Inspection apparatus and method for display device

An apparatus for inspecting a display device including an active matrix substrate, a counter substrate, and a display medium interposed between the active matrix substrate and the counter substrate, the active matrix substrate having a plurality of first bus lines and a plurality of second bus lines formed thereon, the apparatus comprising:

• a first substrate unit including a plurality of first inspection terminals, a plurality of first inspection lines, a plurality of second inspection lines, and first supporting means including first and second faces for supporting the first inspection terminals and the first and second inspection lines, each of the first inspection lines being connected to one of the first inspection terminals, the second inspection lines being provided on the second face of the first supporting means which is different from the first face thereof on which the first inspection lines are provided, each of the second inspection lines being selectively connected to one of the first inspection lines by first connecting means, wherein when the second inspection lines are brought directly in contact with the first bus lines, each of the first bus lines is connected to one of the first inspection terminals;
• a second substrate unit including a plurality of second inspection terminals, a plurality of third inspection lines, a plurality of fourth inspection lines, and second supporting means including third and fourth faces for supporting the second inspection terminals and the third and fourth inspection lines, each of the third inspection lines being connected to one of the second inspection terminals, the fourth inspection lines being provided on the fourth face of the second supporting means which is different from the third face thereof on which the third inspection lines are provided, each of the fourth inspection lines being selectively connected to one of the third inspection lines by second connecting means, wherein when the fourth inspection lines are brought directly in contact with the second bus lines, each of the second bus lines is connected to one of the second inspection terminals;
• driving signal input means for supplying driving signals for performing a display inspection of the display device to the first inspection terminals and the second inspection terminals;
• resistance measuring means for measuring resistances of the first bus lines and the second bus lines of the display device;
• and
• means for connecting either of the driving signal input means or the resistance measuring means to the first substrate unit and the second substrate unit.