CN116884341A - Wall-mounted LED display device and method - Google Patents
Wall-mounted LED display device and method Download PDFInfo
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- CN116884341A CN116884341A CN202311139658.6A CN202311139658A CN116884341A CN 116884341 A CN116884341 A CN 116884341A CN 202311139658 A CN202311139658 A CN 202311139658A CN 116884341 A CN116884341 A CN 116884341A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 description 16
- 239000002184 metal Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- 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]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application discloses a wall-mounted LED display device and a method, wherein the device comprises a box bracket, a display box and a controller, wherein the box bracket is used for simultaneously providing support for a plurality of display boxes; the display box body comprises a front surface and a back surface, wherein a display screen is arranged on the front surface, a magnetic block and a driving chip are arranged on the back surface, and the driving chip controls the working state of the display screen by controlling the connectivity of the conductive column; the controller is used for receiving an externally input image signal and dynamically changing the pixel density of the LED display device by controlling the driving chip according to the picture content to be displayed by the image signal. The application effectively reduces the overall power consumption through the dynamic change of the pixel density.
Description
Technical Field
The present application relates generally to the field of display technology. More particularly, the present application relates to a wall-mounted LED display device and method.
Background
The wall-mounted display device can be used as a large display for outdoor and semi-outdoor use in a lecture hall or on a wall of a building. In the past, the wall-mounted display device using the LED system is mainstream, and has advantages such as high definition, low price, and low cost of the display screen. However, with the increasing size of the wall-mounted display device, the number of integrated display units is also greatly increased, with the result that although the display image quality is improved to some extent, the wall-mounted display device is at risk of high heat generation, high power consumption and reduced reliability. Therefore, how to average the image quality and the power consumption of the wall-mounted display device is a technical problem to be solved.
Disclosure of Invention
In order to solve at least the technical problems described in the background section, the application provides a wall-mounted LED display device and a method thereof. By utilizing the scheme of the application, the overall power consumption of the display device is reduced by dynamically changing the display pixel density of the wall-mounted display device. In view of this, the present application provides a solution in a number of aspects as follows.
A first aspect of the present application provides a wall-mounted LED display device, comprising a case stand, a display case, and a controller, wherein: the box body bracket is used for simultaneously providing support for a plurality of display box bodies; the display box body comprises a front surface and a back surface, a display screen is arranged on the front surface, a magnetic attraction block and a driving chip are arranged on the back surface, the magnetic attraction block is used for connecting the display box body with the box body support, a conductive column is also arranged in the magnetic attraction block, so that the conductive column supplies power for the display screen, and the driving chip controls the working state of the display screen by controlling the connectivity of the conductive column; the controller is used for receiving an externally input image signal and dynamically changing the pixel density of the LED display device by controlling the driving chip according to the picture content to be displayed by the image signal.
In one embodiment, the driving chip controls the working state of the display screen by controlling the connectivity of the conductive posts, and the driving chip comprises: when the display screen is controlled to work, the power supply end of the display screen and an external power supply are communicated through the conductive column; when the display screen is controlled to be not operated, the power supply end of the display screen and an external power supply are disconnected through the conductive column.
In one embodiment, the driving chip controls the working state of the display screen by controlling the connectivity of the conductive posts, and the driving chip comprises: when the brightness change of the display screen is controlled, the control is completed by controlling the conduction degree of the conductive column and an external power supply.
In one embodiment, according to the picture content to be displayed by the image signal, the pixel density of the LED display device is dynamically changed by controlling the driving chip, including: acquiring the image signal; converting the image signal to obtain transmission image information, wherein the transmission image information comprises the transmitted image information and frame rate information; and respectively controlling the driving chip of each display box body based on the transmission image information.
In one embodiment, the driving chip for controlling each of the display cases based on the transmission image information includes: analyzing the image information to obtain pixel distribution conditions, wherein the pixel distribution conditions comprise the number of the display screens continuously displaying the same content; comparing the number of the display screens with a first threshold; and when the power supply is larger than the first threshold value, turning off the power supply of the first number of display screens.
In one embodiment, the driving chip for controlling each of the display cases based on the transmission image information includes: analyzing the frame rate information to obtain a frame rate of the content to be displayed; comparing the frame rate to a second threshold; and when the power supply is smaller than the second threshold value, turning off the power supply of the second number of display screens.
