Samsung claims an industry first with its Galaxy Tab S displays; these are the largest Super active-matrix organic LED (Super AMOLED) screens ever produced. And they are super; images are bright, colors are vivid and seem to jump off the screen. Samsung characterizes the AMOLED panel as "super" because the digitizing layer is built in. And because it uses fewer filtering layers than most other panels, the AMOLED panel allows more backlight to penetrate for better contrast, improved outdoor viewing and blacker blacks. Both GST models pack an impressive 2,560-x-1,600 pixels. That's a pixel density of 287 ppi for the 10.5-inch unit and 360 ppi for the 8.4-inch model.