Interesting fact LCD panels...

I just put on my new polarized sunglasses while looking at my 20.1" LCD plat
panel display...and to my surprise I found that the light emitted from it is
TOTALLY blacked out by turning my head sideways.

I wouldn't have been surprised if it had SOME effect, as would be expected
when using a pol filter on my SLR/DSLR lenses, but TOTALLY BLACK???

This light is somehow singularly directional.
Very interesting.
Try it!

-Another interesting side-effect:
When you black out the screen in this way, the only thing you see is very
brightly iluminated DUST on the screen surface, which is still basking
in--and refelcting for your viewing pleasure--the light which you cannot
otherwise see.
Cool, aye?

I just put on my new polarized sunglasses while looking at my 20.1" LCD plat
panel display...and to my surprise I found that the light emitted from it is
TOTALLY blacked out by turning my head sideways.

I wouldn't have been surprised if it had SOME effect, as would be expected
when using a pol filter on my SLR/DSLR lenses, but TOTALLY BLACK???

This light is somehow singularly directional.
Very interesting.
Try it!

-Another interesting side-effect:
When you black out the screen in this way, the only thing you see is very
brightly iluminated DUST on the screen surface, which is still basking
in--and refelcting for your viewing pleasure--the light which you cannot
otherwise see.
Cool, aye?

Kibo informs me that "Mark M"
stated that:

I just put on my new polarized sunglasses while looking at my 20.1" LCD plat
panel display...and to my surprise I found that the light emitted from it is
TOTALLY blacked out by turning my head sideways.

That's normal for any kind of LCD display. You'll see exactly the same
effect when looking at a laptop screen, a digital watch, or a
calculator. LCD screens consist of a sheet of polarising film on top of
a sandwiched layer of liquid crystal cells whose polarisation is
controlled electronically. The combination of the cells & the polarising
filter control how much light is let through from the screens backlight.
A side effect of this system is the effect you've noticed.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Kibo informs me that "Mark M"
stated that:

I just put on my new polarized sunglasses while looking at my 20.1" LCD plat
panel display...and to my surprise I found that the light emitted from it is
TOTALLY blacked out by turning my head sideways.

That's normal for any kind of LCD display. You'll see exactly the same
effect when looking at a laptop screen, a digital watch, or a
calculator. LCD screens consist of a sheet of polarising film on top of
a sandwiched layer of liquid crystal cells whose polarisation is
controlled electronically. The combination of the cells & the polarising
filter control how much light is let through from the screens backlight.
A side effect of this system is the effect you've noticed.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

wrote in message
...
Kibo informs me that "Mark M"
stated that:

I just put on my new polarized sunglasses while looking at my 20.1" LCD
plat
panel display...and to my surprise I found that the light emitted from it
is
TOTALLY blacked out by turning my head sideways.

That's normal for any kind of LCD display. You'll see exactly the same
effect when looking at a laptop screen, a digital watch, or a
calculator. LCD screens consist of a sheet of polarising film on top of
a sandwiched layer of liquid crystal cells whose polarisation is
controlled electronically. The combination of the cells & the polarising
filter control how much light is let through from the screens backlight.
A side effect of this system is the effect you've noticed.

I suspected that it must be normal, but I wasn't aware that each screen had
a polarizing film, etc. It makes perfect sense, but it's still interesting.

wrote in message
...
Kibo informs me that "Mark M"
stated that:

I just put on my new polarized sunglasses while looking at my 20.1" LCD
plat
panel display...and to my surprise I found that the light emitted from it
is
TOTALLY blacked out by turning my head sideways.

That's normal for any kind of LCD display. You'll see exactly the same
effect when looking at a laptop screen, a digital watch, or a
calculator. LCD screens consist of a sheet of polarising film on top of
a sandwiched layer of liquid crystal cells whose polarisation is
controlled electronically. The combination of the cells & the polarising
filter control how much light is let through from the screens backlight.
A side effect of this system is the effect you've noticed.

I suspected that it must be normal, but I wasn't aware that each screen had
a polarizing film, etc. It makes perfect sense, but it's still interesting.

Kibo informs me that "Mark M"
stated that:

I suspected that it must be normal, but I wasn't aware that each screen had
a polarizing film, etc. It makes perfect sense, but it's still interesting.

ObTrivia: Some years ago, there was a company that made a business of
modifying laptop screens to be 'secure' from people peeping over your
shoulder, (eg; when flying, or in meetings), by peeling the polarising
film from the screen. This made the image invisible unless you wore
polarised glasses.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

Kibo informs me that "Mark M"
stated that:

I suspected that it must be normal, but I wasn't aware that each screen had
a polarizing film, etc. It makes perfect sense, but it's still interesting.

ObTrivia: Some years ago, there was a company that made a business of
modifying laptop screens to be 'secure' from people peeping over your
shoulder, (eg; when flying, or in meetings), by peeling the polarising
film from the screen. This made the image invisible unless you wore
polarised glasses.

--
W
. | ,. w , "Some people are alive only because
\|/ \|/ it is illegal to kill them." Perna condita delenda est
---^----^---------------------------------------------------------------

wrote in message
...
Kibo informs me that "Mark M"
stated that:

I suspected that it must be normal, but I wasn't aware that each screen
had
a polarizing film, etc. It makes perfect sense, but it's still
interesting.

ObTrivia: Some years ago, there was a company that made a business of
modifying laptop screens to be 'secure' from people peeping over your
shoulder, (eg; when flying, or in meetings), by peeling the polarising
film from the screen. This made the image invisible unless you wore
polarised glasses.

Now that's cool.
-An invisible screen.

wrote in message
...
Kibo informs me that "Mark M"
stated that:

I suspected that it must be normal, but I wasn't aware that each screen
had
a polarizing film, etc. It makes perfect sense, but it's still
interesting.

ObTrivia: Some years ago, there was a company that made a business of
modifying laptop screens to be 'secure' from people peeping over your
shoulder, (eg; when flying, or in meetings), by peeling the polarising
film from the screen. This made the image invisible unless you wore
polarised glasses.

Now that's cool.
-An invisible screen.