KR102015644B1 - An image display system contained function for Automatic Transform Switch by high speed 2way - Google Patents

Abstract

The present invention relates to a video display system having an automatic transfer switching function by high-speed duplex paths, which is characterized by comprising: a video signal source; a MCU; an SCU; and an LED module. Therefore, the state of an electronic sign can be inspected from a remote distance and at a high speed by two ways.

Description

An image display system contained function for Automatic Transform Switch by high speed 2way}

The present invention relates to a video display system having an automatic switching switch function with high speed redundancy, and more specifically, to gamma correction, automatic dimming, and electronic display at a long distance through automatic switching of ATS in both directions by dividing into ITS and ATS in MCU. It is possible to check the brightness value and module defect of the display board, and to check the display panel at 2WAY high speed at a long distance to automatically adjust the contrast ratio of night and day, to control the temperature control and the driving of the display board required for image display calibration. The present invention relates to an image display system having an automatic changeover switch function at a high speed redundancy.

In addition, the present invention independently configures the ITS and the ATS in the MCU to receive the environment and state of the display module dots from the module power dection of the SCU without affecting the image driving of the DCU main controller to present the present expression at a long distance. The present invention relates to an image display system having an automatic switching switch function with a high-speed redundancy in which image flickering does not occur due to image display frame rate and bit change of image data by controlling ATS by driving ITS.

LED (Light Emitting Diode) refers to a light emitting diode that emits light, and is widely used in various electronic products and electronic display panels such as instrument panels in various colors such as red, green, blue, and yellow.

Among them, the LED signboard arranges a plurality of LEDs in a matrix form, and a plurality of LEDs arranged in a matrix form a pixel for displaying an image, thereby displaying an image. Such LED signboards are installed and used in various forms outside or inside the building for advertisement or delivery of various information.

In general, an LED display board displays an image by receiving an image signal from an AV device such as a video medium such as a DVD, a VCR, a broadcasting device, and converting the image signal into a signal suitable for the display board. Arranged in the form, information such as various characters and pictures is displayed.

LED signboard is a display device that has excellent resolution and realizes color images of various colors, and is used to implement images and videos by installing in various forms on the exterior wall or inside of a building for advertisement or broadcasting. The LED signboard is composed of unit pixels composed of LEDs (Light Emitting Diodes) emitting red, green, and blue colors, and the pixels are arranged in a horizontal and vertical matrix to form one LED panel or LED board. .

The LED signboard can supply data corresponding to each point of the image to the corresponding pixels in order to realize various colors by controlling the brightness of the red, green, and blue LEDs of the pixel, and to realize various colors of images throughout the LED signboard. have. Since the resolution of a screen that can be realized by a LED area with a constant area is determined by the number of pixels within a unit area, the smaller the size of the pixel, the higher the resolution of the LED display can be, but the size of the pixel is limited by processes and manufacturing techniques. There is a limit to reducing below a certain size.

In addition, due to the larger size of the LED signboard, if the entire LED signboard is composed of a single panel, not only manufacturing difficulties, but also because the entire panel must be replaced due to a failure of some circuits or LEDs, as shown in Figure 1 By arranging a plurality of panels, that is, a plurality of LED unit modules M adjacent to each other in the up, down, left and right directions, a method of configuring one LED display screen is widely used. For example, an LED unit module M composed of 8 × 8 pixels P or an LED unit module 110 composed of 16 × 16 pixels P are used to manufacture an actual LED display board.

Also, as shown in FIG. 2, the general electronic board is controlled by CLK and LATCH signals through constant current driving LED driving through a MCU (Main Controller Unit) and an SCU (Sub Controller Unit) as shown in the electronic board configuration. The on data is stored in the shift register of the LED constant current drive IC, and when the OE (Out Enable) output control signal is asserted, the image data is processed by the data input / output driving method that outputs the color LED according to each data.

On the other hand, when the LED module or LED lamp needs to be replaced due to the failure of the LED module or the LED lamp while the LED board is in use, the quick recognition of the LED lamp that needs to be defective or replaced at the site is limited. Is limited.

In this regard, the present applicant intends to provide a way to remotely monitor the status of a specific operating signboard and LED module and to check in real time a situation in which a defective LED and an LED module are required.

