OLED displays use organic materials that emit light when electricity is applied. OLEDs enable emissive, bright, thin, flexible and efficient displays - and so OLEDs are set to replace LCDs in all display applications - from small displays to large TV sets.
AMOLED displays today are used in many applications - and are most common in smartphones. Samsung for example uses AMOLED displays in most of its high-end phones, including the latest Galaxy S9 and S9 Plus and the Note 9. Apple's new iPhones, SmarthWatches, and the MacBook Pro's Touch Bar are all using AMOLEDs. Other AMOLED devices include smartphones from Huawie, Sony, Xiaomi and others.
AMOLED displays are also used in OLED TVs - which are mostly available from LG. OLED TV screens range from 55" to 77" (88" 8K ones are coming in 2019), and are considered to be the best TV panels ever produced. In 2019 we will have the first rollable OLED TV - LG's 65" Signature OLED R.
AMOLED: Active Matrix OLED
The term AMOLED means Active-Matrix OLED. The 'active-matrix' part refers to the driving electronics, or the TFT layer. When you display an image, you actually display it line by line (sequentially) as you can only change one line at a time. An AMOLED uses a TFT which contains a storage capacitor which maintains the line pixel states, and so enables large size (and large resolution) displays.
AMOLED vs PMOLED
A PMOLED uses a simpler kind of driver electronics - without a storage capacitor. This means that each line is turned off when you move to the next line. So let's say you have 10 rows in your display - each row will only be on 1/10 of the time. The brightness of each row has to be 10 times the brightness you'd get in an AMOLED. So you use more voltage which shortens the lifetime of the OLED materials and also results in a less efficient display. So while PMOLEDs are cheaper to make than AMOLEDs they are limited in size and resolution (the largest PMOLED is only 5", and most of them are around 1" to 3"). Most PMOLEDs are used for character display, and not to show photos or videos.
Flexible, foldable and rollable AMOLEDs
One of the main advantages of AMOLED displays is that they can be made flexible. Flexible AMOLEDs are already popular for many years in smartphones and wearables, and in 2019 we will experience the first foldable devices and rollable screens.
Several companies are developing large transparent AMOLED displays - and in past years we've seen many prototypes - including a large 55" Full-HD transparent TV. But this technology is not commercial yet, mostly it seems because there are no useful applications that will convince the display makers to mass produce such panels.
Looking to buy AMOLED displays?
Are you looking to buy AMOLED display for your project? AMOLEDs on the market range from small 1-inch ones for smartwatches through large OLEDs used in tablets and laptops - to large TV panels. Visit our OLED Marketplace, the world's most comprehensive OLED catalog, where you can browse the available panels, and let us help you find the best AMOLED supplier for your needs!
The latest AMOLED news:
According to reports, Samsung Display has been chosen by BMW to supply it with AMOLED displays for the company's high-end sedans. BMW will start adopting Samsung's AMOLEDs in 2024 and will buy a total of 4 million displays in about 6-7 years. We do not have any information regarding the display size and features.
Samsung has been a relative late comer to the automotive AMOLED market (the clear leader today is LG Display), and this is an important design win for the company. Samsung also supplied rear-view mirror displays for Hyundai's Ioniq 5 EV and for Audi's e-tron SUVs, but both these systems were optional and the BMW deal is the first major one for Samsung.
Apple finalizes its supply chain for the iPhone 14 AMOLED displays, starts ordering panels from BOE again
According to reports from Korea, Apple has started to sign agreements regarding the supply of OLED displays for the next iPhone model (iPhone 14). As always, the main supplier will be Samsung Display, which will supply 80 million units of its latest LTPO AMOLED display (M12 stack) to Apple.
Apple is set to release four iPhone models. The iPhone 14 (6.1-inch), 14 Plus (6.7-inch), 14 Pro (6.1-inch) and 14 Pro Max (6.7-inch).
India-based Rajesh progressed with its proposed $3 billion AMOLED fab, signs MOU with local government
Last month we reported that India-based gold-trading company Rajesh Exports has proposed to build a $3 billion 6-Gen AMOLED fab in India. It is now reported that the project is progressing, and Rajesh has signed an MOU with the local government of Telangana, a state in southern India.
Rajesh Exports established a subsidiary called Elest for this project. The plan is to build a 6-Gen AMOLED fab and produce displays for smartphones, tablets and laptops.
Samsung Display officially announced its latest laptop OLED display, a 15.6" 240Hz panel aimed for gaming laptops. The display offers a QHD (2560x1440) resolution, a response time of 0.2 ms and VESA DisplayHDR 600 certification.
Samsung also announced that the first laptop to adopt the new display, which will enter production soon, is MSI's Raider GE67 HX, which is already available for pre-orders.
We are happy to announce that the OLED marketplace lists a 2.69" 600x800 AMOLED display, produced by BOE.
We know many device makers have been struggling to find small-sized AMOLED displays, as most OLED makers produce either wearable OLEDs (usually up to 1.5" in size) or smartphone-type OLEDs (starting at around 5-inch). This new 2.69" AMOLED can be a great solution for many companies.
EverDisplay updates on its latest fab expansion project, its latest financial results and the effect of the COVID outbreak in Shanghai
China-based AMOLED producer Everdisplay is progressing with its expansion plan for its 6-Gen production line in Shanghai. EDO's new line, which will have a monthly capacity of 15,000 substrates is progressing as planned, with trial production expected in 2023.
It seems as if EDO is targeting automotive applications for its latest AMBLED displays. The company already started developing OLEDs for automotive applications in 2015, and now the company is now stepping up its efforts, as large displays are entering the automotive market.
Digitimes has an interesting article, in which it details plans by a company based in India to establish a $3 billion AMOLED fab, in India .
The company, Rajesh Exports, is a gold trading company, that aims to become an EV battery producer, and an AMOLED display maker. The company apparently has launched a subsidiary called Elest for the AMOLED project, and it started talking to three states in India, in order to gain support for its 240 Rupee (around $3.1 billion USD) fab.
Kyulux says it is on track to commercialize green Hyperfluorescence materials in 2023, red and blue in 2024
Kyulux gave a very upbeat presentation at SID Displayweek, during which it updated on its latest material specification and its commercialization plans.
Kyulux managed to increase the lifetime of its Hyperfluorescence emitter systems (which features an IQE of 100% and a narrow emission spectrum) quite dramatically in the past year – its green material now offers a lifetime of 59,000 hours (LT95@1000 nits, top emission), while the red material is at 20,000 hours. The blue material has also increase from280 hours to 450 hours in the past year.
BOE has been aiming to supply OLED displays for Apple for a long time, and Apple also welcomed BOE as a supplier as it wants to reduce its dependence on Samsung and LG.
An interesting report from Korea suggests that Apple's CEO met with Samsung Display's CEO recently, as Apple is looking to reduce its OLED iPhone orders from Samsung by around 15% in 2022.
Apple, like the rest of the technology industry, is facing supply constraints and has already said that it won't be able to meet the demand for its products in 2022. Apple's original plan was to produce 220 million iPhones in 2022, and it expected to order 160 million iPhone AMOLED panels from SDC. Apple's now expects to ship only 185 million iPhones.