WO2021208389A1 - 自动修缝装置、led显示屏及其自动修缝方法 - Google Patents

自动修缝装置、led显示屏及其自动修缝方法 Download PDF

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Publication number
WO2021208389A1
WO2021208389A1 PCT/CN2020/122117 CN2020122117W WO2021208389A1 WO 2021208389 A1 WO2021208389 A1 WO 2021208389A1 CN 2020122117 W CN2020122117 W CN 2020122117W WO 2021208389 A1 WO2021208389 A1 WO 2021208389A1
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led display
seam
display screen
automatic
module
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PCT/CN2020/122117
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English (en)
French (fr)
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沈娜娜
廖加成
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深圳市洲明科技股份有限公司
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Publication of WO2021208389A1 publication Critical patent/WO2021208389A1/zh

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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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • 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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • 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
    • 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]

Definitions

  • This application relates to the technical field of LED display assembly, in particular to an automatic sewing device, an LED display and an automatic sewing method thereof.
  • LED display screens are usually formed by splicing multiple LED display modules, and during the splicing process, the installation tightness between two adjacent LED display modules is different, which will cause the splicing of adjacent LED display modules.
  • the unevenness of the LED lamp beads at the edge of the splicing place makes the distance between the LED lamp beads at the edge of the splicing place inconsistent, and eventually leads to bright or dark lines at the seam, which affects the display effect of the LED display. Therefore, the LED display needs to be automatically assembled after each assembly is completed. Tailoring treatment.
  • the existing automatic sewing process is mainly based on the camera, that is, after the LED lamp bead spacing at the edge of the splicing is obtained by taking a photo with the camera, the brightness correction coefficient is calculated and the corresponding brightness correction is performed to complete the automatic sewing operation of the LED display. .
  • this camera-based automatic seam repair method has various shortcomings.
  • the present application provides an automatic seam trimming device.
  • the automatic seam trimming device includes an LED display screen controller and a plurality of bright and dark line correction components electrically connected to the LED display screen controller, and the plurality of bright and dark lines are corrected.
  • the components are arranged in a one-to-one correspondence with the several modules in the LED display;
  • the bright and dark line correction component includes a correction coefficient processing module, a range sensor electrically connected to the correction coefficient processing module, and a distance measuring sensor electrically connected to the correction coefficient processing module.
  • the application also provides an LED display screen, which includes the above-mentioned automatic seam trimming device.
  • the present application also provides an automatic sewing method applied to the above-mentioned LED display screen, characterized in that the automatic sewing method includes the following steps: receiving the brightness correction coefficient fed back from each of the bright and dark line correction components According to the brightness correction coefficient and the average brightness of the LED lamp beads in the LED display screen, brightness correction is performed on the LED lamp beads on both sides of the corresponding gap between the modules to eliminate each of the modules The bright and dark lines formed by the stitching complete the automatic sewing operation of the LED display screen.
  • Figure 1 is a structural block diagram of an automatic sewing device according to an embodiment of the application.
  • FIG 2 is a schematic diagram of the installation structure of the automatic sewing device shown in Figure 1;
  • Fig. 3 is a flow chart of the automatic seam repairing method according to the third embodiment of the application.
  • Fig. 4 is a flow chart of the method for acquiring the brightness correction coefficient in the automatic seam trimming method shown in Fig. 3.
  • the first embodiment of the present application provides an automatic sewing device 100.
  • the automatic sewing device 100 includes an LED display controller 110 and a plurality of bright and dark line correction components 120 electrically connected to the LED display controller 110, respectively.
  • a number of bright and dark line correction components 120 are arranged in a one-to-one correspondence with a number of inter-module seams 20 in the LED display screen.
  • the bright and dark line correction component 120 includes a correction coefficient processing module 121, a distance measuring sensor 122 electrically connected to the correction coefficient processing module 121, and a positioning post 123 arranged opposite to the distance measuring sensor 122.
  • the distance measuring sensor 122 is located on the central axis of a corresponding one of the LED lamp beads 21 arranged adjacent to the corresponding inter-module seam 20, and the positioning column 123 is located on the corresponding other LED lamp bead arranged adjacent to the corresponding inter-module seam 20 On the central axis of 21, and the connection line between the ranging sensor 122 and the positioning column 123 and the corresponding inter-module joint 20 intersect perpendicularly to each other.
