CN108492773B - Image display method, special-shaped display equipment and device with storage function - Google Patents
Image display method, special-shaped display equipment and device with storage function Download PDFInfo
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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Abstract
The application discloses an image display method, special-shaped display equipment and a device with a storage function, wherein the method comprises the following steps: judging whether the sub-pixels controlled by the input image signals are positioned at the edge of the special-shaped display screen or not; if the judgment result is yes, processing the image signal to reduce the gray-scale value of the sub-pixel; and outputting the processed image signal to display the processed image. By means of the mode, the color edge can be eliminated, and the display effect is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to an image display method, a special-shaped display device, and an apparatus having a storage function.
Background
In the mobile phone and flat panel Display technologies, an OLED (Organic Light Emitting Display) panel is a mainstream product of a Display panel due to its advantages of autonomous Light emission, high color gamut, low power consumption, wide viewing angle, and the like. At present, in order to achieve a better display effect and meet requirements of different applications, a comprehensive screen and a flexible screen are produced at the same time, the screen becomes a hot spot screen of display equipment such as a mobile phone and a flat panel, and the flexible screen can be made into different shapes (special shapes) according to requirements.
Unlike the conventional red, green and blue (Real RGB) Pixel arrangement of an LCD (Liquid Crystal Display) screen, due to the limitation of OLED screen manufacturing process, in order to ensure high resolution, generally, three kinds of RGB Sub-pixels are arranged by using SPR (Sub Pixel Rendering) technology, and each main Pixel is composed of two Sub-pixels and is periodically arranged in the order of "red + green" or "green + blue" or "blue + red". Because human eyes are not sensitive to blue, the sub-pixels at the edges can only form the sub-pixels with the other two adjacent sub-pixels, and the edges of the special-shaped display screen often form the single sub-pixels and do not have the sub-pixels with the other two adjacent colors, the special-shaped display screen is easy to form the color edges.
Content of application
The technical problem mainly solved by the application is to provide an image display method, a special-shaped display device and a device with a storage function, and the problem that a color edge is easily formed on an existing special-shaped display screen can be solved.
In order to solve the technical problem, the application adopts a technical scheme that: provided is an image display method including: judging whether the sub-pixels controlled by the input image signals are positioned at the edge of the special-shaped display screen or not; if the judgment result is yes, processing the image signal to reduce the gray-scale value of the sub-pixel; and outputting the processed image signal to display the processed image.
In order to solve the above technical problem, another technical solution adopted by the present application is: there is provided a contoured display device comprising: a processor for executing instructions to implement the image display method as described above.
In order to solve the above technical problem, the present application adopts another technical solution: there is provided an apparatus having a storage function, in which a program is stored, the program being executed to implement the image display method as described above.
The beneficial effect of this application is: different from the prior art, in some embodiments of the present application, whether a sub-pixel controlled by an input image signal is located at an edge of a special-shaped display screen is determined, and if the determination result is yes, the image signal is processed to reduce a gray level value of the sub-pixel, and finally, the processed image signal is output to display the processed image. Through the mode, the gray-scale value of the sub-pixel at the edge of the special-shaped display screen is reduced, the difference value of the gray-scale value of the sub-pixel with other adjacent colors is reduced, namely the adjacent sub-pixel is borrowed, and a complete RGB pixel is formed, so that the color edge can be effectively reduced, and the display effect is improved.
Drawings
FIG. 1 is a schematic flow chart diagram illustrating a first embodiment of an image display method according to the present application;
fig. 2 is a schematic flowchart of step S104 in fig. 1 when S1041 is specifically included;
FIG. 3 is a schematic diagram of a shaped display screen using a masonry pixel arrangement;
FIG. 4 is a schematic flow chart diagram illustrating a second embodiment of an image displaying method according to the present application;
FIG. 5 is a schematic flow chart diagram illustrating a third embodiment of an image display method according to the present application;
FIG. 6 is a schematic flow chart diagram illustrating a fourth embodiment of an image display method according to the present application;
FIG. 7 is a schematic diagram of an 1/4 arc cutting edge when the edge of the special-shaped display screen is arc-shaped;
FIG. 8 is a schematic structural diagram of an embodiment of an anomalous display device of the present application;
FIG. 9 is a schematic structural diagram of an embodiment of the apparatus with storage function according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, the first embodiment of the image display method of the present application includes:
s102: judging whether the sub-pixels controlled by the input image signals are positioned at the edge of the special-shaped display screen or not;
wherein the input image signal is gray-scale value data for controlling the emission of the sub-pixels. The irregular display screen refers to a display screen with a shape of a non-traditional square, such as a circular, triangular or irregular shape.
