Talk:IPS panel

This is a really bad article[edit]

It relies on jargon which is not defined anywhere else in Wikipedia -- it is therefore the duty of the editors to define these terms. The article will also benefit from one or two diagrams showing how the liquid crystals lie in a horizontal plane (for example, what does horizontal mean in this context? parallel to the glass front of the monitor? parallel to the table the monitor rests on?), and perhaps two schematic diagrams showing how the electrodes and wiring differ from those in ordinary TFT TN monitors.

In the section on "History" only the 1st, 2nd, and 4th sentences actually touch on history. Not a word in this section about the men and women, and companies, that invented and developed IPS.

Super-IPS and Super-PLS are mentioned, but are not explained, not even by cross reference. Are they the same thing?

The section on "Advantages" reads like an advertisement written by someone who is still learning the English language. Some of it is truly incomprehensible -- copy-editing would be futile. Why is there no corresponding section on disadvantages? Even better would be a table comparing the strengths and weaknesses of all the flat-panel display technologies, but might be the nucleus of a different article.

Come on, someone has to fix this. Before IPS is driven from the market by the next great thing, whatever that might be.

Eall Ân Ûle (talk) 04:05, 1 February 2012 (UTC)[reply]

Some of the issues mentioned have been addressed in the meantime.

SwissLCD (talk) 11:10, 17 December 2012 (UTC))[reply]

Agreed! I could have sworn that there was another article on IPS at some point, one that made sense and that wasn't written so poorly, but I must be mistaken. Also, as mentioned below, the Super PLS section is basically an ad (a really bad one at that) by Samsung!

I don't know enough to fix it, and what it really needs is to be deleted and started from scratch! I'll see if I can find someone who can re-write it, but, if there's anyone else out there who can, please do so!

Ge0nk (talk) 00:21, 11 September 2012 (UTC)[reply]

"It was designed to solve the main limitations of the twisted nematic field effect matrix LCDs at that time". At what time? 173.172.70.38 (talk) 21:42, 11 November 2013 (UTC)[reply]

Super PLS[edit]

The Super PLS section looks like it was written by a Samsung PR person with no technical knowledge - supports "resolutions of up to almost 1 megapixel" and doubles viewing angles (which are already quoted at 178 degrees) are the most egregious examples of someone talking out their arse. Bpdlr (talk) 13:19, 15 March 2012 (UTC)[reply]

Define viewing-angle. The angle at which you can SEE the screen? Sure that might be 178 degrees. But there is a noticeable change in color quality beyond 90 degrees on ANY IPS display. The problem with Wikipedia is that it consistently cites articles written by idiots on News websites who have no understanding of the technology themselves. Even when they do, the article is misunderstood. 86.179.225.121 (talk) 11:24, 21 August 2012 (UTC)[reply]

Possible copyright issues[edit]

Parts of this article appear to be verbatim copies or very close paraphrases of portions of the source texts they cite. While it is good that the sources are credited, these really need to be rewritten in original prose if this is in fact the case. ::Travis Evans (talk) 03:09, 6 August 2012 (UTC)[reply]

Explanation of basic IPS operation[edit]

After reading this article and the comments on the talk page I have made an effort to draw a schematic and add an explanation of a particular type of IPS operation closest related to twisted nematic LCDs. A lot of details are left out for a better understanding of the basics.

However, a similar effort is still needed to explain super IPS and other more advanced versions. I have left LCD R&D in 1980. Therefore, I am not an expert on the later evolution. SwissLCD (talk) 19:48, 25 September 2012 (UTC)[reply]

Backwards--->Implication that VA has wider viewing angles.[edit]

Aye yi yi. Perhaps these are the bumps in the road for a new article. I'm pulling a completely backwards statement. Absolutely everyone here will agree. Inside IPS panel#Technology there is the following bit of nonsense (forgive my hyperbole):

"VA offers a wide viewing angle. VA panels have other problems.[5]"

First of all, that source does not even say that!!!!! It says that VA has "wider viewing angles than TFT". NOT compared to IPS. Secondly, one of the amazing hallmarks of IPS (all flavors) is the enormous viewing angles.Tgm1024 (talk) 18:47, 3 October 2012 (UTC)[reply]

Faster or slower response time?[edit]

I'm confused by this apparent contradiction. The summary says:

> It was to solve the main limitations of TN-matrices at the time: relatively slow response...

