Hello,
My old laptop became obsolete so i decided to go for a new laptop.
I was hesitant to buy a laptop with the new refelctive (antiglare etc)
screen but because there are almost no laptops without these news
screen i bought one.
Well I am very disapointed. With just moderated light from the outside
i see everything reflected on the screen. In white parts (opened word
document or so) it is not to bad. But on darker parts of the screen it
is very distracting and annoying.
Maybe i get use to it (:-) but so far i am not to optimism about this.

I looked on the internet for antiglare screens but they seem all very
expensive (over $40,- for just a peace of plastic). Does anybody know
a diy sollution?

Bu

It's not an "antiglare" screen. It's **** near an "enhanced glare" screen.


Serial # 19781010 wrote:
> Hello,
> My old laptop became obsolete so i decided to go for a new laptop.
> I was hesitant to buy a laptop with the new refelctive (antiglare etc)
> screen but because there are almost no laptops without these news
> screen i bought one.
> Well I am very disapointed. With just moderated light from the outside
> i see everything reflected on the screen. In white parts (opened word
> document or so) it is not to bad. But on darker parts of the screen it
> is very distracting and annoying.
> Maybe i get use to it (:-) but so far i am not to optimism about this.
>
> I looked on the internet for antiglare screens but they seem all very
> expensive (over $40,- for just a peace of plastic). Does anybody know
> a diy sollution?
>
> Bu

"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:4574943a$0$13714$4c368faf@roadrunner.com
> Serial # 19781010 wrote:
>> Hello,
>> My old laptop became obsolete so i decided to go for a new laptop.
>> I was hesitant to buy a laptop with the new refelctive (antiglare
>> etc) screen but because there are almost no laptops without these
>> news screen i bought one.
>> Well I am very disapointed. With just moderated light from the
>> outside i see everything reflected on the screen. In white parts
>> (opened word document or so) it is not to bad. But on darker parts
>> of the screen it is very distracting and annoying.
>> Maybe i get use to it (:-) but so far i am not to optimism about
>> this. I looked on the internet for antiglare screens but they seem
>> all very
>> expensive (over $40,- for just a peace of plastic). Does anybody know
>> a diy sollution?
>>
>> Bu
>
> It's not an "antiglare" screen. It's **** near an "enhanced glare"
> screen.

I don't know how they are put together. But isn't it just a sheet on the
screen that could be removed?

--
Bill

BillW50 wrote:
> "Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
> news:4574943a$0$13714$4c368faf@roadrunner.com
>> Serial # 19781010 wrote:
>>> Hello,
>>> My old laptop became obsolete so i decided to go for a new laptop.
>>> I was hesitant to buy a laptop with the new refelctive (antiglare
>>> etc) screen but because there are almost no laptops without these
>>> news screen i bought one.
>>> Well I am very disapointed. With just moderated light from the
>>> outside i see everything reflected on the screen. In white parts
>>> (opened word document or so) it is not to bad. But on darker parts
>>> of the screen it is very distracting and annoying.
>>> Maybe i get use to it (:-) but so far i am not to optimism about
>>> this. I looked on the internet for antiglare screens but they seem
>>> all very
>>> expensive (over $40,- for just a peace of plastic). Does anybody
>>> know a diy sollution?
>>>
>>> Bu
>>
>> It's not an "antiglare" screen. It's **** near an "enhanced glare"
>> screen.
>
> I don't know how they are put together. But isn't it just a sheet on
> the screen that could be removed?

No, it's the screen without the anti glare etching.

I kinda like it, but I have mine sitting where I don't have glare
coming over my shouder. Shows photos real well!!

Tom J

Not "on" the screen, perhaps "in" the screen. The "optical stack" of an
LCD panel has about 7 layers to it, I'm not sure if "TrueBright" (or
whatever, each laptop maker has their own name for it) is just the
topmost layer or if it involves other things (there is more to that
optical stack than is obvious, it involves some polarizers and some
"brightness enhancement films" that are optically rather exotic).
However, in any case, it's not something that you could remove without
destroying the screen.


