CN112686805A - Image display method and electronic equipment - Google Patents
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Abstract
The application provides an image display method and an electronic device, wherein the method comprises the following steps: the method comprises the steps of obtaining an image to be displayed, and displaying the image to be displayed on a display screen, wherein when the image to be displayed is displayed on the display screen, at least two pixel units which are distributed on the display screen according to a first dimension are controlled to display the same image pixel value of the image to be displayed, the first dimension is the dimension corresponding to the bending of a curved surface part, and the same pixel point is displayed by controlling a plurality of pixel units of the curved surface part, so that the pixel point of the image to be displayed on the curved surface part is stretched, and therefore, when the display screen is viewed, the deformation of the curved surface part can be reduced.
Description
Technical Field
The present application relates to the field of image processing technologies, and relates to, but is not limited to, an image display method and an electronic device.
Background
With the rapid development of scientific technology, people no longer satisfy two-dimensional flat display screens (called flat screens for short), and especially in the aspects of intelligent terminals, wearable equipment and the like, because curved display screens (called curved screens for short) have the advantages of thinner and lighter screens, increased visual angle, convenience for holding and the like, and are more and more popular with people.
The curved screen is mainly characterized in that the display area is not a plane, but a convex surface or a concave surface, or a combined surface formed by a plane and two convex surfaces. At present, the display scheme of the curved screen still adopts the display scheme that image pixels in the traditional planar screen are uniformly displayed on the screen, but because the curved screen has a radian, an image displayed by the curved screen is imaged to human eyes, the radian part can present a lens effect, so that the displayed image has deformation, and particularly, the deformation is more obvious in the edge area of the curved screen, so that the visual experience is influenced.
Disclosure of Invention
In view of the above, embodiments of the present application provide an image display method, an image display apparatus, an electronic device, and a computer-readable storage medium.
The technical scheme of the embodiment of the application is realized as follows:
the embodiment of the application provides an image display method, which comprises the following steps:
obtaining an image to be displayed;
displaying the image to be displayed through a display screen;
wherein, the displaying the image to be displayed through the display screen comprises:
controlling at least two pixel units arranged according to a first dimension on the display screen to display the same image pixel value, wherein the same image pixel value belongs to the image to be displayed; the first dimension is a dimension corresponding to a curvature of a curved portion of the display screen.
In some embodiments, the displaying the image to be displayed through a display screen includes:
determining a first image of the image to be displayed, which belongs to a first display area, and a second image of the image to be displayed, which belongs to a second display area; the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a curved surface part of the display screen;
controlling the pixel unit corresponding to the plane part to display based on each image pixel value of the first image;
processing the second image;
controlling a pixel unit corresponding to the curved surface part to display based on each image pixel value of the processed second image; so that the pixel values of the image displayed by at least two pixel units of the curved surface part are the same.
In some embodiments, said processing said second image comprises:
obtaining display parameter information, wherein the display parameter information is used for representing the curvature of each pixel unit included in the curved surface part of the display screen;
processing the second image based on the display parameter information.
In some embodiments, said processing said second image based on said display parameter information comprises:
based on the curvature of each pixel unit, stretching each image pixel point of the second image along the direction far away from the first image in the first dimension, wherein the number of the image pixel points increased by stretching is in direct proportion to the curvature of the corresponding pixel unit, so that at least two pixel units arranged side by side on the display screen display the same image pixel value;
and deleting image pixel points of the second image along the direction close to the first image in the first dimension, wherein the number of the deleted image pixel points is equal to that of the image pixel points increased by stretching.
In some embodiments, the method further comprises:
obtaining first position information of a human eye relative to a planar portion of the display screen, the first position information including at least angle information;
when the angle information is determined to be smaller than a preset angle threshold value, second position information of the human eyes relative to the display screen after the change is obtained;
and controlling the display screen to update and display the image to be displayed according to the second position information.
In some embodiments, the controlling the display screen to update and display the image to be displayed according to the second position information includes:
determining a first image of the image to be displayed, a second image of the image to be displayed and a third image of the image to be displayed, wherein the first image belongs to a first display area, the second image belongs to a second display area and the third image belongs to a third display area;
wherein the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a first curved surface portion of the display screen, and the third display area corresponds to a second curved surface portion of the display screen; the second display area faces the human eyes, and the third display area faces away from the human eyes;
controlling the pixel unit corresponding to the plane part to display based on each pixel value of the first image;
controlling the pixel unit corresponding to the first curved surface part to display based on each pixel value of the second image; so that one pixel unit of the first curved surface part displays one image pixel value;
processing the third image;
controlling a pixel unit corresponding to the second curved surface part to display based on each image pixel value of the processed third image; so that the pixel values of the image displayed by at least two pixel units of the second curved surface part are the same.
