CN111650996A - Image display method and device, mobile terminal and storage medium - Google Patents

Image display method and device, mobile terminal and storage medium Download PDF

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Publication number
CN111650996A
CN111650996A CN202010437356.7A CN202010437356A CN111650996A CN 111650996 A CN111650996 A CN 111650996A CN 202010437356 A CN202010437356 A CN 202010437356A CN 111650996 A CN111650996 A CN 111650996A
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display
area
sub
region
image
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张弓
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1686—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being an integrated camera
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application discloses an image display method, an image display device, a mobile terminal and a storage medium. Wherein, the method comprises the following steps: acquiring an image to be displayed; the display interface comprises a first display area, a second display area and a boundary area, wherein the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the boundary area at least comprises the intersection line; adjusting the gray scale value of at least part of pixels of the corresponding junction area in the image to be displayed so as to enable the gray scale difference between the junction area and the adjacent row/column pixels at the two sides of the junction area to be smaller than a set threshold value; and displaying the image to be displayed. By means of the mode, the influence of the bright boundary can be reduced, and the display effect is improved.

Description

Image display method and device, mobile terminal and storage medium
Technical Field
The present application relates to the field of display technologies, and in particular, to an image display method and apparatus, a mobile terminal, and a storage medium.
Background
With the development of display technology, the screen technology of display devices is continuously updated. While high-quality picture display is pursued, screen occupation ratio is also an object of continuous innovation. The screen occupation ratio refers to the ratio of the display area of the mobile phone to the total area of the screen. In order to improve the screen occupation ratio and realize full-screen display, the camera technology under the screen is generated according to the background of the era, the camera technology under the screen is about to hide a camera (such as a front camera of a mobile phone) under the screen, so that the display screen occupies the surface of the whole display device, a display area above the camera is used for screen display when the camera is closed, and the camera is switched to a transparent state when being opened, so that the camera is convenient to pick up.
Disclosure of Invention
An embodiment of the present application provides an image display method, including: acquiring an image to be displayed; the display interface comprises a first display area, a second display area and a boundary area, wherein the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the boundary area at least comprises the intersection line; adjusting the gray scale value of at least part of pixels of the corresponding junction area in the image to be displayed so as to enable the gray scale difference between the junction area and the adjacent row/column pixels at the two sides of the junction area to be smaller than a set threshold value; and displaying the image to be displayed.
Another aspect of the embodiments of the present application provides a display device, including: the acquisition module is used for acquiring an image to be displayed; the display interface comprises a first display area, a second display area and a boundary area, wherein the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the boundary area at least comprises the intersection line; the adjusting module is used for adjusting the gray scale value of at least part of pixels of the corresponding junction area in the image to be displayed so as to enable the gray scale difference between the junction area and the adjacent row/column pixels at the two sides of the junction area to be smaller than a set threshold value; and the display module is used for displaying the image to be displayed.
Another aspect of the embodiments of the present application provides a mobile terminal, including: the mobile terminal comprises a processor, a memory and a display component, wherein the memory and the display component are connected with the processor; the display assembly comprises a display interface, the display interface is used for displaying an image to be displayed and comprises a first display area, a second display area and a junction area, the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the junction area at least comprises the intersection line; the memory is used for storing program data, and the processor is used for executing the program data to realize the image display method.
Yet another aspect of the embodiments of the present application provides a computer-readable storage medium, in which program data are stored, and when the program data are executed by a processor, the program data are used to implement the image display method.
The beneficial effect of this application is: different from the prior art, the display panel is provided with a first display area with low pixel density and a second display area with normal pixel density, wherein the first display area is used for passing through an optical path of the camera under the screen, and the brightness of the first display area is lower than that of the second display area due to the difference of the pixel density. After the luminance through increaseing first display area, can form bright border at first display area and second display area juncture, this application sets up a boundary area through adjacent department in first display area and second display area, adjust boundary area's luminance, make the luminance difference of two adjacent lines/rows less, further let two display area's luminance smooth transition, on the one hand in the luminance of increaseing first display area, make first display area can not show luminance because of pixel density is lower, on the other hand to boundary area luminance control, solve two display area luminance differences great problem that forms bright border at the juncture, thereby display effect has been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flowchart of an embodiment of an image display method provided in the present application;
FIG. 2 is a schematic structural diagram of a display interface of the present application;
FIG. 3 is a flowchart illustrating an embodiment of step S12 in FIG. 1;
FIG. 4 is a schematic view of the structure of the area A in FIG. 2;
FIG. 5 is a schematic flow chart diagram illustrating another embodiment of step S12 in FIG. 1;
FIG. 6 is another schematic view of the structure of the area A in FIG. 2;
FIG. 7 is a schematic flow chart of a further embodiment of step S12 in FIG. 1;
FIG. 8 is a schematic view of a further structure of region A in FIG. 2;
FIG. 9 is a schematic structural diagram of an embodiment of a display device provided in the present application;
FIG. 10 is a block diagram of an embodiment of a mobile terminal provided herein;
FIG. 11 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided in the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.
The terms "first" and "second" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
At present, in order to improve the transmittance of light in the display area above the camera and reduce diffraction to achieve normal photographing, the pixel density of pixels in the light-transmitting area is usually reduced to form a low-density pixel area, but when the pixels in the low-density pixel area and pixels in other display areas except the low-density pixel area receive the same pixel data, the brightness of the low-density pixel area is smaller than that of the other display areas, which results in non-uniformity of the brightness of the display interface. Further, in order to achieve the uniformity of the luminance of the low-density pixel region and the luminance of the other display regions, the luminance of the low-density pixel region is usually increased, that is, the gray-scale value of the pixels in the low-density pixel region is increased, but this may cause a bright boundary to appear at the intersection between the low-density pixel region and the other display regions.
