NEC PA 27" and 31" were virtually identical to EIZO CG and vice versa - same panels, same capabilities, same performance.
I've seen assertions like this before and they don't become any less false thru repetition. A monitor is much more than simply a panel or a backlight or any other component part. They are are the sum of all of their parts, programming, and processes. Different manufacturers produce different products even when a component might be the same. That
should be obvious.
Monitors are much more complex than some may think. The incoming digital video signal undergoes multiple levels of calculated transformations before becoming a carefully controlled analog electrical signal eventually applied as a precise voltage to a tiny sub-pixel inside an analog screen.
Same panel and so... what? Everything else is "virtually identical"? Of course not. As one of
many examples of different choices made in engineering and design; in their most recent CG and PA series monitors, NEC and Eizo used different approaches to something as basic as supplying power to the panel to control brightness. Eizo uses
DC (Direct Current) dimming to regulate brightness while NEC chose to use
PWM (Pulse Width Modulation). No... I'm not going to get pulled into a discussion about the advantages or disadvantages of either method and the difference it makes in the cost of manufacturing. It's just an example of how one component, like a display panel in this instance, may be treated differently and connected to entirely different surrounding components by two different manufacturers.
It illustrates why no one should accept anything they read as true without applying some of their reasoning skills and doing some further investigation of claims. What you choose to accept as fact, perceive as "virtually identical", or your understanding of differences will always be entirely up to you.