Development of a Manufacturable Blue Electroluminescent (EL) Phosphor Process for the Production of White Monochrome Thin Film Electroluminescent (TFEL) and Full Color Active Matrix Electroluminescent (AMEL) Displays
Abstract
This report documents the effort for scaling up and integrating the strontium sulfide doped with copper (SrS : Cu) vapor deposition process developed at Georgia Tech Research Institute (GTRI) for the manufacturing of color active matrix electroluminescent (AMEL) displays at Planar Systems. "be development consisted of three major tasks: 1) investigate processing issues such as substrate type/morphology and sulfur annealing and their effect on the reliability and luminance performance of SrS:Cu blue phosphor. 2) install a new process infrastructure to perform post deposition processes, e.g., photolithography and etching of 1.4 inch-square substrates for the fabrication of AMEL displays, 3) investigate and identify tools for manufacturing SrS:Cu-based full color AMEL with high yield. Each of these tasks will be described with details in this report. Several SrS:Cu- based white monochrome AMEL displays were produced at the end of this program and they exhibited a factor of six increase in blue luminance (through color filter) over strontium sulfide doped with cerium (SrS:Ce) -based white monochrome displays current production. All these efforts form the basis for producing cost effective and high performance full color AMEL displays for military and civilian applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2002
- Accession Number
- ADA408952
Entities
People
- Sey-shing Sun