Can fluorescent light emitters be small enough for a monitor

Hi:

Is it possible to make fluorescent light emitters that are small
enough to be the Rs, Gs, and Bs of the pixels of monitors/screens?

Currently most displays use the fluorescent light as a backlight. I'm
currently daydreaming about a hypothetical display in which each R, G,
B of each pixel is an extremely small fluorescent light emitter of
it's own. The problem here is making the fluorescent emitters small
enough. Can this be done, give the state of today's technology. I
doubt it.


Thanks,

Green Xenon
You can only make them with T.R.O.L.L. procedures.

Is it possible to make fluorescent light emitters that are small
enough to be the Rs, Gs, and Bs of the pixels of monitors/screens?

Currently most displays use the fluorescent light as a backlight. I'm
currently daydreaming about a hypothetical display in which each R, G,
B of each pixel is an extremely small fluorescent light emitter of
it's own. The problem here is making the fluorescent emitters small
enough. Can this be done, give the state of today's technology. I
doubt it.

In <6db49fc1-4bd9-469b-a0f5-e131c1d10...@a39g2000prb.googlegroups.com>,

GreenXenon wrote:
Is it possible to make fluorescent light emitters that are small
enough to be the Rs, Gs, and Bs of the pixels of monitors/screens?

Currently most displays use the fluorescent light as a backlight. I'm
currently daydreaming about a hypothetical display in which each R, G,
B of each pixel is an extremely small fluorescent light emitter of
it's own. The problem here is making the fluorescent emitters small
enough. Can this be done, give the state of today's technology. I
doubt it.

  There is an existing display technology where each pixel is a
fluorescent emitter excited by its own individual glow discharge lamp.  I
am guessing that these glow lamps use a neon-xenon mixture or the like to
avoid the temperature dependence of mercury vapor.  I also know that
neon-xenon has been used in fluorescent glow lamps.

  Back to this technology:  The large number of glow lamps and associated
phosphor dots are deployed in a common envelope, so there are not millions
of individual bulbs.

  This is what is used in plasma TV sets.

  The choice of phosphors is limited to ones that will not degrade at an
unacceptable rate from the likely very short excitation wavelength (147
nm for xenon's main "resonance line" IIRC).  In practicality, the choice
is further limited to having the primary colors sufficiently similar to
those in other display technologies (such as CRT) to maintain compatibility
of color gamut.

On May 24, 11:07 am, d...@manx.misty.com (Don Klipstein) wrote:
In <6db49fc1-4bd9-469b-a0f5-e131c1d10...@a39g2000prb.googlegroups.com>,

GreenXenon wrote:
Is it possible to make fluorescent light emitters that are small
enough to be the Rs, Gs, and Bs of the pixels of monitors/screens?

Currently most displays use the fluorescent light as a backlight. I'm
currently daydreaming about a hypothetical display in which each R, G,
B of each pixel is an extremely small fluorescent light emitter of
it's own. The problem here is making the fluorescent emitters small
enough. Can this be done, give the state of today's technology. I
doubt it.

  There is an existing display technology where each pixel is a
fluorescent emitter excited by its own individual glow discharge lamp.  I
am guessing that these glow lamps use a neon-xenon mixture or the like to
avoid the temperature dependence of mercury vapor.  I also know that
neon-xenon has been used in fluorescent glow lamps.

  Back to this technology:  The large number of glow lamps and associated
phosphor dots are deployed in a common envelope, so there are not millions
of individual bulbs.

  This is what is used in plasma TV sets.


Quote from http://en.wikipedia.org/wiki/Plasma_display#
How_plasma_displays_work
:

"Plasma panels use pulse-width modulation to control brightness"

This is different from the hypothetical display I was discussing in
which the intensity of light emitted from a subpixel is determined by
the wattage of electricity applied to that subpixel.

  So, then you are talking about desire for an analog plasma monitor.  A
plasma monitor will work whether output from each subpixel is varied by
varying the glow current or the duty cycle.

On May 24, 1:24 pm, d...@manx.misty.com (Don Klipstein) wrote:

  So, then you are talking about desire for an analog plasma monitor.  A
plasma monitor will work whether output from each subpixel is varied by
varying the glow current or the duty cycle.

What is "glow current"? I did a google search but didn't see any clear
definition.

