Elimination of differences Point-by-point correction is a technology to enhance the brightness uniformity and color fidelity of LED electronic screens. By collecting data from each pixel on the LED display, a matrix of correction coefficients is given and then fed back to the display Control system, to achieve the difference between the pixels driven, reducing the brightness and color differences.
Point-by-point correction is a technology to enhance the brightness uniformity and color fidelity of LED electronic screens. By collecting data from each pixel on the LED display, the correction coefficient matrix is given and then fed back to the display control system , To achieve the difference between the pixel drive, reducing the brightness and color differences. This technology can make different batches of stalls together, but also the screen shows pure and delicate, natural color natural.
First, according to the application, point by point calibration system is divided into two types:
1, a single LED box by point correction, in the production line by box correction, to ensure that the factory each box to achieve a high degree of uniformity;
2, the scene of large-screen point by point correction, in the LED full-color large screen display site to select the appropriate viewing location for on-site correction to ensure that the display in the field observation position to achieve a high degree of uniformity;
Second, point by point correction is divided into chroma correction and brightness correction.
1. Brightness correction is the correction of LED luminous intensity. At present, because some calibration instruments lack good color resolution, and can not accurately measure the spectral differences, so only the measurement of luminous intensity can not accurately measure its chromaticity deviation.
2. Color correction refers to those with color resolution ability of the calibration of the instrument, it can be more accurate measurement of the LED brightness, color values.