Tag: LED display point by point correction, tail LED display

LED display screen is inevitably produce tail product. These tail products are from different batches of products, it could inevitable differences in brightness. After assembling the display effect is not good enough, which need us to use pixel correction technique to fix that problem.

Pixel correction is a kind of technology apply to improve the brightness homogeneity and color fidelity of LED electronic screens.

Through each pixel data acquisition on the LED display, figure out correction ratio matrix and then feedback to the LED screen control system, in order to reduced the screen luminance and color differences. This technology can match the different batches of the tail products and can also make the display pictures showed pure and delicate, color natural.

Firstly, according to the applications, pixel correction system is divided into two kinds :

a) A single led cabinet point- by - point correction. Finished the cabinet pixel correction on production line to make sure every led cabinet be highly uniformity.

b) The big-screen calibration point by point on site. At the LED full color large screen displays scene, choose an appropriate viewing location to finish on Site calibration. Ensure that displays in the field observing position to achieve a high degree of uniformity

Secondly, pixel correction is divided into color correction and brightness correction

Brightness correction is a correction method of LED luminous intensity. At the moment, due to some calibrating instrument lack of good color correction resolution that make it can not accurate measure the spectral differences. Therefore, we could only measure the luminous intensity but not accurate measure the color deviation.

Color correction refers to those who have the ability to distinguish color measuring instrument calibration mode, it can accurately measure the LED brightness and color values.

Thus, when use a different batch of LED screens but the main wavelength are the same LED products, it is necessary to make the luminance and chromaticity correction. Which could both ensure that the entire brightness uniformity of LED display screen, can show correctly color display effect. Tail product takes great advantages in prices on market, through pixel correction technology could make these tail led panels exert function normally and improve LED display values also save a lots of cost for customers.

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