Display device, method of displaying an image, and computer program product

Abstract

A display device is provided. The display device includes a display panel, a memory, and one or more processors. The memory stores computer-executable instructions for controlling the one or more processors to perform operations of detecting an area configured to display a static image, detecting, in the area configured to display the static image, a parameter of a driving transistor of a sub-pixel of a first color for a first time period and detecting, in the area configured to display the static image, the parameter of the driving transistor of a sub-pixel of a second color for a second time period, determining a sub-pixel value of the sub-pixel in a corresponding pixel in the static image in a corresponding image frame including the static image, detecting the parameter of the driving transistor of the sub-pixel of the first color at a first frequency, detecting the parameter of the driving transistor of the sub-pixel of the second color at a second frequency, and the first frequency being higher than the second frequency.

Description

TECHNICAL FIELD

[0001] The present application relates to display technology, and more particularly, to a display device, a method of displaying an image, and a computer program product. BACKGROUND

[0002] Both liquid crystal display panels and organic light emitting diode display panels can experience a technical problem known as ghosting. Ghosting occurs when a display panel continues to display a previous image even after the content has changed, which can negatively affect the visual experience. SUMMARY

[0003] In one aspect, the present disclosure provides a display device, comprising: a display panel; a memory; and one or more processors; wherein the memory and the one or more processors are connected to each other; and the memory stores computer executable instructions for controlling the one or more processors to perform the following operations: detecting a region configured to display a static image; detecting, in the region configured to display the static image, a parameter of a driving transistor of a sub-pixel of a first color for a first time period and detecting a parameter of a driving transistor of a sub-pixel of a second color for a second time period; determining a sub-pixel value of a sub-pixel in a corresponding pixel in the static image in a corresponding image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the corresponding pixel in the static image to a luminance value of a sub-pixel in the corresponding pixel in the static image; reducing a first luminance value of a first sub-pixel in the corresponding pixel to a first adjusted luminance value; and converting the first adjusted luminance value of the first sub-pixel in the corresponding pixel in the static image to a first adjusted sub-pixel value; wherein the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency; the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency; and the first frequency is higher than the second frequency.

[0004] Optionally, the memory further stores computer executable instructions for controlling the one or more processors to cause the display panel to display the static image using the sub-pixel values comprising the first adjusted sub-pixel value and the second sub-pixel value.

[0005] Optionally, the first luminance value of the first sub-pixel in the corresponding pixel is reduced by a first luminance difference to obtain the first adjusted luminance value; and the first luminance difference and the first luminance value have a first ratio in a range of 1:10 to 9:10.

[0006] Optionally, the memory further stores computer-executable instructions for controlling the one or more processors to perform operations of: increasing at least a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value; converting the adjusted luminance values of the sub-pixels in the respective pixel in the static image to adjusted sub-pixel values of the sub-pixels in the respective pixel in the static image; and causing the display panel to display the static image using the adjusted sub-pixel values.

[0007] Optionally, a total luminance value of the sub-pixels of the respective pixel remains substantially the same after the at least the first luminance value of the first sub-pixel in the respective pixel is decreased to the first adjusted luminance value and the at least the second luminance value of the second sub-pixel in the respective pixel is increased to the second adjusted luminance value.

[0008] Optionally, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value; the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value; and the second luminance difference is substantially the same as the first luminance difference.

[0009] Optionally, a first ratio of the first luminance difference to the first luminance value is in a range from 9:10 to 1:1.

[0010] Optionally, the first adjusted luminance value is 0.

[0011] Optionally, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, and the first color is different from the second color.

[0012] Optionally, the memory further stores computer-executable instructions for controlling the one or more processors to: decrease a third luminance value of a third sub-pixel in the respective pixel to a third adjusted luminance value; decrease a fourth luminance value of a fourth sub-pixel in the respective pixel to a fourth adjusted luminance value; increase a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value; convert the second adjusted luminance value of the second sub-pixel in the respective pixel in the static image to a second adjusted sub-pixel value; convert the third adjusted luminance value of the third sub-pixel in the respective pixel in the static image to a third adjusted sub-pixel value; convert the fourth adjusted luminance value of the fourth sub-pixel in the respective pixel in the static image to a fourth adjusted sub-pixel value; and use the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third adjusted sub-pixel value, and the fourth adjusted sub-pixel value to cause the display panel to display the static image.

[0013] Optionally, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value; the third luminance value of the third sub-pixel in the respective pixel is decreased by a third luminance difference to obtain the third adjusted luminance value; the fourth luminance value of the fourth sub-pixel in the respective pixel is decreased by a fourth luminance difference to obtain the fourth adjusted luminance value; the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value; and the second luminance difference is substantially the same as a sum of the first luminance difference, the third luminance difference, and the fourth luminance difference.

[0014] Optionally, a first ratio of the first luminance difference to the first luminance value is substantially the same as a second ratio of the third luminance difference to the third luminance value, and substantially the same as a third ratio of the fourth luminance difference to the fourth luminance value.

[0015] Optionally, the first ratio, the second ratio, and the third ratio are within a range of 6:10 to 8:10.

[0016] Optionally, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color; and the first color, the second color, the third color, and the fourth color are four different colors.

[0017] Optionally, the memory further stores computer-executable instructions for controlling the one or more processors to perform the following operations: in a first stage, decreasing the first luminance value of the first sub-pixel in the respective pixel to the first adjusted luminance value; increasing a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value; in the first stage, converting the first adjusted luminance value of the first sub-pixel in the respective pixel in the static image to the first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel in the respective pixel in the static image to a second adjusted sub-pixel value; and using the sub-pixel values including the first adjusted sub-pixel value and the second sub-pixel value of the second sub-pixel in the respective pixel to cause the display panel to display the static image; in a second stage, decreasing the first luminance value of the first sub-pixel in the respective pixel to the first adjusted luminance value; increasing a third luminance value of a third sub-pixel in the respective pixel to a third adjusted luminance value; decreasing the second adjusted luminance value of the second sub-pixel to the second luminance value; and in the second stage, converting the first adjusted luminance value of the first sub-pixel in the respective pixel in the static image to the first adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel in the respective pixel in the static image to a third adjusted sub-pixel value; and using the sub-pixel values including the first adjusted sub-pixel value and the second sub-pixel value to cause the display panel to display the static image.

[0018] Optionally, in the first stage, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value, and the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value; in the first stage, the second luminance difference is substantially the same as the first luminance difference; in the second stage, the first luminance value of the first sub-pixel in the respective pixel is decreased by the first luminance difference to obtain the first adjusted luminance value, and the third luminance value of the third sub-pixel in the respective pixel is increased by a third luminance difference to obtain the third adjusted luminance value; and in the second stage, the third luminance difference is substantially the same as the first luminance difference.

[0019] Optionally, the first luminance difference and the first luminance value have a first ratio in a range of 9:10 to 1:1.

[0020] Optionally, the first adjusted luminance value is 0.

[0021] In another aspect, the present disclosure provides a method of displaying an image, comprising: detecting a region configured to display a static image in a display panel; detecting, in the region configured to display the static image, a parameter of a driving transistor of a sub-pixel of a first color for a first time period and a parameter of a driving transistor of a sub-pixel of a second color for a second time period; determining a sub-pixel value of a sub-pixel in a corresponding pixel in the static image in a corresponding image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the corresponding pixel in the static image to a luminance value of a sub-pixel in the corresponding pixel in the static image; reducing a first luminance value of a first sub-pixel in the corresponding pixel to a first adjusted luminance value; and converting the first adjusted luminance value of the first sub-pixel in the corresponding pixel in the static image to a first adjusted sub-pixel value; wherein the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency; the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency; and the first frequency is higher than the second frequency.

[0022] In another aspect, the present disclosure provides a computer program product comprising a non-transitory, tangible computer-readable medium having computer-readable instructions thereon, the computer-readable instructions executable by a processor to cause the processor to perform: detecting a region configured to display a static image; detecting, in the region configured to display the static image, a parameter of a driving transistor of a sub-pixel of a first color for a first time period and a parameter of a driving transistor of a sub-pixel of a second color for a second time period; determining a sub-pixel value of a sub-pixel in a corresponding pixel in the static image in a corresponding image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the corresponding pixel in the static image to a luminance value of a sub-pixel in the corresponding pixel in the static image; reducing a first luminance value of a first sub-pixel in the corresponding pixel to a first adjusted luminance value; and converting the first adjusted luminance value of the first sub-pixel in the corresponding pixel in the static image to a first adjusted sub-pixel value; wherein the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency; the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency; and the first frequency is higher than the second frequency. BRIEF DESCRIPTION OF DRAWINGS

[0023] According to various disclosed embodiments, the following drawings are merely examples for illustrative purposes only and are not intended to limit the scope of the present disclosure.

[0024] Figure 1A A first image displayed by a display panel is shown.

[0025] Figure 1BA second image displayed by the display panel is shown after the display panel displays the first image for a period of time.

[0026] Figure 2 Image display on a display panel in accordance with some embodiments of the present disclosure is shown.

[0027] Figure 3 is a flowchart showing a method of displaying an image in accordance with some embodiments of the present disclosure.

[0028] Figure 4A Correlation between luminance values and sub-pixel values for first sub-pixels of a first color in accordance with some embodiments of the present disclosure is shown.

[0029] Figure 4B Correlation between luminance values and sub-pixel values for second sub-pixels of a second color in accordance with some embodiments of the present disclosure is shown.

