Sort By: Post Date | Title | Publish Date
Geoffrey Morrison Posted: Oct 28, 2005 Published: Aug 28, 2005 0 comments
Putting the theory to the test.

In my GearWorks column in our January 2005 issue, I talked about how, depending on your viewing distance, the resolution of your display may not matter. To sum up, your eye has a finite resolution (like a digital camera), and, as objects get smaller with distance, there is a point where your eye can no longer distinguish between bigger and smaller pixels. Over long distances, this is obvious, but it surprised a lot of people that it could be so noticeable in shorter (in-room) distances.

Filed under
Geoffrey Morrison Posted: Feb 03, 2012 0 comments

Did you read that headline in Seinfeld's voice? While contrast ratio, black level, and light output all rightly occupy the top of the list of specs one considers when purchasing a new display, color is often completely overlooked.

Good color reproduction usually won't make or break a display, but it can make one that's good into one that's great.

Yet for all its importance, it's rarely understood - and it's regularly done wrong.

Geoffrey Morrison Posted: Jul 24, 2006 0 comments
Bring on the diodes.

Bulbs are so 20th century. You can gussy them up, charge a bunch of money for them, even call them fancy names (lamps), but the fact of the matter is, they're still basically light bulbs. Almost all new RPTVs and front projectors use UHP (ultrahigh pressure) lamps to create light. These lamps are fairly efficient for the light they put out but are very hot, costly, and don't last very long. One new technology that's aiming to replace the UHP monopoly is LED, or light-emitting diode.

Geoffrey Morrison Posted: Sep 18, 2006 0 comments
Lasers: They're not just for guns anymore.

If there is one thing that just screams "future" to me, it's lasers. Sure, they've been around since the 1960s, but come on—it's lasers! Right now, they can be found in your CD and DVD players, but a few companies are hoping to put them in your TV, as well.

Filed under
Geoffrey Morrison Posted: Feb 08, 2007 Published: Feb 09, 2007 0 comments
Yet another way your TV is obsolete, sort of.

If you scoured all of the details on the recent HDMI 1.3 release (and who didn't?), you may have noticed the inclusion of xvYCC and Deep Color. These are two different things that together will theoretically make displays' color more realistic. The short version is this: Deep Color increases the available bit depth for each color component, while xvYCC expands the overall color gamut. Sure they do, but why?

Filed under
Peter Putman Posted: Feb 08, 2007 Published: Feb 09, 2007 0 comments
There's a whole lot of stuff that makes up a digital TV signal. Here's a primer on how it works.

In the beginning, there was analog television. You aimed the antenna, tuned in the channel, and then sat back to watch as the amplitude-modulated pictures flashed on the TV screen and the frequency-modulated audio blared forth from the speakers. Some time later, analog TV added color by shoehorning in a small signal with the necessary information amongst those amplitude- and frequency-modulated pictures and sounds.

Filed under
Peter Putman Posted: Feb 02, 2009 0 comments
How time flies. It seems like we’ve been talking about the transition to digital terrestrial television broadcasting forever—waiting for stations to light up the transmitters, watching as more and more high-definition programming appeared on our TV screens, and shopping for a new flat-screen HDTV for our family rooms.