High definition (HD) is rapidly replacing standard definition (SD) when projecting PPT slides, photos, or videos at special events. Why? As with any technology, improvements continue to be made and eventually old standards make way for new ones. (Remember the pre-historic vinyl record transformed into the cassette, CD, DVD, Blue-ray, and now streaming media!) HD is superior to SD since it takes advantage of new digital technology to deliver a sharper, clearer picture. You probably have an HD television set in your own home for that very reason.
Still, Standard Definition has been around for the past 10 years. It’s fine for projecting images on large screens, provided the images are high res, of course. But we all know that once new technology has gained a foothold in the marketplace, the older technology is phased out. Transitioning to HD is well underway, and within a year or two A/V equipment will only be offered in High Definition.
For the time being though, we still have an option to do either HD or SD presentations. Therefore, it pays to know at least the basics of what the differences are between the two formats.
- High Definition signals carry much more picture data making the picture much clearer.
- Pixel Lines: Pixel lines carry the picture information across your screen. Standard definition is limited to 480 lines per screen, while High Definition can support 720 and 1080 lines. High definition has more pixel lines so the picture has much higher resolution.
- High definition equipment is the latest technology so the cost is higher than current Standard Definition equipment. How much higher depends on many factors so please inquire for specifics
Now that everyone is used to High Definition presentations, they’ll be expecting it at your next special event. Let us help you decide if and when the transition from SD to HD is right for you.