An embodiment of the present application provides an image display device, the device including:
the first obtaining module is used for obtaining an image to be displayed;
the display module is used for displaying the image to be displayed through a display screen;
wherein, the display module includes:
the first display unit is used for controlling at least two pixel units which are arranged on the display screen according to a first dimension to display the same image pixel value, and the same image pixel value belongs to the image to be displayed; the first dimension is a dimension corresponding to a curvature of a curved portion of the display screen.
An embodiment of the present application provides an electronic device, which includes:
an apparatus body;
the flexible display screen is used for displaying an image to be displayed and is arranged on the equipment body to form a plane part and a curved surface part of the display screen; the planar portion is composed of a first pixel unit array, and the curved portion is composed of a second pixel unit array;
wherein the sizes of the first pixel units included in the first pixel unit array are the same; the second pixel units included in the second pixel unit array are different in size of each second pixel unit arranged according to the first dimension and the same in size of each second pixel unit arranged according to the second dimension, and the first dimension is a dimension corresponding to the curvature of the curved surface portion.
An embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are configured to execute the steps of the image display method.
The embodiment of the application provides an image display method, an image display device, electronic equipment and a computer readable storage medium, wherein the method comprises the following steps: the method comprises the steps of obtaining an image to be displayed, and displaying the image to be displayed on a display screen, wherein when the image to be displayed is displayed on the display screen, at least two pixel units which are distributed on the display screen according to a first dimension are controlled to display the same image pixel value of the image to be displayed, the first dimension is the dimension corresponding to the bending of a curved surface part of the display screen, and the same pixel point is displayed by controlling a plurality of pixel units of the curved surface part, so that the pixel point of the image to be displayed on the curved surface part is stretched, and therefore, when the display screen is viewed, the deformation of the curved surface part can be reduced.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.
Fig. 1 is a schematic flow chart of an implementation of an image display method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of another implementation of an image display method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another implementation of the image display method according to the embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a display screen provided in an embodiment of the present application;
FIG. 6 is a schematic diagram of a screen pixel structure according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an image display device according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an image display device according to an embodiment of the present application.
Detailed Description
In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the attached drawings, the described embodiments should not be considered as limiting the present application, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments, and may be combined with each other without conflict.
The following description will be added if a similar description of "first \ second \ third" appears in the application file, where the terms "first \ second \ third" merely distinguish similar objects and do not represent a specific ordering with respect to the objects, and it should be understood that "first \ second \ third" may be interchanged with a specific order or sequence as permitted, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the application.
Based on the problems in the related art, embodiments of the present application provide an image display method, which is applied to an image display device. The method provided by this embodiment can be implemented by a computer program, and when the computer program is executed, the steps in the image display method provided by this embodiment are completed. In some embodiments, the computer program may be executed by a processor in an image display device. Fig. 1 is a schematic flow chart of an implementation of an image display method provided in an embodiment of the present application, and as shown in fig. 1, the method includes:
step S101, obtaining an image to be displayed.
In the embodiment of the present application, the image display device for obtaining the image to be displayed may be a device having a display screen, such as a computer or a mobile terminal, where the display screen includes a curved surface portion, that is, the display screen is a curved surface screen.
In the embodiment of the present application, obtaining an image to be displayed may be implemented as: obtaining a source image; processing the source image according to the resolution of the display screen to obtain an image to be displayed, wherein the resolution of the image to be displayed is equal to the resolution of the display screen, namely, the number of transverse pixel points of the image to be displayed is adjusted according to the number of transverse pixel units included in the display screen, and the number of longitudinal pixel points of the image to be displayed is adjusted according to the number of longitudinal pixel units included in the display screen, so that the number of transverse pixel units included in the display screen is equal to the number of transverse pixel points of the image to be displayed, and the number of longitudinal pixel units included in the display screen is equal to the number of longitudinal pixel points of the image to be displayed. The obtained source image may be a picture or a video pre-stored in a storage space of the image display device, or may be a picture or a video received from other devices in real time. When the source image is a video, a frame of picture needs to be selected from the video as an image to be displayed.
And S102, displaying the image to be displayed through a display screen.
In the embodiment of the application, after the image display device acquires the image to be displayed, the image pixel value of the image to be displayed can be displayed by controlling the pixel unit included in the display screen, so that the image to be displayed is displayed on the display screen. In actual display, step S102 may be implemented as: step S1020, controlling at least two pixel units arranged according to a first dimension on the display screen to display a same image pixel value, wherein the same image pixel value belongs to the image to be displayed; the first dimension is a dimension corresponding to a curvature of a curved portion of the display screen.
