OLED as thin as ham slice, LiFi (Light Fidelity) and Internet of Things Lighting, those are now hot spot issue in LED Lighting industry. However on technical side of LED Area Light , from laboratory to trade fair and finally to large scale LED lighting application, there are long gaps between them. And what’s needed in between, is the imbedding of possibilities for lamp mass production, possibilities of wide application and business model, and finally it depends on the reform of lifestyle.Cinema light guiding may sounds good. But what is the cost for it? And can it really replace the existing market share of indicator strip light?The best product is useless without a suitable market for it. Don’t forget that OLED of LG has been displayed two years ago in Frankfurt, but now nothing seems to have changed.As for false need of LED Lights , this is not the biggest doubtful trend in the Frankfurt fair this year since it returns back a little.