MessageView 421F schematic

Pooh Bear · Apr 19, 2005

taku wrote:

Hi
I was wondering if anyone knew if and where i could get round lcd
screens manufactured or possibly the price range if i could get
someone to manufacture it for me. I've been doing some research and
all the manufacturers seem to only build rectangular ones, but yet
i've seen at certain shows / awards that they sometimes use lcd/plasma
screens that are of a strange shape. I am looking for screens with a
radius of 15 inches.
Thanx

They're made rectangular (a) to make efficient use of the expensive
optically flat glass (b) 'cos glass doesn't break into circles.

Graham.

Pooh Bear · Apr 19, 2005

JW wrote:

On Mon, 18 Apr 2005 20:42:23 -0700 "John Musselman" <fake@fake.org> wrote
in Message id: <u6%8e.483$2X2.104@okepread06>:

I don't think they make them round but I'll ask the experts.

http://www.geeks.com/pix/wootlp.htm

When you click on the details - you get the expected answer. I was looking
for the date on the page itself - they really ought to have put it there in
small text at the bottom.

Graham

Tim Wescott · Apr 19, 2005

Casey wrote:

JW said

"John Musselman" <fake@fake.org> wrote

I don't think they make them round but I'll ask the experts.

http://www.geeks.com/pix/wootlp.htm

What use they'd be is anyone's guess.

Might be great for testing the upcoming beta version of
Microsoft Portholes XP ....

Casey
Portholes or potholes?

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Meindert Sprang · Apr 19, 2005

"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:42651D07.4A363B04@hotmail.com...

taku wrote:

Hi
I was wondering if anyone knew if and where i could get round lcd
screens manufactured or possibly the price range if i could get
someone to manufacture it for me. I've been doing some research and
all the manufacturers seem to only build rectangular ones, but yet
i've seen at certain shows / awards that they sometimes use lcd/plasma
screens that are of a strange shape. I am looking for screens with a
radius of 15 inches.
Thanx

They're made rectangular (a) to make efficient use of the expensive
optically flat glass (b) 'cos glass doesn't break into circles.

Glass breaks perfectly into circles. How do you think portholes are made?

Meindert

JW · Apr 20, 2005

On Tue, 19 Apr 2005 14:11:51 -0000 Grant Edwards <grante@visi.com> wrote
in Message id: <116a4d7r9no5vb7@corp.supernews.com>:

On 2005-04-19, JW <none@dev.nul> wrote:
On Mon, 18 Apr 2005 20:42:23 -0700 "John Musselman" <fake@fake.org> wrote
in Message id: <u6%8e.483$2X2.104@okepread06>:

I don't think they make them round but I'll ask the experts.

http://www.geeks.com/pix/wootlp.htm

What use they'd be is anyone's guess.

I think this explains the primary use:

http://www.geeks.com/details.asp?invtid=ROUNDLCD

<sheepish grin>

D'oh! I've been trolled by a website.

Michael A. Terrell · Apr 20, 2005

JW wrote:

sheepish grin

D'oh! I've been trolled by a website.

There used to be round monitors in the early days of TV.

--
Former professional electron wrangler.

Michael A. Terrell
Central Florida

John Woodgate · Apr 20, 2005

I read in sci.electronics.design that Michael A. Terrell
<mike.terrell@earthlink.net> wrote (in
<4266B3A0.1A721DEA@earthlink.net&gt

about 'A round shaped LCD screen', on
Wed, 20 Apr 2005:

There used to be round monitors in the early days of TV.

English Electric 16 inch round tubes, with metal flares, all at 16 kV or
so! They even put some in up-market receivers.
--
Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

Jim Thompson · Apr 20, 2005

On Wed, 20 Apr 2005 21:43:42 +0100, John Woodgate
<jmw@jmwa.demon.contraspam.yuk> wrote:

I read in sci.electronics.design that Michael A. Terrell
mike.terrell@earthlink.net> wrote (in
4266B3A0.1A721DEA@earthlink.net&gt about 'A round shaped LCD screen', on
Wed, 20 Apr 2005:

There used to be round monitors in the early days of TV.

English Electric 16 inch round tubes, with metal flares, all at 16 kV or
so! They even put some in up-market receivers.

480)460-2350 | |
| E-mail Address at Website Fax

Kryten · Apr 20, 2005

"JW" <none@dev.nul> wrote in message
news:9k9c61hjv1vqg31hipnlj2bcef3fveevi5@4ax.com...

http://www.geeks.com/details.asp?invtid=ROUNDLCD

I though perhaps the OP was thinking of an LCD with polar co-ordinates.

For something like a sonar scanner for boats.

Interesting technical challenge...

Scott Moore · Apr 20, 2005

Kryten wrote:

"JW" <none@dev.nul> wrote in message
news:9k9c61hjv1vqg31hipnlj2bcef3fveevi5@4ax.com...

http://www.geeks.com/details.asp?invtid=ROUNDLCD

I though perhaps the OP was thinking of an LCD with polar co-ordinates.

For something like a sonar scanner for boats.

Interesting technical challenge...

Actually, 3" round LCDs would be a great innovation.

Aircraft instruments are 3" round, and it is impossible to
find them to make compatible instruments that fit in those holes.
The ones that are available usually are square, and require the
panel be modified.

Pooh Bear · Apr 20, 2005

"Michael A. Terrell" wrote:

JW wrote:

sheepish grin

D'oh! I've been trolled by a website.

