Abstract: Provided is a semiconductor device comprising an active region on a substrate and including first and second sidewalls extending in a first direction and an epitaxial pattern on the active region, wherein the epitaxial pattern includes first and second epitaxial sidewalls extending from the first and second sidewalls, respectively, the first epitaxial sidewall includes a first epitaxial lower sidewall, a first epitaxial upper sidewall, and a first epitaxial connecting sidewall connecting the first epitaxial lower sidewall and the first epitaxial upper sidewall, the second epitaxial sidewall includes a second epitaxial lower sidewall, a second epitaxial upper sidewall, and a second epitaxial connecting sidewall connecting the second epitaxial lower sidewall and the second epitaxial upper sidewall, a distance between the first and second epitaxial upper sidewalls decreases away from the active region, and the first and second epitaxial lower sidewalls extend in parallel to a top surface of the substrate.

Abstract: It is an aspect of the present disclosure to provide a display apparatus having an optical clear adhesive (OCA) layer provided such that a permittivity of the OCA layer is changed when a pressure is applied and a method of controlling the same. In accordance with one aspect of the present disclosure, a display apparatus includes: a touch panel; a cover glass disposed at an upper side of the touch panel; a display disposed at a lower side of the touch panel; and an optical clear adhesive (OCA) layer disposed between the touch panel and the cover glass to bond the touch panel and the cover glass, wherein the OCA layer is provided such that a permittivity of the OCA layer is changed when a pressure is applied.