Dot-matrix display

[1] The display consists of a dot matrix of lights or mechanical indicators arranged in a rectangular configuration (other shapes are also possible, although not common) such that by switching on or off selected dots, text or graphics can be displayed.

The dot-matrix display is also known by the obsolete term “punktmatrix display”[citation needed] (German for dot-matrix) due to the dot matrix being created in Germany by Rudolf Hell in 1925.

In September 1977, the US Army wrote up a form to the Westinghouse Research and Development Center requesting a more effective energy source that soldiers could use in their technology in the field.

[2] Japan and America were using the LCD matrices to develop Casio TVs from 1984 to 2000 creating and experimenting with different display setups.

[4] In the 1980s and 1990s, dot-matrix displays were introduced into several technologies including televisions, computers, video game systems, and pinball machines.