Overclock.net › Forums › Components › Monitors and Displays › Overclockable 2560x1440 PCB
New Posts  All Forums:Forum Nav:

Overclockable 2560x1440 PCB - Page 3

post #21 of 33
Seeking an explanation of something then adding the explainer to your ignore list isn't very constructive. tongue.gif

Of course I've gamed in 3D. Didn't enjoy it that much, it isn't my cup of tea. I review 3D monitors so have had plenty of experience in that field - I'll put my hands up and say 3D TVs are not really my area at all.

I understand what you are saying completely. You get TVs that can output stereoscopic 3D by giving a discrete 60 frames per second in each eye. Each frame is displayed sequentially (hence the name 'Frame Sequential') so that each eye receives 60 frames every second (there are 120 in total). You can't directly compare the capabilities required to 'smoothly' display 2 lots of 60 frames per second to one lot of 120 frames per second. I know that many of these 3D TVs have reasonably low crosstalk - if you've paid attention in the 'LightBoost' thread and others along those lines you'll see that this has a lot to do with the fact the screen and glasses pulse (flicker) on and off rapidly and not really entirely down to the pixel response times. The same display is not necessarily going to be any good for normal 'sample and hold' 2D viewing or straight-up 120Hz strobing.
Edited by PCM2 - 2/23/13 at 1:23pm
post #22 of 33
Quote:
Originally Posted by PCM2 View Post

Seeking an explanation of something then adding the explainer to your ignore list isn't very constructive. tongue.gif

Of course I've gamed in 3D. Didn't enjoy it that much, it isn't my cup of tea. I review 3D monitors so have had plenty of experience in that field - I'll put my hands up and say 3D TVs are not really my area at all.

I understand what you are saying completely. You get TVs that can output stereoscopic 3D by giving a discrete 60 frames per second in each eye. Each frame is displayed sequentially (hence the name 'Frame Sequential') so that each eye receives 60 frames every second (there are 120 in total). You can't directly compare the capabilities required to 'smoothly' display 2 lots of 60 frames per second to one lot of 120 frames per second. I know that many of these 3D TVs have reasonably low crosstalk - if you've paid attention in the 'LightBoost' thread and others along those lines you'll see that this has a lot to do with the fact the screen and glasses pulse (flicker) on and off rapidly and not really entirely down to the pixel response times. The same display is not necessarily going to be any good for normal 'sample and hold' 2D viewing or straight-up 120Hz strobing.

Are you referring to shutter-glasses implementation of 3D here? Or alternate polarity 3D?
post #23 of 33
Shutter glasses, yes.
post #24 of 33
Quote:
You can't directly compare the capabilities required to 'smoothly' display 2 lots of 60 frames per second to one lot of 120 frames per second.

Just curious... why not, for active shutter 3D? Is not active shutter 3D simply a 120hz signal, which using an active shutter (glasses) to alternatively block each eye?
post #25 of 33
Yes that is correct, Kevinsbane.

There are times in life when you have to hold your hands up and admit you were wrong. It`s not an easy thing to do, but this seems to be one of those times. My mind was not at all focused when posting yesterday. I had a lot on my plate and have also been suffering from man flu and lack of sleep. A debilitating combination.

I`ll try to clarify and correct some things, now my brain is at least semi-functional.

If a screen is outputting frame sequential 3D and active shutter glasses are used then the screen does have to display 120 frames per second for anything approaching a smooth experience. 60 frames are seen by each eye, sequentially. To perform this function without crosstalk a screen must be able to respond quickly enough to handle 120 frames per second without frame overlap. It must also be free from any significant trailing.

Now as I said, TV screens are not really my area of expertise. Active 3D models with IPS panels do exist. I was under the impression, though, that frame interpolation is used to achieve the 120Hz. The content they are designed to work with is outputted at well below 60fps so they don`t need to display 60 discrete frames per eye. When you feed them `faster` content, for example connect them to a PC, they couldn't output 120fps (or accept 120Hz input) regardless of resolution. But I am not sure if this assertion is correct.

Regardless of this, the active 3D IPS TVs use specific sub panel types that haven't been seen on PC monitors. Panasonic`s IPS Alpha and suchlike. They also use something called 'advanced pre-charge driving' which is a backlight scanning and interpolation technology that reduces crosstalk. Essentially this is more responsive and hence more suitable for smooth 120Hz 2D or 3D than any current PC IPS technology. There could be several reasons for this, but Panasonic have now switched to passive 3D for their IPS Vieras.

