White-Light Emitting OLED Display Based on Partially Conjugated Si-PPV Copolymer Navy STTR FY2005 Sol No.: Navy STTR FY2005 Topic No.: N05-T003 Topic Title: White-Light Emitting OLED Display Based on Partially Conjugated Si-PPV Copolymer Proposal No.: N054-003-0201 Firm: New Span Opto-Technology Inc. 9380 SW 72nd Street, B-180 Miami, Florida 33173-5460 Contact: Sangyup Song Phone: (305) 321-5288 Web Site: www.new-span.com Abstract: OLED technology has improved to the point where it is now possible to envision developing OLEDs as a low cost FPD. In order to realize this, significant advances have to be made in device efficiency, lifetime at high brightness, high throughput fabrication, and the generation of illumination quality white light as new light source. Currently, these devices are being developed commercially, however, for military application, high temperature performance, and long term reliability/stability remain an issue. New Span Opto-technology Inc. proposes a novel white-light emitting OLED display with excellent thermal stability. We will use the partially conjugated Si-PPV as an emitting material. The highly efficient bright white emitting of the device will be realized from the control of the conjugation length of Si-PPVs. In order to achieve our goal, we will find out the most suitable conjugation length and derivatives of Si-PPV with various organic functional groups in the phenyl ring through the quantum chemistry simulation method. This simulation will reduce the time consuming synthetic works. We will demonstrate a bright single-layer white OLED to be realized by spin-coating. This device is the best way to satisfy the high temerpature operation requirement and to achieve the required long term reliability. Benefits: The proposed white light emitting OLED display has the vast number of potential applications. They have enormous potential to grow as the display industry grows. Commercial application examples are high resolution mobile display devices such as cell phone, portable DVD player, and video game device, and larger size digital TV to replace TFT-LCD or PDP. The proposed research will result in an enabling fabrication technology for cost effective and high temperature operated novel OLED device. Return