LCD gets the nod here specifically because the whole screen can be brighter, which is a function of its backlight. OLED can't do a full screen with as much brightness.

Casio has announced a new calculator called the fx-991EX that has a first for the industry, a spreadsheet function. The new calculator will launch in Q1 2015 and brings with it a high resolution LCD.

But that doesn’t mean cheating is impossible, it just requires considerably more effort, like upgrading a dumb Casio calculator with a secret screen, wifi, and even messaging functionality.

A quarter of a century after introducing the world's first graphing calculator, Casio has announced its next generation model that's been designed to deliver graphs and statistical data as they ...