Curved is the new flat
 

So there we are then, we get rid of space hogging hurnier inducing crts, and
go wafer thin flat screen. Now by all acounts we are going curved screen.
Why? What is the point?

I've not seen one and don't even know what sort of curve we are talking
about, but buth LG and Samsung seem to be tallking up the idea offering
ideas like moor natural viewing, and stuff like that. Is this just another
fad or is there a valid good reason. I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Brian

--
From the Sofa of Brian Gaff Reply address is active

Curved is the new flat
 

"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing crts, and
go wafer thin flat screen. Now by all acounts we are going curved screen.
Why? What is the point?

I've not seen one and don't even know what sort of curve we are talking
about, but buth LG and Samsung seem to be tallking up the idea offering
ideas like moor natural viewing, and stuff like that. Is this just another
fad or is there a valid good reason. I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Brian


******

Do horizons look bent as they can on curved screens in cinemas?

Regards
David

PS might be a gimmick like 3D as turned out to be.

Curved is the new flat
 

In article , David wrote:


"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing crts,
and go wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?


Do horizons look bent as they can on curved screens in cinemas?

And are the sensor arrays in the cameras also curved? If not, then a flat
screen may give better apparent geometry when viewed anyway.

Jim

--
Please use the address on the audiomisc page if you wish to email me.
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html
Audio Misc http://www.audiomisc.co.uk/index.html

Curved is the new flat
 

In message , Brian Gaff
writes
So there we are then, we get rid of space hogging hurnier inducing crts, and
go wafer thin flat screen. Now by all acounts we are going curved screen.
Why? What is the point?

I've not seen one and don't even know what sort of curve we are talking
about, but buth LG and Samsung seem to be tallking up the idea offering
ideas like moor natural viewing, and stuff like that. Is this just another
fad or is there a valid good reason. I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

I went to John Lewis yesterday, and saw my first curved screen set. It
was simply weird and unnatural. But somehow, it had the effect of making
all the surrounding flat screen sets also seem unnatural!

To be honest, I simply can't see the point of curved screen which is
relatively small compared with something you might find in some cinemas.
The curve only works when you're watching from the focus - and even
then, you're still aware that it's curved.

I have to say that the picture quality was superb. It was very bright
(OK in the very high ambient lighting, but probably far brighter than
you would want at home), but the colours were still very natural.
However, the surface of the screen seemed highly reflective, and this
reflected all the surrounding lighting. In the right(?) circumstances,
it could indeed be a possible fire hazard. I therefore reckon I could
live with an OLED set - provided it was flat, and had the normal
semi-matt screen.
--
Ian

Curved is the new flat
 

I bet nobody else will even give it a moment's thought until it
actually happens, which sooner or later it surely will. I wonder if
the result will be a recall, a ban, or a disclaimer in the manual?

For somebody denied the power of sight you seem to be able to see
quite a lot. Perhaps you should be teaching Uruguayan architects how
to design buildings that don't melt Bentley wing mirrors in London, by
reminding them which way the sun shines in the opposite hemisphere.

Rod.

On Tue, 7 Jan 2014 08:45:10 -0000, "Brian Gaff"
wrote:

I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Curved is the new flat
 

I don't really care as horizons are no longer accessible to me, but it was
announced apparently in Las Vagas recently, that mobile and home are about
to be curved.....

Brian

--
From the Sofa of Brian Gaff Reply address is active
"David" wrote in message
...


"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing crts,
and
go wafer thin flat screen. Now by all acounts we are going curved screen.
Why? What is the point?

I've not seen one and don't even know what sort of curve we are talking
about, but buth LG and Samsung seem to be tallking up the idea offering
ideas like moor natural viewing, and stuff like that. Is this just another
fad or is there a valid good reason. I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Brian


******

Do horizons look bent as they can on curved screens in cinemas?

Regards
David

PS might be a gimmick like 3D as turned out to be.

