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Measurement And Calibration Methodology: How We Test

Toshiba 65L9300U: A 4K HDTV With HDMI 2.0 Support
By

To measure and calibrate monitors and HDTVs, 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 me 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 and collect all 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. And the area in the upper-left tells us luminance, average gamma, Delta E, and contrast ratio. The individual charts can be copied to the Windows clipboard to easily create graphics for our reviews.

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).

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  • 1 Hide
    Someone Somewhere , April 3, 2014 12:22 AM
    Argh. Why do people still make TVs with rear-exit connectors? That was the #1 hardest to find criteria last time we got a new one.
  • 2 Hide
    SteelCity1981 , April 3, 2014 1:09 AM
    Toshiba still holding onto the 3D in their TV's. I got caught up in the hype and bought me a 3D TV two years ago and honestly I have only used it maybe 4 or 5 times if that. It's something now that I look back on I could have really done without and saved money on a regular HDTV, but live and learn. a cheaper non 3D version of this would be nice. I, like most people can do without the 3D function on a TV, esp if it will reduce the cost on the TV itself. It is nice to finally see a 4k TV come with HDMI 2.0 support, something that 1080p TV's don't need but 4k do in order to take full advantage of it by allowing 60fps.
  • 2 Hide
    cats_Paw , April 3, 2014 2:10 AM
    Untill we get 4K contenent or GPUs can manage 4K resolutions in AAA titles with highest settings possible, 4K makes as much sense as a fast car in a 50 Km/h town.On the 3D matter, it does look cool on a projector if you get a 120+ inch screen, but in tvs, it looks like a gimick to me.Now... The HDMI improvment is something I want. Ive been wanting Full HD 60Hz 3D for a long time, and it seems 3D has been so unpopular that it didnt even make sense to invest in improving bandwidth.
  • 0 Hide
    Someone Somewhere , April 3, 2014 2:13 AM
    You can do 1080p120 (equivalent to 60Hz 3d 1080p) over HDMI 1.4a easily... same bandwidth as 1440p60.
  • 8 Hide
    Someone Somewhere , April 3, 2014 2:38 AM
    Actually, 4K TVs can bring a better picture. Especially if one has 4K content, or is viewing pictures or text.

    Monster cables are definitely crap though.
  • 2 Hide
    TheDane , April 3, 2014 3:48 AM
    Quote:
    Argh. Why do people still make TVs with rear-exit connectors? That was the #1 hardest to find criteria last time we got a new one.
    Argh. Why don't people use a cheap angled adapter.
  • 0 Hide
    TheDane , April 3, 2014 3:50 AM
    Like this: http://www.amazon.com/s?ie=UTF8&page=1&rh=i%3Aaps%2Ck%3Ahdmi%20angle%20adapter
  • 1 Hide
    Immaculate , April 3, 2014 4:03 AM
    Why doesn't anybody add DisplayPort to TVs?
  • -1 Hide
    Someone Somewhere , April 3, 2014 4:17 AM
    Which is extra failure points, and can block other connectors.
  • 0 Hide
    drwho1 , April 3, 2014 6:44 AM
    $1500 - $2000 would be the "sweet spot" price point for this TV.Still I'm glad to see this at $3500 is not too "exotic".... LOLSo it could reach the $2000 "sweet spot" within a year or so... Good review by the way.
  • 0 Hide
    aberkae , April 3, 2014 7:05 AM
    51 ms of input lag is too much lag for any gaming, fyi abesofmaine has a few 55 inch 4k monitors by sony samsung and lg closer to $2000 frees shipping and no tax. the 65 inchers are still $3k and up.
  • 0 Hide
    NinjaNerd56 , April 3, 2014 7:38 AM
    I have a Toshiba set in the bedroom and it's only OK overall.Of course, part of that is the 65 inch Panasonic plasma in the living room. Only 1080p, but incredible picture in every aspect. I spent about as much on it last year as this Toshiba costs now at MSRP. Don't regret a penny.Given the dearth of 4K content, I'll stick with this plasma beast for a while. May be the last year we see plasma, so I'm about to see if the 100,000 hour rating on the panel is for real.And, I'd put my calibrated Panasonic against any set, including 4K machines, with 1080p content. And I'd win. Sadly, resolution and 'smart' features are the focus of these early 4K sets and as picture comes behind.That said...it's 4K! This will be neat...in 2-3 years.
  • 1 Hide
    davidgirgis , April 3, 2014 8:26 AM
    This TV is similar to the Panasonic TC-L65WT600. According to THX, you have to sit 6.5 feet away from this TV, at most.
  • -5 Hide
    Zeroplanetz , April 3, 2014 8:44 AM
    I want 4k 120hz min, with 3d, and no need for WiFi or internet in it and at 50". For no more than $1k. That's when ill buy. No not some almost. But true 4k. It would be nice though if I could add a blutooth dongle for video receiving from my PC.
  • 0 Hide
    Traciatim , April 3, 2014 8:53 AM
    Quote:
    I want 4k 120hz min, with 3d, and no need for WiFi or internet in it and at 50". For no more than $1k. That's when ill buy. No not some almost. But true 4k. It would be nice though if I could add a blutooth dongle for video receiving from my PC.
    Do you sit under 4' away from your TV or something?
  • 0 Hide
    iknowhowtofixit , April 3, 2014 8:54 AM
    I've had very good luck with Toshiba TVs in the past 6-7 years, purchasing for myself and recommending to friends and family. It is nice to see their picture quality is still top tier.
  • 0 Hide
    Steveymoo , April 3, 2014 8:54 AM
    So uh, why does Dell charge the same for their 32" US again? This has twice the real estate, and similar (if not better) performance, but costs exactly the same.Anyone?
  • 0 Hide
    davidgirgis , April 3, 2014 9:11 AM
    Quote:
    So uh, why does Dell charge the same for their 32" US again? This has twice the real estate, and similar (if not better) performance, but costs exactly the same.Anyone?
    I guess the ultimate in picture quality right now is 4k at 60Hz. The Dell can connect to your computer via Display Port 1.2 to achieve this, but this TV cannot. It's rather a future proof concept that will accept an HDMI 2.0 capable 4k set-top player.
  • 0 Hide
    Zeroplanetz , April 3, 2014 9:19 AM
    Quote:
    Quote:
    I want 4k 120hz min, with 3d, and no need for WiFi or internet in it and at 50". For no more than $1k. That's when ill buy. No not some almost. But true 4k. It would be nice though if I could add a blutooth dongle for video receiving from my PC.
    Do you sit under 4' away from your TV or something?
    no. My point is I don't need or want all that extra stuff. When I can add my own WiFi and internet for far far less than they offer. I want great screen with great refresh and 3d ability. Everything else is meh. I don't want some android chrome or apple in my tv either. If they want to truly go somewhere with tvs, let us wirelessly sync into the tv with what we want. My PC is within 30ft of my tv soo...
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