1.LED display board and driving method thereof (LED ELECTRIC LIGHTING BOARD AND ITS DRIVING METHOD) (Patent Registration No. 10-0992383) 2. Image data displaying method and dynamic type LED display board controller with improved refresh rate to reduce flicker phenomenon (Image data displaying method in dynamic type LED display board (Patent No. 10-1237950)

The present invention is to solve the above problems, it is possible to identify gamma correction, automatic dimming, the brightness of the signboard, module failure of the signboard at a distance through the ATS automatic switching operation in both directions divided into ITS and ATS in the MCU, night Equipped with automatic switching switch with high-speed redundancy to check the status of the signboard at 2WAY high speed at long distance to automatically adjust the contrast ratio of day and day, temperature control and drive the signboard necessary for image display calibration It is to provide a video display system.

In addition, the present invention independently configures the ITS and ATS in the MCU to receive the display module dot environment from the module power detection of the SCU without affecting the image driving of the DCU main controller to check the current expression from a long distance. The present invention provides a video display system having an automatic switching switch function with a high-speed redundancy in which image flickering does not occur due to a change in image display frame rate and bit of image data through ITS driving.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a video display system having an automatic switching switch function with a high speed redundancy according to an embodiment of the present invention is a source information for supplying a video signal to be displayed on an LED module, and includes DVD, HDMI, DP, or VCR. An apparatus for reproducing an image medium such as, or an image signal source for retrieving the image data stored in the memory to the LED module of the LED display; 8-bit to 12-bit color correction value and luminance balance brightness value required for electronic board operation control ATS automatic switching function by ITS timing to enable use of bit by means of dot check, power supply and driving control MCU which can check the module failure of the, and automatically adjusts the contrast ratio of the day and night, and operates to enable the electronic board drive interlocking control necessary for temperature control and image display calibration; ATS by ITS driving so that various environments of LED module dots applied from module power detection can be checked and current expressions can be checked at a long distance. SCU for receiving the status information of the corresponding LED module and the module dot according to the control and transmits to the MCU; And a unit display module formed by arranging a plurality of LEDs with n × m pixels to form a screen, and displaying grayscale values expressed according to RGB color values included in image data divided by unit display modules. Calculate the number of flashes matched to the grayscale by substituting the grayscale value calculated by receiving the automatic transfer signal of the ATS transmitted through the SCU for each section, into the grayscale table stored in advance. Or an LED module which transmits the status information of the module dots to check the defective module or the defective dot of the module.

In addition, the MCU of the image display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention to check the status and environment of the LED module dot from the module power detection of the SCU and to check the current expression from a long distance. Display control unit (DCU) to control ATS by ITS driving so that image flicker phenomenon that may occur due to image display frame rate and bit change of image data is possible, and according to the illumination signal of day or night according to the control signal of DCU Set the detected Flick frequency of the flicker and the adjusted integration time according to the input cycle according to the input period, and transmit the LED to the LED display board through the SCU, or independently according to the control signal of the DCU and the control signal required for image transmission. Receiving a control signal to drive the module in the display state of the LED module ITS (Integration Time Setting) for checking the original status to stop the video display operation even when remote control is required during operation of the display and displaying the status information of the display by remote remote control without the need for additional devices, and control of the DCU Switching at the point where the AC phase of the input power supply becomes zero according to the signal to suppress noise or surges, and to check whether there is a flicker phenomenon, image display boiling, or distortion of image quality remotely. Through switching switching, it is possible to check various environments of LED module dot from SCU's module power detection and to check the present expression at a long distance. Image display frame rate, various types of image flicker that may occur in bit change of image data, You can check the status of the defective module, and The ATS (Automatic Switch Transform) except for that the normal operation in the electronic board geometry controls the drive to the other module, characterized in that further comprising.

