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#1 | Link |
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Advanced Member
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HDguru tests 75 displays for resolution, motion, etc..
http://hdguru.com/?p=187
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#8 | Link |
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Advanced Member
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The following Panasonic press release pretty much confirms that there was a 600 line limit with moving images on LCD. It looks like Panasonic has improved this, although it doesn't say how much more than 600 lines. Looks like HDGURU was spot on with his results. And it looks like the 1st gen implementations of 120hz were not done correctly.
http://panasonic.co.jp/corp/news/off...n070809-7.html "The new 37-inch LCD TV, TH-37LZ75, features the Full-HD IPS Alpha Panel, offering consistently clear pictures even when viewed off-center. The panel displays crisp fast-moving images, with a moving-picture resolution of over 600 lines, thanks to the new Full-HD W Speed that achieves a refresh rate of 120 frames per second, twice as fast as the typical rate. The new Full-HD W Contrast AI also gives third-dimensional appearance to images with a high 7,000:1 contrast ratio" |
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#9 | Link | |
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AVS Special Member
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IMHO resoultion and motion blur are two different creatures. Motion blur does exist but is no way near the deal killer you would infer. "The latest LCDs are not devoid of motion blur completely as plasma is, but they're fast enough to watch even the fastest of sporting events with few desultory effects." http://www.hometheatermag.com/advic.../407plasmavlcd/ . BTW, the plasma sets tested also suffered a loss in dynamic (motion) resolution apparently not as bad as the tested LCDs. So, if a loss of dynamic resolution and motion blur are the same, wouldn't this mean that plasmas also suffer from motion blur? As for costs, they are all over the place. A Sharp AQUOS LC-52D62U 52" LCD costs less than a Panasonic TH-50PZ700U 50" Plasma TV http://electronics.pricegrabber.com/...visions/p/197/ Yet the LCD is larger. I'm sure you can go to other sites and find the reverse. This article is interesting. It attempts to explain the cost difference. "When it comes to the market price of a TV set, the positions of PDP and LCD TVs are inverted with pricing for PDP TVs rising above that for LCD TVs. Average market price for a 50-inch full HD PDP TV was as high as $4,453 as of the 1Q of 2007, compared with a relevant LCD TV's $3,709, according to DisplaySearch. As reasons for the PDP TV's inverted pricing state, DisplaySearch cited factors including the high component costs needed to assemble a PDP to a TV set. PDP TVs have no other choice but using optical filters to reduce EMI and prevent reflection, as well as expensive power supply circuits that support their 180 to 200 V high drive voltage, which further result in high costs to assemble a set, said DisplaySearch. An optical filter used in 50-inch full HD resolution models, for example, cost $104.2 (as of the 1Q of 2007). LCD TVs do not need any optical filters. A power supply circuit cost $61.5, about three times more than the LCD TV's $21.1. Reflecting the high voltage, components around the power supply circuit in a PDP TV were also about twice more than those in an LCD TV. When building up a TV set, a PDP TV required labor costs of $203.2 for assemblies including the installation of an optical filter, more than $30 higher than that required for an LCD TV." http://techon.nikkeibp.co.jp/english...070925/139644/ Last edited by Nmlobo; 09-30-07 at 07:10 AM.. |
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#11 | Link | |
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Neverending upgrader
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![]() Just like reflective LCD's and LCD burn in. ![]() If your panel starts macroblocking and/or blurring when motion gets faster, you are losing resolution. How can you say it is unrelated?
__________________
My HT In the words of English philosopher Edmund Burke, “All that is necessary for the triumph of evil is that good men do nothing.” |
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#12 | Link |
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AVS Special Member
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My panel does not start macroblocking and/or bluring with motion. I'm sorry if yours does.
Never said 'unrelated' I said they are two different things.......and they are. How much 'blur' do you notice with your pdp? They lose resolution with movement as well. |
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#13 | Link | |
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Neverending upgrader
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![]() Face it, HDguru hit's it on the head and LCD pushers just get offended and defensive and then pull the BIAS card.
