1. Would an anti-glare filter of 20 inch such as 3M EF200XXLB
Anti-Glare/Radiation Computer Filter, Black Frame
http://solutions.3m.com/wps/portal/3M/en_US/Health/Safety/Products/Related/?PC_7_RJH9U52300A9E023IJD0GR3O74_nid=0GNNMZZJ6Rgs651JNCZ61CglNGM0L4CN7Qbl
be fine for the Dell XPS one or should I get a 21 inch or higher since
the XPS one has
speakers connected to the monitor(on its sides) which extend its size so
can cause issues when hooking up the 20inch filter to the screen?
A user wants a Dell ST2420L 24" W Full HD Monitor to be connected to his
HP XW4600 workstation which has a NVIDIA Quadro FX 370 graphic card
http://www.nvidia.com/docs/IO/40049/NV_DS_QFX_370_LowProfile.pdf
It is for a user in mid sixties. The link at
http://accessories.dell.com/sna/products/Monitors_Flat_Panel_Widescreen/productdetail.aspx?c=ca&l=en&s=bsd&cs=cabsdt1&sku=320-9334&~ck=baynoteSearch&baynote_bnrank=2&baynote_irrank=0
mentions connectivity via VGA, DVI-D (HDCP) and HDMI.
2. Do I need to worry if the video card NVIDIA Quadro FX 370 has HDCP
keys or not as the datasheet at
http://www.nvidia.com/docs/IO/40049/NV_DS_QFX_370_LowProfile.pdf
does not mention it? Since it mentions VGA and DVI-D(HDCP), I estimate
this monitor should work with the xw 4600.
3. For the Dell ST2420L 24" W Full HD Monitor would the 3M PF24.0W 3M
Widescreen LCD Privacy Filter 24 at
http://www.shop3m.com/98044050569.html be OK as an anti-glare filter?
I did not see any 24inch anti-glare filters at 3M for 24inch monitors so
picked this one The user(in mid sixties) needs a anti-glare filter for
his present 19 inch LCD monitor(HP L1950).
Any suggestions would be appreciated.
g wrote:
It's been a while since I've seen a filter like that, but I thought some of them
used "arms" on top of the monitor. It would be purely aesthetics to want to cover
the entire face with an equal sized item.
http://www.engadget.com/photos/dell-xps-one-a2010-specs-and-features-revealed/463792/
And according to the Newegg pictures of that filter, you can see the hooks on
the top.
Even the Newegg pictures aren't perfect, because Newegg chose to use the
manufacturer
promotional pictures, instead of their usual, honest to God pictures.
http://images17.newegg.com/is/image/newegg/24-991-021-S01? $S640W$
Since the 3m.com product page says it also fits CRTs, then it likely has the
"long arms" as an option at installation time. If Newegg had used real pictures
of the package contents, that might have been more obvious.
http://accessories.dell.com/sna/products/Monitors_Flat_Panel_Widescreen/productdetail.aspx?c=ca&l=en&s=bsd&cs=cabsdt1&sku=320-9334&~ck=baynoteSearch&baynote_bnrank=2&baynote_irrank=0
Who actually manufactured the video card ?
When Nvidia offers a card with their branding on it, it is likely
contract manufactured by someone else. Nvidia tends to be "fabless",
meaning they live in an engineering building with no production facilities.
An example of a company that makes a lot of Quadro is pny.com . If the
card had a part number from such a company, you might trace the details
down that way.
The thing is, there was a point in time, where the GPU was "HDCP ready" but
the HDCP key ROM was missing. I don't really want to go out on a limb
and state it absolutely has it. It might not.
On cards with an actual HDMI connector on the faceplate, HDCP is supposed
to be mandatory now. But with DVI connectors, it's optional. Or at least,
it was optional in the past.
I think ATI got in a bit of trouble (class action ?) for stating that
their card was "HDCP ready", and then some of the manufacturers making
the cards, neglected to put HDCP keys on the card (so HDCP could not
negotiate).
If the card really is backed by the Nvidia name (in the documentation
in the box, there is an Nvidia phone number you can call for support),
maybe you can verify with them ? I don't know if there is a way you
can enumerate the card with some utility, to tell whether it has it
or not.
In a quick check, it looks like 3M decided to do pure antiglare, for
things with 4:3 aspect ratio. Their privacy filters seem to be
their new focus, for wide screen (16:10 or 16:9) monitor devices.
