LCDs do not have a refresh rate like the CRT monitors.
CRTs have a refresh rate ...... that is the rate at which the picture is refreshed.
The picture in an LCD is not "drawn" on the screen as with a CRT, by a scanning electron gun exciting phosphor to give the pic.
The refresh rate of a CRT is the number of times per second that the electron beam traverses the screen and returns to the top.
In an LCD each pixel is controlled by the use of transistors whose transparency is controlled, and light from the 'backlight' becomes visible.
The important factor in LCDs from the user point of view is the 'response time' -- of those transistors IIUC.
There is a 'refresh' of the pic to be displayed from the video card ....... it updates the info to the LCD monitor at a particular rate. That is often about 60Hz, but is not the same thing as the refresh rate in a CRT monitor, which refers to how the display is refreshed.
So from the point of view of setting up the display the traditional refresh rate is meaningless and should be ignored.
That is my understanding of the matter.