There used to be round monitors in the early days of TV.

With kinda rectangular bezels.

Graham

Joel Kolstad · Apr 20, 2005

"Michael A. Terrell" wrote:
There used to be round monitors in the early days of TV.

....and the early days of oscilloscopes!

Dr. Anton T. Squeegee · Apr 21, 2005

In article <1113704245.611111.174770@l41g2000cwc.googlegroups.com>,
joe4702@hotmail.com says...

Hi,

I just purchased a Tek 2445A o'scope
for home hobby use and have two questions.

1) How do I activate the diagnostics? I'm use to
modern digital scopes at work where everything
is menu driven and pretty obvious.

<Snippety>

A minor rant. This, IMO, is an excellent reason NOT to have
everything 'menu driven and pretty obvious.' Such things don't help the
operator to gain a better understanding of O-scope operation and how
best to make measurements with it.

With that said: There exists a 'TekScopes' mailing list at Yahoo
Groups. You would do well to join in the fun.

http://groups.yahoo.com/group/TekScopes/?tab=s

Hope that helps. Enjoy your new toy. ;-)

--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute.
(Known to some as Bruce Lane, ARS KC7GR,
kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com
"If Salvador Dali had owned a computer, would it have been equipped
with surreal ports?"

Pooh Bear · Apr 21, 2005

Scott Moore wrote:

Kryten wrote:
"JW" <none@dev.nul> wrote in message
news:9k9c61hjv1vqg31hipnlj2bcef3fveevi5@4ax.com...

http://www.geeks.com/details.asp?invtid=ROUNDLCD

I though perhaps the OP was thinking of an LCD with polar co-ordinates.

For something like a sonar scanner for boats.

Interesting technical challenge...

Actually, 3" round LCDs would be a great innovation.

Aircraft instruments are 3" round, and it is impossible to
find them to make compatible instruments that fit in those holes.
The ones that are available usually are square, and require the
panel be modified.

I expect the aircraft market could bear the cost too.

Graham

Pooh Bear · Apr 21, 2005

Joel Kolstad wrote:

"Michael A. Terrell" wrote:
There used to be round monitors in the early days of TV.

...and the early days of oscilloscopes!

Hmmmmm - I feel a post to abse coming on !

Graham

John Harlow · Apr 21, 2005

Aircraft instruments are 3" round, and it is impossible to
find them to make compatible instruments that fit in those holes.
The ones that are available usually are square, and require the
panel be modified.

I expect the aircraft market could bear the cost too.

Oh yeah, the aviation market is booming.

Not.

Peter · Apr 21, 2005

"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:4266E165.FCA251C@hotmail.com...

Meindert Sprang wrote:

"Pooh Bear" <rabbitsfriendsandrelations@hotmail.com> wrote in message
news:42651D07.4A363B04@hotmail.com...

taku wrote:

Hi
I was wondering if anyone knew if and where i could get round lcd
screens manufactured or possibly the price range if i could get
someone to manufacture it for me. I've been doing some research and
all the manufacturers seem to only build rectangular ones, but yet
i've seen at certain shows / awards that they sometimes use
lcd/plasma
screens that are of a strange shape. I am looking for screens with a
radius of 15 inches.
Thanx

They're made rectangular (a) to make efficient use of the expensive
optically flat glass (b) 'cos glass doesn't break into circles.

Glass breaks perfectly into circles. How do you think portholes are made?

What shape are the bits left over ?

That's important to LCD manufacture. See (a).

Still doesn't explain b)
There are lots of examples of circular glass around me, flashlight lens,
vanity mirror, telescope, old radio bezel, spirit level. Rectangular LCDs
are much more convenient and efficient to make and connect.
I know some guys on another newsgroup who might like a small circular LCD to
replace a 6E5 but I suspect it will take a few more years to become cost
effective.

Peter

Spehro Pefhany · Apr 21, 2005

On Thu, 21 Apr 2005 11:50:16 +0100, the renowned "Peter"
<moocowmoo@newprovidence.demon.co.uk> wrote:

There are lots of examples of circular glass around me, flashlight lens,
vanity mirror, telescope, old radio bezel, spirit level. Rectangular LCDs
are much more convenient and efficient to make and connect.
I know some guys on another newsgroup who might like a small circular LCD to
replace a 6E5 but I suspect it will take a few more years to become cost
effective.

Peter

It's fairly common to break the corners off a monochrome LCD to allow
it to fit within a circular or elliptical outline. Cheaper than a true
circular outline.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Ariane · Apr 21, 2005

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--
Posted by News Bulk Poster
Unregistered version

Rich Grise · Apr 21, 2005

On Thu, 21 Apr 2005 03:37:42 +0100, Pooh Bear wrote:

Scott Moore wrote:
Kryten wrote:
"JW" <none@dev.nul> wrote in message
http://www.geeks.com/details.asp?invtid=ROUNDLCD

I though perhaps the OP was thinking of an LCD with polar co-ordinates.
For something like a sonar scanner for boats.
Interesting technical challenge...
Actually, 3" round LCDs would be a great innovation.
Aircraft instruments are 3" round, and it is impossible to
find them to make compatible instruments that fit in those holes.
The ones that are available usually are square, and require the
panel be modified.

I expect the aircraft market could bear the cost too.

Apparently, nobody's paying attention to the little datum that they go
in square holes. It's not that hard to draw round things on a rectangular
screen, you know.

Cheers!
Rich

MessageView 421F schematic

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