Font that simulates the display cell phone Ericsson T29.
Originally it was two different font - normal and the inverted state of the display.
Later, it was decided to combine these two fonts in one set of characters and compiled to OpenType font.
The inverted state of the display, connected as alternative characters, in Stylistic Alternate feature( 'salt').
Font designed for short inscriptions.
Downloads OTF: http://otlab.ru/fonts/displayotf.html