[0030] Figure 5 is a diagram showing luminance values of sub-pixels in respective pixels in accordance with some embodiments of the present disclosure.

[0031] Figure 6 is a flowchart showing a method of displaying an image in accordance with some embodiments of the present disclosure.

[0032] Figure 7 is a diagram showing luminance values of sub-pixels in respective pixels in accordance with some embodiments of the present disclosure.

[0033] Figure 8 is a flowchart showing a method of displaying an image in accordance with some embodiments of the present disclosure.

[0034] Figure 9 is a diagram showing luminance values of sub-pixels in respective pixels in accordance with some embodiments of the present disclosure.

[0035] Figure 10 is a flowchart showing a method of displaying an image in accordance with some embodiments of the present disclosure.

[0036] Figure 11 is a diagram showing luminance values of sub-pixels in respective pixels in accordance with some embodiments of the present disclosure.

[0037] Figure 12 is a flowchart showing a method of displaying an image in accordance with some embodiments of the present disclosure.

[0038] Figure 13 is a diagram showing luminance values of sub-pixels in respective pixels in accordance with some embodiments of the present disclosure.

[0039] Figure 14is a flowchart illustrating a method of displaying an image in accordance with some embodiments of the present disclosure.

[0040] Figure 15 is a diagram illustrating luminance values of sub-pixels in a respective pixel in accordance with some embodiments of the present disclosure.

[0041] Figure 16 is a flowchart illustrating a method of displaying an image in accordance with some embodiments of the present disclosure.

[0042] Figure 17 illustrates a sequence of detecting a parameter of a driving transistor in a display panel in accordance with some embodiments of the present disclosure.

[0043] Figure 18 is a schematic diagram illustrating a display apparatus in accordance with some embodiments of the present disclosure. DETAILED DESCRIPTION

[0044] The present disclosure will now be described in greater detail in connection with the following embodiments. It should be noted that the following description of some embodiments is merely intended to be illustrative and does not limit the scope of the disclosure.

[0045] Figure 1A A first image displayed by the display panel is shown. The first image has a checkerboard pattern including one or more dark regions (black) and one or more bright regions (white). Figure 1B A second image displayed by the display panel after the first image is displayed for a period of time is shown. In one example, the first image is displayed for six hours before switching to the second image. The second image is intended to be an all-white image. However, as Figure 1B shown, the one or more bright regions in the first image appear darker in the second image compared to the one or more dark regions in the first image. Figure 1A and Figure 1B The phenomenon shown in Figs. 1-3 is an example of residual image or burn-in, which can be caused by long exposure to static images.

[0046] In the pixel driving circuit of the display panel, the relationship between the driving current of the driving transistor and the threshold voltage can be expressed as:

[0047] Id = k * (Vgs - Vth) 2

[0048] where Id represents the driving current of the pixel driving circuit, Vgs represents the gate-source voltage, Vth represents the threshold voltage of the driving transistor, and k is a parameter depending on the physical properties of the driving transistor. The k parameter, also referred to as the transconductance parameter or device gain factor, represents the slope of the Id-Vgs curve and determines the strength of the amplification or switching capability of the transistor. It depends on the physical dimensions and properties of the transistor, such as the channel width and channel length.

[0049] The inventors of the present disclosure found that, at least in an organic light emitting display panel, the main factors contributing to the residual image are the threshold voltage and the parameter k of the driving transistor. Long time positive stress, light exposure and temperature fluctuation can cause the Vth to shift positively or negatively, resulting in irregularities such as residual image in the display panel.

[0050] The residual image occurs when the display panel displays an image in a region of the display panel for a long time. For example, the residual image occurs when the display panel displays a television station logo for a long time.

[0051] The present disclosure provides, among other things, a display apparatus, a method of displaying an image, and a computer program product that substantially obviate one or more problems due to limitations and disadvantages of the related art. In one aspect, the present disclosure provides a display apparatus. In some embodiments, the display apparatus includes a display panel; a memory; and one or more processors. Optionally, the memory and the one or more processors are connected to each other; and the memory stores computer executable instructions for controlling the one or more processors to perform operations of: detecting a region configured to display a static image in the display panel; detecting a parameter of a driving transistor of a sub-pixel of a first color in the region configured to display the static image for a first time period and detecting a parameter of a driving transistor of a sub-pixel of a second color for a second time period; determining a sub-pixel value of a sub-pixel in a corresponding pixel in the static image in a corresponding image frame including the static image; converting the sub-pixel value of a sub-pixel in the corresponding pixel in the static image to a luminance value of a sub-pixel in the corresponding pixel in the static image; lowering a first luminance value of a first sub-pixel in the corresponding pixel to a first adjusted luminance value; and converting the first adjusted luminance value of the first sub-pixel in the corresponding pixel in the static image to a first adjusted sub-pixel value. Optionally, the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency. Optionally, the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency. Optionally, the first frequency is higher than the second frequency.

[0052] Figure 2 An image display on a display panel according to some embodiments of the present disclosure is shown. Referring to FIG. 1, a display panel 100 includes a plurality of pixels 110. Each pixel 110 includes a plurality of sub-pixels 120. Each sub-pixel 120 includes a driving transistor 130 and a light emitting diode 140. The driving transistor 130 is connected to a gate line 150 and a data line 160. The light emitting diode 140 is connected to the driving transistor 130 and a power line 170. Figure 2, the display panel is configured to display a static image in the first region R1 for a time period greater than a threshold value (indicated as "LOGO" in Figure 2 Examples of static images include, but are not limited to, on-screen graphics, such as a logo appearing in a corner of the screen, typically displaying the name or logo of a television network, and it serves to identify the network or program being broadcast. The threshold value can be, for example, greater than 5 minutes, greater than 10 minutes, greater than 15 minutes, greater than 20 minutes, greater than 25 minutes, greater than 30 minutes, greater than 35 minutes, greater than 40 minutes, greater than 45 minutes, greater than 50 minutes, greater than 55 minutes, greater than 1 hour, greater than 2 hours, greater than 3 hours, greater than 4 hours, greater than 5 hours, greater than 6 hours, greater than 7 hours, greater than 8 hours, greater than 9 hours, or greater than 10 hours.

[0053] In some embodiments, the display panel is configured to display a dynamic image in a second region R2 outside the first region R1. As used herein, the term "dynamic image" refers to a visual element that contains motion or animation and changes over time. Examples of dynamic images include videos, animated graphics, or any other visual content containing movement. As used herein, the term "static image" refers to a visual element that does not change and remains fixed on the screen. It is a digital representation that does not contain animation or motion. Examples of static images include on-screen graphics, logos, icons, and photographs. As mentioned above, the problem of image retention or burn-in is prone to occur in a region configured to display static images (e.g., the first region R1).

[0054] Although the display panel is configured to display a static image in the first region R1, the display panel can also display or not display a dynamic image in the first region R1 simultaneously. In one example, the display panel is configured to display exclusively static images in the first region R1. In another example, the display panel is configured to display both static images and dynamic images in the first region R1.

[0055] Figure 3 is a flowchart illustrating a method of displaying images in some embodiments according to the present disclosure. In some embodiments, referring to Figure 3 The method of displaying images includes detecting a region configured to display a static image. In some embodiments, the method includes analyzing a video stream in real-time, for example, by scanning the sub-pixels of the video stream and identifying any region matching characteristics of a static image. Various suitable characteristics can be used to identify a static image. Examples of suitable characteristics include size, shape, color, and location. Various suitable image processing algorithms can be used to analyze the video stream. Examples of image processing algorithms that can be used include various suitable image segmentation algorithms, such as thresholding or clustering. The image segmentation algorithm can separate the static image from dynamic images or background images.

[0056] Image segmentation algorithms are configured to divide an image into multiple regions or segments based on their visual characteristics, such as color, texture, or shape. In one example, a thresholding algorithm can be used to separate an image into different segments based on a user-defined threshold. Pixels with intensity above the threshold are classified into one segment, while pixels below the threshold are classified into another segment. In another example, a clustering algorithm can be used to group pixels together based on their similarity in color or other visual features. An example of a clustering algorithm includes the k-means algorithm, which groups pixels into k clusters based on their distance from the cluster centers. In another example, an edge-based segmentation algorithm can be used to identify edges in an image and use them to separate the image into different segments. An example of an edge-based segmentation algorithm includes the Canny edge detector, which uses gradient information to identify edges in an image. In another example, a region-based segmentation algorithm can be used to divide an image into multiple regions based on their homogeneity in color or other visual features. An example of a region-based segmentation algorithm includes the watershed algorithm, which treats an image as a topography and identifies regions based on the boundaries between different watershed lines. In another example, a contour-based segmentation algorithm can be used to identify contours in an image and use them to separate the image into different segments. An example of a contour-based segmentation algorithm includes the active contour or snake algorithm, which iteratively adjusts the position of a contour to fit the boundary of an object in an image.

[0057] In some embodiments, the method further comprises determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame comprising the static image. The sub-pixel value is typically in the range of 0 to 255. In one example, the sub-pixel value is a grayscale value of the sub-pixel. The higher the sub-pixel value, the higher the brightness or intensity of the light emitted by the sub-pixel. In one example, the method comprises extracting a respective image frame of a plurality of image frames, e.g., in a video stream; and determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in the respective image frame comprising the static image.

[0058] In some embodiments, each pixel comprises a plurality of sub-pixels of different colors. Optionally, each pixel comprises a first sub-pixel of a first color and a second sub-pixel of a second color. Optionally, each pixel further comprises a third sub-pixel of a third color. Optionally, each pixel further comprises a fourth sub-pixel of a fourth color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0059] In some embodiments, the method further includes converting the sub-pixel values of the sub-pixels in the respective pixels in the static image to luminance values of the sub-pixels in the respective pixels in the static image. Various appropriate methods can be used to convert the sub-pixel values of the sub-pixels in the respective pixels in the static image to luminance values of the sub-pixels in the respective pixels in the static image. In some embodiments, the sub-pixel values can be converted to luminance values using a gamma value.

[0060] In some embodiments, the gamma value is represented as:

[0061]

[0062] In some embodiments, a gamma value curve or a gamma value table can be used. Optionally, the method includes converting the sub-pixel values of the sub-pixels in the respective pixels in the static image to luminance values of the sub-pixels in the respective pixels in the static image using the gamma value table or the gamma value curve.

[0063] In one example, the maximum sub-pixel value is 255.

[0064] A gamma value is a parameter used to describe the relationship between sub-pixel values in a digital image and the corresponding luminance values they represent. The gamma value is a measure of the linearity or non-linearity of a display’s response to changes in input voltage. A gamma value of 1.0 represents a linear response, while a value greater than 1.0 represents a non-linear response in which mid-tone values are boosted in luminance. A gamma value of 1.0 means that the luminance value increases or decreases linearly with the pixel value. Gamma values are important in accurately reproducing image content on a display, especially when viewing images across different devices with varying gamma values.

[0065] The gamma values for sub-pixels of different colors (e.g., red, green, and blue) can be different because the human eye responds differently to light of different colors. Figure 4A The correlation between luminance values and sub-pixel values for first sub-pixels of a first color in some embodiments of the present disclosure is shown. Figure 4B The correlation between luminance values and sub-pixel values for second sub-pixels of a second color in some embodiments of the present disclosure is shown. In one example, the first color is blue and the second color is white. In another example, the first sub-pixel is a blue sub-pixel and the second sub-pixel is a white sub-pixel. As Figure 4A and Figure 4B As shown, for the same sub-pixel value, the first sub-pixel of the first color has a much smaller corresponding luminance value compared to the second sub-pixel of the second color.

[0066] In some embodiments, the method further includes decreasing at least a first luminance value of a first sub-pixel in the respective pixel to a first adjusted luminance value; increasing at least a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value, wherein the second sub-pixel requires a smaller sub-pixel value than the first sub-pixel to achieve the same luminance value. By decreasing at least a first luminance value of a first sub-pixel in the respective pixel to a first adjusted luminance value and increasing at least a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value, afterimages caused by displaying a static image at the same location for an extended period of time can be reduced or avoided.

[0067] In some embodiments, after decreasing at least a first luminance value of a first sub-pixel in the respective pixel to a first adjusted luminance value and increasing at least a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value, the total luminance value of the sub-pixels of the respective pixel remains substantially the same. As used herein, the term “substantially the same” means that the difference between the two values is no more than 10% of the base value (e.g., one of the two values), such as no more than 8%, no more than 6%, no more than 4%, no more than 2%, no more than 1%, no more than 0.5%, no more than 0.1%, no more than 0.05%, and no more than 0.01% of the base value. For example, the decreased luminance value of the at least first sub-pixel is substantially the same as the increased luminance value of the at least second sub-pixel.

[0068] In some embodiments, the method further includes converting the adjusted luminance values of the sub-pixels in the respective pixel in the static image to adjusted sub-pixel values of the sub-pixels in the respective pixel in the static image; and displaying the static image using the adjusted sub-pixel values. For example, the method further includes converting the first adjusted luminance value to a first adjusted sub-pixel value and converting the second adjusted luminance value to a second adjusted sub-pixel value, and displaying the static image using the first adjusted sub-pixel value of the first sub-pixel and the second adjusted sub-pixel value of the second sub-pixel.

[0069] Various suitable implementations can be practiced in accordance with the present disclosure. Figure 5 FIG. 1 is a diagram illustrating luminance values of sub-pixels in a respective pixel in some embodiments according to the present disclosure. Figure 6 FIG. 2 is a flowchart illustrating a method of displaying an image in some embodiments according to the present disclosure. Reference is made to FIG. 1. Figure 5 and Figure 6In some embodiments, the method of displaying an image includes detecting a region configured to display a static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame including the static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame including the static image; converting the sub-pixel value of a sub-pixel in the respective pixel in the static image to a luminance value of a sub-pixel in the respective pixel in the static image; decreasing a first luminance value of a first sub-pixel sp1 in the respective pixel to a first adjusted luminance value; decreasing a third luminance value of a third sub-pixel sp3 in the respective pixel to a third adjusted luminance value; decreasing a fourth luminance value of a fourth sub-pixel sp4 in the respective pixel to a fourth adjusted luminance value; increasing a second luminance value of a second sub-pixel sp2 in the respective pixel to a second adjusted luminance value; converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel sp2 in the respective pixel in the static image to a second adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel sp3 in the respective pixel in the static image to a third adjusted sub-pixel value; converting the fourth adjusted luminance value of the fourth sub-pixel sp4 in the respective pixel in the static image to a fourth adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third adjusted sub-pixel value, and the fourth adjusted sub-pixel value.

[0070] In some embodiments, to achieve the same luminance value, the second sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel. Optionally, to achieve the same luminance value, the third sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel. Optionally, to achieve the same luminance value, the fourth sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel.

[0071] Reference is made to Figure 5 In some embodiments, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by a first luminance difference Δlv1 to obtain the first adjusted luminance value, the third luminance value of the third sub-pixel sp3 in the respective pixel is decreased by a third luminance difference Δlv3 to obtain the third adjusted luminance value, the fourth luminance value of the fourth sub-pixel sp4 in the respective pixel is decreased by a fourth luminance difference Δlv4 to obtain the fourth adjusted luminance value, and the second luminance value of the second sub-pixel sp2 in the respective pixel is increased by a second luminance difference Δlv2 to obtain the second adjusted luminance value.

[0072] In some embodiments, the second luminance difference Δlv2 is substantially the same as the sum of the first luminance difference Δlv1, the third luminance difference Δlv3, and the fourth luminance difference Δlv4. By making the second luminance difference Δlv2 substantially the same as the sum of the first luminance difference Δlv1, the third luminance difference Δlv3, and the fourth luminance difference Δlv4, the overall luminance value of the corresponding pixel remains substantially the same.

[0073] In some embodiments, a first ratio of the first luminance difference Δlv1 to the first luminance value is substantially the same as a second ratio of the third luminance difference Δlv3 to the third luminance value, and substantially the same as a third ratio of the fourth luminance difference Δlv4 to the fourth luminance value. The inventors of the present disclosure have found that by making the first ratio, the second ratio, and the third ratio substantially the same, color cast can be eliminated when displaying a static image.

[0074] In alternative embodiments, at least two of the first ratio of the first luminance difference Δlv1 to the first luminance value, the second ratio of the third luminance difference Δlv3 to the third luminance value, and the third ratio of the fourth luminance difference Δlv4 to the fourth luminance value are different from each other, e.g., by at least 10%, by at least 15%, by at least 20%, or by at least 35%. Optionally, the first ratio of the first luminance difference Δlv1 to the first luminance value, the second ratio of the third luminance difference Δlv3 to the third luminance value, and the third ratio of the fourth luminance difference Δlv4 to the fourth luminance value are different from each other.

[0075] In some embodiments, a fourth ratio of the first adjusted luminance value to the first luminance value is substantially the same as a fifth ratio of the third adjusted luminance value to the third luminance value, and substantially the same as a sixth ratio of the fourth adjusted luminance value to the fourth luminance value. The inventors of the present disclosure have found that by making the fourth ratio, the fifth ratio, and the sixth ratio substantially the same, color cast can be eliminated when displaying a static image.

[0076] In alternative embodiments, at least two of the fourth ratio of the first adjusted luminance value to the first luminance value, the fifth ratio of the third adjusted luminance value to the third luminance value, and the sixth ratio of the fourth adjusted luminance value to the fourth luminance value are different from each other, e.g., by at least 10%, by at least 15%, by at least 20%, or by at least 35%. Optionally, the fourth ratio of the first adjusted luminance value to the first luminance value, the fifth ratio of the third adjusted luminance value to the third luminance value, and the sixth ratio of the fourth adjusted luminance value to the fourth luminance value are different from each other.

[0077] In some embodiments, the first ratio, the second ratio, and the third ratio are in the range of 1:10 to 9:10, such as 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, or 8:10 to 9:10. Optionally, the first ratio, the second ratio, and the third ratio are in the range of 6:10 to 8:10. In one example, the first ratio, the second ratio, and the third ratio are 7:10.

[0078] In some embodiments, the fourth ratio, the fifth ratio, and the sixth ratio are in the range of 1:10 to 9:10, such as 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, or 8:10 to 9:10. Optionally, the fourth ratio, the fifth ratio, and the sixth ratio are in the range of 2:10 to 4:10. In one example, the fourth ratio, the fifth ratio, and the sixth ratio are 3:10.

[0079] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0080] Figure 7 is a graph showing luminance values of sub-pixels in a respective pixel according to some embodiments of the present disclosure. Figure 8 is a flowchart showing a method of displaying an image according to some embodiments of the present disclosure. Reference is made to Figure 7 and Figure 8In some embodiments, the method of displaying an image includes detecting a region configured to display a static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame including the static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame including the static image; converting the sub-pixel value of the sub-pixel in the respective pixel in the static image to a luminance value of the sub-pixel in the respective pixel in the static image; decreasing a first luminance value of a first sub-pixel sp1 in the respective pixel to a first adjusted luminance value; increasing a second luminance value of a second sub-pixel sp2 in the respective pixel to a second adjusted luminance value; converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel sp2 in the respective pixel in the static image to a second adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third sub-pixel value, and the fourth sub-pixel value.

