Originally Posted by Wolftrail
Actually, vizplex is used when they mean the 1st generation. Although every e-ink techniq is vizplex. The 2nd generation is called Pearl e-ink.
And not only Sony used the 1st gen. and lots of manufacturers use Pearl the 2nd gen.
No, Viziplex (the screens were marketed under this name, I know it's a more generic term now) is 2nd gen and Pearl is 3rd gen. The Sony Libre & PRS-500 used a pre-Viziplex screen which would be 1st gen.