OLED-TV Display/Monitor Technology News

The biggest part of manufacturing OLEDs is applying the organic layers to the substrate. This can be done in three ways: Vacuum deposition or vacuum thermal evaporation (VTE) - In a vacuum chamber, the organic molecules are gently heated (evaporated) and allowed to condense as thin films onto cooled substrates. This process is expensive and inefficient.

Organic vapor phase deposition (OVPD) - In a low-pressure, hot-walled reactor chamber, a carrier gas transports evaporated organic molecules onto cooled substrates, where they condense into thin films. Using a carrier gas increases the efficiency and reduces the cost of making OLEDs.

Inkjet printing - With inkjet technology, OLEDs are sprayed onto substrates just like inks are sprayed onto paper during printing. Inkjet technology greatly reduces the cost of OLED manufacturing and allows OLEDs to be printed onto very large films for large displays like 80-inch TV screens or electronic billboards.
AIXTRON has introduced Organic Vapor Phase Deposition (OVPD) Equipment as the enabling technology for OLED display and organic semiconductor solutions. Based on more than 20 years experience in gas phase deposition techniques we have established a highly efficient technology for deposition of organic materials. Our world-class development team assures meeting market requirements and gaining the leading edge of high technologies such as OLED. We are enhancing our technology leadership with strong and renowned partners to complement our equipment expertise with full production process expertise.

OVPD is an innovative technology for the thin film deposition of small molecular organic materials. It utilizes the advantages of gas phase deposition, where the materials are transported to the substrate by an inert carrier gas.

AIXTRON combined its proprietary Close Coupled Showerhead (CCS) with the OVPD technology to accommodate mass production requirements. In collaboration with Universal Display Corp. (UDC) AIXTRON has developed and qualified OVPD production tools addressing the requirements of OLED manufacturing. AIXTRON today offers OVPD equipment for mass production as well as for R&D and pilot production.
http://www.aixtron.com
http://www.universaldisplay.com