Tiny PAL LCD for A500

Photon · 26 November 2006, 16:15

Hi! Saw the other thread but a big one with flickerfixer etc isn't for me.

I was planning to use a tiny LCD for my A500, 9" or less.

- The picture should be "at least as good as 640x256 on a small TV looks".

- It should run off "SCART" type RGB so I can make a simple adapter between the screen and the video connector on the A500. (Edit: or at least video)

- It shouldn't be super-slow (1/50s response time is asking too much, but the zippier the better).

- The smaller the better (4-5"?)

- Not crappy color depth. 18-bit is more than enough though.

- Able to run off the A500 PSU. (A500, 1/2M slow, extra drive, that's it)

I saw some of those screens for the back of the headrests in a car, are any of those good?

alexh · 26 November 2006, 17:03

The cheapest solution would be an LCD intended for the XBOX or PS1.

Photon · 27 November 2006, 01:04

Well, they certainly seem cheap on eBay. Could have picked one of for a dollar if only the maddafakkas would sell outside the us!

They all seem to have "mounts" though, and they have an elliptical outline (ugh!). Any rectangular ones with just the video connectors?

Chain · 27 November 2006, 09:24

http://cgi.ebay.com/VOYAGER-5-5-COLO...QQcmdZViewItem

how about this?

Photon · 10 December 2006, 04:16

Thanks Chain!

Only someone nicked it, and the other one from the same seller has scratches on the screen.

btw any special reason ebay.co.uk is Always twice as dear?? bah.

alexh · 10 December 2006, 12:14

To quote Fred the Duck

"It's because our Whores are 2x as expensive".

Photon · 10 December 2006, 14:48

Looked around a bit and I think I'm gonna go for an Xbox screen. Will it work with the Amiga resolution? i.e. PAL 320x256?

alexh · 10 December 2006, 15:51

Not too sure. PS1 will definately work, but the XBOX normal operating res is interlaced.

I would imagine it would work as XBOX can (but doesnt) do non-interlaced.

Jope · 10 December 2006, 16:45

BTW, some PSone TFTs only do composite.. The original Sony branded ones are known to do RGB.

Photon · 10 December 2006, 22:12

OK, I think I'll wait for a better PS1 screen, since there could be an interlace issue with the XBOX ones? Would rather like the Amiga to do the flickering only if I select 640x512

alexh · 11 December 2006, 10:14

Quote:

Originally Posted by Photon

Would rather like the Amiga to do the flickering only if I select 640x512

Eh? What are you talking about? There would be no flicker with an LCD. There is no concept of interlaced with LCD's. However there has to be special electronics to handle it.

Either it would work in non interlaced or you would have a blank screen.

I am 90% sure it would just work.

It is more likely that PS1 LCD screens CANNOT do interlaced screens than XBOX ones cannot do non-interlaced. The PS1 could never do interlaced modes and so why include the extra electronics to handle it.

musashi5150 · 11 December 2006, 12:07

Quote:

Originally Posted by alexh

The PS1 could never do interlaced modes and so why include the extra electronics to handle it.

PSX is capable of interlace... I just think nobody used it. I have the option of interlaced display modes with my dev kit.

alexh · 11 December 2006, 13:00

If it were true I feel that people would have done intro screens in interlace to get high res.

There must be a limitation which makes it impractical.

musashi5150 · 11 December 2006, 13:50

Indeed, I think it only works correctly if your code runs in 1 frame. But of course with Photon being an oldskool coder he's only interested in 320x256 and 640x256 (for workbench) anyway

Photon · 12 December 2006, 01:05

Yeah, pretty much. Since I have a home computer collection it would be handy to test stuff, or to bring one up for a nostalgia session.

26 November 2006, 16:15	#1
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	Tiny PAL LCD for A500 Hi! Saw the other thread but a big one with flickerfixer etc isn't for me. I was planning to use a tiny LCD for my A500, 9" or less. - The picture should be "at least as good as 640x256 on a small TV looks". - It should run off "SCART" type RGB so I can make a simple adapter between the screen and the video connector on the A500. (Edit: or at least video) - It shouldn't be super-slow (1/50s response time is asking too much, but the zippier the better). - The smaller the better (4-5"?) - Not crappy color depth. 18-bit is more than enough though. - Able to run off the A500 PSU. (A500, 1/2M slow, extra drive, that's it) I saw some of those screens for the back of the headrests in a car, are any of those good? Last edited by Photon; 26 November 2006 at 18:42.

10 December 2006, 14:48	#7
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	Looked around a bit and I think I'm gonna go for an Xbox screen. Will it work with the Amiga resolution? i.e. PAL 320x256? Last edited by Photon; 10 December 2006 at 15:12.

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26 November 2006, 17:03	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	The cheapest solution would be an LCD intended for the XBOX or PS1.

27 November 2006, 01:04	#3
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	Well, they certainly seem cheap on eBay. Could have picked one of for a dollar if only the maddafakkas would sell outside the us! They all seem to have "mounts" though, and they have an elliptical outline (ugh!). Any rectangular ones with just the video connectors?

27 November 2006, 09:24	#4
Chain A-Collector, repairments Join Date: Jul 2001 Location: Czech Rep. Age: 50 Posts: 1,536	http://cgi.ebay.com/VOYAGER-5-5-COLO...QQcmdZViewItem how about this?

10 December 2006, 04:16	#5
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	Thanks Chain! Only someone nicked it, and the other one from the same seller has scratches on the screen. btw any special reason ebay.co.uk is Always twice as dear?? bah.

10 December 2006, 12:14	#6
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	To quote Fred the Duck "It's because our Whores are 2x as expensive".

10 December 2006, 15:51	#8
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	Not too sure. PS1 will definately work, but the XBOX normal operating res is interlaced. I would imagine it would work as XBOX can (but doesnt) do non-interlaced.

10 December 2006, 16:45	#9
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	BTW, some PSone TFTs only do composite.. The original Sony branded ones are known to do RGB.

10 December 2006, 22:12	#10
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	OK, I think I'll wait for a better PS1 screen, since there could be an interlace issue with the XBOX ones? Would rather like the Amiga to do the flickering only if I select 640x512

11 December 2006, 13:00	#13
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	If it were true I feel that people would have done intro screens in interlace to get high res. There must be a limitation which makes it impractical.

11 December 2006, 13:50	#14
musashi5150 move.w #$4489,$dff07e Join Date: Sep 2005 Location: Norfolk, UK Age: 42 Posts: 2,351	Indeed, I think it only works correctly if your code runs in 1 frame. But of course with Photon being an oldskool coder he's only interested in 320x256 and 640x256 (for workbench) anyway

12 December 2006, 01:05	#15
Photon Moderator Join Date: Nov 2004 Location: Eksjö / Sweden Posts: 5,602	Yeah, pretty much. Since I have a home computer collection it would be handy to test stuff, or to bring one up for a nostalgia session.

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