Fixing a Faint Scratch in CRT Monitor

[Pspboy17]

I bought a used Dell Trinitron P780 to accompany my other Dell Trinitron P780 for dual monitors, but the new one has a very faint scratch in the middle of the screen. I've heard using superglue, Vaseline, epoxy, headlight restorer, etc. Has anyone successfully removed a scratch in a CRT monitor?

[ComradeSniper]

Forgive me for asking, but why exactly are you using a CRT monitor?

[balanar]

Forgive me for asking, but why exactly are you using a CRT monitor?

This is only a guess but I would think its for the high refresh rates of CRT monitors.

[stancato9]

I've tried rubbing an eraser along the scratch on smartphone screens and it appears to help buff the glass.

[tp4tissue]

I bought a used Dell Trinitron P780 to accompany my other Dell Trinitron P780 for dual monitors, but the new one has a very faint scratch in the middle of the screen. I've heard using superglue, Vaseline, epoxy, headlight restorer, etc. Has anyone successfully removed a scratch in a CRT monitor?

Pretty sure it has an antiglare coating.. and "that" is what has been scratched..  Not sure.. but if this is the case.. it can not be fixed..

You can either "remove the coating completely", or just live with it.

[terran5992]

I bought a used Dell Trinitron P780 to accompany my other Dell Trinitron P780 for dual monitors, but the new one has a very faint scratch in the middle of the screen. I've heard using superglue, Vaseline, epoxy, headlight restorer, etc. Has anyone successfully removed a scratch in a CRT monitor?

Pretty sure it has an antiglare coating.. and "that" is what has been scratched..  Not sure.. but if this is the case.. it can not be fixed..

You can either "remove the coating completely", or just live with it.

Or you know . Throw it out the window and the get a new monitor

[Pspboy17]

I use crt's because I play games at a variety of resolutions and refresh rates upwards of 100hz. I had an LCD briefly, but I got rid of it because it made all motion turn blurry, native res was too high, and it couldn't do 100 hz.

[tp4tissue]

I use crt's because I play games at a variety of resolutions and refresh rates upwards of 100hz. I had an LCD briefly, but I got rid of it because it made all motion turn blurry, native res was too high, and it couldn't do 100 hz.

Um.... the refresh rate has nothing to do with why gaming on CRT is better.

It has to do with response time and V-blanking.

The reason CRT does not blur is because the gun hits a phosphorous layer on the panel and the cell immediately decays, releasing photons.

On an LCD there is a transition that takes a much longer time than phosphorous decay, because you see this transition.. it creates an "afterimage" effect and in scrolling images, looks like bluring.

They've actually fixed this problem now with Lightboosted monitors. which are ON PAR with CRT in terms of almost imperceptible motion blur.


In terms of response time.

The fastest LCD is in totality 1 frame behind a CRT.. which isn't a huge deal..

[tp4tissue]

That said..  I'm not sure why you'd continue to game on a 17" trinitron..

Yea trinitron is great, but 17" means you have sit really close to the screen and that's a bit uncomfortable..

Lightboosted LCD is the way to go if you had to buy something "TODAY"..

If you can find a larger crt, it's still worth playing.. but 17"... too small.

[berserkfan]

You live in Singapore and you recommend that people throw things out of the window?

 

I bought a used Dell Trinitron P780 to accompany my other Dell Trinitron P780 for dual monitors, but the new one has a very faint scratch in the middle of the screen. I've heard using superglue, Vaseline, epoxy, headlight restorer, etc. Has anyone successfully removed a scratch in a CRT monitor?

Pretty sure it has an antiglare coating.. and "that" is what has been scratched..  Not sure.. but if this is the case.. it can not be fixed..

You can either "remove the coating completely", or just live with it.

Or you know . Throw it out the window and the get a new monitor

[terran5992]

You live in Singapore and you recommend that people throw things out of the window?

 

I bought a used Dell Trinitron P780 to accompany my other Dell Trinitron P780 for dual monitors, but the new one has a very faint scratch in the middle of the screen. I've heard using superglue, Vaseline, epoxy, headlight restorer, etc. Has anyone successfully removed a scratch in a CRT monitor?

Pretty sure it has an antiglare coating.. and "that" is what has been scratched..  Not sure.. but if this is the case.. it can not be fixed..

You can either "remove the coating completely", or just live with it.

Or you know . Throw it out the window and the get a new monitor

Yep throw it off the top floor of hdb block

[Oobly]

That said..  I'm not sure why you'd continue to game on a 17" trinitron..

Yea trinitron is great, but 17" means you have sit really close to the screen and that's a bit uncomfortable..

Lightboosted LCD is the way to go if you had to buy something "TODAY"..

If you can find a larger crt, it's still worth playing.. but 17"... too small.

http://www.blurbusters.com/confirmed-nvidia-g-sync-includes-a-strobe-backlight-upgrade/

G-Sync + Lightboost = droool.... want that!   

[Melvang]

the last time I had motion blur was 7 years ago when I had my 7800 GTX hooked up to a new ish at the time Westinghouse LCD tv with a 25 foot long component video as that was the only way I had to hook it up.  motion blur was obscene.  but this wasn't due to the LCD panel (no blur on DVD's)  was due to the 25 foot long cable.

[Wildcard]

I hate to admit it, but I have kept a few of my "good" CRT flat panel displays. No idea why, but they're just sitting on a shelf collecting dust.

[osi]

Step 1 - Throw CRT in the trash (Trinitrons are heavy too)
Step 2 - Buy 120hz flat panel??

Win???   

[tipo33]

CRT's also have AMAZING contrast ratios, excellent colour, and wide colour gamut.  I still keep a CRT for these reasons,  I use a LCD day to day, but I pull my CRT out from time to time to play emulators.

