Quote:
Originally Posted by TUD1
Based on what I've seen and heard, Sylvania was slightly ahead of all the others on their phosphor formulation. ...
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You've heard right. Sylvania was always finding a better processing sequence for their phosphors - the precise formula, heat treatment, grain size, slurry thickness, you name it. As I have posted elsewhere here, when I was at Motorola, Sylvania came up with a thick slurry that was brighter, but when Motorola tried to duplicate it, they had trouble due to swirl marks developing in the screens. The thicker slurry apparently needed a different swirl pattern/rate that the Motorola deposition machinery wasn't designed to do.