[0081] In some embodiments, to achieve the same luminance value, the second sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel.

[0082] Reference is made to Figure 7 In some embodiments, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by a first luminance difference Δlv1 to obtain the first adjusted luminance value, and the second luminance value of the second sub-pixel sp2 in the respective pixel is increased by a second luminance difference Δlv2 to obtain the second adjusted luminance value.

[0083] In some embodiments, the second luminance difference Δlv2 is substantially the same as the first luminance difference Δlv1. By making the second luminance difference Δlv2 substantially the same as the first luminance difference Δlv1, the total luminance value of the respective pixel remains substantially the same.

[0084] In some embodiments, the first ratio of the first luminance difference Δlv1 to the first luminance value is in a range of 1:10 to 1:1, for example, 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1:1. Optionally, the first ratio is in a range of 9:10 to 1:1. In one example, the first ratio is 1:1, e.g., the first adjusted luminance value is 0.

[0085] In some embodiments, the first sub-pixel is a sub-pixel of a first color, and the second sub-pixel is a sub-pixel of a second color. In alternative embodiments, the first sub-pixel is a sub-pixel of a third color, and the second sub-pixel is a sub-pixel of a second color. In alternative embodiments, the first sub-pixel is a sub-pixel of a fourth color, and the second sub-pixel is a sub-pixel of a second color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0086] Figure 9 is a diagram showing luminance values of sub-pixels in a respective pixel in some embodiments according to the present disclosure. Figure 10 is a flowchart showing a method of displaying an image in some embodiments according to the present disclosure. Reference is made to Figure 9 and Figure 10 In some embodiments, the method of displaying an image comprises detecting a region configured to display a static image; determining sub-pixel values of sub-pixels in a respective pixel in a respective image frame comprising the static image; determining sub-pixel values of sub-pixels in a respective pixel in the static image; converting the sub-pixel values of sub-pixels in the respective pixel in the static image to luminance values of sub-pixels in the respective pixel in the static image; in a first phase T1, decreasing a first luminance value of a first sub-pixel sp1 in a respective pixel to a first adjusted luminance value; increasing a second luminance value of a second sub-pixel sp2 in a respective pixel to a second adjusted luminance value; in the first phase T1, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel sp2 in the respective pixel in the static image to a second adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second adjusted sub-pixel value, a third sub-pixel value, and a fourth sub-pixel value; in a second phase T2, decreasing the first luminance value of the first sub-pixel sp1 in a respective pixel to a first adjusted luminance value; increasing a third luminance value of a third sub-pixel sp3 in a respective pixel to a third adjusted luminance value; decreasing the second adjusted luminance value of the second sub-pixel sp2 to a second luminance value; in the second phase T2, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel sp3 in the respective pixel in the static image to a third adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second sub-pixel value, the third adjusted sub-pixel value, and the fourth sub-pixel value.

[0087] The inventors of the present disclosure found that by setting the first phase T1 and the second phase T2, the luminance values of the two different sub-pixels are alternately increased, avoiding the problem of residual image in any one sub-pixel with increased luminance value.

[0088] In some embodiments, to achieve the same luminance value, the second sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel. Optionally, to achieve the same luminance value, the third sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel.

[0089] Referring to Figure 9 In the first stage T1, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by a first luminance difference Δlv1 to obtain a first adjusted luminance value, and the second luminance value of the second sub-pixel sp2 in the respective pixel is increased by a second luminance difference Δlv2 to obtain a second adjusted luminance value.

[0090] In some embodiments, in the first stage T1, the second luminance difference Δlv2 is substantially the same as the first luminance difference Δlv1. By making the second luminance difference Δlv2 substantially the same as the first luminance difference Δlv1, the total luminance value of the respective pixel remains substantially the same.

[0091] In some embodiments, in the first stage T1, the first ratio of the first luminance difference Δlv1 to the first luminance value is in the range of 1 :10 to 1 :1, for example, 1 :10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1 :1. Optionally, the first ratio is in the range of 9:10 to 1 :1. In one example, the first ratio is 1 :1, for example, the first adjusted luminance value is 0.

[0092] Referring to Figure 9 In the second stage T2, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by a first luminance difference Δlv1 to obtain a first adjusted luminance value, and the third luminance value of the third sub-pixel sp3 in the respective pixel is increased by a third luminance difference Δlv3 to obtain a third adjusted luminance value.

[0093] In some embodiments, in the second stage T2, the third luminance difference Δlv3 is substantially the same as the first luminance difference Δlv1. By making the third luminance difference Δlv3 substantially the same as the first luminance difference Δlv1, the total luminance value of the respective pixel remains substantially the same.

[0094] In some embodiments, at the second stage T2, the first luminance difference Δlv1 and the first ratio of the first luminance value is in a range of 1:10 to 1:1, for example, 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1:1. Optionally, the first ratio is in a range of 9:10 to 1:1. In one example, the first ratio is 1:1, for example, the first adjusted luminance value is 0.

[0095] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0096] Figure 11 is a diagram showing luminance values of sub-pixels in a respective pixel according to some embodiments of the present disclosure. Figure 12 is a flowchart showing a method of displaying an image according to some embodiments of the present disclosure. Reference is made to Figure 11 and Figure 12In some embodiments, the method of displaying an image comprises detecting a region configured to display a static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame comprising the static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the respective pixel in the static image to a luminance value of a sub-pixel in the respective pixel in the static image; in a first phase T1, decreasing a first luminance value of a first sub-pixel sp1 in the respective pixel to a first adjusted luminance value; increasing a second luminance value of a second sub-pixel sp2 in the respective pixel to a second adjusted luminance value; in the first phase T1, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel sp2 in the respective pixel in the static image to a second adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third sub-pixel value, and the fourth sub-pixel value; in a second phase T2, decreasing the first luminance value of the first sub-pixel sp1 in the respective pixel to a first adjusted luminance value; increasing a fourth luminance value of a fourth sub-pixel sp4 in the respective pixel to a fourth adjusted luminance value; decreasing the second adjusted luminance value of the second sub-pixel sp2 to a second luminance value; in the second phase T2, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the fourth adjusted luminance value of the fourth sub-pixel sp4 in the respective pixel in the static image to a fourth adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second sub-pixel value, the third sub-pixel value, and the fourth adjusted sub-pixel value.

[0097] The inventors of the present disclosure found that by setting the first phase T1 and the second phase T2, the luminance values of the two different sub-pixels are alternately increased, avoiding the problem of residual image in any one sub-pixel with increased luminance value.

[0098] In some embodiments, to achieve the same luminance value, the second sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel. Alternatively, to achieve the same luminance value, the fourth sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel.

[0099] Reference is made to Figure 11 In the first phase T1, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by a first luminance difference Av1 to obtain a first adjusted luminance value, and the second luminance value of the second sub-pixel sp2 in the respective pixel is increased by a second luminance difference Av2 to obtain a second adjusted luminance value.

[0100] In some embodiments, at the first stage T1, the second luminance difference Δlv2 is substantially the same as the first luminance difference Δlv1. By making the second luminance difference Δlv2 substantially the same as the first luminance difference Δlv1, the overall luminance value of the respective pixel remains substantially the same.

[0101] In some embodiments, at the first stage T1, the first luminance difference Δlv1 is in a first ratio with the first luminance value in a range of 1:10 to 1:1, for example, 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1:1. Optionally, the first ratio is in a range of 9:10 to 1:1. In one example, the first ratio is 1:1, for example, the first adjusted luminance value is 0.

[0102] Referring to Figure 11 At the second stage T2, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by the first luminance difference Δlv1 to obtain a first adjusted luminance value, and the fourth luminance value of the fourth sub-pixel sp4 in the respective pixel is increased by the fourth luminance difference Δlv4 to obtain a fourth adjusted luminance value.

[0103] In some embodiments, at the second stage T2, the fourth luminance difference Δlv4 is substantially the same as the first luminance difference Δlv1. By making the fourth luminance difference Δlv4 substantially the same as the first luminance difference Δlv1, the overall luminance value of the respective pixel remains substantially the same.

[0104] In some embodiments, at the second stage T2, the first luminance difference Δlv1 is in a first ratio with the first luminance value in a range of 1:10 to 1:1, for example, 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1:1. Optionally, the first ratio is in a range of 9:10 to 1:1. In one example, the first ratio is 1:1, for example, the first adjusted luminance value is 0.

