A display apparatus, the display apparatus comprising: a display body comprising an image display surface; and a photographing unit comprising a camera module arranged to capture an image of a user, wherein the photographing unit is arranged in a first position in which the photographing unit is accommodated in the display body during non-photographing, and arranged in a second position in which the photographing unit protrudes out of the display body during photographing, wherein the camera module faces in a same direction as a front of the display body when the photographing unit is placed in the second position, and the camera module faces upwards when the photographing unit is placed in the first position; wherein the camera module comprises a lens projection window in front of the camera module and a surface adjacent the lens projection window, wherein lens projection window is arranged to be exposed to the outside of the display apparatus when the photographing unit is placed in the second position and only said surface adjacent the lens projection window is arranged to be exposed to the outside of the display apparatus when the photographing unit is placed in the first position; characterized in that: the display apparatus further comprises a photographing unit casing with a curved shape provided inside, and the photographing unit is arranged to move from the first position to the second position or from the second position to the first position while sliding along the curved shape provided inside the photographing unit casing such that the photographing unit follows a curved trajectory corresponding to the curved shape. a display body comprising an image display surface; and a photographing unit comprising a camera module arranged to capture an image of a user, wherein the photographing unit is arranged in a first position in which the photographing unit is accommodated in the display body during non-photographing, and arranged in a second position in which the photographing unit protrudes out of the display body during photographing, wherein the camera module faces in a same direction as a front of the display body when the photographing unit is placed in the second position, and the camera module faces upwards when the photographing unit is placed in the first position; wherein the camera module comprises a lens projection window in front of the camera module and a surface adjacent the lens projection window, wherein lens projection window is arranged to be exposed to the outside of the display apparatus when the photographing unit is placed in the second position and only said surface adjacent the lens projection window is arranged to be exposed to the outside of the display apparatus when the photographing unit is placed in the first position; characterized in that: the display apparatus further comprises a photographing unit casing with a curved shape provided inside, and the photographing unit is arranged to move from the first position to the second position or from the second position to the first position while sliding along the curved shape provided inside the photographing unit casing such that the photographing unit follows a curved trajectory corresponding to the curved shape. the display apparatus further comprises a photographing unit casing with a curved shape provided inside, and the photographing unit is arranged to move from the first position to the second position or from the second position to the first position while sliding along the curved shape provided inside the photographing unit casing such that the photographing unit follows a curved trajectory corresponding to the curved shape.