WO2012083868A1 - Procédé et système de surveillance d'un écran d'affichage à del, et affichage à del - Google Patents

Procédé et système de surveillance d'un écran d'affichage à del, et affichage à del Download PDF

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Publication number
WO2012083868A1
WO2012083868A1 PCT/CN2011/084446 CN2011084446W WO2012083868A1 WO 2012083868 A1 WO2012083868 A1 WO 2012083868A1 CN 2011084446 W CN2011084446 W CN 2011084446W WO 2012083868 A1 WO2012083868 A1 WO 2012083868A1
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WO
WIPO (PCT)
Prior art keywords
led
parameter data
abnormal data
led lamp
controller
Prior art date
Application number
PCT/CN2011/084446
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English (en)
Chinese (zh)
Inventor
卢长军
潘彤
Original Assignee
利亚德光电股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 利亚德光电股份有限公司 filed Critical 利亚德光电股份有限公司
Publication of WO2012083868A1 publication Critical patent/WO2012083868A1/fr

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Classifications

    • 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]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel

Definitions

  • the invention relates to the field of electrical appliances, and in particular to a method, system and LED display for monitoring an LED display screen.
  • BACKGROUND OF THE INVENTION At present, the existing technologies at home and abroad are mainly single point calibration methods, which mainly refer to: sampling each LED lamp through an optical device, recording it in a fixed position of the display body, and then passing each LED lamp through a dynamic algorithm. The brightness and chromaticity are adjusted to be consistent, so that the display of the LED display can be substantially improved.
  • the above method corrects the chromaticity of the LEDs by a single point brightness chromaticity correction, so that the chromaticity deviation range of each LED is less than ⁇ 3%, and the human eye can no longer detect the deviation range, thereby ensuring the color uniformity of the LED display screen and eliminating the chrominance brightness. Uneven mosaic phenomenon. However, this is only in the initial stage of the LED display. When the LED display is calibrated by the single-point calibration method, the LED display is used. At present, the prior art cannot control each pixel of the display, and it is impossible to identify and Monitoring, which brings troubles for maintenance and replacement in the future, and seriously increases maintenance costs.
  • the main object of the present invention is to provide a monitoring method, system and LED display for an LED display screen, which can solve the above-mentioned related art and cannot identify and monitor each LED light of the LED display in operation, resulting in an increase in products.
  • a method for monitoring an LED display screen comprising: detecting the operation of one or more LED lamps in an LED display screen during operation of the LED display screen Status, to obtain parameter data of the LED lamp; generate an abnormal data report according to the parameter data, and send the abnormal data report to the controller; the controller adjusts the parameter data of the LED lamp or issues an alarm prompt according to the abnormal data report.
  • the parameter data of the LED lamp includes: brightness, chromaticity, contrast, grain attenuation, and working time of the LED lamp.
  • generating the abnormal data report according to the parameter data includes: determining whether the deviation value of the parameter data is within a predetermined range; and when the deviation value of the parameter data is out of the predetermined range, saving the parameter data to the abnormal data report. Further, the controller adjusts the parameter data of the LED light according to the abnormal data report, including: acquiring brightness, chromaticity and contrast of the LED light in the abnormal data report; determining one of three parameters of brightness, chromaticity and contrast of the LED light Or whether the plurality of parameters exceed the first threshold, and if the first threshold is exceeded, the one or more parameters are adjusted to within a predetermined range.
  • the controller sends an alarm prompt according to the abnormal data report, including: obtaining a crystal grain attenuation degree or a working time of the LED lamp in the abnormal data report; determining whether the crystal grain attenuation degree or the working time of the LED lamp exceeds a second threshold, wherein When the second threshold is exceeded, an alarm prompt is issued.
  • the LED module is detected in units, and each LED module is composed of a predetermined number of LEDs. Light composition.
  • a monitoring system for an LED display screen comprising: a display panel, one or more LED lights are disposed on the display panel; a single point identification device, and a display
  • the boards are connected in series, used to detect the working state of each LED light during the operation of the LED display screen, obtain the parameter data of the LED light by reading the interface to generate an abnormal data report, and send the abnormal data report to the controller
  • the controller is respectively connected in series with the display panel and the single point identification device for adjusting the parameter data of the LED lamp or issuing an alarm prompt according to the abnormal data report.
  • the single point identification device is built in the controller.
  • the parameter data of the LED lamp includes: brightness, chromaticity, contrast, grain attenuation, and working time of the LED lamp.
  • the single point identification device comprises: a single point detecting unit for acquiring parameter data of the LED lamp on the display panel; and a processing unit configured to analyze and determine whether the deviation value of the parameter data is within a predetermined range, when the parameter data has a deviation value If the parameter is out of the predetermined range, the parameter data is saved to the abnormal data report; the output unit sends the abnormal data report to the controller.
