How to Do Color Proofing for Full color LED Display?

Publisher: Supplier of LED Display Time: 2022-03-31 11:54 Views: 285

In recent years, the application of colorful indoor LED displays in stadiums, road traffic, advertising, leasing, etc. has shown a rapid growth trend. From the current market demand analysis, the necessity of on-site proofreading is becoming more and more prominent.

Uniformity proofreading is summarized as: factory proofreading, repair proofreading, service area proofreading and on-site proofreading.


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Several on-site proofreading methods:


1. Proofreading method based on LED operating time: This is an early on-site proofreading method, which is based on tracking and recording the operating time of each LED module to perform on-site calibration of the display screen. By roughly calculating the working time of each LED, measuring their respective uniform brightness attenuation, estimating different calibration levels, and then sending them to each LED module for corresponding adjustment. This approach does not require any manual input. However, this method overlooks a very important problem, the LED attenuation frequency estimated by the running time is not suitable for each LED.


2. According to the on-site common proofreading method: In order to completely improve the uniformity of the display screen, it is necessary to use special collection equipment to quickly collect the light and color information of each pixel of the LED display screen on the spot, and use the relevant algorithm to analyze each pixel point. The actual attenuation level of each LED light-emitting tube is compensated, and then the real-world common calibration is completed. Through proofreading, the display screen can be restored to the uniform display function just before leaving the factory.