An electronic device comprising: a display comprising a display flat portion and a display curved portion, the display comprising: an external protective layer, and a panel module layer disposed under the external protective layer; a frame on which the display is disposed, the frame comprising: a first frame portion comprising: a first surface (215_1) which is curved and has a portion having a first curvature corresponding to a second curvature of a portion of the display curved portion, a groove formed along an edge of the first surface (215_1), wherein the groove has a first portion formed within the portion of the first surface having the first curvature and a second portion facing a side of the display curved portion, wherein the groove is formed as an indent of the frame in an edge area of the first surface (215_1) of the frame, and a second surface (215_2) which abuts the groove and faces the side of the display curved portion; and a second frame portion extended from the first frame portion and supporting the display flat portion; and an adhesive which is disposed at least in the portion of the groove formed within the first surface (215_1), the adhesive being disposed between the frame and the display and attaching the display curved portion to the frame. a display comprising a display flat portion and a display curved portion, the display comprising: an external protective layer, and a panel module layer disposed under the external protective layer; a frame on which the display is disposed, the frame comprising: a first frame portion comprising: a first surface (215_1) which is curved and has a portion having a first curvature corresponding to a second curvature of a portion of the display curved portion, a groove formed along an edge of the first surface (215_1), wherein the groove has a first portion formed within the portion of the first surface having the first curvature and a second portion facing a side of the display curved portion, wherein the groove is formed as an indent of the frame in an edge area of the first surface (215_1) of the frame, and a second surface (215_2) which abuts the groove and faces the side of the display curved portion; and a second frame portion extended from the first frame portion and supporting the display flat portion; and an adhesive an external protective layer, and a panel module layer disposed under the external protective layer; a frame on which the display is disposed, the frame comprising: a first frame portion comprising: a first surface (215_1) which is curved and has a portion having a first curvature corresponding to a second curvature of a portion of the display curved portion, a groove formed along an edge of the first surface (215_1), wherein the groove has a first portion formed within the portion of the first surface having the first curvature and a second portion facing a side of the display curved portion, wherein the groove is formed as an indent of the frame in an edge area of the first surface (215_1) of the frame, and a second surface (215_2) which abuts the groove and faces the side of the display curved portion; and a second frame portion extended from the first frame portion and supporting the display flat portion; and a first frame portion comprising: a first surface (215_1) which is curved and has a portion having a first curvature corresponding to a second curvature of a portion of the display curved portion, a groove formed along an edge of the first surface (215_1), wherein the groove has a first portion formed within the portion of the first surface having the first curvature and a second portion facing a side of the display curved portion, wherein the groove is formed as an indent of the frame in an edge area of the first surface (215_1) of the frame, and a second surface (215_2) which abuts the groove and faces the side of the display curved portion; and a first surface (215_1) which is curved and has a portion having a first curvature corresponding to a second curvature of a portion of the display curved portion, a groove formed along an edge of the first surface (215_1), wherein the groove has a first portion formed within the portion of the first surface having the first curvature and a second portion facing a side of the display curved portion, wherein the groove is formed as an indent of the frame in an edge area of the first surface (215_1) of the frame, and a second surface (215_2) which abuts the groove and faces the side of the display curved portion; and a second frame portion extended from the first frame portion and supporting the display flat portion; and an adhesive which is disposed at least in the portion of the groove formed within the first surface (215_1), the adhesive being disposed between the frame and the display and attaching the display curved portion to the frame.