Projection panel

A Projection panel (also called overhead display or LCD panel ) is a device that, although no longer in production, was used as a data projector is today.wikipedia
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Transparency (projection)

transparenciestransparencyacetate
The projection panel sits on the bed of the overhead projector, and acts like a piece of transparency.

Video projector

projectorsdigital projectorprojector
A Projection panel (also called overhead display or LCD panel ) is a device that, although no longer in production, was used as a data projector is today.

Overhead projector

OHPoverheadoverhead projectors
It works with an overhead projector.

Liquid-crystal display

LCDliquid crystal displayLCD screen
The panel consists of a translucent LCD, and a fan to keep it cool.

Video Graphics Array

VGAVGA graphicsVGA card
The panels have a VGA input, and sometimes Composite (RCA) and S-Video input.

Composite video

compositeCVBScomposite video signal
The panels have a VGA input, and sometimes Composite (RCA) and S-Video input.

S-Video

A/VS videoS-Video out
The panels have a VGA input, and sometimes Composite (RCA) and S-Video input.

Super VGA

SVGASVGA graphics800x600
Earlier models only had 640x480 resolution, while newer ones had up to SVGA resolution.

Wand

magic wandstaffmagical wand
Proxima, one maker of the panels, included a magic wand and sensor, which worked with the sensor detecting where you put the wand, to create and interactive effect, the equivalent of today's smart boards.

Smart Technologies

Smart BoardSmartboardSMART Boards
Proxima, one maker of the panels, included a magic wand and sensor, which worked with the sensor detecting where you put the wand, to create and interactive effect, the equivalent of today's smart boards.