This submission will describe the application of Quantum Dot Films in Liquid Crystal Displays (LCD). Quantum Dots (QD) are nanocrystals of semiconductor material that exhibit unique emission properties. Specifically, the excitons are confined with the QD, and therefore the size of the dot determines the energy level of the emission. In fluorescent applications, the frequency of emitted light increases as the size of the quantum dot decreases, allowing the emission to be highly tunable. Based on the tunability and the narrow emission spectra, QDs have been described for use in LCD's to improve the color gamut.A color LCD is lit by conventional white LEDs that are color filtered to produce red, green, and blue pixels. However by switching to a blue-emitting LED, a portion of the blue light can be converted into green and red light by the quantum dots. This produces a white backlight for an LCD panel which can provide improved color gamut for the display.One drawback of QDs is their susceptibility to oxidization and hydrolysis. To maintain their high fluorescence quantum yield, the QDs must be maintained in an air free environment. Therefore to make a commercial LCD application possible, a delivery format that maintains an air free environment and can be easily handled is required. This presentation will explore the application and the polymer properties required to bring this technology to commercial success.

Quantum dot films in display technology

248th National Meeting (2014)

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