Environmentally Friendly Quantum Dots for Display Applications E. Jang SAIT, Samsung Electronics, Suwon, Korea, email:
[email protected] Abstract— Ever since the physics of quantum dot (QD) was Color IQ technology, which was the glass tube optic using Cd- discovered, much research effort has been carried out for based QD. After that, TCL, Philips, BOE, Hisense and Konka more than 30 years, and lots of applications adopting QDs applied the same technology for their TV and monitor have been proposed. Especially, wide color gamut displays products. Nanosys has been very active in commercializing using QDs as active light emitting materials have drawn QD-film through the joint development with film-fabricating much attention. And, the QD-based consumer displays such companies such as 3M, LMS, Hitachi, and Nitto Denko. as LED TVs, tablets, and special monitors are now on the Starting from Amazon’s Kindle fire tablet, QD color market. They provide best color gamut, reasonable power converting film, which is called as QDEF, was adopted in the ASUS’s laptop and monitor, and TVs of Hisense, TCL, Vizio, efficiency, and affordable price showing superior competitive AUO. In China, Najing technology started to provide QDs to edge to OLED technology. However, still there are issues film makers such as Sangbo and Poly-OE, and work with TCL and argues using Cadmium containing materials in practical and Hisense to produce TVs. Nanoco is one of the pioneer consumer devices. In spite of the European RoHS companies to have developed the Cd-free QDs from the Exemptions, we need to be aware the environmental risk of beginning, and they have collaborated with Dow chemical and producing large quantity of Cd-containing materials and Merck for the mass-production.