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Results: Viewing Angles And Uniformity

Toshiba 65L9300U: A 4K HDTV With HDMI 2.0 Support
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Off-axis image quality is very important in any large-screen HDTV. Since only one person can sit in the center seat, everyone else on the couch is forced to watch at an angle. Most manufacturers like claiming large viewing angles of 170 degrees or more. However, 45 degrees is realistic to us. Given a 65-inch LCD panel viewed at ten feet, getting five people in front of it is probably a practical limit if everyone wants a decent picture.

With that said, the 65L9300U looks good at the edge of our 45-degree cone. There is almost no reduction in brightness, and the color shift is limited to medium brightness levels only. We see a slight green hue in the 30- to 50-percent bars of the side-to-side view. This is a great TV for family viewing. A larger screen would be even better, and Toshiba obliges by offering an 84-inch model in the L9300U line.

Screen Uniformity: Luminance

To measure screen uniformity, zero- and 100-percent full-field patterns are used, and nine points are sampled. In a change from previous reviews, we’re now comparing the results to other monitors we’ve measured. First, we establish a baseline measurement at the center of each screen. Then the surrounding eight points are measured and their values expressed as a percentage of the baseline, either above or below. Those numbers get averaged. Remember that we're only able to test the sample each vendor sends us. Other examples of the same monitor can measure differently.

First up is black field uniformity.

Our eyes tell us that Toshiba's 65L9300U looks good, though our meter clarifies that the bottom edge of the screen is slightly brighter than the rest of the panel. This is typical of large edge-lit LCD/LED displays. Fortunately, there isn’t any visible blotchiness or corner brightness like we’ve seen on a few other HDTVs.

Usually the white field uniformity is better than the black. Here it's almost exactly the same, though. The bottom edge is the culprit again, reading slightly brighter than the rest of the screen area. On the bright side, the error is almost imperceptible.

Screen Uniformity: Color

To measure color uniformity, we display an 80-percent white field and measure the Delta E error of the same nine points on the screen. Then we subtract the lowest value from the highest to arrive at the result. A smaller number means a display is more uniform. Any value below three means a variation that is invisible to the naked eye.

Our test sample suffers from a subtle green tint across the bottom of the screen in an 80-percent white field pattern. It's not something anyone is likely to spot when viewing regular content. And another 65L9300U might very well measure better.

Display all 34 comments.
  • 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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