In addition, the ATS of the image display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention without any charging device even when the display of the display image through the LED module failure of the display board, module power state and temperature control signal It can check the current operation status from a long distance and it is equipped with the data conversion function of the combination controller, and it is driven by 2Way method so that the whole image display of the signboard is not disturbed when a certain part defect of the signboard module occurs. Equipped with ITS control function for remote confirmation according to status and bad check, real-time confirmation is possible even from remote distance, and the ITS (Integration Time Setting) is driven independently according to DCU control signal and control signal for video transmission Receive the control signal so that LED display board can be Check the module's display status and power status of the module to stop the video display operation even when remote control is required during the operation of the display, and to display the status information of the display by remote remote control without the need for charging device. The gray scale is increased for the clarity of the image display, so that the ITS is independently configured to display the flicker-free image signal even in the high quality image.

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According to an embodiment of the present invention, a video display system having an automatic switching switch function with a high speed redundancy is classified into ITS and ATS in the MCU of a billboard and bidirectionally corrects gamma correction, automatic dimming, and brightness of an electronic board through ATS automatic switching operation. It is possible to check the value and the module defect of the signboard, and to check the status of the signboard at 2WAY high speed at a long distance configured to automatically adjust the contrast ratio of night and day, and to control the signboard drive required for image display calibration. It can be effective.

In addition, the video display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention, by independently configuring the ITS and ATS in the MCU, without affecting the video driving of the DCU main controller, Receives the environment from the SCU's module power detection and checks the current expression from a long distance, and controls the ATS by ITS driving so that the flicker phenomenon does not occur due to the video frame rate and bit change of the image data. Can be guaranteed.

In addition, the image display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention, the ATS automatic switching function according to the ITS timing, the 8Bit ~ 12Bit color correction value and luminance balance brightness required for the display board drive control By using this module, the use bits can be used flexibly according to the dot check, power supply, and various drive control, so it is possible to check the module defect of the electronic signboard at a long distance, and to adjust the contrast ratio of night and day automatically. In addition, it is possible to interlock control of the electric sign driving required for temperature control and image display calibration.

In addition, the image display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention, complementary to the image drive control signal and the ITS control signal of the display board as a control function for efficient driving the UHD and It is possible to prevent the occurrence of traffic in the display drive control of the display board with the same high resolution image, and through the ATS, various control signals such as LED module failure, module power state and temperature of the display board can be prevented. Even when the image is displayed, the current operating status can be checked from a distance without any charging device.

In addition, the image display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention is equipped with a data conversion function of the combination controller, even if the failure of a specific part of the module of the signboard, It is operated in 2 way so as not to be disturbed, and the integration control function enables real-time confirmation of remote display according to the display module status of the display board and bad check.

In addition, the image display system having an automatic switching switch function with a high-speed redundancy according to an embodiment of the present invention, by configuring the ITS independently by increasing the grayscale for the clarity of the image display of ultra-high definition, such as UHD, even in high-definition image It is possible to display images without flicker, and to enable the automatic controller for various types of control signals for improving the performance of the display board, and it is possible to operate the display board more stably in the display of ultra-high definition images such as UHD.

1 is a state diagram showing the configuration of a unit display module of a general LED display
2 is a block diagram of a conventional general LED sign
3 is a cross-sectional view of an image display system having an automatic switching switch function with high speed redundancy according to the present invention.
Figure 4 is a detailed internal configuration of the image display system having an automatic switching switch function with a high speed redundancy according to the present invention
5 is a detailed configuration diagram of the ATS of the image display system having an automatic switching switch function with a high speed redundancy according to the present invention
6 is a detailed configuration diagram of the ITS of the image display system having an automatic switching switch function with a high speed redundancy according to the present invention
FIG. 7 is a cross-sectional view illustrating a bad check state of the LED display module of FIG. 3. FIG.
8 is a flowchart illustrating a driving procedure of an image display system having an automatic switching switch function with high speed redundancy according to the present invention.

Hereinafter, the detailed description of the preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

In the present specification, when one component 'transmits' data or a signal to another component, the component may directly transmit the data or signal to another component, and through at least one other component. This means that data or signals can be transmitted to other components.

3 is a cross-sectional view of an image display system having an automatic switching switch function with high speed redundancy according to the present invention. According to the present invention, a video display system having an automatic switching switch function with high speed redundancy is largely composed of a video signal source 100, an MCU 200, an SCU 300, and an LED module 400.

