3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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LG Has Announced an 84-inch 4K Ultra Definition 3D-capable HDTV

August 22nd, 2012 · 11 Comments · General 3D News

Today LG has officially announced what they call the world’s first 84-inch Ultra Definition (UD) 3D TV for the Korean market with the TV expected to start appearing in North America, Europe, Asia, and Latin America starting in September. What is interesting here is the fact that you get 4K resolution in 2D mode and more than Full HD in stereo 3D mode since the 3D TV set uses LG’s passive (FPR) 3D technology that essentially halves the vertical resolution in 3D mode. And the good news is that the 4K resolution (3840×2160) is actually fully supported by the HDMI 1.4 interface and thanks to the use of passive 3D technology you can also use the interface in 3D mode as well, though you’ll have to feed the TV set with Row Interleaved video data directly as HDMI 1.4 does not currently feature frame packaging support for more than 1080p resolution.

The 84-inch LG 84LM9600 Cinema 3D TV is definitely an interesting approach from LG as the company is clearly targeting to get a good market position among the 4K resolution TV sets even though they are still very far from becoming mainstream. And the good thing is that even the currently available technology allows them to support stereo 3D mode, though not in the full 4K resolution, but with more than enough pixels at 3840×1080 per eye for the 3D mode. 4K stereoscopic 3D support with active 3D TV sets at this time would be a problem due to the very high bandwidth requirements in order to push two frames at full 4K resolution, but with all the interest in 4K we are probably soon going to get a new revision of HDMI supporting frame packaged 3D at over Full HD resolution. The good thing from all this is that we are probably also going to have support for 1080p 60Hz frame packaged 3D mode sooner than later, so while 4K TV sets at every home is something still in the not so near future, we may all benefit from that even in the next generation of Full HD 3D-capable solutions.

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LG Passive 3D HDTV Colorbug Investigation and Fix in Stereo 3D Mode

February 24th, 2012 · 1 Comment · Other S3D Tech

Here is something interesting and useful for the owners of LG Cinema 3D HDTVs that are using them in stereo 3D mode together with their computers, a solution to getting rid of the annoying colorbug that the passive 3D TV sets from LG suffer from. You can thank our reader Shii who took the time to investigate the issue and find a solution for getting rid of it and especially for the detailed information and instructions, together with the modified INF driver that you can use.

Colorbug exists when PC sends to LG TV HDMI signal. Disabling extension block in EDID eliminates colorbug and PC sends DVI signal without extra HDMI information. The bad guy here – LG TV, not Nvidia. LG TV incorrectly receives HDMI signal in all input modes even in PC mode. When PC input enabled LG TV must disable all image enhancers but it doesn’t do this. The result – slightly blurred image. When we got one line of pixels, the lines over and under glows too and this causes colorbug. Glasses filters source line but don’t filter over and under lines!

Have in mind that the side effect from using this solution for getting rid of the colorbug issue on LG Cinema 3D TVs is that you will loose the audio over HDMI, so you will need to have it routed in another way to the speakers. So do not wonder where has your audio gone after installing the provided EDID override driver. And as a side effect using this solution will give you the ability to use Nvidia’s interleaved 3D Vision mode instead of the HDMI 1.4 frame packaged output with your LG 3D HDTV. The good thing about that is that instead of being limited to 1080p 24Hz 3D mode as you are when using the frame packaged method for 3D content transmission you would be able to play in 1080p 60Hz 3D mode when using the row interleaved mode. So if you are gaming on your 3D-capable passive LG 3D HDTV, then you will find this guide very useful…

You can read the detailed instructions for fixing the LG 3D colorbug here in the forum…

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LG’s Dual Play Feature to be Available on LG Cinema 3D HDTVs

September 2nd, 2011 · 9 Comments · Other S3D Tech

At the IFA trade show LG is all about 3D technology and even their theme is “DO IT ALL IN 3D”, however one of the interesting features they are demonstrating seems to be getting less attention that in deserves (LG are probably a bit to blame for that as they are not releasing a lot of details about it yet). I’m talking about LG’s Dual Play feature that they are showing with a racing game and Xbox 360 console – essentially using the 3D features of the LG Cinema 3D TVs to show two different views in 2D to two persons playing a game in multiplayer mode. This probably already reminds you about the upcoming Sony PlayStation 3D monitor and the SimulView technology it will have to allow pretty much the same thing on LG’s 3D TV sets and Xbox 360 consoles. The approach however is a bit different for these two, since Sony uses active shutter glasses and LG passive, although they both rely on the 3D capabilities of the displays. And the end result is a nice to have extra feature that Sony will initially support on the PlayStation 3 console and the PlayStation 3D monitor only and it may require extra optimizations to ensure compatibility with specific games. With the LG implementation demonstrated on an Xbox 360 console the end result should be pretty much the same, although the quality may be a bit lower as compared to the active solution that Sony will provide…

The Dual Play feature has to turn a split screen multiplayer game into two separate views each of them seen only by the first or the second player, but not just any game that has split-screen multiplayer mode will do. Have in mind that each player must wear passive glasses with matching polarizing filters, so instead of the left and right filters with different polarization that are typically found in each pair of glasses, each player will wear a pair with either two left or two right lenses getting the same image with both eyes. And you can get to use that extra feature without actually having to get anything special, you can even swap the lenses on two pairs of normal polarized glasses that you got with the LG Cinema 3D HDTV and get the required Left/Left and Right/Right pairs of glasses. Then all you have to do is activate a game’s multiplayer mode (compatible with that function) that will split the screen in two and then set the TV to use this Dual Play function. You may think that it should also work by just manually activating the Top/Bottom or Side by Side 3D input and you will get two different views for each player, but you are forgetting that for this to work you need to send squashed frame output and with multiplayer split screen you get the full frame that is just cropped to fit your part of the screen, meaning that if you try to do that you will get a distorted frame. So if you thought that this extra function would be possible on all passive 3D HDTVs, then you will have to think again as things are not that simple as they may seem. But we’ll have to wait a bit more until LG releases more details about which of their 3D HDTVs will support the Dual Play functions and what other requirements will be there besides the more specific glasses…

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