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Thread: What is the lifespan of a touchscreen?

  1. #11
    Constant Bitrate
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    Ok, I will keep the suggestion in mind. I just bought this car in May so I doubt I'll be selling anytime soon anyway

    Edit: BTW what does the screen have to do with VB code? I'm just talking about if it stops working or if the backlight goes dead or something, not the whole computer croaking.

  2. #12
    FLAC
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    Quote Originally Posted by ThePistonDoctor View Post
    Ok, I will keep the suggestion in mind. I just bought this car in May so I doubt I'll be selling anytime soon anyway

    Edit: BTW what does the screen have to do with VB code? I'm just talking about if it stops working or if the backlight goes dead or something, not the whole computer croaking.
    Well if you permanently mount the screen in the dash and remove the computer when you sell, what's going to be hooked up to the screen? You'll have to remove that too. Something to think about for when you decide to mount it permanently or removable.
    Ampie Case
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  3. #13
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    1 year for two broken lilliputs (1 broke completey the other only the touchscreen controller)

  4. #14
    FLAC john1701's Avatar
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    over 4 years now with 700tsv xenarc, ts is all scratched up over time, but i can just get an new overlay for it.
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  5. #15
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    How tough is it to remove the touch screen overlay? I was thinking about attempting a DIY optical bond with it.
    I have too much time and too little aggravation in my life, so I built a carPC. ;)

  6. #16
    FLAC
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    How were you planning to do a diy optical bond? On my lilliput, the touchscreen overlay is attached to the tft panel with 4 pieces of tape...that's it.

  7. #17
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    Quote Originally Posted by nobb View Post
    How were you planning to do a diy optical bond? On my lilliput, the touchscreen overlay is attached to the tft panel with 4 pieces of tape...that's it.

    I'm still debating doing it at all, because it's incredibly risky, but there are a few companies out there who make adhesives specifically for these types of applications...trouble is matching indices of refraction with my materials reasonably well (if possible) and applying adhesive so as not to bubble and to give an even coat. It should be done in a clean room, but all I have is a reasonably dust-free basement (although the dust aspect is the least worrying to me...clouding/ruining my screen is foremost.
    I have too much time and too little aggravation in my life, so I built a carPC. ;)

  8. #18
    FLAC
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    Any links?

    I dont know much about the optical bonding process, but Im guessing they just specially glue the touch overlay to the front of the lcd. I can see a disadvantage in that if your touch overlay fails, then your whole monitor is useless and cant just replace the touch overlay for $50. Bubbles are definitely a problem. If this is anything like applying a screen protector, then even a small speck of dust will cause a noticeable surrounding bubble. As soon as you crack open the panel, it is almost inevitable that you are going to get dust inside.

  9. #19
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    After 4 years using a Car PC I learned that a touchscreen is the wrong input device anyway.

    Normal TFT/LCD plus
    - Physical buttons (Volume, next/prev, most used functions for music), best on steering wheel
    - Touchpad, trackball, mouse (cheap, i.e. ergonomic touchpad . com for $29) for mouse functionality next to your armrest to distract you as least as possible and have a quiet hand
    - USB keyboard in side door for emergency activities (such as ctrl-alt-del, long text input)


    -

  10. #20
    Super Moderator. If my typing sucks it's probably because I'm driving.... turbocad6's Avatar
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    I agree with that^^^ but even with good tactical controls it's always disappointing to poke at the screen & get no response but distorted pixels, to me a touchscreen is just so you don't feel like somethings missing & then leave it to either/or for control but have both...

    the difference between good fabrication & bad fabrication can be in how serviceable something is afterwards, I wouldn't think of making anything permanent & not serviceable unless your working on something disposable... your car is not disposable so you should make it servicable...


    a lot of thought can go into the how to modify while still keeping it serviceable & this should be a high priority in your design... I try to make everything go together & come apart as easy as possible, few screws as possible to remove, interlocking & just easy to take apart & re-assemble repeatedly without any damage. if this is a consideration from the design stage then it's easier than dealing with this as an afterthought... the most crappy designs are stuff that is just bonded or screwed together with no thought of the serviceability or taking it apart again...

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