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Physically, gamma died with the CRT, but every LCD recreates it for compatibility.
by tropo 9y ago
Physically, gamma died with the CRT, but every LCD recreates it for compatibility.
- heeen2 9y agoI built a RGB LED Display and at first implemented brightness levels by just PWM modulating in a linear way. I quickly found out that it was lacking in dark shades or that the bright shades were almost indiscernible. The solution was gamma correction which made the shades look distributed evenly across the brightness range.
- kevin_thibedeau 9y agoLCDs still have their own inherent "gamma" curve which is actually a sigmoid shape. They just emulate CRT gamma for backwards compatibility and hide their own low level details in the process.