Wednesday, November 24th 2010

LG Introduces 23-inch 240 Hz IPS LCD Panel for Monitors

LG Display, a leading innovator of TFT-LCD technology, announced today that it has launched the 23-inch 240Hz LCD for monitors (dual monitor and TV use) that refreshes at a rate of 240 frames per second to deliver clear picture quality with no ghosting effect.

The industry have been engaged in a heated race to improve the motion picture response time (MPRT), unveiling products with refresh rates of 120Hz or 240Hz which are respectively twice and four times as fast as broadcast signals (60Hz). However, the technology has mostly been applied to LCD panels for high-end TV panels that are 40-inch or larger. This is the first time that 240Hz technology was applied in a 23-inch product under mass production.
The full HD 23-inch 240Hz LCD panel was developed by combining 120Hz technology (refreshes 120 images per second) with scanning backlight technology which enables a backlight to be repeatedly turned on and off.

Boasting a refresh rate that is four times higher than regular 60Hz monitors and twice as high as 120Hz monitors, the 240Hz LCD significantly reduces motion blur to make it less strenuous on the viewer's eyes and deliver true-to-life images.

LG Display's copper bus line technology was employed for fast processing of vast amounts of image data. As a result, the product has an motion picture response time of 8ms (millisecond), akin to a large premium TV, to eliminate motion blurring for fast moving images. Moreover, the 240Hz LCD features IPS (In-Plane Switching) technology for no distortion in color or images from any viewing angle which makes products ideal for TVs.

In the past, monitors in the 20-inch range were mainly used for word processing, but expansion of the multimedia environment has extended their application to games, videos, and even second TV sets. The 23-inch 240Hz LCD panel from LG Display should allow consumers to enjoy vibrant images and picture quality they expect from a large-size TV on their monitor or a smaller, second TV.

Ha Hyun Hwoi, LG Display's VP and head of the IT business unit, noted, "This product was designed to meet expectations of consumers who are already used to superior picture quality and high motion picture response time. LG Display will continue with efforts to introduce products that deliver new value to our customers and consumers."

According to research firm DisplaySearch, the market for 26-inch and below LCD products, which are primarily for dual monitor/TV use, is expected to grow by more than 20% from 49 million units in 2009 to 60 million units in 2010.
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53 Comments on LG Introduces 23-inch 240 Hz IPS LCD Panel for Monitors

#1
ShogoXT
240hz is also good if you are watching media played at 24fps. On computer even with programs like Reclock, media still does not play completely smooth unless your refresh rate is a multiple of 24.
Posted on Reply
#3
Mussels
Moderprator
Bjorn_Of_Iceland said:
Yeah, that.. I can distinuguish what 60fps is, yes... but from what I read before, the eye can see just 30 fps.. its just at 60fps, a frame render is doubled and gets sandwiched in between, leaving it longer on screen, and giving the illusion of smoothness.. explains why I see 30fps in the real world, but on a screen, a smooth animation can be done.. and for crts, that light which flickers at the back.. which flashes in our eyes.. "feeding" it (the eye) with a refreshed picture.

Not sure about you guys, but for me, when a person from walks accross me, he seemed to look like 30 fps-ish
no, the fact that you can see a difference means you can see a difference. you're looking too far into it.


if your eyes could only see 30, you would NOT be able to see ANY difference at all.
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#4
Bjorn_Of_Iceland
Mussels said:
no, the fact that you can see a difference means you can see a difference. you're looking too far into it.


if your eyes could only see 30, you would NOT be able to see ANY difference at all.
Yeah makes sense. In anycase, Ive seen one of those high hz lcd monitors, and it blew me away
Posted on Reply
#5
ShogoXT
rickss69 said:
So this would be just hype? http://www.a-power.com/product-19347
I dont see anything special about that monitor. Its just another TN film LCD monitor, LED backlit, and 120hz. Quite common nowadays.

The one in this topic is IPS. IPS is what the Dell and Apple 30inch displays are, along with some big screen TVs (others are PVAs, Samsungs own high quality panels (there are others too)). TN film is what you see on most PC monitors, except for expensive displays.
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#6
Mussels
Moderprator
ShogoXT said:
I dont see anything special about that monitor. Its just another TN film LCD monitor, LED backlit, and 120hz. Quite common nowadays.

