How to Deal with LED Electronic Display Chromatism Aberration?
LED electronic display in the sale of the time will inevitably produce Weihuo. These fabrics are different from the batch of products, the brightness is inevitable differences, after the show is not good results, this time must use point by point calibration technology.
Eliminate the difference by-point correction is a technique used to improve LED brightness uniformity and color fidelity of the electronic screen, on each pixel by the data acquisition LED electronic display, given correction coefficient matrix, then fed to the display Screen control system to achieve the difference between the pixel drive, 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 electronic display, the correction coefficient matrix 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. This technology can make different batches of the tail stitch together, but also the screen shows pure and delicate, true 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 field calibration to ensure that the display site in the field 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 difference in the spectrum, so only the measurement of luminous intensity can not accurately measure its chromaticity deviation.
2. Color correction refers to those who have a strong color resolution of the instrument calibration method, it can be more accurate measurement of the LED brightness, color value.
Therefore, the use of different batches of the main wavelength of the same tail LED screen, it is necessary to adjust the brightness and chroma. Both to ensure that the entire LED electronic display screen brightness consistent, but also the normal display of the screen color display. The general price of the tail product than the market price of large products have a price advantage, through the point by point calibration technology, these different batches of the tail file can play a normal function to improve the LED electronic display products use value, but also for customers to save A lot of cost.