CN114760427A - LED display control method and device, intelligent terminal and storage medium - Google Patents

LED display control method and device, intelligent terminal and storage medium Download PDF

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Publication number
CN114760427A
CN114760427A CN202011580191.5A CN202011580191A CN114760427A CN 114760427 A CN114760427 A CN 114760427A CN 202011580191 A CN202011580191 A CN 202011580191A CN 114760427 A CN114760427 A CN 114760427A
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Prior art keywords
led display
canvas
target
target image
local
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张越铭
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The invention discloses a display control method and device of an LED display, an intelligent terminal and a storage medium, wherein the display control method of the LED display comprises the following steps: acquiring target image information; filling a target canvas of the LED display based on the target image information to obtain a filling canvas; adjusting a local backlight setting of the LED display based on the populated canvas; controlling local display of the LED display based on the local backlight setting. The scheme of the invention can fill the canvas of the LED display based on the target image information to be displayed, and adjust the local backlight setting of the LED display based on the filled canvas, thereby realizing the local control of the display of the LED display based on the local backlight setting. Therefore, the scheme of the invention can realize local control on the LED display, is beneficial to realizing small-window display of the LED display and improves user experience.

Description

LED display control method and device, intelligent terminal and storage medium
Technical Field
The invention relates to the technical field of television display control, in particular to a display control method and device of an LED display, an intelligent terminal and a storage medium.
Background
With the development of science and technology and the improvement of living standard of people, display devices for playing images such as televisions have become important tools for people to enjoy leisure and entertainment, and the development of display devices such as televisions is receiving more and more attention. At present, the OLED display is developed rapidly, and the OLED display can turn on or off individual pixel points, but the OLED display cannot be widely applied in the field of televisions due to high cost, and the LED display is still a mainstream product at present.
In the prior art, an LED display can only turn on or off a whole screen, and cannot control the turning on or off of individual pixels like an OLED display. The problem of the prior art is that the LED display can only turn on or off a whole screen, and cannot realize small window display of display devices such as televisions, which affects user experience.
Thus, there is still a need for improvement and development of the prior art.
Disclosure of Invention
The invention provides a display control method and device of an LED display, an intelligent terminal and a storage medium, which are used for solving the technical problems that in the prior art, the LED display can only light or close a whole screen, small-window display of display equipment such as a television and the like cannot be realized, and user experience is influenced.
In order to achieve the above technical effects, a first aspect of the present invention provides a method for controlling display of an LED display, wherein the method includes:
acquiring target image information;
filling a target canvas of the LED display based on the target image information to obtain a filling canvas;
adjusting a local backlight setting of the LED display based on the canvas for populating;
controlling local display of the LED display based on the local backlight setting.
Optionally, the obtaining target image information includes:
acquiring application data of a target application, wherein the target application is an application needing to be displayed on the LED display;
and acquiring the target image information based on the application data.
Optionally, the target image information includes a target image, image coordinates, and an image size.
Optionally, the populating a target canvas of an LED display based on the target image information to obtain a populated canvas includes:
filling the target image into a target canvas of the LED display according to a preset proportion based on the image coordinates and the image size;
and filling black field signals into other areas of the target canvas filled with the target image to obtain the filled canvas, wherein the other areas are areas except the target image in the target canvas filled with the target image.
Optionally, the filling the target image into the target canvas of the LED display according to a preset ratio based on the image coordinates and the image size includes:
acquiring the size of a target canvas of the LED display;
establishing a coordinate corresponding relation between the target image and the target canvas based on the image size and the target canvas size;
and filling the target image into the target canvas of the LED display based on the image coordinate, the preset proportion and the coordinate corresponding relation between the target image and the target canvas.
Optionally, the adjusting the local backlight setting of the LED display based on the canvas for filling includes:
and adjusting the local backlight setting of the LED display into a mode of turning off the backlight lamp in a black field.
Optionally, the controlling the local area display of the LED display based on the local area backlight setting includes:
and controlling the SOC to output a display signal to the LED display based on the mode that the backlight lamp is turned off by the black field.
The second aspect of the present invention provides an LED display control apparatus, wherein the apparatus comprises:
the image information acquisition module is used for acquiring target image information;
a canvas filling module for filling a target canvas of the LED display based on the target image information to obtain a filled canvas;
a local backlight setting module for adjusting local backlight settings of the LED display based on the canvas filler;
and the display control module is used for controlling the local display of the LED display based on the local backlight setting.