In the related art, each pixel unit displays one pixel point, which causes deformation of a curved surface portion of an image to be displayed on a display screen. The embodiment of the application displays the same pixel point by controlling the plurality of pixel units of the curved surface part, so that the pixel point of the image to be displayed on the curved surface part is stretched, and thus, when the display screen is checked, the deformation of the curved surface part can be reduced.
The image display method provided by the embodiment of the application comprises the steps of firstly obtaining an image to be displayed; then, displaying the image to be displayed through a display screen; wherein, the displaying the image to be displayed through the display screen comprises: controlling at least two pixel units arranged according to a first dimension on the display screen to display the same image pixel value, wherein the same image pixel value belongs to the image to be displayed; the first dimensionality is the dimensionality corresponding to the bending of the curved surface portion of the display screen, and the same pixel point is displayed by controlling the plurality of pixel units of the curved surface portion, so that the pixel point of the image to be displayed on the curved surface portion is stretched, and the deformation of the curved surface portion can be reduced when the display screen is checked.
In some embodiments, the step S102 "displaying the image to be displayed through the display screen" may be implemented by:
step S1021, determining that the image to be displayed belongs to a first image in the first display area and a second image in the second display area.
Wherein the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a curved portion of the display screen.
Because the image to be displayed on the display screen has no deformation in the plane part and only has deformation in the curved surface part, the display screen is divided into the curved surface part and the plane part on the basis of the deformation. And taking the part of the image to be displayed, which is displayed on the curved surface part, as a second image, and taking the part of the image to be displayed, which is displayed on the plane part, as a first image. The first image is directly displayed on the display screen, and only the second image needs to be adjusted, so that the same image pixel value of the second image is displayed by at least two pixel units which are arranged according to the first dimension on the display screen.
In step S1022, the pixel unit corresponding to the planar portion is controlled to display based on each image pixel value of the first image.
When the first display area displays the first image, each pixel unit on the display screen corresponds to one pixel point of the first image, namely, one pixel unit displays the image pixel value of one pixel point of the first image.
In step S1023, the second image is processed.
Because the second image is deformed in the direction in which the curved surface portion is bent, the second image needs to be processed, and when the step S1023 is implemented, the display parameter information of the display screen may be first acquired, and then the second image is stretched and pixel point deletion processing is performed based on the display parameter information, so that the processed second image is obtained.
And step S1024, controlling the pixel unit corresponding to the curved surface part to display based on each image pixel value of the processed second image.
And after the processed second image is obtained, displaying the processed second image in a second display area so that the pixel values of the images displayed by at least two pixel units arranged side by side on the curved surface part are the same.
The embodiment of the application divides the image to be displayed into the first image displayed on the plane part and the second image displayed on the curved surface part, the first image is directly displayed on the plane part of the display screen, and the second image is processed and then displayed on the curved surface part of the display screen, so that the pixel values of the images displayed by at least two pixel units arranged side by side on the curved surface part are the same, the image to be displayed is stretched on the pixel points of the curved surface part, and therefore, when the display screen is viewed, the deformation of the curved surface part can be reduced.
In some embodiments, the step S1023 of processing the second image can be implemented by:
in step S10231, display parameter information is obtained.
The display parameter information is used for representing the curvature of each pixel unit included in the curved surface part of the display screen. Here, the curvature of the pixel unit is a rotation rate of an arc length curved along the curved portion by a tangential direction angle of a central point on the pixel unit. Defined by differentiation, the curvature of a point on a curve, indicating the extent to which the curve deviates from a straight line (tangent to the point) at that point, the greater the deviation from a straight line, i.e., the greater the degree of curvature, the greater the curvature of the pixel cell; the smaller the degree of curvature, the smaller the curvature of the pixel cell.
After the display parameter information of the curved surface part of the display screen is obtained, the second image can be processed based on the curvature of each pixel unit.
Step S10232, the second image is processed based on the display parameter information.
When a second image is processed, firstly, based on the curvature of each pixel unit, stretching each image pixel point of the second image along the direction far away from the first image in a first dimension, wherein the number of the stretched image pixel points is in direct proportion to the curvature of the corresponding pixel unit, so that at least two pixel units arranged side by side on the display screen display the same image pixel value; and then deleting image pixel points of the second image along the direction close to the first image in the first dimension, wherein the number of the deleted image pixel points is equal to that of the image pixel points increased by stretching.
