Tech Insider – Blue Light reduction

One of the latest features for the new 5 Megapixel Displays is an integrated blue light reduction. The target was to improve ergonomics by reducing eye fatigue.

So how does this work and what is the issue about blue light?
First we need to understand what blue light is and what makes it different.

As you can see the Blue Light is at the bottom line of the light spectrum, directly above the invisible UV light. But this is not the major problem about blue light. Problem is the energy blue light contains. It is the highest in the visible spectrum. Due to this the human eye provides some special filters to protect the eye. This is related to the fact that blue light enters the retina of the eye very deep. Therefore, this could damage the structure of the eye.

What about the health aspect of this?
Currently studies point into the direction that a high amount of blue light could increase macular degeneration. This is still not safely proved but what is sure is that blue light got a negative influence on our sleep patterns. It also leads to eye discomfort and dryness and results in an increased tiredness.

Why is this just coming up?
One clear question is why this topic just recently comes up. The reason is the breakthrough of LED lightning and LED backlight. In the past CCFL had a spectrum which was containing not such an amount of blue light, but LED increased this spectrum a lot. But also, the way we use display devices, like smartphones and tablets, recently brought this topic up.

What is the solution?
In an office display configuration or on smartphones usually the color temperature is shifted. You could also reduce the display brightness. Both will reduce the blue light amount on an easy way. But of course, for a diagnostic display those are not suitable ways. In JVC case we work with dedicated filters inside the panel to reduce the blue light amount here. This ensure an unchanged image perception without the amount of blue light.