A third aspect of the present invention provides an intelligent terminal, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of any one of the LED display control methods.
A fourth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the any one LED display control method.
Therefore, the scheme of the invention obtains the target image information; filling a target canvas of the LED display based on the target image information to obtain a filling canvas; adjusting a local backlight setting of the LED display based on the canvas for populating; controlling local display of the LED display based on the local backlight setting. The scheme of the invention can fill the canvas of the LED display based on the target image information to be displayed and adjust the local backlight setting of the LED display based on the filled canvas, thereby realizing the local control of the display of the LED display based on the local backlight setting. Compared with the LED display control scheme in the prior art, which can only turn on or off the whole screen, the scheme of the invention can realize local control on the LED display, is favorable for realizing small-window display of display equipment such as a television and the like, and improves user experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flowchart of a display control method for an LED display according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating the step S100 in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a detailed process of step S200 in FIG. 1 according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating the step S201 in FIG. 3 according to an embodiment of the present invention;
FIG. 5 is a flow chart of another method for controlling the display of an LED display according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a display effect corresponding to the process in FIG. 5 according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an LED display control apparatus according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a specific structure of the image information obtaining module 710 shown in FIG. 7 according to an embodiment of the present invention;
FIG. 9 is a diagram illustrating a specific structure of the canvas filling module 720 in FIG. 7 according to an embodiment of the present invention;
fig. 10 is a schematic block diagram of an internal structure of an intelligent terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when …" or "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted depending on the context to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as specifically described and similarly intended by those of ordinary skill in the art without departing from the spirit of the present invention, which is not limited to the specific embodiments disclosed below.
At present, a television is an indispensable electronic device in human life, and with the development of scientific technology, the improvement and development of the television are receiving more attention, and especially, the research on a television screen and a display control scheme of the television screen is focused more. The existing smart television can generally realize screen-casting playing of devices such as mobile phones and the like, but in the screen-casting playing or other playing processes, the picture to be displayed is often smaller, only a small television window is needed for playing, and the whole television screen is not needed to be lightened. In the prior art, there are televisions with OLED screens, and the televisions with OLED screens can implement a control scheme for turning on or off individual pixel points. However, since the cost of the OLED screen is high, the OLED screen cannot be widely applied in the television field, and the LED display is still the mainstream product at present.
The screen of the LED display uses a Light Emitting Diode (LED) as a backlight source, and at present, due to the technical difference, the LED display can only be controlled in a whole block, that is, only the whole block of screen can be turned on or off, and a single pixel point cannot be turned on or off like an OLED screen. Therefore, in actual use, the existing LED display cannot adapt to the actual size of the image to be displayed, cannot realize small-window display, and affects user experience; and continuously lighting the whole screen causes large power consumption when unnecessary (such as when only a small image is actually required to be displayed), which is not beneficial to realizing energy saving and environmental protection. Therefore, a better display control method for the LED display is needed.
In order to solve the problems in the prior art, the invention provides a display control method of an LED display, in the embodiment of the invention, target image information is obtained; filling a target canvas of the LED display based on the target image information to obtain a filling canvas; adjusting a local backlight setting of the LED display based on the populated canvas; controlling local display of the LED display based on the local backlight setting. The scheme of the invention can fill the canvas of the LED display based on the target image information to be displayed, and adjust the local backlight setting of the LED display based on the filled canvas, thereby realizing the local control of the display of the LED display based on the local backlight setting. Compared with the LED display control scheme in the prior art that only the whole screen can be turned on or off, the scheme of the invention can realize local control of the LED display, is favorable for realizing small window display of a television, improves user experience, reduces power consumption of the television, and is favorable for realizing energy conservation and environmental protection.
Exemplary method
As shown in fig. 1, an embodiment of the present invention provides a method for controlling display of an LED display, where the method includes the following steps:
step S100, target image information is acquired.
Wherein the target image information is information of an image required to be displayed on the LED display. Based on the target image information, the LED display may be controlled to display a corresponding image. Optionally, the target image information may be information of an image that needs to be displayed by the LED display itself, or may also be information of an image that needs to be displayed by the LED display by another device connected to the LED display screen, which is not limited specifically herein.
Step S200, filling a target canvas of the LED display based on the target image information to obtain a filling canvas.
