondence, determine the first driving voltage of the display panel corresponding to the first image, whereby the second correspondence is the correspondence between the color to be displayed and the driving voltage.

[0144] S630 will adjust the default drive voltage of the display panel to the first drive voltage.

[0145] In this embodiment, the display panel can determine the first driving voltage corresponding to the first image frame based on the missing color in the first image frame, and adjust the default driving voltage to the first driving voltage. The display panel can also determine the first driving voltage corresponding to the first image frame based on the color to be displayed in the first image frame. Under the first driving voltage, the driving chip can meet the normal light emission requirements of the light-emitting sub-pixels without missing colors, without affecting the brightness of the light-emitting sub-pixels without missing colors. Adjusting the default driving voltage to the first driving voltage will not affect the display effect of the first image frame, and can reduce display power consumption by reducing the voltage amplitude of the driving voltage.

[0146] In S610, when determining the first driving voltage, the first driving voltage may be determined based on the missing color of the first image frame.

[0147] The method for determining the first driving voltage based on the missing color in the first image frame can be as follows: After determining the missing color in the first image frame, the corresponding first driving voltage can be determined based on the missing color and a first correspondence relationship. This first correspondence relationship is the relationship between the missing color and the driving voltage. For example, when the missing color is green, the corresponding first driving voltage is Vg; when the missing color is red, the corresponding first driving voltage is Vr; and when the missing color is blue, the corresponding first driving voltage is Vb.

[0148] Taking red, green, and blue light-emitting elements as an example, when the first image is missing green, it can be displayed by only red and blue light-emitting sub-pixels. As long as the default driving voltage provided by the display panel can meet the normal light-emitting requirements of the red and blue light-emitting sub-pixels, the red and blue light-emitting sub-pixels can be guaranteed to emit light normally to display the first image. That is, when the first image is missing green, the provided first driving voltage can satisfy the following formula:

[0149] Vg≥max{V1、V3};

[0150] Wherein, Vg is the first driving voltage provided to the display panel when the first image is missing green, V1 is the minimum driving voltage required by the driving chip when the display panel normally displays a pure red image, and V3 is the minimum driving voltage required by the driving chip when the display panel normally displays a pure blue image.

[0151] Similarly, when the first image is missing red, the display panel can determine the first driving voltage Vr as follows:

[0152] Vr ≥ max{V2, V3};

[0153] V2 is the minimum driving voltage required by the driver chip when the display panel normally displays a pure green image.

[0154] When the first image lacks blue, the display panel can determine that the first driving voltage Vb is:

[0155] Vb≥max{V1、V2}.

[0156] Because the minimum driving voltage required for normal illumination by different colored sub-pixels may be the same or different, there may be situations where the default driving voltage remains unchanged during the actual voltage reduction process. For example, when V1, V2, and V3 are all different, in order to achieve the illumination brightness requirements of a normal image (an image without missing colors), the default driving voltage Vd should not be less than the maximum value among V1, V2, and V3. Assuming the order of V1, V2, and V3 is V2 > V1 > V3, then the minimum value within the voltage range of the default driving voltage under normal image conditions is V2.

[0157] Based on the aforementioned method for determining the first driving voltage, it can be seen that when the first image lacks red, the minimum value of the first driving voltage Vr is V2; when the first image lacks blue, the minimum value of the first driving voltage Vb is also V2. In other words, when the first image contains green, the default driving voltage Vd cannot be reduced. That is, when the minimum driving voltage V2 required for normal emission of the green luminous sub-pixels is the maximum value among V1, V2, and V3, the minimum value of the first driving voltage Vg is V1. By reducing the default driving voltage AVDD to the first driving voltage Vg, the display power consumption can be reduced without affecting the normal emission of the red and blue luminous sub-pixels. For example, when the image changes from a pure green image or an image containing green to a pure red image, or a pure blue image, or an image with a mixture of red and blue and missing green, the default driving voltage AVDD will decrease from V2 to V1 or V3, thereby reducing the display power consumption by lowering the default driving voltage. However, when the first image is missing a color that is red or blue, the default drive voltage AVDD cannot be reduced, so the display power consumption cannot be reduced by lowering the default drive voltage.

