Difference Between HD and 3D Technology

In simple terms, High-Definition (HD) is video picture quality with considerably higher resolution than the traditional Standard-Definition (or SD). HD generally has about 1 to 2 million pixels per frame which is approximately 5 times compared to SD. Therefore, the picture is very high quality and sharp, as compared to SD technology.

3D technology on the other hand is another dimension altogether. When watching video in 3D format, the pictures seem to jump outside the screen giving it a real-life-like experience. 3D experience is achieved through a technique called Stereoscopy.

Let me explain, it's based on how the human eyes receive the input and the way the human brain processes it. The pupils of the human eye are about 6.5 cm (or 2.5 inches) apart, therefore each eye views a scene from a different angle and generates a unique image.

The brain then creates a single image by merging the images together. The slight difference between the image from the right eye and the image from the left eye allows the brain to judge the depth. This creates the 3D illusion.

There are different ways to create this illusion and that's where the different types of 3D technology comes in. Let's review 3 different types of 3D technology.

Photo: Wikipedia

A lot of consumers are fascinated with 3D technology, but are they ready to bring it into their homes yet? Well, let's consider the following factors:

The cost of upgrading is at least $2,500 which would include a 3D TV, a pair of 3D glasses and the 3D Blu-Ray DVD player. Bear in mind that 3D technology is still in its infancy as far as mainstream is concerned, so in the next 2 to 3 years, the technology will advance considerably and prices will start dropping.

There is not enough 3D content out there right now because the demand doesn't warrant it, however, the networks are ready to pick it up as the demand rises.

Enjoying 3D experience requires wearing 3D glasses, though there are some 3D TVs that don't require it. However, it will take a few years for these 3D TVs to be launched. It's a different thing to sit and watch a 2-hour movie with 3D glasses, but are consumers ready to embrace these glasses for normal day-to-day viewing?

Many consumers have only recently upgraded to HD technology and the quality enhancement is phenomenal compared to Standard-Definition.

From what I see, it will take at least a couple of years until 3D technology becomes mainstream. However, I believe that 3D technology will ultimately become a reality in people's living rooms...it's just a matter of time.

As for me, I'm pretty content with my HDTV at the moment and am in no rush to switch right away.

The screen size of your TV will depend on the viewing distance. For a comfortable viewing experience on high definition TVs, experts suggest using screen sizes as displayed in the HDTV Size Chart above.