OLED Commercial uses

OLED technology is used in commercial applications such as small screens for mobile phones and portable digital audio players (MP3 players), car radios, digital cameras, and high-resolution microdisplays for head-mounted displays. Such portable applications favor the high light output of OLEDs for readability in sunlight, and their low power drain. Continue reading “OLED Commercial uses”

Other OLED companies

The Optimus Maximus keyboard developed by the Art. Lebedev Studio and released early 2008 uses 113 48×48-pixel OLEDs (10.1×10.1 mm) for its keys.

OLEDs can be used in High-Resolution Holography (Volumetric display). Professor Orbit showed on May 12, 2007, EXPO Lisbon the potential application of these materials to reproduce three-dimensional video. Continue reading “Other OLED companies”

Samsung applications – OLED Technology demos

In January 2005, Samsung announced the world’s largest OLED TV at the time, at 21-inches. This OLED featured the highest resolution at 2.3 million pixels (WUXGA: widescreen ultra-extended graphics array) at the time. In addition, the company adopted AM-based technology for its low power consumption and high-resolution qualities. Continue reading “Samsung applications – OLED Technology demos”

OLED Disadvantages

The biggest technical problem for OLEDs is the limited lifetime of the organic materials.[46] In particular, blue OLEDs historically have had a lifetime of around 14,000 hours (five years at 8 hours a day) when used for flat-panel displays, which is lower than the typical lifetime of LCD, LED or PDP technology—each currently rated for about 60,000 hours, depending on manufacturer and model. Continue reading “OLED Disadvantages”

OLED Advantages

he radically different manufacturing process of OLEDs lends itself to many advantages over flat-panel displays made with LCD technology. Since OLEDs can be printed onto any suitable substrate using an inkjet printer or even screen printing technologies,[45] they can theoretically have a significantly lower cost than LCDs or plasma displays. Continue reading “OLED Advantages”

Material technologies of OLED

Small molecules

OLED technology using small molecules was first developed at Eastman Kodak by Dr. Ching W. Tang. The production of small-molecule displays often involves vacuum deposition, which makes the production process more expensive than other processing techniques (see below). Since this is typically carried out on glass substrates, these displays are also not flexible, though this limitation is not inherent to small-molecule organic materials. The term OLED traditionally refers to this type of device, though some are using the term SM-OLED. Continue reading “Material technologies of OLED”

The History of OLED

A. Bernanose and co-workers at the Nancy-Université, first produced electroluminescence in organic materials in the early 1950s by applying high-voltage alternating current (AC) fields in air to acridine orange and quinacridine either deposited on or dissolved in cellulose or cellophane thin films. They proposed a mechanism of either direct excitation of the dye molecules or excitation of electrons. Continue reading “The History of OLED”