Upscaling to Hi Def
 

Upscaling to Hi Def
 

"Dave Farrance" wrote in message
...
wrote:
So the few flat-panels that display 720p as a reduced size image in a
black frame are just skimping on the processing requirement.

No - they are maintaining the proper aspect ration of 16:9 material
1280*720 rather than 1280*768

(it isn't a frame all the way round, they just have small black bars top and
bottom)

Loz

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"loz" wrote:

"Dave Farrance" wrote
So the few flat-panels that display 720p as a reduced size image in a
black frame are just skimping on the processing requirement.

No - they are maintaining the proper aspect ration of 16:9 material
1280*720 rather than 1280*768

(it isn't a frame all the way round, they just have small black bars top and
bottom)

OK, I was thinking of the 1366x768 16:9 variety. Checking back, I see
that it was you that initially said that a border was left at each
side. By that, you meant *only* the top and bottom "sides" in a
1280x768 display?

--
Dave Farrance

Upscaling to Hi Def
 

"Dave Farrance" wrote in message
...
"loz" wrote:

No - they are maintaining the proper aspect ration of 16:9 material
1280*720 rather than 1280*768

OK, I was thinking of the 1366x768 16:9 variety.

Good point.
I was only refering to my own TV that is 1280x768
Clearly a 1366x768 is already 16:9

Checking back, I see
that it was you that initially said that a border was left at each
side. By that, you meant *only* the top and bottom "sides" in a
1280x768 display?

Yes, the top and bottom sides :-)

Loz

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Hi,

"Stewart Pinkerton" wrote in message
...
On Mon, 20 Mar 2006 21:08:23 GMT, Dave Farrance
wrote:

"loz" wrote:

"Dave Farrance" wrote

The 720p digital stream resolution is defined as 1280x720.
But HD-Ready displays with a similar resolution are actually either
15:9 1280x768 displays or 16:9 1366x768 displays.
So in order to display 720p, the 15:9 displays put black bars at the
top and bottom, and the 16:9 displays put a black frame all the way
around wasting 12% of the display.
So I do wonder why the heck they didn't make the displays 1280x720?

Because they use the same panels with PCs where 768 is a common resolution.
Saves making 2 resolutions of panels.

Maybe that's it. But it doesn't seem a very satisfactory explanation.
Widescreen PC displays appeared after TV widescreen IIRC. I would have
thought that they'd give priority to the TV resolution because that's
where the majority of the sales would be.

Not actually true. The balance is shifting as of last Christmas, but
previously, corporate sales greatly outstripped domestic. I work in IT
for Royal Bank of Scotland Group, and we have more than 70 *thousand*
flat screens, from 17" LCD to 50" plasma.

I was about to say the same thing - at Matrox we supplied at very large
number of DVI cards (when the technology was very new) to drive these
things, and the banks were without doubt the biggest 'early adopters' of
the digital display technologies. In London it was to some extent a
matter of rent - putting four or six big CRTs on a dealers desk meant
having less traders in a dealing room. The extra cost of using DVI
panels was easily offset by the extra space for people. The savings in
air-con costs wasn't insignificant either!

regards,

Glenn.

Upscaling to Hi Def
 

Glenn Booth wrote:
Hi,

"Stewart Pinkerton" wrote in message
...
On Mon, 20 Mar 2006 21:08:23 GMT, Dave Farrance
wrote:

"loz" wrote:

"Dave Farrance" wrote

The 720p digital stream resolution is defined as 1280x720.
But HD-Ready displays with a similar resolution are actually either
15:9 1280x768 displays or 16:9 1366x768 displays.
So in order to display 720p, the 15:9 displays put black bars at the
top and bottom, and the 16:9 displays put a black frame all the way
around wasting 12% of the display.
So I do wonder why the heck they didn't make the displays 1280x720?

Because they use the same panels with PCs where 768 is a common resolution.
Saves making 2 resolutions of panels.

Maybe that's it. But it doesn't seem a very satisfactory explanation.
Widescreen PC displays appeared after TV widescreen IIRC. I would have
thought that they'd give priority to the TV resolution because that's
where the majority of the sales would be.

Not actually true. The balance is shifting as of last Christmas, but
previously, corporate sales greatly outstripped domestic. I work in IT
for Royal Bank of Scotland Group, and we have more than 70 *thousand*
flat screens, from 17" LCD to 50" plasma.

I was about to say the same thing - at Matrox we supplied at very large
number of DVI cards (when the technology was very new) to drive these
things, and the banks were without doubt the biggest 'early adopters' of
the digital display technologies. In London it was to some extent a
matter of rent - putting four or six big CRTs on a dealers desk meant
having less traders in a dealing room. The extra cost of using DVI
panels was easily offset by the extra space for people. The savings in
air-con costs wasn't insignificant either!

How does changing the type of monitors on someone's desk make for
cheaper air-con?

Dom

Upscaling to Hi Def
 

On 30 Mar 2006 00:17:43 -0800, "DVDfever Dom" wrote:


Glenn Booth wrote:
Hi,

"Stewart Pinkerton" wrote in message
...
On Mon, 20 Mar 2006 21:08:23 GMT, Dave Farrance
wrote:

"loz" wrote:

"Dave Farrance" wrote

The 720p digital stream resolution is defined as 1280x720.
But HD-Ready displays with a similar resolution are actually either
15:9 1280x768 displays or 16:9 1366x768 displays.
So in order to display 720p, the 15:9 displays put black bars at the
top and bottom, and the 16:9 displays put a black frame all the way
around wasting 12% of the display.
So I do wonder why the heck they didn't make the displays 1280x720?

Because they use the same panels with PCs where 768 is a common resolution.
Saves making 2 resolutions of panels.

Maybe that's it. But it doesn't seem a very satisfactory explanation.
Widescreen PC displays appeared after TV widescreen IIRC. I would have
thought that they'd give priority to the TV resolution because that's
where the majority of the sales would be.

Not actually true. The balance is shifting as of last Christmas, but
previously, corporate sales greatly outstripped domestic. I work in IT
for Royal Bank of Scotland Group, and we have more than 70 *thousand*
flat screens, from 17" LCD to 50" plasma.

I was about to say the same thing - at Matrox we supplied at very large
number of DVI cards (when the technology was very new) to drive these
things, and the banks were without doubt the biggest 'early adopters' of
the digital display technologies. In London it was to some extent a
matter of rent - putting four or six big CRTs on a dealers desk meant
having less traders in a dealing room. The extra cost of using DVI
panels was easily offset by the extra space for people. The savings in
air-con costs wasn't insignificant either!

How does changing the type of monitors on someone's desk make for
cheaper air-con?

Because LCD panels generate a lot less heat than CRT monitors.

--
Nigel Barker
Live from the sunny Cote d'Azur

Upscaling to Hi Def
 

Hi,

"Nigel Barker" wrote in message
...
On 30 Mar 2006 00:17:43 -0800, "DVDfever Dom" wrote:


How does changing the type of monitors on someone's desk make for
cheaper air-con?

Because LCD panels generate a lot less heat than CRT monitors.

Bingo. Especially on a dealing floor with upwards of 1,000 displays.
One room at Merrill Lynch has around 3,000 Eizo flat panels, and I'd
guess that Bloomberg is bigger. Take a look at the relative heat
output of TFTs vs. CRTs, and that's a lot of watts of heat to deal
with! I'd hate to see the leccy bill.

Regards,

Glenn.