For very large projection, such as in movie theaters and auditoriums, a more sophisticated system uses three DMD chips, one for each color, plus an optical prism.

• 对于非常大的投影，如电影院和大礼堂中的投影，系统更复杂一些，采用三个DMD芯片，一个芯片对应一种颜色，外加一个光学棱镜。