title: Fluorescent protein integrated white LEDs for displays.
abstract: The usage time of displays (e.g., TVs, mobile phones, etc) is in general shorter than their functional life time, which worsens the electronic waste (e-waste) problem around the world. The integration of biomaterials into electronics can help to reduce the e-waste problem. In this study, we demonstrate fluorescent protein integrated white LEDs to use as a backlight source for liquid crystal (LC) displays for the first time. We express and purify enhanced green fluorescent protein (eGFP) and monomeric Cherry protein (mCherry), and afterward we integrate these proteins as a wavelength-converter on a blue LED chip. The protein-integrated backlight exhibits a high luminous efficacy of 248 lm/Woptand the area of the gamut covers 80% of the NTSC color gamut. The resultant colors and objects in the image on the display can be well observed and distinguished. Therefore, fluorescent proteins show promise for display applications.
authors.affiliation: Department of Electrical and Electronics Engineering, Koc University, Sariyer, Istanbul, 34450 Turkey.
authors.forename: Daniel Aaron
authors.initials: DA
authors.lastname: Press
authors.forename: Rustamzhon
authors.initials: R
authors.lastname: Melikov
authors.forename: Deniz
authors.initials: D
authors.lastname: Conkar
authors.forename: Elif Nur
authors.initials: EN
authors.lastname: Firat-Karalar
authors.forename: Sedat
authors.initials: S
authors.lastname: Nizamoglu