How to distinguish the stand or fall of led display

1 screen, the smoothness of the surface roughness to within + / - 1 mm, to ensure that the image is not distorted, local convex or concave leads to display the visual Angle of corner. The stand or fall of flatness is mainly decided by the production process. 2 the brightness of the indoor full color, brightness and visual Angle to above 800 CD/m2, outdoor full color brightness to above 1500 CD/m2, to guarantee the normal work of the screen, otherwise it will because the brightness is too low and can't see shown in the image. Mainly by the size of the brightness of LED tube core is good or bad decision. Viewing angles directly depends on the size of the display screen of the audience, and the bigger the better. The size of the viewing Angle is mainly composed of tube core encapsulated way to decide. 3, white balance effect white balance effect is one of the most important indicator display. Chromatology on red, green and blue color for the proportion of 1:4. Lost. 16 will only show the pure white, if the actual rate is a little deviation will appear white balance deviation, generally pay attention to whether there is a slant blue, white slant yellow phenomenon. The stand or fall of the white balance is mainly composed of display control system to determine, tube core of color reducibility may also be affected. 0 a touch display on the energy saving, how to improve the luminous efficiency of touch display in the next article 2016 of the money in touch display?
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