OLED Lighting Hits the Market

Abstract

Performance and design freedom are advancing organic light‐emitting diode (OLED) lighting, providing differentiation from general lighting to transportation and more. OLED is the first naturally diffuse lighting, with pure qualities highly prized by designers. Razor thin with superb color characteristics and uniformity, OLED offers an alternative to high‐glare lighting sources and allows a variety of innovative applications and attractive designs.

Cost Estimates of Roll-to-Roll Production of Organic Light Emitting Devices for Lighting

“…Materials comprise 76% of the total WOLED light engine cost by hybrid R2R production in our analysis. This agrees with previous analyses where the decrease of the cost of WOLED lighting is achieved through reduction of depreciation and labor cost from manufacturing scale-up, making materials the dominant cost contributor. ,, …”

“…White organic light emitting devices (WOLEDs) are attractive for solid state lighting (SSL) since they offer higher power efficiencies compared to existing florescent or incandescent sources. − WOLEDs share many attributes with another SSL source, inorganic LEDs, including the use of low toxicity materials, high color rendering indexes (CRI), tunable spectra, and compatibility with standard control and dimming solutions using direct current (DC) power. − Unique features, such as a large color gamut, thin and flexible form factor, low glare, and heat-free operation, make WOLEDs particularly suitable for aesthetic and pleasant interior lighting . Among challenges of WOLED lighting are that their light intensity and lifetime are lower than conventional LEDs. , The relatively low brightness of WOLEDs can be mitigated by vertically stacking individual OLED elements in panels or producing larger area WOLED luminaires that generate diffusive illumination .…”

3,5-Dicyanopyridine motifs for electron-transporting semiconductors: from design and synthesis to efficient organic light-emitting diodes

“…4,4 0 -(5-Bromo-1,3-phenylene)bis(2,6-dimethyl)-1,4-dihydropyridine-3,5-dicarbonitrile (2). A mixture of 5-bromoisophthalaldehyde 1 (1.0 g, 4.7 mmol, 1 equiv.)…”

“…1 In the late 90s of the last century, organic light-emitting diodes (OLEDs) started to compete and share the display and lighting markets with LEDs partly due to their unique properties, including optical transparency and flexibility. 2 At that time, fluorescent emitters were used in OLED structures, limiting their theoretical internal quantum efficiency (IQE) to 25% due to the harvesting of only singlet excitons. 3 In 1999, a significant breakthrough was reached in OLED technology through the development of phosphorescent emitters, thus increasing their theoretical EQEs to 100%.…”

84‐1: Invited Paper: Advances in High Efficacy and Flexible OLED Lighting

“…Further cost reductions are possible through future manufacturing innovations such as roll-to-roll (R2R) processing of OLEDs made on flexible glass or plastic substrates. Achieving lower cost and higher performance is key to the success of OLED lighting [3].…”