__________________
My HT In the words of English philosopher Edmund Burke, “All that is necessary for the triumph of evil is that good men do nothing.” |
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#14 | Link |
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AVS Special Member
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To me off center viewing is a huge detriment to owning an LCD. As the center piece to a home theater system, good off center viewing is an absolute must. In Sound&Vision Mags latest issue they test the new Toshiba 52LX177. In the minus attribute section they say "typical limited LCD viewing angle". That kind of statement tells you that this shortcoming is expected by the pro reviewers. Expected yes, but not acceptable.
Last edited by andy sullivan; 10-04-07 at 03:11 PM.. |
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#15 | Link | |
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AVS Special Member
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Macroblocking is a signal/compression issue, not related to display type. You must not have understood this. As for blur related to resolution, if this is true, pdps must blur as well since HDGuru reported that pdps also suffered resolution loss with motion. ![]() |
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#16 | Link |
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Senior Member
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Thx U......I posted this article in the Plasma section on Mon. I guess I should of posted it in here b/c my thread basically went dead. But I was trying to explain to one gentleman that the motion resolution flaw is not only unique to display devices alone. That other pieces of equipment along the chain suffer from this as well.
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#19 | Link | |
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AVS Special Member
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#20 | Link | |
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Neverending upgrader
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![]() I used the term macroblocking because it is similar to what I have seen LCD's do with fast motion but I am sure there is a more accurate term. If you read the HDGuru article, you would know what he said...and that was the best LCD's were 120hz and even those just were not in the running vs the plasma's. I have a 720p (768p) plasma, so it's no wonder I don't see any loss. ![]() I guess we could say my lowly plasma resolution beats your 1080p LCD in motion resolution scenes. ![]()
__________________
My HT In the words of English philosopher Edmund Burke, “All that is necessary for the triumph of evil is that good men do nothing.” |
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#21 | Link |
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AVS Special Member
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Degrees of viewing angle means little to the average viewer. I know that my main viewing room is 27x15. With a couch on one side wall and a chair on the other, placed about 10' from the several 52" LCD displays I've tried, the PQ is noticeably lessened. The same goes if I lay on the floor. I haven't tried the JVC. Even the article you mention states that "MOST"pictures on LCD's will wash out as you move off center. That's a really bad thing when you can say that about most LCD's. Why would you want to buy one for your main display? Sure, maybe you can squeeze two or three people in the sweet spot but what if you have more people than that? Why bother, just get a plasma if you want a family size flat panel.
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#22 | Link | |
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AVS Special Member
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#23 | Link | |
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AVS Special Member
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#25 | Link | |
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AVS Special Member
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i see 'blur' and macroblocking with motion on my plasma and all plasmas at bb. i also see it on my lcd with motion. it looks more pronounced on my lcd (i assume) because the lcd is generally sharper than plasma ie: if there is something bad in the signal the sharper set will show it more. neither is perfect. pick your poison |
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#26 | Link | |
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Neverending upgrader
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![]() LCD vs plasma noise.....they are just different. I would hardly call LCD sharper. Have you seen the Aquos noise up close? I did not see any claims of perfection but please, ignoring what LCD's are doing to objects in motion is just plain silly. Off axis angles, motion blur with resolution loss....these are real problems dogging LCD even now.
__________________
My HT In the words of English philosopher Edmund Burke, “All that is necessary for the triumph of evil is that good men do nothing.” |
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#27 | Link |
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AVS Special Member
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Face it folks--we're still not getting 1920X1080 every single pixel in all of its glory all the time. Real HD is not perfect yet. We should all be after the least bad or the least imperfect.
That happens to be Plasma at the current time. Why do people have such a problem with accepting the truth? Sounds like LCD needs to rev up to about 240hz to get a significant increase in motion resolution. |
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#28 | Link | |
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AVS Special Member
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absolutely. poor sources will do it every time no matter what you have. i don't notice any blurring on the lcd with hd dvd or sd dvd. hd ota and cable is another story and some channels are hideous. anybody claiming perfection is a fanboy in my book. if you or anyone can cite a sequence from a movie on hd dvd (chapter time) that you claim to see blurring on lcd but not plasma, i will check it out on my sony xbr2 (yeah yeah, old stuff but i love it) and will be 100% honest in my response. doesn't have to be hd dvd. any sd material will do. i can check it out on both the lcd and plasma. no fanboy here. |
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