LG 47LH90 LCD HDTV Review - Motion

Motion Summary
Editorial Note: This is a review of the LG 47LH90. Test results are for this model, but should indicate the general performance of other sizes in the LH90 series. The LH90 series also includes the 42LH90 and the 55LH90.  Read here for more details on series differences.
• 240Hz mode helps with blur reduction, but wasn't especially impressive. • The 240Hz mode sometimes created a lot of artifacting issues. • Remember to turn on Real Cinema mode for 3:2 pulldown viewing. • Supports 24p content. • Testing done using DisplayMate Software.
	Color Accuracy	Page 5 of 18	Viewing Effects

Motion Smoothness (7.88)

Blur is significantly reduced by the 240Hz mode. We didn't really see much improvement between the "high" and "low" settings, however, so you should probably stick to low, given the artifacting the feature causes. Also, 240Hz causes some crazy artifacting in movies.

With 240Hz on low, the TV did pretty well with 1080p playback. We saw minor blurring, which lead to some lost detail, but nothing major. We saw a lot more blurring on 1080i playback, unfortunately, regardless of the 240Hz setting. It wasn't so much to totally ruin the 47LH90's otherwise good score in this area, but it did bring it down a point or so.

Motion Artifacting (7.13)

The 240Hz mode has the potential to cause some serious artifacting issues, but as long as you keep it set to low, you should be ok for artifacting issues. On 1080p playback we hardly noticed any issues at all, just some minor shuddering. Solid blocks of color might distort slightly as they move across the screen, creating little tails behind them in addition to the normal shadowing we typically see.  On 1080i playback, the shuddering got significantly heavier, so bad that fine patterns had portions that flashed. Fortunately, although these issues were noticeable, they were fairly rare in occurrence.

3:2 Pulldown & 24fps (7.50)

On our 3:2 pulldown and 24p tests, we put Real Cinema Mode on, which helps reduce judder and artifacting. We also switched off every flavor of 240Hz, because they caused all kinds of flashing badness.

The 47LH90 did well on our SMPTE pattern test, with only rare, random instances of fine patterns flashing. A second test uses footage of a slow pan across an empty stadium. Here, we noticed a crawling effect over the backs of the seating that was a bit worse than what we typically see from a TV in the 47LH90's class.

Other Models in the LH90 Series
This is a review of the LG 47LH90. The other sizes of HDTVs in this series should be similar in terms of performance and usability. For details about any differences, click on the image to jump to the Series Comparison page.
42LH90 42 inches	47LH90 47 inches	55LH90 55 inches