KR20090099024A - Method and apparatus for creating image source for led channel display board - Google Patents

Abstract

A method and an apparatus for creating an image source for an LED channel display board are provided to improve a visual effect by supplying a low quality image data to an LED channel display board. In a method and an apparatus for creating an image source for an LED channel display board, a source file is input(403). Data are extracted from the source file based on the channel display panel information corresponding to the LED channel display panel(405). The image source is produced based on the extracted data(407), and the generated image source is transmitted to the LED channel display panel(409).

Description

Method and apparatus for generating image source for LED channel display board {Method and apparatus for creating image source for LED channel display board}

The present invention relates to a method and apparatus for generating an image source for an LED channel sign.

LED (Light Emitting Diode) refers to a light emitting diode that emits light and emits light of various colors such as red, green, blue, and yellow, and is used as an electronic display panel for various electronic products and instrument panels. . By arranging a plurality of LEDs, an electric signboard may be implemented in such a manner that all or some of the LEDs are turned on.

In general, the electronic signboard is a system for displaying various types of information in a visible state, and is widely used for commercial advertisement, stadium, multivision, traffic signal, and information or message transmission. Although light bulbs were primarily used for signboards with built-in lighting, fluorescent lamps have been mainly used in consideration of the amount of electric power used by bulbs. However, in the case of a light bulb or a fluorescent lamp, there is a limit to reducing the size, which is inadequate for representing an image. For this reason, in recent years, CRT (cathode ray tube) and the like are used, but due to the limitation of the enlargement of the size, the electric signboard composed of LED is becoming popular.

Currently, these LED signboards are modular, and each module consists of 16 rows of pixels arranged horizontally and vertically. The LED pixel module refers to a basic unit that can change color by using one or more LEDs in one pixel unit. The pixel may be classified into various types according to the shape and size of the LED. The pixel may be classified into a red-green (RG) pixel and a red-green-blue (RGB) pixel according to the number of LEDs to be combined. That is, the full-color LED composed of RGB, which constitutes one pixel module as the minimum unit that can be individually controlled, is composed of one or more 3in1 RGB Surface Mount Device (SMD) lamps.

The method of controlling the color of the full-color LED pixel basically composed of RGB is widely used in the LED display. However, unlike general LED signboards that are controlled using modules standardized over the entire surface, there is a problem that individual control of each LED pixel in the LED channel signboard is difficult. The channel signboard is a kind of signboard which is manufactured by molding only a letter shape or a specific logo shape with metal or the like.

In order to control a general LED signboard, a personal computer (PC) is usually used as a controller. However, in the case of an LED channel signboard, it is generally designed to a minimum hardware specification for cost reduction or the like. Since the microcontroller for controlling the LED channel signboard does not have enough specification to use an operating system (OS) and video compression codec, the video source input to the conventional LED channel signboard is basically used by a general microcontroller. Must be an image source in the uncompressed AVI format being processed. However, since the uncompressed AVI format video source has a very large capacity, the large capacity of such a video source becomes a serious problem from the standpoint of a microcontroller for LED channel billboards, which has only limited storage space.

Accordingly, an object of the present invention is to solve the above problems.

A specific object of the present invention is to provide a method and apparatus for generating an image source for an LED channel billboard that can provide a low-capacity image source to the LED channel billboard.

Another object of the present invention is to provide a method and apparatus for generating an image source for an LED channel display board, which can realize a more colorful visual effect, without leaving uniform color or whole color change at the same time.

It is still another object of the present invention to provide a method and apparatus for generating an image source for an LED channel display board to which a pixel module which can maximize the efficiency of heat dissipation and heat dissipation is applied.

In order to achieve the above object, according to an aspect of the present invention, in the method for generating an image source for the LED channel display board for providing the image source to the LED channel display board for performing the image source generating device for LED channel display board, the source file Receiving an input, extracting data from the source file based on channel information corresponding to the LED channel display, generating an image source based on the extracted data, and generating the image source from the LED A method of generating an image source for an LED channel billboard may include providing the channel billboard.

