A touch input device includes an organic light emitting display module; a pressure sensor including a pressure electrode outputting a first sensing signal for detecting a touch pressure and which is attached under the organic light emitting display module; a touch sensor including drive electrodes to which a driving signal is applied and receiving electrodes outputting a second sensing signal for detecting a touch position; and a substrate located under the organic light emitting display module. The substrate is spaced apart from the organic light emitting display module and includes a reference potential layer. A controller detects a magnitude of the touch pressure based on the first sensing signal. The organic light emitting display module is bent by the touch pressure. A distance between the pressure electrode and the reference potential layer is changed according to a bending of the organic light emitting display module.