According to the method, a junction area is arranged at the junction of a low-density pixel area (a first display area) and a second display area (other display areas except the low-density pixel area), the gray scale difference of pixels of adjacent rows/columns at two sides of the junction area is smaller than a set threshold value by adjusting the gray scale value of the pixels of an image to be displayed in the junction area, namely, the brightness of the junction area is adjusted, so that the brightness difference of the adjacent rows/columns is smaller, the brightness of the two display areas is further stably transited, on one hand, the brightness of the first display area is increased, so that the first display area cannot display the brightness lower due to the low pixel density, on the other hand, the brightness of the junction area is adjusted, the problem that the brightness difference of the two display areas is larger, and a bright boundary is formed at the junction is solved, and the display effect is improved.
The image display method can be applied to the mobile terminal. The mobile terminal provided in the embodiment of the present invention may be any mobile terminal having a display Interface, where the display Interface is used to display a User Interface (UI). For example, the mobile terminal may be a mobile phone, a mobile computer, a tablet computer, a Personal Digital Assistant (PDA), a media player, a smart television, a smart wearable device (such as a smart watch, smart glasses, and a smart bracelet), an electronic reader, a handheld game console, a Point of Sales (POS), a vehicle-mounted mobile terminal (vehicle-mounted computer), and the like. The mobile terminal may include a display screen, which may include a display interface and a non-display interface. Alternatively, in other embodiments, the display screen may include only a display interface or a non-display interface may be omitted. In some embodiments, the display screen may be one, and is disposed on a front panel of the mobile terminal; in other embodiments, the number of the display screens may be at least two, and the display screens are respectively arranged on different surfaces of the mobile terminal or are in a folding design; in still other embodiments, the display may be a flexible display, disposed on a curved surface or on a folded surface of the mobile terminal. Alternatively, the Display screen may be made of Liquid Crystal Display (LCD), Organic Light-Emitting Diode (OLED), or the like. Generally, the display screen OLED is made of a material. In the following, the present application will be exemplified by a mobile phone.
Referring to fig. 1 to 2, fig. 1 is a schematic flow chart of an embodiment of an image display method provided in the present application, and fig. 2 is a schematic structural diagram of a display interface in the present application.
In this embodiment, the image display method includes:
step S11: acquiring an image to be displayed; the image to be displayed is used for being displayed on a display interface, the display interface comprises a first display area, a second display area and a junction area, the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the junction area at least comprises the intersection line.
The image to be displayed may include graphics, text, icons, video, and any combination thereof.
Alternatively, the shape of the display interface may be a regular figure or an irregular figure. The regular pattern is not limited to rectangles, squares, trapezoids, parallelograms, rhombuses, circles, ellipses. The regular pattern is not necessarily a completely regular pattern, for example, the regular pattern may be a rectangle with 4 corners forming an arc, and the specific shape of the display interface is not limited in this embodiment. Similarly, optionally, the first display area may also be a regular pattern or an irregular pattern, the second display area may also be a regular pattern or an irregular pattern, and the boundary area may also be a regular pattern or an irregular pattern.
As shown in fig. 2, the display interface 10 includes a first display area 11 and a second display area 12. The first display area 11 is rectangular, and the second display area 12 is irregular. The pixel density of the first display region 11 is less than the pixel density of the second display region. The pixel density is the number of pixels per inch of screen. Optionally, the boundary of the first display area 11 overlaps at least one boundary of the display interface 10. In general, the display interface 10 includes four boundaries, i.e., two short boundaries and two long boundaries, the short boundaries and the long boundaries being interconnected. As shown in fig. 2, a boundary of the first display region 11 overlaps a short boundary of the display interface 10. In other embodiments, the boundary of the first display region 11 may not overlap with the boundary of the display interface 10. The first display area 11 and the second display area 12 are adjacent to each other and form an intersection line a. The display interface 10 includes a boundary area (not shown) including at least an intersection line a. Alternatively, the interface area may be located in the first display area 11, or in the second display area 12, or partially in the first display area 11 and partially in the second display area 12. The interface region includes a portion of the pixels in at least one row and at least one column of pixels.
Optionally, the interface region may include a part of pixels in one row and one column of pixels, and the interface region may be located in the first display region or the second display region; the interface area may also include a portion of the pixels in the rows and columns of pixels, in which case the interface area may be located in the first display area and/or the second display area.
Optionally, after the image to be displayed is obtained, the image to be displayed is further processed correspondingly, so as to obtain the gray-scale values of the pixels at the positions in the display interface corresponding to the image to be displayed. Optionally, the image to be displayed may be processed by a component method, a maximum value method, an average value method, or a weighted average method, so as to obtain the gray-scale value of the pixel at each position in the display interface corresponding to the image to be displayed, and the specific implementation process is not described here again.
Optionally, before the step S12, determining whether the image to be displayed is at least partially located in the boundary area, if so, performing the step S12, and if not, performing the step S13. In this embodiment, whether the image to be displayed is at least partially located in the boundary region is determined, so that the pixel gray scale value of the image to be displayed outside the boundary region can be prevented from being lowered, the flow is simplified, and the image display efficiency is improved.