[0158] In S620, the aforementioned first driving voltage can also be determined based on the color to be displayed in the first image. For example, during the brightness test of the display panel, the default driving voltage can be adjusted for different colors to be displayed, and the corresponding first driving voltages for different colors to be displayed can be determined without affecting the display effect of the first image. For example, when the display panel includes red, green, and blue light-emitting sub-pixels, the default driving voltages corresponding to pure red, pure green, pure blue, red-blue mixture, red-green mixture, and blue-green mixture to be displayed can be determined respectively, and a second correspondence between the colors to be displayed and the default driving voltages can be generated.

[0159] In the actual display process, after determining the first image screen to be displayed based on the image data of the image screen to be displayed, and determining the color to be displayed of the first image screen, the driving voltage corresponding to the color to be displayed can be read according to the second correspondence, and the read driving voltage can be used as the first driving voltage.

[0160] In S630, after determining the first driving voltage corresponding to the first image frame, the display panel can reduce the default driving voltage provided to the driving chip of the display panel to the first driving voltage when displaying the image frame, so as to reduce the display power consumption of the display panel.

[0161] Please refer to Figure 8 and Figure 10 As an optional embodiment, the above-described S610 may include:

[0162] S710, if the missing colors in the first image include at least two types, determine the second driving voltage corresponding to each missing color according to the first correspondence;

[0163] S720 determines the first drive voltage based on the minimum value of a plurality of second drive voltages.

[0164] In this embodiment, when the first image includes at least two missing colors, a second driving voltage corresponding to each missing color can be determined according to a first correspondence, and the minimum value among multiple second driving voltages can be determined as the first driving voltage. It is understood that for any color that is not missing, any second driving voltage can meet the normal light emission requirements of that color. For example, when the first image is missing blue and green, the second driving voltage corresponding to the missing blue and the second driving voltage corresponding to the missing green can be determined according to the first correspondence. Since the second driving voltage corresponding to the missing blue can meet the normal light emission requirements of the red light-emitting sub-pixel, and the second driving voltage corresponding to the missing green can also meet the normal light emission requirements of the red light-emitting sub-pixel, in order to reduce the display power consumption of the display panel, the minimum second driving voltage can be selected as the first driving voltage.

[0165] In S710, when the missing color in the first image includes two colors, the second driving voltage corresponding to each missing color can be determined according to the first correspondence. Taking a display panel including red, green, and blue light-emitting sub-pixels as an example, when the first image is missing green and blue, the second driving voltage Vg corresponding to the missing green and the second driving voltage Vb corresponding to the missing blue can be determined according to the first correspondence.

[0166] In S720, after determining the second driving voltage corresponding to each missing color, the first driving voltage can be determined from the minimum value of multiple second driving voltages. That is, when displaying two or more missing colors, the second driving voltage corresponding to each missing color can be determined, and the minimum value of multiple second driving voltages can be used as the first driving voltage.

[0167] After determining the second driving voltage Vg corresponding to the absence of green and blue in the first image and the second driving voltage Vb corresponding to the absence of blue, the smaller value min{Vg, Vb} between the second driving voltage Vg and the second driving voltage Vb can be used as the first driving voltage.

[0168] It should be noted that when the display panel includes luminous sub-pixels of three colors, if the first image is missing two colors, then the first image is a solid color image of the third color. When the display panel includes luminous sub-pixels of four or more colors, if the first image is missing two colors, then the first image may be a solid color image or an image composed of at least two colors.

[0169] Please continue to refer to Figure 9 and Figure 10 As an optional embodiment, the above-described S620 may include:

[0170] S730, when the colors to be displayed in the first image frame include at least two, determines the third driving voltage corresponding to each color to be displayed according to the second correspondence;

[0171] S740 determines the first drive voltage based on the maximum value of multiple third drive voltages.

[0172] In this embodiment, when the first image contains at least two colors to be displayed, the third driving voltage corresponding to each color can be determined according to the second correspondence, and the maximum value among the multiple third driving voltages is determined as the first driving voltage. It is understood that for a certain color to be displayed, as long as the driving voltage reaches the third driving voltage corresponding to that color, normal display of that color can be guaranteed. When there are multiple colors to be displayed, the driving voltage should satisfy the third driving voltage corresponding to each color. That is, in order to reduce the display power consumption of the display panel, the minimum voltage value of the first driving voltage should be the maximum value of the multiple third driving voltages.

[0173] In S730, when the first image screen contains two colors to be displayed, the third driving voltage corresponding to each color to be displayed can be determined according to the second correspondence. Taking a display panel containing red, green, and blue light-emitting sub-pixels as an example, when the first image screen contains green and blue, the third driving voltage corresponding to the green color to be displayed and the third driving voltage corresponding to the blue color to be displayed can be determined according to the second correspondence.

