| 摘要 |
A display device is provided with a display surface on which a plurality of source lines to which an image signal is inputted are arrayed, and a test wiring portion for transmitting a test signal to the plurality of source lines, the test wiring portion comprising a first conductive layer (210) connected to some of the plurality of source lines and a second conductive layer (220) connected to other of the plurality of source lines, the test wiring portion being able to attain high testing accuracy by having an insulating portion (201) for insulating the first conductive layer (210) and the second conductive layer (220). |
