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Thread: capacitive touchscreen with controller

  1. #151
    Maximum Bitrate tempgp's Avatar
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    forgive me being rude and not to read all text in last few pages...

    does any one know if those capacitive screens support multitouch? I hope they do, it would be very nice to use 2 finger zoom
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  2. #152
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    Anybody having issues with erratic input? I can't figure out if it's coming from the touch controller or what but periodically I get something which looks like tons of input from either a mouse or keyboard interface in CF. I think the issue was mentioned in this thread somewhere.

  3. #153
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    Quote Originally Posted by az1324 View Post
    Anybody having issues with erratic input? I can't figure out if it's coming from the touch controller or what but periodically I get something which looks like tons of input from either a mouse or keyboard interface in CF. I think the issue was mentioned in this thread somewhere.
    No issues from mine. Works great - about 6 months
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    Dan from Minneapolis
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  4. #154
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    So i finally got the 3M 7" capacitive display w/controller and usb cable from onlinecomponents.com yesterday.Been testing it out with my cheapo lcd that i got from onvon.com a while back since i broke the touchscreen on it.Can anyone recommend a good glue to bond the 3M touchscreen to the metal frame of the LCD?Thanks.

  5. #155
    Maximum Bitrate customaudioman's Avatar
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    Quote Originally Posted by hithere View Post
    I just wanted to say to the OP and other contributors to this thread...I was able to order the materials from the listed links (I went the DIY route) and installed my touch screen and controller today. The install took me well into the night, so I haven't had a chance to gauge the performance in sunlight yet, but I'm already amazed at how much clearer and more vibrant the display looks with the new screen in place. I did this with an older zenarc 700tsv, and the display now looks like a modern LCD bought at a big box store, instead of a second-rate imitation of something meant for this task. Bolder, richer colors, deeper blacks, and more visible detail are all immediately apparent...so much so, that there are about 6 things I noticed about the skin I'm using that I never took note of before, such as the gradual shading in several areas around buttons, etc.

    The screen fit in place in the existing bezel exactly right, with only the aforementioned slight difference in thickness to contend with, as well as egress for the USB cable. I removed the old touch screen as well as the touch controller completely prior to fitting the new screen. Taking note of the advice to leave a gap between screen and touch glass, I lined the outer edge of my LCD with a layer of electrical tape, concealing the metal LCD housing and offering some lift/gap off the screen surface. I also noticed that if I oriented the screen in one direction within the zenarc bezel, the traces on the touch screen overlapped the zenarc bezel on once side, leaving about 1/4" to 1/2" of trace visible at the front...a quick flip of the touch screen 180 degrees took care of that, and the traces were concealed by the bezel on all sides.

    The only problem left at that point was egress for the USB/ribbon cable from and to the new controller, which could be problematic for some with the way the vga plug at the back of the screen is situated on the 700tsv. The existing plug for USB/VGA on the 700tsv sits exacly parallel with the ribbon cable on the new touch screen once installed, and some interesting ribbon cable origami would be involved in bypassing that particular choke point, for persons interested in maintaining their bezel's integrity as much as possible and containing the controller completely within the zenarc bezel. That isn't the route I took. My install is in an 06 Acura TL with the screen mounted in the factory nav location, per moahdhib's wonderful example. As it is equipped with an OEM metal box that's modified to contain the screen behind a factory bezel/trim piece, and the bezel of the screen is slightly dremeled out for fitment anyway, I simply placed a hole in the side of the bezel to bring the ribbon cable out the side near where it attached to the touch screen glass, wrapping it around and mounting my controller behind the unit, outside the zenarc bezel but concealed within the car's existing factory enclosure. I was careful not to stress the ribbon cable to the controller, and I also soldered a ground wire between the mounting hole on the controller board and a convenient ground in one of the unused mounting holes on the LCD controller board inside the display bezel.

    I installed the touch controller software prior to hooking up the USB cable to it, and about 10 seconds of 3-point calibration was all it took. The touch screen performs snappily (it's oh-so-relaxing to operate, and simply in a different league than 4 and 5-wire resistive). I'm amazed that I can write precisely and legibly with my finger on the touch screen's calibration screen. I may now actually have a use for the note-taking feature of my current skin.

    So, this is a mod I can wholeheartedly recommend to those budget-minded folks unafraid of dis-assembling their screens. I don't yet know the performance difference in sunlight, but the change in performance in terms of display quality and the operation of the touch screen is immediately apparent even at night, and well worth the $69 price of admission, imho. I've always had the feeling that my monitor and touch screen were a weak link in the chain of my otherwise nice hardware installation, and now I don't get that "second rate hardware" vibe from the screen at all. It now performs like a modern piece of display hardware, pure and simple.

    I have an older xenarc 700tsv( 2005) with a broken touch screen and would like to do the upgrade. what part did you have to order? part # ? also are there muilti touch panels that pit this xenarc case? what was the total price of the parts?

  6. #156
    Maximum Bitrate customaudioman's Avatar
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    also can you make regular non- touch 7" and up size lcd monitors( like xenarc) capacitive touch? If so, I dont see the need to buy vga lcd with reg touch and pay extra, when I can just buy them in non-touch form and add the capacitive panel.

  7. #157
    Maximum Bitrate tempgp's Avatar
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    Quote Originally Posted by customaudioman View Post
    also can you make regular non- touch 7" and up size lcd monitors( like xenarc) capacitive touch? If so, I dont see the need to buy vga lcd with reg touch and pay extra, when I can just buy them in non-touch form and add the capacitive panel.
    If you have any display you can add capacitive OR resitive touch pannels... thouch pannels is just and add on... The only slight problem you might have taht bezzel of regular ccreeen does not have space for extra 2-4mm glass in between the monitor. But you can adjust holding screws in most monitors and add soft rubber and you done.
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  8. #158
    Mod - iPad Forums RipplingHurst's Avatar
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    I'm thinking about buying one capacitive panel for my 12.1" tablet. I'm sure there's not enough room inside, so I have to mount it on the outside on top of it.

    Now I see on the website that the resolutions are kind of low, certainly nowhere close to 1400x1050, I didn't even find 1280x1024? Maybe I was looking at the wrong location...

    Also what people are using for bonding the capacitive touch panel to the lcd glass? Shouldn't we be using some kind of bond to avoid/minimize glare (light reflection from the space between them?). Maybe 3M does sell them too?

  9. #159
    Maximum Bitrate tempgp's Avatar
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    If you want minimize reflection there is cover transperancies for that (i dont rember the product name) but you can google it. I bough thinest film and covered my screen outside, that solved problem of sun hiting glas at 45 degrees and blinding me

    As to bomding, I have liquid rubber, i think 80 point hardness, works well but you have to buy it in gallons so alterantive can be Bondo bumper repair kit as long as you mix it so it dries soft rubber. Alternatively there is "wet" rubber spacer that are used to seal RF connectors you can use it as double side tape and shock absorver (probably best solution)
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    Acura / Honda A/V CarPC Adapter GA-NET+ - Convert your native navi DVD unit to CarPC + Dash buttons are usable in car pc!!!
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  10. #160
    Mod - iPad Forums RipplingHurst's Avatar
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    Oh, I have a quality film on top of it, the problem is not reflection, is the lack of contrast, brightness, and all that. The LCD panel itself is at fault, very cheap.

    Now wait a minute, liquid rubber? You cover the whole lcd panel with it and then lay the capacitive panel on top of it and it is transparent? wow. Very cool. Where do I get a gallon of this?

    Bondo? This is not transparent is it? It's red?

    No idea of what those wet rubber spacer are, cool idea, though, where can I find them if you don't mind?

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