Wherein the target canvas is an area of the LED display for displaying a corresponding image. Optionally, the target canvas may be an area corresponding to the entire screen of the LED display, or may be a partial area of the screen of the LED display, which is not specifically limited herein. For example, when the entire screen of the LED display is used to display only the corresponding target image, the area corresponding to the screen of the LED display may be used as the target canvas. When the LED display needs to perform multi-window display, other images need to be displayed besides the target image, or a plurality of target images exist, and corresponding display windows are allocated to the images, the target canvas is a screen area corresponding to the target image.
Step S300, local backlight setting of the LED display is adjusted based on the filling canvas.
And S400, controlling the local area display of the LED display based on the local area backlight setting.
Optionally, the controlling the local display of the LED display based on the local backlight setting specifically includes: controlling a screen portion display of the LED display based on the local backlight setting. Specifically, part of the screen of the LED display is enabled to display a target image, and other parts are enabled to be closed, so that small windows of a television are displayed, user experience is improved, power consumption is reduced, and energy conservation and environmental protection are achieved.
Specifically, after the canvas is filled, the local backlight setting of the LED display may be adjusted according to the corresponding adjustment in the canvas, so as to control the display condition of the screen of the LED display based on the local backlight setting. In this embodiment, in step S400, a System On Chip (SOC) connected to the LED display is controlled to output a display signal to a screen, and the screen display of the LED display is controlled according to specific data set by the local dimming (local dimming) technology. Therefore, local control of the screen of the LED display can be achieved, small window display of a television can be achieved, and user experience is improved.
Therefore, the LED display control method provided by the embodiment of the invention obtains the target image information; filling a target canvas of the LED display based on the target image information to obtain a filling canvas; adjusting a local backlight setting of the LED display based on the populated canvas; controlling local display of the LED display based on the local backlight setting. The scheme of the invention can fill the canvas of the LED display based on the target image information to be displayed, and adjust the local backlight setting of the LED display based on the filled canvas, thereby realizing the local control of the display of the LED display based on the local backlight setting. Compared with the LED display control scheme in the prior art, which can only turn on or off the whole screen, the scheme of the invention can realize local control on the LED display, is favorable for realizing small-window display of display equipment such as a television and the like, and improves user experience.
Optionally, as shown in fig. 2, in this embodiment, the step S100 includes:
step S101, obtaining application data of a target application, wherein the target application is an application needing to be displayed on the LED display.
Step S102, based on the application data, the target image information is obtained.
Optionally, the image coordinates may be coordinates of a center point of the corresponding target image, or coordinates corresponding to a point at a lower left corner of the target image, or coordinates of other preset points, which is not limited specifically herein.
Specifically, the target application may be an application carried by the LED display for outputting an image or a video, or an application that needs to be projected on the LED display in an electronic device connected to the LED display, and is not limited in this respect. The application data may include data such as a name of the target application, an application ID, an application type, a screen range requested to be obtained, and the like, and may further include other data, which is not specifically limited herein.
Specifically, the target image information is information of an image or video that the target application needs to display through the LED display. In this embodiment, an image that a target application needs to display through the LED display is taken as an example for description. In actual use, the target application may also be a video which needs to be displayed by the LED display, and at this time, the video may be processed frame by frame to obtain corresponding target image information, so that screen local display control of the LED display when playing the video is realized, and user experience is improved. Other processing modes are also possible, and are not particularly limited herein.
In this embodiment, the target image information includes the target image itself to be displayed, the corresponding image coordinates, and the image size, so that the size and the position of the corresponding target image displayed on the screen of the LED display can be controlled based on the target image information.
Specifically, as shown in fig. 3, in this embodiment, the step S200 includes:
step S201, based on the image coordinates and the image size, filling the target image into a target canvas of the LED display according to a preset ratio.
The preset ratio is a preset scaling ratio of the target image, for example, when the preset ratio is set to 1:1, the target image is filled on a target canvas of the LED display at a ratio of 1: 1. Further, if the area corresponding to the target canvas of the LED display is the area of the whole screen, the target image is displayed on the whole screen of the LED display in a ratio of 1: 1. If the area corresponding to the target canvas of the LED display is a partial area of the whole screen, for example, the LED display is to perform split-screen display on two applications, and the target application corresponding to the target image is divided into one half of the whole screen, the area corresponding to the target canvas is a half area of the corresponding screen, and the target image is to be displayed in the one half area of the corresponding screen in a ratio of 1: 1.
