As we enter the era of the fourth industrial revolution, technology is developing gradually, but the environment is getting sick. The air, soil, and water quality are becoming increasingly polluted and there is a flood of non-recyclable waste. Like a banner hanging on the street. Many banners printed in chemical ink and toner are difficult to recycle in materials that are not environmental at all. And the damage and environmental pollution are producing more than you can imagine. TLED is an ultra-lightweight wireless transparent LED display developed with innovative technology. After installation, you only need to make changes, so you can use them semi-permanently. It can be used as a new concept for digital signage and also as a media facade. It is possible. It is a low-power, low-carbon emission product and is eco-friendly because of its energy efficiency. It can be used as Sky Media and Water Media by adding wireless and waterproof functions.