So yes, I think there is a distinction to be made with current IPS monitor technology and that used on some TVs. I struggled to articulate the consequences of this in a clear fashion. And ended up confusing myself as well, which didn't take much yesterday. Again, I'm sorry.
Edited by PCM2 - 2/24/13 at 12:18am
post #26 of 33
I ended up ordering one of these but I'm really debating canceling my order. The big reason is that I'm hearing that all of these overclocked LG panels have faint white or gray lines that float down the screen at certain circumstances when overclocked. I hear that it looks like the scan lines on older tvs. It sounds super annoying. I'm not that bothered with smoothness and responsiveness with my display capped to 59fps.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
post #27 of 33
Quote:
Originally Posted by BababooeyHTJ View Post

I ended up ordering one of these but I'm really debating canceling my order. The big reason is that I'm hearing that all of these overclocked LG panels have faint white or gray lines that float down the screen at certain circumstances when overclocked. I hear that it looks like the scan lines on older tvs. It sounds super annoying. I'm not that bothered with smoothness and responsiveness with my display capped to 59fps.

I dunno about him, but mine doesn't have scan lines that I can tell. Mine is, however, an original 2B Catleap though - not modded at all(well, I removed the stand) so that might explain it. Actually, my Catleap has some interesting properties too - like that I can see my BIOS perfectly fine even though most people with single-input Catleaps seem to have problems with seeing their BIOS.
post #28 of 33
Quote:
Originally Posted by BababooeyHTJ View Post

I ended up ordering one of these but I'm really debating canceling my order. The big reason is that I'm hearing that all of these overclocked LG panels have faint white or gray lines that float down the screen at certain circumstances when overclocked. I hear that it looks like the scan lines on older tvs. It sounds super annoying. I'm not that bothered with smoothness and responsiveness with my display capped to 59fps.

The scan lines I have don't actually "float down the screen". They don't move at all, they just cover the screen, and they're most visible in areas with solid colors. I'll try to get a picture of them, since that will probably be able to describe them much better than I can.

Edit: Pictures. These are taken at 110hz. The lines are definitely a lot harder to see in these pictures than in real life, but hopefully they can give you an idea of what they're like, at least. They seem to be about every 2nd row of pixels.

110hz


60hz


110hz


60hz


Backlight



There is a deliner tool that helps with the lines on the desktop, at least. Doesn't work in fullscreen games though.
Edited by TarballX - 2/24/13 at 4:24pm
post #29 of 33
Well I just pulled the trigger on a PCB set for my Crossover LED-P monitor.
Hopefully I can get 100hz+ on it! smile.gif

Still wondering a bit how I should do it though, but I hope it won't be to much trouble fitting it in.

Even though if I can only get say 90hz, it should be a massive upgrade for me as I am very sensitive for lag and such!
The up/downgrade
(14 items)
 
  
CPUMotherboardGraphicsRAM
|Intel 6800K @ 4ghz 1.24v| |Asus ROG Strix X99| |Gainward GTX 1070 @ ~2ghz| |4x4gb Corsair XMS 3000mhz CL14| 
Hard DriveOSMonitorKeyboard
|840 Pro 256gb| |OCZ Vertex 2 120gb| |WD Red 2tb| |Windows 10 Pro x64| |27" QNIX QX2710 @ 2560x1440 120hz| |Logitech G810 Orion Spectrum RGB| 
PowerCaseMouseAudio
|EVGA SuperNOVA 1000 G2| |Corsair 750D| |Logitech G502 Proteus Spectrum RGB|  |JBL L890 speakers| 
AudioAudio
|Emotiva XDA-2 receiver| |2x Advanced Acoustic MAA-705 @ 200w 8ohm| 
  hide details  
Reply
The up/downgrade
(14 items)
 
  
CPUMotherboardGraphicsRAM
|Intel 6800K @ 4ghz 1.24v| |Asus ROG Strix X99| |Gainward GTX 1070 @ ~2ghz| |4x4gb Corsair XMS 3000mhz CL14| 
Hard DriveOSMonitorKeyboard
|840 Pro 256gb| |OCZ Vertex 2 120gb| |WD Red 2tb| |Windows 10 Pro x64| |27" QNIX QX2710 @ 2560x1440 120hz| |Logitech G810 Orion Spectrum RGB| 
PowerCaseMouseAudio
|EVGA SuperNOVA 1000 G2| |Corsair 750D| |Logitech G502 Proteus Spectrum RGB|  |JBL L890 speakers| 
AudioAudio
|Emotiva XDA-2 receiver| |2x Advanced Acoustic MAA-705 @ 200w 8ohm| 
  hide details  
Reply
post #30 of 33
Yeah, the lines in your picture seem far worse than my display. I really don't notice them thankfully.

The pcb is working out well for me.
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
My System
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k Gigabyte Z77X-UD5H MSI TF3 7950 Tri-fire Samsung 30nm 4x4GB 
Hard DriveOSMonitorKeyboard
Intel 320 160GB and a few samsung platters Windows7 x64 Catleap Q270 Rosewill mechanical 
PowerCaseMouseMouse Pad
Corsair AX850 Xigmatek Elysium Razer Deathadder Puretrak talent 
Audio
Xonar Essence STX 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Monitors and Displays
Overclock.net › Forums › Components › Monitors and Displays › Overclockable 2560x1440 PCB