The term panel is widely used in the LCD manufacturing industry. See LCD. (3) An earlier type of data projection system that required an overhead projector. Also called a "projection panel," it ...

more recently, tom’s posted a follow-up with recommendations on flat panel monitors to use for such a project. also worth checking out is an alternative lcd projector design we talked about earlier.

[Joel] wanted a huge-screen TV on the cheap, so he converted an overhead projector to something he can use with his XBox. Using a bare LCD panel with an overhead projector is a decades-old hack ...