Hereinafter, the detailed configuration and operation of an image display system having an automatic switching switch function with high speed redundancy with reference to FIGS. 3 to 4 will be described. First, the image signal source 100 is an LED module 400 of an LED sign. As source information for supplying an image signal to be displayed on the device, a device for reproducing an image medium such as a DVD, HDMI, DP, or VCR, or a computer for reading image data stored in a memory and transmitting the image data to the LED module 400 of the LED display board. May be, but is not limited thereto.

The MCU 200 may match each color of the red, green, and blue colors according to 8 bits to 10 bits without changing the frame rate of the R, G, and B data transmissions with respect to the image signal transmitted from the image signal source 100. Circuit configuration necessary for gamma correction control, automatic dimming control, display brightness, display power failure, module failure and module dot defect for 8 ~ 12Bit remote display for ultra high quality R, G, B data display In order to prevent flicker due to image driving control, it is possible to control by bidirectional type with automatic switching function by dividing into ITS and ATS.

More specifically, the MCU 200 uses 8-bit to 12-bit color correction values and luminance balance brightness values required for the electronic board driving control to enable flexible use of the use bits through module bad dot check, power supply, and drive control. Through ATS automatic switching function, it is possible to check the module defect of the display board even at a long distance, and to automatically adjust the contrast ratio of night and day, and to operate the display board drive interlocking control necessary for temperature control and image display calibration.

The SCU 300 checks various environments of the LED module dot from module power detection and checks the present expression at a long distance so that the image flicker phenomenon that may occur in the image display frame rate and the bit change of the image data does not appear. The ATS by driving receives the state information of the corresponding LED module and the module dot according to the control to be transmitted to the MCU (200).

More specifically, the SCU (300) is generally in the operation of the display board display, when a particular LED module is defective, the corresponding module and the module in the same video drive bit on the same line is not expressed as a whole, but the ATS function of the MCU (200) It is configured separately and does not affect the overall display driving of the display board through the automatic switching function, and it operates normally even in the display display driving of other modules except the defective module.

The LED sign 400 is a unit display module consisting of a plurality of LEDs arranged in a matrix of n × m pixels in a matrix form to form a screen, according to the RGB color value included in the image data divided by unit display module Calculate the grayscale value to be displayed, and receives the automatic transfer signal of the ATS transmitted through the SCU 300 for each section, and substitutes the calculated grayscale value into the grayscale table stored in advance to match the grayscale. By calculating the number of times to transmit the status information of the LED module or module dot for each unit so that the bad dot of the bad module or module is confirmed.

In addition, the LED module 400 is a unit display module consisting of a plurality of LEDs arranged in a matrix of n × m pixels in a matrix form to form a screen, the pixel of the display board for the image signal input through the image input device Alternatively, luminance correction data is applied in consideration of the brightness of the brightness value to display the image data generated by correcting the luminance with respect to the image data input by synthesizing the image data stream with the luminance correction data in real time.

4 is a detailed internal configuration diagram of a video display system having an automatic switching switch function with a high speed redundancy according to the present invention. The MCU 200 includes a DCU 210, an ITS 220, an ATS 230, and a histogram. Equalization (240), the storage unit 250 and Modification Bright (260) is configured in detail. Looking at the configuration and operation, first, the display control unit (DCU) 210 is module power detection of the SCU (300) In order to check the status and environment of the LED module dot from 310 and to check the present expression from a long distance, the ATS by ITS driving is performed so that the image flicker phenomenon which may occur due to the image display frame rate and the bit change of the image data does not appear. To control.

The ITS (Integration Time Settinb) 220 sets the detected Flick frequency of the flicker generation and the adjusted integration time according to the input period according to the daytime or nighttime illumination according to the control signal of the DCU 210. To be transmitted to the LED sign 260 through the SCU (300).

The integration time setting (ITS) 220 is Receive the control signal to be driven independently according to the control signal of the DCU 210 and the control signal required to send the image to check the module, the power state of the display state of the LED module 400 even at a distance, remote control during the operation of the LED display When the display is required, the display board is stopped and the status information of the display board is displayed by remote control remotely without the need for additional equipment.

In addition, it is possible to express flicker-free image signal even in high-definition image by making ITS independently by increasing grayscale for the definition of ultra-high definition image display such as UHD, and various types of control signals for improving the performance of electronic display board. By enabling Auto Controller, it is possible to express ultra-high definition video signal such as UHD, which enables more stable display of electronic sign.

