Drop test device and drop test method using the same

A drop test device comprising:

• a falling body including:
• a display module which operates in a first mode and a second mode;
• and
• a jig to which the display module is coupled, the jig including:
• a first jig to which the display module in the first mode is coupled;
• and
• a second jig to which the display module in the second mode is coupled;
• a clamp which grips the falling body and drops the falling body by releasing, by a predetermined operation, a gripping force applied to the falling body;
• and
• an impact plate including an impact surface with which the falling body collides,
• wherein a first size of a display area of the display module in the first mode is smaller than a second size of the display area of the display module in the second mode in a plan view,
• wherein each of the first jig and the second jig has a plate shape parallel to a plane defined by a first direction and a second direction crossing the first direction,
• wherein the second jig has a first width greater than a first width of the first jig in the second direction, and has a second width equal to a second width of the first jig in the first direction,
• wherein the falling body further includes a cover coupled to a lower portion of the display module and a lower portion of one of the first jig and the second jig,
• wherein each of the first jig and the second jig includes an upper surface on which the display module is disposed and a lower surface which faces the upper surface,
• wherein the cover covers at least part of the lower surface,
• wherein each of the first jig and the second jig further includes a side surface which connects the upper surface and the lower surface,
• wherein the side surface includes a long side surface extending in the first direction and a short side surface extending in the second direction,
• wherein the cover covers at least part of the long side surface of the one of the first jig and the second jig,
• wherein the long side surface includes a first long side surface and a second long side surface which faces the first long side surface, and
• wherein the cover includes a first cover which covers the first long side surface of the one of the first jig and the second jig and a second cover which covers the second long side surface of the one of the first jig and the second jig.