A panel device includes a display panel including a plurality of pixels, each of the plurality of pixels including a light source area and a non-light source area, and a polarizing film including a left eye pattern and a right eye pattern alternately arranged line-by-line in a diagonal direction of the plurality of pixels, the polarizing film is disposed on the display panel such that a border between the left eye pattern and the right eye pattern is disposed over the non-light source area and not over the light source area.