More specifically, the ITS 220 uses a low gray scale to provide a high quality display image of the flicker reduced through the dot output value and gray scale control of the LED module of the image output section through the auto flicker detection of the SCU 300. By adjusting the refresh rate, a frame frequency of a high output image is set to generate a flicker-free image. That is, the ITS 220 detects the Flick frequency by checking whether the integration time is an integer multiple of the period in which the integration time is input to the image generated by Auto Flicker Detection with respect to the image signal input according to the control signal of the DCU 210. In consideration of the setting cycle time transmitted by adjusting the time is transmitted to the LED display board module through the SCU (300) to express the corresponding video signal.

The ITS 220 detects a flicker frequency generated for whether the integration time is an integer multiple of the period inputted with respect to the uniform noise adjusted through the Histogram Equalization 230 and adjusts the integration time to transmit a setting period. Considering the time is transmitted to the LED display module module to display the image signal.

The automatic transform switch (ATS) 230 switches switching at a point where the AC phase of the input power becomes zero according to the control signal of the DCU 210 to suppress noise or surge generation. In order to check the flicker phenomenon, boiling of image display and distortion of image quality, it is possible to check various environments of LED module dots through module power detection of SCU through switching switching, and to check the current display from a distance. Various types of image flicker, which can occur due to the display frame rate, bit change of image data, and the status of the defective module can be checked, and the normal operation is performed even in the display operation of the display board to other modules except the defective module of the LED module.

FIG. 5 illustrates a detailed configuration of an ATS of an image display system having an automatic switching switch function at a high speed redundancy according to the present invention. Referring to the operation of the ATS 230, the ATS 230 is a defective LED module of a display board and a module power state. And other control signals, such as temperature, to display the current operating state from a distance without any charging device even when displaying an electric sign image.

In addition, it is equipped with the data conversion function of the combination controller, so that when there is a failure of a specific part of the display board, it is driven in 2 way so that it does not interfere with the whole image display of the display board. Equipped with ITS 220 control function to enable real-time confirmation from a remote remote.

That is, the ATS 230 complements the image driving control signal and the ITS control signal of the LED display board for efficient driving and generates traffic in the display driving control of the display board having a high resolution image such as UHD of the display board. Automatic transfer function to prevent possible problems in advance.

Accordingly, the ATS 230 is an 8-bit to 12-bit color correction value and a luminance balance brightness value required for the electronic board driving control. By operating ATS automatic switching function based on the timing, it is possible to check the module defect of the display board even at a long distance, and to automatically adjust the contrast ratio of the night and day, and to control the temperature display and other display display drive. It is possible to monitor with remote High Speed 2way.

6 is a view illustrating an operation state of the ITS of the image display system having an automatic switching switch function with a high speed redundancy according to the present invention. Referring to FIGS. 3 to 5, operation of the ITS is shown. ) 220 receives the control signal to be driven independently according to the control signal and the control signal required for image transmission of the DCU (210) to check the module, the power state of the display state of the LED module 400 in the far distance When the remote control is required during the operation of the display board, the image display is stopped and the status information of the display board is displayed by remote control remotely without the need for charging device.

In addition, it is possible to express flicker-free image signal even in high-definition image by making ITS independently by increasing grayscale for the definition of ultra-high definition image display such as UHD, and various types of control signals for improving the performance of electronic display board. By enabling Auto Controller, it is possible to express ultra-high definition video signal such as UHD, which enables more stable display of electronic sign.

The ITS (Integration Time Settinb) 220 sets the detected Flick frequency of the flicker generation and the adjusted integration time according to the input period of day or night illumination according to the control signal of the DCU 210. To be transmitted to the LED sign 260 through the SCU (300).

More specifically, the ITS 220 uses a low gray scale to provide a high quality display image of the flicker reduced through the dot output value and gray scale control of the LED module of the image output section through the auto flicker detection of the SCU 300. By adjusting the refresh rate, a frame frequency of a high output image is set to generate a flicker-free image. That is, the ITS 220 detects the Flick frequency by checking whether the integration time is an integer multiple of the period in which the integration time is input to the image generated by Auto Flicker Detection with respect to the image signal input according to the control signal of the DCU 210. In consideration of the setting cycle time transmitted by adjusting the time is transmitted to the LED display board module through the SCU (300) to express the corresponding video signal.