  • the LED display is mainly formed by splicing several LED display modules, and the several LED display modules are arranged in a matrix. Therefore, the above-mentioned inter-module joints include two adjacent LEDs that are laterally adjacent to each other. A first seam formed between the display modules and a second seam formed between two longitudinally adjacent LED display modules.
  • both the distance measuring sensor 122 and the positioning column 123 are arranged on the back side of the LED display module, as shown in FIG. 2 specifically, the distance measuring sensor 122
  • the positioning pillars 123 are respectively fixed on the back sides of the LED display modules on the left and right sides of the corresponding first seam.
  • the distance measuring sensor 122 and the positioning column 123 are respectively fixed on the back side of the LED display module on the upper and lower sides of the corresponding second seam.
  • the positioning column 123 is a prism body, and the center axis of the corresponding LED lamp bead 21 is located on the surface of the prism body on the side where the distance measuring sensor 122 is located.
  • the center axis of the other corresponding lamp bead 21 is located on the side surface where the probe of the distance measuring sensor 122 is located. In this way, it can be ensured that the distance between the distance measuring sensor 122 and the prism is exactly equal to the corresponding inter-module assembly.
  • the signal from the probe of the ranging sensor 122 detects the edge of the positioning column 123.
  • the signal reflected by the positioning column 123 accurately measures the distance from the edge of the positioning column 123 to the probe of the distance measuring sensor 123, which is the distance between the LED lamp beads on both sides of the corresponding inter-module joint 20.
  • the corresponding correction coefficient processing module 121 can calculate the corresponding brightness correction coefficient based on the spacing distance value, and feed it back to the LED display controller 110 to correct the LED lamp beads on both sides of the corresponding inter-module seam 20 Perform brightness correction to eliminate the bright and dark lines formed by the seam 20 between each module, and complete the automatic sewing operation of the LED display.
  • the aforementioned electrical connection between the LED display controller 110 and each bright and dark line correction component 120 is specifically a signal connection, which can be realized through a wireless network communication method or a wired network communication method.
  • the second embodiment of the present application provides an LED display screen.
  • the LED display screen includes the automatic sewing device 100 in the first embodiment and a plurality of LED display modules.
  • a module is formed between two adjacent LED display modules.
  • the inter-module seams 20 are arranged correspondingly to a bright and dark line correction component 120.
  • the present application also provides an automatic sewing method, which includes the following steps:
  • Step S110 Receive the brightness correction coefficient fed back from each bright and dark line correction component.
  • the automatic sewing method in the embodiment of the present application is mainly applied to the LED display screen of the second embodiment.
  • the LED display screen includes an automatic sewing device 100 and a number of LED display modules.
  • the automatic seam trimming device 100 includes an LED display controller 110 and a number of bright and dark line correction components 120.
  • a pair of adjacent LED display modules forms a seam 20 between modules, and a seam 20 between each module is formed between two adjacent LED display modules.
  • Corresponding to a bright and dark line correction component 120 is provided.
  • Each bright and dark line correction component 120 includes a correction coefficient processing module 121, a distance measuring sensor 122 electrically connected to the correction coefficient processing module 121, and a positioning column 123 disposed opposite to the distance measuring sensor 122.
  • the distance measuring sensor 122 is located on the central axis of a corresponding one of the LED lamp beads 21 arranged adjacent to the corresponding inter-module seam 20, and the positioning column 123 is located on the corresponding other LED lamp bead arranged adjacent to the corresponding inter-module seam 20 21 on the central axis. And the connection line between the ranging sensor 122 and the positioning column 123 and the corresponding inter-module joint 20 intersect perpendicularly to each other.
  • each bright and dark line correction component 120 can feed back the brightness correction coefficient corresponding to the corresponding inter-module seam 20 to the LED display controller 110.
  • the method for acquiring the brightness correction coefficient specifically includes the following steps:
  • Step S11 Obtain the distance value of the LED lamp beads on both sides of the corresponding inter-module seam through the ranging sensor.
  • Step S12 According to the preset correction function and the distance value of the interval, a brightness correction coefficient is calculated.
  • the signal from the probe of the ranging sensor 122 detects the edge of the positioning column 123.
  • the signal reflected by the positioning column 123 accurately measures the distance from the edge of the positioning column 123 to the probe of the distance measuring sensor 123, that is, the distance between the LED lamp beads on both sides of the corresponding inter-module joint 20.
  • the corresponding correction coefficient processing module 121 can calculate the corresponding brightness correction coefficient based on the spacing distance value and the preset correction function, and feed it back to the LED display controller 110.