  • the controller includes: a reading unit configured to acquire brightness, chromaticity, and contrast of the LED light in the abnormal data report; and a control unit configured to determine three parameters of brightness, chromaticity, and contrast of the LED light Whether one or more parameters exceed a first threshold, and if the first threshold is exceeded, the one or more parameters are adjusted to within a predetermined range.
  • the LED display screen further includes: an alarm device, connected in series with the controller, for alarming the alarm device via the controller when the die brightness of the LED lamp in the abnormal data report or the working time exceeds the second threshold.
  • the single point identification device performs detection in units of LED modules, and each LED module is composed of a predetermined number of LED lamps.
  • the system may further include: a tracking device connected in series with each LED module, configured to acquire and save parameter data of all LED lamps on the LED module.
  • the present invention also provides an LED display comprising the monitoring system of any of the above LED display screens.
  • the controller adjusts the parameter data of the LED lamp or issues an alarm prompt according to the abnormal data report, and solves the problem that the related technology cannot identify and monitor each LED light of the working LED display, resulting in an increase in the product.
  • FIG. 1 is a schematic structural view of a monitoring system of an LED display screen according to an embodiment of the present invention
  • FIG. 2 is a flow chart of a monitoring method of an LED display screen according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of a monitoring system of an LED display screen according to an embodiment of the present invention.
  • the system comprises: a display panel 1, a single point identification device 2 and a controller 3, wherein one or more LED lights are arranged on the display panel 1; the single point identification device 2 is connected in series with the display panel 1.
  • the connection is used to detect the working state of one or more LED lights on the LED display during the operation of the LED display screen, and obtain the parameter data of the LED light through the reading interface of the single point identification device 2, and according to the parameter
  • the data is used to generate an abnormal data report, and the abnormal data report is sent to the controller 3; the controller 3 is connected in series with the display panel 1 and the single point identification device 2, respectively, for adjusting the parameter data of the LED light or issuing according to the abnormal data report.
  • Alarm prompt The parameter data of the LED lamp may include: brightness, chromaticity, contrast, grain attenuation and working time of the LED lamp.
  • a single point identification device 2 is added to the full color LED display screen, and the core of the device is the use of a single point correction technology to realize recognition of each pixel point (LED light) in the LED display screen.
  • the correction that is, using a single point identification device 2 in the LED display screen, after the LED display screen is running, the working condition of each pixel point can be recorded, and the working time and brightness state of each LED lamp can be read specifically. Grain attenuation, etc., and all data can be classified and stored.
  • the single point identification device 2 will Timely report the abnormal data to the display control system, and inform the control system of the pixel position coordinates. The maintenance personnel only need to periodically check the system report to understand the operation of the LED display and alarm the LED lights with serious problems. , prompt the staff to replace the LED light.
  • the single point identification device 2 in the above embodiment may be built in the controller 3 or external as a separate device.
  • the single point identification device 2 in the embodiment of the present invention may include: a single point detecting unit that acquires parameter data of the LED lamp on the display panel 1; and a processing unit configured to analyze and determine whether the deviation value of the parameter data is within a predetermined range, When the deviation value of the parameter data is out of the predetermined range, the parameter data is saved to the abnormal data report; the output unit transmits the abnormal data report to the controller 3.
  • the controller 3 may include: a reading unit configured to acquire brightness, chromaticity, and contrast of the LED light in the abnormal data report; and a control unit configured to determine three parameters of brightness, chromaticity, and contrast of the LED light Whether one or more of the parameters exceeds a first threshold, and if the first threshold is exceeded, the one or more parameters are adjusted to within a predetermined range.
  • the single point identification device 2 in the embodiment of the present invention can be detected in units of LED modules, and each LED module is composed of a predetermined number of LED lamps.
  • the system of the present invention may further include: a tracking device connected in series with each LED module for acquiring and storing parameter data of all LED lamps on the LED module.
  • the LED display screen of the present invention may further comprise: an alarm 4 connected in series with the controller 3, wherein the crystal grain attenuation or the working time of the LED lamp in the abnormal data report exceeds a threshold value (may be a monitoring method of the LED display screen) When the second threshold value is), the alarm 4 is triggered by the controller 3 to give an alarm. At this time, when the attenuation or working time of the LED lamp is too long, the LED lamp cannot be used normally, which affects the effect of the display screen. At this time, the alarm device 4 prompts the worker to replace the LED lamp, and adjusts the replaced LED lamp. The brightness, chromaticity and contrast data make the LED lamp consistent with the working state of the nearby LED lamp, and the user does not visually perceive the deviation when using it.
  • a threshold value may be a monitoring method of the LED display screen
  • Step S202 implementing the LED display screen by using the single point identification device 2 of FIG.
