Connection structure and connection method of both circuit boards

摘要

In a connection structure for both first and second circuit boards, plural first terminals are arranged on the first circuit board in an arrangement direction, and plural second terminal are arranged on the second circuit board in the arrangement direction. The first and second circuit boards are disposed so that the first connection terminals and the second connection terminals are overlapped to each other, and the first connection terminals and the second connection terminals are connected by using an electrical conductive material. In the connection structure, an arrangement pitch of the first and second connection terminals is made smaller at an endmost portion or/and in vicinity of the endmost portion in the arrangement direction.