Screen calibration and new technology part 1

Different screen technologies

With technology changing at a very accelerated pace, screen technology is also changing. Some of the technology still with us is LED, LCD, DLP and LCoS in projectors, LCD/LED in flat screens. It was said that depending on what was mostly watched will dictate what the best screen technology was to use. As technology changes, we now only really have is LCD/LED, though other display technologies are still available like plasma at the time of writing this blog, as plasma is phased out, new technologies are always being developed.

A QUICK BACKGROUND

All previous technologies use gases and chemicals to create colours, but the newest screen type available at the moment is OLED, and to put it in its most basic form, the display use ‘organic’ components. Basically how it works is when electricity is applied to the organic component they start to glow, but as with all new technologies, there is drawback.

OLED, HOW IT BASICALLY WORKS

As OLED is the new kid on the block, we have found that there are some drawbacks to this technology, but it’s nothing that can be overcome with some TLC. By default OLED is a less efficient technology then others are in regards to light output. The colours used for most TV screens are usually red, green and blue, the primary colours. But to overcome the problems with light output from the display, current manufacturers have come up with very different solutions. LG, for example, has added a fourth colour being white to overcome this. Samsung still only uses RGB but have made certain pixels (the millions of little individual colour squares that make up your screen) physically different sizes. For example, the colour blue is not as efficient as the colour red so Samsung has made the colour blue pixel twice as big as the red colour and green is a tiny bit bigger than red as well. It was also said that the blue pixel over time would reduce in output, try finding this kind of information out from the retail stores.

Click here for part 2