Abstract: A method of inspecting a substrate includes providing a substrate on a test stage, the substrate including a plurality of regions, and scanning the substrate using a scanning electron microscope (SEM) column, where the scanning of the substrate includes scanning a first region of the plurality of regions of the substrate, after scanning the first region, scanning a second region of the plurality of regions of the substrate, the second region being spaced apart from the first region, and after scanning the second region, scanning a third region of the plurality of regions of the substrate, the third region being between the first region and the second region, and where the third region is adjacent to the first region.

Abstract: The present invention relates to a novel naphthyridinone derivative compound, a pharmaceutically acceptable salt thereof, a hydrate thereof, or a stereoisomer thereof, which are each relevant to a compound for inhibiting ENPP1, a composition for inhibiting ENPP1, and a method for inhibiting ENPP1.

Abstract: An organic light-emitting display device includes quantum dots and an RGB color filter layer having quantum dots and thus is capable of removing 100% of interference among red, green, and blue color filters.