Curved is the new flat
 

Grin, well I had sight so I can imagine most things unlike people who have
been blind since birth of course. I imagine its going to be more dangerous
with mobile curved devices, as one might stick t in the sun and start a
fire. This would presumably only work if the curve is in three dimensions
and a paro bala.
Hey, gimmick sat dish, with integral picture change it every day....
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Roderick Stewart" wrote in message
...
I bet nobody else will even give it a moment's thought until it
actually happens, which sooner or later it surely will. I wonder if
the result will be a recall, a ban, or a disclaimer in the manual?

For somebody denied the power of sight you seem to be able to see
quite a lot. Perhaps you should be teaching Uruguayan architects how
to design buildings that don't melt Bentley wing mirrors in London, by
reminding them which way the sun shines in the opposite hemisphere.

Rod.

On Tue, 7 Jan 2014 08:45:10 -0000, "Brian Gaff"
wrote:

I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Curved is the new flat
 

On 07/01/2014 13:39, Brian Gaff wrote:
I don't really care as horizons are no longer accessible to me, but it was
announced apparently in Las Vagas recently, that mobile and home are about
to be curved.....

Brian

On the news today there was an article about the CES in Las Vegas and a
curved smartphone or tablet was shown!

--

Jeff

Curved is the new flat
 

In article ,
Jim Lesurf wrote:

In article , David wrote:


"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing crts,
and go wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?

There is little point with TVs. Cinema screens were flat, but with the
introduction of wide screens a slight curve was introduced to keep the
throw from the projector the same across the screen, thus minimising
brightness drop-off and distortion at the edges. Only with Cinerama and
Dimension 150 was the screen deep-curved to wrap round the audience and
involve them in the picture by filling their field of vision. Even IMAX
which aims at the same effect only curves the screen by enough to
equalize the throw across it.

With a TV is might look pretty for the person sitting dead centre, but
with a family watching it the people off-access are going to get more
distortion on the side of the screen they are off-axis on. It's a
gimmick.

Curved is the new flat
 

If it's big enough it shouldn't matter that the curvature is only in
one axis, as that would just concentrate the sun's heat into a line
instead of a point. TV screens are getting bigger all the time, so a
TV screen with an area of about a couple of square metres will soon
become commonplace, and that's about 2kW of solar energy if it's
placed in the sun. Nobody will realise this because it hasn't been a
problem before. If the heat is concentrated into a line instead of a
point, then that will just increase the probability that some of it
will fall on something inflammable. Keep reading the Daily Mail, and
remember you read it here first...

Rod.

On Tue, 7 Jan 2014 13:43:49 -0000, "Brian Gaff"
wrote:

Grin, well I had sight so I can imagine most things unlike people who have
been blind since birth of course. I imagine its going to be more dangerous
with mobile curved devices, as one might stick t in the sun and start a
fire. This would presumably only work if the curve is in three dimensions
and a paro bala.
Hey, gimmick sat dish, with integral picture change it every day....
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Roderick Stewart" wrote in message
.. .
I bet nobody else will even give it a moment's thought until it
actually happens, which sooner or later it surely will. I wonder if
the result will be a recall, a ban, or a disclaimer in the manual?

For somebody denied the power of sight you seem to be able to see
quite a lot. Perhaps you should be teaching Uruguayan architects how
to design buildings that don't melt Bentley wing mirrors in London, by
reminding them which way the sun shines in the opposite hemisphere.

Rod.

On Tue, 7 Jan 2014 08:45:10 -0000, "Brian Gaff"
wrote:

I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Curved is the new flat
 

On 07/01/2014 08:45, Brian Gaff wrote:
So there we are then, we get rid of space hogging hurnier inducing crts, and
go wafer thin flat screen. Now by all acounts we are going curved screen.
Why? What is the point?

I've not seen one and don't even know what sort of curve we are talking
about, but buth LG and Samsung seem to be tallking up the idea offering
ideas like moor natural viewing, and stuff like that. Is this just another
fad or is there a valid good reason. I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Brian



it's a way to differentiate your expensive tv.
not a good one though - i'd want a flat oled if buying one.

--
Gareth.
That fly.... Is your magic wand.

