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.
An AMOLED display is an OLED display that is driven by an active matrix backplane, it is a type of OLED display that can achieve high performance. Most OLED displays such as the ones used in TVs and smartphones are actually AMOLED displays.
What does AMOLED mean?
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 displays today are used in many applications - and are most common in smartphones. Most smartphones today use AMOLED displays - including the latest Samsung phones, all of Apple's iPhones models and more.
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.
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, up to 97" in size. 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:
Samsung Display demonstrated a new technology it brands as Flex Magic Pixel, that adjusts the viewing angle of the flexible OLED screen so that it is not visible to the person next to it. Samsung says that when this technology is combined with the proper AI technology, can be used to enhance the security of smart devices.
Samsung gives a use case example - when a smart device user runs a banking application in a public place, AI technology can automatically recognize the environment and initiate additional security features. The company's new Flex Magic Pixel enables the introduction of dynamic OLED privacy. Samsung Display is showing the new application at MWC 2024.
During CES 2024, many device makers announced new laptops, monitors and TVs that use OLED displays. Here's a list of all these new devices:
- MSI Monarch 13 laptop (13.3" 2.8K AMOLED)
- LG OLED B4, C4, G4, M4 (WOLED TVs)
- Samsung Odyssey G9 monitor (49" 5120x1440 240Hz QD-OLED)
- Samsung Odyssey G8 / G6 monitors (27" 1440p 360Hz / 32" 4K 240Hz QD-OLED)
- Razer Blade 16 2024 laptop (16" 2560x1600 240Hz SDC AMOLED)
- Dell 2024 XPS 13 / 14 / 16 laptops (16" 90Hz 4K / 14.5" 120Hz 3200x2000 / 13.4" 2880x1800 60Hz AMOLED)
- Acer Predator X34 X / X39 monitors (4" / 39" 3440x1440 240Hz OLED)
- LG Signature OLED T (77" 4K wireless transparent WOLED TV)
- Samsung S95D, S90D, S85D (QD-OLED and WOLED TVs)
- Gigabyte AORUS 2024 QD-OLED monitors (27", 31.5", 34" QD-OLEDs)
- Acer 2024 Swift 14 X / Swift Go 14 / Swift Go 16 laptops (14" / 16" AMOLEDs)
- Panasonic Z93A, Z95A (WOLED TVs)
- HP Omen Transcend 32 gaming monitor (32" 240Hz 4K QD-OLED)
- Dell Alienware AW2725DF / AW3225QF monitors (27", 32" QD-OLEDs)
- HP 2024 Spectre x360 14 laptop (14" AMOLED)
BOE has been planning a 8.5-Gen flexible IT AMOLED Line for a couple of years, and in November 2023, following some delays, the company officially announced its plans for the new fab. Now we hear from China that the Chengdu local government, together with Chengdu's Hi-Tech Industrial Development Zone, have signed the contact with BOE to build the new plant.
The total investment in the fab is expected to reach 63 billion Yuan (over $8.7 billion USD). The fab will have a capacity of 32,000 monthly substrates (2290x2620 mm), and is expected to begin production by Q4 2026 (total construction time will be 34 months, according to the plan).
According to reports in China, strong demand for flexible AMOLED panels for high-end smartphones, have resulted in an increase of panel price. This has caused smartphone makers to adopt more rigid AMOLED panels in their budget smartphones.
The report suggests that Samsung Display is especially enjoying an increase in sales of its rigid AMOLED panels to smartphone makers in China - mainly OPPO, vivo, and Xiaomi. These smartphone makers are replacing LCD displays with Samsung's rigid AMOLEDs - as the price difference is currently quite small.
China's EV car producer Nio announced its latest flagship executive electric sedan, the ET9. The car adopts several new technologies, in areas such as self-driving, sensing, first-class airline seats (it has a four-seat configuration) and more. Nio will ship the first ET9 cars in the first quarter of 2025.
According to reports, the ET9 has two AMOLED displays. The main multimedia front-seat display is a 15.6" AMOLED display. For the passengers, there's a central 14.5" AMOLED display (between the two seats, see image above). We do not have more details on these OLED displays yet.
Visionox announced that it has produced the first mass-production sample ViP AMOLED display. The company aims to start mass producing small and medium-sized ViP AMOLED soon, and later apply the technology for large-area panels as well.
The company did not detail when it expects to start actual mass production. It did update that it has already applied for over 500 patents regarding to ViP technology, over 13 different technical fields. The company also says it is in talks with several key customers to define its production process and final display capabilities.
Last month we reported that BOE finally got accepted into Apple's latest-generation iPhone supply chain, and the company will supply 2 million AMOLED displays for iPhone 15 devices in 2023 (that's about 3% of Apple's total iPhone orders). This news came after many years when BOE failed to meet Apple's quality tests.
A new report from China now suggest that BOE's AMOLED displays have been found to still suffer from issues - specifically light leakage around the selfie-camera and sensor 'island'. Eventually Apple decided to cancel its orders from BOE this year, at least until the China-based display maker can fix the issue.
Our friends at DisplayMate posted an in-depth technical review of BOE's new X1 AMOLED display used in the upcoming OnePlus 12 smartphone. The OnePlus 12 hasn't officially launched, but we know it uses a 6.8" 3168x1440 2600 nits LTPO AMOLED display. The display has several novel technologies, including BOE's new-generation LTPO backplane, and the new Oppo P1 display chip that features high-precision pixel calibration algorithms that ensure high brightness, high image quality - reduced power consumption (by 13%, according to OnePlus).
Based on DisplayMate's extensive lab tests and measurements the OnePlus 12 delivers excellent display performance - and has earned the company's highest overall display assessment rating and highest display performance grade of A+. The display matches or breaks 18 different display quality records. some of these display records records include the highest peak display brightess (it reaches 2,675 nits for Low APL), the lowest screen reflectance (4%), the highestabsolute color accuracy (visually indistinguishable from perfect), and the largest native color gamut.
The OLED Marketplace is now listing a new display, a flexible 6.78" 1080x2400 smartphone display, produced by Tianma.
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. It is available in sample quantities, and in large volume orders.