The ITS 220 detects a flicker frequency generated for whether the integration time is an integer multiple of the period inputted with respect to the uniform noise adjusted through the Histogram Equalization 230 and adjusts the integration time to transmit a setting period. Considering the time is transmitted to the LED display module module to display the image signal.

FIG. 7 is a cross-sectional view illustrating a bad check state of the LED display module according to FIG. 3. Referring to the operation, the SCU 300 checks various environments of the LED module dots from module power detection and displays the current expressions. The MCU (200) receives the state information of the corresponding LED module and the module dot under the control of the ATS by ITS driving so that the video flicker phenomenon that may occur due to the image display frame rate and the bit change of the image data does not appear so as to be checked at a long distance. To be sent to.

More specifically, the SCU (300) is generally in the operation of the display board display, when a particular LED module is defective, the corresponding module and the module in the same video drive bit on the same line is not expressed as a whole, but the ATS function of the MCU (200) It is configured so that the automatic switching function does not affect the overall display driving of the display board, and it is operated to operate normally even in the display display display of other modules except the defective module.

Therefore, ITS and ATS are configured separately to enable active and efficient control of the image control of the display board, so that it does not affect the driving of the image of the DCU main controller and checks various environments of the display module dots from the module power detection of the SCU. The ATS by ITS driving is used to check the present expression from a distance so that various types of image flickers that may occur due to the image display frame rate and the bit change of the image data do not appear.

8 is a flowchart illustrating a driving procedure of an image display system having an automatic switching switch function at a high speed redundancy, and referring to the attached FIGS. 3 to 8, a procedure of checking whether a LED module is defective is described. When the MCU 200 receives the bad module check request signal of the LED module 400 through the Module Array Transform 340 of the SCU 300, the check of the bad module is performed by the LED module 400 according to the transmitted signal. The module transmits the details to the module power detection 330 by checking whether the defective module or the module dot is defective. At this time, the result data for the defective module or the module dot transmitted from the module power detection 330 is collected and transmitted to the operating program of the MCU 200.

In addition, when the MCU 200 transmits the module power check request signal through the SCU 300, the module 200 transmits the check request signal of the module power to the LED module 400 through the Module Transform 340, and transmits the signal to the corresponding transmitted signal. Accordingly, the power of the module is checked by the LED module 400, and as a result, the check result data of the module power collected through the SCU 300 is transmitted to the operation program of the MCU 200.

As described above, the present specification and drawings have been described with respect to preferred embodiments of the present invention, although specific terms are used, it is only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

100: video signal source
200: MCU (Main Control Unit)
210: DCU (Display Control Unit)
220: ITS
230: ATS
240: Histogram Equalization
300: SCU (Sub Control Unit)
310: integration Time Setting
320: Auto Flicker Detection
330: Module Power Detection
340: Module Array Tranform
400: LED Module

Claims (4)

