| 摘要 |
PROBLEM TO BE SOLVED: To disclose a method of manufacturing a metal wiring and a method of manufacturing a display board for improving display quality. SOLUTION: The method includes: sequentially forming a channel layer and a metal layer on a base substrate; forming a photopattern in a wiring region; etching the metal layer by using the photopattern to form the metal wiring; removing the photopattern by only a fixed thickness to form the residual photopattern on the metal wiring; etching the channel layer in such a manner that an undercut is formed under the metal wiring by using the metal wiring; and removing the projected part of the metal wiring that is projected by the undercut by using the residual photopattern. Thereby, an improvement in aperture ratio, afterimage removal, and an improvement in image quality can be contrived. COPYRIGHT: (C)2008,JPO&INPIT |