Here, the direction away from the first image, that is, the two directions of the forward direction and the reverse direction along the first dimension, for example, taking a vertical-screen mobile phone as an example, the forward direction of the first dimension is a direction in which the first dimension value increases, and the reverse direction of the first dimension is a direction in which the first dimension value decreases, and each image pixel point displayed on the curved surface portion on the left side of the mobile phone is stretched to the left, and each image pixel point displayed on the curved surface portion on the right side of the mobile phone is stretched to the right. The number of the image pixel points which are stretched and increased is in direct proportion to the curvature of the pixel units, and the larger the curvature is, the longer the stretching length of one image point of the second image is, so that more pixel units display the same image pixel value.
Due to stretching, pixel units needed by the second image after display processing are increased, but because the pixel units included by the display screen are fixed, pixel points which are too many due to stretching on two sides of the image to be displayed need to be deleted. And deleting a pixel point at the outer side of the image to be displayed when the pixel point is increased by stretching, wherein the number of the deleted image pixel points is equal to that of the image pixel points increased by stretching.
The processed second image is obtained by stretching and deleting the second image, the curved surface part is controlled to display the processed second image, and the image to be displayed is stretched at the pixel point of the curved surface part, so that the deformation of the curved surface part can be reduced when the display screen is checked.
Based on the image display method provided in the embodiment shown in fig. 1, an image display method is further provided in the embodiment of the present application, and fig. 2 is a schematic view of another implementation flow of the image display method provided in the embodiment of the present application, as shown in fig. 2, the method includes:
step S201, an image to be displayed is obtained.
In one implementation, an image display device first obtains a source image.
When the image resolution of the source image is equal to the display resolution of the display screen, if the source image is a picture, determining that the source image is an image to be displayed, and if the source image is a video, determining that one frame of image of the source image is the image to be displayed. And when the image resolution of the source image is greater than the display resolution of the display screen, the display screen cannot display all image pixel points of the source image, at the moment, the source image is compressed to obtain an image to be displayed, and the image resolution of the image to be displayed is equal to the display resolution of the display screen. When the image resolution of the source image is smaller than the display resolution of the display screen, the display screen can display all image pixel points of the source image, and residual pixel units without the display image pixel points exist.
Step S202, determining a first image of the image to be displayed belonging to a first display area and a second image belonging to a second display area.
Here, the first display region corresponds to a planar portion of the display screen; the second display area corresponds to a curved portion of the display screen.
Step S203, controlling a pixel unit corresponding to the planar portion to display based on each image pixel value of the first image.
And step S204, obtaining display parameter information.
Here, the display parameter information is used to characterize the curvature of each pixel unit included in the curved surface portion of the display screen.
Step S205, based on the curvature of each pixel unit, stretching each image pixel point of the second image along a direction away from the first image in the first dimension.
The number of the image pixel points increased by stretching is in direct proportion to the curvature of the corresponding pixel units, so that at least two pixel units arranged side by side on the display screen display the same image pixel value.
And step S206, deleting the image pixel points of the second image along the direction close to the first image in the first dimension.
And the number of the deleted image pixel points is equal to the number of the image pixel points increased by stretching.
And step S207, controlling the pixel unit corresponding to the curved surface part to display based on each image pixel value of the processed second image.
The image display method includes the steps that firstly, an image to be displayed is obtained, and a first image of the image to be displayed, which belongs to a first display area, and a second image of the image to be displayed, which belongs to a second display area, are determined; and then obtaining display parameter information, based on the curvature of each pixel unit, stretching each image pixel point of the second image along the direction far away from the first image in the first dimension, deleting the image pixel points of the second image along the direction close to the first image in the first dimension, and finally controlling the pixel units corresponding to the curved surface part to display based on each image pixel value of the processed second image, so that the image pixel values displayed by at least two pixel units arranged side by side on the curved surface part are the same. Thus, when the display screen is viewed, the deformation of the curved surface part can be reduced.
Based on the image display method provided in the embodiment shown in fig. 1, an image display method is further provided in the embodiment of the present application, and fig. 3 is a schematic diagram of another implementation flow of the image display method provided in the embodiment of the present application, as shown in fig. 3, the method includes:
step S301, an image to be displayed is obtained.
And step S302, displaying the image to be displayed through a display screen.
Wherein, the displaying the image to be displayed through the display screen comprises:
controlling at least two pixel units arranged according to a first dimension on the display screen to display the same image pixel value, wherein the same image pixel value belongs to the image to be displayed; the first dimension is a dimension corresponding to a curvature of a curved portion of the display screen.
In the embodiment of the present application, the implementation manner and the implementation process of the above step S301 and step S302 can refer to the description of step S101 and step S102 in the embodiment shown in fig. 1.
Step S303, obtaining first position information of the human eye with respect to the planar portion of the display screen.
Here, the first position information includes at least angle information.
