Contrast with rear-projection TV. See data projector. Front-projection TVs can change their screen size by replacing the screen and moving the projector closer or farther away. In contrast ...

Rear projection TVs allowed for massive screens, by taking a CRT image (later ... but with regular front projection. However, as you can imagine, that was even less practical than something ...

A 180-degree angle means that there is no difference, which is fairly true for CRT and plasma screens. However, viewing angles differ between LCD and front and rear-projection screens. Horizontal ...