An optical sheet for three-dimensional images and a three-dimensional image display device using the same, are discussed. Users of a cellular telephone, a personal computer, or other devices or services can register to a database that collects transaction and other activity for the user. In some examples, a first portion of the first sense connection can be disposed in a first region of the touch sensor panel, a second portion of the second sense connection can be disposed in the first region, and a third portion of the second sense connection can be disposed in a second region of the touch sensor panel. Thus, an auxiliary heat-insulating jig necessary for modifying a high-speed temperature-control heat treatment apparatus of an intermediate temperature specification to a high-speed temperature-control heat treatment apparatus of a high-temperature specification is provided. Metal alloy systems that can be successfully formed using the processes of the invention, include elemental iron and iron alloys including low and medium alloy steels, tool steels and a number of specialty iron-base alloys.