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Thread: "Transflective" LCD panel with res touch+controler for $101+$36 S+H

  1. #971
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    Quote Originally Posted by Scott Carver View Post
    It's been a while since I've been on here, but I have a question. Is there a way to use your screen for a rear view camera, or back up camera? Let me rephrase. What I want to do, is figure out if the screen will auto on, when the car is put in reverse or the camera is turned on? I don't want it on all the time but would use the screen specifically for the camera and back up abilities. Would I, in theory, be able to just use the power source that turns the camera on to power the screen so they're on at the same time and then off at the same time? Does that make sense? I have a tablet that I'm going to be using as my main unit, but I can't find a way to get the tablet to take the video signal, unless there's a bluetooth camera, which I can't seem to find. I'm already using your screens for mirroring for headrest monitors off the tablet, so I want to use a third in the vehicle, to match, and use it specifically for back up camera. Can you help me with some suggestions maybe?
    Yes, if no signal to the monitor. it will remain off (sleep mode). when a 12V signal come from your reverse system to the trigger. It will auto on and switch to AV1

    You don`t have to turn it on and off.

  2. #972
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    Quote Originally Posted by ninja6o4 View Post
    Basically yes. I am working out how to set up the 12v trigger for backup camera input switch, but in your case, you're saying that you want the screen ONLY for backup camera purposes. This would be easy to do.
    • The LCD supports auto-on and will use the same video input as when it last had power
    • The LCD draws max 2A, so it depends on the power source for your camera.


    If I were you, this is what I would do:
    1. Wire your backup camera power to your reverse lights. They don't draw enough power to strain that circuit
    2. Also wire your switched +12V on your LCD to the reverse lights. This doesn't draw power, this only tells the LCD it's time to power on. You should be able to find a lead for this up front, but if not, you will have to run a wire from the reverse light all the way to the front for the camera.
    3. Wire your LCD power to a stronger circuit (like radio), or run your own lead wire to battery.
    Thanks for helping

  3. #973
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    Quote Originally Posted by ninja6o4 View Post
    Derrick,
    Is there a diagram that shows the pinouts that I solder into for this?

    Also, for your bezel prototype, what is the distance from the front of the bezel to the LCD itself? Some OEMs create shade by "pushing" the LCD further in, and some even have trim along the top to block sunlight from the screen. This could be useful for some customers, even if you have it a separate optional item to use that clips in if needed.
    I will find a diagram for you

    the distance is about 1cm. We can not make it deeper or it won`t fit some cars. Maybe we should build a removable shade outside?

  4. #974

  5. #975
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    Question, with the capacitive multi-touch. Since it works with fingers, it is hard to reach the edge because of the deep bezel (finger is bigger than tips). Will that be a problem? Or we should provide a stylus?

    Help! opinions require urgently, because we are about to finish the capacitive panel order

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  6. #976
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    Quote Originally Posted by 8838.com View Post
    We will cover the USB port maybe by a plug?
    Yes, a rubber flap cover/plug similar to the one in the below picture would be perfect.
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    Quote Originally Posted by 8838.com View Post
    regarding to the bottom distance, I need to wait until the final design come out. But it should not be a problem because this part will sitting between the 2din case and your case`s open bezel.
    I know of at least 3 cars where this distance is a problem. If more, it will hit the climate control unit and 2DIN wont fit. But as long it is within 2-4 mm of a 2DIN unit spec, it should be alright.

    Quote Originally Posted by 8838.com View Post
    Auto brightness control has been add (thanks to Ken Homma again). It is like a trigger, when a 12V signal come in(from your headlight), it will auto dim to 60%
    That's a good feature. However, if the level of dimming can be configured through the menu, it would be great but even otherwise, it is a well thought out addition.. Thanks Ken Homma!

    BTW, the Engineering Sample looks really nice!
    Regarding the reachability to the screen edges, its not a major problem since most well designed CarPC front-ends have good sized button and they are usually away from the edges. You could include a capacitive touch stylus for purists though but I guess its use would be very limited in a car except when setting up.
    Last edited by DigitalVampire; 03-13-2012 at 12:47 AM.

  7. #977
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    Wow....shocking how fast you guys can crank out a sample.

  8. #978
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    Nice, I wish I waited now for this new screen. Is there a possibility of a single din assembly?

  9. #979
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    What color are the backlit buttons? I'm thinking they're probably green. If so can you post information on the smd size of the leds? For my insall i'd like all the lights to be red and I have no problem using my smd solder solder station to change them, i just need to know the physical size of the leds.

  10. #980
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    Quote Originally Posted by 8838.com View Post
    I will find a diagram for you

    the distance is about 1cm. We can not make it deeper or it won`t fit some cars. Maybe we should build a removable shade outside?
    I would recommend a removable shade. It should be pretty cheap to have a clip-on piece of plastic that can go along the top.

    I personally would not use a stylus in vehicle. It's not practical and you will just lose it...

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