Optionally, whether the display image is partially located in the boundary area may be determined according to a position in the display interface where the gray-scale value of the pixel of the image to be displayed corresponds to.
Step S12: and adjusting the gray scale value of at least part of pixels corresponding to the boundary area in the image to be displayed so as to enable the gray scale difference between the boundary area and the adjacent row/column pixels at the two sides of the boundary area to be smaller than a set threshold value.
The set threshold value can be selected according to actual conditions. Generally, the smaller the threshold is set, the better the effect of the boundary region in transitioning the luminance of the first display region and the second display region is.
The gray scale is a change in luminance between the brightest and darkest, and is divided into a plurality of parts. So as to control the screen brightness corresponding to the signal input. Each digital image is composed of a plurality of dots, also called pixels (pixels), each of which can usually represent a plurality of different colors, and is composed of three sub-pixels of red, green and blue (RGB). The light source behind each sub-pixel may exhibit different brightness levels. And the gray levels represent gradation levels of different brightness from the darkest to the brightest. The more the intermediate levels are, the more exquisite the picture effect can be presented. Taking 8bit panel as an example, the image can represent 2 to the power of 8, which is equal to 256 luminance levels, and we refer to it as 256 gray levels. Each pixel on the display screen is combined by red, green and blue with different brightness levels to finally form different color points. That is, the color change of each dot on the screen is actually caused by the gray scale change of the three RGB sub-pixels constituting the dot.
When the image to be displayed is displayed in the boundary area, the gray scale value of at least part of pixels corresponding to the boundary area in the image to be displayed is adjusted, so that the gray scale difference between the boundary area and the adjacent row/column pixels at the two sides of the boundary area is smaller than the set threshold value. Alternatively, the gray-scale value of the pixel may be adjusted by controlling the driving signal output from the driving chip IC.
Alternatively, the image to be displayed may be displayed only in a partial region in the boundary region, and the other partial region is not displayed. The luminance of the pixels in the non-display area is zero, and the corresponding gray-scale value is already the minimum gray-scale value, so the gray-scale value of the pixels in the other non-display area cannot be reduced. It is understood that 256 gray scale values (0-255) are taken as an example, wherein 0 gray scale is completely black and 225 gray scale is completely white. Therefore, before this step, the brightness of the pixels in the other areas that are not displayed is zero, that is, the gray scale value is 0, and cannot be adjusted down any more, so this step is to adjust the gray scale value of at least a part of the pixels in the corresponding boundary area in the image to be displayed.
Optionally, the gray scale values of at least some pixels of the boundary area in the image to be displayed may be adjusted according to the position of the boundary area. For example, when the boundary region is located in the first display region, the gray scale value of the image to be displayed may be gradually reduced from the side of the boundary region away from the second display region to the side close to the second display region; when the boundary area is located in the second display area, gradually increasing the gray scale value of the image to be displayed from one side of the boundary area far away from the first display area to the other side of the boundary area close to the first display area; when the boundary area is partially located in the first display area and partially located in the second display area, the gray scale value of the image to be displayed can be gradually reduced from one side of the boundary area, which is far away from the second display area, to one side, which is close to the second display area, of the partial boundary area located on one side of the first display area, and the gray scale value of the image to be displayed can be gradually increased from one side of the boundary area, which is far away from the first display area, to the other side, which is close to the first display area, of the boundary area.
Optionally, the interface region includes a plurality of continuous sub-display regions, each sub-display region including a portion of pixels in at least one row and at least one column of pixels.
Referring to fig. 3 to 4, fig. 3 is a schematic flowchart illustrating an embodiment of step S12 in fig. 1, and fig. 4 is a schematic structural diagram of area a in fig. 2.
In some possible embodiments, the first display area includes a first brightness area and a boundary area, i.e., the boundary area is located in the first display area. In this embodiment, the gray-scale value of the image to be displayed is gradually reduced from the side of the boundary area close to the first luminance area to the other side of the boundary area far from the first luminance area, wherein the reduction range of the gray-scale value is larger as the pixel far from the first luminance area is farther, so that the gray-scale difference between the boundary area and the adjacent row/column pixels at the two sides of the boundary area is smaller than the set threshold.
Step S12 may specifically include sub-steps S121 and S122.
Step S121: and allocating adjustment values to the plurality of sub-display areas, wherein the adjustment value of the sub-display area close to the first brightness area is larger than the adjustment value of the sub-display area far away from the first brightness area.
Wherein the adjustment value is in the range of [ -225, 0).
Specifically, a maximum adjustment value is allocated to the sub-display area closest to the first brightness area in the plurality of sub-display areas; allocating an adjustment minimum value for a sub-display area which is farthest from the first brightness area in the plurality of sub-display areas; counting the number of the sub-display areas; the difference value between the maximum value and the minimum value is equally divided according to the number of the sub display areas; to obtain an adjustment offset; and determining the adjustment amount of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset, so that the adjustment value of the sub-display area close to the first brightness area is larger than the adjustment value of the sub-display area far away from the first brightness area.
In a specific example, as shown in fig. 4, the display interface 20 includes a first display area 21 and a second display area 22. The first display area 21 includes a boundary area 23 and a first luminance area 24. The interface area 23 includes 4 sub-display areas, namely a first sub-display area 231, a second sub-display area 232, a third sub-display area 233 and a fourth sub-display area 234. The sub-display region farthest from the first luminance region 24 is the first sub-display region 231, and the sub-display region closest to the first luminance region 24 is the fourth sub-display region 234. The second sub display region 232 and the third sub display region 233 are located between the first sub display region 231 and the third sub display region 233. Each sub-display area includes a part of pixels in one row and one column.
