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.
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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.
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 (over 50% of smartphones use AMOLEDs rather than LCDs), including the latest Samsung phones, and all of Apple's latest iPhone models.
AMOLED displays are also used in OLED TVs, many wearables (such as the Apple Watch), tablets, laptops, VR headsets, monitors, and more. There are also flexible, foldable (and soon rollable) AMOLED displays available today.
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.
2 color 0.96-inch PMOLED
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!
AMOLED (Active-Matrix Organic Light Emitting Diode) displays have become increasingly popular in recent years, providing stunning visuals and vivid colors in everything from smartphones to TVs. Their vibrant colors, high contrast ratios, and thin profiles make them a preferred choice for many manufacturers. But what is an AMOLED screen, what exactly makes AMOLED screens so vibrant, and why are they well-suited for industrial applications? This article will explore the technology behind AMOLED, what does AMOLED mean, how does AMOLED work, and what are main AMOLED display benefits.
Introduction to OLED technologyOLED stands for Organic Light Emitting Diode. Unlike traditional LEDs that are based on silicon, OLEDs are made from organic materials. The basic principle of operation involves the recombination of electrons, similar to any LED or laser diode. In OLEDs, various materials can be used to generate different colors. Unlike TFT displays, which block light from a backlight to produce colors, OLEDs emit light themselves. This means that OLEDs don&#;t require a backlight, allowing them to produce true black colors and achieve high contrast ratios.
Comparison with TFT DisplaysA significant difference between TFT and OLED displays is their construction. TFT displays require multiple layers, including a backlight, diffusers, polarizers, and color filters. In contrast, OLED displays have a simpler construction with fewer layers, making them thinner and potentially cheaper to produce in large quantities.
What Is An AMOLED Screen?AMOLED screens work using organic light-emitting diodes (OLEDs), which are made from thin films of organic material that emit light when electricity is applied.
What does AMOLED meanAMOLED stands for active-matrix organic light-emitting diode. The active-matrix design uses thin-film transistors (TFTs) to precisely control each individual pixel.
How AMOLED WorksUnlike LCD displays which require a backlight, each pixel in an AMOLED screen lights up independently. This active-matrix design means each pixel can be precisely controlled for brightness and color.
The OLED material is deposited on a substrate between two conductors &#; a cathode and an anode. When current flows from the cathode to the anode through the organic material, it emits light. No backlight is required, resulting in thinner, more energy-efficient displays.
Key ComponentsIs AMOLED better than OLED? The key difference between AMOLED and OLED is the incorporation of TFTs. OLED uses a simple passive-matrix structure, while AMOLED has an active-matrix of TFTs integrated into the display.
The TFT backplane in AMOLED displays provides precise control over each individual pixel. This enables higher resolution, faster refresh rates and larger panel sizes compared to passive OLEDs.
AMOLED&#;s active-matrix design avoids issues with crosstalk or ghosting, providing sharper, higher-quality imaging. The fast refresh rates also make AMOLED well-suited for video applications.
AMOLED Display BenefitsWhat makes AMOLED so appealing for smartphones, televisions, and industrial uses? Here are some of the key advantages of AMOLED technology:
Vibrant Colors and ContrastAMOLED displays can reproduce incredibly rich, saturated colors and deep blacks. With no backlight, pixels can be fully switched off to produce perfect black. The contrast ratio can be 100,000:1 or higher.
This vibrant contrast makes images and video really pop. It&#;s ideal for entertainment applications and can also provide crisp, readable text and graphics for industrial HMIs and displays.
Better Viewing AnglesAs each pixel emits its own light, the viewing angle is far wider on AMOLED screens compared to LCDs. Colors and brightness remain consistent even at wide angles of up to 160 degrees.
This allows flexibility in mounting AMOLED displays and makes them well-suited for collaborative applications where content needs to be viewed from various angles.
Faster Refresh RatesAMOLED&#;s response time is extremely fast, with refresh rates reaching 120Hz or higher. This enables smooth, sharp motion for video, animation, and gaming uses.
The fast response also allows for touch sampling rates up to 240Hz, meaning smoother and more responsive touch interactions. This is advantageous for industrial touchscreens and HMIs.
