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NEC V801 Review: Benchmarking A Massive 80-Inch Monitor

Measurement And Calibration Methodology: How We Test

To measure and calibrate monitors, we use an i1Pro spectrophotometer and version 5.1.2 of SpectraCal’s CalMAN software.

For patterns, we employ an AccuPel DVG-5000 video signal generator. This approach removes video cards and drivers from the signal chain, allowing the display to receive true reference patterns. Connections are made via HDMI.

The AccuPel DVG-5000 is capable of generating all types of video signals at any resolution and refresh rate up to 1920x1080 at 60 Hz. It can also display motion patterns to evaluate a monitor's video processing capabilities, with 3D patterns available in every format. This allows us to measure color and grayscale performance, crosstalk, and ghosting in 3D content via the 3D glasses.

The i1Pro is placed at the center of the screen (unless we’re measuring uniformity) and sealed against it to block out any ambient light. The Accupel pattern generator (bottom left) is controlled via USB by CalMAN, which is running on the Dell XPS laptop on the right.

Our version of CalMAN Ultimate allows us to design all of the screens and workflows to best suit the purpose at hand. To that end, we’ve created a display review workflow from scratch. This way, we can be sure to collect all of the necessary data with a concise and efficient set of measurements.

The charts show us the RGB levels, gamma response, and Delta E error for every brightness point from zero to 100 percent. The table shows us the raw data for each measurement. The area in the upper-left tells us luminance, average gamma, Delta E, and contrast ratio.

Every primary and secondary color is measured at 20, 40, 60, 80, and 100 percent saturation. The color saturation level is simply the distance from the white point on the CIE chart. You can see the targets moving out from white in a straight line. The further a point is from center, the greater the saturation until you hit 100 percent at the edge of the gamut triangle. This shows us the display’s response at a cross-section of color points. Many monitors score well when only the 100 percent saturations are measured. Hitting the targets at the lower saturations is more difficult, and factors into our average Delta E value (which explains why our Delta E values are sometimes higher than those reported by other publications).

Our benchmark tests are relevant for any display whether it’s used with a computer or as an HDTV. The only difference here is that we’re including data from a consumer product, Pioneer’s Elite PRO-111FD, in our comparison charts.

Christian Eberle
Christian Eberle is a Contributing Editor for Tom's Hardware US. He's a veteran reviewer of A/V equipment, specializing in monitors.
  • patrick47018
    Why would you want an 80" monitor that is only 1080P?
    Reply
  • Someone Somewhere
    Yeah, 1920x1080... those pixels are 0.92mm square. That's pretty easy to see with the naked eye; far bigger than a full stop.

    27.5ppi... *shudders*.

    EDIT:
    the V801’s size is better expressed in feet: 227.6 (69.37 square meters for the rest of the world)

    Ummm... 70 square meters is pretty big. That's about half of the average house. I think you'll find it's ~1.76 m² or 19 ft².
    Reply
  • patrick47018
    On the other had I wouldn't mind having that Pioneer "God" TV
    Reply
  • huilun02
    Way to make a home cinema system with an average computer.
    Reply
  • 16bit
    I wouldn't get such a big monitor/hdtv unless it has a higher than 1080p resolution.
    Reply
  • tanjo
    Thank you for buying this excessively massive monitor to save the environment.
    Reply
  • cangelini
    @Someone: Thanks--missed the calculation error during my edit. Should be fixed now.
    Reply
  • virtualban
    For that size I clicked the article in hopes that maybe it was some 8K monitor. Stopped reading after 1080p
    Reply
  • icemunk
    A wee bit pricey. I'll stick to my six 40" monitors
    Reply
  • baddad
    I've had a Mits 82" DLP since 2011 I paid $1900.00, that is the heart of my media center, so $9400 for just a monitor is a bit much.
    Reply