Michael Louis Boroson

16.5L: Late-News-Paper: Non-Contact OLED Color Patterning by Radiation-Induced Sublimation Transfer (RIST)

A non-contact vacuum-patterning method is described to sublime OLED materials from a donor to a substrate. Radiation-induced sublimation transfer (RIST) enables the manufacture of full-color OLED devices on large-scale mother glass, at high yield, by eliminating precision shadow masks and donor contact, which are used in evaporation and laser-induced thermal imaging, respectively. Device performance (color, efficiency, stability) is reported for RIST devices and evaporated controls; comparisons to evaporation and other patterning methods are described, and a full-color AM-OLED device was fabricated.

System design for a wide‐color‐gamut TV‐sized AMOLED display

Abstract— By using current technology, it is possible to design and fabricate performance-competitive TV-sized AMOLED displays. In this paper, the system design considerations are described that lead to the selection of the device architecture (including a stacked white OLED-emitting unit), the backplane technology [an amorphous Si (a-Si) backplane with compensation for TFT degradation], and module design (for long life and low cost). The resulting AMOLED displays will meet performance and lifetime requirements, and will be manufacturing cost-competitive for TV applications. A high-performance 14-in. AMOLED display was fabricated by using an in-line OLED deposition machine to demonstrate some of these approaches. The chosen OLED technologies are scalable to larger glass substrate sizes compatible with existing a-Si backplane fabs.

36.1: Invited Paper: Cost Competitive Vacuum Deposition Technology for Small Molecule OLED Manufacturing

This paper will discuss how the unit manufacturing cost of AMOLED displays can be reduced by as much as 40% through the use of a flash vaporization source first presented at SID 2006. This cost reduction is achieved principally through higher materials utilization and higher productivity.

P-138 Systems-Level Comparison of Singlet- and Triplet-Based Full-Color AM-OLED Displays for Power, Lifetime, and Color Gamut

In this paper, we compare the performance of full-color AM-OLED displays fabricated from singlet- and triplet-based materials. A systems-level approach was used to evaluate material performance, in terms of contribution to display power consumption, lifetime, and color gamut. Display architecture techniques were evaluated, such as microcavities and color filters, to enhance the performance of the display. Materials used for the evaluation included high-performance OLED materials from Kodak and published results from other OLED material manufacturers.

63.1: Responsive Vacuum Deposition Technology for Cost-Effective OLED Manufacturing

The ability to interrupt and reinitiate vaporization rapidly to precisely controlled rates is an important requirement for reducing the deposition cost component of OLED displays for both in-line and cluster tool configurations. A flash vaporization deposition system using closed-loop control is described that achieves these objectives.