  • the step “receive the brightness correction coefficients fed back by each bright and dark line correction component” it also includes: pre-calibrating the brightness of each LED display module in the LED display screen to ensure that any two LED display modules The brightness of the LED lamp beads inside is the same, and the average brightness of the LED lamp beads in the LED display screen is obtained. That is, before assembling the LED display screen of this embodiment, the brightness of each LED display module in the LED display screen needs to be calibrated in advance to ensure that the brightness of the LED lamp beads 21 in any two LED display screen modules is the same. At the same time, the average brightness of the LED lamp beads 21 in the LED display screen is obtained, so as to be used as a reference for brightness correction in the subsequent steps.
  • Step S120 According to the brightness correction coefficient and the average brightness of the LED lamp beads in the LED display, the brightness of the LED lamp beads on both sides of the corresponding inter-module seam is corrected to eliminate the brightness formed by each inter-module seam. Dark line, complete the automatic trimming operation of the LED display.
  • the brightness correction coefficients and the average brightness of the LED lamp beads 21 in the LED display screen can be used to match the LEDs on both sides of the corresponding gap 20 between the modules.
  • the lamp beads 21 perform brightness correction to eliminate the bright and dark lines formed by the seams 20 between each module, and complete the automatic sewing operation of the LED display screen.
  • the automatic trimming device, the LED display screen and the automatic trimming method provided by the embodiments of the present application include an LED display controller and a number of bright and dark line correction components, and a number of bright and dark line correction components and the LED display screen
  • the bright and dark line correction component includes a correction coefficient processing module, a distance measuring sensor and a positioning column.
  • the distance measuring sensor is located on the central axis of an LED lamp bead adjacent to the seam between the corresponding modules.
