OLED TechnologyDiscussing The Basics

Not all display screens use the same technology¾there’s a group of technologies that enable quality images. Commercial and industrial LCD panels use one of at least seven different technologies:

  • In-Plane Switching (IPS)
  • Premium Multi-Domain Vertical Alignment (P-MVA)
  • Super Multi-Domain Vertical Alignment (S-MVA)
  • Advanced Fringe Field Switching (AFFS)
  • Advanced Multi-Domain Vertical Alignment (AMVA)
  • Organic Light Emitting Diode (OLED)
  • Twisted Nematic (TN)

 What is OLED essentially?

These panels are configured from organic or carbon-based materials that can emit upon application of electricity. These materials were discovered in 1960, but were applied in industrial display panels in the last few decades.

These OLED panels don’t require backlights and filters which makes them more efficient, simple to manufacture, and significantly thinner. OLEDs can even be manufactured as flexible and rollable screens!

Moreover, they offer a brilliant picture quality, bright colors, fast response rate, infinite contrast and wide viewing angles.

How do OLED displays work?

The main component of these displays is the OLED emitter. The basic structure consists of an emissive OLED layer which is sandwiched between a cathode and an anode.

Modern devices use multiple layers for a more efficient and durable display, while maintaining the same functionality.

How are OLED panels manufactured?

An OLED panel consists of a:

  • Substrate
  • Backplane (electronics)
  • Frontplane (electrodes and organic materials)
  • Encapsulation layer

OLEDs are sensitive to moisture and oxygen, making the encapsulation layer a critical component.

The backplane and substrate of the OLEDs are very similar to traditional LCD displays. However, its frontplane deposition is unique. The organic layers can be deposited and patterned in several ways.

Most OLEDs use vacuum evaporation with a Shadow Mask fro patterning. This is simple yet inefficient method which is also difficult to scale up for larger substrates.

Certain OLED materials are soluble, making it easier to deposit the layers using printing methods. Typically, inkjet printing is used. The technique has yet to commercialize but OLED manufacturers have their hopes up. This may just be the solution to produce scalable, efficient and affordable OLED deposits.

If you’re an original equipment manufacturer or electronics distributor involved in LCD display screen repair or manufacturing, REVO Interactive has a great selection of products for you. The best part is that these displays are available for order right away.

In fact, they also offer a number of display technologies, including OLEDs. Check out their list of products today and contact them directly for pricing.

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