But a privacy filter will also affect viewing angle. If the user
sits centered in front of their (filtered) screen, then there might
not be too much intensity loss.
That leaves some "off brand" products as alternatives, and some
of those have mixed reviews.
Paul
It's been a while since I've seen a filter like that, but I thought some of them
used "arms" on top of the monitor. It would be purely aesthetics to want to cover
the entire face with an equal sized item.
http://www.engadget.com/photos/dell-xps-one-a2010-specs-and-features-revealed/463792/
And according to the Newegg pictures of that filter, you can see the hooks on
the top.
Even the Newegg pictures aren't perfect, because Newegg chose to use the
manufacturer
promotional pictures, instead of their usual, honest to God pictures.
http://images17.newegg.com/is/image/newegg/24-991-021-S01? $S640W$
Since the 3m.com product page says it also fits CRTs, then it likely has the
"long arms" as an option at installation time. If Newegg had used real pictures
of the package contents, that might have been more obvious.
http://accessories.dell.com/sna/products/Monitors_Flat_Panel_Widescreen/productdetail.aspx?c=ca&l=en&s=bsd&cs=cabsdt1&sku=320-9334&~ck=baynoteSearch&baynote_bnrank=2&baynote_irrank=0
Who actually manufactured the video card ?
When Nvidia offers a card with their branding on it, it is likely
contract manufactured by someone else. Nvidia tends to be "fabless",
meaning they live in an engineering building with no production facilities.
An example of a company that makes a lot of Quadro is pny.com . If the
card had a part number from such a company, you might trace the details
down that way.
The thing is, there was a point in time, where the GPU was "HDCP ready" but
the HDCP key ROM was missing. I don't really want to go out on a limb
and state it absolutely has it. It might not.
On cards with an actual HDMI connector on the faceplate, HDCP is supposed
to be mandatory now. But with DVI connectors, it's optional. Or at least,
it was optional in the past.
I think ATI got in a bit of trouble (class action ?) for stating that
their card was "HDCP ready", and then some of the manufacturers making
the cards, neglected to put HDCP keys on the card (so HDCP could not
negotiate).
If the card really is backed by the Nvidia name (in the documentation
in the box, there is an Nvidia phone number you can call for support),
maybe you can verify with them ? I don't know if there is a way you
can enumerate the card with some utility, to tell whether it has it
or not.
In a quick check, it looks like 3M decided to do pure antiglare, for
things with 4:3 aspect ratio. Their privacy filters seem to be
their new focus, for wide screen (16:10 or 16:9) monitor devices.
But a privacy filter will also affect viewing angle. If the user
sits centered in front of their (filtered) screen, then there might
not be too much intensity loss.
That leaves some "off brand" products as alternatives, and some
of those have mixed reviews.
Paul
On 4/1/2011 11:04 PM, Paul wrote:
http://solutions.3m.com/wps/portal/3M/en_US/Health/Safety/Products/Related/?PC_7_RJH9U52300A9E023IJD0GR3O74_nid=0GNNMZZJ6Rgs651JNCZ61CglNGM0L4CN7Qbl
http://www.engadget.com/photos/dell-xps-one-a2010-specs-and-features-revealed/463792/
Thanks, that means if we get the 20 inch one we can hook it over the XPS
one.
http://accessories.dell.com/sna/products/Monitors_Flat_Panel_Widescreen/productdetail.aspx?c=ca&l=en&s=bsd&cs=cabsdt1&sku=320-9334&~ck=baynoteSearch&baynote_bnrank=2&baynote_irrank=0
I don't know if I can find it without opening the tower.
But, should it matter since it states VGA so that option can be used for
connecting?
Does that mean the the 3M PF24.0W 3M Widescreen LCD Privacy Filter 24
filter
might not reduce the glare?
Can you please advise which might be those?
Thank you for your advice and time.
http://solutions.3m.com/wps/portal/3M/en_US/Health/Safety/Products/Related/?PC_7_RJH9U52300A9E023IJD0GR3O74_nid=0GNNMZZJ6Rgs651JNCZ61CglNGM0L4CN7Qbl
http://www.engadget.com/photos/dell-xps-one-a2010-specs-and-features-revealed/463792/
Thanks, that means if we get the 20 inch one we can hook it over the XPS
one.
http://accessories.dell.com/sna/products/Monitors_Flat_Panel_Widescreen/productdetail.aspx?c=ca&l=en&s=bsd&cs=cabsdt1&sku=320-9334&~ck=baynoteSearch&baynote_bnrank=2&baynote_irrank=0
I don't know if I can find it without opening the tower.
