Motorola cordless phone - can't read the screen

Is the screen a LCD? These screens are difficult to read and only by changing the viewing angle makes it visible. If the screen has completely become black or all the numbers look like 8's? Since you've already replaced the batteries,eliminating all electrical malfunction my instinct is of the leakage of liquid in LCD screens( remember the old calculators, and how it responded if the screen was pressed hard). In that case the entire display screen will have to be changed. If it isn't cost-effective, I guess instead of attempting repair--------- get a new phone.........sodeep