LCD Monitor success!

[Matt_H]

I've just acquired a nice-'n-cheap ViewSonic VA705b. It seems to be handling Amiga screenmodes (scandoubled) quite well. Previous LCDs I've tried have cut off a lot of the screen in native modes, but this one looks like a keeper. It has some trouble on DblPAL, and Multiscan, and some of the other 31KHz native modes, but good ol' NTSC and PAL work great through my CV3D scandoubler.

I'll report back if any issues come up.

[A4000_Mad]

Congrats Matt :drink:

I just put an LCD monitor on an Amiga for the first time myself and I'm lovin it

[Alex2000]

Congrats Matt :drink:

I just put an LCD monitor on an Amiga for the first time myself and I'm lovin it

I have it since a long time on my A2000.
For me the best setup is to have an LCD/TV that always work.
Scart connected to the On-board card ECS/AGA and the VGA connected to the RTG!!!

[Franko]

I've tried a number of different LCD monitors or LCD TVs from various manufacturers in the past couple of years but always end up going back to my CRT monitors as I can't find one that doesn't suffer from motion blur when scrolling...

Even ones that claim to be 2ms response time and are supposedly not to suffer from motion blur still do. Anybody found one that does actually work without motion blur and if so what's the make/model number...

[Karlos]

@Franko

Try changing your perception; call it "movement anti-aliasing" rather than "motion blur" and consider it a feature

[Franko]

@Franko

Try changing your perception; call it "movement anti-aliasing" rather than "motion blur" and consider it a feature

You do realise what you have just done don't you Karlos...

Some advertising executive from Sony, Samsung or whichever is going to spot that comment and use it on the box to sell their flawed products under the guise of it being an extra feature...

Gawd, I'll never see an LCD monitor now without motion blur... :cry:

[Karlos]

My Iiyama ProLite has a 2ms response time and I can't say I've noticed it being particularly blurry when there's movement.

[Franko]

My Iiyama ProLite has a 2ms response time and I can't say I've noticed it being particularly blurry when there's movement.

'Particularly blurry' is a bit like saying, ok it's a 100 watt bulb but it really only gives off 60 watts, doesn't cut it with me Im afraid...

[Karlos]

'Particularly blurry' is a bit like saying, ok it's a 100 watt bulb but it really only gives off 60 watts, doesn't cut it with me Im afraid...

Are you kidding? 60W worth of visible light would be a phenomenal output for an incandescent bulb rated at 100W power consumption

[Selles]

I have an Envision EN-LM500 Professional Series flat-panel monitor attached to my Amiga 3000T. My graphics board is a GVP Spectrum and I am using the P96 driver. My settings are 640 X 400 res, 16-bit color, 60 Hertz. There is no motion blur at all. Great picture and color. The only negative thing I can say is that the picture is not as crisp and clear as a CRT monitor.
 
Make sure that you are not trying to push the monitor beyond what it can handle.  You have to remember that these old Amiga computers are not modern PCs or Macs.  So, I have found that it is best to treat them as vintage computers.  It is best to stick with the lower screen resolutions.  Never go beyond 1024 X 768, you WILL have problems if you do.  At least this has been my experiance.

[Franko]

I have an Envision EN-LM500 Professional Series flat-panel monitor attached to my Amiga 3000T. My graphics board is a GVP Spectrum and I am using the P96 driver. My settings are 640 X 400 res, 16-bit color, 60 Hertz. There is no motion blur at all. Great picture and color. The only negative thing I can say is that the picture is not as crisp and clear as a CRT monitor.
 
Make sure that you are not trying to push the monitor beyond what it can handle.  You have to remember that these old Amiga computers are not modern PCs or Macs.  So, I have found that it is best to treat them as vintage computers.  It is best to stick with the lower screen resolutions.  Never go beyond 1024 X 768, you WILL have problems if you do.  At least this has been my experiance.

