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LG 47LW550T review

LG's new 47-inch 3D LED screen makes a convincing argument for passive 3D

Our Verdict

For

  • Impressive Smart TV functions
  • Excellent contrast level
  • Extensive picture adjustments
  • Fuss-free 3D implementation
  • Audio performance

Against

  • Crosstalk evident with some 3D material
  • Overall design could be improved
  • Passive 3D brings a drop in resolution

LG 47lw550t

Before we get onto the 47LW550T's 3D performance, it's worth noting that its hi-def 2D images are excellent.

LG claims a 5,000,000:1 contrast ratio for the 47LW550T, but our lab measured a real-world figure of 262,000:1. That's quite a big difference, but 262,000:1 is still impressive, putting it easily in the upper echelons of current LED TVs. And that objective figure translates to subjective viewing, too.

With Ridley Scott's Robin Hood on Blu-ray, the 47LW550T offers a well-contrasted picture that's capable of displaying peak whites and Emo-grade blacks simultaneously. The opening night-time scene, with torch-wielding villagers surrounded by the forest darkness, is therefore suitably atmospheric and immersive.

This excellent contrast ratio and black level comes courtesy of a stable edge-LED backlighting system (with local dimming) that manages to avoid any trace of light pooling. A 16-step greyscale pattern showed clear delineation without any crushed blacks. Even doubling up to 32 steps only resulted in the brightest whites failing to separate.

Colour performance is similarly commendable. With our own Picture Wizard-enabled preset, tones were bright, believable and full of subtlety. Reds managed to look red, rather than orangey. Again, a reference gradation test showed none of the blocking that afflicts less well-engineered screens.

The 47LW550T falls down slightly with motion. There is a noticeable loss of picture detail with fast horizontal pans; engaging the TruMotion frame interpolation tech, even on its low setting, resolved the problem immediately, but introduces predictable haloing around fast-moving objects. When Avatar's Sully takes control of his Na'vi for the first time and runs around like a loon, we were quick to dispense with TruMotion.

The 47LW550T isn't a disastrous performer with motion (it compares well with Philips 46PFL9705, but put it head to head with Panasonic's new TX-L42E30B and it comes second.

Switch up to three dimensions and the 47LW550T continues to raise a smile, but it isn't without its flaws.

Firstly, despite using passive technology, the 47LW550T still exhibits crosstalk. As always, it's dependant on the material, but anyone hoping this niggling 3D side-effect would be AWOL will be disappointed.

On the plus side, 3D glasses without active shutters means flickering pictures are a thing of the past. Watching Avatar 3D on the 47LW550T was a pleasure, and the fact that having ambient lights on didn't irritate the 3D delivery system was a welcome bonus.

The viewing angle is also good. Move around the room and the picture follows. The same cannot be said of Active 3D systems, where the eyewear can lose sync. However, go off-axis vertically and you begin to notice the horizontal ripples of the screen's filter, especially with bright material.

And what of the resolution loss? Well, it's certainly true that full HD 3D Blu-rays don't look as sharp as their 2D counterparts and if you get close to the screen you can clearly see where horizontal resolution has been chopped in half, but at a normal viewing distance it's much harder to spot.

And even with the resolution loss, the sharpness of the overall picture is impressive; losing half the vertical resolution doesn't mean it's suddenly back to DVD standards. It's more like Blu-ray lite. Whether or not that's good enough for you is a personal choice, but we'd suggest that the positives of the passive 3D system outweigh the negatives.

Tech Specs

Product TypeLED-LCD TV
Scan Format1080p
Standard Refresh Rate50 Hz
Digital TunerDVB-T (MPEG4)
Video Signal StandardHDTV 1080p
Number of HDMI Ports4
Number of SCART Interfaces1
Product FamilyLW5
3D Type3D
Brand NameLG
Screen Size119.4 cm (47")
Aspect Ratio16:9
Green CompliantYes
Green Compliance Certificate/AuthorityRoHS
EthernetYes
Ethernet TechnologyEthernet
USBYes
HDMIYes
Weight with Stand (Approximate)20.70 kg
Backlight TechnologyDirect LED
VESA Mount Standard400 x 400
Operating Power Consumption84.80 W
Dynamic Contrast Ratio8,000,000:1
RMS Output Power20 W
Electronic Program GuideYes
DLNA CertifiedYes
VGAYes
HeadphoneYes
Digital Audio OutputYes
Height with Stand746 mm
Width with Stand1121 mm
Depth with Stand256 mm
Number of Common Interface1
CI+Yes
Component VideoYes
SCARTYes
PC StreamingYes
Internet AccessYes
Media PlayerYes
Enhanced Refresh Rate100 Hz
Height678 mm
Width1121 mm
Depth23.5 mm
Brightness400 cd/m²
Sound SystemDolby Digital Plus, Surround Sound
Product SeriesLW5
Maximum Resolution1920 x 1080
FeaturesTeletext, Auto Program, Auto-off, Favorite Channel Selection
ManufacturerLG Electronics
Product Model47LW550T
Product Name47LW550T LED-LCD TV
Manufacturer Part Number47LW550T
Manufacturer Website Addresshttp://www.lge.co.uk
Marketing Information

Welcome to the Next Generation 3D TV from LG. The LW5 Cinema 3D Smart TV series provides the ultimate in-home entertainment to share with your family and friends by bringing the cinema 3D experience home. The LW5 series is available in a variety of screen sizes all with Smart TV - so you can watch the best of the internet on the big screen and access all your favorite media from multiple devices from the comfort of your living room sofa.

Package Contents
  • 47LW550T LED-LCD TV
  • Remote Control
  • 'AAA' Batteries
  • Nero MediaHome 4 Essentials CD
  • Owner's Manual
  • 8 x (M4 x 12) Screws
  • 3D Glasses
  • Composite Gender Cable
  • Component Gender Cable
  • SCART Gender Cable
SpeakersYes
Limited Warranty1 Year
Weight (Approximate)18.40 kg