Article last updated on: Aug 25, 2019

OLED is an emerging display technology that enables beautiful and efficient displays and lighting panels. OLEDs are already being used in many mobile devices and TVs, and the next generation of these panels will be flexible and bendable.

Different kinds of flexibility

When we talk about flexible OLEDs, it's important to understand what that means exactly. A flexible OLED is based on a flexible substrate which can be either plastic, metal or flexible glass. The plastic and metal panels will be light, thin and very durable - in fact they will be virtually shatter-proof.

The first range of devices that use flexible OLED displays are not really flexible from the user perspective. The device maker bends the displays, or curves it - but the final user is not able to actually bend the device. These first-gen flexible OLEDs are adopted many premium smartphones, for example the Samsung edge-type Galaxy phones or Apple's iPhone X and Xs. Besides the beautiful designs, a flexible OLED has several advantages especially in mobile devices - the displays are lighter, thinner and more durable compared to glass based displays.

Second generation flexible OLED displays can be bent by the user - these can be used for example to create foldable smartphones - the first range of which are expected to hit the market by the end of 2019.



The latest flexible OLED news:

Will the Samsung Galaxy M41 use a CSoT flexible AMOLED panel?

In 2019, it was reported that Samsung Electronics is in early talks with China's CSoT for flexible OLED supply for low-end and mid-tier smartphones. According to a new report from Korea, Samsung Electronics has decided to adopt a CSoT flexible OLED panel for its upcoming budget Galaxy M41 smartphone.

Motorola Edge photo

Motorola Edge

If true, this is the first time that Samsung Electronics will adopt an OLED that wasn't produced by Samsung Display. The M41 will use a 6.67-inch 1080x2340 AMOLED, the same panel used in Xiaomi's Mi 10 and Motorola's Edge.

DDaily: BOE failed to pass Samsung's and Apple's OLED quality tests

Earlier this year, reports from Korea suggested that Samsung Electronics is looking to order some OLED panels from China's BOE - including for its flagship S21 smartphone to be announced later this year.

Samsung Galaxy S20 lineup

A new report from Korea's DDaily suggests that BOE failed to pass Samsung's display quality test. Samsung Electronics is likely to retain Samsung Display (partly owned by SE) as an exclusive AMOLED supplier for its 2020-2021 smartphones.

Researchers fabricate an efficient flexible OLED that uses Mxene electrodes

Researchers from Seoul National University developed a flexible green OLED device that uses 2D titanium carbide MXene as a flexible and transparent electrode. The display achieved an efficiency of 100 cd/A, comparable to ITO-based devices, while showing good bending stability.

The researchers say that the MXene electrodes are much more flexible than ITO electrodes and this material could hold the key towards highly flexible transparent conductive display electrodes.

DSCC details the iPhone 12 screens and OLED suppliers

DSCC posted an interesting blog post, in which they detail what they believe to be Apple's iPhone 12 smartphone family specifications.

Apple iPhone 12 range - specs and OLED suppliers (DSCC May 2020)

So we start with the iPhone 12, which will use a 5.42" 2348x1048 (476 PPI) flexible AMOLED display, produced by Samsung Display. DSCC believes the iPhone 12 will use a Y-OCTA integrated touch. DSCC believes that while BOE did not manage to get its panel to the iPhone 12, it may become a supplier in 2021 to the iPhone 12s - if all goes well with the iPhone 12 Max (see below).

A Q&A with Dr. York Tsai, Wisechip's Vice President of R&D

WiseChip Semiconductor, based in Taiwan, is one of the world's leading PMOLED maker (in fact in 2015 Wisechip said it's the world's second largest). Wisechip is developing next-generation PMOLED displays, including flexible panels, transparent panels and Hyperfluorescence/TADF PMOLEDs.

Wisechip headquarters photo

WiseChip recently announced its first, and the world’s first, Hyperfluorescence display, using TADF materials provided by Kyulux. Can you tell some more about this display and its properties?

This 2.70” 128x64 product is adopted mostly in industrial products. The size matters in such market but the main problem was to increase the brightness due to the limited efficiency of the fluorescence emitters. The Hyperfluorescence technology helps to settle the problem and can reach up 2.5 times brighter. It performs much better readability so users do not have to stand right in front of the device. This feature adds to the value of the end product.

EDO starts producing tablet and laptop rigid and flexible AMOLEDs, available on the OLED Marketplace

China-based EverDisplay (EDO) has recently started to produce AMOLED displays for tablets and laptops. The first rigid AMOLEDs are a 11" 1728x2368 and 15.6" 3840x2160 4K rigid displays for tablets and laptops. The first flexible ones are a 12.8" 1888x1728 panel for tablet-like devices and a 15.6" 3840x2160 4K flexible AMOLED for laptops.

Everdisplay 6-gen flexible OLED fab Shanghai (render)

These new 11", 12.8" and 15.6" AMOLEDs are now available in the OLED Marketplace. This is great news from EDO, as up until now Samsung Display was the exclusive supplier of AMOLEDs for tablets and laptops. If you are interested in this display for your device or new project, contact us now, or check out more information over at the OLED Marketplace.

BOE to integrate Qualcomm's fingerprint sensors in flexible AMOLED displays

BOE and Qualcomm announced plans to establish a strategic collaboration to develop innovative display products featuring Qualcomm's 3D Sonic ultrasonic fingerprint sensors. BOE have already started to embed Qualcomm's sensor in its flexible OLED displays.

BOE also says that this collaboration will result in a streamlined supply chain and reduces the bill of materials (BoM) and R&D expenses expenses. BOE says that it will start shipping the integrated panels and sensors in H2 2020.

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