Full-color LED display cabinet correction technology application_full-color LED display manufacturer

Full-color LED display cabinet correction technology application_full-color LED display manufacturer|Huaze Optoelectronics

by:XY Screens     2021-09-22
Full-color LED display cabinet calibration can greatly improve the display quality of the spliced u200bu200bdisplay screen, and it is more efficient than on-site calibration, and is not limited by time and venue, and the cost is also low. Therefore, the cabinet calibration technology will become an indispensable part of the full-color LED display manufacturing process and has a good application prospect. According to different applications, the point-by-point calibration technology can be divided into two types: one is the box-by-box calibration on the production line (box calibration); the other is the on-site large-screen calibration (on-site calibration). Now, the technical staff of Huaze Optoelectronics will introduce you to   1, cabinet correction    cabinet correction is a kind of production line correction, and full-color LED display manufacturers are required to add this link in the production line. Under normal circumstances, the cabinet calibration is the last link arranged before leaving the factory. It is mainly used to eliminate the difference in brightness and chromaticity between the inside of the cabinet and the cabinet, and to improve the uniformity of the LED display after splicing. There are three commonly used methods: One is to splice all the cabinets together to observe the display effect, but the work load of splicing is relatively large and it is inconvenient to realize; the second is to randomly select part of the cabinets for splicing and observe the correction effect; three It uses the measurement data recorded by the calibration system to simulate and evaluate the calibration effects of all cabinets. The LED production line for cabinet calibration and simulation evaluation/sampling inspection has been added.  The cabinet calibration needs to be carried out in a dark room, and it needs to be equipped with an area array imaging device and a colorimeter to measure the brightness and chromaticity information of each cabinet. In order to ensure that the calibration process of all cabinets is not affected by external environmental conditions and achieve the goal of consistency of brightness and chromaticity, the darkroom is required to be completely sealed, and the temperature and humidity are constant. During the calibration process, it must be fixed. For the position of the cabinet and the calibration instrument, the cabinet must be placed on the base to avoid the influence of ground reflection.  2. On-site calibration On-site calibration technology can select a suitable viewing location for calibration to ensure that the LED display achieves a satisfactory display effect in the on-site application environment, but the complex and changeable on-site environment and remote technical support are difficult problems that limit the on-site calibration. In particular, the cost and difficulty of on-site correction of some foreign orders are relatively high.   Due to the discreteness and attenuation of the LED display tube and the discreteness of the circuit components, the LED full-color display has the phenomenon of inconsistency in brightness and chromaticity, which seriously affects the display quality. In order to overcome the problem of non-uniformity of brightness and chromaticity of LED display, point-by-point correction technology came into being and developed rapidly. It can significantly improve the uniformity of LED display and improve display quality.  In order to ensure the uniformity of the LED display screen and reduce the cost of technical support, the cabinet calibration technology reflects its own special value. The cabinet calibration can greatly improve the display quality of the LED display screen after splicing, and it is more efficient than on-site calibration, and is not limited by time and space, and the cost is also low. Therefore, the cabinet calibration technology will become an indispensable part of the LED display manufacturing process and has a good application prospect.
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