Optionally, the preset ratio may also be adjusted according to a user requirement in an actual use process, so that a user may appropriately adjust a scaling ratio of the target image to obtain a better viewing experience.
Step S202, filling black field signals into other areas of the target canvas filled with the target image to obtain the filled canvas, wherein the other areas are areas except the target image in the target canvas filled with the target image.
Specifically, after the target image is filled, the other area of the target canvas is an area that does not need to be displayed, and at this time, the other area may be filled to black, that is, a black field signal is filled to indicate that the area does not need to be displayed, so as to obtain a corresponding filled canvas. Further, if the area corresponding to the target canvas of the LED display is the area of the whole screen, the obtained filling canvas is also the area of the whole screen of the LED display. And if the LED display is to perform split-screen display on two or more applications, the sum of the areas corresponding to the filling canvas corresponding to each application forms the area of the whole screen of the LED display. Therefore, even if the LED display is to split screen display two or more applications, the local backlight setting in the corresponding region of each filling canvas can be adjusted respectively based on each filling canvas, so that the local display is performed in each screen region after the split screen control, the user experience is further improved, the power consumption of the LED display is greatly reduced, and the energy-saving and environment-friendly performance of the LED display is improved.
Specifically, as shown in fig. 4, in this embodiment, the step S201 includes:
step S2011, a target canvas size of the LED display is acquired.
Step S2012, based on the image size and the target canvas size, establishing the coordinate corresponding relation between the target image and the target canvas.
And step S2013, filling the target image into the target canvas of the LED display based on the image coordinate, the preset proportion and the coordinate corresponding relation between the target image and the target canvas.
Wherein the target canvas size is a size of a target canvas corresponding to the target image. Therefore, the coordinate corresponding relation between the target canvas and the target image is established, the target image can be mapped to the corresponding target canvas based on the coordinate corresponding relation, and filling is achieved.
Specifically, in this embodiment, the adjusting the local backlight setting of the LED display based on the canvas for filling includes: and adjusting the local backlight setting of the LED display into a mode of turning off the backlight lamp in a black field.
Further, in this embodiment, the controlling the local display of the LED display screen based on the local backlight setting includes: and controlling the SOC to output a display signal to the LED display based on the mode that the backlight lamp is turned off by the black field. The SOC chip is connected with the LED display and used for controlling display pictures, and when the LED display is applied to a television, the SOC chip can be the SOC chip of the television.
Therefore, after the black field signals are filled in other areas of the target canvas, the local backlight setting of the LED display is adjusted to be a mode of turning off the backlight in the black field, so that when the LED display is displaying, the backlight corresponding to other areas (namely the black field areas) is turned off, and the other corresponding areas are ensured not to be turned on, thereby realizing the small-window display of the LED display, reducing the power consumption, and improving the user experience and the environment-friendly and energy-saving performance.
Optionally, fig. 5 is a schematic flowchart of a specific method for controlling display of an LED display provided in this embodiment, and fig. 6 is a schematic diagram of a display effect corresponding to the flowchart of fig. 5 provided in this embodiment. As shown in fig. 5, a specific method for controlling the display of the LED display in this embodiment includes: step S501, acquiring a target image to be displayed, image coordinates and an image size, in this embodiment, the abscissa of the target image is 860, the ordinate is 490, and the coordinate of the center point of the target image relative to the lower left origin of the target image corresponds to the coordinate; step S502, a target canvas is filled based on the target image, the image coordinate, the image size and a preset proportion, and black field signals are filled in other areas of the target canvas to obtain the filled canvas, wherein the preset proportion is 1:1 in the embodiment; step S503, adjusting the local backlight setting of the LED display to a mode of turning off the backlight in a black field; and step S504, controlling the screen display of the LED display. The image in fig. 6 corresponds to the original target image, the canvas filling effect diagram obtained in step S502, and the LED display effect diagram finally obtained in step S504 in sequence.
As can be seen from the above, the display control method for the LED display provided in the embodiment of the present invention utilizes an image processing technology, superimposes a black field signal on an image to be displayed through calculation, and turns off all backlights in a black field signal area through a local backlight control technology, and turns on the backlights in the presence of an image signal normally. The purpose of independently lighting a certain area on the LED screen is achieved, and the method can be suitable for a new scene in an intelligent home. The method can reduce the power consumption of the television and simultaneously enable the user to obtain better experience when the information is not required to be displayed on the whole screen.