Low Power ConsumptionUnlike LCDs which require constant backlighting, AMOLED pixels only draw power when switched on. Displaying black uses minimal electricity.
This enables reduced energy consumption, especially for always-on displays or those with dark background modes. Lower power usage also allows better battery life for mobile devices.
Thin, Lightweight DesignEliminating the backlight enables extremely thin AMOLED displays, less than 1mm for flexible AMOLED panels. The lightweight, thin profiles allow for sleek industrial designs.
Flexible AMOLED screens even enable new possibilities like rollable or foldable displays. This allows for creative industrial designs and applications, like interactive digital signage or a foldable tablet for field technicians.
High DurabilityAMOLED display sare extremely durable, with no risk of broken backlights. They can operate at very high temperatures, and flexible AMOLED panels can withstand significant bending.
This is ideal for rugged industrial environments and applications. AMOLED touchscreens can provide interactive capability even in challenging conditions.
AMOLED vs Retina vs Other Display TechnologiesHow does AMOLED compare against LCD and other display technologies on key attributes?
Display Technology
Color Quality
Contrast
Viewing Angle
Response Time
Power Efficiency
Thinness
AMOLED
Excellent
Extremely high
160+ degrees
Very fast < 1 ms
Very good for dark UI
Extremely thin
IPS LCD
Very good
Moderate :1
178+ degrees
Fast 5 ms
Moderate
Moderately thin
TN LCD
Good
Moderate :1
160 degrees
Fast 1 ms
Low
Thinner than IPS
CRT
Very good
High :1
160 degrees
Very fast
High power draw
Very bulky
For combining superb visual performance, fast refresh rates, wide viewing angles and efficient power usage in a thin package, AMOLED clearly leads the pack. The technology refinements make it highly competitive across all attributes compared to LCD.
AMOLED For Industrial ApplicationsAMOLED screens have compelling advantages for consumer gadgets, but they also have unique benefits for industrial uses across manufacturing, transportation, medical, and more.
Human-Machine Interface (HMI) DisplaysVibrant and customizable graphical HMIs enabled by AMOLED provide an intuitive way for operators and technicians to monitor and control industrial equipment. Key benefits include:
AMOLED HMIs can display key data clearly and enable easier control of machinery, robots, and other equipment.
Ruggedized Mobile DevicesAMOLED&#;s thinness, daylight readability, and flexibility helps enable rugged handheld devices for field personnel. Some examples:
AMOLED&#;s fast refresh rates provide excellent video performance for augmented reality to assist maintenance and repairs. The efficient power usage also enables longer battery life.
Digital Signage and Retail DisplaysVibrant AMOLED panels are perfect for getting attention and conveying information through public displays:
AMOLED delivers excellent image quality in brightly-lit environments like storefronts and trade shows. Fast video response provides smooth, dynamic imagery.
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Medical DisplaysPrecision and accuracy are critical for medical displays used in hospitals and healthcare facilities. AMOLED provides significant advantages:
By providing critical information clearly and reliably, AMOLED displays can help improve efficiency and outcomes in healthcare applications.
Automotive DisplaysAMOLED&#;sfast response times, wide viewing angles, and excellent sunlight readability make the screens ideal for next-generation automotive applications:
As cars become more automated and reliant on human-machine interfaces, AMOLEDcan provide crisp visual communication to keep drivers informed and engaged.
Military ApplicationsThe military has always been at the forefront of adopting cutting-edge technologies. AMOLED displays, with their high resolution and contrast, are ideal for night-vision devices, heads-up displays in armored vehicles, and avionic control panels. Their lightweight and thin profile also mean that they can be integrated into wearable tech for soldiers, providing real-time data without adding bulk. Furthermore, the potential for flexible AMOLEDs can lead to the development of rollable maps or foldable communication devices, offering tactical advantages in the field.
Marine DevicesIn the marine world, visibility and durability are crucial. AMOLED displays are making waves in this sector, especially in navigation systems, fish finders, and onboard entertainment systems. Their wide viewing angles ensure that sailors and captains can read data from different positions, while the high contrast ensures visibility even under direct sunlight. Additionally, with proper sealing, these displays can be made water-resistant, making them ideal for marine environments where moisture and salt can be detrimental to electronic devices.
