Display device and display module

A display device comprising:

• a display portion;
• a first frame including an engaging protrusion portion protruding in a first direction outward from an outer edge of said first frame, arranged to overlap with said display portion;
• and
• a second frame including an engaging hole engaging with said engaging protrusion portion of said first frame, wherein
• said engaging protrusion portion of said first frame includes:
• a first engaging portion protruding in said first direction outward from said outer edge of said first frame and engaging with said engaging hole to prevent a movement of said first frame in a second direction separating from said second frame, and
• a second engaging portion protruding in a third direction in which said first frame is mounted to said second frame and engaging with said engaging hole to prevent a movement of said engaging protrusion portion of said first frame in a fourth direction inward from said outer edge of said first frame opposite to said first direction with respect to said second frame,
• said second direction is a direction orthogonal to said first direction and opposite to said third direction,
• said engaging hole has a first inner surface opposed to said first engaging portion and a second inner surface opposed to said second engaging portion at a prescribed interval along said fourth direction, and
• said prescribed interval is smaller than a distance between an end of said first engaging portion in the first direction and an end of said first inner surface in the fourth direction.