Bitmap text blurry

I am displaying messages in my application.
The messages are produced in Photoshop and I am displaying them through Materials assigned to a plane.
Currently I am using png files for this.
The client is complaining that they are blurry and they do look a little pixelated.

This seems like a real newb question but …
Any suggestions to get clear crisp text on a full screen field?

This was pretty silly for someone with my experience.
Just got wrapped up in the problem and stuck on a method that was not so bright.

I have resolved the problem using 3D Text objects … duh …