In one embodiment, the first number is half the number of the display screens that continuously display the same content.
In one embodiment, the second number is a preset number selected inward from an edge portion of the LED display device.
A second aspect of the present application provides a wall-mounted LED display method for displaying using the wall-mounted LED display device described in any one of the above.
By utilizing the scheme provided by the application, the content of the picture to be displayed by the wall-mounted LED display device is analyzed, so that the working state of each display box body is controlled, and the pixel density of the whole display device is dynamically controlled, so that the technical effect of reducing the whole power consumption is achieved. On the other hand, the application actively controls the conductivity of the conductive column in the magnetic lamp box, thereby effectively controlling the display lamp box, and therefore, the application has better reliability.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the application are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
fig. 1 is a schematic diagram showing a wall-mounted LED display device according to an embodiment of the present application;
fig. 2 is a block diagram showing a wall-mounted LED display device according to an embodiment of the present application;
fig. 3 is an effect diagram showing a wall-mounted LED display device according to an embodiment of the present application;
fig. 4 is a view showing the back of the display case according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the present application. All other embodiments, based on the embodiments of the application, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the application.
It should be understood that the terms "first," "second," "third," and "fourth," etc. in the claims, specification and drawings of the present application are used for distinguishing between different objects and not for describing a particular sequential order. The terms "comprises" and "comprising" when used in the specification and claims of the present application are taken to 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 application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification and 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 the present specification and claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Specific embodiments of the present application are described in detail below with reference to the accompanying drawings.
In a first aspect of the present application, a wall-mounted LED display device according to an embodiment of the present application is provided. As shown in fig. 1, a schematic diagram of a wall-mounted LED display device according to an embodiment of the present application may be summarized as including: the box bracket 100, the display box 200 and the controller 300.
Specifically, the case stand 100 is configured to provide support for a plurality of display cases at the same time.
The display box 200 comprises a front surface and a back surface, wherein a display screen is arranged on the front surface, a magnetic attraction block and a driving chip are arranged on the back surface, the magnetic attraction block is used for connecting the display box with a box support, a conductive column is further arranged in the magnetic attraction block so as to supply power to the display screen through the conductive column, and the driving chip controls the working state of the display screen through controlling the connectivity of the conductive column.
The controller 300 is configured to receive an externally input image signal, and dynamically change the pixel density of the LED display device by controlling the driving chip according to the picture content to be displayed by the image signal.
Specifically, the structure of the wall-mounted LED display device disclosed in the present application is shown in fig. 2 and 3. Wherein fig. 2 shows a structural diagram of a wall-mounted LED display device according to an embodiment of the present application, and fig. 3 is an effect diagram showing the wall-mounted LED display device according to an embodiment of the present application. Wherein 201 represents the display box array, 202 represents the wall surface, 203 represents the display box front surface, 204 represents the display box back surface, 301 represents the display box array, 302 represents the wall surface, and 303 represents the transmitter.
Preferably, the application adopts a wireless signal transmission mode to carry out picture transmission, and is realized by integrating a radio frequency module on a receiving card, so that the corresponding radio frequency module is also required to be integrated on a transmitter, the transmitting card firstly carries out box division operation on video signals transmitted by an upper computer, each LED displays video blocks of a box, the video blocks are respectively packaged and then are transmitted out through the radio frequency module, the receiving card identifies the corresponding video blocks and then receives signals for decoding, and then the decoded video signals are transmitted to a driving IC to drive LEDs for display in a wired mode. According to the display system designed by the application, the box body adopts magnetic power supply and radio frequency wireless signal transmission, so that the fixed support is omitted, and the space is saved. The LED display box body can be used as a decoration material/ceramic tile, stably attached to a wall, and can display fresco when a television program is not required to be watched, and can switch television signals when the television program is required to be watched. The method is also convenient for later maintenance and box replacement, and the damaged box body is directly taken down and replaced by a new one without complex disconnecting operation.
It should be noted that the specific composition of the display box in the drawings is only schematically represented. In a specific implementation process, the display box body can be used as an independent display screen to complete an independent display function, and can also be used as a single pixel for display on the premise that the size of the display box body meets the resolution.
