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| TFT monitors; Types TN and PVA | |
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| Tweet Topic Started: Jun 28 2005, 12:34 AM (330 Views) | |
| somerled | Jun 28 2005, 12:34 AM Post #1 |
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Admiral MacDonald RN
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Twisted nematic (TN) LCDs, in-planeswitching (IPS) LCDs, and vertically aligned (VA) LCDs are common modes used in TFTs. Where these are liquid crystal display modes. Anyone got a feel for which is the better ? Why ? |
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| Admiralbill_gomec | Jun 28 2005, 06:38 AM Post #2 |
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UberAdmiral
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Why is this a poll? Why not discuss this instead? |
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| somerled | Jun 28 2005, 08:12 AM Post #3 |
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Admiral MacDonald RN
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No one is stopping anyone from voting or voting and commenting / discussing or just discussing the TFT technologies available in mover "LCD" screens and the pros and cons of these. Feel free to contribute any ideas or views or information you might have , or even what you have had heard about the competing technologies. From what research I did in selecting a new TFT (19") monitor recently I found that that the manufacturers of these screens are producing principally two main types (PVA and TN-II) , and currently all (well all I could find technical specs for) are either PVA or TN (currently TN - Type II). Deciding which is best - that's a tough call. My money is on PVA , if you can get it in the TFT size you want and V/H angle and contrast are prime concerns and a slower response time is acceptable. See my comments on Samsung's 910T and 913B which happens to be a TN-II. I had to settle for a 913B. These devices are catagorised by the orientation of the liquid crystals in the matrix of the active TFT screen. Maybe MVA, PVA and IPS, what's this all about? and from above
might be enlightening. As well as these extracts from a recent report : TN+Film Matrices IPS Matrices MVA Matrices PVA Matrices Some vaguely defined specs given by the manufacturers CR = Contrast Ratio Niceties of Brightness and Contrast Color |
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| Admiralbill_gomec | Jun 28 2005, 08:30 AM Post #4 |
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UberAdmiral
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Now isn't that better?? Sure it is... |
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| digifan2004 | Jun 28 2005, 12:03 PM Post #5 |
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Electronic genius
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Frankly I don't really care what type of connections my new LCD monitor had. As long as it works it's fine by me. |
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| somerled | Jun 28 2005, 10:02 PM Post #6 |
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Admiral MacDonald RN
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Actually it's more to do with the microstructure of the LCD (or TFT) and how the liquid crystals respond to the application of a voltage than "connections". |
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| Admiralbill_gomec | Jun 29 2005, 11:05 AM Post #7 |
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UberAdmiral
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A consumer will, most likely, buy whichever is cheaper and not concern himself with the type of LCD monitor it is. |
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| digifan2004 | Jun 29 2005, 12:13 PM Post #8 |
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Electronic genius
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Not necessary true. I shop around for a while before buying my new 17' HP LCD monitor. Sometimes it's the brand name and its quality that will sell a product, not just its price. For example I know Samsung sell LCD monitors as well that are cheaper than HP but I like HP products. They are made in the US and has serve me quite well over the past years. |
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| Admiralbill_gomec | Jun 29 2005, 02:19 PM Post #9 |
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UberAdmiral
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I would say you are the exception rather than the rule. With the price being often 100 dollars between the highest and lowest quality 17" LCD monitor, most people go with the lower price. Why? Because it isn't going to last a year then quit. Most users find the resolution options fit their needs quite well. I just bought a 19" LCD monitor earlier in the month. I walked into CostCo and looked at the selection of monitors they had. There was a DCL for $300, an Acer for the same price, a Princeton for $330, and an HP for $420. (I still have the prices written in my Palm Pilot; my memory isn't THAT good.) I weighed the options (all but the Acer came with speakers) and saw them all operating. No surprise, but I bought the DCL. In addition I got $40 off my purchase (actually only $40, as it comes off after tax). So, I saved $130 (plus tax) off the top and an additional $40 for a total of $170. Would I pay a 60% premium for a name? Nope. |
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| gvok | Jun 29 2005, 02:48 PM Post #10 |
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Unregistered
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AB stop baiting or i will report you to the moderator of this forum. |
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| somerled | Jun 29 2005, 03:42 PM Post #11 |
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Admiral MacDonald RN
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Research that I have done indicates nearaly all 17" TFTs are type TN. |
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| Admiralbill_gomec | Jun 30 2005, 08:57 AM Post #12 |
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UberAdmiral
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A question: Does anyone ever look to see what kind of LCD monitor they are buying? |
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| somerled | Jul 1 2005, 08:17 AM Post #13 |
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Admiral MacDonald RN
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Few manufactures are that specific in their monitor specifications and it takes considerable digging to extract this kind of information (LCD excitation mode). I think all manufacturers should specify this in their advertising for their TFTs for each model. |
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1:52 PM Jul 11