Curved is the new flat
 

Roderick Stewart wrote:
If it's big enough it shouldn't matter that the curvature is only in
one axis, as that would just concentrate the sun's heat into a line
instead of a point. TV screens are getting bigger all the time, so a
TV screen with an area of about a couple of square metres will soon
become commonplace, and that's about 2kW of solar energy if it's
placed in the sun. Nobody will realise this because it hasn't been a
problem before. If the heat is concentrated into a line instead of a
point, then that will just increase the probability that some of it
will fall on something inflammable. Keep reading the Daily Mail, and
remember you read it here first...

What if the curve is irregular and doesn't focus parallel rays?

Bill

Curved is the new flat
 

"Brian Gaff" wrote in message
...
So there we are then, we get rid of space hogging hurnier inducing crts,
and go wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?

apparently, it's more "immersive" (whatever the **** that is!)

tim

Curved is the new flat
 

"Roger Wilmut" wrote in message
...
In article ,
Jim Lesurf wrote:

In article , David wrote:


"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing
crts,
and go wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?

There is little point with TVs. Cinema screens were flat, but with the
introduction of wide screens a slight curve was introduced to keep the
throw from the projector the same across the screen, thus minimising
brightness drop-off and distortion at the edges. Only with Cinerama and
Dimension 150 was the screen deep-curved to wrap round the audience and
involve them in the picture by filling their field of vision. Even IMAX
which aims at the same effect only curves the screen by enough to
equalize the throw across it.

With a TV is might look pretty for the person sitting dead centre, but
with a family watching it the people off-access are going to get more
distortion on the side of the screen they are off-axis on. It's a
gimmick.

but it's a gimmick that they want you to blow two grand on

tim

Curved is the new flat
 

In message , tim......
writes

"Roger Wilmut" wrote in message
...
In article ,
Jim Lesurf wrote:

In article , David wrote:


"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing
crts,
and go wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?

There is little point with TVs. Cinema screens were flat, but with the
introduction of wide screens a slight curve was introduced to keep the
throw from the projector the same across the screen, thus minimising
brightness drop-off and distortion at the edges. Only with Cinerama and
Dimension 150 was the screen deep-curved to wrap round the audience and
involve them in the picture by filling their field of vision. Even IMAX
which aims at the same effect only curves the screen by enough to
equalize the throw across it.

With a TV is might look pretty for the person sitting dead centre, but
with a family watching it the people off-access are going to get more
distortion on the side of the screen they are off-axis on. It's a
gimmick.

but it's a gimmick that they want you to blow two grand on

The one I saw in John Lewis was a mere £6.5k.
--
Ian

Curved is the new flat
 

Jim Lesurf wrote:

And are the sensor arrays in the cameras also curved? If not, then a
flat screen may give better apparent geometry when viewed anyway.

Hey, good point. Hadn't thought of that!

--
SteveT

Curved is the new flat
 

On Tue, 07 Jan 2014 18:51:42 +0000, Bill Wright
wrote:

Roderick Stewart wrote:
If it's big enough it shouldn't matter that the curvature is only in
one axis, as that would just concentrate the sun's heat into a line
instead of a point. TV screens are getting bigger all the time, so a
TV screen with an area of about a couple of square metres will soon
become commonplace, and that's about 2kW of solar energy if it's
placed in the sun. Nobody will realise this because it hasn't been a
problem before. If the heat is concentrated into a line instead of a
point, then that will just increase the probability that some of it
will fall on something inflammable. Keep reading the Daily Mail, and
remember you read it here first...

What if the curve is irregular and doesn't focus parallel rays?

I could be wrong, but I'm assuming the curvature will be fairly
uniform as that's the way cinema screens are curved, and it would look
odd otherwise. This being so, sod's law dictates that sooner or later
somebody will install one of these monsters in exactly the right place
to catch the sun at exactly the time of day where the focus falls on
something that will make its owner regret the purchase in a big way.

Rod.

