Information processing device

An information processing device comprising:

• a control board;
• a housing in which the control board is accommodated;
• a display which is disposed outside the housing and is fixed to the housing;
• a flexible printed board which is disposed inside the housing and covers one of faces of the control board;
• and
• a detection mechanism which detects that the display has been detached from the housing;
• wherein in a case that a side where the control board is disposed with respect to the flexible printed board is referred to as a first direction side, and an opposite side to the first direction side is referred to as a second direction side,
• the flexible printed board is formed in a box shape whose first direction side is opened and is disposed on the first direction side with respect to the display;
• the flexible printed board is formed with a tamper detection pattern which detects at least its own disconnection;
• the detection mechanism comprises a contact type detection switch and a rod-shaped member in a bar shape which presses the detection switch;
• and
• the rod-shaped member is pressed against the contact type detection switch by the display which is fixed to the housing.