What is the advantage of a flat screen tv (CRT not LCD) over non-flat?

[edprush]

Is it worth the extra cost?

I'm only looking to purchase a 20" tv.

 

[GtPrOjEcTX]

how is the light level in the room where it would be? flat is less reflection.
the view angle is also better.
also generally it has better picture as well.

 

[vshah]

sharper, less distortion, looks a heckova lot cooler....

but the first two are the big selling points...also, flat screens usually have higher quality tubes than non-flat...

 

[edprush]

I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

 

[CraigRT]

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I often wonder things like that... no friggin clue!

 

[edprush]

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

This MAY be the reason. Today's CCD cameras do not have the curved lens as earlier cameras had. Therefore the flat lens camera image is better reproduced on a flat screen....the thing is that I have no idea when this change took place.

 

[MDE]

Less glare, better picture.

 

[Savij]

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

 

[imported_KirbsAw]

Originally posted by: Savij

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

makes sense to me

 

[MDE]

Originally posted by: Savij

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

Liar.

 

[Goosemaster]

Originally posted by: Savij

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

Do flat screens would require stronger glass? Because Glass is brittle and you have a vacum inside, I would think that with a flat surface, all stress would be transfered to the center of the glass, unlike how concavity seems to allow for added strength and dispersion of energy.

 

[slpaulson]

Originally posted by: Goosemaster

Originally posted by: Savij

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

Do flat screens would require stronger glass? Because Glass is brittle and you have a vacum inside, I would think that with a flat surface, all stress would be transfered to the center of the glass, unlike how concavity seems to allow for added strength and dispersion of energy.

In my experience flat screens are heavier due to thicker glass.

 

[Amused]

Originally posted by: cRazYdood

Originally posted by: Goosemaster

Originally posted by: Savij

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

Do flat screens would require stronger glass? Because Glass is brittle and you have a vacum inside, I would think that with a flat surface, all stress would be transfered to the center of the glass, unlike how concavity seems to allow for added strength and dispersion of energy.

In my experience flat screens are heavier due to thicker glass.

Yep, this is why the old Trinitron Sony TVs were always so much heavier. The glass was thicker.

 

[Qaabus]

Flatscreens take longer to change the channel

 

[Zenmervolt]

Originally posted by: Qaabus
Flatscreens take longer to change the channel

No, that's purely a function of the tuner chip and has nothing to do with the picture tube design.

ZV

 

[Goosemaster]

Originally posted by: Amused

Originally posted by: cRazYdood

Originally posted by: Goosemaster

Originally posted by: Savij

Originally posted by: edprush
I wonder why they ever built convex CRT screens...what technological advance allows for a flat screen in a CRT that wasn't around before?

I'm no expert but:
I thought it was because CRTs make a picture using a Cathod Ray Tube. The curved lense basically makes sure that the electrons travel the same distance from the electron gun to any point on the screen. This ensures that the distance between each pixel is the same throughout the screen. If you have a flat screen the distance between the pixels gets larger as you move towards the edges. A flat screen electron beam has to change its scanning speed as it goes across so that the picture doesn't appear distorted on a flat screen.

Do flat screens would require stronger glass? Because Glass is brittle and you have a vacum inside, I would think that with a flat surface, all stress would be transfered to the center of the glass, unlike how concavity seems to allow for added strength and dispersion of energy.

In my experience flat screens are heavier due to thicker glass.

Yep, this is why the old Trinitron Sony TVs were always so much heavier. The glass was thicker.

So I was right? Sweet. I wasn;t sure if I was making any sense

 

[thomsbrain]

curved tv's look stupid. that's all you need to know.

 

[Justin218]

we have a 36 inch flatscreen and damn that thing weighs 250lbs.

 

[Rumpltzer]

Originally posted by: Justin218
we have a 36 inch flatscreen and damn that thing weighs 250lbs.

How often do you pick it up?

 

[JustAnAverageGuy]

Originally posted by: Rumpltzer

Originally posted by: Justin218
we have a 36 inch flatscreen and damn that thing weighs 250lbs.

How often do you pick it up?

I have a 21" CRT monitor, and that thing is DAMN heavy.

 

[yhelothar]

Cheap flat screens just use a flat glass, and will be far more distorted than a conventional non flat screen tv.
Unless the screen is a sony trinitron tube, I would not get flat screen.

Unless you have a lot of glare in your room, the curved glass should not be bothersome. Flatscreens are overrated IMO...
then again, check out my uber l337 dual 21" flatness

also all old tv's are heavy..
My old curved screen 21" manufactured in 1996 weighed 95lbs..
my new 21" FP Trinitron tube manufactured in 2003 weighs 65lbs