Specifically, in an application example, after receiving an input image signal, the special-shaped display screen determines whether a sub-pixel controlled by the input image signal is located at an edge of the special-shaped display screen, and then obtains position information of the sub-pixel controlled by the input image signal, and then compares the position information with preset position information, and if the position information is matched with the preset position information, it may be determined that the sub-pixel controlled by the input image signal is located at the edge of the special-shaped display screen. The position information of the sub-pixel may be a position coordinate (e.g., row and column information), or may be distance information between the sub-pixel and a predetermined sub-pixel (e.g., a first row and a first column of sub-pixels), and the predetermined position information may be set according to specific factors such as a size and a shape of the special-shaped display screen, which is not specifically limited herein.
For example, the position information of the sub-pixel controlled by the input image signal may be a distance between the sub-pixel and a center sub-pixel of the irregular display screen, the preset position information may be a preset distance range, and if the distance between the sub-pixel and the center sub-pixel of the irregular display screen is within the preset distance range, it may be determined that the sub-pixel is located at the edge of the irregular display screen. The preset distance range may be a distance between an edge sub-pixel and a center sub-pixel of a row/column where the sub-pixel is located.
Of course, in other application examples, the position coordinates of all edge subpixels may be recorded in advance, and then it may be determined whether the position coordinates of the subpixels controlled by the input image signal are within the position coordinates of the edge subpixels recorded in advance, so as to determine whether the subpixels controlled by the input image signal are located at the edge of the special-shaped display screen.
S104: if the judgment result is yes, processing the image signal to reduce the gray-scale value of the sub-pixel;
specifically, when it is determined that the sub-pixel controlled by the input image signal is located at the edge of the irregular-shaped display screen, the image signal may be processed to reduce the gray scale value of the sub-pixel. The specific image signal processing method may be to directly reduce the gray-scale value of the sub-pixel by a preset value or by a preset ratio, or may be to perform more complex processing on the image signal, for example, filtering and smoothing processing are performed by using a filter, which may be determined according to actual requirements, and is not limited herein. The gray scale value of the sub-pixel represented by the processed image signal may be 0.5-0.7 of the gray scale value before processing. Of course, the amount of reduction of the gray level of the sub-pixel can also be determined according to the actual display requirement.
Alternatively, as shown in fig. 2, step S104 includes:
s1041: and filtering the image signal by using a low-pass filter to filter high-frequency components in the image signal, so that the gray-scale value of the sub-pixel is reduced.
Where the low pass filter is an order-N low pass filter, where N is an odd number greater than 2, typically 3, taking into account the influence of neighboring sub-pixels. The type of the low-pass filter can be selected according to actual requirements, and the cut-off frequency of different types of filters is different, for example, the cut-off frequency of a gaussian low-pass filter can be 80 Hz.
Generally, when the display gray scale value of a sub-pixel is relatively large, the image signal for controlling the sub-pixel has more high frequency components, and therefore, when the gray scale value of the controlled sub-pixel needs to be reduced, the image signal for controlling the sub-pixel can be passed through a low pass filter, and the high order components with the frequency greater than the cut-off frequency of the low pass filter are filtered out, so that the image signal can be smoothed, and the gray scale value of the sub-pixel is reduced.
Of course, in other embodiments, the gray scale value represented by the image signal may be directly reduced without using a filter, for example, directly reduced to half of the original gray scale value.
S106: and outputting the processed image signal to display the processed image.