The one in this topic is IPS. IPS is what the Dell and Apple 30inch displays are, along with some big screen TVs (others are PVAs, Samsungs own high quality panels (there are others too)). TN film is what you see on most PC monitors, except for expensive displays.
yup yup.


IPS is the king for quality LCD panels, so a 120Hz IPS is actually a great thing.

pity its not a bit bigger, however.
Posted on Reply
#7
DaedalusHelios
Wile E said:
That's not right either. It varies from person to person. It also depends on the medium or the game. Most can see difference to around 80, then everything seems the same after that. That's not set in stone tho.

I'm ok at anything above 45 in most games. In some, anything below 60 is choppy.
No, but they are related. If the refresh rate is 60hz, you can only see up to 60fps on the screen. It can only change the picture 60 times a second. The reason is irrelevant.
Below 30fps for prolonged periods makes me nauseated and it has made me vomit on a few occasions. That is partially why I don't play console games. I notice the flicker of CRT monitors at even 100hz. It gives me eyestrain if used for prolonged periods. Some people are more sensitive then others. :(
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#8
Bjorn_Of_Iceland
DaedalusHelios said:
Below 30fps for prolonged periods makes me nauseated and it has made me vomit on a few occasions. That is partially why I don't play console games. I notice the flicker of CRT monitors at even 100hz. It gives me eyestrain if used for prolonged periods. Some people are more sensitive then others. :(
Ive that officemate as well, 60hz was giving him some sort of vertigo, administration had to supply him a 120hz for his workstation.. spoiled basterd :D
Posted on Reply
#9
LAN_deRf_HA
By some measures 1000+ fps may be needed to truly give a display of motion a life like image, akin to looking through a window at something happening outside it. I think the way our eyes and our brains work make it much more complicated than people are aware. An example might be that scrolling on my display, despite being 60hz, looks much better when I set firefox to a 240hz refresh rate. I think there's timing issues or something that can be smoothed out by absurd fps, and I think something similar happens with our eyes/brains.
Posted on Reply
#10
Wile E
Power User
DaedalusHelios said:
Below 30fps for prolonged periods makes me nauseated and it has made me vomit on a few occasions. That is partially why I don't play console games. I notice the flicker of CRT monitors at even 100hz. It gives me eyestrain if used for prolonged periods. Some people are more sensitive then others. :(
30fps on most games gives me a terrible migraine after about an hour. Crysis is the only one that doesn't. They got their motion blur just right.

And while related in terms of framerate, crt refresh flash is a little different than pure frame rate as well. I also get a headache at 100hz on a crt, but I can't see a difference between 80 and 100fps on said screen.

LCD monitors aren't susceptible to that type of flash tho, so frame rate and refresh rate are more closely related to the human eye.

In other words, nothing is set in stone. It's pretty much all hit and miss on a per person basis.
Posted on Reply
#11
Mussels
Moderprator
below about 40FPS gives me a headache in about 5 minutes, i'm one of those that aims for 60 constant (or as constant as possible)


contrary to popular opinion i find it worse in RTS games - the high speed scrolling in combat doesnt bode well for jerking.
Posted on Reply
#12
Wile E
Power User
Mussels said:
below about 40FPS gives me a headache in about 5 minutes, i'm one of those that aims for 60 constant (or as constant as possible)


contrary to popular opinion i find it worse in RTS games - the high speed scrolling in combat doesnt bode well for jerking.
Oh, I get a regular headache relatively quickly, but I get a full blown migraine after an hour. I'm used to regular headaches, so they don't bother me. Migraines do. lol.

I don't play RTS, so I can't relate. I do know my sensitivity depends heavily on the games I play tho. On Borderlands, anything below 55 or 56 is horribly jerky, but I have played other games at 45fps, and they still played smooth.
Posted on Reply
#13
Mussels
Moderprator
Wile E said:
Oh, I get a regular headache relatively quickly, but I get a full blown migraine after an hour. I'm used to regular headaches, so they don't bother me. Migraines do. lol.