  • the positioning column is located on the central axis of another LED lamp bead arranged adjacent to the corresponding inter-module seam, and the connection line between the ranging sensor and the positioning column and the corresponding inter-module seam intersect perpendicularly to each other.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种自动修缝装置(100)、LED显示屏及其自动修缝方法，属于LED显示屏装配技术领域。该自动修缝装置(100)包括LED显示屏控制器(110)以及若干亮暗线校正组件(120)，若干亮暗线校正组件(120)与LED显示屏中的若干模组间拼缝(20)一一对应设置；亮暗线校正组件(120)包括校正系数处理模块(121)、与校正系数处理模块(121)进行电性连接的测距传感器(122)以及与测距传感器(122)相对设置的定位柱(123)，测距传感器(122)位于邻近相应的模组间拼缝(20)设置的一LED灯珠(21)的中心轴上，定位柱(123)位于邻近相应的模组间拼缝(20)设置的另一LED灯珠(21)的中心轴上，且测距传感器(122)与定位柱(123)之间的连线与相应的模组间拼缝(20)相互垂直相交。

Description

自动修缝装置、LED显示屏及其自动修缝方法
相关申请的交叉引用
本申请要求于2020年4月13日提交的中国专利局的申请号为202010287237.8、名称为“自动修缝装置、LED显示屏及其自动修缝方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及LED显示屏装配技术领域，特别涉及一种自动修缝装置、LED显示屏及其自动修缝方法。
背景技术
LED显示屏通常是由多个LED显示模组拼接而成，而在拼接过程中两个相邻的LED显示模组之间的安装松紧程度不同，会使得相邻的LED显示模组之间拼接处不均匀，进而使得拼接处边缘的LED灯珠间距不一致，最终导致接缝处出现亮线或暗线，影响LED显示屏的显示效果，因而，LED显示屏在每次拼装完成后需进行一次自动修缝处理。现有的自动修缝处理主要基于相机来完成，即通过相机拍摄照片获得拼接处边缘的LED灯珠间距后，计算亮度校正系数并进行相应的亮度校正，以完成LED显示屏的自动修缝操作。然而，在实际应用过程中，我们发现，这种基于相机的自动修缝方法存在种种不足。
发明内容
本申请提供了一种自动修缝装置，所述自动修缝装置包括LED显示屏控制器以及分别与所述LED显示屏控制器进行电性连接的若干亮暗线校正组件，所述若干亮暗线校正组件与LED显示屏中的若干模组间拼缝一一对应设置；所述亮暗线校正组件包括校正系数处理模块、与所述校正系数处理模块进行电性连接的测距传感器以及与所述测距传感器相对设置的定位柱，所述测距传感器位于邻近相应 的所述模组间拼缝设置的一LED灯珠的中心轴上，所述定位柱位于邻近相应的所述模组间拼缝设置的另一LED灯珠的中心轴上，且所述测距传感器与所述定位柱之间的连线与相应的所述模组间拼缝相互垂直相交。
本申请还提供了一种LED显示屏，所述LED显示屏包括上述的自动修缝装置。
本申请还提供了一种自动修缝方法，应用于上述的LED显示屏中，其特征在于，所述自动修缝方法包括以下步骤：接收每一所述亮暗线校正组件反馈回来的亮度校正系数；根据所述亮度校正系数与所述LED显示屏内LED灯珠的平均亮度，对相应的所述模组间拼缝两侧的LED灯珠进行亮度校正，以消除每一所述模组间拼缝形成的亮暗线，完成所述LED显示屏的自动修缝操作。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例一自动修缝装置的结构框图；
图2为图1所示自动修缝装置的安装结构示意图；
图3为本申请实施例三自动修缝方法的流程框图；
图4为图3所示自动修缝方法中亮度校正系数的获取方法的流程框图。
具体实施方式
下面结合附图对本申请的具体实施方式作进一步说明。在此需要说明的是，对于这些实施方式的说明用于帮助理解本申请，但并不构成对本申请的限定。此外，下面所描述的本申请各个实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互组合。
实施例一
如图1及图2所示，本申请实施例一提供了一种自动修缝装置100。该自动 修缝装置100包括LED显示屏控制器110以及分别与LED显示屏控制器110进行电性连接的若干亮暗线校正组件120。若干亮暗线校正组件120与LED显示屏中的若干条模组间拼缝20一一对应设置。亮暗线校正组件120包括校正系数处理模块121、与校正系数处理模块121进行电性连接的测距传感器122以及与测距传感器122相对设置的定位柱123。测距传感器122位于邻近相应的模组间拼缝20设置的对应的一个LED灯珠21的中心轴上，定位柱123位于邻近相应的模组间拼缝20设置的对应的另一个LED灯珠21的中心轴上，且测距传感器122与定位柱123之间的连线与相应的模组间拼缝20相互垂直相交。
