A touch screen display apparatus includes a first substrate including a pixel electrode and a lower sensor electrode, a second substrate facing the first substrate and including a common electrode and an upper sensor electrode facing the lower sensor electrode, a liquid crystal layer interposed between the substrates, a first alignment layer disposed on the pixel electrode and the common electrode, a second alignment layer disposed on the lower sensor electrode, and a third alignment layer disposed on the upper sensor electrode. The second or third alignment layers aligns the liquid crystal layer in a different direction from a direction the first alignment layer aligns the liquid crystal layer. When pressure is applied onto a point on the first or second substrate, a distance and a capacitance between the lower sensor electrode and the upper sensor electrode at the point are changed to detect a position of the point.