Specifically, the fourth sub-display area 234 is assigned with the adjustment maximum value ΔmaxThe first sub-display region 231 is assigned the adjustment minimum value Δ of-20min-80, and counting to obtain the number n of the sub-display areas as 4; and then, the difference value between the adjustment maximum value and the adjustment minimum value is equally divided according to the number of the sub display areas so as to obtain an adjustment offset r. Alternatively, the adjustment offset is a difference obtained by dividing a difference between the adjustment minimum value and the adjustment maximum value by the number of the sub-display regions minus 1, and the specific formula may be that r is (Δ ═ b)min-Δmax) V (n-1), substituting the numerical value, and calculating the adjustment offset r ═ Δ ═ bymin-Δmax) (n-1) ═ (-80- (-20))/(4-1) ═ -20; determining the adjustment value of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset, wherein the sequence from far to near the first brightness area 24 is sequentially assigned with the sequence number i, which is 1,2,3 and 4, namely deltai＝Δmin- (i-1) × r. Adjustment value Δ of the first sub-display region 2311＝ΔminThe adjustment value of the second sub-display area 232 is-80, and is Δ2＝-80-(2-1)*(-20) to-60, and the adjustment value of the third sub-display region 233 is Δ2The adjustment value Δ of-80- (3-1) × (-20) ═ 40 in the fourth sub-display region 2343＝Δmax-20. The adjustment value Δ of the fourth sub-display region 234 can be obtained4＝-20>Adjustment value Δ of third sub-display region 2333＝-40>The adjustment value Δ of the second sub-display area 2322＝-60>Adjustment value Δ of the first sub-display region 2311That is, the adjustment value of the sub display region close to the first luminance region 24 is greater than the adjustment value of the sub display region far from the first luminance region 24.
Step S122: and adding the gray-scale values of at least part of pixels in each sub-display area and the corresponding adjusting values to reduce the gray-scale values of each sub-display area.
Specifically, the gray-scale values of the pixels of the image to be displayed in the plurality of continuous sub-display areas of the first display area are respectively S1-Sn, and the adjustment values are respectively delta1～ΔnThe data after the addition operation is S1 ═ S1+ Δ1，S2’＝S2+Δ2,…...,Sn-1’＝Sn-1+Δn-1，Sn’＝Sn+Δn。
For example, as shown in fig. 4, the boundary area 23 is adjacent to the second display area 22 and the first luminance area 24, and the gray-scale difference between the boundary area 23 and the adjacent row/column pixels on both sides of the boundary area 23 is smaller than the set threshold by reducing the gray-scale value of the pixel of the image to be displayed in the boundary area 23. For example, before adjustment, the gray scale value of the pixels in the first sub-display region 231 is 200, that is, the gray scale values of the sub-display regions in the boundary region 23 are all 200, and the gray scale value of the pixels in the second display region 22 is 100; after adjustment, the gray scale value of the pixel in the first luminance region is still 200, the gray scale value of the pixel in the second display region is still 100, the luminance of the first sub-display region in the boundary region is 120, the luminance of the second sub-display region is 140, the luminance of the third sub-display region is 160, and the luminance of the fourth sub-display region is 180, so that the gray scale differences between the boundary region and the adjacent row/column pixels on both sides of the boundary region are all 20, that is, the gray scale difference between the adjacent row/column pixels in the first sub-display region and the second display region is 120-.
Referring to fig. 5 to 6, fig. 5 is a schematic flowchart illustrating another embodiment of step S12 in fig. 1, and fig. 6 is a schematic structural diagram illustrating an area a in fig. 2.
In other possible embodiments, the second display area includes a second brightness area and a boundary area, i.e., the boundary area is located in the second display area. In this embodiment, the gray-scale value of the image to be displayed is gradually increased from the side of the boundary area close to the second luminance area to the other side of the boundary area far from the second luminance area, wherein the increasing range of the gray-scale value is larger as the pixel far from the second luminance area is farther, so that the gray-scale difference between the boundary area and the adjacent row/column pixels at the two sides of the boundary area is smaller than the set threshold.
Step S12 may specifically include sub-steps S123 and S124.
Step S123: and allocating adjustment values to the plurality of sub-display areas, wherein the adjustment value of the sub-display area close to the second brightness area is smaller than the adjustment value of the sub-display area far away from the second brightness area.
Wherein the adjustment value is in the range of (0, 225%).
The first sub-display area, the second sub-display area, the third sub-display area and the fourth sub-display area are gradually far away from the second brightness area, so that the adjustment values of the first sub-display area, the second sub-display area, the third sub-display area and the fourth sub-display area are gradually increased, namely the adjustment value delta of the first sub-display area1<Adjustment value delta of second sub-display area2<Adjustment value delta of third sub-display area3<Adjustment value delta of fourth sub-display area4So that the brightness of the first sub-display area, the second sub-display area, the third sub-display area and the fourth sub-display area is gradually increased after adjustment.
Specifically, an adjustment minimum value is assigned to a sub-display region closest to the second luminance region among the plurality of sub-display regions; allocating an adjustment maximum value to a sub-display area which is farthest from the second brightness area in the plurality of sub-display areas; counting the number of the sub-display areas; the difference value of the maximum adjusting value and the minimum adjusting value is equally divided according to the number of the sub display areas to obtain an adjusting offset; and determining the adjustment value of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset.
