Systems, computer software and methods for calculating relatedness scores which are indicative of relatedness of pairs of domain names requested by clients are described. The array substrate comprises a base substrate comprising a first surface and a second surface which is opposite to the first surface, and a pixel circuit arranged on the first surface of the base substrate, wherein the array substrate further comprises a driving circuit, which is arranged on the second surface of the base substrate and is in signal connection with the pixel circuit. The strain gauge is a resistance element and is disposed on the surface of the insulation substrate, the insulation substrate mainly contains a resin material, and the easy-to-deform portion is preferably a thin-wall portion. The orange light emitting layer is composed of a host material doped with a luminescent dopant emitting orange light.