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How to judge the grade of LED Display Screen
Tag: LED display quality, judge the grade of LED display screen, brightness of full color LED displays

 

Verypixel Fastile indoor front access LED stage background

Verypixel Fastile indoor front access LED stage background

 

Nowadays, the LED electronic display market is in chaos, cost controlling makes greatly difference in quality of LED display. Many unscrupulous merchants usually sell seconds at best quality prices to cheat customers. In order to help customers have a clear distinguish of LED screens quality, according to VERYPIXEL, whether the full color led screen is good or bad we mainly need to judge it from the following several aspects:

 

1. Flatness


The surface flatness of electronic screen must be within±1mm, in order to ensure that the display image is not distorted, the visual angle of local convex or concave will result in the dead space of display . The quality of the flatness is mainly decided by the production process.


2. Brightness and View Angle


The Brightness of Indoor Full Color Screen must be over 00cd/m2 , the brightness of outdoor LED display should be over 1500cd/m2, so that it can guarantee the normal work of screen, or it won't see the image if the brightness is too low. The Brightness intensity is mainly decided by the LED tube core.

 

ow many audience can be hold is directly depend on how big the visual angle is, so the bigger the better. The size of the viewing angle is mainly determined by the encapsulation method of tube core.

 

3. White balance effect


White balance effect is one of the most important indicator of display. Color Science show the primary colors red,green and blue are on the ratio of 1:4.6:0.16, it will show the pure white color, if the real ratio is deviated it will appear white balance, generally we should pay attention to a bluish white, yellowish green phenomenon. White balance effect is mainly decided by the control system of the display, tube core also can effect the color reducing.

 

4. Color Reduction


Color Reduction refers to the reduction of the color display, it mean the color of screen must be consistent with the color of playback source , so as to ensure the authenticity of images.

 

Verypixel Smartile outdoor front service LED video wall

Verypixel Smartile outdoor front service LED video wall

 

5. Whether there is a phenomenon of Mosaic and Dead Spot


Mosaic refers to the small block which is always bright or always dark, that is the phenomenon of dead module, the main reason is adapted the poor quality connector of screen. Dead spot refers to the single point appears on the screen of the constant light or dark, the quantity of dead spot is mainly decided by the tube core.

 

6. Whether there is Color lump or not


Color lump refers to the obvious color aberration exist between the adjacent module, color transition in units of modular, because of poor control system,low gray level and low scanning frequency are caused color lump phenomenon.

 

VERYPIXEL products aim: only offer quality pixels, so that our products have passed the standard the above tests before come out our factory, so you have no reasons to don't choose our LED Screen.

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