Specifically, in the above application example, after the image signal is processed, the gray scale value indicated by the image signal is reduced, and then after the processed image signal is output, when the sub-pixel controlled by the processed image signal emits light, the luminance of the sub-pixel is reduced, and the luminance difference from the sub-pixel of the adjacent other color is small, in this case, the sub-pixel of the adjacent other color can be used for displaying, so that the case where one or two color sub-pixels are used alone at the edge is not easy to occur, and the color edge of the displayed processed image can be eliminated, and the display effect is remarkably improved.
For example, the edge of the irregular display panel shown in fig. 3 adopts a masonry pixel arrangement, and as shown in fig. 3, one column of sub-pixels is arranged with red (R) and blue (B) sub-pixels at intervals, and all the sub-pixels in an adjacent column are arranged with green (G) sub-pixels, and the two columns are arranged with intervals, the edge is mainly the red and blue sub-pixels, and lacks the green sub-pixels, so that a purple edge is easily formed. When the method of the embodiment is adopted to reduce the gray-scale values of the red and blue sub-pixels at the edge, the gray-scale value of the adjacent green sub-pixel is obviously greater than that of the red and blue sub-pixels, and at this time, the adjacent green sub-pixel is used for displaying, so that the edge can form a complete pixel with three colors of red, blue and green, thereby eliminating the color edge and improving the display effect.
In other embodiments, in consideration of the time consumption of signal processing, in order to avoid display delay, the image signal that does not need to be signal processed and the processed image signal may be stored first and then output together for display.
As shown in fig. 4, the second embodiment of the image display method of the present application is based on the first embodiment of the image display method of the present application, and step S106 is further defined, and the specific implementation of other steps may refer to the method provided in the first embodiment of the image display method of the present application, and will not be repeated here. In this embodiment, step S106 specifically includes:
s1061: storing the processed image signal;
s1062: the stored unprocessed image signal and the processed image signal are simultaneously output to display the processed image.
The unprocessed image signal refers to the image signal of the controlled sub-pixel which is not located at the edge of the special-shaped display screen.
Specifically, as shown in fig. 4, after step S104, the method further includes:
s105: if the judgment result is negative, the image signal is stored, and the step of judging whether the sub-pixel controlled by the input image signal is positioned at the edge of the special-shaped display screen is continuously executed.
In an application example, when a frame of image needs to be displayed, the position of a sub-pixel controlled by an input image signal may be detected first, and if the sub-pixel is located at the edge of the irregular display screen, the image signal needs to be processed, and after the gray-scale value of the sub-pixel is reduced, the processed image signal is stored, for example, in a register. If the sub-pixel is not located at the edge of the irregular display screen, the unprocessed image signal can be directly saved, for example, also saved in a register. After the detection of all the positions of the sub-pixels is completed, the stored unprocessed image signal and the processed image signal are output at the same time, and the processed image can be displayed. At this time, since the image signals are output simultaneously, a long display delay time is not generated, and the display effect is not affected. The processed image signal and the unprocessed image signal may be stored in the same memory, or may be stored in different memories, which is not limited herein.
In other embodiments, when determining whether the sub-pixel controlled by the input image signal is located at the edge of the irregular-shaped display screen, the determination may be performed according to whether the position coordinate of the sub-pixel exists in a pre-stored edge pixel table.
Specifically, as shown in fig. 5, the third embodiment of the image display method of the present application is based on the first embodiment of the image display method of the present application, and the step S102 specifically includes:
s1021: acquiring a first position coordinate of a sub-pixel controlled by an input image signal;
the first position coordinate of the sub-pixel may be represented by a row and a column where the sub-pixel is located, for example, when the sub-pixel is located in a first row and a fourth column, the first position coordinate of the sub-pixel may be represented as (1, 4). Alternatively, the first position coordinate of the sub-pixel may also be obtained by using a sub-pixel (e.g., a center sub-pixel of a center position) at a certain preset position of the display screen as a coordinate origin, where one coordinate unit is a sub-pixel, and for example, when the center sub-pixel is located in an eighth row and an eighth column, and a certain sub-pixel is located in a first row and a fifth column, the first position coordinate of the sub-pixel may be represented as (-3, 7).
