Renowned Tech website Cnet.com utilise a CS-2000 Spectroradiometer as the core of their system for testing display technology, both in calibrating the displays under test to ensure a level playing field and in capturing data points for the test patterns on displays driven by their signal generator.
You can read the full methodology on their website which is linked below, and watch their video about TV testing facilities.
Learn More About Testing Display Technology in Consumer Electronics
Spectroradiometers from Konica Minolta Sensing
Fast and Accurate Measurement of Luminance and Chromaticity
The CS-3000 and CS-3000 HDR were developed based on the feedback of display producers, increasingly seeking measurement solutions that can be automated and provide increased accuracy on modern display technology which includes increased gamut such as High Dynamic Range (HDR) display.