back to Logo usat smarthome 3d00d0583dd95af3f7ce8dd6c5b121640f13c9e2513cef3241fb16a5d3f4960d
Tested by experts 06d9a64036647e73500f0390c533b110047acb1d8dfcda07834106364a611f86
televisions

LG 47LA7400 LED TV Review

A full-fledged feature fiend, but with picture quality that's more bark than bite

$1,799.99 MSRP 47 in.
Advertisement

Behind the Screens

Welcome to the science page, where we share our findings from the TV lab. We think our eyeballs are pretty great, but we need robots to get hard numbers, so with the help of Konica Minolta’s CS-200 chroma meter and LS-100 luma meter, as well as test patterns from Dr. Ray Soneira’s DisplayMate software, we collect the readings we need to give you fair, unbiased reviews.

Contrast

Not exactly black beauty

Since contrast ratio is a major part of a TV’s ability to produce lifelike content, this is one of our most important performance tests. This test compares a television’s peak luminance with its deepest black level, and since the LA7400 can’t get particularly dark, it received mediocre marks for this trial. We measured a measly black level of 0.26 cd/m2 , but a gleaming peak luminance of 293.90 cd/m2 , the latter of which saves its score, accomplishing an overall contrast ratio at 1130:1—acceptable, but far from exciting.

Advertisement

Color

A punchy palette

We test three aspects of a TV’s color performance: temperature, gamut, and curves. The LA7400 proved hit or miss throughout this series of trials.

As far as its gamut is concerned, which is a measure of how accurately the colors match the international standard for HDTV (Rec. 709), the LA7400 missed the mark a bit. Reds and blues are too punchy and oversaturated, which contributes to an overly vibrant, unnatural image.

With regard to temperature and color curves, things looked a little better. Testing revealed few visible temperature errors, and the flaws that did occur were at the darkest end of the greyscale, where they are least visible. Thus, deep shadows may suffer an orange hue—but you probably won't notice it. Curves, on the other hand, indicate how polished the transitions are from one hue to the next. We’ve seen smoother curves, but there is nothing major to complain about here. True, blues peak too soon, which means the most luminous blues will lack detail, but this is not a major problem.

Comparable Products

Before you buy the LG 47LA7400, take a look at these other televisions.

Viewing Angle

Front and center is the place to be.

As with many LCDs, off-angle viewing won’t do the LA7400’S picture quality any favors. By measuring the contrast ratio over and over along an arc, we can determine how far from the center of your TV you can be before the original ratio falls more than 50% below its reading.

In this case, if you sit at more than 24º from the center of the TV, the contrast ratio will degrade by more than half, which makes for a total viewing angle of just 48º.

News and Features

Samsung ifa 2015 hero 2

Samsung Plays It Safe at IFA—Gearing Up for a Big CES?

More streaming options for 4K on tap, but no major announcements.

Lg streaming hero

LG, Amazon Team Up to Bring HDR Content to 4K OLED TVs

LG's HDR-compatible OLEDs can now stream HDR from Amazon Instant.

Panasonic technics temp hero 2

Panasonic's "Grand" Plans for Technics Include Turntable

The Technics Grand Class Series home audio systems debut at IFA 2015.

Panasonic oled cz950 news

Panasonic Announces New Flagship OLED TV

Panasonic announced today a new 4K OLED flagship during IFA in Berlin.

Lg webos ifa 2015 hero

You'll Soon Be Able to Stream DirecTV to Select LG TVs

LG will upgrade select TVs to webOS 2.0 while also adding DirecTV access.

Cord cutting hero

Cable Subscriptions Plummet: Is This Cord-Cutting Critical Mass?

Most cable TV content is now available through streaming media.

Hisense news hero

Hisense Debuts New Premium ULED TV Lineup in NYC

Hisense ULED will compete with OLED and SUHD TVs for just $2,999.

Lg hdr oled hero

LG Unveils World's First HDR-Capable OLED Televisions

LG has just announced the new EF9500 series, two flat HDR OLED models.