I've never tried that model, need to check out the specs for it first. I never usually use a screenmode of more than 640X512 (mostly 640x256), I'll dig around and see what I can find out about, but I'd be very surprised if it has no motion blur at all, as even Panasonic with their 600Mhz TV's have had to admit that despite the latest engine they use, motion blur has not been completely eliminated yet...

[Karlos]

What about the stationary blur you get on CRTs the entire time you use them? The focussing, mask and fundamentally analogue nature are physically not capable of giving a crisp, neat, square pixel at any resolution. There's always some distortion and diffusion.

At least on LCD displays, native resolution is always pixel perfect.

[Franko]

What about the stationary blur you get on CRTs the entire time you use them? The focussing, mask and fundamentally analogue nature are physically not capable of giving a crisp, neat, square pixel at any resolution. There's always some distortion and diffusion.

At least on LCD displays, native resolution is always pixel perfect.

Stationary blur

As for the focussing if your capable and know what your doing you can easily adjust the flyback to produce a perfect clear sharp picture. Also if your willing and capable to take the time the coil on the neck of tube can be adjusted to get near perfect convergance for all three colour guns. Any convergance problems still left over can be eliminated with the use of small thin magnetic or metallic  strips you carefully place at strategic points on the actual tube itself even under the coil.

I have done this to all the monitors (and TVs)  I own and the picture quality for native resolutions is far superior to any LCD monitor I have tested and of course is free from motion blur not to mention far better contrast & brightness ratios...

My brother in law who is a fully qualified TV engineer has even borrowed some of my monitors on occasion to show his fellow engineers who have all been most surprised and even amazed at the picture quality I have achieved using the above methods. As he and his fellow engineers say "most folk wouldn't know what a good picture looked like if it came up and slapped them on the face" and they speak from years of experience in this field...

[Karlos]

Stationary blur

As for the focussing if your capable and know what your doing you can easily adjust the flyback to produce a perfect clear sharp picture.

Wrong, it is never perfect and that is the point. A pixel that exists conceptually as a discrete rectangular area within your framebuffer is mapped to a diffuse point on a screen by an analogue system that is highly susceptible to electric and magnetic fields. Everything about it, from it's position, shape, brightness and even it's colour are affected by multiple, nonlinear effects. You will never get the same combination of these effects from one day to the next. Your CRT display literally is never the same twice.


Contrast this scenario to LCD, where you have well-defined rectangular (usually square) pixels that aren't susceptible to any such effects.

Also if your willing and capable to take the time the coil on the neck of tube can be adjusted to get near perfect convergance for all three colour guns. Any convergance problems still left over can be eliminated with the use of small thin magnetic or metallic  strips you carefully place at strategic points on the actual tube itself even under the coil.

Ahem:

'Particularly blurry' is a bit like saying, ok it's a 100 watt bulb but it really only gives off 60 watts, doesn't cut it with me Im afraid...

Substitute 'particularly blurry' for 'near perfect'.

Basically, what you have described is a trial and error manipulation of the fields around your monitor. If you move your monitor, the necessary placements to counter things like the prevailing magnetic field direction all change too.

[Franko]

Wrong, it is never perfect and that is the point. A pixel that exists conceptually as a discrete rectangular area within your framebuffer is mapped to a diffuse point on a screen by an analogue system that is highly susceptible to electric and magnetic fields. Everything about it, from it's position, shape, brightness and even it's colour are affected by multiple, nonlinear effects. You will never get the same combination of these effects from one day to the next. Your CRT display literally is never the same twice.

Simple answer to that Cobblers...

Contrast this scenario to LCD, where you have well-defined rectangular (usually square) pixels that aren't susceptible to any such effects.

You forgot to mention these lovely square or rectangular pixels have a tendancy to end up stuck or dead...

Basically, what you have described is a trial and error manipulation of the fields around your monitor. If you move your monitor, the necessary placements to counter things like the prevailing magnetic field direction all change too.

I refer you to my first answer given in this post...