在本实施例中，LED显示屏主要通过若干LED显示模组拼接而成，且若干LED显示模组呈矩阵排列分布，因而，上述提到的模组间拼缝包括两两横向相邻的LED显示模组之间形成的第一拼缝以及两两纵向相邻的LED显示模组之间形成的第二拼缝。为避免测距传感器122与定位柱123影响LED显示模组的正常显示，测距传感器122与定位柱123均设置在LED显示模组的背侧，具体为如图2所示，测距传感器122与定位柱123分别固设于相应的第一拼缝左右两侧的LED显示模组的背侧。或测距传感器122与定位柱123分别固设于相应的第二拼缝上下两侧的LED显示模组的背侧。在该实施例中，定位柱123为棱柱体，且相应的LED灯珠21的中心轴位于棱柱体正对测距传感器122所在的一侧表面上。同时，另一个相应灯珠21的中心轴位于测距传感器122探头所在的一侧表面上，这样一来，便可确保测距传感器122与棱柱体之间的间距正好等于相应的模组间拼缝20两侧LED灯珠的间隔距离值。工作时，测距传感器122通电后，测距传感器122的探头发出的信号探测到定位柱123的边缘。通过定位柱123反射回来的信号精确地测出定位柱123的边缘到测距传感器123的探头的距离，即为相应的模组间拼缝20两侧LED灯珠的间隔距离值。此时，相应的校正系数处理模块121便可基于该间距距离值计算相应的亮度校正系数，并反馈给LED显示屏控制器110，以对相应的模组间拼缝20两侧的LED灯珠进行亮度校正，消除每一模组间拼缝20形成的亮暗线，完成LED显示屏的自动修缝操作。
另外，上述提到的LED显示屏控制器110与每一亮暗线校正组件120之间的电性连接具体为信号连接，可通过无线网络通信方式或有线网络通信方式实现。
实施例二
本申请实施例二提供了一种LED显示屏，该LED显示屏包括实施例一中的自动修缝装置100与若干LED显示模组，两两相邻的LED显示模组之间形成一模组间拼缝20，每一条模组间拼缝20与一个亮暗线校正组件120对应设置。
实施例三
如图3所示，本申请还提供了一种自动修缝方法，该自动修缝方法包括以下步骤：
步骤S110：接收每一亮暗线校正组件反馈回来的亮度校正系数。
具体地，本申请实施例中的自动修缝方法主要应用于上述实施例二的LED显示屏中，如图1及图2所示，该LED显示屏包括自动修缝装置100与若干LED显示模组，自动修缝装置100包括LED显示屏控制器110以及若干亮暗线校正组件120，两两相邻的LED显示模组之间形成一条模组间拼缝20，每一条模组间拼缝20与一个亮暗线校正组件120对应设置。每一个亮暗线校正组件120包括校正系数处理模块121、与校正系数处理模块121进行电性连接的测距传感器122以及与测距传感器122相对设置的定位柱123。测距传感器122位于邻近相应的模组间拼缝20设置的对应的一个LED灯珠21的中心轴上，定位柱123位于邻近相应的模组间拼缝20设置的对应的另一个LED灯珠21的中心轴上。且测距传感器122与定位柱123之间的连线与相应的模组间拼缝20相互垂直相交。
工作时，每一个亮暗线校正组件120可向LED显示屏控制器110反馈回相应的模组间拼缝20对应的亮度校正系数。如图4所示，该亮度校正系数的获取方法具体包括以下步骤：
步骤S11：通过测距传感器获取相应的模组间拼缝两侧的LED灯珠的间隔距离值。
步骤S12：根据预设校正函数与该间隔距离值，计算得到亮度校正系数。
如图2所示，测距传感器122通电后，测距传感器122的探头发出的信号探测到定位柱123的边缘。通过定位柱123反射回来的信号精确地测出定位柱123的边缘到测距传感器123的探头的距离，即为相应的模组间拼缝20两侧的LED灯珠的间隔距离值。此时，相应的校正系数处理模块121便可基于该间距距离值与预设校正函数计算得到相应的亮度校正系数，并反馈给LED显示屏控制器110。
该预设校正函数为y＝1+(x/d-1)/2，其中，x为间隔距离值，d为LED显示屏的LED显示模组内的LED灯珠间距，y为亮度校正系数。
另外，为确保本LED显示屏在组装后出现亮线或者暗线的原因仅在于LED显示屏模组的安装松紧程度不同，而导致相邻两个LED显示屏模组之间接缝处的宽度不同。因而，在执行步骤“接收每一个亮暗线校正组件反馈回来的亮度校正系数”之前，还包括：预先对LED显示屏内的每一个LED显示模组进行亮度校正，确保任意两个LED显示模组内的LED灯珠亮度相同，并获取LED显示屏内LED灯珠的平均亮度。即本实施例的LED显示屏在组装前，需预先对LED显示屏内的每一个LED显示模组进行亮度校正，以确保任意两个LED显示屏模组内的LED灯珠21亮度相同。同时，获取LED显示屏内LED灯珠21的平均亮度，以便作为后续步骤中亮度校正的基准。
步骤S120：根据该亮度校正系数与LED显示屏内LED灯珠的平均亮度，对相应的模组间拼缝两侧的LED灯珠进行亮度校正，以消除每一条模组间拼缝形成的亮暗线，完成LED显示屏的自动修缝操作。
具体地，当通过上一方法步骤得到多个亮度校正系数后，便可根据该亮度校正系数与LED显示屏内LED灯珠21的平均亮度，对相应的模组间拼缝20两侧的LED灯珠21进行亮度校正，以消除每一条模组间拼缝20形成的亮暗线，完成LED显示屏的自动修缝操作。
本申请实施例提供的自动修缝装置、LED显示屏及其自动修缝方法，其自动修缝装置包括LED显示屏控制器以及若干亮暗线校正组件，若干亮暗线校正组件与LED显示屏中的若干模组间拼缝一一对应设置；亮暗线校正组件包括校正系数处理模块、测距传感器以及定位柱，测距传感器位于邻近相应的模组间拼缝设置的一个LED灯珠的中心轴上，定位柱位于邻近相应的模组间拼缝设置的另一个LED灯珠的中心轴上，且测距传感器与定位柱之间的连线与相应的模组间拼缝相互垂直相交。当设置了该自动修缝装置的LED显示屏拼装完成需进行自动修缝操作时，只需通过测距传感器测量相应的模组间拼缝两侧LED灯珠的间隔距离值，便可基于该间距距离值计算相应的亮度校正系数并反馈给LED显示屏控制器，以对相应的模组间拼缝两侧的LED灯珠进行亮度校正，消除每一模组间拼缝形成的 亮暗线，完成LED显示屏的自动修缝操作。整个操作过程不会受到阳光、灰尘、雨雪、雾霾等影响，且无需点亮LED显示及人为操作，便可自动完成修缝过程，并可以达到较好的修缝效果。可见，本技术方案，其可有效解决现有基于相机的自动修缝方法存在的种种不足。
以上结合附图对本申请的实施方式作了详细说明，但本申请不限于所描述的实施方式。对于本领域的技术人员而言，在不脱离本申请原理和精神的情况下，对这些实施方式进行多种变化、修改、替换和变型，仍落入本申请的保护范围内。

Claims (15)

  1. 一种自动修缝装置，其特征在于，所述自动修缝装置包括LED显示屏控制器以及分别与所述LED显示屏控制器进行电性连接的若干亮暗线校正组件，所述若干亮暗线校正组件与LED显示屏中的若干模组间拼缝一一对应设置；所述亮暗线校正组件包括校正系数处理模块、与所述校正系数处理模块进行电性连接的测距传感器以及与所述测距传感器相对设置的定位柱，所述测距传感器位于邻近相应的所述模组间拼缝设置的一个LED灯珠的中心轴上，所述定位柱位于邻近相应的所述模组间拼缝设置的另一个LED灯珠的中心轴上，且所述测距传感器与所述定位柱之间的连线与相应的所述模组间拼缝相互垂直相交。
  2. 根据权利要求1所述的自动修缝装置，其特征在于，所述模组间拼缝包括两两横向相邻的LED显示模组之间形成的第一拼缝以及两两纵向相邻的LED显示模组之间形成的第二拼缝。
  3. 根据权利要求2所述的自动修缝装置，其特征在于，所述测距传感器与所述定位柱分别位于所述LED显示模组的背侧。
  4. 根据权利要求3所述的自动修缝装置，其特征在于，所述测距传感器与所述定位柱分别固设于相应的所述第一拼缝左右两侧的所述LED显示模组的背侧。
  5. 根据权利要求3所述的自动修缝装置，其特征在于，所述测距传感器与所述定位柱分别固设于相应的所述第二拼缝上下两侧的所述LED显示模组的背侧。
  6. 根据权利要求1所述的自动修缝装置，其特征在于，所述定位柱为棱柱体，且相应的所述LED灯珠的中心轴位于所述棱柱体正对所述测距传感器所在的一侧表面上。
  7. 根据权利要求1所述的自动修缝装置，其特征在于，相应的所述LED灯珠的中心轴位于所述测距传感器的探头所在的一侧表面上。
  8. 根据权利要求1所述的自动修缝装置，其特征在于，所述电性连接为信号连接。
  9. 根据权利要求8所述的自动修缝装置，其特征在于，所述信号连接可通 过无线网络通信方式或有线网络通信方式实现。
  10. 一种LED显示屏，其特征在于，所述LED显示屏包括如权利要求1-7任一项所述的自动修缝装置。
  11. 根据权利要求10所述的LED显示屏，其特征在于，所述LED显示屏还包括若干LED显示模组，两两相邻的所述LED显示模组之间形成一条所述模组间拼缝，每一条所述模组间拼缝与一个所述亮暗线校正组件对应设置。
  12. 一种自动修缝方法，应用于如权利要求8或9所述的LED显示屏中，其特征在于，所述自动修缝方法包括以下步骤：
    接收每一个所述亮暗线校正组件反馈回来的亮度校正系数；
    根据所述亮度校正系数与所述LED显示屏内LED灯珠的平均亮度，对相应的所述模组间拼缝两侧的LED灯珠进行亮度校正。
  13. 根据权利要求12所述的自动修缝方法，其特征在于，所述亮度校正系数的获取方法包括以下步骤：
    通过所述测距传感器获取相应的所述模组间拼缝两侧的LED灯珠的间隔距离值；
    根据预设校正函数与所述间隔距离值，计算得到所述亮度校正系数。
  14. 根据权利要求13所述的自动修缝方法，其特征在于，所述预设校正函数为y＝1+(x/d-1)/2，其中，x为所述间隔距离值，d为所述LED显示屏的LED显示模组内的LED灯珠间距，y为所述亮度校正系数。
  15. 根据权利要求12所述的自动修缝方法，其特征在于，所述接收每一所述亮暗线校正组件反馈回来的亮度校正系数的步骤之前，还包括：
    预先对所述LED显示屏内的每一个LED显示模组进行亮度校正，确保任意两个所述LED显示模组内的LED灯珠亮度相同，并获取所述LED显示屏内LED灯珠的平均亮度。
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