[0174] In S740, after determining the third driving voltage corresponding to each color to be displayed, the first driving voltage can be determined from the maximum value of multiple third driving voltages. That is, when there are two or more colors to be displayed, the third driving voltage corresponding to each color to be displayed can be determined, and the maximum value of multiple third driving voltages can be used as the first driving voltage.

[0175] The colors to be displayed in the first image frame include green and blue. After determining the third driving voltage corresponding to the color to be displayed as green and the third driving voltage corresponding to the color to be displayed as blue, the larger of the two third driving voltages can be used as the first driving voltage.

[0176] It should be noted that when the display panel includes light-emitting sub-pixels of three or more colors, if the color to be displayed in the first image is only one, then the first image is a solid color image corresponding to the color to be displayed.

[0177] Please refer to Figures 11 to 13 As an optional embodiment, the above-described S520 may include:

[0178] S810, based on the missing colors of the first image and the first correspondence, determine the first driving voltage of the display panel corresponding to the first image; the first correspondence is the correspondence between the missing colors and the driving voltage.

[0179] Alternatively, S820, based on the color to be displayed in the first image and the second correspondence, determine the first driving voltage of the display panel corresponding to the first image, whereby the second correspondence is the correspondence between the color to be displayed and the driving voltage.

[0180] S830 determines the corresponding first voltage coefficient based on the current brightness level;

[0181] S840, based on the first voltage coefficient and the first driving voltage, obtains the fifth driving voltage;

[0182] S850 will adjust the default drive voltage of the display panel to the fifth drive voltage.

[0183] In this embodiment, the display panel can determine the first driving voltage corresponding to the first image based on the missing or to-be-displayed color of the first image. A first voltage coefficient can be determined based on the current brightness level, and a fifth driving voltage can be obtained based on the first voltage coefficient and the first driving voltage. Under this lower fifth driving voltage, the light-emitting sub-pixels that do not have missing colors can still meet the brightness requirements, thereby further reducing the driving voltage and reducing display power consumption without affecting the display effect of the first image.

[0184] S810 is completely identical to S610 in the above embodiment, and S820 is completely identical to S620 in the above embodiment, so they will not be described again here.

[0185] In the S830, the display panel can obtain the current brightness level and determine the corresponding first voltage coefficient based on the current brightness level. This first voltage coefficient can be positively correlated with the maximum brightness value corresponding to the brightness level. The higher the brightness level, the greater the brightness at the same grayscale.

[0186] Display panels can include HDR (High Dynamic Range Imaging), HBM (High Brightness Monitor), and multiple Normal brightness levels. The maximum brightness value under the Gamma band differs for each target brightness level. For example, under HDR and HBM brightness levels, each luminous sub-pixel has a higher brightness value at its maximum grayscale. For instance, the brightness value of the display panel at the highest grayscale of the HDR brightness level can reach 1000 nits or more, while the brightness value of the display panel at the HBM brightness level can reach 700 nits or more. The multiple Normal brightness levels can correspond to 460 nits, 300 nits, 120 nits, 60 nits, 20 nits, 10 nits, 6 nits, or other luminous brightness levels, without limitation.

[0187] When the maximum brightness value corresponding to the current brightness level of the display panel is high, in order to ensure that the voltage variation range of the data signal corresponds to a larger brightness variation range, the reference levels VGSP and VGMP generated by the driver chip should correspond to a larger voltage range, resulting in a larger voltage difference between VGSP and VGMP. Conversely, when the maximum brightness value corresponding to the current brightness level is low, the voltage variation range of the data signal corresponds to a smaller brightness variation range. Therefore, the adjustable range of the data signal can be reduced accordingly, meaning the voltage difference between the reference levels VGSP and VGMP can be decreased. When the reference levels VGSP and VGMP change, the default driving voltage used to generate these levels can also be reduced accordingly to decrease the power consumed in maintaining the default driving voltage, thereby reducing the driving power consumption of the display panel.

[0188] It is understandable that the correspondence between the above brightness levels and the second voltage coefficient can also be stored in the drive voltage adjustment module through initialization storage or OTP (One-Time Programmable) burning.

[0189] In S840, after determining the corresponding first voltage coefficient based on the current brightness level, the product of the first voltage coefficient and the first driving voltage can be calculated to obtain the fifth driving voltage.