[paicrai]

I think you're pretty screwed on this, assuming the most likely being a scratch in the coating. The best you could do would be to get another one if it's not that much of a special monitor, or just remove the entire coating if you'd want to go that far.

[tp4tissue]

I think you're pretty screwed on this, assuming the most likely being a scratch in the coating. The best you could do would be to get another one if it's not that much of a special monitor, or just remove the entire coating if you'd want to go that far.

nawh dude.. He can remove the coating.. it's just a plastic sheet with glue..

You take the back housing off...

And then the front.. use a blow dryer, and you can start peeling off the plastic sheet..

THEN, you need something like goo-gone spray to get the glue off. it's on there pretty good..


The panel will be significantly brighter, so you gotta tune the brightness and such differently.

[taylordcraig]

Uhhh. Everyone dissing CRTS can go read a book about monitors.
Modern IPS panels are just getting to the lifelike color gamuts of crts. Truly though, not even close with such slow response times.

[tp4tissue]

Uhhh. Everyone dissing CRTS can go read a book about monitors.
Modern IPS panels are just getting to the lifelike color gamuts of crts. Truly though, not even close with such slow response times.

Um..... Generally IPS has better color these days..  as far as response times, crt still wins at 1ms..

[taylordcraig]

8 bit srgb gamuts were on old crts. only extended gamut ips would beat them.
and yup, dat refresh rate on crts.

i just got a u2312 hm because I hate giant old boxes and needed the cheapest acceptable alternative. [acceptable by my standards]

[tp4tissue]

8 bit srgb gamuts were on old crts. only extended gamut ips would beat them.
and yup, dat refresh rate on crts.

i just got a u2312 hm because I hate giant old boxes and needed the cheapest acceptable alternative. [acceptable by my standards]

i feel like the ONLY real replacement for crt right now is lightboost..

without lightboost, you just don't get the motion clarity..

Even with lightboost, it's not quite as fast as crt.

[terran5992]

8 bit srgb gamuts were on old crts. only extended gamut ips would beat them.
and yup, dat refresh rate on crts.

i just got a u2312 hm because I hate giant old boxes and needed the cheapest acceptable alternative. [acceptable by my standards]

i feel like the ONLY real replacement for crt right now is lightboost..

without lightboost, you just don't get the motion clarity..

Even with lightboost, it's not quite as fast as crt.

Is it a noticeable difference? Between lightboost and non-lightboost monitors?

[tp4tissue]

8 bit srgb gamuts were on old crts. only extended gamut ips would beat them.
and yup, dat refresh rate on crts.

i just got a u2312 hm because I hate giant old boxes and needed the cheapest acceptable alternative. [acceptable by my standards]

i feel like the ONLY real replacement for crt right now is lightboost..

without lightboost, you just don't get the motion clarity..

Even with lightboost, it's not quite as fast as crt.

Is it a noticeable difference? Between lightboost and non-lightboost monitors?

In terms of "motion clarity", the difference is night and day... between lightboost and non-lightboost

for still images.. no difference.. from regular lcd panel

____regular LCD technically produce better stills vs CRT and Lightboosted LCD.. because it has no flicker

____Lightboosted LCD technically HAS flicker because it's flashing the backlight, but @ 120hz it is well beyond what most people can perceive..
_______on CRT, you need 90hz+ to completely not see flicker, I can see bit of flicker all the way up to 87hz.  It's possible there are people who can see even faster flicker than 90hz..



for input response time...video card to image drawn on screen.. light boost has no difference.. from regular lcd panel

____vs crt,   crt is 10x faster in terms of input response of the Fastest LCD.

___ This is why purists continue to game on CRT... ALTHOUGH.... the advantage of which is not huge in terms of performance..   

___  Visually.. CRT gaming is still more appealing because it feels instantaneous and ice-like.. whereas LCD feels a bit like  wait-and-drag..

[Findecanor]

I think that either you buff it out, very carefully, using superfine polishing compound. Every sanding or buffing will cause scratches, but if the compound is fine enough and you take proper care the scratches left would be microscopic.
One thing to look out for when sanding and buffing is to make sure that no larger particles from the previous (grain) step is left on the surface when you sand/buff at a finer grain because then they will only be nudged around - scratching the surface visibly.

The other method would be to fill the scratch with a compound that has a similar refractive index to the glass surface. I have heard about people using Future Floor Polish to fill scratches on plastics, but I don't know how it would work on the glass of the CRT.

Yea trinitron is great, but 17" means you have sit really close to the screen and that's a bit uncomfortable.

I assume that the new screen is the second in a multi-head setup.
Two 4:3 screens at 17" has the same screen height as one 16:9 monitor at 21" and is 50% wider.

[tp4tissue]

I think that either you buff it out, very carefully, using superfine polishing compound. Every sanding or buffing will cause scratches, but if the compound is fine enough and you take proper care the scratches left would be microscopic.
One thing to look out for when sanding and buffing is to make sure that no larger particles from the previous (grain) step is left on the surface when you sand/buff at a finer grain because then they will only be nudged around - scratching the surface visibly.

The other method would be to fill the scratch with a compound that has a similar refractive index to the glass surface. I have heard about people using Future Floor Polish to fill scratches on plastics, but I don't know how it would work on the glass of the CRT.

Yea trinitron is great, but 17" means you have sit really close to the screen and that's a bit uncomfortable.

I assume that the new screen is the second in a multi-head setup.
Two 4:3 screens at 17" has the same screen height as one 16:9 monitor at 21" and is 50% wider.

Do not buff it.. It'll just make the parts surrounding the scratch blurry...

Live with the scratch,, small ones are usually ok.. your brain can process it out completely..

OR

Take off the coating.

DO NOT RUB IT..