According to an embodiment, an authority changing device includes a first determiner, a second determiner, and a changing unit. A tree structure of data may be serialized into a data stream. A thin film transistor array substrate of the display panel includes a first scan line and a second scan line. And with this assignment the alias is thus broken. One or more of thin-film components is formed by depositing a thin-film in the trench followed by processing the deposited thin-film to have the desired thickness.