led显示屏逐点校正的几个认识误区分析（Analysis of several misunderstandings in point by point correction of LED display）.docVIP

led显示屏逐点校正的几个认识误区分析（Analysis of several misunderstandings in point by point correction of LED display） Analysis of several misunderstandings in point by point correction of LED display 8-12 LED large screen network With the fierce competition in the market, the quality of display display is becoming more and more important to the industry. Point by point correction has been accepted by many high-end manufacturers as a routine process. It has also been incorporated into the tender by the screen bidding unit. However, for the point by point correction conditions, implementation, application areas and follow-up maintenance, and so on, there are still a wide range of misunderstandings and vague concepts. The following concepts are clarified and discussed for some common misunderstandings. Myth 1: point by point calibration requires the use of dedicated drive chips As long as the control system is supported, a general-purpose driver chip can also be implemented by point by point correction! Error two: point by point correction is done by the control system manufacturer, and the correction technique is tied to the control system The real necessary conditions for point by point correction are the following three points: 1 、 high precision, high efficiency lamp point brightness acquisition equipment 2, can achieve point by point correction of the control system 3, the above two data docking Point by point correction can be divided into two steps: 1, accurately measure the brightness of each lamp / chip, and obtain the correction factor by point. 2, the correction factor data is fed back to the control system to achieve precise drive control by point. Point by point drive control has long been realized, and the general control systems on the market have this function. But with millions of light point data collected, some control system vendors developed tools that are not compatible with other systems. As a result, point by point correction and control system are bundled, in