Color difference is an big problem to full color LED display screens. It will influence the displaying effects and visual experience of LED screens. The engineer from Glux Visual Effects Tech have analyzed the following three factors that will influence the color difference of full color LED display screens.
1. The light-emitting component used on full color LED screens. The LED chips are the main light-emitting component of LED display screens. During the production of LED chips, if the LED chips are produced in different batches, their brightness may different, this phenomenon is still unavoidable to the LED chip producers. For the LED display screen manufacturers, it is better to use same batch LED chips to produce your full color LED display screens, make sure the LED screen’s brightness, color are in the same type. 2. The driving components used on the full color LED display screens. Full color LED display screens driving components are usually constant current driver chip, such as MBl5026. There are 16 constant current drive output in these chips, you can use the electric resistance to set the current output value. The output error on same chip should be controlled within 3%; on different chip’s, the output error should be controlled within 6%. it is normal that full color LED display screens have 25% brightness error between the pixels. If the LED chips on full color LED screens are not the same level and type, the brightness error may rose to 40% or more. It should be noticed that full color LED display screen brightness inconsistent can not be changed or corrected by the late proofreading equipment, only can be controlled during manufacturing process. So, if you have bought inconsistent brightness LED screens, please contact your service provider or manufacturer to solve it. 3. There are different raw materials applied during the production period. If the materials, like the LED chips, driver are not the same batch, their brightness, color, gray scale, ect. will be different in the future. Most full color LED display screen manufacturers knows this and will avoid this problem from happening. In general, color difference is an important issue to the application of full color LED display screens. Both the LED display screen manufacturer and the users should all pay attention to this.
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Glux LED ScreenLeading LED screen, creater, designer and producer 存档
October 2017
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