I've done some OLED work. The closed caption receivers described at http://www.uslinc.com/images/products/download/CCS-OneSheet.pdf use OLED. The seat mount display uses USMP P21301 (USL#800003) - 3.2 inch, 256x64 monochrome white OLED. Uses SSD1322 controller. Requires +3.3V and +14V. Supports 6800 and 8080 8 bit parallel interfaces. Supports SPI with separate command/data register select pin or additional serial bit to select command or data (9 bit bytes with command/data sent before msb in SPI). The eyeglasses display is still in development. We started with a micro OLED (something like 0.25 inch diagonal) MED3204. They got stuck in the financial crisis and disappeared. We're now using an LCD (Kopin KCD-QD01-BA). For text generation, I put a Unifont table in a 2MB SPI flash chip. I receive UTF-8, look up the bitmap, and output it. The USMP display is nice in that it does not require any refresh. You just send it stuff over SPI or parallel bus, and it puts it up on the display until changed. The MED and Kopin displays require continuous refresh. Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .