The video projector has long been used as a presentation tool in business and commercial entertainment, as well as in some very high-end home theater systems. However, video projectors are becoming more available and affordable for the average consumer. Check out some useful tips before you buy your first video projector.
Types of Video Projectors
There are two major types of Video Projectors available: DLP (Digital Light Processing) and LCD (Liquid Crystal Display). In addition, other variants of LCD video projection technology in use are LCOS (Liquid Crystal on Silicon), D-ILA (Digital Imaging Light Amplification – developed and used by JVC) and SXRD (Silicon Crystal Reflective Display — developed and used by Sony).
An LCD video projector utilizes a light source that passes light through 3 LCD Chips (assigned to primary colors red, green, and blue) to create and project images. With LCOS/D-ILA, and SXRD projectors, the light source is reflected off the 3 LCD chips, instead of passing through them.
Lamps, LEDs, and Lasers
In addition to the core LCD or DLP technology that may be used in a video projector, another thing to take into consideration is whether the light source used in the projector is a lamp, LED, or Laser. All three options have their advantages and disadvantages.
Best Uses for a Video Projector
Home theater projectors are best for viewing Sports, DVDs, or Blu-ray Disc movies. If you watch mostly regular TV, an LCD/DLP projector may be an expensive option for most lamp-based video projectors as the bulb (light source) would need to be changed after about 3,000 to 4,000 hours of viewing, with some projectors now having upwards of 5,000 hours or more of bulb life. Compare that with an LCD or OLED TV which can last 60,000 hours or more, albeit with a smaller screen size. Also, make sure you have the proper room size for your projector.