PS2 vs PSone screen

If you're making a portable you probably need something to watch it on. (Unless you want to guess what's happening in the game, but I wouldn't advise that) Anyway, this forum is your "Hacking a pocket TV/screen" one-stop solution. Share your experiences and knowledge here.

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bacteria
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PS2 vs PSone screen

Post by bacteria »

I recently bought a PS2 Joytech 8" screen.

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It doesn't seem to have the clarity that the PSone screen does, interestingly. Nice sized screen though.

My understanding is that the PSone screen is 320 x 240, although it claims to double this via interpolation (?); can't find the native resolution of the PS2 screen. Anyone know it, or any thoughts??

Why is the definition of the PS2 screen not as good as for the PSone screen (eg text)? I got it to make a dedicated GameCube portable at some point.
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tom61
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Post by tom61 »

It's probably of lower picture quality due to lower build quality. Some of the third party screens have horrible uber-cheap LCDs, so they suck even if they have as good of resolution as the Sony PSOne LCD.

There's also a minor subjective quality loss when you go to a larger screen with the same res. Larger screen with the same res mean that the DPI is lower.
bicostp
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Post by bicostp »

It looks like a wide screen. I sit stretching the 4:3 picture or letterboxing it?

Funny, I always thought the PSone screen was 640x480. :?
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Post by hailrazer »

bicostp wrote:It looks like a wide screen. I sit stretching the 4:3 picture or letterboxing it?

Funny, I always thought the PSone screen was 640x480. :?
No the Psone screen as stated is 320x240 native but it can accept a 640x480 resolution and downscale it to 320x240.
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bacteria
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Post by bacteria »

bicostp wrote:It looks like a wide screen. I sit stretching the 4:3 picture or letterboxing it?
Stretches it, but it looks perfectly acceptable inspite of that - similar to the guy who used a similar shaped screen on their N64 project.
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exploding.monkey
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Post by exploding.monkey »

could i use this screen for a ps1p?
Gordon1
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Post by Gordon1 »

exploding.monkey wrote:could i use this screen for a ps1p?
No, the PS2 spits out a different kind of composite that is only accepted by this particular screen. It has something to do with the fact that the screen manufacturer contacted Sony and asked them to entirely re-work their entire PS2 board. Strangely enough Sony actually complied and all of the PS2 slims have this added feature. There is a converter box that sells for about $50 that converts the regular composite to composite-R which is the type of input this screen takes. So, it is possible to make a psonep out of these screen but the box requires about 52 watts to run (at 120vac) So, it would be pretty hard to make a portable out of this.

Also, these screens only accept +7.5v and -7.5v, which is the only kind power it will run off of. Keep in mind that this energy is only generated by the ps2 slim. Once again there is a box that spits this out and it is about $23 in China.
tom61
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Post by tom61 »

Gordon1 wrote:
exploding.monkey wrote:could i use this screen for a ps1p?
No, the PS2 spits out a different kind of composite that is only accepted by this particular screen. It has something to do with the fact that the screen manufacturer contacted Sony and asked them to entirely re-work their entire PS2 board. Strangely enough Sony actually complied and all of the PS2 slims have this added feature. There is a converter box that sells for about $50 that converts the regular composite to composite-R which is the type of input this screen takes. So, it is possible to make a psonep out of these screen but the box requires about 52 watts to run (at 120vac) So, it would be pretty hard to make a portable out of this.

Also, these screens only accept +7.5v and -7.5v, which is the only kind power it will run off of. Keep in mind that this energy is only generated by the ps2 slim. Once again there is a box that spits this out and it is about $23 in China.
Just in case anyone is wondering, Gordon1 is just BSing. Why, I don't know.
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Post by marshallh »

Haha, if that was true, then the PS2 slim wouldn't work with any TVs :)
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Gordon1
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Post by Gordon1 »

.... yeah obviously I was BSing but it was just such a stupid question I didn't even feel like dignifying it with a somewhat useful answer. Also I was kind of hoping he would reply first, just so I could get an idea of the technology illiteracy.
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Post by exploding.monkey »

jeez, i just wanted a yes or no answer. i asked cuz it wasnt on the screen list and thought it could be used just for a ps2. ive never heard of the screen before anyway.
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