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Discussion Starter · #1 ·
I was wondering if someone here might be able to help me. I have "ghosting" in the lower right-hand corner of the screen. It is most noticable on the clock in WinXP. There is the image that is supposed to be there and then a ghost of the image next to it. Does anyone know what might be causing this?


Thanks,


Frank T. Lee
 

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Are you connecting via DVI or VGA?


-phil
 

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Well that answers my one idea.


-phil
 

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Caused by the mirror inside perhaps? Not reflecting, but possibly slightly out of correct distance to the screen (a little to far away, or a little to close) to cause some blurring?


Just a stab in the dark?
 

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I believe this might be the internal reflection issue that Steve posted some months ago.


I notice it when my PVR screen saver has the icon in the upper left, I get a faint shadow in the lower right producing an internal reflection.
 

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Do you see the ghosting when looking directly at that area, perpendicular to the screen? At a decent angle, I noticed some bad ghosting on white print/ black background in a store HLN5067 floor model.


Just trying to rule out a double reflection, one from the screen's inside surface and the other from the outside surface.
 

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Discussion Starter · #10 ·
duffin,


Thanks but, I know what "internal reflections" are. Steve and I were the first to notice and report them. This is not an "internal reflection". The clock is displayed where it is supposed to be and then a faint copy of it is displayed about 1-2 pixels to the right and slightly down. It happens with anything in the lower right-hand corner.


gpflepsen,


Yes, you can see it when you look perpendicular to the screen.


Thanks,


frank
 

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frank, do you see the same problem with other image? Try freezing a full screen DVD or HD image, and see if the same problem occurs.
 

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I appear to have a similar problem with the VGA input on my 437, only it's throughout the entire screen.


I have the resolution set to [email protected], with the coarse/fine adjustments corrected, displaying a perfectly crisp image edge-to-edge.


However, items on the screen (particularly well-defined dark items on lighter backgrounds) have shadows or 'ghosts' of the image (more than one, it appears) to the right of the image (can easily be seen with the Windows arrow, for instance). This effect is consistent across the entire screen.


I haven't been using my set as a monitor, but decided to play around with it last night to make sure everything is working fine on that end.
 

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Thats analog for ya.


I noticed a little bit of this on mine. Its likely a reflection in the signal path due to an impedance mismatch somewhere. Could be your cable, graphics card, or in the monitor. If you have access to another monitor you should be able to check it out. If you have a splitter, long cable, extension cable, check there first.


- captive cable device look reeeeeel close to see if it is there- if so, it is the card.


- if you have access to a monitor that you can cable to (non-captive cable) you can isolate to the cable or card.


- if you have both the above, you should be able to narrow it down. Otherwise time for the o'scope. ;-)


Markd
 

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Quote:
Originally posted by mdesmarais
Thats analog for ya.


I noticed a little bit of this on mine. Its likely a reflection in the signal path due to an impedance mismatch somewhere. Could be your cable, graphics card, or in the monitor. If you have access to another monitor you should be able to check it out. If you have a splitter, long cable, extension cable, check there first.


- captive cable device look reeeeeel close to see if it is there- if so, it is the card.


- if you have access to a monitor that you can cable to (non-captive cable) you can isolate to the cable or card.


- if you have both the above, you should be able to narrow it down. Otherwise time for the o'scope. ;-)


Markd
Thanks for the info! I had hoped it might be a reflection somewhere in the signal path. I just wish I had a DVI connection I could try.


I am actually using a fairly low quality cable since the 'proper' cable (i.e. the well-shielded one that came with my LCD monitor) is still hooked up elsewhere in the room. I'll try swapping the cable tonight and see if the problem lessens (or disappears).
 

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Well, I don't think this will have an effect on Frank's issue, but I went home on my lunch hour and swapped in a properly shielded cable and voila! No more reflections! :)
 
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