This approach improves the deficiencies observed with transparent LCDs and OLEDs, such as high cost, difficulty of scaling in size, and delicate maintenance. The MIT research is being commercialized by a startup company, Lux Labs, Inc. A head-mounted display projects images onto a transparent screen, allowing its user to see through the display. See-through screens are an emerging market that have several potential uses. Cell phones, tablets and other devices are starting to use this technology. It has an appealing appearance but more importantly it is also effective for augmented reality applications. The device can add its own twist to what is behind the screen. For example, if you look through a tablet with a see-through display at a street, the device could overlay the name of the street onto the screen. It could be similar to Google street view, except in real time. For example, Google Translate has a feature that allows the user to point the camera at a sign or writing in another language and it automatically displays the same view, but with the writing in the language of your choosing. This could be possible with see-through displays as well. A device using a transparent display will have much higher resolution and will display much more realistic augmented reality than video augmented reality, which takes video, adds its own supplement to it, and then displays that onto the screen. It could be simpler to display the addition onto the see-through screen instead. The Microsoft HoloLens is an application of this idea. These displays are also used in shopping windows. The shopping windows show the product on the inside as well as show text or advertisements on the glass. This type of showcase is becoming more popular as see-through screens are becoming cheaper and more available. A transparent LED display can be used by stage designers and event producers to realize creative holographic-like visual effects.  11.https://www.sparkfun.com/products/15079