When I entered the office, hovering over the coffee table in the center of the room was the head of a man to welcome me. I realized it was a video, but without a screen showing. The image is in the air emanating from the coffee table. This is just one example of the screen without a screen, but imagine sitting in your living room, turning on the decoder and his favorite movie is shown floating three feet in front of you through the use of optical technology. This new technology, along with others, is at the forefront in being able to see and interact with video images without the use of a screen.

The floating image described above was provided by a device created by IO2 Technology Heliodisplay called transforming normal ambient air and provides video images into free space. The system is about the size of a large computer tower turned on its size and its display of images allow unobtrusive, so video, pictures or advertisements can be placed in the air while the screen is hidden in a desk, table Coffee, pedestal or furniture. The interactive system is also similar to a virtual touchscreen. A hand or finger can act as a mouse for cursor control interactivity in a computer environment without the use of a special glove or pointing device. Just as using a mouse to move the cursor on a traditional computer screen, you can use your finger to move the cursor around the image Heliodisplay. This system precludes the use of a screen and instead uses a constant flow of air from the device to display the image appears to float in space.

Another approach in moving to TV without a screen is by using a thin curtain of dry fog that serves as a transparent projection screen, displaying images that literally float in the air with Fogscreen system. The result is surprising, demanding attention glasses - that's why FogScreen projection screen is used so often at product launches, trade shows, restaurants, nightclubs, museums, casinos and other places. While this technology has not found a more current and television, which has made great strides in the projection screen technology. We may find ourselves one day watching movies at home in our own system.

The greatest impact of non-display technology has been in the use of optical technology. Whether talking about VRD (Virtual Retinal Display), RSD (retinal scanning display) or LOE (light guide optical element), optical technology is being used by consumer electronics companies like Apple to the military and even care industry health. Optical technology allows staff without using the projection screen shows images and data from computers, DVD players or VCR on the viewer's eye, showing in the viewer's visual field. For example, Microvision Inc. created mounted helmet showing a tank commander of the Army can see around the top while still viewing a transparent map floats a few feet away.

There are consumer products that are available today that use this technology in iPod video glasses. The video glasses use two 24 bit color LCD to offer 320 SolidOptex x 240 resolution at a rate 50 to 60 Hz to give a vision that is roughly equivalent to the display screen 243 to about 6 feet away. This hands-free, personal experience watching iPod video is not very cheap but iPod glasses will cost about $ 200 each. Another example is the head up displays used in cars today in what may be his speed, addresses or other information display shows quietly to the driver. This technology not only serves as a replacement of the tubes used in our TVs, but to increase our security and performance in everyday life.