Sony took part at the 5th International FPD Expo that ended today in Tokyo, showcasing for the first time in their home market of Japan a 21-inch OLED that almost doubles the size of the XEL-1 (11 inches). Unlike the XEL-1, however, the 21-incher is still in prototype stage.

The new OLED boasts a resolution of 1,366×768 pixels and an incredible contrast ratio of 1 million to 1. Sony says the display isn’t even 1cm thick and did away with the navigation system style of the XEL-1 by integrating the stand and the bezel. While the screen itself produces gorgeous images, the whole apparatus still isn’t quite as sexy.

Take a look at the OLED prototype in the video below.