[0190] In the S850, after the display panel determines the fifth driving voltage corresponding to the first image frame, it can adjust the default driving voltage of the driving chip provided to the display panel to the fifth driving voltage when displaying the image frame, so as to reduce the display power consumption of the display panel.

[0191] This application embodiment also provides a display panel driving voltage adjustment device 800, such as... Figure 14 As shown, the device includes:

[0192] The type determination module 801 is used to determine the color type of the image to be displayed.

[0193] The voltage adjustment module 802 is used to adjust the default driving voltage of the display panel according to the color type of the image. At least two different color types of images have different default driving voltages.

[0194] As one implementation of this application, the type determination module 801 described above may include:

[0195] The ratio acquisition submodule is used to obtain the emission ratio of each color luminous sub-pixel in a single image.

[0196] The type determination submodule is used to determine the color type of the image based on the emission ratio.

[0197] As one implementation of this application, the aforementioned ratio acquisition submodule may include:

[0198] The first determination unit is used to determine whether the image screen is the first image screen based on the light emission ratio; the first image screen is an image screen that lacks at least one color.

[0199] The voltage adjustment module 802 mentioned above may include:

[0200] The voltage adjustment submodule is used to adjust the default drive voltage of the display panel based on the missing color and / or the color to be displayed when the single image frame is the first image frame.

[0201] As one implementation of this application, the aforementioned ratio acquisition submodule may include:

[0202] The brightness acquisition unit is used to acquire the brightness data of each color luminous sub-pixel in a single image frame;

[0203] The statistics unit is used to count the number of light emitted by each light-emitting sub-pixel of different colors based on the brightness data.

[0204] The ratio calculation unit is used to calculate the emission ratio of each color's luminous sub-pixels based on the number of luminous sub-pixels corresponding to each color.

[0205] As one implementation of this application, the brightness acquisition unit may include:

[0206] A brightness acquisition subunit is used to acquire display data of each light-emitting unit in a single image frame; the light-emitting unit includes light-emitting sub-pixels of at least three different colors;

[0207] The brightness determination subunit is used to determine the brightness data of each color's light-emitting sub-pixel based on the display data of each light-emitting unit;

[0208] The above statistical units may include:

[0209] The cumulative statistics subunit is used to accumulate and count the number of light emitted by light emitted sub-pixels of different colors in a single image frame, based on the brightness data of each color light emitted sub-pixel in each light emitted unit, so as to obtain the number of light emitted by each color light emitted sub-pixels in a single image frame.

[0210] As one implementation of this application, the voltage adjustment module 802 may include:

[0211] A voltage adjustment unit is used to adjust the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame when the single image frame is the first image frame. The first image frame is an image frame that is missing at least one color.

[0212] As one implementation of this application, the voltage adjustment unit may include:

[0213] The first relational subunit is used to determine the first driving voltage of the display panel corresponding to the first image based on the missing color of the first image and the first correspondence relationship, wherein the first correspondence relationship is the correspondence between the missing color and the driving voltage.

[0214] Alternatively, the second relational subunit is used to determine the first driving voltage of the display panel corresponding to the first image based on the color to be displayed in the first image and the second correspondence, wherein the second correspondence is the correspondence between the color to be displayed and the driving voltage.

[0215] The first adjustment subunit is used to adjust the default driving voltage of the display panel to the first driving voltage.

[0216] As one implementation of this application, the aforementioned first relational subunit may include:

[0217] The first corresponding subunit is used to determine the second driving voltage corresponding to each missing color according to the first correspondence relationship when the missing colors in the first image include at least two colors.

[0218] The first determining subunit is used to determine the first driving voltage based on the minimum value of a plurality of second driving voltages.

[0219] As one implementation of this application, the aforementioned second relational subunit may include:

[0220] The second corresponding subunit is used to determine the third driving voltage corresponding to each color to be displayed according to the second correspondence relationship when the first image screen includes at least two colors to be displayed.

[0221] The second determining subunit is used to determine the first driving voltage based on the maximum value of a plurality of third driving voltages.

[0222] As one implementation of this application, the voltage adjustment unit may include:

[0223] The first relational subunit is used to determine the first driving voltage of the display panel corresponding to the first image based on the missing color of the first image and the first correspondence relationship, wherein the first correspondence relationship is the correspondence between the missing color and the driving voltage.

