Takahiro Matsuo's media art project at Tenjin IMS, Hakata, Japan. Those installations are available until 25 December 2011.
This art work is based on a novel material developed by Mitsubishi Kagaku Media Corp, which is widely known as Verbatim brand in recording media industry. This material, named VELVE (TM), is a fully-programmable color-varying electroluminescence (EL) sheet. It also has advantage in power consumption to conventional ELs; the VELVE won't generate much heat so that you can sit on top of it.