Curved is the new flat
 

tim...... wrote:

"Brian Gaff" wrote:

wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?

apparently, it's more "immersive" (whatever the **** that is!)

Seems to leave some people speechless ...

http://www.youtube.com/watch?v=ptJblPp10zA

Curved is the new flat
 

Roderick Stewart wrote:

What if the curve is irregular and doesn't focus parallel rays?

I could be wrong, but I'm assuming the curvature will be fairly
uniform as that's the way cinema screens are curved,

Do you know that for a fact? Could it be that some design genius has
figured that a slight variation of radius along the curve works better?

One little thought. Wouldn't the optimum curve be one that presented
every part of the screen at right angles to the viewer's eye? (Note the
position of the apostrophe, which hints at a drawback!) If so, would the
curve also focus parallel rays? Not at the viewer position obviously,
but some other point along the a perpendicular projected out from the
centre of the screen?

What we need is a geometrician.

Bill

Curved is the new flat
 

On 07/01/2014 16:53, the dog from that film you saw wrote:
On 07/01/2014 08:45, Brian Gaff wrote:
So there we are then, we get rid of space hogging hurnier inducing
crts, and
go wafer thin flat screen. Now by all acounts we are going curved screen.
Why? What is the point?

I've not seen one and don't even know what sort of curve we are talking
about, but buth LG and Samsung seem to be tallking up the idea offering
ideas like moor natural viewing, and stuff like that. Is this just
another
fad or is there a valid good reason. I can see it now.
man standing beside his burned down house. Fireman saying, it was the
curved screen on your tv, guv, it focussed the sun on a pile of magazines
and whoosh.

Brian



it's a way to differentiate your expensive tv.
not a good one though - i'd want a flat oled if buying one.


It wasn't too long ago that we were told curved CRTs were a horrible
distortion of the 'true' image and we should pay more to get them
flattened, now that they're curving the other way they're not distorted?
Remember to buy the optional vertical seating arrangement, so that
everyone can sit centrally in front of the TV.

TV tech has been the emperors new clothes for quite some time, they'll
try anything to keep us buying new TVs. The best one was when they were
able to charge more for TVs that only got wider, whereas previously
bigger TVs got both taller and wider.

Z

Curved is the new flat
 

In article ,
Roderick Stewart wrote:

On Tue, 07 Jan 2014 18:51:42 +0000, Bill Wright
wrote:
This being so, sod's law dictates that sooner or later
somebody will install one of these monsters in exactly the right place
to catch the sun at exactly the time of day where the focus falls on
something that will make its owner regret the purchase in a big way.

Unlikely, because the curve is in the lateral plane only, so there is no
tight focal point.

Curved is the new flat
 

Zimmy wrote:

TV tech has been the emperors new clothes for quite some time, they'll
try anything to keep us buying new TVs.

In the early sixties the sale of new TV sets was slower than the
manufacturers would have liked. People had heard that BBC2 would need a
new set when it started, so they were making the old set last a bit
longer. Some of the manufacturers responded by fitting photocells on the
front of the sets. These controlled the brightness, so when you turned
the light on the picture brightened up. That was flop really, but then
sets started to appear that 'could be converted to 625'. Of course in
most cases this meant no more than that a extra hole had been drilled in
the cabinet and labelled '405/625'.

It was ever thus.

Bill

Curved is the new flat
 

Roger Wilmut wrote:

On Tue, 07 Jan 2014 18:51:42 +0000, Bill Wright
wrote:
This being so, sod's law dictates that sooner or later
.....


No I didn't. Had it been I, Mr Sod and his invaluable law would have
been given capitals.

Bill

Curved is the new flat
 

Roger Wilmut wrote:

Unlikely, because the curve is in the lateral plane only, so there is no
tight focal point.

I think the hypothesis is that even so a big screen would concentrate
the solar radiation enough for any part of the focal line to burn things.