[0224] Alternatively, the second relational subunit is used to determine the first driving voltage of the display panel corresponding to the first image based on the color to be displayed in the first image and the second correspondence, wherein the second correspondence is the correspondence between the color to be displayed and the driving voltage.

[0225] The coefficient determination subunit is used to determine the corresponding first voltage coefficient based on the current brightness level;

[0226] A calculation subunit is used to obtain the fifth driving voltage based on the first voltage coefficient and the first driving voltage;

[0227] The second adjustment subunit is used to adjust the default driving voltage of the display panel to the fifth driving voltage.

[0228] Figure 15 A schematic diagram of the hardware structure of the drive voltage adjustment device for the display panel provided in an embodiment of this application is shown.

[0229] The drive voltage adjustment device for the display panel may include a processor 901 and a memory 902 storing computer program instructions.

[0230] Specifically, the processor 901 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0231] Memory 902 may include mass storage for data or instructions. For example, and not limitingly, memory 902 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where suitable, memory 902 may include removable or non-removable (or fixed) media. Where suitable, memory 902 may be internal or external to the drive voltage regulation device of the display panel. In a particular embodiment, memory 902 is a non-volatile solid-state memory.

[0232] In a particular embodiment, memory 902 may include read-only memory (ROM), random access memory (RAM), disk storage media device, optical storage media device, flash memory device, electrical, optical, or other physical / tangible memory storage device. Thus, generally, memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of this disclosure.

[0233] The processor 901 reads and executes computer program instructions stored in the memory 902 to implement any of the display panel driving voltage adjustment methods in the above embodiments.

[0234] In one example, the drive voltage adjustment device for the display panel may further include a communication interface 903 and a bus 910. Wherein, as Figure 15 As shown, the processor 901, memory 902, and communication interface 903 are connected through bus 910 and complete communication with each other.

[0235] The communication interface 903 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0236] Bus 910 includes hardware, software, or both, that couples components of the drive voltage regulation device for the display panel together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 910 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, any suitable bus or interconnect is contemplated herein.

[0237] Furthermore, in conjunction with the display panel driving voltage adjustment method in the above embodiments, this application embodiment can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any of the display panel driving voltage adjustment methods in the above embodiments.

[0238] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0239] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0240] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0241] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0242] The above are merely specific embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A method for adjusting the driving voltage of a display panel, characterized in that, The method includes: Determine the color type of the image to be displayed; The default driving voltage of the display panel is adjusted according to the color type of the image, and the default driving voltage is different for at least two different color types of the image. Adjusting the default driving voltage of the display panel according to the color type of the image includes: When a single image frame is the first image frame, the default driving voltage of the display panel is adjusted according to the missing color and / or the color to be displayed in the first image frame, wherein the first image frame is an image frame missing at least one color. When the single image frame is the first image frame, adjusting the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame includes: Based on the missing colors of the first image and the first correspondence, the first driving voltage of the display panel corresponding to the first image is determined, where the first correspondence is the correspondence between the missing colors and the driving voltage. Alternatively, based on the color to be displayed in the first image and the second correspondence, the first driving voltage of the display panel corresponding to the first image is determined, where the second correspondence is the correspondence between the color to be displayed and the driving voltage. Adjust the default driving voltage of the display panel to the first driving voltage; The step of determining the first driving voltage of the display panel corresponding to the first image based on the missing color of the first image and the first correspondence includes: When the missing colors in the first image include at least two types, the second driving voltage corresponding to each missing color is determined according to the first correspondence. The first driving voltage is determined based on the minimum value of a plurality of second driving voltages; Alternatively, based on the color to be displayed in the first image and the second correspondence, determine the first driving voltage of the display panel corresponding to the first image, including: When the first image screen contains at least two colors to be displayed, the third driving voltage corresponding to each color to be displayed is determined according to the second correspondence. The first driving voltage is determined based on the maximum value of a plurality of third driving voltages.

2. The method for adjusting the driving voltage of a display panel according to claim 1, characterized in that, Different color types of images correspond to different color categories.

3. The method for adjusting the driving voltage of a display panel according to claim 1, characterized in that, The default driving voltage corresponding to the image being a pure red image, a pure blue image, or a mixed red and blue image with missing green is lower than the default driving voltage corresponding to the image including green.

4. The method for adjusting the driving voltage of a display panel according to claim 1, characterized in that, The default driving voltage corresponding to a pure red image is greater than or equal to the default driving voltage corresponding to a pure blue image.

