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Thread: LCD Backlight Upgrade

  1. #31
    Maximum Bitrate
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    Quote Originally Posted by Scouse Monkey
    dude. we have looked at all these options - trust me. We have looked at 1,3 and 5W LEDS but they all require cooling or they won't last very long. This cooling is bulky and a lot of people just don't have the room. I for one don't. The 3W LED is the equivalent of 60 normal LEDs but it runs at up to 70 degC and needs a heatsink.

    LED backlighting is still not used becasue it is not as straightforward as you think. If you point me to somewhere i can get 1W while LEDS that run cool then please show me as i would love to try them and eliminate the inverters from the solution all together.

    The LEDs MUST be drived by PWM controler IC (eg. MAX ICs) in order to cooldown, you can not light them by DC, that is the key point.

  2. #32
    Maximum Bitrate eCarô's Avatar
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    Quote Originally Posted by dragonBTV
    her is the web address of the company

    http://www.superbright.cn

    I do NOT recomand anyone to buy their expansive models

    and here comes the details

    (sorry, the doc of their offer is too large to attach 680K after zip)
    DragonBTV has emailed me the doc that he posted about. I'd be happy to host it, except it's in Chinese. I may be wrong here, but I don't think it will be useful to the Brits and Yanks that seem to be interested/working on this project. Correct me if I am wrong.

  3. #33
    Variable Bitrate choyak's Avatar
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    the superbright site has the option of English also........
    Carputer currently 'ghettoed' into car!!!

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  4. #34
    Maximum Bitrate eCarô's Avatar
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    Yep, but the doc that he emailed me does not.

  5. #35
    Maximum Bitrate
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    Quote Originally Posted by eCarô
    Yep, but the doc that he emailed me does not.

    tables and data in english, that will be enough
    all others are talking about how difficult their works....

  6. #36
    MySQL Error Scouse Monkey's Avatar
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    Quote Originally Posted by dragonBTV
    The LEDs MUST be drived by PWM controler IC (eg. MAX ICs) in order to cooldown, you can not light them by DC, that is the key point.
    i know

  7. #37
    MySQL Error Scouse Monkey's Avatar
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    oh, and i can get the document translated at work.

  8. #38
    Maximum Bitrate eCarô's Avatar
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  9. #39
    Low Bitrate gothate's Avatar
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    Thanks for the updates guys, and moving it to a thread that doesn't have 800 posts...yet. A couple more weeks and the fun starts!

  10. #40
    MySQL Error Scouse Monkey's Avatar
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    I am confused now. Should i post new development ideas here or int he other thread and keep this for info.

    Anyway....DragonBTV, thanks for that link to superbright, it a vary good site. It is a bit slow and i am in work so i will look later.

    i had a quick look at their screens and they upgrade current LCDs such as this one...http://sharp-world.com/products/devi..._LCY00030A.pdf
    This is a 6.4" sharp panel - simialar to my new sharp TFT. It has a min contrast ratio of 100 (mine is 60) and they have it up to 1000nit using what looks like a CCFL upgrade. See here: http://www.superbright.cn/EN/products.asp

    This place would be perfect to source high brightness LCDs or backlight parts from.

    JCD, they also do inverters that could possibly power our CCFLs. They do inverters for 2 to 18 CCFLs! This place must be simply putting new CCFLs in and replacing the diffusers etc to boost contrast. Have you contacted that place I found the other day? I will contact them tonight and try and get some samples of their films.

    Dragon, is ther any chance you could dig around and find out exactly what measures they are taking to boost the brightness as they are using LCD panle very similar to ours. Cheers.

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