In the embodiment of the application, the angle of the human eye relative to the plane part of the display screen can be obtained by using a built-in camera of the image display device, and the built-in camera can be a panoramic camera or a camera capable of rotating relative to the display screen. In other embodiments, the image display device may also obtain the angle of the human eye relative to the plane portion of the display screen in combination with an external device, such as an external camera or an angle sensor. It should be noted that, in the embodiment of the present application, the angle information refers to an included angle between a human eye and a plane portion of the display screen, and is not an included angle between a line of sight and the plane portion of the display screen.
Step S304, when the angle information is determined to be smaller than a preset angle threshold, obtaining second position information of the human eyes relative to the display screen after the change.
Because the curved surface part is not deformed due to perspective when being looked forward. When the angle of the human eyes relative to the plane part of the display screen is smaller than the preset angle threshold value, the human eyes can be considered to look at the curved surface part of the display screen approximately, namely the curved surface part faces the user, and the deformation generated by the curved surface part can be ignored at the moment. Based on the above, when it is determined that the angle of the human eye relative to the plane portion of the display screen is smaller than the preset angle threshold, the second position information of the human eye relative to the display screen after the change is obtained, so that the image displayed on the display screen is further adjusted according to the second position information, and only one pixel unit of the curved surface portion close to one side of the human eye displays one image pixel value, and the image does not need to be stretched again, so that the image seen by the human eye is ensured to be less in deformation.
In the embodiment of the present application, the preset angle threshold may be set to 15 ° (degrees).
Step S305, controlling the display screen to update and display the image to be displayed according to the second position information.
In the embodiment of the present application, updating and displaying the image to be displayed may be implemented as the following steps:
step S3051, determining, according to the second position information, a first image of the image to be displayed, which belongs to the first display area, a second image of the image to be displayed, which belongs to the second display area, and a third image of the image to be displayed, which belongs to the third display area.
Wherein the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a first curved surface portion of the display screen, and the third display area corresponds to a second curved surface portion of the display screen; the second display area faces the human eyes, and the third display area faces away from the human eyes. Here, the second image and the third image are images corresponding to left and right curved surface portions, respectively. The second image is a curved part close to one side of human eyes, and the third image is a curved part far away from one side of human eyes.
And S3052, controlling the pixel unit corresponding to the plane part to display based on each pixel value of the first image.
When the first display area displays the first image, each pixel unit on the display screen corresponds to one pixel point of the first image, namely, one pixel unit displays the image pixel value of one pixel point of the first image.
Step S3053, controlling a pixel unit corresponding to the first curved surface portion to display based on each pixel value of the second image.
When the second image is displayed in the second display area, each pixel unit on the display screen corresponds to one pixel point of the second image, namely, one pixel unit included in the first curved surface part displays the image pixel value of one pixel point of the second image.
And step S3054, processing the third image.
And step S3055, controlling the pixel unit corresponding to the second curved surface part to display based on each image pixel value of the processed third image.
And processing the third image, namely stretching and deleting pixel points to obtain a processed third image, and then displaying the processed third image in a third display area so as to enable the pixel values of the images displayed by at least two pixel units arranged side by side on the second curved surface part to be the same.
According to the embodiment of the application, different perspective conditions of the curved surface part are considered when the curved surface part is observed from different angles, and different display is carried out on pixel points of an image to be displayed on the display screen by introducing first position information of human eyes relative to the plane part of the display screen and combining with real-time positions of the human eyes. When the human eyes normally look at the plane part of the display screen, the curved surface part has larger perspective deformation, and the deformation of the curved surface part can be reduced by stretching the pixel points displayed by the curved surface part; when human eyes normally look at the curved surface part of the display screen, the perspective deformation of the curved surface part is small, and the stretched pixel points are restored, so that the pixel points of the curved surface part are directly displayed, and real-time dynamic display of the image is realized while the display deformation is small.
In the image display method provided by each of the foregoing embodiments, the sizes of the pixel units included in the display screen are the same, and the pixel units located in the curved surface portion are controlled to display the same image pixel value of the image to be displayed, so that the pixel points of the image to be displayed in the curved surface portion are stretched, and thus, when the display screen is viewed, the deformation of the curved surface portion can be reduced.
The following provides an electronic device that realizes reduction of deformation of a curved surface portion of a display screen from a hardware aspect. Fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application, and as shown in fig. 4, the electronic device 40 includes a device body 41 and a display 42.
The display screen 42 is a flexible display screen for displaying an image to be displayed, and is arranged on the device body 41 to form a plane part 421 and a curved part 422 of the display screen; the planar portion 421 is constituted by a first pixel cell array, and the curved portion 422 is constituted by a second pixel cell array.