In a specific example, as shown in fig. 6, the display interface 30 includes a first display area 31 and a second display area 32. The second display area 32 includes a boundary area 33 and a second luminance area 35. The interface area 33 includes 4 sub-display areas, namely a first sub-display area 331, a second sub-display area 332, a third sub-display area 333 and a fourth sub-display area 334. The sub-display region closest to the second luminance region 35 is the first sub-display region 331, and the sub-display region farthest from the second luminance region 35 is the fourth sub-display region 334. The second sub display region 332 and the third sub display region 333 are located between the first sub display region 331 and the fourth sub display region 334. Each sub-display area includes a part of pixels in one row and one column.
Specifically, the first sub-display area 331 is assigned the adjustment minimum value Δ min20; assign an adjustment maximum value Δ to the fourth sub-display region 334max80; and counting to obtain the number n of the sub-display areas as 4; and then, the difference value between the adjustment maximum value and the adjustment minimum value is equally divided according to the number of the sub display areas so as to obtain an adjustment offset r. Alternatively, the adjustment offset is a difference obtained by dividing a difference between the adjustment minimum value and the adjustment maximum value by the number of the sub-display regions minus 1, and the specific formula may be that r is (Δ ═ b)max-Δmin) V (n-1), substituting the numerical value, and calculating the adjustment offset r ═ Δ ═ bymax-Δmin) (n-1) ═ (80-20)/(4-1) ═ 20; determining the adjustment value of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset, wherein the sequence from far to near the second brightness area 35 is sequentially assigned with the sequence number, the sequence number i is 1,2,3 and 4, namely deltai＝Δmin+ (i-1) × r. Adjustment value delta of the first sub-display area 3311＝ΔminThe adjustment value of the second sub-display region 332 is Δ 202＝820+(2-1) × 20 ═ 40, and the adjustment value of the third sub-display region 333 is Δ 320+ (3-1) × 20 ═ 60, and the adjustment value Δ of the fourth sub-display region 3344＝Δmax＝80。
Step S124: and adding the gray-scale values of at least part of pixels in each sub-display area and the corresponding adjusting values to increase the gray-scale values of each sub-display area.
For example, as shown in fig. 6, the boundary area 33 is adjacent to the first display area 32 and the second luminance area 35, and the gray-scale difference between the boundary area 33 and the adjacent row/column pixels on both sides of the boundary area 33 is smaller than the set threshold by reducing the gray-scale value of the pixel of the image to be displayed in the boundary area 33. For example, before adjustment, the gray scale value of the pixel in the first display area 331 is 200, and the gray scale value of the pixel in the second display area 32 is 100, i.e., the gray scale values of the sub-display areas in the boundary area 33 are all 100; after the adjustment, the gray scale value of the pixel in the second luminance region 35 is still 100, the gray scale value of the pixel in the first display region 31 is still 200, the luminance of the first sub-display region 331 in the boundary region 33 is 120, the luminance of the second sub-display region 332 is 140, the luminance of the third sub-display region 333 is 160, and the luminance of the fourth sub-display region 334 is 180, so that the gray scale difference between the adjacent rows/columns of pixels on both sides of the boundary region 33 and the boundary region 33 is 20, that is, the gray scale difference between the adjacent rows/columns of pixels in the first sub-display region 331 and the second luminance region 35 is 120-.
Referring to fig. 7 to 8, a flowchart of another embodiment of step S12 in fig. 7 is shown; fig. 8 is a schematic view of a further structure of the region a.
In some further possible embodiments, the boundary area includes a first boundary area and a second boundary area, the first display area includes a first boundary area and a first brightness area, and the second display area includes a second boundary area and a second brightness area, that is, the first boundary area is located in the first display area, and the second boundary area is located in the second display area. In this embodiment, the gray-scale value of the image to be displayed is gradually decreased from the side of the first boundary region close to the first luminance region to the other side of the first boundary region far from the first luminance region, wherein the more far away from the pixel of the first luminance region, the larger the decrease amplitude of the gray-scale value is; gradually increasing the gray-scale value of the image to be displayed from one side of the second boundary area close to the second brightness area to the other side of the second boundary area far away from the second brightness area, wherein the increasing range of the gray-scale value is larger as the pixel far away from the second brightness area is farther, so that the gray-scale difference between the boundary area and the adjacent row/column pixels at the two sides of the boundary area is smaller than the set threshold value.
Step S12 may specifically include sub-steps S125 and S126.
Step S125: and allocating adjustment values to the plurality of sub-display areas, wherein the adjustment value of the sub-display area close to the first brightness area in the first interface area is larger than that of the sub-display area far away from the first brightness area, and the adjustment value of the sub-display area close to the second brightness area in the second interface area is smaller than that of the sub-display area far away from the second brightness area.
Wherein the adjustment value in the first interface region ranges from [ -225, 0 ] and the adjustment value in the second interface region ranges from (0, 225 ].
For a description of allocating adjustment values to the multiple sub-display areas of the first boundary area, reference may be made to the description in step S121, and for a description of allocating adjustment values to the multiple sub-display areas of the second boundary area, reference may be made to the description in step S123, which is not described herein again. Optionally, the adjusted gray-scale value of the pixel of the sub-display area close to the second boundary area in the first boundary area is smaller than the adjusted gray-scale value of the pixel of the sub-display area close to the first boundary area in the second display area.