But, should it matter since it states VGA so that option can be used for
connecting?
Does that mean the the 3M PF24.0W 3M Widescreen LCD Privacy Filter 24
filter
might not reduce the glare?
Can you please advise which might be those?
Thank you for your advice and time.
g wrote:
I can't be sure of anything, unless I can either find a downloadable
installation manual, or some real pictures of the product. So far,
all I know is it fits LCD and CRT, and a picture of the LCD mounting
shows short arms. Now, in the past, there would have been longer arms
near the top, for usage with a CRT.
Does 3M have pre-sales support ? If they can't be bothered to provide
product documentation (installation manual PDF), perhaps direct contact
with them is needed.
XW4600
>
The quality of the image from VGA, degrades at higher resolution. There
can be ghosting and reflections from the cabling. At lower resolutions,
you might find DVI/HDMI (digital) to be comparable to VGA. But as the
VGA analog resolution rises, in a comparison test you might find a
digital connection to be preferable. DVI and HDMI should be equal, because
its the same protocol (TMDS).
Some applications (movie playback of commercial titles) may require the
OS to set up a "protected video path" and I don't know all the details
of which OS, and what happens if PVP is not available. HDCP is a method
that supports encrypting the data stream between the computer and the
guts of the monitor. Even though the scheme has been cracked, the software
will still be configured to enforce it if the situation calls for it.
http://en.wikipedia.org/wiki/Protected_Media_Path
What that article doesn't describe, is any form of user-verified testing
of such (i.e. as to whether ordinary usage of a computer is ever compromised
by the availability of a protected video path). If your setup supported
HDCP (say, HDCP over DVI), that might mean one less thing to worry about.
It would reduce the glare, but it might impact the on-axis screen intensity.
And off-axis, since it is a privacy filter, it's going to block the image.
As the user moves their head from side to side, the intensity of the screen
could change. What a privacy filter is mainly intended for, is to reduce the
field of view.
If you buy an LCD monitor with S-IPS panel on it, the viewing angle is stated
as 178 degrees. Which means, if you sit way off to the side, there is
hardly any shift in visual characteristics. The viewing angle is quoted
at some level of attenuation. The cheaper monitors, the ones with TN panel,
might have a viewing angle of 170 degrees or so, and a noticeable color
shift as you move your head from side to side. Photoshop users don't want
a tight viewing angle, because it means they have to sit perfectly still
to maintain calibrated colors.
If you use a privacy filter, it's going to affect at least one viewing
axis of the monitor. I presume the privacy filter uses louvers to reduce
the horizontal viewing angle. If a user does Photoshop, they might get a
bit annoyed about that, and remove it.
An anti-glare filter, would not be implementing any privacy features,
so it won't be affecting viewing angle. Depending on how it is implemented,
it might decrease screen intensity, but most monitors have plenty of
adjustment range. (Any LCD I've used here, I have to turn it down when I
get it, because it's too bright.)
The fact that these are 4:3 form factor, suggests someone is just
buying these from 3M and sticking their brand on them. If I could
find some of these in 16:9 or 16:10, then my conclusion would be
that someone else was manufacturing them besides 3M.
http://www.nextag.com/COMPUCESSORY/anti-glare/brand-html
Considering the lack of supply, I'd have to assume the technology is
covered by a patent, preventing someone in China from copying them :-)
Paul
I can't be sure of anything, unless I can either find a downloadable
installation manual, or some real pictures of the product. So far,
all I know is it fits LCD and CRT, and a picture of the LCD mounting
shows short arms. Now, in the past, there would have been longer arms
near the top, for usage with a CRT.
Does 3M have pre-sales support ? If they can't be bothered to provide
product documentation (installation manual PDF), perhaps direct contact
with them is needed.
XW4600
>
The quality of the image from VGA, degrades at higher resolution. There
can be ghosting and reflections from the cabling. At lower resolutions,
you might find DVI/HDMI (digital) to be comparable to VGA. But as the
VGA analog resolution rises, in a comparison test you might find a
digital connection to be preferable. DVI and HDMI should be equal, because
its the same protocol (TMDS).
