Optical assembly and display device

The invention provides an optical assembly. The optical assembly comprises a first optical film and a second optical film, the first optical film is provided with a plurality of first microstructures,and the first microstructures are arranged in a checkerboard mode with a first direction as the reference. The second optical film is provided with a plurality of second microstructures, the second microstructures are arranged in a chessboard mode with a second direction as the reference, and the included angle between the first direction and the second direction is larger than 30 degrees and smaller than 60 degrees. Therefore, the phenomenon of uneven display can be avoided. 本发明提出一种光学组件，包括第一光学膜与第二光学膜。第一光学膜具有多个第一微结构，这些第一微结构以第一方向为基准呈现棋盘式排列。第二光学膜具有多个第二微结构，这些第二微结构以第二方向为基准呈现棋盘式排列，其中第一方向与第二方向之间的夹角大于30度且小于60度。藉此可以避免显示不均的现象。