From TFA. "An additional benefit became apparent after we started using Blank: i... | Hacker News

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		capitainenemo on April 12, 2023 \| parent \| context \| favorite \| on: Blank turns your TV screen black until you press a... From TFA. "An additional benefit became apparent after we started using Blank: it significantly lowers the energy consumption of the screen. All modern TVs have circuits that detect a blank signal and turn off LEDs to reduce the power required by the device. If you’ve ever felt heat coming off your big screen, Blank makes that go away."

mlindner on April 12, 2023 [–]

I'd note that only high end TVs actually have that functionality, and only if it's relatively new.

Though it's especially true for an OLED TV, where a black pixel is a pixel drawing no power at all.

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