Wherein the sizes of the first pixel units 4211 included in the first pixel unit array are the same; each second pixel unit 4221 included in the second pixel unit array has a different size according to the first dimension, and each second pixel unit 4221 arranged according to the second dimension has the same size, and the first dimension is a dimension corresponding to the curvature of the curved surface portion 422.
In some embodiments, the curvatures of the respective second pixel cells 4221 in the first dimension are different; the first dimension value of each second pixel unit 4221 is proportional to the curvature of each second pixel unit 4221 in the first dimension, and the first dimension value of the second pixel unit 4221 is the length of the second pixel unit 4221 in the first dimension.
The length value of each second pixel unit 4221 is calculated according to the curvature of each second pixel unit 4221, the deformation of the second pixel unit 4221 with large curvature due to the perspective effect is more obvious in front view, and on the basis of the deformation, the longer the length value of the second pixel unit 4221 with large curvature is set, the longer the pixel point with large deformation is stretched, and therefore the deformation of the curved surface part is reduced.
In some embodiments, the projection length of the first dimension value of each second pixel unit 4221 on the target plane is equal and equal to the third dimension value of each first pixel unit 4211; wherein the target plane is a plane parallel to the plane portion 421, and the third dimension value of the first pixel unit is a length of the first pixel unit 4211 in a third dimension, and the third dimension is perpendicular to the second dimension.
In order to further reduce the deformation of the curved surface part, the length of the pixel unit of the curved surface part is quantitatively calculated by combining the length of the pixel unit of the plane part, and when the widths of all pixel points are equal, the deformation of the image in the front view can be completely offset. Based on the method, the length value of the projection of each second pixel unit on the plane parallel to the plane part is set to be equal to the width of each first pixel unit which is not deformed, and the length of each second pixel unit can be determined according to the cosine theorem by combining the curvature of the display screen at each position.
In some embodiments, the curvatures of the respective second pixel cells 4221 in the second dimension are the same; the second dimension value of each first pixel unit 4211 is equal to the second dimension value of each second pixel unit 4221, the second dimension value of the first pixel unit 4211 is the length of the first pixel unit 4211 in the second dimension, and the second dimension value of the second pixel unit 4221 is the length of the second pixel unit 4221 in the second dimension.
In the bending direction (i.e., the first dimension) of the curved surface portion, because the image to be displayed is not in the same plane, the deformation is large, and in the non-bending direction (i.e., the second dimension) of the curved surface portion, the curvature is 0, and the deformation cannot occur, so that the height of each second pixel unit cannot be deformed in the curved surface portion, and the height of each first pixel unit is equal to the height of each second pixel unit.
The embodiment of the application makes the length of each image pixel point display of the curved surface part different by adjusting the width of each pixel unit of the curved surface part of the display screen, and makes the pixel point of the image to be displayed on the curved surface part stretched, so that the deformation of the curved surface part can be reduced when the display screen is checked.
Next, an exemplary application of the embodiment of the present application in a practical application scenario will be described.
For a mobile phone with a fully curved screen, the screen is a slightly curved surface rather than a plane, and pixels in the display screen are distributed in a curve. In the related art, the display mode of a full-curved screen is the same as that of a flat screen, one pixel unit of a display screen displays one pixel point of an image to be displayed, and the image imaged to human eyes can have a convex lens effect, so that the image is slightly deformed, and is particularly more obvious in an edge area.
In view of the above problems, the embodiments of the present application propose the following two solutions:
the first scheme is as follows: the screen pixel design is modified, the screen pixels are no longer of equal size, as shown in fig. 5, the pixel size at position 501 is unchanged, and the pixel size at edge position 502 is enlarged, so as to counteract the deformation of the image in the normal view.
Referring to fig. 6, the stretching of the edge position pixel size is designed to be: the pixel size of the screen middle area 601 is a, the pixel sizes of the arc area 602 are a1, a2 and …, respectively, and to ensure that the pixels at the respective positions are consistent when viewed in a normal view, that is, a is 1 is a2, so that the pixel length at the corresponding position needs to be adjusted, for example, b1 is a1/cos θ 1, b2 is a2/cos θ 2, and so on, and all the pixel lengths of the curved surface part are obtained.
Scheme II: the design of pixels such as a screen and the like captures the positions (positive visual angle and side visual angle) of human eyes through the forward shooting of a mobile phone, and the stretching and compression ratio of the pixels at each position are adjusted in a GPU (graphics processing unit) so that the images are not deformed after reaching the human eyes.
By adopting the two schemes, the image display deformation is small after the image is transmitted to human eyes.
Based on the foregoing embodiments, the present application provides an image display apparatus, where the apparatus includes modules and units included in the modules, and the modules and the units may be implemented by a processor in a computer device; of course, the implementation can also be realized through a specific logic circuit; in the implementation process, the processor may be a Central Processing Unit (CPU), a Microprocessor Unit (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.
