引用U2713HM測試的原文:
Interestingly the Dell U2713HM appears to not use PWM at all for dimming of the backlight. Even at 0% brightness there was no sign of the usual splitting of the white line that you'd expect to see in these tests. We carried out the checks at an even slower shutter speed which returned the same result. This is great news for those who are affected by flickering backlights and suffer from eye fatigue and eye strain.

看起來我如果要買2560x1440螢幕
可能要改選U2713HM了