摘要:
A method of forming a cell identification (201) includes forming a metal layer on a substrate, coating a photoresist material on the metal layer to form a photoresist film, exposing the photoresist film through a mask including a light-blocking pattern corresponding to a cell identification pattern, developing an exposed photoresist film, etching the metal layer using a developed photoresist film to form a metal pattern including the cell identification pattern, and irradiating a laser beam onto a symbol of the cell identification pattern. Furthermore, a display region (180) and a peripheral region (185) are defined on the substrate. An image is displayed in the display region (180). The peripheral region (185) surrounds the display region (180). The cell identification (201) formed in the peripheral region (185) includes the cell identification pattern and a mark (200) marked on the cell identification pattern. The cell identification pattern may be either a steady part (120) or a transient part (110). The steady part (120) is not changed during manufacturing processes. The transient part (110) is marked by the mark (200) during each of the manufacturing processes. The transient part (110) includes a plurality of cell identification arrays (101,103 and 105).