I don't play RTS, so I can't relate. I do know my sensitivity depends heavily on the games I play tho. On Borderlands, anything below 55 or 56 is horribly jerky, but I have played other games at 45fps, and they still played smooth.
in an FPS you tend to pan smoothly. in an RTS, you're zigzagging left right up and down when you're scrolling around. if the FPS is low, its throwing the image all around instead of scrolling like it should.
Posted on Reply
#14
LAN_deRf_HA
Well figured out why panning sucks.
Most film is recorded at 24 frames per second, but your LCD TV probably either displays at 60 fps or 120 hz (hertz is just a measurement of frequency per second). There are three main ways to cope with this.


First is to simply display each frame longer, this is the oldest technique in LCD tech. However, its undesirable side effects include the possibility of motion blur, or of judder. Judder is an artifact of adjusting the framerate and it looks like a sort of stutter in movement that would otherwise be smooth (a slow pan, for instance).


The second technique is one used on Plasmas and CRT TVs. Instead of showing a bright image the whole time, they display the frame, then a short frame of either darkness or a very dimmed picture. This alleviates much of the issue with judder and motion blur as it allows your brain to fill in the gap faster than you can consciously notice. It is also an old technique, and is used in theaters. It provides the traditional cinema feel.


The most recent and advanced technique is motion interpolation. Motion interpolation is a process by which your TV analyzes the current frame, and the next frame, then creates an average. It inserts these averaged frames in between. The result is extremely smooth motion with no motion blur and judder becomes almost non-existent. There are a few technical issues with this, including the possibility of ghosting or artifacts in rare cases. Also the smooth movement this creates is slightly disconcerting.
If they've perfected that last one I want it in my next display. Slow pans are really annoying as is.
Posted on Reply
#15
Unregistered
If you go migraine or headaches is not because of the refresh rate or fps trust me, :)))))), It's because you play for too long, hahahaha!! You're overreacting to much guys. Stop acting like little kids! :))))))))
#16
Wile E
Power User
TAViX said:
If you go migraine or headaches is not because of the refresh rate or fps trust me, :)))))), It's because you play for too long, hahahaha!! You're overreacting to much guys. Stop acting like little kids! :))))))))
What the hell are you on about? Who is overreacting or acting like kids? I think you are misinterpreting something here. We are just carrying on a normal discussion.

Anyway, It is DEFINITELY from flicker or low framerates for me. I can play all day on at 60fps on an LCD, or on a high refresh rate (over 100Hz) CRT, without a headache at all.

I've tested this out on myself to make absolutely sure what was causing my headaches. If I drop the framerate on any type of screen, I have a headache in minutes, if I drop the refresh rate on the CRT but keep the framerate at 60, I get a headache in minutes. This is a 100% fact for me in particular. I can't comment on anyone else tho.
Posted on Reply
#17
pantherx12
TAViX said:
Depending on the dude, can be between 28 to ~ 32 images/second. The thing is, that from more than 30 frames/sec, the eye(brain?) interpolates the image, and that makes it more fluid.;)
But then again, I like more than 30fps on a game. But more than 50 is a waste.....Trust me, I play since Wolfenstein 3D :D
http://www.games.net/features/images/116401_2.jpg
I'm fairly sure humans see more than 28-32, other wise there's a whole bunch of normal stuff we wouldn't be able to see properly XD

The human eyes frame rate actually varies, if dark conditions it's lower, if your focusing on a single object in a scene it can be higher, peripheral vision has a high "frame rate" than the rest of the eye too.

There has been studies that have shown fighter pilots to be able to see a single flashed image up amongst some 200fps footage, if we only saw at 30 frames it just wouldn't be possible.


You can test your eyes own frame rate by making some 30 fps videos, some 45fps and 60 fps and so on and so on, and get a friend to randomly choose a frame to put a disgusting picture :laugh:


It's all situational and dependant on how "aware" the individual is : ].

