Everdisplay developed a 6" 4K AMOLED display - achieving 734 PPI. This is the first 4K 6" AMOLED prototype to be demonstrated. Everdisplay says that emerging applications such as virtual reality will demand such high-resolution displays.

Everdisplay 6'' 4K AMOLED prototype photo (August 2015)

Everdisplay started mass producing 5" 720p AMOLED displays towards the end of 2014. The company is also developing 5.5" and 6" panels for mobile devices, a 1.4" 400x400 circular AMOLED for the wearable market and an 8" AMOLED for the automobile market.

The world's highest density display in production is Sharp's 5.5" 4K IGZO LCD display (2160x3840) - that achieves 806 PPI. The highest density AMOLED in production is SDC's 5.1" QHD (577 PPI) Super AMOLED.

In November 2014, Japan's SEL demonstrated a 2.8" 2560x1440 panel - that reaches a PPI of 1058! This is just a prototype panel at this stage, and is based on SEL's CAAS-OS (C-Axis Aligned Crystalline Oxide Semiconductor) backplane, and a WRGB structure.



Last month Samsung Display launched a new project to develop the world's first 11K mobile display, that will achieve 2250 PPI(!). The Korean government will support this five-year project with a $26.5 million grant. Samsung explains that this "super dimension" display will enable an "optical illusion" that will enable 3D images.

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EDO

If EDO has been making 6000,000 5" AMOLED panels a month since Nov 2014,what are they doing with them ? What products are using them?

I do not know exactly, but

I do not know exactly, but back in Nov 2014 the company said they already achieved a design win with a Chinese mobile phone maker.

Resolution

VR needs to be atleast 4K .. global update, high refresh rate and maybe high-dynamic range too... without that the first wave of VR devices will be slightly lackluster...

and what about making micro-OLEDS that? The current VR HMD's (HTC Vive, Oculus) are too big and bulky.. they need to get smaller - more like typical glasses or darkened glasses for guys who use oxy-acetylene to cut metal :)

Genius up here.

Gosh you sound like a real expert. The first round of consumer VR devices will surely fail because you've said so.

fabrication method

Any info how they achieved such a high pixel density? It's my understanding that shadow masking can't pattern features small enough for this ppi. 

It's extremely hard to

It's extremely hard to achieve wide FOV using a microdisplay. A few years ago it was basically impossible, but thanks to some technological advancements there are some new ways to get it wider, but still not as wide as in Oculus/Vive yet.

Derek...

Slightly lackluster means failing? What comment have you been reading Bob?

Emagin company

they claim they already have a 100 degree diagonal micro-oled prototype.. I'd say that's pretty on par with Oculus/Vive.. the thing is not many companies and researchers have been involved in large FOV optics research so we might have even more advances very soon.. as a matter of 

OLED ppi

HMZ-T1, 2011, panel type OLED made by Sony Nagoya, 0,7inch@720p. 2098ppi. Also viewfinders for camera @0.5inch

Yes, OLED microdisplays

Yes, OLED microdisplays achieve a super high density... but it is not really fair to compare them to mobile-phone sized displays, the technology and applications are quite different.