Site Links

Waddya Want?

Posted Tue Jun 10, 2008, 0:46 AM ET

A couple of weeks ago, I got an e-mail from Bogeun Chung, general manager of the LCD TV product-planning team at LG's headquarters in Seoul, Korea. He wrote that he would be passing through L.A. with one of his engineers on Monday, June 9, and asked if we could meet at Grayscale Studio, the video-testing facility for UAV and Home Theater. I value any personal contact with manufacturer representatives, so I quickly agreed. Little did I know how interesting that meeting would turn out to be...

We started at my favorite Mexican dive, where Chung asked for the hottest salsa they had. (He thought it was still pretty mild, which goes to show how hot things can get in Korea!) As we munched fish tacos, Chung and chief research engineer Mun-Sik Bae explained that they designed the latest LG LCDs—the LG60 line (pictured above)—to deliver the most accurate video reproduction possible from an LCD TV.

Chung noted that many manufacturers aim at producing an "emotional" picture, which is code for too bright, too blue, and oversaturated, whereas his goal is accurate adherence to the BT.709 color gamut and D65 grayscale. When shown side by side, he said that most uneducated consumers prefer the "emotional" approach, but once they understand what's what, they clearly see the superiority of an accurate image.

Unfortunately, I didn't have an LG60 on hand that we could play with. Tom Norton reviewed the 42-inch version for Home Theater's August issue, but it was at the photographer's studio. However, we did have Tom's measurements, which confirmed that the 42LG60 exhibited exceptionally accurate colors and grayscale, especially after calibration, though even the pre-cal results were better than most. It's only real technical drawback was a relatively high black level, which Chung and Bae acknowledged was due to LG's use of IPS (in-plane switching) LCD panels.

After lunch, we went back to Grayscale Studio, where Bae showed me a simulation of the LG60's menu system on his laptop. Among the most impressive options is a 10-point grayscale calibration system—separate, independent RGB controls for 10 IRE, 20 IRE, and so on up to 100 IRE. You can also choose to calibrate with the standard RGB gain and offset controls, but the 10-point system avoids the common problems associated with that approach. Another sophisticated option is the color-management system, which lets you tweak the saturation and hue of the three primaries and three secondaries.

I expect to get a 47-inch LG60 for review in the next couple of weeks, and I look forward to putting it through its paces. Meanwhile, Chung and Bae asked what I would like to see in the next generation of LCD TVs beyond the LG60. The first thing that came to mind was a "blue-only" mode, which shuts off the red and green channels. This is very useful for setting the color and tint controls and a far sight better than using a notoriously unreliable blue filter. Heck, why not include a green-only and red-only mode as well? With the extensive color-management system, that would come in mighty handy as well.

They wondered if including test patterns in the TV's firmware would be useful. At first, I thought not, since I would want to calibrate the set from the source I would then use to play content. But Chung reminded me that you can't calibrate from a broadcast source such as a cable or satellite box, which led me to think that internal test patterns might be useful for that application.

As I was writing this blog, it struck me as a unique opportunity for our readers to help influence the development of future video displays. So I ask you the same question: What features and capabilities would you like to see in LG's next generation of LCD TVs? I invite you to post a comment here or send me an e-mail at the address below. I'll compile the responses and pass the information on to Chung and Bae. Who knows? Your idea just might end up in an LG LCD.

If you have an audio/video question for me, please send it to scott.wilkinson@sourceinterlink.com.

Permalink  ::  Blog Home

Previous Post | Next Post >

Reader Comments 

Posted Tue Jun10, 2008, 11:07 AM — By Kris Deering

I would love to see LG adopt a local dimming technique similar to what Dolby is working with Sim2 on. This provides a nearly infinited contrast ratio and the ability to do high dynamic range imagery.