[0105] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0106] Figure 13 is a graph showing luminance values of sub-pixels in a respective pixel in accordance with some embodiments of the present disclosure. Figure 14is a flowchart illustrating a method of displaying an image in accordance with some embodiments of the present disclosure. Reference is made to Figure 13 and Figure 14 In some embodiments, the method of displaying an image comprises detecting a region configured to display a static image; determining a sub-pixel value of a sub-pixel in a respective pixel in a respective image frame comprising the static image; determining a sub-pixel value of a sub-pixel in a respective pixel in a respective image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the respective pixel in the static image to a luminance value of a sub-pixel in the respective pixel in the static image; in a first phase T1, decreasing a first luminance value of a first sub-pixel sp1 in a respective pixel to a first adjusted luminance value; increasing a second luminance value of a second sub-pixel sp2 in a respective pixel to a second adjusted luminance value; in the first phase T1, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel sp2 in the respective pixel in the static image to a second adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third sub-pixel value, and the fourth sub-pixel value; in a second phase T2, decreasing the first luminance value of the first sub-pixel sp1 in a respective pixel to a first adjusted luminance value; increasing a third luminance value of a third sub-pixel sp3 in a respective pixel to a third adjusted luminance value; decreasing the second adjusted luminance value of the second sub-pixel sp2 to a second luminance value; in the second phase T2, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel sp3 in the respective pixel in the static image to a third adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second sub-pixel value, the third adjusted sub-pixel value, and the fourth sub-pixel value; in a third phase T3, decreasing the first luminance value of the first sub-pixel sp1 in a respective pixel to a first adjusted luminance value; increasing a fourth luminance value of a fourth sub-pixel sp4 in a respective pixel to a fourth adjusted luminance value; decreasing the third adjusted luminance value of the third sub-pixel sp3 to a third luminance value; in the third phase T3, converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; converting the fourth adjusted luminance value of the fourth sub-pixel sp4 in the respective pixel in the static image to a fourth adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, the second sub-pixel value, the third sub-pixel value, and the fourth adjusted sub-pixel value.

[0107] The inventors of the present disclosure found that by setting the first phase T1, the second phase T2 and the third phase T3, the brightness values of different sub-pixels are alternately increased, thereby avoiding the problem of residual image in any one of the sub-pixels with increased brightness value.

[0108] In some embodiments, to achieve the same brightness value, the second sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel. Optionally, to achieve the same brightness value, the third sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel. Optionally, to achieve the same brightness value, the fourth sub-pixel needs a smaller sub-pixel value compared to the first sub-pixel.

[0109] Referring to Figure 13 In the first phase T1, the first brightness value of the first sub-pixel sp1 in the corresponding pixel is reduced by a first brightness difference Δlv1 to obtain a first adjusted brightness value, and the second brightness value of the second sub-pixel sp2 in the corresponding pixel is increased by a second brightness difference Δlv2 to obtain a second adjusted brightness value.

[0110] In some embodiments, in the first phase T1, the second brightness difference Δlv2 is substantially the same as the first brightness difference Δlv1. By making the second brightness difference Δlv2 substantially the same as the first brightness difference Δlv1, the total brightness value of the corresponding pixel remains substantially the same.

[0111] In some embodiments, in the first phase T1, the first brightness difference Δlv1 and the first ratio of the first brightness value are in the range of 1:10 to 1:1, for example, 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10 or 9:10 to 1:1. Optionally, the first ratio is in the range of 9:10 to 1:1. In one example, the first ratio is 1:1, for example, the first adjusted brightness value is 0.

[0112] Referring to Figure 13 In the second phase T2, the first brightness value of the first sub-pixel sp1 in the corresponding pixel is reduced by a first brightness difference Δlv1 to obtain a first adjusted brightness value, and the third brightness value of the third sub-pixel sp3 in the corresponding pixel is increased by a third brightness difference Δlv3 to obtain a third adjusted brightness value.

[0113] In some embodiments, in the second phase T2, the third brightness difference Δlv3 is substantially the same as the first brightness difference Δlv1. By making the third brightness difference Δlv3 substantially the same as the first brightness difference Δlv1, the total brightness value of the corresponding pixel remains substantially the same.

[0114] In some embodiments, at the second stage T2, the first ratio of the first luminance difference Δlv1 to the first luminance value is in a range from 1:10 to 1:1, e.g., 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1:1. Optionally, the first ratio is in a range from 9:10 to 1:1. In one example, the first ratio is 1:1, e.g., the first adjusted luminance value is 0.

[0115] Referring to Figure 13 At the third stage T3, the first luminance value of the first sub-pixel sp1 in the respective pixel is decreased by the first luminance difference Δlv1 to obtain a first adjusted luminance value, and the fourth luminance value of the fourth sub-pixel sp4 in the respective pixel is increased by the fourth luminance difference Δlv4 to obtain a fourth adjusted luminance value.

[0116] In some embodiments, at the third stage T3, the fourth luminance difference Δlv4 is substantially the same as the first luminance difference Δlv1. By making the fourth luminance difference Δlv4 substantially the same as the first luminance difference Δlv1, the total luminance value of the respective pixel remains substantially the same.

[0117] In some embodiments, at the third stage T3, the first ratio of the first luminance difference Δlv1 to the first luminance value is in a range from 1:10 to 1:1, e.g., 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, 8:10 to 9:10, or 9:10 to 1:1. Optionally, the first ratio is in a range from 9:10 to 1:1. In one example, the first ratio is 1:1, e.g., the first adjusted luminance value is 0.

[0118] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0119] Figure 15 is a diagram showing luminance values of sub-pixels in a respective pixel in some embodiments according to the present disclosure. Figure 16 is a flowchart showing a method of displaying an image in some embodiments according to the present disclosure. Reference is made to Figure 15 and Figure 16In some embodiments, the method of displaying an image comprises detecting a region configured to display a static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame comprising the static image; determining a sub-pixel value of a sub-pixel in a respective pixel in the static image in a respective image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the respective pixel in the static image to a luminance value of a sub-pixel in the respective pixel in the static image; reducing a first luminance value of a first sub-pixel sp1 in a respective pixel to a first adjusted luminance value; converting the first adjusted luminance value of the first sub-pixel sp1 in the respective pixel in the static image to a first adjusted sub-pixel value; and displaying the static image using the first adjusted sub-pixel value, a second sub-pixel value, a third sub-pixel value, and a fourth sub-pixel value.

[0120] Reference is made to Figure 15 In some embodiments, the first luminance value of the first sub-pixel sp1 in a respective pixel is reduced by a first luminance difference Δlv1 to obtain the first adjusted luminance value. In some embodiments, the first luminance difference Δlv1 is in a range from 1:10 to 9:10, e.g., 1:10 to 2:10, 2:10 to 3:10, 3:10 to 4:10, 4:10 to 5:10, 5:10 to 6:10, 6:10 to 7:10, 7:10 to 8:10, or 8:10 to 9:10 of a first ratio of the first luminance value.

[0121] In some embodiments, the first sub-pixel is a sub-pixel of a first color. In one example, the first color is blue.

[0122] In some embodiments, the method of displaying an image further comprises, in the first region configured to display the static image, detecting a parameter of a driving transistor of a sub-pixel of a first color in a first time period, and detecting a parameter of a driving transistor of a sub-pixel of a second color in a second time period, wherein the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency, and the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency. Optionally, the first frequency is higher than the second frequency.

[0123] In some embodiments, the method further comprises, in the first region configured to display the static image, detecting a parameter of a driving transistor of a sub-pixel of a third color in a third time period, wherein the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency, the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency, and the parameter of the driving transistor of the sub-pixel of the third color is detected at a third frequency. Optionally, the first frequency is higher than the second frequency, and higher than the third frequency.

[0124] In some embodiments, the method further comprises detecting, in a fourth time period, the parameter of the driving transistor of the sub-pixel of the fourth color in the first area configured to display the static image, wherein the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency, the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency, the parameter of the driving transistor of the sub-pixel of the third color is detected at a third frequency, and the parameter of the driving transistor of the sub-pixel of the fourth color is detected at a fourth frequency. Optionally, the first frequency is higher than the second frequency, higher than the third frequency, and higher than the fourth frequency. The inventors of the present disclosure have found that by making the first frequency higher than the second frequency, higher than the third frequency, and higher than the fourth frequency, the luminance value of the first sub-pixel of the first color can be adjusted in time, thereby reducing the afterimage in the first sub-pixel of the first color.

[0125] In some embodiments, the second frequency, the third frequency, and the fourth frequency are substantially the same. In some embodiments, the first frequency is at least two times (e.g., three times, four times, five times) the second frequency, the third frequency, and the fourth frequency.

[0126] In some embodiments, each of the respective first time periods, each of the respective second time periods, each of the respective third time periods, and each of the respective fourth time periods are substantially the same.

[0127] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color. In one example, the first color is blue, the second color is white, the third color is red, and the fourth color is green.

[0128] In some embodiments, each of the respective first time periods, the respective second time periods, the respective third time periods, and the respective fourth time periods is a total number of rows of sub-pixels in the display panel divided by a frame rate. As used herein, the term “frame rate” refers to a total number of frames of images displayed per second.

[0129] In some embodiments, the parameter is a transconductance parameter of the driving transistor. In some embodiments, the transconductance parameter of the driving transistor can be represented as:

[0130]

[0131] where k represents the transconductance parameter of the driving transistor, Id represents a driving current of the pixel driving circuit, Vgs represents a gate-source voltage, and Vth represents a threshold voltage of the driving transistor.

[0132] Figure 17A sequence of detecting parameters of driving transistors in a display panel is shown in some embodiments according to the present disclosure. Refer to Figure 17 In a respective first time period T1 in the first time period, the method comprises detecting parameters of driving transistors of sub-pixels sps1 of the first color; in a respective second time period T2 in the second time period, the method comprises detecting parameters of driving transistors of sub-pixels sps2 of the second color; in a respective third time period T3 in the third time period, the method comprises detecting parameters of driving transistors of sub-pixels sps3 of the third color; and in a respective fourth time period T4 in the fourth time period, the method comprises detecting parameters of driving transistors of sub-pixels sps4 of the fourth color.

