Mother display panel for manufacturing a display panel

A mother display panel for manufacturing a display panel is provided to be easily divided into plural display panels having different and various sizes through a cutting mark group including plural unit cutting marks. In a display panel manufacturing mother display panel(901) divided into plural display panels(910,920), the mother display panel includes plural cutting mark groups(510) which are arranged in column and row direction and become a reference of each corner of the plural display panels to be divided. Each cutting mark group includes plural unit cutting marks(511) formed as being spaced from each other. The plural display panels to be divided have two or more kinds of sizes.