The present invention discloses an encapsulation cap which not only seals simultaneously structural elements formed on two substrates but also has sufficient moisture-absorbing function by using only one getter (moisture absorbent) attached thereto, and a display device using the same. For separating structural elements formed on the glass substrate from the exterior, an encapsulation cap according to the present invention comprises a first surface on which a first recess is formed; and a second surface which is opposite to the first surface and has a second recess formed thereon, wherein the first surface is attached to a first substrate on which structural elements are formed, the second surface is attached to a second substrate on which structural elements are formed, and the structural elements formed on the first and second substrates are received in the first and second recess, respectively.