Sorry for poor sentence structuring, not my forte :laugh:
Posted on Reply
#18
Unregistered
Wile E said:
....
I've tested this out on myself to make absolutely sure what was causing my headaches. If I drop the framerate on any type of screen, I have a headache in minutes, if I drop the refresh rate on the CRT but keep the framerate at 60, I get a headache in minutes. This is a 100% fact for me in particular. I can't comment on anyone else tho.
I wasn't talking about CRT refresh rate! You are talking about apples I was talking about mellons. Wake up!:banghead:
#19
DaedalusHelios
TAViX said:
If you go migraine or headaches is not because of the refresh rate or fps trust me, :)))))), It's because you play for too long, hahahaha!! You're overreacting to much guys. Stop acting like little kids! :))))))))
It is medical. Not psychological. Kind of like motion sickness, vertigo, and so on. Migraines are horrible. I only had them growing up every month or so related to stress. Migraines can be intense enough for some to even commit suicide. I wouldn't wish it on anyone. I am glad I haven't had one in eight years personally. Wile E might not be so lucky. :(

Hopefully this new monitor tech reduces eye strain. I might end up getting one of its slightly larger variants.
Posted on Reply
#20
Wile E
Power User
TAViX said:
I wasn't talking about CRT refresh rate! You are talking about apples I was talking about mellons. Wake up!:banghead:
I was talking about BOTH refresh rate AND fps.

Fps lower than 40 gives me a migraine, PERIOD. The ONLY exception to this is Crysis.

I can play for 8 hours straight at high fps and high refresh with no headache, but I get a migraine after only an hour at low refresh or framerate.

My migraines ARE NOT caused by gaming for too long.

So please, kindly STFU, and step out of this thread, until you actually learn how read, comprehend, and then post, because you clearly have no clue what the hell you are talking about.

DaedalusHelios said:
It is medical. Not psychological. Kind of like motion sickness, vertigo, and so on. Migraines are horrible. I only had them growing up every month or so related to stress. Migraines can be intense enough for some to even commit suicide. I wouldn't wish it on anyone. I am glad I haven't had one in eight years personally. Wile E might not be so lucky. :(

Hopefully this new monitor tech reduces eye strain. I might end up getting one of its slightly larger variants.
Nope, not that lucky at all. I still get one or two a month. Sometimes they last for days. I live off of Fioricet during those episodes. It's the only way I can function.

That's why I'm so picky about framerates. I prefer to avoid migraines at all costs. lol.
Posted on Reply
#21
Unregistered
Wile E said:

So please, kindly STFU, and step out of this thread, until you actually learn how read, comprehend, and then post, because you clearly have no clue what the hell you are talking about.
No need to respond to this. Your level of intelligence and good behavior is obviously bellow the low-average of this forum, so you can continue as you please. :laugh:
#22
Mussels
Moderprator
TAViX said:
No need to respond to this. Your level of intelligence and good behavior is obviously bellow the low-average of this forum, so you can continue as you please. :laugh:
actually no. he knows exactly what hes talking about, he's just saying it in a rude manner.
Posted on Reply
#23
Unregistered
Never heard of anyone having headaches because low fps and low refresh rates on LCD displays (low fps = frustration). Only if they were playing more than 4-5 hours/day...and that's because obvious reasons.:shadedshu

Mussels said:
...he knows exactly what hes talking about,...
Somehow I doubt it very much....:wtf::ohwell:
#24
Wile E
Power User
TAViX said:
Never heard of anyone having headaches because low fps and low refresh rates on LCD displays (low fps = frustration). Only if they were playing more than 4-5 hours/day...and that's because obvious reasons.:shadedshu
Oh, so just because you never heard of it, it doesn't happen? Are you a doctor or some kind of scientist in this field?

Ummm, no, that's not how it works. Low fps can cause eye strain, which in turn, leads to migraines. I'm not the only one I know of that this happens to, either.

So again, I ask you to please know what you are talking about, before you post.
Posted on Reply
#25
Unregistered
Wile E said:
Oh, so just because you never heard of it, it doesn't happen? Are you a doctor or some kind of scientist in this field?...
Oh no! But it seems that You are! You know everything and you are right about everything. Forgive me, I'm not worthy!!! :respect:
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