In a specific example, as shown in fig. 8, the display interface 40 includes a first display area 41 and a second display area 42. The second display region 42 includes a boundary region 43 and a second luminance region 45. The interface area 43 includes 4 sub-display areas, which are a first sub-display area 431, a second sub-display area 432, a third sub-display area 433, and a fourth sub-display area 434. The third sub-display area 433 and the fourth sub-display area 434 are the first boundary area 46 located in the first display area 41, and the first sub-display area 431 and the second sub-display area 432 are the second boundary area 47 located in the second display area 42. The sub display region closest to the second luminance region 45 is a first sub display region 431, and the sub display region closest to the first luminance region 44 is a fourth sub display region 434. The second sub display area 432 and the third sub display area 433 are positioned between the first sub display area 431 and the third sub display area 433. Each sub-display area includes a part of pixels in one row and one column.
Step S126: and adding the gray-scale values of at least part of the pixels in each sub-display area and the corresponding adjusting values to adjust the gray-scale values of each sub-display area in the first interface area to be low and adjust the gray-scale values of each sub-display area in the second interface area to be high.
For example, as shown in fig. 8, the adjustment value of the first sub-display area 431 is 20, the adjustment value of the second sub-display area 432 is 40, the adjustment value of the third sub-display area 433 is-40, the adjustment value of the fourth sub-display area 434 is-20, before the adjustment, the gray scale value of the pixel of the first display area 41 is 200, that is, the gray scale value of the pixel of the first luminance area 44 and the first boundary area 46 is also 200, and the gray scale value of the pixel of the second display area 42 is 100, that is, the gray scale value of the pixel of the second luminance area 45 and the second boundary area 47 is also 100; after the adjustment, the gray scale value of the pixel in the first sub-display region 431 is 100+ 20-120, the gray scale value of the pixel in the second sub-display region 432 is 100+ 40-140, the gray scale value of the pixel in the third sub-display region 433 is 200+ (-40) -160, and the gray scale value of the pixel in the fourth sub-display region 434 is 200+ (-20) -180. It can be obtained that the gray scale differences of the adjacent rows/columns of pixels on both sides of the boundary area 43 and the boundary area 43 are 20, i.e. the gray scale differences of the adjacent rows/columns of pixels in the first sub-display area 431 and the second luminance area 45 are 120-.
It is understood that the sequence between the above steps is not fixed, for example, there is no precedence relationship between steps S121 and S123.
In this embodiment, a first display area having a low pixel density for passing an optical path of the off-screen camera and a second display area having a normal pixel density are provided on the display panel, and the luminance of the first display area may be lower than that of the second display area due to a difference in pixel density. After the luminance through increaseing first display area, can form bright border at first display area and second display area juncture, this application sets up a boundary area through adjacent department in first display area and second display area, adjust boundary area's luminance, make the luminance difference of two adjacent lines/rows less, further let two display area's luminance smooth transition, on the one hand in the luminance of increaseing first display area, make first display area can not show luminance because of pixel density is lower, on the other hand to boundary area luminance control, solve two display area luminance differences great problem that forms bright border at the juncture, thereby display effect has been improved.
When the boundary region includes a portion of pixels in a row or a column of pixels, although the influence of the bright boundary can be reduced, a dark edge appears visually in some pure color pictures, such as R \ G \ B pictures, to reduce the display effect. Furthermore, the display effect is further improved by setting the boundary area comprising the plurality of sub-display areas and gradually reducing or increasing the gray-scale value of the pixels of the plurality of sub-display areas, so that the brightness of the first display area can be smoothly transited to the brightness of the second display area, the influence of dark edges under a pure-color picture is reduced.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
The display device 50 includes an acquisition module 51, an adjustment module 52, and a display module 53. An obtaining module 51, configured to obtain an image to be displayed; the image to be displayed is used for being displayed on a display interface, the display interface comprises a first display area, a second display area and a junction area, the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the junction area at least comprises the intersection line. The adjusting module 52 is configured to adjust gray scale values of at least a portion of pixels in the boundary region corresponding to the image to be displayed, so that a gray scale difference between the boundary region and adjacent rows/columns of pixels on two sides of the boundary region is smaller than a set threshold. The display module 53 is used for displaying an image to be displayed.
In some embodiments, the first display region includes a first luminance region and a boundary region. The adjusting module 52 is specifically configured to: gradually reducing the gray-scale value of the image to be displayed from one side of the boundary area close to the first brightness area to the other side of the boundary area far away from the first brightness area, wherein the more far away from the pixels of the first brightness area, the larger the reduction amplitude of the gray-scale value is.
In some embodiments, the second display region includes a second luminance region and a boundary region. The adjusting module 52 is specifically configured to: gradually increasing the gray-scale value of the image to be displayed from one side of the boundary area close to the second brightness area to the other side of the boundary area far away from the second brightness area, wherein the increasing amplitude of the gray-scale value is larger the farther the pixel is away from the second brightness area.
In some embodiments, the interface region includes a first interface region and a second interface region, the first display region includes a first luminance region and a first interface region, and the second display region includes a second luminance region and a second interface region. The adjusting module 52 is specifically configured to: gradually reducing the gray-scale value of the part of the image to be displayed from one side of the first boundary area close to the first brightness area to the other side of the first boundary area far away from the first brightness area, wherein the more far away from the pixel of the first brightness area, the larger the reduction amplitude of the gray-scale value is; gradually increasing the gray-scale value of the image to be displayed from one side of the second boundary area close to the second brightness area to the other side of the second boundary area far away from the second brightness area, wherein the increasing amplitude of the gray-scale value is larger the farther the pixel is from the second brightness area.