Bill

Curved is the new flat
 

On Wed, 08 Jan 2014 09:03:51 +0000, Bill Wright
wrote:

One little thought. Wouldn't the optimum curve be one that presented
every part of the screen at right angles to the viewer's eye? (Note the
position of the apostrophe, which hints at a drawback!) If so, would the
curve also focus parallel rays? Not at the viewer position obviously,
but some other point along the a perpendicular projected out from the
centre of the screen?

You're describing a circle. For a small section of a circle, the focus
is at half the radius of curvature. The larger the section of a
circle, the more of the light rays don't go exactly through the focus,
which is why large concave reflectors that are supposed to focus
things are parabolic, but a concave mirror doesn't need optical
perfection to set things on fire. Try a shaving mirror, or anything
shiny and curved if it's big enough...

Rod.

Curved is the new flat
 

What if the curve is irregular and doesn't focus parallel rays?

I could be wrong, but I'm assuming the curvature will be fairly
uniform as that's the way cinema screens are curved,



******

Curved screens not sure that all are same.

The cinema I go to it is perfectly flat for modern digital films.

They have a very deep curved screen for the old Cinerama films of the 50's
also gets used for some 70mm process's but they not fit right, I think it
might be too deep a curve. Some films look better on the flat screen but
then lack size impact.

http://www.in70mm.com/pictureville/2...nday/index.htm

Scroll down to " Time to change from flat to curved screen"

Regards
David

Curved is the new flat
 

Just a thought but I recall using controls to reverse the pin-cushion effect
caused in CRT screens by the guns at roughly the centre of the screen having
to send the electron beam further to reach the corners.

Our distance from the extremes of the screen mean we experience the same
effect . If we are at the focus of a curved screen, we are (in theory)
roughly equidistant from the edges of screen. It worked in the huge 360
degree film shows displayed at Disneyland in the Bell Pavilion 30 years ago.

However to achieve something similar you would need a huge screen (by
domestic standards) or very tiny people. It may be clever but to me it is
the wrong application for clever technology.


__________________________________________________ _

Mageia 3 for x86_64, Kernel: 3.8.13.4 -desktop-1.mga3
KDE version 4.10.5 Running on an AMD 4-core processor

Curved is the new flat
 

On Wed, 08 Jan 2014 10:38:57 +0000, Bill Wright
wrote:

Roger Wilmut wrote:

Unlikely, because the curve is in the lateral plane only, so there is no
tight focal point.

I think the hypothesis is that even so a big screen would concentrate
the solar radiation enough for any part of the focal line to burn things.

That amount of direct sunlight will damage an OLED screen.
Apparently they don't like it up 'em.

Curved is the new flat
 

On Wed, 08 Jan 2014 16:44:05 +0000, lid wrote:


I think the hypothesis is that even so a big screen would concentrate
the solar radiation enough for any part of the focal line to burn things.

That amount of direct sunlight will damage an OLED screen.
Apparently they don't like it up 'em.

I wonder how many people know this?

Rod.

Curved is the new flat
 

"Ian Jackson" wrote in message
...
In message , tim......
writes

"Roger Wilmut" wrote in message
...
In article ,
Jim Lesurf wrote:

In article , David
wrote:


"Brian Gaff" wrote in message ...

So there we are then, we get rid of space hogging hurnier inducing
crts,
and go wafer thin flat screen. Now by all acounts we are going curved
screen. Why? What is the point?

There is little point with TVs. Cinema screens were flat, but with the
introduction of wide screens a slight curve was introduced to keep the
throw from the projector the same across the screen, thus minimising
brightness drop-off and distortion at the edges. Only with Cinerama and
Dimension 150 was the screen deep-curved to wrap round the audience and
involve them in the picture by filling their field of vision. Even IMAX
which aims at the same effect only curves the screen by enough to
equalize the throw across it.

With a TV is might look pretty for the person sitting dead centre, but
with a family watching it the people off-access are going to get more
distortion on the side of the screen they are off-axis on. It's a
gimmick.

but it's a gimmick that they want you to blow two grand on

The one I saw in John Lewis was a mere £6.5k.

Oh I don't doubt it

That's the early adopters price

getting down to 2 grand is the price where they start to expect "normal"
punters to start buying