[0133] As shown in Figure 17 , the parameters of the driving transistors of the sub-pixels sps1 of the first color are detected at a first frequency, the parameters of the driving transistors of the sub-pixels sps2 of the second color are detected at a second frequency, the parameters of the driving transistors of the sub-pixels sps3 of the third color are detected at a third frequency, and the parameters of the driving transistors of the sub-pixels sps4 of the fourth color are detected at a fourth frequency. Optionally, the first frequency is higher than the second frequency, higher than the third frequency, and higher than the fourth frequency. Figure 17 In one example depicted in , the first frequency is twice the second frequency, the third frequency, and the fourth frequency.

[0134] In some embodiments, the first time period, the second time period, the third time period, and the fourth time period are arranged in sequence. The minimum repeating sequence comprises T1-T3-T4-T1-T2, where T1 represents a respective first time period, T2 represents a respective second time period, T3 represents a respective third time period, and T4 represents a respective fourth time period.

[0135] The inventors of the present disclosure found that by making the first frequency higher than the second frequency, higher than the third frequency, and higher than the fourth frequency, the luminance value of the first sub-pixel of the first color can be adjusted in time, thereby reducing the afterimage in the first sub-pixel of the first color.

[0136] In another aspect, the present disclosure provides a display device. Figure 18 is a schematic diagram showing a display device in some embodiments according to the present disclosure. Refer to Figure 18The display device can include a processor 1002, a storage medium 1004, a display 1006, a communication module 1008, a database 1010, a peripheral device 1012, and a camera 1014. Certain devices can be omitted and other devices can be included to better describe the relevant embodiments. The display device can include any appropriate type of display panel, such as a plasma display panel, a liquid crystal display (LCD) panel, a touch screen display panel, a projection display panel, a non-smart display panel, a smart display panel, and the like. The display device can also include other computing systems, such as a personal computer (PC), a tablet or a notebook computer, a smart phone, and the like. In addition, the display device can be any appropriate content presentation device capable of presenting any appropriate content. A user can interact with the display device to perform other activities of interest.

[0137] The processor 1002 can include any appropriate one or more processors. The processor 1002 can include multiple cores for multi-threading or parallel processing. The processor 1002 can execute sequences of computer program instructions to perform various processes. The storage medium 1004 can include memory modules (e.g., ROM, RAM, flash memory modules) and mass storage devices (e.g., CD-ROM and hard disks), and the like. The storage medium 1004 can store computer programs to implement various processes when the computer programs are executed by the processor 1002. For example, the storage medium 1004 can store computer programs to implement various algorithms when the computer programs are executed by the processor 1002.

[0138] Further, the communication module 1008 can include certain network interface devices to establish connections through a communication network (e.g., a TV cable network, a wireless network, the Internet). The database 1010 can include one or more databases to store certain data and perform certain operations on the stored data, such as database searches.

[0139] The display 1006 can provide information to a user. The display 1006 can include any appropriate type of computer display device or electronic device display, such as an LCD or OLED-based device. The peripheral device 1012 can include various sensors or other I / O devices, such as a keyboard and a mouse.

[0140] Examples of appropriate display devices include, but are not limited to, e-paper, mobile phones, tablet computers, televisions, monitors, notebook computers, digital photo albums, GPS, and the like. Optionally, the display device is an organic light-emitting diode display device. Optionally, the display device is a micro light-emitting diode display device. Optionally, the display device is a mini light-emitting diode display device.

[0141] In some embodiments, a display apparatus includes a display panel; a memory; and one or more processors. Optionally, the memory and the one or more processors are connected to each other; and the memory stores computer-executable instructions for controlling the one or more processors to perform the following operations: detecting a region configured to display a static image in the display panel; detecting, in the region configured to display the static image, a parameter of a driving transistor of a sub-pixel of a first color for a first time period and detecting a parameter of a driving transistor of a sub-pixel of a second color for a second time period; determining a sub-pixel value of a sub-pixel in a corresponding pixel in the static image in a corresponding image frame including the static image; converting the sub-pixel value of a sub-pixel in the corresponding pixel in the static image to a luminance value of a sub-pixel in the corresponding pixel in the static image; reducing a first luminance value of a first sub-pixel in the corresponding pixel to a first adjusted luminance value; and converting the first adjusted luminance value of the first sub-pixel in the corresponding pixel in the static image to a first adjusted sub-pixel value. Optionally, the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency. Optionally, the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency. Optionally, the first frequency is higher than the second frequency.

[0142] In some embodiments, the memory further stores computer-executable instructions for controlling the one or more processors to: cause the display panel to display the static image using the sub-pixel values including the first adjusted sub-pixel value and the second sub-pixel value.

[0143] In some embodiments, a first luminance value of a first sub-pixel sp1 in the corresponding pixel is reduced by a first luminance difference to obtain a first adjusted luminance value. Optionally, the first luminance difference and the first luminance value have a first ratio in a range of 1:10 to 9:10.

[0144] In some embodiments, the memory further stores computer-executable instructions for controlling the one or more processors to: increase at least a second luminance value of a second sub-pixel in the corresponding pixel to a second adjusted luminance value; convert the adjusted luminance values of the sub-pixels in the corresponding pixel in the static image to adjusted sub-pixel values of the sub-pixels in the corresponding pixel in the static image; and cause the display panel to display the static image using the adjusted sub-pixel values.

[0145] In some embodiments, after the at least the first luminance value of the first sub-pixel in the respective pixel is decreased to the first adjusted luminance value and the at least the second luminance value of the second sub-pixel in the respective pixel is increased to the second adjusted luminance value, the total luminance value of the sub-pixels of the respective pixel remains substantially the same.

[0146] In some embodiments, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value; and the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value. Optionally, the second luminance difference is substantially the same as the first luminance difference.

[0147] In some embodiments, a first ratio of the first luminance difference to the first luminance value is in a range from 9:10 to 1:1.

[0148] In some embodiments, the first adjusted luminance value is 0.

[0149] In some embodiments, the first sub-pixel is a sub-pixel of a first color, and the second sub-pixel is a sub-pixel of a second color, the first color being different from the second color.

[0150] In some embodiments, the memory further stores computer-executable instructions for controlling the one or more processors to: decrease a third luminance value of a third sub-pixel in the respective pixel to a third adjusted luminance value; decrease a fourth luminance value of a fourth sub-pixel in the respective pixel to a fourth adjusted luminance value; increase the second luminance value of the second sub-pixel in the respective pixel to the second adjusted luminance value; convert the second adjusted luminance value of the second sub-pixel in the respective pixel in the static image to a second adjusted sub-pixel value; convert the third adjusted luminance value of the third sub-pixel in the respective pixel in the static image to a third adjusted sub-pixel value; convert the fourth adjusted luminance value of the fourth sub-pixel in the respective pixel in the static image to a fourth adjusted sub-pixel value; and use the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third adjusted sub-pixel value, and the fourth adjusted sub-pixel value to cause the display panel to display the static image.

[0151] In some embodiments, the first luminance value of the first sub-pixel in the corresponding pixel is reduced by a first luminance difference to obtain the first adjusted luminance value; the third luminance value of the third sub-pixel in the corresponding pixel is reduced by a third luminance difference to obtain the third adjusted luminance value; the fourth luminance value of the fourth sub-pixel in the corresponding pixel is reduced by a fourth luminance difference to obtain the fourth adjusted luminance value; and the second luminance value of the second sub-pixel in the corresponding pixel is increased by a second luminance difference to obtain the second adjusted luminance value. Optionally, the second luminance difference is substantially the same as the sum of the first luminance difference, the third luminance difference and the fourth luminance difference.

[0152] In some embodiments, the first ratio of the first luminance difference to the first luminance value is substantially the same as the second ratio of the third luminance difference to the third luminance value, and is substantially the same as the third ratio of the fourth luminance difference to the fourth luminance value.

[0153] In some embodiments, the first ratio, the second ratio and the third ratio are in the range of 6:10 to 8:10.

[0154] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color; and the first color, the second color, the third color and the fourth color are four different colors.

[0155] In some embodiments, the memory further stores computer-executable instructions for controlling the one or more processors to perform the following operations: in a first stage, decreasing the first luminance value of the first sub-pixel in the respective pixel to the first adjusted luminance value; increasing a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value; in the first stage, converting the first adjusted luminance value of the first sub-pixel in the respective pixel in the static image to the first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel in the respective pixel in the static image to a second adjusted sub-pixel value; and using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third sub-pixel value, and the fourth sub-pixel value to cause the display panel to display the static image; in a second stage, decreasing the first luminance value of the first sub-pixel in the respective pixel to the first adjusted luminance value; increasing a third luminance value of a third sub-pixel in the respective pixel to a third adjusted luminance value; decreasing the second adjusted luminance value of the second sub-pixel to the second luminance value; and in the second stage, converting the first adjusted luminance value of the first sub-pixel in the respective pixel in the static image to the first adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel in the respective pixel in the static image to a third adjusted sub-pixel value; and using sub-pixel values including the first adjusted sub-pixel value and the second sub-pixel value to cause the display panel to display the static image.

[0156] In some embodiments, in the first stage, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value, and the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value; in the second stage, the first luminance value of the first sub-pixel in the respective pixel is decreased by the first luminance difference to obtain the first adjusted luminance value, and the third luminance value of the third sub-pixel in the respective pixel is increased by a third luminance difference to obtain the third adjusted luminance value. Optionally, in the first stage, the second luminance difference is substantially the same as the first luminance difference. Optionally, in the second stage, the third luminance difference is substantially the same as the first luminance difference.