But then the Disadvantages section says:

> IPS panels have slower response times and are therefore more prone to the ghosting effect.

Which is it? 141.59.18.72 (talk) 08:18, 25 April 2013 (UTC)[reply]

Invention[edit]

Edits habe been made to change the category German inventions to US or Swiss inventions. Neither the RCA team in the US nor Helfrich and Schadt at Roche in Switzerland experimented with electric fields parallel to the glass substrates of LCDs at the time. The inventors at the Fraunhofer Institute in Freiburg, Germany, came up with an IPS implementation patented and used by many licencees.

SwissLCD (talk) 07:28, 13 August 2013 (UTC)[reply]

The first practical and modern IPS invention came from: http://www.patents.com/us-7440061.html Yoo; Jang-Jin (Seoul, KR), Hong; Hyung-Ki (Seoul, KR), Yoon; Ki-Hyuk (Seoul, KR). Delete german Invention.

There is good reason why so many Asian companies took a license from Merck (German patent mentioned) to manufacture IPS LCDs. Multi-domain arrangements such as in the Yoo et al. patent were an improvement. However, I cannot spend the time to research, whether the Yoo et al patent was decisive. BBCLCD (talk) 16:17, 23 August 2014 (UTC)[reply]

But most of them create new patents for better IPS tech. I think it is ok for South Korean inventions catg.

South Korean patents/improvements of IPS technology were after Japanese patents/improvements as seen in the article with tables for Hitachi and LG. If you want to include South Korean inventions as a category, the historically correct sequence would be: German, Japanese, South Korean. BBCLCD (talk) 06:56, 24 August 2014 (UTC)[reply]

Unsourced, original research, dubious sources[edit]

Whole paragraphs are unsourced.
Opinions are embedded in the article text: "manufacturers fudge numbers"
It is WP:original research to make claims supported only by a patent, because it is a primary source; independent RS are required.
Claims based on sources of dubious reliability: PChardwarehelp.com(anonymous, no editorial board), tftcentral.co.uk (anonymous site, uncited elsewhere, uncredentialed author), lcdtvreviews.org.uk (fansite)

--Lexein (talk) 05:27, 9 October 2013 (UTC)[reply]

History chart[edit]

The chart in the history section is beyond useless. It really does reek of marketing PR (notice all the quantify tags?). I'm tempted to remove it, but wanted to post here first to see if any of the editors are still active here and would like to propose an alternative first. Air ♠ Combat _What's^{up, dog?} 10:46, 24 July 2016 (UTC)[reply]

As a matter of fact, I'm tempted to just completely re-write the whole article from scratch, and then copy it over this one... if I can find an editor or two to help, maybe we can start it over at User:AirCombat/IPS Air ♠ Combat _What's^{up, dog?} 10:49, 24 July 2016 (UTC)[reply]

Better source to explain "grayscale inversion"?[edit]

I just added a link to [1] that explains (and shows) what "grayscale inversion effect" is. Obviously, a more neutral source (and presumably more stable) like a book or paper that shows this would be nice. I found a few books on g-books that talk about it:

Liquid Crystal Display Drivers: Techniques and Circuits, p. 62, at Google Books and Progress in Liquid Crystal Science and Technology, p. 325, at Google Books, and a 2006 paper (Park, Chi Hyuk; Lee, Seung Hee; et al. (2006). "Control of gray scale inversion in a film-compensated twisted nematic liquid crystal display using beam steering optical film". Applied Physics Letters. 89 (10): 101119. doi:10.1063/1.2345248. - conference session link: "Reduction of grey scale inversion in a film-compensated twisted nematic liquid crystal display using beam steering optical film". Chi-Hyuck Park et al.)

The books links don't have pictures (I don't think). The article has a picture (Figure 6), but it's behind a paywall. So we're left with a picture from a manufacturer website. Anyone have any better idea? Jimw338 (talk) 16:48, 5 November 2016 (UTC)[reply]

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talk my page[edit]

great — Preceding unsigned comment added by Pwtbh22 (talk • contribs) 16:15, 5 November 2020 (UTC)[reply]