Optionally, the method for controlling display of an LED display provided in the present invention may also be used in other electronic devices with screen display technologies that are the same as those of the LED display, for example, an LED television, which is not limited specifically herein.
Exemplary device
As shown in fig. 7, corresponding to the LED display control method, an embodiment of the present invention further provides an LED display control apparatus, where the LED display control apparatus includes:
an image information obtaining module 710, configured to obtain target image information.
Wherein the target image information is information of an image required to be displayed on the LED display. Based on the target image information, the LED display may be controlled to display a corresponding image. Optionally, the target image information may be information of an image that needs to be displayed by the LED display itself, or may also be information of an image that needs to be displayed by the LED display by another device connected to the LED display screen, which is not limited specifically herein.
A canvas filling module 720 for filling a target canvas of the LED display based on the target image information, obtaining a filled canvas.
Wherein the target canvas is an area of the LED display for displaying a corresponding image. Optionally, the target canvas may be an area corresponding to the entire screen of the LED display, or may be a partial area of the screen of the LED display, which is not specifically limited herein. For example, when the entire screen of the LED display is used to display only the corresponding target image, the area corresponding to the screen of the LED display may be used as the target canvas. When the LED display needs to perform multi-window display, and other images need to be displayed besides the target image, or there are multiple target images, and a corresponding display window is allocated to each image, the target canvas is a screen area corresponding to the target image.
A local backlight setting module 730, configured to adjust a local backlight setting of the LED display based on the canvas for filling.
A display control module 740 configured to control the local display of the LED display based on the local backlight setting.
Optionally, the controlling the local display of the LED display based on the local backlight setting specifically includes: controlling a screen portion display of the LED display based on the local backlight setting. Specifically, part of the screen of the LED display is enabled to display a target image, and other parts are enabled to be closed, so that small windows of a television are displayed, user experience is improved, power consumption is reduced, and energy conservation and environmental protection are achieved.
Specifically, after the canvas is obtained, the local backlight setting of the LED display may be adjusted according to the corresponding adjustment in the canvas, so as to control the display condition of the screen of the LED display based on the local backlight setting. In this embodiment, the display control module 740 is specifically configured to: and controlling a System On Chip (SOC) connected with the LED display to output a display signal to a screen, and controlling the screen display of the LED display according to specific data set by the regional backlight through a local dimming (local dimming) technology. Therefore, local control of the screen of the LED display can be achieved, small window display of a television can be achieved, and user experience is improved.
As can be seen from the above, the LED display control apparatus according to the embodiment of the present invention obtains the target image information through the image information obtaining module 710; populating, by a canvas population module 720, a target canvas of the LED display based on the target image information, obtaining a populated canvas; adjusting, by a local backlight setting module 730, local backlight settings of the LED display based on the populated canvas; the local display of the LED display is controlled by the display control module 740 based on the local backlight setting. The scheme of the invention can fill the canvas of the LED display based on the target image information to be displayed, and adjust the local backlight setting of the LED display based on the filled canvas, thereby realizing the local control of the display of the LED display based on the local backlight setting. Compared with the LED display control scheme in the prior art, which can only turn on or off the whole screen, the scheme of the invention can realize local control on the LED display, is favorable for realizing small-window display of display equipment such as a television and the like, and improves user experience.
Optionally, as shown in fig. 8, the image information obtaining module 710 includes:
the application data acquiring unit 711 acquires application data of a target application, where the target application is an application that needs to be displayed on the LED display.
An image information acquisition unit 712 that acquires the target image information based on the application data.
Optionally, the image coordinates may be coordinates of a center point of the corresponding target image, or coordinates corresponding to a point at a lower left corner of the target image, or coordinates of other preset points, which is not limited specifically herein.
Specifically, the target application may be an application carried by the LED display for outputting an image or a video, or an application that needs to be projected on the LED display in an electronic device connected to the LED display, and is not limited in this respect. The application data may include data such as a name of the target application, an application ID, an application type, a screen range requested to be obtained, and the like, and may further include other data, which is not specifically limited herein.
Specifically, the target image information is information of an image or video that the target application needs to display through the LED display. In this embodiment, an image that a target application needs to display through the LED display is taken as an example for description. In actual use, the target application may also be a video which needs to be displayed by the LED display, and at this time, the video may be processed frame by frame to obtain corresponding target image information, so that screen local display control of the LED display when playing the video is realized, and user experience is improved. Other processing modes are also possible, and are not particularly limited herein.
