LED display will inevitably produce tail goods when selling. These end goods due to different batches of products, the brightness is inevitable difference, after assembling the display effect is poor, this time must use point-by-step correction technology.
Eliminating differences by point school is a technology used to enhance the brightness uniformity and color fidelity of LED electronic screens, through the data acquisition of each pixel point on the LED display, the correction coefficient matrix is given, then the feedback is given to the display control system, which realizes the differential driving of pixel and reduces the difference of brightness and color.
Point School is a technology used to enhance the brightness uniformity and color fidelity of LED electronic screens, through the data acquisition of each pixel point on the LED display, the correction coefficient matrix is given, then the feedback is given to the display control system, which realizes the differential driving of pixel and reduces the difference of brightness and color. This technology can make different batches of the tail file splicing together, but also can screen display pure and delicate, color true nature.
One, according to the application situation, the point correction system is divided into two kinds:
Individual LED box-by-point correction, in the production line by box-by-case correction, to ensure that the factory of each box to achieve a high degree of uniformity;On-Site screen-point correction, in the LED Full-color large-screen display site to choose the right spot for the site correction, to ensure that the display on-site observation position to achieve a high degree of uniformity;
Second, the point correction is divided into chroma correction and brightness correction.
Brightness correction is the calibration of LED luminous intensity. At present, due to the lack of good color resolution of some calibration instruments, it is not possible to accurately measure the difference in this spectrum, so only the measurement of luminous intensity can not measure its chroma deviation accurately.Chroma correction refers to those with a strong color resolution of the photometric instrument calibration, it can be more accurate measurement of LED brightness, chroma value.