Samsung Display demonstrated an interesting new display at SID 2016, the Bio-Blue OLED. This display emits less blue light than a regular AMOLED - and thus should be healthier.

SDC bio-blue poster at SID 2016

In recent years we heard several researchers state that the extra blue light emitted from LED displays is not healthy - with connections to cancer, sleep problems and other diseases. OLEDs offer a better light emission in that regard compared to LCDs, but Samsung's new Bio-Blue displays are even better.

SDC bio-blue comparison at SID 2016

Samsung says that in a regular LCD, 66% of the light is in the blue spectrum. A regular OLED emits half the amount of blue light (32% of total emission) - while the Bio-Blue display emits only 6% blue light. The display still looked very good to me, and I think that without a reference display you will hardly notice a difference. It'll be interesting to see what Samsung aims to do with these displays (maybe offer healthier tablets for night-time reading?).

SDC bio-blue comparison spec at SID 2016

In October 2015 we posted an OLED Auditorium Lecture by National Tsing Hua University that describes the hazards of blue light and promotes the adoption of blue-light free OLEDs.



OLED photometrics issues

I have been a long time proponent of OLED lighting products to be used in Human centric lighting.

There is an industry wide concern about the physiological{hormonal} affects from Blue light emissions - But OLEDs have not been a part of the "problem" per se. The emission of red light in the 630 nm to 720 nm range is something that OLED lighting do very well - the problematic area for blue light emission is in the 450nm to 480 nm range. I wish Samsung would "phrase" the deficiency of blue light emissions from this OLED lighting in that range as an attribute - not necessarily done as a marketing gambit.

They could speak to how Amber OLED lighting is becoming an alluring HCL approach option- without painting blue light emissions as toxic or deleterious... It's just an oversimplification of things.


After all the crux of the issue is, what are the SPDs of the wares, how do those SPDs of the illuminance affect those living and working under that illumination - and at what time of day and factor in the "duration" of the exposure. I am all in favor of touting OLED lighting positives. But Sammi's marketing of this could use a more effective way to articulate the positives of OLEDs photometric traits.


Will adopt it to VR obviously

Will adopt it to VR obviously