5. The method for adjusting the driving voltage of a display panel according to claim 1, characterized in that, The power supply of the display panel outputs the default driving voltage to the driver chip of the display panel.

6. The method for adjusting the driving voltage of a display panel according to claim 1, characterized in that, Determine the color type of the image to be displayed, including: Obtain the emission ratio of each color's luminous sub-pixel in a single image; The color type of the image is determined based on the emission ratio.

7. The method for adjusting the driving voltage of a display panel according to claim 6, characterized in that, The light-emitting sub-pixels include red light-emitting sub-pixels, green light-emitting sub-pixels, and blue light-emitting sub-pixels.

8. The method for adjusting the driving voltage of a display panel according to claim 6 or 7, characterized in that, The step of obtaining the emission ratio of each color's luminous sub-pixel in a single image frame includes: Obtain the brightness data of each color's luminous sub-pixels in a single image; Based on the brightness data, the number of light emitted by each of the different colored light-emitting sub-pixels is counted. The emission ratio of each color's luminous sub-pixels is calculated based on the number of luminous sub-pixels corresponding to each color.

9. The method for adjusting the driving voltage of a display panel according to claim 8, characterized in that, The process of acquiring the brightness data of each color's luminous sub-pixels in a single image includes: The display data of each light-emitting unit in a single image frame is acquired; the light-emitting unit includes light-emitting sub-pixels of at least three different colors; The brightness data of each color's luminous sub-pixel is determined based on the display data of each luminous unit; The step of calculating the number of light emitted by each color sub-pixel based on the brightness data includes: In a single image frame, based on the brightness data of each color of the luminous sub-pixel in each luminous unit, the number of luminous sub-pixels of different colors is accumulated and counted to obtain the number of luminous sub-pixels of each color in a single image frame.

10. The method for adjusting the driving voltage of a display panel according to claim 1, characterized in that, When the single image frame is the first image frame, adjusting the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame includes: Based on the missing colors of the first image and the first correspondence, the first driving voltage of the display panel corresponding to the first image is determined, where the first correspondence is the correspondence between the missing colors and the driving voltage. Alternatively, based on the color to be displayed in the first image and the second correspondence, the first driving voltage of the display panel corresponding to the first image is determined, where the second correspondence is the correspondence between the color to be displayed and the driving voltage. Determine the corresponding first voltage coefficient based on the current brightness level; The fifth driving voltage is obtained based on the first voltage coefficient and the first driving voltage; Adjust the default driving voltage of the display panel to the fifth driving voltage.

11. A driving voltage adjustment device for a display panel, characterized in that, The device includes: The type determination module is used to determine the color type of the image to be displayed. A voltage adjustment module is used to adjust the default driving voltage of the display panel according to the color type of the image, wherein the default driving voltage is different for at least two different color types of the image. The voltage adjustment module includes: a voltage adjustment unit, used to adjust the default driving voltage of the display panel according to the missing color and / or the color to be displayed in the first image frame when the single image frame is the first image frame; the first image frame is an image frame missing at least one color. The voltage adjustment unit includes: The first relational subunit is used to determine the first driving voltage of the display panel corresponding to the first image based on the missing color of the first image and the first correspondence relationship, wherein the first correspondence relationship is the correspondence between the missing color and the driving voltage. Alternatively, the second relational subunit is used to determine the first driving voltage of the display panel corresponding to the first image based on the color to be displayed in the first image and the second correspondence, wherein the second correspondence is the correspondence between the color to be displayed and the driving voltage. The first adjustment subunit is used to adjust the default driving voltage of the display panel to a first driving voltage; the first relational subunit includes: The first corresponding subunit is used to determine the second driving voltage corresponding to each missing color according to the first correspondence relationship when the missing colors in the first image include at least two colors. The second determining subunit is used to determine the first driving voltage based on the minimum value of a plurality of second driving voltages; Alternatively, the second relational subunit includes: The second corresponding subunit is used to determine the third driving voltage corresponding to each color to be displayed according to the second correspondence when the first image screen includes at least two colors to be displayed. The second determining subunit is used to determine the first driving voltage based on the maximum value of a plurality of third driving voltages.

12. A driving voltage adjustment device for a display panel, characterized in that, The driving voltage adjustment device for the display panel includes: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, it implements the driving voltage adjustment method for the display panel as described in any one of claims 1-10.

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