Posted Tue Jun10, 2008, 1:47 PM — By Scott Wilkinson

Great idea! Why didn't I think of that up front? Probably because it's far more involved than simply including new features in the firmware, which was the focus of our discussion. But LED backlighting with local dimming is a great technology that certainly addresses the black-level issue, and I'll be sure to pass the idea along.

Posted Sun Jun15, 2008, 10:32 AM — By Andrew

I second the notion from Kris for local dimming. One of the reappearing shortcomings of LCD is their less than spectacular black level. Local dimming does a lot to put them on more equal footing with plasma. Another feature I'd love to see would be to show that when manually selecting 24fps you have the option for selecting 23.976Hz or doubling to 47.952Hz.

Posted Tue Jun17, 2008, 2:53 PM — By David Graham-Costain

I third the LED backlighting and wish that ANY manufacturer would sell a set that comes from the factory already calibrated. Plug and play as it were.

Posted Tue Jun17, 2008, 5:08 PM — By Bruce in CO

I agree that there should be a default, either straight out of the box or as a menu selection, for a properly calibrated picture according to the industry standards - not each company's marketing department. I would also like a selection for a picture that makes a reasonable adjustment for a high ambiant light condition, such as a family room. Auto adjustment would be nice, but baby steps first.

Posted Tue Jun17, 2008, 5:16 PM — By Bruce in CO

It would also be great to have direct selection of sources (minimum of 4) on the remote. Why this is even an issue is crazy. One other thing to pass along - as a consumer it is wonderful that they are even asking the question. LG honestly wasn't on my short list of products to consider, but they are now.

Posted Fri Jun20, 2008, 2:45 PM — By Jim P

I'll second Bruce's comment on the direct selection of sources. My trusty Zenith (LG-made) HDTV had this as a hidden feature (codes existed but weren't on the remote) and it was one reason that I bought the set. I'm also very pleased to see LG pursuing *accurate* video reproduction and seeking out feedback on what to include in future generations of their equipment.

Posted Sat Jun21, 2008, 7:06 PM — By Robert from Toronto

I would like to second and third the nominations for a calibrated setting out of the box (ISF, please), and LED backlighting with auto dimming, respectively. I don't believe LCD's will approach the "cinematic-ness" and the black levels and shadow detail of plasma's (i.e., Pioneer Kuro's) until these features become more mainstream and affordable. Hmm, didn’t Pioneer recently announce they were going to start a line of LCD’s. Maybe there’s hope yet...except on the $$$ front.

Posted Wed Jun25, 2008, 7:50 AM — By ChrisH

What I would like in displays is something similar to Audyssey on receivers. Include a small calibration device that can plug into somewhere on the display and then it brings up an automatic calibration routine that will go though and calibrate it's self. I'm sure it would add something to the cost, but if it starts on higher end TV's and works the way down, it would be great. You can get a decent screen calibration device and software for a PC for around $100 (Pantone Huey), so it seems they would be able to do this for a reasonable cost.

Posted Wed Jun25, 2008, 12:16 PM — By Jason Carey

Great article, we are just installing LG70's on a job and we we're told that the remote in and RS232 conections work thus eliminating the need for UGLY IR sender receivers in the front. Unfortunately this is not the case the RS232 conection does everything but control volume????? and the IR in is only for servicing techs but in their own advertisement this is not mentioned just the ability to use it. My business partner is friends with the owners of LG's son and we would love to support them as the panels have a great picture but in America you should get what is advertised. This is a thumbs down unfortunately

Add Comment

Name (Required):

Email (Required, will not be shown to public):

Comment (Required, max chars: 1024):

You have characters left.

Type the characters you see in this picture

  

Sponsored Technology Center

Stereophile    ::     Home Theater    ::     Ultimate AV    ::     Home Theater Design    ::     Shutterbug    ::     Home Entertainment Show
Home/News • Print & Web Media Kit • Privacy • Terms of Use • Contact UAV
RSS News & Reviews • RSS Blogs

Copyright © SOURCE INTERLINK MEDIA All rights reserved.