In the application, the pixel density of the wall-mounted LED display device is dynamically reduced by adopting a method of analyzing the content of the display picture and closing part of the display lamp box when the content of the display picture meets specific requirements, thereby reducing the overall power consumption of the display device.
Specifically, in the application, an image signal which is sent to a display device by an external transmitter to be displayed is firstly obtained; then, the image signal is subjected to conversion operations such as decoding, digital/analog conversion, and the like to restore the image signal to obtain image information to be transmitted on the display device. And finally, respectively controlling the driving chip of each display box body based on the transmission image information, thereby respectively controlling the display state of each display box body.
Preferably, the transmission image information includes transmitted image information and frame rate information.
In a preferred embodiment of the application, the image to be displayed by the display device has been restored in the preceding step, and in this step the operating state of the display housing is controlled by analysing the image. The driving chip for controlling each display box based on the transmission image information comprises: analyzing the image information to obtain pixel distribution conditions, wherein the pixel distribution conditions comprise the number of the display screens continuously displaying the same content; comparing the number of the display screens with a first threshold; and when the power supply is larger than the first threshold value, turning off the power supply of the first number of display screens.
It can be understood that when the display contents of the display boxes are the same, the box power supply of which part is displayed in the same way can be turned off, so that the electric energy consumption is reduced. For example, when a single-color background is displayed, if the background has a large area of the same color, the same background display unit may be turned off. And how to judge whether the display lamp box is large in area or not and how to turn off the display lamp box can be adjusted according to the field display requirement. For example, when the display requirement is high, 3 or more consecutive display light boxes can be selected to display the same content as the judgment condition, and only one display light box is turned off as the judgment result; when the display requirement is low, the continuous 2 display lamp boxes can be selected to display the same content as a judging condition, and one display lamp box is turned off as a judging result. It should be noted that, after the working state of the lamp box is controlled, the display lamp box to be adjusted can be adjusted according to the actual display effect.
In a preferred embodiment of the present application, the driving chip for controlling each of the display cases based on the transmission image information may further include: analyzing the frame rate information to obtain a frame rate of the content to be displayed; comparing the frame rate to a second threshold; and when the power supply is smaller than the second threshold value, turning off the power supply of the second number of display screens.
It can be understood that when the display content of the display box is static content or when the frame rate is low, part of the box power supply can be turned off, so that the power consumption is reduced. In this case, considering a generally still picture or text displayed when the frame rate is low, and in the case of picture text display, the picture is emphasized in the middle of the picture, so that the pixel density of the content presenting the secondary emphasis from near the edge to near the center around the picture can be reduced, thereby reducing the power consumption. It should be noted that the specific range of decreasing the pixel density may be modified according to the actual effect.
Fig. 4 shows a schematic view of a rear structure of a display case according to an embodiment of the present application. As shown in fig. 4, 401 represents a metal column, and 402 represents a magnetic block. The small circles at four corners of the display box body represent magnetic attraction power supply modules, which are used for realizing magnetic attraction power supply of the LED display box body, and it is noted that the power supply modules need to supply power to all modules in the box body at the same time, and the power supply modules comprise all driving chips, light emitting chips and receiving cards comprising wireless signal transmission modules. The power of the single display box body is approximately 100-300W and is spread on 4 magnetic attraction contacts, and the power required by each magnetic attraction contact is 25-75W. The front of the display box body is a display module, the main body of the module is a PCB, the front of the PCB is a light-emitting chip, and the back of the PCB is a driving chip. Besides the magnetic wired power supply, a magnetic wireless power supply mode can be adopted, and only the metal column in the magnetic block on the back needs to be changed into a wireless power supply coil, and 4 wireless power supply coils are additionally arranged in each box body.
Further, the metal conductor column in the magnetic attraction block has activity characteristics, and the conductivity of the metal conductor column can be changed according to the control of the control signal. For example, when the display screen on the front surface of the display box body is controlled to work, the power supply end of the display screen and an external power supply are communicated through the conductive column; when the display screen is controlled to be not operated, the power supply end of the display screen and an external power supply are disconnected through the conductive column.
