Why we can’t replicate 0 input lag with monitor/TVs like we were able to do with CRTs
In: 5
CRT display works by shooting electron beam on a phospr surface on the display.
Where the beam hit the display would light up basically immediately and then go out.
Here is slow motion video of a CRT https://youtu.be/3BJU2drrtCM?t=104
The scanning you see in the vidseo happens so fast that human eye wouldn’t be able to see it at all and the screen would seem to be on constantly.
LCD (Liquid Crystal Display) works by having liquid crystals in it. Electricity is used to twist these crystals to change how much light gets through.
Twisting the crystal takes some time.
Some gaming displays have “overdrive” setting that uses stronger current/voltage to twist the crystals faster. But this can often result in overshooting. So if you try to go from white->gray the pixel overshoots white->dark gray->gray.
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