[0157] In some embodiments, the first luminance difference and the first luminance value have a first ratio in a range from 9:10 to 1:1.

[0158] In some embodiments, the first adjusted luminance value is 0.

[0159] In another aspect, the present disclosure provides a computer program product comprising a non-transitory, tangible computer-readable medium having computer-readable instructions thereon. In some embodiments, the computer-readable instructions are executable by one or more processors to cause the one or more processors to perform the following operations: detecting a region configured to display a static image; detecting, in a first region configured to display the static image, a parameter of a driving transistor of a sub-pixel of a first color for a first time period and a parameter of a driving transistor of a sub-pixel of a second color for a second time period; determining a sub-pixel value of a sub-pixel in a corresponding pixel in the static image in a corresponding image frame comprising the static image; converting the sub-pixel value of a sub-pixel in the corresponding pixel in the static image to a luminance value of a sub-pixel in the corresponding pixel in the static image; reducing a first luminance value of a first sub-pixel in the corresponding pixel to a first adjusted luminance value; and converting the first adjusted luminance value of the first sub-pixel in the corresponding pixel in the static image to a first adjusted sub-pixel value. Optionally, the parameter of the driving transistor of the sub-pixel of the first color is detected at a first frequency. Optionally, the parameter of the driving transistor of the sub-pixel of the second color is detected at a second frequency. Optionally, the first frequency is higher than the second frequency.

[0160] In some embodiments, the computer-readable instructions are executable by one or more processors to cause the one or more processors to further perform the following operation: causing the display panel to display the static image using the sub-pixel values comprising the first adjusted sub-pixel value and the second sub-pixel value.

[0161] In some embodiments, the first luminance value of the first sub-pixel sp1 in the corresponding pixel is reduced by a first luminance difference to obtain the first adjusted luminance value. Optionally, the first luminance difference is within a range of 1:10 to 9:10 of a first ratio of the first luminance value.

[0162] In some embodiments, the computer-readable instructions are executable by one or more processors to cause the one or more processors to further perform the following operation: increasing at least a second luminance value of a second sub-pixel in the corresponding pixel to a second adjusted luminance value; converting the adjusted luminance values of the sub-pixels in the corresponding pixel in the static image to adjusted sub-pixel values of the sub-pixels in the corresponding pixel in the static image; and causing the display panel to display the static image using the adjusted sub-pixel values.

[0163] In some embodiments, after the at least the first luminance value of the first sub-pixel in the respective pixel is decreased to the first adjusted luminance value and the at least the second luminance value of the second sub-pixel in the respective pixel is increased to the second adjusted luminance value, the total luminance value of the sub-pixels of the respective pixel remains substantially the same.

[0164] In some embodiments, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value; and the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value. Optionally, the second luminance difference is substantially the same as the first luminance difference.

[0165] In some embodiments, a first ratio of the first luminance difference to the first luminance value is in a range from 9:10 to 1:1.

[0166] In some embodiments, the first adjusted luminance value is 0.

[0167] In some embodiments, the first sub-pixel is a sub-pixel of a first color, and the second sub-pixel is a sub-pixel of a second color, the first color being different from the second color.

[0168] In some embodiments, the computer-readable instructions are executable by the one or more processors to cause the one or more processors to further perform operations of: decreasing a third luminance value of a third sub-pixel in the respective pixel to a third adjusted luminance value; decreasing a fourth luminance value of a fourth sub-pixel in the respective pixel to a fourth adjusted luminance value; increasing the second luminance value of the second sub-pixel in the respective pixel to the second adjusted luminance value; converting the second adjusted luminance value of the second sub-pixel in the respective pixel in the static image to a second adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel in the respective pixel in the static image to a third adjusted sub-pixel value; converting the fourth adjusted luminance value of the fourth sub-pixel in the respective pixel in the static image to a fourth adjusted sub-pixel value; and using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third adjusted sub-pixel value, and the fourth adjusted sub-pixel value to cause the display panel to display the static image.

[0169] In some embodiments, the first luminance value of the first sub-pixel in the corresponding pixel is reduced by a first luminance difference to obtain the first adjusted luminance value; the third luminance value of the third sub-pixel in the corresponding pixel is reduced by a third luminance difference to obtain the third adjusted luminance value; the fourth luminance value of the fourth sub-pixel in the corresponding pixel is reduced by a fourth luminance difference to obtain the fourth adjusted luminance value; and the second luminance value of the second sub-pixel in the corresponding pixel is increased by a second luminance difference to obtain the second adjusted luminance value. Optionally, the second luminance difference is substantially the same as the sum of the first luminance difference, the third luminance difference and the fourth luminance difference.

[0170] In some embodiments, the first ratio of the first luminance difference to the first luminance value is substantially the same as the second ratio of the third luminance difference to the third luminance value, and is substantially the same as the third ratio of the fourth luminance difference to the fourth luminance value.

[0171] In some embodiments, the first ratio, the second ratio and the third ratio are in the range of 6:10 to 8:10.

[0172] In some embodiments, the first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, the third sub-pixel is a sub-pixel of a third color, and the fourth sub-pixel is a sub-pixel of a fourth color; and the first color, the second color, the third color and the fourth color are four different colors.

[0173] In some embodiments, the computer-readable instructions are executable by the one or more processors to cause the one or more processors to further perform: in the first stage, decreasing the first luminance value of the first sub-pixel in the respective pixel to the first adjusted luminance value; increasing a second luminance value of a second sub-pixel in the respective pixel to a second adjusted luminance value; in the first stage, converting the first adjusted luminance value of the first sub-pixel in the respective pixel in the static image to the first adjusted sub-pixel value; converting the second adjusted luminance value of the second sub-pixel in the respective pixel in the static image to a second adjusted sub-pixel value; and using the first adjusted sub-pixel value, the second adjusted sub-pixel value, the third sub-pixel value, and the fourth sub-pixel value to cause the display panel to display the static image; in the second stage, decreasing the first luminance value of the first sub-pixel in the respective pixel to the first adjusted luminance value; increasing a third luminance value of a third sub-pixel in the respective pixel to a third adjusted luminance value; decreasing the second adjusted luminance value of the second sub-pixel to the second luminance value; and in the second stage, converting the first adjusted luminance value of the first sub-pixel in the respective pixel in the static image to the first adjusted sub-pixel value; converting the third adjusted luminance value of the third sub-pixel in the respective pixel in the static image to a third adjusted sub-pixel value; and using sub-pixel values including the first adjusted sub-pixel value and the second sub-pixel value to cause the display panel to display the static image.

[0174] In some embodiments, in the first stage, the first luminance value of the first sub-pixel in the respective pixel is decreased by a first luminance difference to obtain the first adjusted luminance value, and the second luminance value of the second sub-pixel in the respective pixel is increased by a second luminance difference to obtain the second adjusted luminance value; in the second stage, the first luminance value of the first sub-pixel in the respective pixel is decreased by the first luminance difference to obtain the first adjusted luminance value, and the third luminance value of the third sub-pixel in the respective pixel is increased by a third luminance difference to obtain the third adjusted luminance value. Optionally, in the first stage, the second luminance difference is substantially the same as the first luminance difference. Optionally, in the second stage, the third luminance difference is substantially the same as the first luminance difference.

[0175] In some embodiments, a first ratio of the first luminance difference to the first luminance value is in a range from 9:10 to 1:1.

[0176] In some embodiments, the first adjusted luminance value is 0.

[0177] All or some of the steps in the methods disclosed above, the functions of the modules / units in the systems, apparatuses, can be implemented as software, firmware, hardware, or any suitable combination thereof. In a hardware implementation, the division of the functional modules / units referred to in the above description does not necessarily correspond to the division of physical components. For example, one physical component can have multiple functions, or one function or step can be performed by several physical components working together. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer readable storage media, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, it should be appreciated by those skilled in the art that computer storage media generally can embody computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and can include any information delivery media.

[0178] The foregoing description of embodiments of the application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise form disclosed. The description was presented as illustrative of the broadest aspects of the application that are and were anticipated to be within the scope of the application. Obviously, many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to best explain the principles of the application and its best mode of practical application to thereby enable others skilled in the art to best utilize the application and various embodiments with various modifications as are suited to the particular use or implementation. The scope of the application is intended to be defined by the claims appended hereto and their equivalents, wherein all terms are meant to be construed in their broadest reasonable sense unless otherwise indicated. Accordingly, the terms "the invention," "the present invention," and the like, do not necessarily limit the scope of the claims to the specific embodiment described. Reference to an "example embodiment" or "exemplary embodiment" of the application does not necessarily mean that the same embodiment is essential to the application, and that the application cannot be implemented without the same. The application is limited only by the claims appended hereto and equivalents thereof. Further, these claims can make reference to using "a first," "a second," and the like, followed by a term or element. Such terms should be interpreted as naming elements for purposes of common usage, and do not necessarily connote the numbering of the elements, unless otherwise indicated. Any advantages and benefits provided by the described embodiments can not apply to all embodiments of the application. It should be understood that those skilled in the art can make variations and modifications to the described embodiments without departing from the scope of the application. In addition, elements and components of the disclosure described can be combined in a single embodiment, and vice versa.