In <48e6c370-b06f-4b40-bfb8-fc9d4e5d3...@a16g2000prg.googlegroups.com>,

GreenXenon wrote:

On May 24, 1:24 pm, d...@manx.misty.com (Don Klipstein) wrote:

  So, then you are talking about desire for an analog plasma monitor..  A
plasma monitor will work whether output from each subpixel is varied by
varying the glow current or the duty cycle.

What is "glow current"? I did a google search but didn't see any clear
definition.

  Maybe I could have said it better as the amount of current sent through
the glow discharge in the subpixel.

On May 24, 4:33 pm, d...@manx.misty.com (Don Klipstein) wrote:

In <48e6c370-b06f-4b40-bfb8-fc9d4e5d3...@a16g2000prg.googlegroups.com>,

GreenXenon wrote:

On May 24, 1:24 pm, d...@manx.misty.com (Don Klipstein) wrote:

  So, then you are talking about desire for an analog plasma monitor.  A
plasma monitor will work whether output from each subpixel is varied by
varying the glow current or the duty cycle.

What is "glow current"? I did a google search but didn't see any clear
definition.

  Maybe I could have said it better as the amount of current sent through
the glow discharge in the subpixel.

Does this mean a stronger current will cause the subpixel to emit a
more-intense light than a weaker current?

In <fcc7cf82-c040-47a8-a5fa-7e8ec2cf8...@y6g2000pra.googlegroups.com>,



GreenXenon wrote:
On May 24, 4:33 pm, d...@manx.misty.com (Don Klipstein) wrote:

In <48e6c370-b06f-4b40-bfb8-fc9d4e5d3...@a16g2000prg.googlegroups.com>,

GreenXenon wrote:

On May 24, 1:24 pm, d...@manx.misty.com (Don Klipstein) wrote:

  So, then you are talking about desire for an analog plasma monitor.  A
plasma monitor will work whether output from each subpixel is varied by
varying the glow current or the duty cycle.

What is "glow current"? I did a google search but didn't see any clear
definition.

  Maybe I could have said it better as the amount of current sent through
the glow discharge in the subpixel.

Does this mean a stronger current will cause the subpixel to emit a
more-intense light than a weaker current?

  Yes, that is true.  That is true even in the case of the so-far-practiced
"single bulb enlosed array units" used in plasma TV sets.

 - Don Klipstein (d...@misty.com)

What happens if one attempts to force a subpixel to emit an intensity
of light far greater what the subpixel is capable of?

In <c8e1678f-4b0c-473b-b0ec-16ded0d74b1e_at_a27g2000prj.googlegroups.com>,
GreenXenon wrote:

SNIP to here to edit for space

What happens if one attempts to force a subpixel to emit an intensity
of light far greater what the subpixel is capable of?

I would guess the same thing as with a neon glow lamp. The result is an
excessiverate of sputtering of the cathode material. Sputtering is
dislodgement of cathode material atoms by positive ions. The result
resembles evaporation. It gets much worse when "abnormal glow" occurs.
"Abnormal glow" is glow discharge with above-normal voltage drop in the
cathode layers of the glow due to current density exceeding a natural
current density of the cathode layers of the glow discharge.

It appears to me that sputtered cathode material would darken the
subpixel and possibly darken adjacent subpixels.

LOL!!! That's the best load of bollocks I've read in a long time.

LOL!!! That's the best load of bollocks I've read in a long time.

Cheers,
Pete.

On Fri, 28 May 2010, Don Klipstein wrote:

In <c8e1678f-4b0c-473b-b0ec-16ded0d74b1e_at_a27g2000prj.googlegroups.com>,
GreenXenon wrote:

SNIP to here to edit for space

What happens if one attempts to force a subpixel to emit an intensity
of light far greater what the subpixel is capable of?

I would guess the same thing as with a neon glow lamp. The result is an
excessiverate of sputtering of the cathode material. Sputtering is
dislodgement of cathode material atoms by positive ions. The result
resembles evaporation. It gets much worse when "abnormal glow" occurs.
"Abnormal glow" is glow discharge with above-normal voltage drop in the
cathode layers of the glow due to current density exceeding a natural
current density of the cathode layers of the glow discharge.

It appears to me that sputtered cathode material would darken the
subpixel and possibly darken adjacent subpixels.

LOL!!! That's the best load of bollocks I've read in a long time.