In this embodiment, the target image information includes the target image itself to be displayed, the corresponding image coordinates, and the image size, so that the size and the position of the corresponding target image displayed on the screen of the LED display can be controlled based on the target image information.
Optionally, as shown in fig. 9, the canvas filling module 720 includes:
an image filling unit 721 for filling the target image to a target canvas of the LED display in a preset ratio based on the image coordinates and the image size.
The preset ratio is a preset scaling ratio of the target image, for example, when the preset ratio is set to 1:1, the target image is filled on a target canvas of the LED display at a ratio of 1: 1. Further, if the area corresponding to the target canvas of the LED display is the area of the whole screen, the target image is displayed on the whole screen of the LED display in a ratio of 1: 1. If the area corresponding to the target canvas of the LED display is a partial area of the whole screen, for example, the LED display is to perform split-screen display on two applications, and the target application corresponding to the target image is divided into one half of the whole screen, the area corresponding to the target canvas is a half area of the corresponding screen, and the target image is to be displayed in the half area of the corresponding screen in a ratio of 1: 1.
Optionally, the preset ratio may be adjusted according to a user requirement in an actual use process, so that a user may appropriately adjust a zoom ratio of the target image to obtain a better viewing experience.
A black field filling unit 722, configured to fill a black field signal in another region of the target canvas filled with the target image, to obtain a filled canvas, where the another region is a region of the target canvas filled with the target image except for the target image.
Specifically, after the target image is filled, the other area of the target canvas is an area that does not need to be displayed, and at this time, the other area may be filled to black, that is, a black field signal is filled to indicate that the area does not need to be displayed, so as to obtain a corresponding filled canvas. Further, if the area corresponding to the target canvas of the LED display is the area of the whole screen, the obtained filling canvas is also the area of the whole screen of the LED display. And if the LED display needs to display two or more applications in a split screen mode, the sum of the areas corresponding to the filling canvas corresponding to each application forms the area of the whole screen of the LED display. Therefore, even the LED display is to split screen display two or more applications, also can adjust the local backlight setting in each filling canvas corresponding region respectively based on each filling canvas to control each screen region after splitting screen and carry out local display, further promote user experience, and reduce by a wide margin the consumption of LED display promotes the energy-concerving and environment-protective performance of LED display.
Specifically, in this embodiment, the image filling unit 721 is specifically configured to: acquiring the size of a target canvas of the LED display; establishing a coordinate corresponding relation between the target image and the target canvas based on the image size and the target canvas size; and filling the target image into the target canvas of the LED display based on the image coordinate, the preset proportion and the coordinate corresponding relation between the target image and the target canvas.
Wherein the target canvas size is a size of a target canvas corresponding to the target image. Therefore, the coordinate corresponding relation between the target canvas and the target image is established, the target image can be mapped to the corresponding target canvas based on the coordinate corresponding relation, and filling is achieved.
Specifically, in this embodiment, the local backlight setting module 730 is specifically configured to: and adjusting the local backlight setting of the LED display into a mode of turning off the backlight lamp in a black field.
Further, in this embodiment, the display control module 740 is specifically configured to: and controlling the SOC to output a display signal to the LED display based on the mode that the backlight lamp is turned off by the black field. The SOC chip is connected with the LED display and used for controlling display pictures, and when the LED display is applied to a television, the SOC chip can be the SOC chip of the television.
Therefore, after the black field signals are filled in other areas of the target canvas, the local backlight setting of the LED display is adjusted to a mode of turning off the backlight in the black field, so that when the LED display is displaying, the backlight corresponding to other areas (namely the black field areas) is turned off, and the corresponding other areas are ensured not to be turned on, thereby realizing the small-window display of the LED display, reducing the power consumption, and improving the user experience and the environment-friendly and energy-saving performance.
Optionally, the LED display control device provided in the present invention may also be used to control other electronic devices, such as an LED television, having a screen display technology the same as that of the LED display, and is not limited specifically herein.
