Not necessarily, on OLED displays (which are definitely a thing for desktop computers and TVs) a light that’s turned off is using less power because the pixels the lamp is displayed on (and the ones around it too) are dimmer.
Actually, the pixels go completely black and do not consume any electricity at all in that state.
You might be thinking of early OLEDs, which had to stay on at all times to prevent blur/smearing. But panel manufacturers solved that problem a few years ago. Don’t remember exactly when the change happened, but I remember first seeing true black OLEDs sometime around 2017/2018.
More interestingly, lamps in video games use the same amount of real electricity if they are on or off.
Not necessarily, on OLED displays (which are definitely a thing for desktop computers and TVs) a light that’s turned off is using less power because the pixels the lamp is displayed on (and the ones around it too) are dimmer.
YELLS IN GPU VERTEX PIPELINE
that consumes electricity. ever think about the poor gpu? about how your words hurt its feelings?
jokes aside the power to process a few hundred vertices every frame is insignificant
And traditional LCDs with a backlight use more power for darkness. The LCD is transparent by default and turns opaque/black when a voltage is applied.
Actually, the pixels go completely black and do not consume any electricity at all in that state.
You might be thinking of early OLEDs, which had to stay on at all times to prevent blur/smearing. But panel manufacturers solved that problem a few years ago. Don’t remember exactly when the change happened, but I remember first seeing true black OLEDs sometime around 2017/2018.
When a lamp turns off it doesn’t become a black hole. Previous commenter was correct, though I appreciate your info about OLED
The light doesn’t become true black, it’s dark but not a complete nothingness. So yes, it’ll still consume power.
Highly depends on the rendering engine and if you’re looking at it, as it could unrender if you look away, meaning less energy used.