Home AppliancesIn the realm of home appliances, the integration of AMOLED displays has revolutionized user interfaces. Modern refrigerators, washing machines, ovens, and even smart home thermostats now boast vibrant AMOLED touchscreens. These displays offer users an intuitive interface with crisp visuals, making it easier to adjust settings, view notifications, or even access recipes. The thinness of AMOLED screens also allows manufacturers to design sleeker, more contemporary appliances that seamlessly blend with modern home aesthetics.
AMOLED Applications SummaryHere&#;s a table outlining the most important parameters and their typical values for AMOLED displays across various sectors:
Parameter
Mobile Devices
Home Appliances
Industrial Devices
Military
Marine Devices
Medical Devices
Resolution
p to 4K
720p to p
480p to p
720p to 4K
480p to p
720p to 4K
Screen Size (inches)
5 to 7
7 to 21
5 to 19
5 to 15
5 to 12
5 to 15
Brightness (nits)
300 to
250 to 700
300 to
300 to
250 to 800
300 to
Refresh Rate (Hz)
60 to 120
60
60
60 to 120
60
60 to 120
Power Consumption (W)
2 to 5
5 to 20
5 to 25
3 to 15
4 to 18
3 to 15
Viewing Angle (degrees)
178
178
178
178
178
178
Durability
Moderate
Moderate
High
Very High
High
High
Lifespan (hours)
20,000 to 50,000
20,000 to 40,000
25,000 to 50,000
30,000 to 60,000
25,000 to 45,000
25,000 to 55,000
Note: The values mentioned in the table are approximate and can vary based on the specific model, manufacturer, and advancements in technology.
Riverdi Product Catalog OverviewRiverdi offers a diverse range of products tailored to meet the requirements of various projects. Their product lineup includes:
Furthermore, Riverdi emphasizes its customization options, ensuring products are tailor-made to fit specific needs. They utilize high-quality materials and components, combined with their team&#;s expertise, to deliver precisely what a project requires.
Riverdi also supports third-party development tools, aiming to provide an efficient way for users to create their applications. They are compatible with various products and tools, including the EVE Screen Designer from Bridgetek and the Riverdi click from MikroElektronika.
The Future Of AMOLEDAMOLED technology continues to rapidly evolve, with advancements in performance, efficiency, and capabilities. Here&#;s a look at some of the innovations in development:
MicroLED DisplaysMicroLED uses tiny LEDs as pixels, delivering the same benefits as OLED but with higher total brightness and durability. MicroLED AMOLED hybrid displays could combine the best aspects of both technologies.
Higher ResolutionDisplay resolutions continue to increase. AMOLED panels already exist with 4K resolution of x pixels. Even higher 8K resolution displays are being developed.
Faster Refresh RatesHigher refresh rates up to 240Hz provide smoother visuals and faster response. This is especially valuable for AR/VR applications.
Improved EfficiencyNew OLED materials and designs promise increased energy efficiency. This will further improve battery life for mobile applications.
Larger Screen SizesManufacturing improvements allow production of very large television-sized AMOLED panels, expanding applications.
Transparent & Flexible DisplaysFlexible and transparent AMOLED displays enable creative industrial design concepts not possible with LCD screens.
SummaryAMOLED technology brings screens to life with vibrant colors, fast refresh rates, and excellent power efficiency. Continued innovation will unlock new capabilities and applications across consumer and industrial domains.
These displays differ from traditional LCDs in that they emit light themselves, eliminating the need for a backlight. This results in true black colors, making them ideal for various applications, from mobile devices to industrial machinery. Transitioning from LCD to AMOLED requires careful consideration in terms of power management, display quality, heat management, and cost. Riverdi, a European manufacturer, stands out in the industry by offering customized display solutions tailored to specific project needs.
The future is bright with AMOLED!
AMOLED FAQ:
By understanding the nuances of AMOLED technology and leveraging the expertise of manufacturers like Riverdi, businesses can ensure they&#;re at the forefront of display innovation.
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