Reports from Korea suggest that Samsung still faces technology challenges before it can begin producing QD-OLED TVs

Samsung is developing its QD-OLED TV technology and the company was supposed to hold an investment review committee on April 2019 to decide whether to go ahead with plans to start production soon (mass production by the end of 2020).

QD-OLED stack scheme (DSCC, Oct-2018)

However in May we later reported that Samsung decided to delay the production - trial production will begin towards the end of 2020, with real mass production on a new 10-Gen line only at around 2023. A new report from Korea sheds some more light on Samsung's situation.

Asus demonstrates an OLED gaming laptop, still has concerns over lifetime and burn-in

Asus recently launched a new gaming laptop, the Zephyrus S GX502, which uses a 15.6" 4K 120Hz LCD IPS display. At Computex 2019 in Taiwan, Asus demonstrated one of these laptops with an 15.6" SDC AMOLED display.

Asus Zephyrus S GX502 OLED gaming laptop prototype photoAsus OLED laptop (left) vs LCD one (right)

Asus says it has no immediate plans to release an OLED gaming laptop as it still has concerns over the shorter lifespan of OLED displays, image retention (burn-in) and long-term color accuracy. As soon as these concerns are resolved, Asus says it will push forward with incorporating OLED panels in gaming laptops.

IGNIS demonstrates how its compensation technology can remove burn-in signs from automotive AMOLED panels

IGNIS Innovation published the following interesting video that shows how its compensation technology can remove the visible signs of pixel aging:

IGNIS tells us that this is a 12" LTPS automotive AMOLED panel. The company tested it for 1,000 hours at 85 degrees Celsius - to make sure the company's compensation technology can remove all signs of burn-in patterns. IGNIS's Max Life technology combines a functional in-pixel compensation pixel circuit with a sensing line and the company's current measurement driver chip that can perform external compensation.

Nanosys expects to show working emissive QD-LED displays by the end of 2019

HDTVTest posted an interesting interview with Cadmium-Free QD developer Nanosys CEO and president Jason Hartlove. In this long interview Jason discusses the company's technology and recent achievements.

Jason reveals that the company is working on emissive Quantum Dots displays - and he expects to have a full-color monitor-size QLED display prototype ready by the end of 2019. Jason says that they hope to show these display prototypes in private demos at CES 2020.

Rtings.com tests show serious burn-in in LG's OLED TVs after only 4,000 hours of use

Review web site Rtings.com has performed an extensive burn-in trial for LG's 2017 OLEDC7 OLED TV models, and reports that the TVs have shown signs of permanent image-retention, or burn-in after only 4,000 hours.

Rtings have used six OLED TVs, running them from January 2018 for 5 hours each day at a time followed by one hour when the TVs are turned off. This cycle was run 4 times a day. One TV was at maximum brightness, and the rest at only 200 nits. Some played CNN, some a gaming title (FIFA 2018) and some of the TVs played regular TV channels. The TV that played CNN had a clear logo and static bar burn-in images, and the same goes for the FIFA game (but only slightly). The regular TV programs did not suffer from any burn-in.

LG replaces the OLED TV at Incheon airport to an LCD due to burn-in issues

Only four months after LG installed 69 OLED TVs at Seoul's Incheon Airport it was reported that the TVs suffer serious permanent image-retention, or burn-in. ZDNet now reports that LG replaced the problematic OLED TVs at the airport's Korean Air Miler Club Lounge with LCDs.

LG OLED TV at Incheon airport - burn-in photo

The report suggests that LG was not sure it could solve the burn-in issues with this particular display, and so opted for an LCD. LG denies that burn-in is a serious issues and says the TVs's lifetime are over 30,000 hours.

ZDNet: LG's OLED TVs at Incheon airport suffer from serious burn-in

According to a ZDNet report, the LG OLED TVs at Incheon Airport, installed only a few months ago, suffer from serious permanent image-retention, or burn-in. You can see the artifact at the top part of the TV in the photo below:

LG OLED TV at Incheon airport - burn-in photo

According to ZDNet, LG installed 29 such OLED TVs at the airport lobby in addition to 40 more units at four of the airport's lounges. These were installed in January 2018, only four months ago. LG Electronics did not comment on this story.

Apple's iPhone wins burn-in test over Samsung's flagship OLED phones

Korea's Cetizen posted an interesting review of the burn-in of 3 flagship OLED phones, the iPhone X, the S7 Edge and the Note 8. Cetizen displayed the same image on all three phones for 510 hours (!) at full brightness.

Cetizen OLED burn-in test (iPhone X, Note 8, S7 Edge)

As you can see in the image above, the Note 8 has very visible burn-in, while the two other phones perform better. Cetizen say that the iPhone has the best display in that regard. Apple did in fact confirm that the iPhone X suffers from burn in, but also said that it engineered the display to be the best in the industry in reducing the effect of OLED burn-in, though - and apparently this engineering works.

Apple admits that burn-in could occur in the iPhone X OLED

Following the launch of LG's pOLED displays, we had many recent discussions and reports of OLED burn-in and Image-Retention. Apple now released a support document for the iPhone X, its first OLED phones, in which it warns users that “image persistence” or “burn-in” is an "expected behavior".

Apple iPhone X side photo

Apple says it engineered the display to be the best in the industry in reducing the effect of OLED burn-in, though. Apple also says that its OLED could have noticeable but slight shifts in color and hue when seen off-angle. The iPhone X has a 5.8" 1125x2436 Samsung-made Super AMOLED display.

Google responds to user complains on the Pixel 2 XL display

Google started shipping its Pixel 2 XL smartphone a few weeks ago, and this is one of the first two phones to adopt LG Display's new 6" 1440x2880 (538 PPI) pOLEDs. While on paper these displays are superb, actual reviews were rather dismal - to the point that some reviewers say that these are simply "bad displays".

Google Pixel 2 XL photo

Both reviewers and customers complain about bad color reproduction, graininess and problematic viewing angles. In addition many users seem to report serious image retention issues. Google has now posted an update regarding the Pixel 2 XL display.

Cambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDsCambridge Isotope Laboratories - Deutreated Reagents and High-Purity Gases for OLEDs