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Thread: Disassemble a Dell Venue 8 Pro to harvest it's 8" Capacitive Screen?

  1. #1
    Maximum Bitrate rray's Avatar
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    Disassemble a Dell Venue 8 Pro to harvest it's 8" Capacitive Screen?

    We all know how difficult it is to find a bright open frame high resolution capacitive touchscreen monitor for a carpc.

    I have been thinking of buying a sacrificial Dell Venue 8 Pro for it's 8" Capacitive Screen. They have an 8.0 inch IPS Display with HD (WXGA 1280 x 800) resolution with 10-pt capacitive touch, and obviously are window 8.1 compatible, but everything is all on a tiny single motherboard.

    Motherboard Pic

    Would like to find a Chinatobby type screen driver and USB touchscreen interface for this device.

    Half Empty Naysayers aside, I wonder what Half Full members think about feasibility of such a project?

    These tablets can be found for $200 used, which is what we pay for a touchscreen alone, and are bright and readable. They will be showing up in droves on ebay after the holidays when gift recipients discover Windows based tablets suck to type on.

  2. #2
    Variable Bitrate camo.b's Avatar
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    http://www.parts-people.com/index.ph...=item&id=14997 seems to be the right lcd/touchscreen
    Fire off a email to kevin from chinatobby see what he knows.The board we both have is lvds and ttl (flat flexi cable with lock clip).i just watched a teardown of that model...seems to have what looks like a ttl connection on the first one he disconnects could be the second one to as ive seen those dual cables also...im sure they are still ttl.... the third looks small,one could hope its the touch interface cable and just usb.....touch interface i believe is just i2c or usb...if it is i2c,usb adapters are available..if usb well just drivers are needed...im sure dell has them...your jetway board might have some useable pins on it to as windows supports the i2c interface http://en.m.wikipedia.org/wiki/I2c

    .need a part number for the lcd i suppose before you contact kevin...last boards i got from him he modded a bit to suit me....seemed happy to do so

  3. #3
    Maximum Bitrate rray's Avatar
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    I did not realize you can buy just the screen and touchpanel part. Great find!

    In itself, there are some nice screens available from Chinatobby, but they don't offer the Capacitive Touch panel. Nobody seems to offer them in the 8 inch size, what I want for my car.

    The resistive panels work just fine, but are somewhat opaque and wash out too easy in daylight. The capacitive panels transmit more light and I like the shiny surface better because it don't wash out until the sun hits it just right, so moving your head just a bit and you can read the screen again.

    The Dell screen is supposed to be 377 LUX with the auto brightness turned off, which makes it one of the brighter 8" screens. Now to find the part number...

  4. #4
    Variable Bitrate camo.b's Avatar
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    I did notice in my search for a 8"panal that most had a low lux/nit rating must say my 10.1 is rated at 360 and could be brighter but overall its so much nicer....just keep the screen wipes in the car.

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    Variable Bitrate camo.b's Avatar
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    I wonder if the small connector is the webcam....

  6. #6
    Maximum Bitrate rray's Avatar
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    I wish I could fit a 10" screen, but it's just a bit wider than my dash opening without irreversable modifications, and being an 2SS, matching replacement dash parts are not available unless they show up at the junkyard. I have to make all my mods fit in either after market or generic Camaro dash components. I measured a 9" Chinatobby screen that I might be able to fit, but resolution and brightness is lower than an 8" screen, with the 7" screens being the brightest of these sizes.

    So far, this Dell unit has the best 8" capacitive screen I have seen, for reasonable cost. The problem is most automotive use screens are 7" not 8".

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    The link in the 2nd post lists the Dell part# for the screen. Five digit alpha-numeric part # indicates a "warranty" part number at Dell. In this case, it's dp/n: MF47K.
    Here is the screen for $75 but out of stock:
    https://www.laptopscreen.com/English/model/Dell/MF47K/

    What about the Dell Venue 8 Android? It's $179 brand new:
    http://www.dell.com/us/p/dell-venue-8/pd

    Which means you can find it used for much less.
    Harvest the screen and then flip the remainder on eBay as parts-only.

    I'm looking at this idea now. Thinking about detaching the screen and extending the cables, then putting the carcus under a seat until I can afford a nice CarPC. I'll only ever want Android though. Since I have Android phones, it would make things easy for me. Plus I already paid for lots of nice $ apps on the Play Store that I could probably use on both.

  8. #8
    Variable Bitrate camo.b's Avatar
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    I would make it easy on myself and use the windows dell as the multitouch drivers for the screen would be downloadable straight from dell.

  9. #9
    Maximum Bitrate rray's Avatar
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    I second the Dell Multitouch drivers as being the driving force for windows based applications. So far multitouch capacitive has been the holy grail for windows based carpc's, and few have achieved it, with those closer having 2 finger capacitive touch.

  10. #10
    Variable Bitrate camo.b's Avatar
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    I keep thinking about this idea...that dell is selling down here at about the $300 mark...if i could spend the cash without the wife noticing (house finance deposit almost saved) i would grab one...any other keen members?

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