New Samsung Quantum Dot innovation could transform QD-OLEDs

Samsung Display successfully developed a quantum dot ink recycling tech. The company believes this technological innovation is aimed at enhancing the cost competitiveness of its QD-OLED displays.

The Korean display maker also plans to improve equipment performance and process capabilities to increase productivity and yield. QD ink regeneration technology is groundbreaking but it isn’t the only way to increase competitiveness.

QD ink regeneration technology

Samsung managed to recover and reprocess 80% of the ink that went unutilized in the production of the QD emissive layer. This was made possible through the development of tech to collect and recycle QD ink wasted during the QD-OLED manufacturing process.

This achievement is expected to bring annual cost savings of over $7.3 million (approximately KRW 10 billion). The QD light-emitting layer is formed using inkjet printing that densely sprays red and green QD ink through micro nozzles in micrometer sizes.

Any QD ink left in the nozzles was previously discarded, accounting for approximately 20% of the total QD ink used in the process. With its QD-OLED receiving rave reviews, Samsung Display is using more QD ink than ever before.

“By developing this groundbreaking technology that recycles high-quality QD ink in-house, we will significantly contribute not only to cost reduction but also to resource recycling,” Samsung Display said.