Claims

1. A display device, comprising: Display panel; Memory; as well as One or more processors; Wherein, the memory and the one or more processors are connected to each other; and The memory stores computer-executable instructions that control the one or more processors to perform the following operations: Detect the region configured to display a static image; In the area configured to display the static image, the parameters of the driving transistors of the sub-pixels of the first color are detected during a first time period, and the parameters of the driving transistors of the sub-pixels of the second color are detected during a second time period. Determine the sub-pixel value of a sub-pixel in a corresponding pixel of a corresponding image frame that includes the static image; The sub-pixel value of the corresponding sub-pixel in the static image is converted into the brightness value of the corresponding sub-pixel in the static image; Reduce the first brightness value of the first sub-pixel in the corresponding pixel to a first adjusted brightness value; and The first adjusted brightness value of the first sub-pixel in the corresponding pixel of the static image is converted into a first adjusted sub-pixel value; Among them, the parameters of the driving transistor of the sub-pixel of the first color are detected at a first frequency; The parameters of the driving transistor of the sub-pixel of the second color are detected at a second frequency; and The first frequency is higher than the second frequency; The first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, and the first color is different from the second color.

2. The display device according to claim 1, wherein, The memory also stores computer-executable instructions for controlling the one or more processors to display the static image on the display panel using subpixel values ​​including the first adjusted subpixel value and the second subpixel value.

3. The display device according to claim 2, wherein, The first brightness value of the first sub-pixel in the corresponding pixel is reduced by a first brightness difference to obtain the first adjusted brightness value; and The first ratio of the first brightness difference to the first brightness value is in the range of 1:10 to 9:

10.

4. The display device according to claim 1, wherein, The memory also stores computer-executable instructions for controlling the one or more processors to perform the following operations: Increase at least the second brightness value of the second sub-pixel in the corresponding pixel to the second adjusted brightness value; The second adjusted brightness value of the second sub-pixel in the corresponding pixel of the static image is converted into the second adjusted sub-pixel value of the second sub-pixel in the corresponding pixel of the static image; as well as The static image is displayed on the display panel using the first and second adjustment subpixel values.

5. The display device according to claim 4, wherein, After reducing at least the first brightness value of the first sub-pixel in the corresponding pixel to the first adjusted brightness value, and increasing at least the second brightness value of the second sub-pixel in the corresponding pixel to the second adjusted brightness value, the total brightness value of the sub-pixels of the corresponding pixel remains substantially the same.

6. The display device according to claim 4, wherein, The first brightness value of the first sub-pixel in the corresponding pixel is reduced by a first brightness difference to obtain the first adjusted brightness value; The second brightness value of the second sub-pixel in the corresponding pixel is increased by a second brightness difference to obtain the second adjusted brightness value; and The second brightness difference is essentially the same as the first brightness difference.

7. The display device according to claim 6, wherein, The first ratio of the first brightness difference to the first brightness value is in the range of 9:10 to 1:

1.

8. The display device according to claim 4, wherein, The first brightness adjustment value is 0.

9. The display device according to claim 1, wherein, The memory also stores computer-executable instructions for controlling the one or more processors to perform the following operations: Reduce the third brightness value of the third sub-pixel in the corresponding pixel to the third adjusted brightness value; Reduce the fourth brightness value of the fourth sub-pixel in the corresponding pixel to the fourth adjusted brightness value; Increase the second brightness value of the second sub-pixel in the corresponding pixel to the second adjusted brightness value; The second adjusted brightness value of the second sub-pixel in the corresponding pixel of the static image is converted into a second adjusted sub-pixel value; The third adjusted brightness value of the third sub-pixel in the corresponding pixel of the static image is converted into a third adjusted sub-pixel value; The fourth adjusted brightness value of the fourth sub-pixel in the corresponding pixel of the static image is converted into a fourth adjusted sub-pixel value; as well as The first adjustment subpixel value, the second adjustment subpixel value, the third adjustment subpixel value, and the fourth adjustment subpixel value are used to make the display panel display the static image; Wherein, the third sub-pixel is a sub-pixel of the third color, and the fourth sub-pixel is a sub-pixel of the fourth color; and The first color, the second color, the third color, and the fourth color are four different colors.

10. The display device according to claim 9, wherein, The first brightness value of the first sub-pixel in the corresponding pixel is reduced by a first brightness difference to obtain the first adjusted brightness value; The third brightness value of the third sub-pixel in the corresponding pixel is reduced by a third brightness difference to obtain the third adjusted brightness value; The fourth brightness value of the fourth sub-pixel in the corresponding pixel is reduced by a fourth brightness difference to obtain the fourth adjusted brightness value; The second brightness value of the second sub-pixel in the corresponding pixel is increased by a second brightness difference to obtain the second adjusted brightness value; as well as The second brightness difference is substantially the same as the sum of the first brightness difference, the third brightness difference, and the fourth brightness difference.

11. The display device according to claim 10, wherein, The first ratio of the first brightness difference to the first brightness value is substantially the same as the second ratio of the third brightness difference to the third brightness value, and is substantially the same as the third ratio of the fourth brightness difference to the fourth brightness value.

12. The display device according to claim 11, wherein, The first ratio, the second ratio, and the third ratio are in the range of 6:10 to 8:

10.

13. The display device according to claim 1, wherein, The memory also stores computer-executable instructions for controlling the one or more processors to perform the following operations: In the first stage, the first brightness value of the first sub-pixel in the corresponding pixel is reduced to the first adjusted brightness value; the second brightness value of the second sub-pixel in the corresponding pixel is increased to the second adjusted brightness value. In the first stage, the first adjusted brightness value of the first sub-pixel in the corresponding pixel of the static image is converted into the first adjusted sub-pixel value; the second adjusted brightness value of the second sub-pixel in the corresponding pixel of the static image is converted into the second adjusted sub-pixel value; and the display panel displays the static image using the sub-pixel value including the first adjusted sub-pixel value and the second sub-pixel value of the second sub-pixel in the corresponding pixel. In the second stage, the first brightness value of the first sub-pixel in the corresponding pixel is reduced to the first adjusted brightness value; Increase the third brightness value of the third sub-pixel in the corresponding pixel to the third adjusted brightness value; Reduce the second adjusted brightness value of the second sub-pixel to the second brightness value; as well as In the second stage, the first adjusted brightness value of the first sub-pixel in the corresponding pixel of the static image is converted into the first adjusted sub-pixel value; the third adjusted brightness value of the third sub-pixel in the corresponding pixel of the static image is converted into the third adjusted sub-pixel value; and the display panel displays the static image using the sub-pixel value including the first adjusted sub-pixel value and the second sub-pixel value.

14. The display device according to claim 13, wherein, In the first stage, the first brightness value of the first sub-pixel in the corresponding pixel is reduced by a first brightness difference to obtain the first adjusted brightness value, and the second brightness value of the second sub-pixel in the corresponding pixel is increased by a second brightness difference to obtain the second adjusted brightness value. In the first stage, the second brightness difference is substantially the same as the first brightness difference; In the second stage, the first brightness value of the first sub-pixel in the corresponding pixel is reduced by a first brightness difference to obtain the first adjusted brightness value, and the third brightness value of the third sub-pixel in the corresponding pixel is increased by a third brightness difference to obtain the third adjusted brightness value. as well as In the second stage, the third brightness difference is substantially the same as the first brightness difference.

15. The display device according to claim 14, wherein, The first ratio of the first brightness difference to the first brightness value is in the range of 9:10 to 1:

1.

16. The display device according to claim 13, wherein, The first brightness adjustment value is 0.

17. A method for displaying an image, comprising: The area configured to display a static image in the display panel is detected; In the area configured to display the static image, the parameters of the driving transistors of the sub-pixels of the first color are detected during a first time period, and the parameters of the driving transistors of the sub-pixels of the second color are detected during a second time period. Determine the sub-pixel value of a sub-pixel in a corresponding pixel of a corresponding image frame that includes the static image; The sub-pixel value of the corresponding sub-pixel in the static image is converted into the brightness value of the corresponding sub-pixel in the static image; Reduce the first brightness value of the first sub-pixel in the corresponding pixel to a first adjusted brightness value; as well as The first adjusted brightness value of the first sub-pixel in the corresponding pixel of the static image is converted into a first adjusted sub-pixel value; Among them, the parameters of the driving transistor of the sub-pixel of the first color are detected at a first frequency; The parameters of the driving transistor of the sub-pixel of the second color are detected at a second frequency; and The first frequency is higher than the second frequency; The first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, and the first color is different from the second color.

18. A computer program product comprising a non-transient tangible computer-readable medium having computer-readable instructions thereon, the computer-readable instructions being executable by a processor to cause the processor to perform: Detect the region configured to display a static image; In the area configured to display the static image, the parameters of the driving transistors of the sub-pixels of the first color are detected during a first time period, and the parameters of the driving transistors of the sub-pixels of the second color are detected during a second time period. Determine the sub-pixel value of a sub-pixel in a corresponding pixel of a corresponding image frame that includes the static image; The sub-pixel value of the corresponding sub-pixel in the static image is converted into the brightness value of the corresponding sub-pixel in the static image; Reduce the first brightness value of the first sub-pixel in the corresponding pixel to a first adjusted brightness value; as well as The first adjusted brightness value of the first sub-pixel in the corresponding pixel of the static image is converted into a first adjusted sub-pixel value; Among them, the parameters of the driving transistor of the sub-pixel of the first color are detected at a first frequency; The parameters of the driving transistor of the sub-pixel of the second color are detected at a second frequency; and The first frequency is higher than the second frequency; The first sub-pixel is a sub-pixel of a first color, the second sub-pixel is a sub-pixel of a second color, and the first color is different from the second color.

Images