According to another aspect of the present invention, in the method for generating an image source for the LED channel display board for providing an image source to the LED channel display board for performing the image source generating device for the LED channel display, receiving a source file, the user from the Receiving user selection information corresponding to an LED channel display board; extracting data from the source file based on user selection information; generating an image source based on the extracted data; and generating the generated image source. It may provide a method for generating an image source for the LED channel billboard comprising the step of transmitting to the LED channel billboard.

In a preferred embodiment, the channel billboard information is pixel position information corresponding to the LED channel billboard. The user selection information may be pixel position information corresponding to the LED channel board. The extracted data may be a pixel value corresponding to the pixel position information in the source file. The LED channel display board may include a microcontroller for converting the image source into an electrical signal, a plurality of pixel modules for outputting light according to the received electrical signal after receiving the electrical signal from the microcontroller, and a plurality of microcontrollers. It characterized in that it comprises a switch mode power supply for providing an operating power to the pixel module of the. In addition, each of the plurality of pixel modules is waterproof molded by silicon, characterized in that the aluminum heat radiation pad is attached.

According to another aspect of the present invention, in the image source generating device for an LED channel display board providing an image source to the LED channel display board, means for receiving a raw file, based on the channel display information corresponding to the LED channel display board Means for extracting data from the source file, means for generating an image source based on the extracted data, and means for transmitting the generated image source to the LED channel billboard. Can be provided.

According to another aspect of the present invention, in the image source generating device for the LED channel display board for providing an image source to the LED channel display board, means for receiving a source file, input user selection information corresponding to the LED channel display board from the user Means for receiving, means for extracting data from the source file based on user selection information, means for generating an image source based on the extracted data, and means for transmitting the generated image source to the LED channel billboard. It is possible to provide an image source generating device for an LED channel board.

According to still another aspect of the present invention, an image source generating apparatus for an LED channel billboard that provides an image source to an LED channel billboard includes a memory in which a program is stored and a processor coupled to the memory to execute the program. The processor receives a source file by the program, extracts data from the source file based on channel information corresponding to the LED channel board, and generates an image source based on the extracted data. The present invention can provide an image source generating device for an LED channel billboard, wherein the generated image source is transmitted to the LED channel billboard.

According to still another aspect of the present invention, an image source generating apparatus for an LED channel billboard that provides an image source to an LED channel billboard includes a memory in which a program is stored and a processor coupled to the memory to execute the program. The processor receives the source file by the program, receives user selection information corresponding to the LED channel board from a user, extracts data from the source file based on user selection information, and extracts the extracted file. An image source generating apparatus for generating an LED channel may be provided based on data and transmitting the generated image source to the LED channel billboard.

According to another aspect of the present invention, as a program for performing the above-described method for generating an image source for an LED channel display board, a recording medium having recorded thereon a program that can be read and executed by a digital signal processing apparatus can be provided.

According to the present invention, the following effects can be expected.

According to the present invention, it is possible to provide a method and apparatus for generating an image source for an LED channel billboard that can provide a low-capacity image source to the LED channel billboard.

In addition, according to the present invention, it is possible to provide a method and apparatus for generating an image source for an LED channel display board, which can realize a more colorful visual effect, without discoloring a uniform single color or the whole.

In addition, according to the present invention, it is possible to provide a method and apparatus for generating an image source for an LED channel display board to which a pixel module that can maximize efficiency of heat dissipation and heat dissipation is applied.

Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing the configuration of an LED channel sign and an image source generating device for an LED channel sign according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an image source generating device 101 for an LED channel signboard generates an image source having a reduced capacity compared to a source file based on the information of the LED channel signboard, and transmits the image source to the LED channel signboard 103.

The LED channel sign 103 includes a microcontroller 105, a plurality of pixel modules 107, and a switching mode power supply (SMPS) 109. The micro-controller 105 converts the low-capacity image source received from the image source generation device 101 for the LED channel display board into an electrical signal and transmits it to the pixel module 107. Each pixel module 107 incorporates a constant current IC that controls to display colors of R, G, and B by changing frequency intervals in a constant current state based on an electrical signal received from the microcontroller 105. Since the plurality of pixel modules 107 are connected and controlled in series, the constant current IC installed in each pixel module 107 to control the color of the pixel adopts a PWM type constant current IC to facilitate data transmission. It allows for the serial connection of many pixel modules. The switched mode power supply 109 supplies operating power for the microcontroller 105 and the plurality of pixel modules 107.

