PLS versus IPS
The displays of the two tablets are also different, albeit subtly so. The Toshiba AT300 has an IPS panel (In-Plane Switching) while the Samsung Galaxy Tab 2 10.1 comes with an PLS panel (Plane-to-Line Switching). The latter is also used in the original Galaxy Tab 10.1. PLS can be seen as Samsung's answer to LG's IPS panels. The differences are difficult to see objectively. If you look at the subpixels through a microscope, you'd have to be well-versed in display technologies to distinguish one from the other. Samsung claims that PLS is 10 percent brighter than IPS, but our measurements tell a different story. The Galaxy Tab 2 and the AT300 have about the same brightness, 317 and 315 candela per square metre, respectively. That's not bad, even though we've measured higher scores on other displays.
What does stand out with Samsung's display is that there barely is any loss of contrast at different viewing angles, while the Toshiba screen does suffer from this. The Samsung screen also seems to be a hair sharper. This isn't necessarily because Samsung uses a different technology. It's not very difficult to find IPS displays that match the display in the Samsung tablet in terms of colour reproduction and viewing anges. It appears that the IPS screen in the Toshiba tablet just isn't of the highest quality.