BillW50 wrote:
> "Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
> news:4574943a$0$13714$4c368faf@roadrunner.com
>> Serial # 19781010 wrote:
>>> Hello,
>>> My old laptop became obsolete so i decided to go for a new laptop.
>>> I was hesitant to buy a laptop with the new refelctive (antiglare
>>> etc) screen but because there are almost no laptops without these
>>> news screen i bought one.
>>> Well I am very disapointed. With just moderated light from the
>>> outside i see everything reflected on the screen. In white parts
>>> (opened word document or so) it is not to bad. But on darker parts
>>> of the screen it is very distracting and annoying.
>>> Maybe i get use to it (:-) but so far i am not to optimism about
>>> this. I looked on the internet for antiglare screens but they seem
>>> all very
>>> expensive (over $40,- for just a peace of plastic). Does anybody know
>>> a diy sollution?
>>>
>>> Bu
>>
>> It's not an "antiglare" screen. It's **** near an "enhanced glare"
>> screen.
>
> I don't know how they are put together. But isn't it just a sheet on the
> screen that could be removed?
>

Serial # 19781010 wrote:
> Hello,
> My old laptop became obsolete so i decided to go for a new laptop.
> I was hesitant to buy a laptop with the new refelctive (antiglare etc)
> screen but because there are almost no laptops without these news
> screen i bought one.
> Well I am very disapointed. With just moderated light from the outside
> i see everything reflected on the screen. In white parts (opened word
> document or so) it is not to bad. But on darker parts of the screen it
> is very distracting and annoying.
> Maybe i get use to it (:-) but so far i am not to optimism about this.
>
> I looked on the internet for antiglare screens but they seem all very
> expensive (over $40,- for just a peace of plastic). Does anybody know
> a diy sollution?
>
> Bu

AntiGlare is an impedance matching problem. You want the surface index
of refraction to match the index of air. Your camera lens does this
with a complex layering to approximate the match over the visible range.
If you've ever touched your lens, you know that skin oil messes up this
match. Not very practical for a laptop screen.

The next thing you can try is a matte finish. Diffuse reflection is
much less annoying than specular reflection like you get from a mirror.

You MUST fix the first surface. Whatever you do below that depends on
the quality of the first surface.

Now, you're ready to tackle the internal reflections from the internal
stuff. First thing to try is attenuation. A neutral density filter
reduces the intensity of the light passing through it. Try 50% to start.
The light from the rear is reduced to 50%, but the incident light
reflected off the inner layers passes thru the filter twice and is
reduced to 25%. The display is dimmer, but the contrast ratio is better.
We used to use polarized filters on electroluminescent displays 'cause
the back of the display was a mirror. A circularly polarized filter
made a dramatic reduction in the reflection from the back mirrored
surface. Not sure how this would work with an LCD because it also has
a bunch of polarizing filters in it.


Easiest DIY solution is to turn out the lights ;-)
mike

Re: "Easiest DIY solution is to turn out the lights ;-)"

Just try that outdoors.

"Honey, where's the on-off switch for the sun?"

Barry Watzman wrote:
> Re: "Easiest DIY solution is to turn out the lights ;-)"
>
> Just try that outdoors.
>
> "Honey, where's the on-off switch for the sun?"
Bottom line: convince manufacturers we hate this glare and we want them
to go back to those displays (at least in this respect) we had until may
be two years ago (. They have choosen this technology because they think
that every thing that shines is gold, and most certainly, because it
helps them mask quality defiencies at a lower cost ...

I for one will not buy a laptop with this kind of display and if this
means I have to postpone a purchase, so be it. I'll go back to mainly
using my desktop at home. And I have a wide choice of flat screens, none
of them using this "f... technology"! I cannot believe none of us here
know why it is so popular...with manufacturers!

Regards

--
John Doue

"John Doue" <notwobe******.com> wrote in message
news:9Vgdh.272$Za7.162@read3.inet.fi
> Barry Watzman wrote:
>> Re: "Easiest DIY solution is to turn out the lights ;-)"
>>
>> Just try that outdoors.
>>
>> "Honey, where's the on-off switch for the sun?"
> Bottom line: convince manufacturers we hate this glare and we want
> them to go back to those displays (at least in this respect) we had
> until may be two years ago (. They have choosen this technology
> because they think that every thing that shines is gold, and most
> certainly, because it helps them mask quality defiencies at a lower
> cost ...
> I for one will not buy a laptop with this kind of display and if this
> means I have to postpone a purchase, so be it. I'll go back to mainly
> using my desktop at home. And I have a wide choice of flat screens,
> none of them using this "f... technology"! I cannot believe none of
> us here know why it is so popular...with manufacturers!

Are they using this technology for stand alone external monitors yet
too? That is what I use most of the time with my laptop.

--
Bill

BillW50 wrote:
> "John Doue" <notwobe******.com> wrote in message
> news:9Vgdh.272$Za7.162@read3.inet.fi
>> Barry Watzman wrote:
>>> Re: "Easiest DIY solution is to turn out the lights ;-)"
>>>
>>> Just try that outdoors.
>>>
>>> "Honey, where's the on-off switch for the sun?"
>> Bottom line: convince manufacturers we hate this glare and we want
>> them to go back to those displays (at least in this respect) we had
>> until may be two years ago (. They have choosen this technology
>> because they think that every thing that shines is gold, and most
>> certainly, because it helps them mask quality defiencies at a lower
>> cost ...
>> I for one will not buy a laptop with this kind of display and if this
>> means I have to postpone a purchase, so be it. I'll go back to mainly
>> using my desktop at home. And I have a wide choice of flat screens,
>> none of them using this "f... technology"! I cannot believe none of
>> us here know why it is so popular...with manufacturers!
>
> Are they using this technology for stand alone external monitors yet
> too? That is what I use most of the time with my laptop.
>
Not that I know, never seen one.

