With the burgeoning expansion of digital technologies, electronic displays are becoming increasingly prevalent in our daily lives. These displays are not limited to stationary ones like traditional TVs but have also found their way into mobile devices such as smartphones and wristwatches. To facilitate this significant shift, it is evident that substantial engineering efforts are necessary. However, equally crucial is the establishment of proper methods for measurement and evaluation. Without the development of such evaluation methods, technological progress would be hindered.