Abstract: A system of inspecting a display panel includes an inspection apparatus configured to determine whether the display panel has a lighting defect. If determining that the display panel has a lighting defect, the inspection apparatus is configured to make a cleaner to clean a portion of the display panel having the lighting defect. The inspection apparatus is configured to determine presence or absence of the lighting defect again at least on the portion of the display panel having the lighting defect after the cleaning. The inspection apparatus determines that the display panel has no defect if detecting no lighting defect after the cleaning or if determining that pre-cleaning lighting defect information and post-cleaning lighting defect information does not match, and the inspection apparatus determines that the display panel has a defect if determining that the pre-cleaning lighting defect information and the post-cleaning lighting defect information match.

Abstract: A display device includes a display surface displaying information thereon and an outer surface different from the display surface. The outer surface includes a mark providing a sense of touching different from a sense of touching a surrounding portion thereof such that a touching position of the display device is recognized.