DealExtreme 3.5" screen review --

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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hailrazer
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DealExtreme 3.5" screen review --

Post by hailrazer » Thu Oct 22, 2009 12:55 pm

This is the other one they carry for $50 shipped :
http://www.dealextreme.com/details.dx/sku.20415" onclick="window.open(this.href);return false;

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Overall I am pretty impressed with it. The resolution is nice , same as the Psone screen. And brightness levels are just about perfect.

I have run it off of 4.5v just fine , so that is a major plus.
Also at 7.5v it draws around 90mA... :shock:

It is a very small monitor measuring 2.5" x 3.0" x 3/8" This is the overall dimensions for the screen and board together.

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A pic of the screen together with the board

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This screen is sorta neat in that it gives you an ffc extension. So technically you could move the screeen a good 5"-6" from the board.

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And here is a pic of how it looks :

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Pros:
1.The resolution is the same as the Psone screen which looks good.
2. Very small board and screen combo, less than 3/8" thich together.
3. Runs off Voltages as low as 4.5v and only 90mA.
4. Has an ffc extension included for an option of moving the lcd farther fron the board.

Cons:
1.No brightness or contrast control.
2.No audio.

Not bad for a 3.5" screen for $50
My Portable Systems:
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-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance

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Klaymator14
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Re: DealExtreme 3.5" screen review --

Post by Klaymator14 » Thu Oct 22, 2009 1:19 pm

Wow! What a great screen! Will definitely look into using that for my next portable :)

-Blayke :D
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Erlex
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Re: DealExtreme 3.5" screen review --

Post by Erlex » Thu Oct 22, 2009 1:23 pm

Wow 90mA? Are you sure? Is that with the stock back light and no other modifications?

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hailrazer
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Re: DealExtreme 3.5" screen review --

Post by hailrazer » Thu Oct 22, 2009 1:45 pm

Erlex wrote:Wow 90mA? Are you sure? Is that with the stock back light and no other modifications?
I have checked it 5 times. Checked it with my amp meter.

At 4.5v it draws around 122mA
At 7.5v it draws around 88mA
At 12 v it draws around 71mA

This is with stock everything. I'm pretty sure it uses led backlighting.
My Portable Systems:
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-----Genimini---------Darth64---------Dreamtrooper--------Ncube---------Kamikazi64---N64Boy Advance

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Re: DealExtreme 3.5" screen review --

Post by Erlex » Thu Oct 22, 2009 2:01 pm

Wow that's impressive!

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mako321
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Re: DealExtreme 3.5" screen review --

Post by mako321 » Fri Oct 23, 2009 6:18 pm

just a question though: what video inputs does it have?

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hailrazer
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Re: DealExtreme 3.5" screen review --

Post by hailrazer » Fri Oct 23, 2009 6:29 pm

mako321 wrote:just a question though: what video inputs does it have?
Composite.
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Re: DealExtreme 3.5" screen review --

Post by sam_thornley » Sat Oct 24, 2009 6:17 am

Nice screen, picture looks great. :D Would anyone know if there is a PAL version available?

You could probably adjust the contrast by looking at the datasheet for the controller chip (if there is one), as it looks like it is pre-set with resistors. Also its likely that the chip has RGB inputs. Just a thought.
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Tchay
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Re: DealExtreme 3.5" screen review --

Post by Tchay » Mon Oct 26, 2009 11:10 am

hailrazer wrote: 2.No audio.
Is there any possible way to get audio separate from the screen? (I know, its a little noobish of me)
Image Image

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Re: DealExtreme 3.5" screen review --

Post by J.D » Mon Oct 26, 2009 12:16 pm

Tchay wrote:
hailrazer wrote: 2.No audio.
Is there any possible way to get audio separate from the screen? (I know, its a little noobish of me)
Make an audio amp or something like that. Wire the audio to some sort of amp, and wire that onto a speaker.

I don't know the specifics, I'd ask an experienced portablizer.

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Zeturi
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Re: DealExtreme 3.5" screen review --

Post by Zeturi » Thu Nov 05, 2009 4:38 pm

Tchay wrote:
hailrazer wrote: 2.No audio.
Is there any possible way to get audio separate from the screen? (I know, its a little noobish of me)
Yep, just wire up an easy audio amp like a LM386. Also, hip gear screens (those controllers with screens attached) come with pretty good audio amps.
If you're getting 404'd when trying to use the links in stickies, try this tutorial to find that juicy info.

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Re: DealExtreme 3.5" screen review --

Post by darkflame » Sun Nov 08, 2009 1:59 am

Would this screen work as well:
http://cgi.ebay.co.uk/2-AV-Input-3-5-Re ... 399wt_1008

I am new to console hacking and want to make a NOAC portable from the Super Joy II famiclone.

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Re: DealExtreme 3.5" screen review --

Post by joeyjoe9876 » Sun Nov 08, 2009 2:11 am

Yeah that screen will work but you may have to build an audio amp because it has no amp built in.
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N64p Coming Soon :D

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Re: DealExtreme 3.5" screen review --

Post by spencattack » Tue Dec 01, 2009 2:17 am

Also, you can buy pre-made audio amplifier modules. Check out:

http://www.electronics123.com/s.nl/sc.8/category.33/.f

Great selection of mono and stereo varities for under $20 shipped :D
I'm sure it's cheaper to build one yourself but I lack the patience for that...

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Re: DealExtreme 3.5" screen review --

Post by Rekarp » Tue Dec 01, 2009 12:35 pm

Good deal hailrazer. Ordered a couple.
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