I know exactly what you mean. I have several Nokia 8225s in operation and one of my subscribers has had trouble seeing his display. Not that this suggestion is going to be a complete fix, but it sure can help.
If you program your list of phone numbers you always use, (I guess its called the phonebook or address book), anyway I'm sure you know what I am refering to,
USE ALL CAPITAL LETTERS. That way, at least, when you recieve a call from someone you have listed their NAME will display in a much more READABLE FORMAT.
On the NOKIA phones I am familiar with after you type the FIRST LETTER of a name, which automatically displays as a CAPITAL LETTER, if you press the "UP ARROW KEY," your letters will then remain in CAPITAL FORMAT.
Should you wish for more phone variety info, please repost here, and I will do some research on different brands. Because I have a group of friends I carry phone service for, I've researched phone alot.
Additionally, Nokia, has a world website and your local provider should have an answer for your very question.
I never wave a flag for a cell provider, but a hugh selection of many different brands is available through Verizon, and even if you do not have service with them, they are pretty darn nice about answering questions.
If you choose to call them, I would bring up their website <http://www.verizon.com>,
find their list of phones on the site, and then with the website displayed, call them on their 800 #.
If you have difficulty accomplishing this, I'll be glad to do it for you. Just repost here and I'll send contact info.
There are phones who had settings to display two different sets of type, although I have never seen it on a Nokia. Motorola has two settings. I like to call them "microscopic" and "small."
You bring up a point, which I have always wondered about