Fig. 7 is a schematic view of a composition structure of the image display device according to an embodiment of the present application, and as shown in fig. 7, the image display device 700 includes:
a first obtaining module 701, configured to obtain an image to be displayed;
a display module 702, configured to display the image to be displayed through a display screen;
wherein the display module 702 includes:
a first display unit 7021, configured to control at least two pixel units arranged according to a first dimension on the display screen to display a same image pixel value, where the same image pixel value belongs to the image to be displayed; the first dimension is a dimension corresponding to a curvature of a curved portion of the display screen.
In some embodiments, the display module 702 further includes:
the first determining unit is used for determining a first image of the image to be displayed, which belongs to the first display area, and a second image of the image to be displayed, which belongs to the second display area; the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a curved surface part of the display screen;
a second display unit, configured to control a pixel unit corresponding to the planar portion to display based on each image pixel value of the first image;
a first processing unit for processing the second image;
the third display unit is used for controlling the pixel unit corresponding to the curved surface part to display based on each image pixel value of the processed second image; so that the pixel values of the image displayed by at least two pixel units of the curved surface part are the same.
In some embodiments, the first processing unit is further configured to:
obtaining display parameter information, wherein the display parameter information is used for representing the curvature of each pixel unit included in the curved surface part of the display screen;
processing the second image based on the display parameter information.
In some embodiments, the first processing unit is further configured to:
based on the curvature of each pixel unit, stretching each image pixel point of the second image along the direction far away from the first image in the first dimension, wherein the number of the image pixel points increased by stretching is in direct proportion to the curvature of the corresponding pixel unit, so that at least two pixel units arranged side by side on the display screen display the same image pixel value;
and deleting image pixel points of the second image along the direction close to the first image in the first dimension, wherein the number of the deleted image pixel points is equal to that of the image pixel points increased by stretching.
In some embodiments, the image display device 700 further comprises:
a second obtaining module, configured to obtain first position information of a human eye relative to a planar portion of the display screen, where the first position information at least includes angle information;
the third obtaining module is used for obtaining second position information of the human eyes relative to the display screen after the change when the angle information is determined to be smaller than a preset angle threshold value;
and the updating module is used for controlling the display screen to update and display the image to be displayed according to the second position information.
In some embodiments, the update module comprises:
the second determining unit is used for determining a first image of the image to be displayed, a second image of the image to be displayed and a third image of the image to be displayed, wherein the first image belongs to the first display area, the second image belongs to the second display area and the third image belongs to the third display area according to the second position information;
wherein the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a first curved surface portion of the display screen, and the third display area corresponds to a second curved surface portion of the display screen; the second display area faces the human eyes, and the third display area faces away from the human eyes;
a fourth display unit, configured to control a pixel unit corresponding to the planar portion to display based on each pixel value of the first image;
a fifth display unit, configured to control, based on each pixel value of the second image, a pixel unit corresponding to the first curved surface portion to display; so that one pixel unit of the first curved surface part displays one image pixel value;
a second processing unit for processing the third image;
a sixth display unit, configured to control, based on each image pixel value of the processed third image, a pixel unit corresponding to the second curved surface portion to display; so that the pixel values of the image displayed by at least two pixel units of the second curved surface part are the same.
It should be noted that, in the embodiment of the present application, if the image display method is implemented in the form of a software functional module and sold or used as a standalone product, the image display method may also be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or portions thereof contributing to the prior art may be embodied in the form of a software product stored in a storage medium, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.
Accordingly, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps in the image display method provided in the above embodiment.
An embodiment of the present application provides an image display apparatus, fig. 8 is a schematic diagram of a composition structure of the image display apparatus provided in the embodiment of the present application, and as shown in fig. 8, the image display apparatus 800 includes: a processor 801, at least one communication bus 802, a user interface 803, at least one external communication interface 804 and memory 805. Wherein the communication bus 802 is configured to enable connective communication between these components. The user interface 803 may include a display screen, and the external communication interface 804 may include a standard wired interface and a wireless interface, among others. Wherein the processor 801 is configured to execute the program of the image display method stored in the memory to realize the steps in the image display method provided in the above-described embodiment.
The above description of the image display apparatus and storage medium embodiments is similar to the description of the above method embodiments, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the image display apparatus and storage medium of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
Here, it should be noted that: the above description of the storage medium and device embodiments is similar to the description of the method embodiments above, with similar advantageous effects as the method embodiments. For technical details not disclosed in the embodiments of the storage medium and apparatus of the present application, reference is made to the description of the embodiments of the method of the present application for understanding.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read Only Memory (ROM), a magnetic disk, or an optical disk.
