Smart Home Big Screen Entertainment!

  • Resolution — Like your TV, projectors offer resolution options like 720p, 1080p and 4k. The higher the number, the more pixels condensed into your viewing space and the sharper the image.
  • Lumens — Another critical factor is how bright the projection is. A brighter image is less likely to be washed out by other light sources like lamps or uncovered windows. Brightness is measured in lumens; the higher the number of lumens, the brighter and stronger your projection will be.
  • Contrast Ratio — Similarly, the contrast ratio illustrates how big a difference there is between the light and dark of your image and is usually measured in white to black parts (e.g., 20,000:1). A higher contrast ratio means whiter whites, blacker blacks, and a more impactful image. Contrast can be enhanced with a dynamic iris, which opens or closes depending on the amount of light an image requires.
  • Color Gamut/Coverage — Color gamut (or coverage) is the number of colors the projector can display. More colors mean more accurate, higher-quality pictures.
  • Autofocus — Some projectors come with built-in autofocus, which adjusts and sharpens your image. Others require you to focus the image manually.
  • Keystone Adjustment — As a projector is rarely dead-center with the surface it is projecting onto, you need to square the image off, so it isn’t thin at one end, broad at the other, and distorted all-round. This is where the keystone comes in, it allows you to square off the image and compensate for your projection angle. Some projectors have automatic keystones.
  • LED Bulb — The most common way to project an image is with an LED bulb, which does a perfectly fine job. You can get 4k, 4000 lumens LED projectors. However, the bulbs run hotter and emit more noise than the bulbs in laser projectors. They don’t last as long either and may need to be replaced if you have a projector for a few years.
  • Laser Projectors tend to be more expensive, but the extra cost comes with some benefits. The bulbs last a lot longer and are unlikely to be the first part of the projector that fails. Laser projectors don’t get as hot as LED bulbs, so there should be less fan noise and a shorter cooling-off period. They can also provide brighter, sharper images with better colors than LEDs.
  • Throw Distance — To put it simply, the throw distance is how far back the projector needs to be from the surface it is projecting on. Long-throw distances can be over nine feet away from the screen or wall, short-throw projectors settle somewhere between three and eight feet, while ultra-short-throw projectors can be just inches from the surface they are projecting onto. This doesn’t mean a long-throw projector has to be 12 feet away or it won’t work, you can move it a few feet closer, but the image it is projecting will be smaller.
  • Input Lag — Input lag or latency is the time between a projector receiving a piece of video and actually displaying it. This isn’t an issue with most applications but can have a massive impact on video game performance and is a reason why projectors were, until relatively recently, a less than ideal choice for video games. Specialist gaming projectors have since hit the market, some of which claim to have latency on par with high-end TVs.



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Tod Caflisch

Tod Caflisch

Smart Home technology visionary with passion for out of the box solutions for home technology integrations, focusing on efficiency, safety and sustainability.