I think this is a first for PC monitors or TVs. It could help with the fingerprint problem and with making frequent gestures quicker to do. From Sony’s press release:
Unique to the L Series, the multi-touch screen features technology which extends the touchable area of the screen to the LCD bezel. This technology provides simple access to everyday shortcuts enabling users to close windows, flip through web pages quickly and zoom by touching the black glass sections along the edge of the PC.