A display device , having a detachable pattern , the display device comprising: a window ; a display ; and a touch screen ; characterized in that : the display includes an adhesion reduction layer formed thereon so that the adhesion reduction layer reduces an adhesive force of the detachable pattern for being attached to and detached from the adhesion reduction layer, the window includes a detachable pattern disposed on the window, wherein the detachable pattern is made of a curable adhesive layer with regions that have not been cured (e) and regions that have been cured (f), and the detachable pattern is detachably attached directly to the adhesion reduction layer , and the touch screen is disposed between the display and the adhesion reduction layer , or between the window and the detachable pattern , wherein an area occupied by the regions of the curable adhesive layer that have not been cured (e) is 5 to 95% of the detachable pattern so that the detachable pattern has an adhesive force of O.l × 0.00980664999999998 N /25mm to 500 x 0.00980664999999998 N /25mm depending on the area occupied by the regions of the curable adhesive layer that have not been cured (e). a window ; a display ; and a touch screen ; characterized in that : the display includes an adhesion reduction layer formed thereon so that the adhesion reduction layer reduces an adhesive force of the detachable pattern for being attached to and detached from the adhesion reduction layer, the window includes a detachable pattern disposed on the window, wherein the detachable pattern is made of a curable adhesive layer with regions that have not been cured (e) and regions that have been cured (f), and the detachable pattern is detachably attached directly to the adhesion reduction layer , and the touch screen is disposed between the display and the adhesion reduction layer , or between the window and the detachable pattern , wherein an area occupied by the regions of the curable adhesive layer that have not been cured (e) is 5 to 95% of the detachable pattern so that the detachable pattern has an adhesive force of O.l × 0.00980664999999998 N /25mm to 500 x 0.00980664999999998 N /25mm depending on the area occupied by the regions of the curable adhesive layer that have not been cured (e). the display includes an adhesion reduction layer formed thereon so that the adhesion reduction layer reduces an adhesive force of the detachable pattern for being attached to and detached from the adhesion reduction layer, the window includes a detachable pattern disposed on the window, wherein the detachable pattern is made of a curable adhesive layer with regions that have not been cured (e) and regions that have been cured (f), and the detachable pattern is detachably attached directly to the adhesion reduction layer , and the touch screen is disposed between the display and the adhesion reduction layer , or between the window and the detachable pattern , wherein an area occupied by the regions of the curable adhesive layer that have not been cured (e) is 5 to 95% of the detachable pattern so that the detachable pattern has an adhesive force of O.l × 0.00980664999999998 N /25mm to 500 x 0.00980664999999998 N /25mm depending on the area occupied by the regions of the curable adhesive layer that have not been cured (e). <EOS>