The display panel acquires the input image signal, which is generally received in the order of pixel arrangement, so that the input image signal can be counted by a counter, and thus the first position coordinates of the sub-pixels controlled by the input image signal can be acquired according to the counted value.
S1023: looking up the first position coordinate in an edge pixel table;
the edge pixel table is a table formed by the position coordinates of all the sub-pixels which are pre-stored and positioned at the edge of the special-shaped display screen.
Alternatively, when the position coordinates of the sub-pixels are located at the origin of coordinates of the center sub-pixel of the irregular-shaped display screen and one sub-pixel is located in each row or each column, as shown in fig. 5, before step S1023, the method includes:
s1022: and recording the position coordinates of all the sub-pixels positioned at the edge of the special-shaped display screen to form the edge pixel table.
Specifically, the central sub-pixel of the special-shaped display screen is used as the origin of coordinates, the position coordinates of all sub-pixels at the edge of the special-shaped display screen can be recorded in advance, then an edge pixel table is formed and stored, and therefore the subsequent search can be conducted when whether the sub-pixels are located at the edge of the special-shaped display screen is judged. In other embodiments, the determination of the position coordinates of the sub-pixel may refer to other schemes provided in step S1021.
S1024: and if the first position coordinate is found, judging that the sub-pixel controlled by the input image signal is positioned at the edge of the special-shaped display screen.
Specifically, in an application example, when an input image signal is received, first, a first position coordinate of a sub-pixel controlled by the input image signal is obtained, for example, a row and column number where the sub-pixel is located is taken as the first position coordinate, then, the first position coordinate is searched in a pre-stored edge pixel table, and if the first position coordinate is searched in the edge pixel table, the sub-pixel is located at an edge of an irregular display screen, a step of subsequently processing the image signal needs to be performed. If the first position coordinate is not searched in the edge pixel table, the sub-pixel is not positioned at the edge of the special-shaped display screen, and the step of subsequently processing the image signal is not required.
This embodiment can also be combined with the second embodiment of the image display method of the present application.
In other embodiments, when determining whether the sub-pixel controlled by the input image signal is located at the edge of the irregular-shaped display screen, the determination may also be performed according to a distance between the sub-pixel and a preset sub-pixel.
Specifically, as shown in fig. 6, the fourth embodiment of the image display method of the present application is based on the first embodiment of the image display method of the present application, and step S102 further includes:
s1025: acquiring the distance between the sub-pixel and a preset sub-pixel of the special-shaped display screen;
the preset sub-pixel is a preset sub-pixel in the special-shaped display screen, for example, a center sub-pixel or a first row and a first column sub-pixel, and the preset sub-pixel may be specifically set according to actual factors such as a shape and a size of the special-shaped display screen, and is not specifically limited herein.
Specifically, referring to fig. 7, in an application example, the edge of the special-shaped display screen is arc-shaped, and an arc with a radius d, such as 1/4 arc, may be adopted in advance, and when the special-shaped display screen is cut, the arc is located right at the edge of the special-shaped display screen, where the center of the preset sub-pixel is the center of the arc (e.g., the sub-pixel in the first row and the first column), and the radius d may be determined according to the size of the display screen. The distance between the sub-pixel and the preset sub-pixel can be obtained by calculating the distance between the sub-pixel and the circle center of the circular arc, and specifically can be calculated by the following formula:
where dis is the distance, (x, y) is the first position coordinate of the sub-pixel, (x)c,yc) Is the center coordinate of the arc.
Of course, in other application examples, different types of lines may be selected according to the shape of the special-shaped display screen to intercept the edge, which is not specifically limited herein.
S1026: judging whether the distance is within a preset range;
s1027: if the judgment result is yes, the sub-pixel controlled by the input image signal is judged to be positioned at the edge of the special-shaped display screen.
Wherein the preset range is determined according to the position of the preset sub-pixel and the allowable error.
For example, in the above application example, when an edge is cut by an 1/4 arc with a radius d, the center of the arc is the center of the sub-pixel in the first row and the first column, the allowable error is a cutting error Δ, and the preset range is (d- Δ, d), that is, when the distance d- Δ < dis < d between the sub-pixel and the preset sub-pixel is determined to be within the preset range. Wherein the truncation error Δ may be a width of one sub-pixel.
