Video Projectors and Lampless LED Technology
One traditional definition of home theater is that it includes a video projector and a display the size of a double garage door. For lots of fanatics, that meaning still holds true.
For those who choose the jumbo-screen format, that normally implies a projector capable of producing an image ranging from 70 to 200 inches (measured diagonally). Space lighting is critical, as screens are rinsed by stray light. A darkened room - feature of big theater atmosphere - is important.
Reproduction quality from high-grade projectors can be impressive, however the real news on the projector front is the development of LED "lampless" technology. High-intensity LEDs run cooler and are far more energy efficient than traditional projector lights, provide thousands of hours even more of useful life, and easily provide the extreme firepower should toss a clear, sharp image at a big screen.
Rates for a high-def 1080p projector variety from $1,000 to $3,000, and get upward of $10,000 at the very luxury. Include a retractable screen for $1,000 to $2,000, add a light-controlled viewing space and the cost of traditional home theater increases rapidly for a medium that's not necessarily conducive to relaxed television or streaming media viewing.