  • the single point identification device 2 generates an abnormal data report based on the parameter data, and transmits the abnormal data report to the controller 3.
  • the parameter data of the LED lamp can be adjusted according to the abnormal data report or the alarm prompt can be issued by the controller 3 in FIG.
  • the parameter data of the LED lamp may include: brightness, chromaticity, contrast, grain attenuation and working time of the LED lamp.
  • the single point identification device 2 is implemented in the full color LED display screen to realize the recognition and correction of each pixel in the LED display screen, and the LED display is performed.
  • the single point identification device 2 can record the operation of each pixel (LED lamp), including working time, brightness state, chromaticity state, contrast state or grain attenuation, and can perform all data.
  • Classified storage once a pixel in the LED display has a problem in brightness, chromaticity, or a certain pixel appears damaged, the single point identification device 2 will promptly report the abnormal data to the display control system, and will The pixel position coordinates are used to inform the control system, and the maintenance personnel only need to periodically check the system report to understand the operation of the LED display.
  • the step of generating the abnormal data report according to the parameter data may include: determining whether the deviation value of the parameter data is within a predetermined range, wherein, when the deviation value of the parameter data is within a predetermined range, not updating Abnormal data report, otherwise, save the parameter data to the exception data report.
  • the deviation value in this embodiment means that during the operation of the full-color LED display screen, the single-point identification device 2 determines whether the LED lamp is faulty by acquiring the difference between the parameter data and the initial value, that is, the deviation value. The data of the LED lamp is written into the abnormal data report, otherwise, the abnormal data report is not generated, or the report is empty.
  • the initial values of the individual LED lights in the LED display are saved to the single point identification device 2 by the start of operation of the LED display.
  • the controller 3 adjusts the parameter data of the LED lamp or issues an alarm prompt according to the abnormal data report, including: obtaining the brightness, chromaticity and contrast of the LED light in the abnormal data report; determining the brightness and color of the LED light Whether one or more of the three parameters of degree and contrast exceed a first threshold, wherein the one or more parameters are adjusted to within a predetermined predetermined range, otherwise, the original parameter setting of the LED lamp is maintained.
  • This embodiment realizes the correction and recording of parameters such as brightness, chromaticity and contrast of a single point on all pixels based on the initial state, and monitors the running state of the display screen at any time, when there is a problem in data such as brightness, chromaticity and contrast.
  • the staff only needs to check the records and repair and debug according to the location coordinates.
  • the step of the controller 3 in the above embodiment of the present invention for adjusting the parameter data of the LED lamp or issuing the alarm prompt according to the abnormal data report may further include: acquiring the grain attenuation degree or the working time of the LED lamp in the abnormal data report; It is determined whether the die attenuation or the working time of the LED lamp exceeds a second threshold, wherein when the second threshold is exceeded, an alarm prompt is issued.
  • This embodiment achieves replacement of the over-consumed LED lamp, so that the display effect of the display screen is better.
  • a predetermined number of LED lights can be divided to form an LED module, and the detection is performed.
  • the LED module can be detected in units, and each LED module is composed of a predetermined number of LED lights. Therefore, in a display screen of the LED module including the predetermined data, the state of all the pixels in the corresponding LED module can be activated from the running LED display through the modular tracking system, including brightness, current value, Color gamut attenuation, etc., and analysis and judgment based on the data, it is the maintenance personnel can understand the operation of each module in the display, whether the color is uniform or even, and the brightness is balanced; at the same time, when some modules have problems, Judging how to replace the new module, how to set the data of the new module can make the whole screen display clear and even.
  • the present invention also provides an LED display comprising the monitoring system of any of the LED displays of the above embodiments. From the above description, it can be seen that the present invention achieves the following technical effects:
  • the technology mainly uses a single point identification and monitoring technology to make the LED display screen intelligent. Each pixel in the LED display can be controlled.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Debugging And Monitoring (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Procédé et système de surveillance d'un écran d'affichage à DEL, et affichage à DEL. Le procédé comprend les opérations suivantes : pendant l'utilisation de l'écran d'affichage à DEL, détection des conditions de marche d'une ou de plusieurs lampes à DEL dans le but d'obtenir des données de paramètres des lampes à DEL; génération d'un rapport sur des données anormales et communication dudit rapport à une unité de commande; et réglage des données de paramètres pour les lampes à DEL ou envoi d'une incitation d'alarme conformément au rapport sur des données anormales au moyen de l'unité de commande. Cette invention permet d'améliorer l'efficacité du personnel dans le domaine de l'entretien et de réduire les frais d'entretien.
PCT/CN2011/084446 2010-12-22 2011-12-22 Procédé et système de surveillance d'un écran d'affichage à del, et affichage à del WO2012083868A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201010602088 CN102122483B (zh) 2010-12-22 2010-12-22 Led显示屏的监控方法、系统及led显示器
CN201010602088.6 2010-12-22

