So's device takes a radically different turn, replacing glass with thin plastic, eliminating the vacuum and using energy-efficient, organic LEDs.

相比之下，弗兰克·索的发明则独辟蹊径，用轻盈的塑料薄膜代替玻璃，去掉了真空管，直接使用有节能效果的有机发光二极管。