Abstract: The present invention provides an apparatus for manufacturing a secondary battery, which includes a pressing part configured to press a stack in which electrodes and separators are alternately disposed, wherein the pressing part includes: a main pressing part configured to press an entire surface of the stack; and a sub pressing part including a drum part configured to press a partial surface of the stack, on which an edge part of an electrode active material layer provided on each of the electrodes is disposed, on the entire surface, wherein the drum part includes: a body part having a rotational shaft; and an elastic part provided on an outer circumferential surface of the body part and configured to press the partial surface of the stack.

Abstract: A display apparatus, includes: a tube part; and an iris unit comprising a main disk body accommodated in the tube part and comprising a main opening formed in a light path, a shutter member rotatably coupled with respect to the main disk body to open and close the main opening, and a driving part generating an electromagnetic force to rotate the shutter member.