OLED-Info: the OLED experts

OLED-Info has been the leading international OLED publication for over 10 years, with a readership of more than 120,000 professionals a month. We provide a multitude of services to the OLED market based on our extensive and up-to-date knowledge hub and close ties with industry leaders. Our consultancy services include market outreach assistance, display brokerage, business development, financial intermediation and more.

An OLED uses organic semiconductors to create thin light emitting panels. OLEDs are used to create thin, beautiful, flexible and efficient display and lighting panels, and are the future technology of choice.

Recent OLED News

Some of Google's Pixel 2 XL P-OLED displays are better than originally reported

Google 's Pixel 2 XL (which started shipping in October 2017) is one of the first two phones to adopt LG Display's new 6" 1440x2880 (538 PPI) P-OLEDs (alongside with LG's own V30). While on paper these displays are superb, actual reviews were rather dismal - as both reviewers and customers complained about bad color reproduction, graininess and problematic viewing angles. In addition many users seem to report serious image retention issues.

According to reports in 2017, LGD faced very low yields at its 6-Gen E5 line, and so had to produce these smartphone displays at its Gen-4.5 flexible AMOLED line. Some users are now saying that these issues do not plague all of Google's phone - and some come with noticeable better displays. This should be good news for LGD and it's likely that as the company gains more experience with smartphone P-OLED production, it will produce better looking displays in better yields.

Sharp confirms its plans to start producing OLED in Q1 2018

Last week we posted on reports from Japan that claims that Sharp aims to begin commercial production of flexible OLED displays for its own smartphones in the spring. Sharp's CEO today confirmed these reports, saying that Sharp will commence production in Q1 2018 and will introduce its new OLED smartphones in June or July of 2018.

Sharp 3.4'' flexible IGZO OLED prototype (Apr 2016)

In October 2016 Sharp announced that it will invest $570 million and build OLED pilot lines at its plants in Osaka and in the Mie Prefecture, with plans to begin (pilot) production in the summer of 2018. If Sharp will indeed begin production by the end of March, it is quite ahead of schedule - although of course it remain to be seen whether they will be able to reach satisfactory yields before the summer.

Business Korea: Mercedes to adopt LGD's flexible OLED displays in 2022

In 2016 it was reported that Mercedes signed an agreement with LG Display to supply its 12.3" FHD flexible P-OLED displays for a future E-Class automobile. Business Korea now claims that LGD is indeed jointly developing specific OLEDs for future Mercedes cars, and the plan is to launch these in 2022.

LGD 12.3'' P-OLED automotive concept

LGD is already supply Mercedes with displays for its cars - but these are LCDs and not OLEDs (it also supplies these LCDs to other car makers, including Toyota, GM and Hyundai). LG Display is also supplying Mercedes with OLED lighting panels for its 2018 S-Class Coupe and Convertible.

Pulse-width modulation (PWM) in OLED displays

Pulse-Width Modulation, or PWM, is one of the ways display makers can use to adjust the display's brightness. PWM is considered to be an easy (or cost-effective) way to control the brightness, but it has serious drawbacks, such as flicker that may cause eye strain and headaches. In this article we'll discuss PWM and its effects on OLED displays.

Display PWM duty cycles

PWM basics

PWM is easiest to understand in displays that use backlight, like LCDs. In LCDs that use PWM, the backlight is always on at its fullest brightness. If you want to achieve a lower brightness, you turn the display on and off in a very high frequency. This frequency is not perceived by the human eye, which usually sees anything that flickers faster than about 60Hz (60 times per seconds) as consistent. Some people, however, are much more sensitive to flicker.

Skyworth demonstrates a flexible OLED bracelet at CES 2018

Last week we posted about Skyworth's CES booth, where the company reportedly demonstrated new household appliances that utilize flexible AMOLED displays. It turns out that Skyworth also unveiled a smart bracelet that utilizes a flexible OLED

Skyworth flexible OLED bracelet-prototype (CES 2018)

This seems to be a very early prototype device, as the engineering is crude and it appears just to show an image - but still it is nice to see companies testing flexible OLED based designs.

New OLED gadget: Skagen Falster

The Skagen (owned by Fossil) Falster is an Android Wear 2.0 smartphone that features a round AMOLED display (probably 1.4-inch) and Qualcomm's Snapdragon Wear 2100 chipset. It supports Android and iOS devices via Bluetooth (but lacks a GPS and mobile connectivity).

Skagen Falster photo

The Skagen Falster will launch by the end of January 2017 for $275 - $295.