Alternatively, the integrated units described above in the present application may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present application may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing an AC to perform all or part of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.
The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method of displaying an image, the method comprising:
obtaining an image to be displayed;
displaying the image to be displayed through a display screen;
wherein, the displaying the image to be displayed through the display screen comprises:
controlling at least two pixel units arranged according to a first dimension on the display screen to display the same image pixel value, wherein the same image pixel value belongs to the image to be displayed; the first dimension is a dimension corresponding to a curvature of a curved portion of the display screen.
2. The method of claim 1, the displaying the image to be displayed through a display screen, comprising:
determining a first image of the image to be displayed, which belongs to a first display area, and a second image of the image to be displayed, which belongs to a second display area; the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a curved surface part of the display screen;
controlling the pixel unit corresponding to the plane part to display based on each image pixel value of the first image;
processing the second image;
controlling a pixel unit corresponding to the curved surface part to display based on each image pixel value of the processed second image; so that the pixel values of the image displayed by at least two pixel units of the curved surface part are the same.
3. The method of claim 2, the processing the second image, comprising:
obtaining display parameter information, wherein the display parameter information is used for representing the curvature of each pixel unit included in the curved surface part of the display screen; processing the second image based on the display parameter information.
4. The method of claim 3, the processing the second image based on the display parameter information, comprising:
based on the curvature of each pixel unit, stretching each image pixel point of the second image along the direction far away from the first image in the first dimension, wherein the number of the image pixel points increased by stretching is in direct proportion to the curvature of the corresponding pixel unit, so that at least two pixel units arranged side by side on the display screen display the same image pixel value;
and deleting image pixel points of the second image along the direction close to the first image in the first dimension, wherein the number of the deleted image pixel points is equal to that of the image pixel points increased by stretching.
5. The method of claim 1, further comprising:
obtaining first position information of a human eye relative to a planar portion of the display screen, the first position information including at least angle information;
when the angle information is determined to be smaller than a preset angle threshold value, second position information of the human eyes relative to the display screen after the change is obtained;
and controlling the display screen to update and display the image to be displayed according to the second position information.
6. The method according to claim 5, wherein the controlling the display screen to update and display the image to be displayed according to the second position information comprises:
determining a first image of the image to be displayed, a second image of the image to be displayed and a third image of the image to be displayed, wherein the first image belongs to a first display area, the second image belongs to a second display area and the third image belongs to a third display area;
wherein the first display area corresponds to a planar portion of the display screen; the second display area corresponds to a first curved surface portion of the display screen, and the third display area corresponds to a second curved surface portion of the display screen; the second display area faces the human eyes, and the third display area faces away from the human eyes;
controlling the pixel unit corresponding to the plane part to display based on each pixel value of the first image;
controlling the pixel unit corresponding to the first curved surface part to display based on each pixel value of the second image; so that one pixel unit of the first curved surface part displays one image pixel value;
processing the third image;
controlling a pixel unit corresponding to the second curved surface part to display based on each image pixel value of the processed third image; so that the pixel values of the image displayed by at least two pixel units of the second curved surface part are the same.
7. An electronic device, the electronic device comprising:
an apparatus body;
the flexible display screen is used for displaying an image to be displayed and is arranged on the equipment body to form a plane part and a curved surface part of the display screen; the planar portion is composed of a first pixel unit array, and the curved portion is composed of a second pixel unit array;
wherein the sizes of the first pixel units included in the first pixel unit array are the same; the second pixel units included in the second pixel unit array are different in size of each second pixel unit arranged according to the first dimension and the same in size of each second pixel unit arranged according to the second dimension, and the first dimension is a dimension corresponding to the curvature of the curved surface portion.
8. The electronic device of claim 7, the curvatures of the respective second pixel cells in a first dimension being different;
the first dimension value of each second pixel unit is in direct proportion to the curvature of each second pixel unit in the first dimension, and the first dimension value of each second pixel unit is the length of each second pixel unit in the first dimension.
9. The electronic device of claim 8, wherein the projection length of the first dimension value of each second pixel unit on the target plane is equal to the third dimension value of each first pixel unit; wherein the target plane is a plane parallel to the planar portion, and the third dimension value of the first pixel unit is a length of the first pixel unit in a third dimension perpendicular to the second dimension.
10. The electronic device of claim 7, the curvatures of the respective second pixel cells in the second dimension are the same; the second dimension value of each first pixel unit is equal to the second dimension value of each second pixel unit, the second dimension value of the first pixel unit is the length of the first pixel unit in the second dimension, and the second dimension value of the second pixel unit is the length of the second pixel unit in the second dimension.
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