2 is a view showing the configuration of an image source generating device for LED channel display board according to a preferred embodiment of the present invention.

Referring to FIG. 2, an image source generating apparatus for an LED channel display board may include a memory system 250, at least one central processing unit (CPU) 260 connected to the memory system 250, and a high speed operation. 270 and communication device 280.

The central processing unit 260 is a controller for controlling the operation of an Arithmetic Logic Unit (ALU) 262 for performing calculations, a register 264 for temporary storage of data and instructions, and an image source generating device for LED channel billboards. (266). The central processing unit 260 includes Digital, Alpha, MIPS Technology, NPS, NEC, IDT, Siemens, etc. MIPS, Intel and Cyrix, AMD, and Nexgen. It could be a processor with a variety of architectures, such as the company's x86 and IBM's and Powerola's PowerPC. The memory system 250 generally includes a high speed main memory 252, which is a storage medium such as random access memory (RAM) and read only memory (ROM), and a floppy disk, hard disk, tape, CD-ROM, flash memory, or the like. Auxiliary memory 254 in the form of a long-term storage medium and a device for storing data using electrical, magnetic, optical or other storage media. In addition, the main memory 252 may include a video display memory for displaying an image through the display device.

In addition, the input device 270 may include a keyboard, a mouse, for example, a physical transducer such as a touch screen or a microphone. The communication device 280 may be a device such as a network interface for performing communication with the LED channel billboard.

3 is a view showing a module configuration of an image source generating device for LED channel display board according to a preferred embodiment of the present invention.

Referring to FIG. 3, the image source generating apparatus for the LED channel display board includes a transmission / reception processing module 362 for processing communication with the LED channel display board, and constant data from a raw file based on the LED channel display information such as pixel position information. And a data source generation module 366 for generating an image source based on the data extracted by the data extraction module 364 and the data extraction module 364.

Looking at the overall configuration of the image source generating device for LED channel signage through these application modules as follows.

The image source generator for the LED channel display board can use various operating systems (OS) as the OS of the system. The OS provides a high level command to an application program interface (302) to control the operation of each application module 360.

The image source generation device for the LED channel billboard is a high level command processor that identifies each corresponding application module 360 according to a high level command provided from the API 302, decodes the high level command, and provides the same to a corresponding place. 304. The application module controller 350 controls the operation of the application module 360 according to the command provided from the high level command processor 304. That is, the high level instruction processing unit 304 identifies whether there is an application module 360 corresponding thereto according to the high level instruction provided through the API 302, and corresponds to the case where the corresponding application module 360 exists. Decoded by a command recognized by the application module 360 to be transmitted to the corresponding mapping unit or to control the transmission of the message. Accordingly, the application module controller 350 may include a mapping unit 351, 353, 355, and an interface unit 352, 354, 356 for the transmission / reception processing module 362, the data extraction module 364, and the image source generation module 366. Each).

The transmit / receive processing module mapping unit 351 receives a high level command for performing communication with the LED channel display board from the high level command processing unit 304 and maps it to a device level that can be processed by the transmit / receive processing module 362. Then, it is provided to the transmission and reception processing module 362 through the transmission and reception processing module interface unit 352.

The data extraction module mapping unit 353 and the data extraction module interface unit 354 are parts for extracting constant data from a source file based on LED channel billboard information such as pixel position information. That is, the data extraction module mapping unit 353 receives a high level command for using the data extraction module 364 from the high level command processing unit 304 and maps it to a device level command, and the data extraction module interface unit ( 354 is provided to the data extraction module 364.

The image source generation module 366 is a part for generating an image source based on the data extracted by the data extraction module 364. The image source generation module mapping unit 355 receives the high level command applied through the high level command processing unit 304 and maps it to a device level command that can be recognized by the image source generation module 366. The device level command is provided to the image source generation module 366 through the image source generation module interface 356.

4 is a flowchart illustrating a method of generating an image source for an LED channel display board according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the image source generating apparatus for the LED channel signboard receives the channel signboard information through an internal input device (step 401). The channel sign information includes the shape of the LED channel sign, the number of pixels, location information of the pixels, and the like. The LED channel billboard is shown by way of example in FIG. 9. In the case of the LED channel sign 901 shown in FIG. 9, the channel sign information may be information about the number and position of pixels corresponding to the shape of 'LED'.

