The present invention provides a three-dimensional (3D) display apparatus and a 3D system. The system comprises the 3D display apparatus and polarizer glasses. The 3D display apparatus comprises a display panel and a pattern retarder film. Retarder rows of the pattern retarder film are positioned to pixel row pairs of the display panel, respectively. First pixel rows of the pixel row pairs include first sub-pixels and second sub-pixels arranged in an alternating manner. The present invention can mitigate the image crosstalk and the color shifting problem exiting in the conventional 3D display.