Flexible Organic Light-Emitting Diode


A Flexible Organic Light-Emitting Diode (FOLED) is a type of OLED display technology that incorporates flexible materials, allowing it to be bent or folded without breaking. These displays use organic compounds to emit light, resulting in thinner, lighter, and more energy-efficient screens. FOLEDs have potential applications in wearable devices, roll-up screens, and curved displays for televisions or smartphones.


The phonetics of the keyword “Flexible Organic Light-Emitting Diode” would be:FLEK-suh-buhl or-GAN-ik lyt i-MIT-ing DYE-ohd

Key Takeaways

  1. Flexible OLEDs can conform to curved and bendable surfaces, enabling a new generation of innovative product designs in consumer electronics, automotive, and various other industries.
  2. Compared to traditional rigid OLEDs, flexible OLEDs are lightweight, thinner, and utilize less power, delivering high-quality visuals while optimizing energy efficiency.
  3. Due to their organic materials-based composition, flexible OLEDs are more susceptible to degradation from external conditions, thus requiring robust encapsulation and manufacturing techniques to enhance durability and lifespan.


Flexible Organic Light-Emitting Diode (FOLED) is an important technology term because it represents a significant advancement in the field of display technology.

FOLEDs have a unique combination of features, such as flexibility, lightweight, and the ability to produce high-resolution images with rich colors and deep contrast levels.

They are based on organic material, which allows them to be constructed on flexible substrates like plastic or metal foil.

This flexibility enables the creation of curved and bendable displays, which can be easily integrated into various applications ranging from smartphones and wearable devices to automotive displays and television screens.

Furthermore, FOLEDs are known for their energy efficiency and fast response times, offering potential for next-generation display technology that is both versatile and environmentally friendly.


Flexible Organic Light-Emitting Diode (OLED) technology has revolutionized the display and lighting industries by introducing bendable, paper-thin screens for a plethora of applications. The essential purpose of this advanced technology is to create displays and lighting solutions that are lightweight, energy-efficient, and capable of conforming to various shapes.

Combining the advantages of both organic materials and flexible substrates, flexible OLEDs have unlocked the potential for folding and curved displays, ensuring improved user experiences and aesthetic appeal in a wide array of devices. One exciting use of flexible OLEDs is in consumer electronics, where they provide a new level of design and versatility to devices such as smartphones, tablets, and wearables.

For instance, smartphones with foldable screens or smartwatches with curved displays are a direct result of advancements in flexible OLED technology. Additionally, applications can extend to other sectors such as automotive, where they are utilized for producing curved dashboard displays and lighting solutions which conform to the vehicle’s interior design.

Furthermore, in the advertising and signage industries, flexible OLED displays can be wrapped around curved surfaces, providing highly customizable and dynamic displays for businesses. Overall, the flexible OLED technology has opened doors to countless opportunities, promising improved functionality, enhanced user experiences, and greater design possibilities across many sectors.

Examples of Flexible Organic Light-Emitting Diode

LG Signature OLED R Rollable TV: The LG Signature OLED R is a 65-inch rollable TV featuring a flexible OLED display. It has the capability to roll up into its base when not in use, and then unroll to display high-quality images and videos. The flexible OLED technology allows the television screen to be incredibly thin, and the ability of the screen to roll up offers new possibilities for space-saving and interior design.

Royole FlexPai: The Royole FlexPai is a foldable smartphone that consists of a flexible OLED display, which allows the device to be folded and unfolded without damage to the screen. The device functions as a regular smartphone when folded but can be expanded into a larger tablet-like screen when required. The flexible OLED technology enables the creation of more versatile mobile devices that can adapt to user needs.

Samsung Galaxy Fold: The Samsung Galaxy Fold is another example of a foldable smartphone utilizing flexible OLED technology. It features a

6-inch external display when folded and expands to a

3-inch display when unfolded, transforming from a compact phone to a larger tablet-like device. The use of flexible OLED technology allows the seamless transition between the two forms, enabling users to have a multifunctional device that caters to different tasks and usage scenarios.

Flexible Organic Light-Emitting Diode (OLED) FAQ

1. What is a Flexible Organic Light-Emitting Diode (OLED)?

A Flexible Organic Light-Emitting Diode (OLED) is a display technology that consists of a thin, flexible substrate with an arrangement of organic molecules that emit light when electricity is applied. It provides a high-quality image with lower power consumption and can be easily bent without cracking or breaking.

2. How do Flexible OLEDs work?

Flexible OLEDs work by applying an electric current to organic materials that emit light. The devices use a flexible substrate, like plastic or metal foil, that provides the ability to bend the screen. A stack of organic layers, including a hole injection layer, an emissive layer, and an electron transport layer, is sandwiched between two electrodes (anode and cathode) to form the OLED device. When electricity is applied, electrons and holes are injected into the organic layers, and they emit light as they combine.

3. What are the advantages of using Flexible OLEDs?

Flexible OLEDs offer numerous advantages, such as high contrast ratio, fast response time, wide color gamut, thin and lightweight design, flexibility, and low power consumption. They can be bent, rolled, and integrated into various applications, including wearable devices, foldable smartphones, and curved displays for automotive and other consumer electronic industries.

4. What are some common applications of Flexible OLEDs?

Flexible OLEDs are commonly used in various applications, including smartphones, smartwatches, tablets, televisions, automotive displays, lighting panels, and digital signage. Their flexibility enables innovative product designs and new functionalities, such as folding, bending, and conforming to curved surfaces.

5. How do Flexible OLEDs compare to other display technologies?

Compared to other display technologies like LCDs and traditional LEDs, Flexible OLEDs offer several advantages. They provide a higher contrast ratio, better color accuracy, faster response time, wider viewing angles, and increased brightness. Furthermore, they can be easily bent and integrated into flexible electronics, making them more versatile for various applications.

Related Technology Terms

  • OLED (Organic Light-Emitting Diode)
  • Flexible substrate (e.g. plastic, thin-film, bendable)
  • Organic semiconducting layers (e.g. polymers, small molecules)
  • Electroluminescence (process by which light is emitted)
  • Flexible display technology (e.g. curved screens, foldable devices)

Sources for More Information


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