In reality the model that Sony have demo'd uses more power per sqr metre than a modern LCD.
I'm not sure that lifespan even matters if it's 3.5 years of continuous usage.
Assuming an average of 2 hrs a day that means a domestic set will last for 36 years. Even if it's 6 hours a day it will last for 12 years, and who keeps something for 12 years these days.
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Power Consumption
In theory power consumption is reduced.
In reality the model that Sony have demo'd uses more power per sqr metre than a modern LCD.
I'm not sure that lifespan even matters if it's 3.5 years of continuous usage.
Assuming an average of 2 hrs a day that means a domestic set will last for 36 years. Even if it's 6 hours a day it will last for 12 years, and who keeps something for 12 years these days.