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Author Topic: Trick with using PC CRT  (Read 4905 times)

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RandyT

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Re: Trick with using PC CRT
« Reply #40 on: July 18, 2008, 07:45:49 pm »
That is exactly what I was getting at.   Most of what is seen is an illusion.  The difference is that I am saying is that what a person is seeing is not an actual line from the drawing - but instead,  the lines are simply from the shadowmask instead.   

No, the lines are from the phosphor continuing to glow behind the horizontally traversing electron beam and your "persistence of vision."  They have nothing to do with the shadow mask.  In fact, without the mask, the lines would be much more apparent.

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As far as I understand it...  As the electron beams pass,  they Re-Illuminate the phosphors.  Each lit phospher will darken at a set rate.  The beams do not create the darkness...  instead,   that darkness is the phosphors darkening on their own.

I believe I already stated this.
 
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Strange, because my 27" CRT TV...

TV's (non-HD ones anyway) , use interlace.  Your Turbo monitor is progressively scanned.  You can't expect to learn much by comparing the two.  Your TV goes back and fills in the space between the lines.  Your Turbo monitor does not.

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Yet, in the pics I see that Red alone is let up to be orange.  Green is not needed.

Adjust, repair or replace the monitor.  This is not an intended result.

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Not so sure about this.  I think the effect is simply the red being brightened to the point of appearing orange.

You can be sure.  It doesn't work that way.

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THey make a lowres monitor that have a large dot pitch..  however,  in a year or so,  they improve the ability to make more precise masks.  This may help cut down on possible degradation effect over the lifetime of the unit.. and may  reduce bluring and bleeding. 

Just research the specs.  This "hypothetical" reasoning is ludicrous.  But I'll play along....look at LCD panels.  Defect rates were very high during the manufacture of early panels.  As the process matured, the defect rate declined, making way for higher resolution panels.  This process continues for each generation of panel, driving prices down at the previous levels, where defect rates declined to much lower numbers.  Technology also marches on, making the circuitry required to drive those lower resolutions cost many times less. 

Only an idiot would try to put a 1600x1200 LCD panel into a 5inch TV that needs to sell for $50.  Manufacturers aren't idiots.

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All I know is that last time I looked at the new low res monitors... their dot pitch was higher than those of the past.   One has to conclude that the  display output must have looked different because of it.

Wells Gardner K7000.  A.K.A "Today's Standard-Res CRT Display":

Striped trio spacing: 0.42mm & 0.63mm (13”), 0.71mm (19”), 0.84mm (25”), 0.84mm (27”)

This is pretty disgusting by PC standards, so if you think the originals were significantly worse than this, you should probably post the specifications that are leading you to this conclusion.

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There is a market, for a device or software solution that re-creates that arcade quality look on a PC monitor or LCD.   Especially with CRTs being expensive, bulky, electric prices rising,  EMF radiation,  and finally, CRTs being phased out.

Again, I tell you that this is not possible without a very high native panel resolution (namely, one capable of addressing not only enough pixels to accurately simulate the holes in the mask, but also the mask itself), and by the time these become commonplace (if they ever do) it will be done in software, with the help of a decent graphics card for that time period.  And one more time, if you believe it can be done without a very high native resolution display, please do enlighten us as to the method you are envisioning.

RandyT
« Last Edit: July 19, 2008, 12:57:38 am by RandyT »