The law applies to organic LED displays, too—which is great, since they’re brighter and more energy-efficient than LCDs. OLED screens use a related manufacturing process, and right now they’re printed on 4 x 5-foot sheets. But the Law of Big Glass says 55-inch OLEDs will someday go for less than $1,000 at Costco. By then you’ll probably want a tiny, ridiculously expensive holodeck.