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WO2012083868A1 true WO2012083868A1 (fr) 2012-06-28

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CN104239185A (zh) * 2014-09-26 2014-12-24 深圳市奥拓电子股份有限公司 一种led显示屏的监控方法和装置
CN106325180A (zh) * 2015-06-19 2017-01-11 上海高清数字科技产业有限公司 终端运行参数监控系统及方法
CN106557391A (zh) * 2015-09-29 2017-04-05 中兴通讯股份有限公司 显示屏处理方法及装置
CN106782235B (zh) * 2016-11-30 2020-10-23 日立楼宇技术（广州）有限公司 显示屏异常的检测方法、装置和显示屏设备
TWI615062B (zh) * 2017-05-16 2018-02-11 廣達電腦股份有限公司 故障檢測裝置以及故障檢測方法
CN110220673A (zh) * 2018-03-02 2019-09-10 谱钜科技股份有限公司 光谱仪的光源量测监控方法及其系统
CN110910814A (zh) * 2018-08-28 2020-03-24 杭州海康威视数字技术股份有限公司 Led模组校正方法、装置、led显示屏及存储介质
CN111028719B (zh) * 2019-12-30 2021-11-09 深圳市洲明科技股份有限公司 灯板连接板和led显示屏
CN111862884A (zh) * 2020-07-23 2020-10-30 厦门强力巨彩光电科技有限公司 一种led显示屏无人自动校正系统和方法
CN112562580B (zh) * 2020-12-18 2022-11-25 上海谦奕电子科技有限公司 一种led展示屏控制方法及系统
CN113921663B (zh) * 2021-09-29 2023-03-24 东莞市中麒光电技术有限公司 一种led显示模块返修方法
CN114267289A (zh) * 2021-12-31 2022-04-01 深圳市中科创激光技术有限公司 一种灯具温度监控方法及其相关设备
CN116484269B (zh) * 2023-06-25 2023-09-01 深圳市彤兴电子有限公司 显示屏模组的参数处理方法、装置、设备及存储介质

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