In some embodiments, the interface region includes a plurality of contiguous sub-display regions, each sub-display region including at least one row and at least one column of pixels. The adjusting module 52 is specifically configured to: allocating adjustment values to the plurality of sub-display areas, wherein the adjustment value of the sub-display area close to the first brightness area is larger than that of the sub-display area far away from the first brightness area, and the range of the adjustment values is [ -225, 0); and adding the gray-scale values of at least part of pixels in each sub-display area and the corresponding adjusting values to reduce the gray-scale values of each sub-display area.
In some embodiments, the adjustment module 52 is specifically configured to: distributing an adjustment maximum value for a sub-display area which is closest to the first brightness area in the plurality of sub-display areas, distributing an adjustment minimum value for a sub-display area which is farthest from the first brightness area in the plurality of sub-display areas, and counting the number of the sub-display areas; the difference value of the maximum adjusting value and the minimum adjusting value is equally divided according to the number of the sub display areas to obtain an adjusting offset; and determining the adjustment amount of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset.
In some embodiments, the interface region includes a plurality of consecutive sub-display regions, each sub-display region including a portion of the pixels in at least one row and at least one column of pixels. The adjusting module 52 is specifically configured to: and adding the gray-scale values of at least part of pixels in each sub-display area and the corresponding adjustment values to increase the gray-scale value of each sub-display area.
In some embodiments, the adjustment module 52 is specifically configured to: distributing an adjustment minimum value for the sub-display area which is closest to the second brightness area in the plurality of sub-display areas, distributing an adjustment maximum value for the sub-display area which is farthest from the second brightness area in the plurality of sub-display areas, and counting the number of the sub-display areas; the difference value of the maximum adjusting value and the minimum adjusting value is equally divided according to the number of the sub display areas to obtain an adjusting offset; and determining the adjustment amount of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset.
In some embodiments, the display device 50 further includes a determining module (not shown) for determining whether the image to be displayed is at least partially located in the boundary region; if yes, the step of reducing the gray-scale value of at least part of the pixels of the corresponding boundary area in the image to be displayed is executed.
For the specific description of the obtaining module 51, the adjusting module 52, the displaying module 53, and the first determining module in this embodiment, please refer to the description of the corresponding positions in the above method embodiments, which is not described herein again.
Referring to fig. 10, fig. 10 is a schematic structural diagram of an embodiment of a mobile terminal provided in the present application.
The mobile terminal 60 includes a processor 61, and a memory 62 and a display component 63 coupled to the processor 61. The display module 63 includes a display interface, the display interface is used for displaying an image to be displayed, the display interface includes a first display area, a second display area and a boundary area, the pixel density of the first display area is smaller than the pixel density of the second display area, the first display area and the second display area are adjacent to each other and form an intersection line, and the boundary area at least includes an intersection line. The memory 62 is used for storing program data, and the processor 61 is used for executing the program data to realize the image display method in any of the above embodiments.
Processor 61 may include one or more processing cores, such as a 6-core processor, an 8-core processor, and so forth. The processor may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable gate Array), and a PLA (Programmable Logic Array). The processor 61 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 61 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content that the display screen needs to display. In some embodiments, the processor 61 may further include an AI (artificial intelligence) processor for processing a calculation operation related to machine learning.
Memory 62 may include one or more computer-readable storage media, which may be non-transitory. The memory 62 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 62 is used to store program data for execution by a processor to implement the image display methods provided by the method embodiments herein.
In some embodiments, the mobile terminal 60 further includes a camera assembly (not shown) disposed on the non-display surface of the display assembly 63 and corresponding to the first display area, such that an optical path of the camera assembly passes through the first display area. Wherein the camera assembly is used for capturing images or videos. Optionally, the camera assembly comprises a front camera and a rear camera. Typically, the front camera is disposed on the front panel of the mobile terminal 60 and the rear camera is disposed on the rear of the terminal.
Referring to fig. 11, fig. 11 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided in the present application.
The computer-readable storage medium 70 has stored therein program data 71, and the program data 71, when executed by the processor, is used to implement the image display method in any of the embodiments described above.
The computer-readable storage medium 70 may be a medium that can store program data, such as a usb disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, or may be a server that stores the program data, and the server can send the stored program data to other devices for operation, or can self-operate the stored program data.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims (13)

1. An image display method, comprising:
acquiring an image to be displayed; the image to be displayed is used for being displayed on a display interface, the display interface comprises a first display area, a second display area and a boundary area, the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the boundary area at least comprises the intersection line;
adjusting the gray scale value of at least part of pixels corresponding to the boundary area in the image to be displayed so as to enable the gray scale difference between the boundary area and the adjacent row/column pixels at two sides of the boundary area to be smaller than a set threshold value;
and displaying the image to be displayed.
2. The method of claim 1, wherein the first display area comprises a first brightness area and the interface area,
the adjusting the gray scale value of at least part of the pixels corresponding to the boundary region in the image to be displayed comprises:
gradually reducing the gray-scale value of the image to be displayed from one side of the boundary area close to the first brightness area to the other side of the boundary area far away from the first brightness area, wherein the reduction amplitude of the gray-scale value is larger the farther the pixel is from the first brightness area.
3. The method of claim 1, wherein the second display area comprises a second brightness area and the interface area,
the adjusting the gray scale value of at least part of the pixels corresponding to the boundary region in the image to be displayed comprises:
gradually increasing the gray-scale value of the image to be displayed from one side of the boundary area close to the second brightness area to the other side of the boundary area far away from the second brightness area, wherein the increasing amplitude of the gray-scale value is larger the farther the pixel is from the second brightness area.
