本帖最后由 frontwing 于 2013-3-12 23:09 编辑
ZR2440w这个没定论,老外的说法是高频PWM肉眼不可见,不过旧批次用普通PWM、新批次改良这点基本可以肯定
2) HP ZR2440W
The LCD HP ZR2440W is measured to have a PWM frequency of 430 Hz. Experience shows that it is usually high enough to not cause any problems.
This monitor has been tried by a US user and it reduced the monitor symptoms greatly for him, but a user from Asia has bought it and the PWM frequency appears to have been lower and he couldn't use it. It is a reminder that it is a gamble with these monitors and that manufacturers may change PWM frequencies as time goes by. Or different parts of the world may have the same monitors with different PWM frequencies. |