In particular, the display brightness of the whole display lamp box can be changed by changing the communication characteristic of the metal conductor and treating the metal conductor as a variable resistor. For example, when the conductivity of the metal column is reduced, the metal column can be equivalently connected with a large resistor in series; when the conductivity of the metal column is enhanced, the metal column can be equivalently connected with a small resistor in series. Therefore, the connection mode of the equivalent circuit is changed by changing the connectivity of the metal column, so that the brightness change of the display lamp box is regulated.
According to the application, the display lamp box is powered by adopting the connection mode of matching the metal columns in the magnetic attraction blocks, so that on one hand, the reliability of power supply is improved, and on the other hand, the arranged adjustable metal columns can effectively control the working condition of the display lamp box, so that the wiring operation is greatly simplified, and the reliability of the wall-mounted LED display device assembled in a large area is greatly improved.
The second aspect of the present application provides a wall-mounted LED display device described with reference to fig. 1 to 4; which is displayed by the wall-mounted LED display device described above.
While various embodiments of the present application have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the application. It should be understood that various alternatives to the embodiments of the application described herein may be employed in practicing the application. The appended claims are intended to define the scope of the application and to cover such modular compositions, equivalents, or alternatives falling within the scope of the claims.
Claims (9)
1. The utility model provides a wall-hanging LED display device which characterized in that includes box support, display box, controller, wherein:
the box body bracket is used for simultaneously providing support for a plurality of display box bodies;
the display box body comprises a front surface and a back surface, a display screen is arranged on the front surface, a magnetic attraction block and a driving chip are arranged on the back surface, the magnetic attraction block is used for connecting the display box body with the box body support, a conductive column is also arranged in the magnetic attraction block, so that the conductive column supplies power for the display screen, and the driving chip controls the working state of the display screen by controlling the connectivity of the conductive column;
the controller is used for receiving an externally input image signal and dynamically changing the pixel density of the LED display device by controlling the driving chip according to the picture content to be displayed by the image signal.
2. The wall-mounted LED display device of claim 1, wherein the driving chip controls the operating state of the display screen by controlling connectivity of the conductive posts, comprising:
when the display screen is controlled to work, the power supply end of the display screen and an external power supply are communicated through the conductive column;
when the display screen is controlled to be not operated, the power supply end of the display screen and an external power supply are disconnected through the conductive column.
3. The wall-mounted LED display device of claim 1, wherein the driving chip controls the operating state of the display screen by controlling connectivity of the conductive posts, comprising:
when the brightness change of the display screen is controlled, the control is completed by controlling the conduction degree of the conductive column and an external power supply.
4. The wall-mounted LED display device of claim 1, wherein dynamically changing the pixel density of the LED display device by controlling the driving chip according to the picture content to be displayed by the image signal comprises:
acquiring the image signal;
converting the image signal to obtain transmission image information, wherein the transmission image information comprises the transmitted image information and frame rate information;
and respectively controlling the driving chip of each display box body based on the transmission image information.
5. The wall-mounted LED display device of claim 4, wherein the driving chip for controlling each of the display cases based on the transmission image information, respectively, comprises:
analyzing the image information to obtain pixel distribution conditions, wherein the pixel distribution conditions comprise the number of the display screens continuously displaying the same content;
comparing the number of the display screens with a first threshold; and when the power supply is larger than the first threshold value, turning off the power supply of the first number of display screens.
6. The wall-mounted LED display device of claim 4 or 5, wherein the driving chip for controlling each of the display cases based on the transmission image information, respectively, comprises:
analyzing the frame rate information to obtain a frame rate of the content to be displayed;
comparing the frame rate to a second threshold; and when the power supply is smaller than the second threshold value, turning off the power supply of the second number of display screens.
7. The wall-mounted LED display device of claim 5, wherein,
the first number is half the number of display screens displaying the same content consecutively.
8. The wall-mounted LED display device of claim 6, wherein,
the second number is a preset number selected inwards from the edge part of the LED display device.
9. A wall-mounted LED display method, characterized in that display is performed by using the wall-mounted LED display device according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311139658.6A CN116884341B (en) | 2023-09-06 | 2023-09-06 | Wall-mounted LED display device and method |
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| CN202311139658.6A CN116884341B (en) | 2023-09-06 | 2023-09-06 | Wall-mounted LED display device and method |
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