A display device (1, 2, 3), comprising: a display structure including: a display panel including: a display area; and a non-display area around the display area; and a touch sensing layer disposed on the display panel and including: a first portion overlapping the display area; and a second portion overlapping the non-display area; a window structure including a window disposed on the display structure and a light blocking member disposed on one surface of the window facing the display structure; a bonding layer disposed between the display structure and the window structure; and a touch flexible circuit board electrically connected with the touch sensing layer, the touch flexible circuit board including: a first substrate member connected to the second portion, a second substrate member, and wherein the second substrate member includes a bending portion extending from the first substrate member and an extension portion extending from the bending portion and disposed under the display structure, characterized in that the second substrate member is provided with an ultraviolet transmitting member which transmits ultraviolet light emitted from a side of the bonding layer and extends from the first substrate member in a predetermined direction, the light blocking member overlaps the ultraviolet transmitting member; wherein the ultraviolet transmitting member is an opening member defined in the second substrate member and penetrating the second substrate member, wherein the touch flexible circuit board further includes an ultraviolet transmitting resin layer provided in the opening member, and wherein the ultraviolet transmitting resin layer includes an ultraviolet transmitting resin and light scattering particles dispersed in the ultraviolet transmitting resin such that ultraviolet light having passed through the ultraviolet transmitting resin layer is scattered and diffused by the light-scattering particles, wherein the ultraviolet transmitting member is defined at the bending portion, and wherein the ultraviolet transmitting resin is further provided in the form of being applied to the entire bending portion. a display structure including: a display panel including: a display area; and a non-display area around the display area; and a touch sensing layer disposed on the display panel and including: a first portion overlapping the display area; and a second portion overlapping the non-display area; a display panel including: a display area; and a non-display area around the display area; and a display area; and a non-display area around the display area; and a touch sensing layer disposed on the display panel and including: a first portion overlapping the display area; and a second portion overlapping the non-display area; a first portion overlapping the display area; and a second portion overlapping the non-display area; a window structure including a window disposed on the display structure and a light blocking member disposed on one surface of the window facing the display structure; a bonding layer disposed between the display structure and the window structure; and a touch flexible circuit board electrically connected with the touch sensing layer, the touch flexible circuit board including: a first substrate member connected to the second portion, a second substrate member, and wherein the second substrate member includes a bending portion extending from the first substrate member and an extension portion extending from the bending portion and disposed under the display structure, characterized in that the second substrate member is provided with an ultraviolet transmitting member which transmits ultraviolet light emitted from a side of the bonding layer and extends from the first substrate member in a predetermined direction, the light blocking member overlaps the ultraviolet transmitting member; wherein the ultraviolet transmitting member is an opening member defined in the second substrate member and penetrating the second substrate member, wherein the touch flexible circuit board further includes an ultraviolet transmitting resin layer provided in the opening member, and wherein the ultraviolet transmitting resin layer includes an ultraviolet transmitting resin and light scattering particles dispersed in the ultraviolet transmitting resin such that ultraviolet light having passed through the ultraviolet transmitting resin layer is scattered and diffused by the light-scattering particles, wherein the ultraviolet transmitting member is defined at the bending portion, and wherein the ultraviolet transmitting resin is further provided in the form of being applied to the entire bending portion.