Some applications (movie playback of commercial titles) may require the
OS to set up a "protected video path" and I don't know all the details
of which OS, and what happens if PVP is not available. HDCP is a method
that supports encrypting the data stream between the computer and the
guts of the monitor. Even though the scheme has been cracked, the software
will still be configured to enforce it if the situation calls for it.
http://en.wikipedia.org/wiki/Protected_Media_Path
What that article doesn't describe, is any form of user-verified testing
of such (i.e. as to whether ordinary usage of a computer is ever compromised
by the availability of a protected video path). If your setup supported
HDCP (say, HDCP over DVI), that might mean one less thing to worry about.
It would reduce the glare, but it might impact the on-axis screen intensity.
And off-axis, since it is a privacy filter, it's going to block the image.
As the user moves their head from side to side, the intensity of the screen
could change. What a privacy filter is mainly intended for, is to reduce the
field of view.
If you buy an LCD monitor with S-IPS panel on it, the viewing angle is stated
as 178 degrees. Which means, if you sit way off to the side, there is
hardly any shift in visual characteristics. The viewing angle is quoted
at some level of attenuation. The cheaper monitors, the ones with TN panel,
might have a viewing angle of 170 degrees or so, and a noticeable color
shift as you move your head from side to side. Photoshop users don't want
a tight viewing angle, because it means they have to sit perfectly still
to maintain calibrated colors.
If you use a privacy filter, it's going to affect at least one viewing
axis of the monitor. I presume the privacy filter uses louvers to reduce
the horizontal viewing angle. If a user does Photoshop, they might get a
bit annoyed about that, and remove it.
An anti-glare filter, would not be implementing any privacy features,
so it won't be affecting viewing angle. Depending on how it is implemented,
it might decrease screen intensity, but most monitors have plenty of
adjustment range. (Any LCD I've used here, I have to turn it down when I
get it, because it's too bright.)
The fact that these are 4:3 form factor, suggests someone is just
buying these from 3M and sticking their brand on them. If I could
find some of these in 16:9 or 16:10, then my conclusion would be
that someone else was manufacturing them besides 3M.
http://www.nextag.com/COMPUCESSORY/anti-glare/brand-html
Considering the lack of supply, I'd have to assume the technology is
covered by a patent, preventing someone in China from copying them :-)
Paul
On 4/2/2011 6:41 PM, Paul wrote:
I will contact them tomorrow.
Currently that user is connected to a VGA port using a DVI adapter
something like
VGA port<->DVI adapter<->Wire from monitor
He does not face any image degradation now. He is a typical office user,
doing work in MS-Office, browsing the Web, watching some videos etc.
Can I assume it would be OK to overlook the DVI(HDCP part)?
If you can clarify one thing, I would appreciate it. How much would the
3M filter PF24.0W reduce the glare? The user currently has a 3M PF400XLB
as his anti-glare(which is a anti-glare filter compared to the PF24.0W
which is a privacy filter) and is in his mid-sixties with glasses so
feels he needs one anti-glare filter for the 24inch monitor.
No, they don't have Photoshop.
Thanks, will look into them. I thought of getting from 3M since they are
reputed for anti-glare filters.
Thanks a lot for your suggestions and time.
I will contact them tomorrow.
Currently that user is connected to a VGA port using a DVI adapter
something like
VGA port<->DVI adapter<->Wire from monitor
He does not face any image degradation now. He is a typical office user,
doing work in MS-Office, browsing the Web, watching some videos etc.
Can I assume it would be OK to overlook the DVI(HDCP part)?
If you can clarify one thing, I would appreciate it. How much would the
3M filter PF24.0W reduce the glare? The user currently has a 3M PF400XLB
as his anti-glare(which is a anti-glare filter compared to the PF24.0W
which is a privacy filter) and is in his mid-sixties with glasses so
feels he needs one anti-glare filter for the 24inch monitor.
No, they don't have Photoshop.
Thanks, will look into them. I thought of getting from 3M since they are
reputed for anti-glare filters.
Thanks a lot for your suggestions and time.
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> 1. Would an anti-glare filter of 20 inch such as 3M EF200XXLB
> Anti-Glare/Radiation Computer Filter, Black Frame
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