4. The method of claim 1, wherein the interface region comprises a first interface region and a second interface region, wherein the first display region comprises a first brightness region and the first interface region, wherein the second display region comprises a second brightness region and the second interface region,
the adjusting the gray scale value of at least part of the pixels corresponding to the boundary region in the image to be displayed comprises:
gradually reducing the gray-scale value of the part of the image to be displayed from the side of the first boundary area close to the first brightness area to the other side of the first boundary area far away from the first brightness area, wherein the more far away from the pixel of the first brightness area, the larger the reduction amplitude of the gray-scale value is;
gradually increasing the gray-scale value of the image to be displayed from the side of the second boundary area close to the second brightness area to the other side of the second boundary area far away from the second brightness area, wherein the increasing amplitude of the gray-scale value is larger the farther the pixel of the second brightness area is.
5. The method according to any one of claims 2 or 4, wherein the interface region comprises a plurality of consecutive sub-display regions, each of the sub-display regions comprising a portion of pixels in at least one row and at least one column of pixels;
gradually reducing the gray-scale value of the part of the image to be displayed, wherein the farther away from the pixel of the first brightness area, the larger the reduction amplitude of the gray-scale value is, including:
assigning adjustment values to the plurality of sub-display regions, wherein the adjustment values for the sub-display regions closer to the first luminance region are greater than the adjustment values for the sub-display regions farther from the first luminance region, the adjustment values ranging from [ -225, 0);
and adding the gray-scale values of at least part of pixels in each sub-display area and the corresponding adjusting values to reduce the gray-scale values of each sub-display area.
6. The method of claim 5,
the allocating adjustment values to the plurality of sub-display regions includes:
assigning an adjustment maximum value to the sub-display region that is closest to the first luminance region among the plurality of sub-display regions, and,
assigning an adjustment minimum value to the sub-display region farthest from the first luminance region among the plurality of sub-display regions,
counting the number of the sub-display areas;
equally dividing the difference value between the adjustment maximum value and the adjustment minimum value according to the number of the sub-display areas to obtain an adjustment offset;
and determining the adjustment amount of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset.
7. The method according to any of claims 3 or 4, wherein the interface region comprises a plurality of consecutive sub-display regions, each sub-display region comprising a portion of pixels of at least one row and at least one column of pixels,
gradually increasing the gray scale value of the image to be displayed, wherein the farther away from the pixel of the second luminance area, the greater the increasing amplitude of the gray scale value is, including:
assigning adjustment values to the plurality of sub-display regions, wherein the adjustment value of the sub-display region close to the second brightness region is smaller than the adjustment value of the sub-display region far from the second brightness region, and the range of the adjustment values is (0, 225 ];
and adding the gray-scale values of at least part of pixels in each sub-display area and the corresponding adjusting values to increase the gray-scale values of each sub-display area.
8. The method of claim 7,
the allocating adjustment values to the plurality of sub-display regions includes:
assigning an adjustment minimum value to the sub-display region that is closest to the second luminance region among the plurality of sub-display regions, and,
assigning an adjustment maximum value to the sub display region farthest from the second luminance region among the plurality of sub display regions,
counting the number of the sub-display areas;
equally dividing the difference value between the adjustment maximum value and the adjustment minimum value according to the number of the sub-display areas to obtain an adjustment offset;
and determining the adjustment amount of each sub-display area according to the adjustment maximum value, the adjustment minimum value and the adjustment offset.
9. The method of claim 1,
before the adjusting the gray-scale value of at least part of the pixels corresponding to the boundary region in the image to be displayed, the method includes:
judging whether the image to be displayed is at least partially positioned in the boundary area;
and if so, executing a step of adjusting the gray-scale value of at least part of pixels corresponding to the boundary area in the image to be displayed.
10. A display device, characterized in that the display device comprises:
the acquisition module is used for acquiring an image to be displayed; the image to be displayed is used for being displayed on a display interface, the display interface comprises a first display area, a second display area and a boundary area, the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the boundary area at least comprises the intersection line;
the adjusting module is used for adjusting the gray scale values of at least part of pixels corresponding to the boundary area in the image to be displayed so as to enable the gray scale difference between the boundary area and the adjacent row/column pixels at two sides of the boundary area to be smaller than a set threshold value;
and the display module is used for displaying the image to be displayed.
11. A mobile terminal, characterized in that the mobile terminal comprises a processor and a memory and display component connected to the processor;
the display assembly comprises a display interface, the display interface is used for displaying an image to be displayed and comprises a first display area, a second display area and a junction area, the pixel density of the first display area is smaller than that of the second display area, the first display area and the second display area are adjacent and form an intersection line, and the junction area at least comprises the intersection line;
the memory is for storing program data, and the processor is for executing the program data to implement the image display method of any one of claims 1-9.
12. The mobile terminal of claim 11,
the mobile terminal further comprises a camera assembly, wherein the camera assembly is arranged on the non-display surface of the display assembly and corresponds to the first display area, so that a light path of the camera assembly passes through the first display area.
13. A computer-readable storage medium, in which program data are stored, which program data, when being executed by a processor, are adapted to carry out the image display method according to any one of claims 1 to 9.
CN202010437356.7A 2020-05-21 2020-05-21 Image display method and device, mobile terminal and storage medium Pending CN111650996A (en)

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