IEC 63181-2:2020 specifies measuring methods for LCD multi-screen display terminals. To evaluate the characteristics of LCD multi-screen display terminals, the following measurement items are specified:

- gap (physical, optical): detailed splicing precision; - splicing deviation: splicing accuracy of active areas of LCD splicing screen; - installation deviation: the flatness of terminal surfaces in vertical and horizontal directions; - luminance uniformity: luminance uniformity of adjacent LCD units; - chromatic uniformity: chromatic uniformity of adjacent LCD units.