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   DatahopaForumComputer RelatedPC Hardwarecheep 7" display needed

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cheep 7" display needed
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Offline sybershot Topic starter
United States WWW Posts: 1635
Rank: Certified

cheep 7" display needed


I'm looking for a 7" monitor for under $40 USD to connect to my computer via usb or through my available display port on my gpu, which ever way providing it will not interrupt my current 3x monitor resolution.
I want to use this monitor to display Trinity's avatar or full ultra Hal program on the front of my custom pc case. eventually mounting a water filled globe with a flat surface to the screen for a snow globe effect

Please can you guys help me find one, did I say please  Grin

I was able to find 3.5" ones like this in the link below with rca jacks, but unsure if they would work plus I would really prefer a 7" display.
http://www.newegg.com/Product/Product.aspx?Item=9SIA0U00890442


Posted March 22, 2013, 01:39:46 AM Logged

Offline Snowcrash
England Global Moderator
Posts: 2241
Rank: Certified

Re: cheep 7" display needed


Found this site. http://www.geekstuff4u.com/computers/peripherals/secondary-screen.html

The cheapest Samsung one is out of stock though. That size of screen is more the car market, hence the RCA plugs. But there are USB devices as well.

Posted March 22, 2013, 07:09:23 AM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson

Offline sybershot Topic starter
United States WWW Posts: 1635
Rank: Certified

Re: cheep 7" display needed

Posted March 22, 2013, 08:17:36 AM Logged

Offline Diesel
England Posts: 901
Rank: Baron

Re: cheep 7" display needed


I'm with Snowy here Syber, that size screen is likely to be available to the Auto-motive market and given the budget your on, maybe you should look toward the used market.  scratch-head

Posted March 22, 2013, 10:06:11 AM Logged
It WILL be fine !...

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Re: cheep 7" display needed

Posted March 22, 2013, 11:11:38 AM Logged

Offline sybershot Topic starter
United States WWW Posts: 1635
Rank: Certified

Re: cheep 7" display needed


The screens are usually for the car market, and prices I've seen seem to go from mild to wild  Tongue

@Data: Thanks for the links, I was thinking of using one of these adapters which is an av to vga
http://www.rakuten.com/prod/pc-computer-vga-to-tv-s-video-3-rca-av-adapter-cable/219946686.html?listingId=132699671
and then maybe vga to display port
https://www.google.com/shopping/product/4217500700367168320?q=vga%20to%20displayport%20adapter&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&bav=on.2,or.r_qf.&bvm=bv.44158598,d.aWc&biw=1654&bih=891&sa=X&ei=mVxMUbLVDavYyAGh4IHwCA&ved=0CHoQ8wIwAA

only problem is I'm not sure if the small resolution on these small screens would alter my other screens resolution or even if the idea would work with a pc seeing the screens are made for video not pc  scratch-head
Though I really don't think it matters, though I could be wrong

Posted March 22, 2013, 13:34:49 PM Logged

Offline Snowcrash
England Global Moderator
Posts: 2241
Rank: Certified

Re: cheep 7" display needed


I've noticed the cheap ones not only have poor res they're also slow response and poor contrast ratio.

I've typically seen 50ms response (state of the art is 1-2ms, 5ms is fine) and 100:1 (1,000,000:1 is top, 10,000:1 is ok).

The slow response will cause a 'motion blur' type effect esp when graphics move quickly. The ratio will give poor colours and black contrast, they also often have poor viewing angles and the colours change as your angle changes.

Do your homework before buying.

Posted March 22, 2013, 17:39:38 PM Logged
“I cannot remember the books I've read any more than the meals I have eaten; even so, they have made me.”

Ralph Waldo Emerson

Offline sybershot Topic starter
United States WWW Posts: 1635
Rank: Certified

Re: cheep 7" display needed


Good eye Snowcrash  thumbsup thumbsup
I was not even thinking to look at specs for I was caught up in prices.

Do you guys think I would need a monitor with good specs for my needs? I want to replicate this orb in the video below


if a monitor with good specs are needed, I will have to start saving up some pennies.

Posted March 22, 2013, 18:38:51 PM Logged

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United Kingdom Administrator
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Re: cheep 7" display needed


I can't help but think if you can get it going for very few $$$ on a lower quality screen its probably worth a shot. the slower response time might even add something to the overall effect. If its no good at least you haven't wasted to much cash.

Posted March 22, 2013, 18:46:27 PM Logged
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