This embodiment can also be combined with the second embodiment of the image display method of the present application.
As shown in fig. 8, an embodiment of the display device 80 of the present application includes:
a processor 801 for executing instructions to implement the method as provided in any one of the first to fourth embodiments of the image display method of the present application or non-conflicting combinations thereof.
The special-shaped display device 80 of this embodiment may further include components such as a display card, a memory, a keyboard, and a communication circuit according to actual requirements, which is not specifically limited herein.
In this embodiment, the special-shaped display device 80 may be a special-shaped display, or may be a device such as a mobile phone, a tablet, a computer, or a component integrated in the above device, such as a signal processing chip.
As shown in fig. 9, in an embodiment of the apparatus with storage function of the present application, the apparatus with storage function 90 internally stores a program 901, and the program 901 is executed to implement the method provided in any one of the first to fourth embodiments of the image display method of the present application or their non-conflicting combinations.
The device 90 with storage function may be a portable storage medium such as a usb disk and an optical disk, or may be a mobile phone, a server, a display, or a separate component integrated in the above device, such as a signal processing chip.
The above description is only for the purpose of illustrating embodiments 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 of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (3)
1. An image display method, comprising:
recording position coordinates of all sub-pixels positioned at the edge of the special-shaped display screen to form an edge pixel table; the edge pixel table only records the position coordinates of all sub-pixels positioned at the edge of the special-shaped display screen; the position coordinates of the sub-pixels take the central sub-pixel of the display screen as a coordinate origin, and one sub-pixel in each row or each column is taken as a coordinate unit;
acquiring a first position coordinate of the sub-pixel controlled by an input image signal, and searching the first position coordinate in the edge pixel table;
if the first position coordinate is found, determining that the sub-pixel controlled by the input image signal is positioned at the edge of the special-shaped display screen; filtering the image signal by using a low-pass filter to filter high-frequency components in the image signal, so that the gray-scale value of the sub-pixel is reduced, the color of the sub-pixel is different from that of an adjacent sub-pixel, so that the sub-pixel and the adjacent sub-pixel form a complete RGB pixel, the color edge is reduced, and the low-pass filter is an N-order low-pass filter, wherein N is an odd number greater than 2; storing the processed image signal;
if the first position coordinate is not found, judging that the sub-pixel controlled by the input image signal is not positioned at the edge of the special-shaped display screen, storing the image signal, continuously acquiring the first position coordinate of the sub-pixel controlled by the input image signal, and searching the first position coordinate in the edge pixel table;
and simultaneously outputting the stored unprocessed image signals and the processed image signals to display a processed image.
2. A contoured display device, comprising: a processor for executing instructions to implement the image display method of claim 1.
3. An apparatus having a storage function, in which a program is stored, characterized in that the program is executed to realize the image display method according to claim 1.
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| CN109859668A (en) * | 2019-03-12 | 2019-06-07 | 深圳市华星光电技术有限公司 | A kind of image compensation method and its device of circle display panel |
| CN109817158B (en) * | 2019-03-28 | 2020-10-16 | 重庆惠科金渝光电科技有限公司 | Display panel driving method and device and display device |
| CN110517231B (en) * | 2019-08-13 | 2023-12-22 | 云谷（固安）科技有限公司 | Method and device for detecting display edge of screen body |
| CN114296678B (en) * | 2021-12-30 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | Special-shaped screen display method, device, display control equipment and storage medium |
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| CN107526201A (en) * | 2017-09-19 | 2017-12-29 | 厦门天马微电子有限公司 | A kind of driving method of display panel, display device and display panel |
| CN107610143A (en) * | 2017-09-29 | 2018-01-19 | 上海天马有机发光显示技术有限公司 | Image processing method, image processing apparatus, image processing system and display device |
| CN107644410A (en) * | 2017-09-29 | 2018-01-30 | 上海天马有机发光显示技术有限公司 | Image processing method, image processing apparatus, image processing system and display device |
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