>>Over a decade has passed since the LCD monitor unceremoniously ousted the boxy CRT monitor into obsolescence, but with that ousting came a small problem: CRT monitors redrew every frame from scratch, and this was baked into the fundamentals of how PCs sent information to the screen. Monitors redrew the screen with a refresh rate of 100 Hz, (100 times a second), and they were silky smooth.
>>LCD monitors don’t have this problem, because the pixels don’t need to be refreshed.
Instead, they update individual pixels with new colors, and each of those updates takes a certain amount of time depending on what the change is.
The response time refers to how long this change takes. LCDs started with a 60-Hz refresh rate but a response time of about 15 milliseconds (ms).