Based on the above embodiments, the present invention further provides an intelligent terminal, and a schematic block diagram thereof may be as shown in fig. 10. The intelligent terminal comprises a processor, a memory, a network interface and a display screen which are connected through a system bus. Wherein, the processor of the intelligent terminal is used for providing calculation and control capability. The memory of the intelligent terminal comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the intelligent terminal is used for being connected and communicated with an external terminal through a network. The computer program, when executed by a processor, implements the steps of any of the above-described LED display control methods. The display screen of the intelligent terminal can be a liquid crystal display screen or an electronic ink display screen.
It will be understood by those skilled in the art that the block diagram of fig. 10 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the intelligent terminal to which the solution of the present invention is applied, and a specific intelligent terminal may include more or less components than those shown in the figure, or combine some components, or have different arrangements of components.
In one embodiment, an intelligent terminal is provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when executed by the processor, the computer program performs the following operations:
acquiring target image information;
filling a target canvas of the LED display based on the target image information to obtain a filling canvas;
adjusting a local backlight setting of the LED display based on the canvas for populating;
controlling local display of the LED display based on the local backlight setting.
The embodiment of the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the steps of any one of the methods for controlling the display of the LED display provided by the embodiment of the invention are realized.
It should be understood that, the sequence numbers of the steps in the embodiments do not imply an 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 invention.
It should be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional units and modules is only used for illustration, and in practical applications, the functions may be distributed as different functional units and modules according to needs, that is, the internal structure of the apparatus may be divided into different functional units or modules to implement all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in detail in a certain embodiment.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and the actual implementation may be implemented by another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium and used for instructing related hardware, and when the computer program is executed by a processor, the steps of the embodiments of the method may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the contents contained in the computer-readable storage medium can be increased or decreased as appropriate according to the requirements of legislation and patent practice in the jurisdiction.
The above-mentioned embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.

Claims (10)

1. A display control method of an LED display, characterized in that the method comprises:
acquiring target image information;
filling a target canvas of the LED display based on the target image information to obtain a filling canvas;
adjusting a local backlight setting of the LED display based on the populated canvas;
controlling local display of the LED display based on the local backlight setting.
2. The LED display control method according to claim 1, wherein the acquiring target image information includes:
acquiring application data of a target application, wherein the target application is an application required to be displayed on the LED display;
and acquiring the target image information based on the application data.
3. The LED display control method of claim 2, wherein the target image information includes a target image, image coordinates, and image size.
4. The LED display control method of claim 3, wherein said populating a target canvas of an LED display based on the target image information, obtaining a populated canvas, comprises:
filling the target image into a target canvas of the LED display according to a preset proportion based on the image coordinates and the image size;
and filling black field signals in other areas of the target canvas filled with the target image to obtain the filled canvas, wherein the other areas are areas except the target image in the target canvas filled with the target image.
5. The method of claim 4, wherein the filling the target image into the target canvas of the LED display at a preset scale based on the image coordinates and the image size comprises:
acquiring the size of a target canvas of the LED display;
establishing a coordinate corresponding relation between the target image and the target canvas based on the image size and the target canvas size;
and filling the target image into the target canvas of the LED display based on the image coordinate, the preset proportion and the coordinate corresponding relation between the target image and the target canvas.
6. The LED display control method of claim 4 or 5, wherein the adjusting the local backlight setting of the LED display based on the populated canvas comprises:
and adjusting the local backlight setting of the LED display into a mode of turning off the backlight lamp in a black field.
7. The LED display control method of claim 6, wherein the controlling the local display of the LED display based on the local backlight setting comprises:
and controlling the SOC to output a display signal to the LED display based on the mode that the backlight lamp is turned off by the black field.
8. An LED display control apparatus, comprising:
the image information acquisition module is used for acquiring target image information;
a canvas filling module for filling a target canvas of the LED display based on the target image information to obtain a filled canvas;
a local backlight setting module for adjusting local backlight settings of the LED display based on the canvas filler;
and the display control module is used for controlling the local display of the LED display based on the local backlight setting.
9. An intelligent terminal, characterized in that it comprises a memory, a processor and a computer program stored on said memory and executable on said processor, said computer program, when executed by said processor, implementing the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
CN202011580191.5A 2020-12-28 2020-12-28 LED display control method and device, intelligent terminal and storage medium Pending CN114760427A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024060064A1 (en) * 2022-09-21 2024-03-28 Qualcomm Incorporated Miracast end to end (e2e) stream transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024060064A1 (en) * 2022-09-21 2024-03-28 Qualcomm Incorporated Miracast end to end (e2e) stream transmission

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