LG Display plans to melt eyes with Trumotion 480Hz LCD TV
by Darren Murph 
posted Dec 29th 2008 at 10:22PM
LG Display Unveils the World's First "Trumotion 480Hz" LCD TV Panel
TV Panel Featuring Impressive 4ms Motion Picture Response Time to be Demonstrated at CES 2009
SEOUL, Korea--(BUSINESS WIRE--LG Display (NYSE:LPL, KRX:034220), a leading innovator of TFT-LCD technology, announced today that it has developed the world's first "Trumotion 480Hz" LCD TV panel, which has an impressive 480 refresh rate per second, accelerating the advent of ultra high-speed images, without sacrificing picture quality.
LG Display's 'scanning backlight' is the technology that enables a backlight to be repeatedly turned on and off to reduce motion blur. When combined with the company's 240 Hz technology, the display can refresh 480 images per second.
In addition, LG Display's "Trumotion 480Hz" display boasts an lower motion picture response time (MPRT)of 4ms, eliminating motion blurring for fast moving images and enabling a realistic, crystal clear picture. The display also makes dark images even darker and bright images far brighter - providing unparalleled, vivid picture quality. Moreover, it can reduce energy consumption by adjusting the backlight brightness.
"The world's first Trumotion 480Hz LCD TV panel is planned to hit the market in the second half of 2009. LG Display will provide its customers with unique, high-end products while delivering crisp picture quality for fast moving images," noted Mr. Eddie Yeo, Executive Vice President and Head of LG Display TV Business Unit.
LG Display will showcase its newest cutting-edge display technologies featuring improved motion picture response time (MPRT), eco-friendly displays and more in a private room at the Bellagio Hotel during the upcoming Consumer Electronics Show (CES) 2009.
Reader Comments (Page 1 of 1)
Irritant @ Dec 30th 2008 6:36AM
Am I not understanding something here? What's the point of these high refresh rates when the update rates of the images being displayed are unlikely to be greater than 60Hz (games consoles) or 30Hz for TV/video?
dagimp @ Dec 30th 2008 8:46AM
I'm also missing a point here. If the panel has a response time of 4 ms, that means it can "respond" 250 times per second. How on earth do you produce a 480Hz image if the pixels themselves can't operate above 250Hz.
Or, am I completely off base with this technology and the two values are not related in that way? Someone please chime in with a good explanation and or link.
John B @ Dec 30th 2008 8:47AM
WHY??!
How the hell is a 24fps (aka. 24 Hz) movie going to look better because I'm going to see each frame 20 times in a row?
THizzle7XU @ Dec 30th 2008 12:10PM
It doesn't. In fact, when I saw it in action (120Hz) on a film (24Hz), it made the movie look like it was recorded with a camera used for daytime soap operas.
Disciple83 @ Dec 30th 2008 9:17AM
Marketing gimmicks, kids, that's all. LG is trying to compete against plasma displays that argue their own 480Hz refresh rate, still unintelligible to the naked eye with the small exception of those people who get motion sickness from all the liquid, soap opera-looking movements on the screen. The only real benefit any of this mumbo-jumbo would have on any type of media would be if your xbox or ps3 could render games at full resolution with frame rates fast enough to warrant something like that, otherwise, it's wasted energy.
Tech companies have long understood the need for pushing ridiculous numbers in the consumers' faces. A classic case is the 1,000,000:1 contrast ratio, (why not 800,000:1? what difference does it make if i have a plasma that disables the pixel if it's black. It doesn't get any more contrasty than OFF does it?) Move along children, the bright shiny things are only here to distract you while the mean men steal all your money.
superhobo @ Dec 30th 2008 1:29PM
I don't think our eyes can see the difference above ~100Hz or so?
clara @ Dec 30th 2008 1:38PM
I'm guessing that althouh only 240hz is useful, the panel can run at 480hz. This could mean a few things:
- finer control in compensating for LCD speed. They already overdrive pixels to full on/off to push them faster to where they need to be, but it's brute force. If can modulate that change 2x-4x as many times per frame, you can more finely match the pixel driving signal to the actual pixel response to achieve the best quality pixel change time without over/under compensation; fewer artifacts, less blur. Additionally, larger (slower) luminance changes can be started earlier for those pixels that need it.
- video frames can be sent to the panel as soon as they're processed, reducing latency . This will also utilize the video processor more evenly over frames, allowing you to use a slower processor to achieve the same latency.
- accomodating 2x shuttering for 3D video. If you're watching film in 3D, this is 24x2 (L/R) = 48. This is not evenly divisible by 120, but 240 is. Actually... I guess this only justifies 240hz :).
- retinal persistence could be helped by interpolating to 480hz. Maybe.