Hello. There are several of special Font ROM IC's, which contain a lot of bitmap fonts. For example, GT21L16T1W contains ASCII letters in 5x7,7x8,6x12,8x16, as well as 12x12 and 16x16 pixel copies of arial font. Not to mention several thousands of greek, cyrillic, chinese and japanese fonts.
So using such IC should be a lot of memory saver for your products and reducing load to main CPU.

Anyone ever tried?