Quantum Dot Display Science and Technology

Series Editor’s Foreword

Display technology makes advances through many innovations, which cumulatively over several decades have brought us from simple (and rather dull) digital watch displays to today’s large and vibrant flat panel televisions, mobile devices and professional applications. For the most part, these innovations are modest in their individual impact on the technology and their contribution to user experience is only incremental. But the adoption of quantum dot technologies into consumer and professional displays is clearly one of those less common changes which breaks this pattern of incremental change and has fundamentally altered the landscape of what is possible and expected from modern devices. This makes it a special pleasure to introduce the current volume, as an addition to the SID book series.

The improvement in display performance, which quantum dots make possible, is simple in principle. A wide color gamut can only be obtained when the primary light emission is placed at optimized wavelengths in the red, green, and blue regions of the spectrum, and – crucially – with a very narrow emission wavelength range. Any attempt to realize such primaries by filtering a broadband emitter is doomed to cause a disastrous loss of power efficiency. Quantum dots, by contrast, provide a route to exactly the required narrow emission properties, and moreover the wavelength emitted by a single material can be tuned by optimizing the particle size. In contrast to this conceptual ...