Terms that just won’t go away!


We have moved on since the 80s and 90s and left terms such as Betamax and S-Video languishing in museums (http://www.obsoletemedia.org/).

Underscan and Overscan still crop up, however, in monitor specs. These terms have their roots in old analogue television, when using CRTs or Cathode Ray Tube monitors and TV sets. Due to the way the electron gun worked inside the old TV tube part of the outside edge of the image was intentionally cropped as it was not the same image quality.

The whole ‘colour safe’ image area was seen on old consumer TVs minus the outside Overscan edge. This is where the old CRT glass curved and the image reproduction was not as reliable on analogue TVs. The cropped Overscan edge was not seen on consumer TVs – so roughly 5% was hidden.

Underscan - When the aspect ratio of a monitor does not match the video displayed either black bars or black columns are shown. An example being a 4:3 image on a HD 16:9 screen usually produces black columns to the left and right of the video. This will also affect where titles are placed.

The Titles safe area is 5% smaller than the main image displayed. If kept within the Titles safe area, titles and credits should not be cut off at the sides of the image regardless of which monitor is used.

Thankfully Underscan and Overscan are terms that will eventually die out, as within HDTV and 4K displays the Overscan area is now just as good so production teams tend to use the whole camera image for live broadcasts.

Features such as resolution, overlays, scopes and waveforms are now a better way to recognise today’s professional studio HD and 4K monitors.

Overscan
Underscan
Titles safe area

For more information on these products please call us or follow the links below.

Blackmagic Design SmartScope Duo 4K
Blackmagic Design SmartScope Duo 4K

Dual 8" 6G-SDI monitors with waveform analysis

Blackmagic Design SmartView 4K
Blackmagic Design SmartView 4K

15.6" 4K monitor with 12G-SDI

Datavideo TLM-102
Datavideo TLM-102

Dual 10" Monitor

Datavideo TLM-170L
Datavideo TLM-170L

Desktop 17.3" 3G-SDI Full HD LCD Monitor

Datavideo TLM-170LM
Datavideo TLM-170LM

Foldable 1U Rackmount 17.3" 3G-SDI Full HD LCD Monitor

Datavideo TLM-170LR
Datavideo TLM-170LR

7U Rackmount 17.3" 3G-SDI Full HD LCD Monitor

Datavideo TLM-170P
Datavideo TLM-170P

17.3" HD/SD TFT LCD Monitor

Datavideo TLM-170PM
Datavideo TLM-170PM

17.3 full HD fold-out monitor

Datavideo TLM-170PR
Datavideo TLM-170PR

17.3" full HD rack-mount monitor

Panasonic BT-4LH310
Panasonic BT-4LH310

31" Native 4K LCD Production Monitor

SmallHD 1303 HDR
SmallHD 1303 HDR

Full HD 13-inch LCD Monitor with 1500 NITs Brightness

SmallHD 1303 HDR Production Monitor Kit - Gold Mount
SmallHD 1303 HDR Production Monitor Kit - Gold Mount

Full HD 13-inch LCD Monitor with 1500 NITs Brightness - Gold Mount Kit

SmallHD 1303 HDR Production Monitor Kit - V Mount
SmallHD 1303 HDR Production Monitor Kit - V Mount

Full HD 13-inch LCD Monitor with 1500 NITs Brightness - V Mount Kit

SmallHD 1303 Studio
SmallHD 1303 Studio

Full HD 13-inch LCD Monitor with 400 NITs Brightness

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