In addition, the image source generating device for the LED channel display board receives a raw file such as an image, a video to be displayed on the LED channel display board through an internal input device (step 403). Raw files, such as images and videos, are illustrated by way of example in FIG. 6. The raw file 601 shown in FIG. 6 represents a single frame of an image or video. Here, the image source generating device for the LED channel display board may convert the source file into a general program such as a flash.

Thereafter, the image source generating apparatus for the LED channel signboard extracts data based on the channel sign information for each frame in the case of an image or a video (step 405). The process of extracting data will be described in more detail with reference to FIG. 7. Referring to FIG. 7, the apparatus for generating an image source for an LED channel signboard extracts only pixel values corresponding to channel sign information (see 'LED' shape) corresponding to the LED channel signboard 901 illustrated in FIG. 9. In other words, only the pixel values of the numbered pixels corresponding to 'LED' are extracted from the source file. Through this process, data optimized for the LED channel signboard, which is significantly reduced in capacity compared to the raw file, is extracted.

Thereafter, the image source generating apparatus for the LED channel signboard generates an image source based on the extracted data (step 407). If the source file is a single image file, as shown in Fig. 7, the extracted data itself will be the image source. However, when the raw file is a moving picture, an image source may be generated by integrating the extracted data for a single frame as shown in FIG. 7.

Thereafter, the image source generating apparatus for the LED channel billboard transmits the generated image source to the LED channel billboard (step 409). The user may transmit the generated image source to the LED channel billboard through the interface 801 illustrated in FIG. 8. The generated image source is not only significantly reduced in capacity compared to the raw file, but also optimized for the LED channel billboard, and thus can be efficiently applied to the low level hardware of the LED channel billboard.

5 is a flowchart illustrating a method of generating an image source for an LED channel billboard according to another exemplary embodiment of the present invention.

Referring to FIG. 5, the image source generating apparatus for the LED channel display board receives a raw file such as an image or a video to be displayed on the LED channel display board through an internal input device (step 501). Raw files, such as images and videos, are illustrated by way of example in FIG. 6. The raw file 601 shown in FIG. 6 represents a single frame of an image or video. Here, the image source generating device for the LED channel display board may convert the source file into a general program such as a flash.

Thereafter, the image source generation device for the LED channel display board receives user selection information for selecting the shape of the LED channel display board by the user through an internal input device. The user selection information, like the channel billboard information, may indicate the shape of the LED channel billboard, the number of pixels, location information of the pixels, and the like.

Thereafter, the image source generation apparatus for the LED channel signboard extracts data based on the user selection information for each frame in the case of an image or a video (step 505). The process of extracting data will be described in more detail with reference to FIG. 7. Referring to FIG. 7, the image source generating apparatus for the LED channel signboard extracts only pixel values corresponding to user selection information (see 'LED' shape) corresponding to the LED channel signboard 901 illustrated in FIG. 9. In other words, only the pixel values of the numbered pixels corresponding to 'LED' are extracted from the source file. Through this process, data optimized for the LED channel signboard, which is significantly reduced in capacity compared to the raw file, is extracted.

Thereafter, the image source generating apparatus for the LED channel signboard generates an image source based on the extracted data (step 507). If the source file is a single image file, as shown in Fig. 7, the extracted data itself will be the image source. However, when the raw file is a moving picture, an image source may be generated by merging the extracted data for a single frame as shown in FIG. 7.

Thereafter, the image source generating apparatus for the LED channel billboard transmits the generated image source to the LED channel billboard (step 509). The user may transmit the generated image source to the LED channel billboard through the interface 801 illustrated in FIG. 8. The generated image source is not only significantly reduced in capacity compared to the raw file, but also optimized for the LED channel billboard, and thus can be efficiently applied to the low level hardware of the LED channel billboard.

10 is a diagram illustrating pixels of an LED channel display board according to a preferred embodiment of the present invention.

