After reading a entry on my friend Dick Kusleika's blog about pixilation I was compelled to construct this example. 

The responses he received to his follow-up blog entry were a pleasant surprise

The display is constructed from a standard xy chart. All of the chart data is calculated via worksheet formula. The displays movement is manually controlled through a scrollbar, although I have included a vba routine that can be copied to a code module and used to automate the scrolling.

You can also construct you own typeface via the Alphabet worksheet. The example below shows how the letter A was defined.

Dot matrix display workbook