--
John Doue

John Doue wrote:

> I cannot believe none of
> us here know why it is so popular...with manufacturers!

It's the _consumers_ that have driven the manufacturers to switch to the
"Ultrabright" type highly reflective displays, not the other way around.

Joe Average wants his movies and gameplay to be BRIGHT when viewed on his
laptop.

The true laptop user and road warrior far prefers the matte displays.
--
James

Visit the Thinkpad Forums
http://forum.thinkpads.com

JHEM wrote:
> John Doue wrote:
>
>> I cannot believe none of
>> us here know why it is so popular...with manufacturers!
>
> It's the _consumers_ that have driven the manufacturers to switch to the
> "Ultrabright" type highly reflective displays, not the other way around.
>
> Joe Average wants his movies and gameplay to be BRIGHT when viewed on his
> laptop.
>
> The true laptop user and road warrior far prefers the matte displays.

How can you be so sure, it is the users' fault? Business users certainly
don't like those displays and they still represent a significant share
of the market. And if what you are saying was true, how come the flat
panel displays for desktops ignore this technology?

--
John Doue

Barry Watzman wrote:
> Re: "Easiest DIY solution is to turn out the lights ;-)"
>
> Just try that outdoors.
>
> "Honey, where's the on-off switch for the sun?"

I have not done the math in several years, but last I checked,
the sun is rather bright. Assume you could achieve a very low reflection
coefficient and your display will still be dimmer than the reflection.

Take your typical CRT display outside and you'll find you can't see it
either.

Bottom line is that using emissive technologies in direct sunlight is
ill-advised. Use a reflective technology and you'll have better results.

Short term marketing fiascos aside, vendors will sell what people will
buy. If you want a dim display with short battery life that you can
read better outside, you're outa luck.
mike

"mike" <spamme9******.com> wrote in message
news:Xgbdh.2756$Qa7.1379@trnddc03...
> Serial # 19781010 wrote:
>> Hello,
>> My old laptop became obsolete so i decided to go for a new laptop.
>> I was hesitant to buy a laptop with the new refelctive (antiglare etc)
>> screen but because there are almost no laptops without these news
>> screen i bought one.
>> Well I am very disapointed. With just moderated light from the outside
>> i see everything reflected on the screen. In white parts (opened word
>> document or so) it is not to bad. But on darker parts of the screen it
>> is very distracting and annoying.
>> Maybe i get use to it (:-) but so far i am not to optimism about this.
>>
>> I looked on the internet for antiglare screens but they seem all very
>> expensive (over $40,- for just a peace of plastic). Does anybody know
>> a diy sollution?
>>
>> Bu
>
> AntiGlare is an impedance matching problem. You want the surface index of
> refraction to match the index of air. Your camera lens does this with a
> complex layering to approximate the match over the visible range.
> If you've ever touched your lens, you know that skin oil messes up this
> match. Not very practical for a laptop screen.
>

That is not actually how anti reflective coatings work. If the refractive
indexes matched then it wouldn't work on a lens. They work by actually
creating two reflective surfaces, but arranging for them to be one quarter
of a wavelength apart. The light reflected from the rear boundary then
arrives at the front boundary 180 degrees out of phae with the light
reflected from the front boundary whereupon the two wavefronts cancel each
other. Normally this occurs well at a single wavelength, but with multiple
coatings the range of wavelengths over which this works can be considerably
expanded. When you apply a fingerprint to the surface, the fingerprint
creates another reflective surface which will not be a quarter wavelength
different hence the fingerprinted patch becomes very reflective. Cleaning
fingerprints off without degrading the underlying coating is near
impossible.

There is an electrical analogy where two very different transmission lines
can be matched by adjusting the length of one or both of them or even an
auxiliary line (this later one not possible in optics) such that any
standing waves cancel. This is in fact a much used technique to match
awkward lines.

If your transmission line theory is up to it see

http://weewave.mer.utexas.edu/DPN_fi...l/dbl_tnr.html

for a discussion. But if you don't understand complex maths or Smith
charts - don't bother.

"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:45758c42$0$13742$4c368faf@roadrunner.com...
> Re: "Easiest DIY solution is to turn out the lights ;-)"
>
> Just try that outdoors.
>
> "Honey, where's the on-off switch for the sun?"

Total eclipse?