Referring to FIG. 10, the pixel of the LED channel display board according to the present invention may be manufactured by adding waterproof pads made of aluminum after waterproof molding with silicon. Therefore, the LED channel board according to the present invention can maximize the efficiency of heat dissipation and heat dissipation.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

1 is a view schematically showing the configuration of an LED channel sign and an image source generating device for an LED channel sign in accordance with a preferred embodiment of the present invention.

2 is a view showing the configuration of an image source generating device for an LED channel billboard according to a preferred embodiment of the present invention.

3 is a view showing a module configuration of an image source generating device for LED channel display board according to a preferred embodiment of the present invention.

4 is a flowchart illustrating a method of generating an image source for an LED channel display board according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating a method of generating an image source for an LED channel billboard according to another exemplary embodiment of the present invention.

6 is an exemplary view showing a source file according to a preferred embodiment of the present invention.

7 is a diagram schematically illustrating a process of extracting data according to a preferred embodiment of the present invention.

8 illustratively illustrates a user interface in accordance with a preferred embodiment of the present invention.

9 is an exemplary view showing an LED channel board according to a preferred embodiment of the present invention.

10 is a diagram illustrating pixels of an LED channel billboard according to a preferred embodiment of the present invention.

Claims (12)

A method of generating an image source for an LED channel display board for providing an image source to an LED channel display board, which is performed in an image source generating device for an LED channel display board, Receiving a source file; Extracting data from the source file based on channel billboard information corresponding to the LED channel billboard; Generating an image source based on the extracted data; And Transmitting the generated image source to the LED channel billboard. Image source generation method for the LED channel billboard. A method of generating an image source for an LED channel display board for providing an image source to an LED channel display board, which is performed in an image source generating device for an LED channel display board, Receiving a source file; Receiving user selection information corresponding to the LED channel billboard from a user; Extracting data from the source file based on user selection information; Generating an image source based on the extracted data; And Transmitting the generated image source to the LED channel billboard. Image source generation method for the LED channel billboard. The method of claim 1, And the channel billboard information is pixel position information corresponding to the LED channel billboard. The method of claim 2, And the user selection information is pixel position information corresponding to the LED channel billboard. The method according to claim 3 or 4, And the extracted data is a pixel value corresponding to the pixel position information in the source file. The method according to claim 1 or 2, The LED channel billboard A microcontroller for converting the image source into an electrical signal; A plurality of pixel modules which display light according to the received electrical signal after receiving the electrical signal from the microcontroller; And The microcontroller, a switch mode power supply for providing operating power to a plurality of pixel modules Method for generating a video source for LED channel billboard, characterized in that it comprises a. The method of claim 6, Each of the plurality of pixel modules is waterproof-molded by silicon, and an aluminum heat dissipation pad is attached. An image source generating device for an LED channel billboard that provides an image source to an LED channel billboard, Means for receiving a source file; Means for extracting data from the source file based on channel billboard information corresponding to the LED channel billboard; Means for generating an image source based on the extracted data; And Means for transmitting the generated image source to the LED channel billboard Image source generation device for an LED channel billboard. An image source generating device for an LED channel billboard that provides an image source to an LED channel billboard, Means for receiving a source file; Means for receiving user selection information corresponding to the LED channel billboard from a user; Means for extracting data from the source file based on user selection information; Means for generating an image source based on the extracted data; And Means for transmitting the generated image source to the LED channel billboard Image source generation device for an LED channel billboard. An image source generating device for an LED channel billboard that provides an image source to an LED channel billboard, A memory in which a program is stored; A processor coupled to the memory to execute the program Including but not limited to: The processor by the program, Receiving a raw file, extracting data from the raw file based on the channel sign information corresponding to the LED channel sign, generating an image source based on the extracted data, and converting the generated image source into the LED. An image source generating device for an LED channel billboard, characterized in that transmitted to the channel billboard. An image source generating device for an LED channel billboard that provides an image source to an LED channel billboard, A memory in which a program is stored; A processor coupled to the memory to execute the program Including but not limited to: The processor by the program, Receiving a raw file, receiving user selection information corresponding to the LED channel billboard from a user, extracting data from the raw file based on user selection information, and generating an image source based on the extracted data; And transmitting the generated image source to the LED channel billboard. A recording medium having recorded thereon a program which can be read and executed by a digital signal processing apparatus as a program for performing the method of any one of claims 1 to 7.

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