As source information for supplying an image signal to be displayed on the LED module 400, a device for reproducing an image medium such as a DVD, HDMI, DP, or VCR, or an LED module 400 of an LED display board by importing image data stored in a memory. Image signal source 100 to transmit to;
8-bit to 12-bit color correction value and luminance balance brightness value required for electronic board driving control ATS (Automatic Transform) by ITS (Integration Time Setting) timing to enable flexible use of bit by dot check, power supply, and drive control Automatic switching function enables the check of module defects on the display board even at a long distance, automatically adjusts the contrast ratio of day and night, and operates the LED board interlocking control required for temperature control and image display calibration. 200);
ATS by ITS driving so that various environments of LED module dots applied from module power detection can be checked and current expressions can be checked at a long distance. SCU (300) for receiving the state information of the LED module and the module dot according to the control and transmits to the MCU (200); And
Unit display module consisting of a plurality of LEDs arranged with n × m pixels is arranged in a matrix to form a screen, and the gray scale value expressed according to RGB color values included in the image data divided by the unit display modules is calculated. In addition, by substituting the grayscale value calculated by receiving the automatic transfer signal of the ATS transmitted through the SCU 300 for each section into a prestored grayscale table, the number of flashes matched with the grayscale is calculated, and for each unit. Image display system having an automatic switching switch function with a high-speed redundancy characterized in that it comprises a ;; LED module 400 to transmit the status information of the LED module or module dot to check the bad dot of the bad module or module .
The method of claim 1,
The MCU 200
Ultra-high definition R, G, B of UHD according to 8Bit ~ 10Bit for each color of Red, Green, Blue without changing the frame rate of R, G, B data transmission with respect to the video signal transmitted from the video signal source 100 For data display, the flicker phenomenon according to the video drive control with the circuit configuration necessary for gamma correction control, automatic dimming control, display brightness, display power failure, module failure and module dot failure to enable remote remote control from 8bit to 12bit. In order to avoid this, it is divided into ITS and ATS and driven to be controlled in both directions through automatic switching,
The SCU (300) is generally in the operation of the display board display, when a particular LED module failure, the corresponding module and the module in the video drive bit on the same line is not expressed as a whole, but ATS of MCU 200 is configured separately, automatic switching This function does not affect the overall display driving of the display board and sends the corresponding signal to operate normally even in the display display driving of other modules except the defective module.
The LED module 400
The unit display module, in which a plurality of LEDs are arranged with n × m pixels, is arranged in a matrix to form a screen, and the luminance is considered in consideration of the luminance of the pixel or brightness value of the display board with respect to the image signal input through the image signal source. The image having the automatic switching switch function with high speed redundancy, characterized by displaying the image data generated by correcting the luminance with respect to the image data input through the synthesis of the image data stream and the luminance correction data in real time by applying the correction data. Display system.
The method of claim 1,
The MCU 200
From the module power detection 310 of the SCU 300, the image flicker phenomenon that may occur in the image display frame rate and the bit change of the image data may be confirmed to check the status and environment of the LED module dots and to check the current expression from a distance. DCU (Display control unit) 210 to control the ATS by driving the ITS so that it does not appear,
According to the control signal of the DCU 210 according to the input period according to the illumination of day or night, the detected Flick frequency of flicker generation and the adjusted integration time are set to the LED module 400 through the SCU 300. ) Or receive the control signal to be driven independently according to the control signal of the DCU (210) and the control signal required for image transmission to check the module, power state of the display state of the LED panel 400 in the far distance. ITS (Integration Time Setting) 220 to stop the display of the video display operation even when remote control is required during operation of the display board and to display the status information of the display panel by remote remote control without the need for additional devices.
Switching at the point where the AC phase of the input power is zero according to the control signal of the DCU 210 to suppress the generation of noise or surge to remotely flicker phenomenon, image display boiling, image distortion In order to check whether or not the phenomenon occurs, it is possible to check the various conditions of the LED module dots from the module power detection of the SCU through the switching switching, and to check the present expression at a long distance. It is possible to check the status of the various types of image flicker phenomenon, bad module, and further comprises an ATS (Automatic Transform Switch) 230 for normal operation even in the display of the display board other than the bad module of the LED module High-speed redundancy characterized in that the automatic switching switch function Display system.
The method of claim 3, wherein
The ATS 230 is
The LED module of the LED board, the module power status and temperature control signals can be used to check the current operation status from a remote location without any charging device even when displaying the LED screen image.It is equipped with the data conversion function of the combination controller. It is driven by 2Way method so that the entire image display of the display board is not disturbed when a certain part defect occurs, and it is equipped with the ITS (220) control function for remote confirmation according to the display module status of the display board, and the defect check in real time from a remote distance. Is possible,
The ITS (Integration Time Setting) 220 receives the control signal to be driven independently according to the control signal and the control signal necessary for image transmission of the DCU 210, the module in the display state of the LED panel 400 in the far distance, Check the power status to stop the video display even when remote control is required during the operation of the display board, and to display the status information of the display board by remote remote control without the need for charging device, and for the definition of ultra-high definition image display of UHD. An image display system having an automatic switching switch function with a high speed redundancy characterized in that the gray scale is increased to independently configure the ITS to display a flicker-free video signal even in a high quality image.

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