SSD1963 Thoughts

Here is a non connected look of the SSD1963 breakout so far. Has changeable OSC settings and will breakout almost every pin!

Edit: Changed R2 to be of Variable type for variable Boost!(vr1)

Here is a Routed version. This is all hand routed. No AUTO ROUTE crap!

It will cost me $30.78 to get 3 of these PCBs! Expensive! Thats $10.26 for each PCB no parts or labor included. Imaging the $18 IC that goes on it.. lol that $28 not including shipping. Ill have to source the SSD1963 from china or something… i saw it at a supplier for $10 but i have to buy 10 pieces… so thats $100 for 10 ICs

Then add $30.78 * 3 (3 sets of 3 PCBS) = $192.34 for 9 PCBs and 10 SSD1983 Then i need 9 connectors for each 40 pin and 4 pin. Thats another $10, Misc parts is about $5 then shipping…Β  So i put it at costing me $240-$250 to make 9-10 Fully populated boards! OMG im not rich! heh so that means if i make 9 Boards … to make my money back i have to sell them for $27.78.. to make profit i have to sell them for more…

So if you see these at my store for $35 you now have a good understanding. Also Linas gave me a link to one:

http://www.newhavendisplay.com/index.php?main_page=product_info&cPath=91_372&products_id=2656&fb_source=message

Its from Newhaven Display, its $35… so why buy mines? Well here are just a couple of reasons:

1) Mines is open source… always know what to replace if anything happens.
2) Mines has a variable power supply for powering different LED back light voltages.
3) Mines will be purple with gold plated goodness.
4) Mines has a THROUGH HOLE (0.1″ aka 2.54mm) breakout which means easier to test any LCD and any MCU.
5) Made in the USA.. (Only main SSD IC is from china)
6) Helps support more of my work which in turn helps all.

NOTE: I have to add the transistor for backlight control πŸ™‚

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About atomsoft

Starting a small company. Trying to build it from ground up. Only 2 employees so far. Nothing serious yet but soon!

14 responses to “SSD1963 Thoughts”

  1. megahercas says :

    it would be nice to have variable light voltage with simple smd potentiometer, it will add some cost, but that would be nice feature

  2. atomsoft says :

    Yeah i was thinking about that. I never tried to make a MC34063 variable… shouldnt be too hard.
    I think making R2 a variable resistor will do. But what should the max current be ? 20mA – 25mA ?

  3. megahercas says :

    feedback divider, just add variable resistor ant that it πŸ™‚

    • atomsoft says :

      Whats a feedback divider? Heh im smart but dont know everything πŸ™‚

      Heh scratch that, the feedback resistor to a variable type which is R2… wow i must be tired πŸ™‚

  4. atomsoft says :

    POST / SCHEMATIC updated! Please refresh page and re-read the main article πŸ™‚

    Thanks for the suggestions megahercas… Hey whats your name?

  5. megahercas says :

    or another idea, since it will be LED back-light, use constant current driver, no matter what you have, or 7,5V back-light, or 25V, it will work instantly (20mA constant current boost driver).
    argh, so many ideas how to build stuff, but it cost sometimes 😦

  6. atomsoft says :

    Yeah, i have no clue how to make a constant current boost tho 😦 Ill leave it variable and try to make the max output current 20mA so nothing blows up.. πŸ™‚ Or in fact… can i simply add a place holder for a resistor? so user can add there own value for final current… would be cheaper and easier than constant current…

    Like all people should know .. R = V/I so if i need 20mA and i know its spitting out 29v… then: 29v / .02A = 1450… 1.45kOhm or closest is probably 1.5k so with 1.5kohm its i = v/r = 29v / 1500 = .0193A = 19mA

    Linas, ah. I should have guessed… Cool!

  7. megahercas says :

    It’s same principle as voltage stabilization. all you need is measure voltage which is in series to target GND. lets say you want to make 20mA current stabilization, ok, so you need shunt resistor, 1R will work. so U=I*R=0.02*1=0.02V.
    so you can’t go up 0.02V, but that is problem, because you have 1.25V reference on ic’s, so what you do is using simple opamp you boost voltage from 0.02 to 1.25V ( 1.25V/0.02V= 63x voltage boost )
    that’s it πŸ™‚
    i don’t know will it work, it’s just theory πŸ™‚
    Hm, in china for 40$ is possible to get with shipping 4.3″ lcd with SSD1963 and touchscreen driver 😦
    But your board would be better for overall testing

    • megahercas says :

      which instead of witch πŸ˜€ ( my English is not that good πŸ˜€ )

      • atomsoft says :

        I fixed/edited the typo for you. Its ok im in US and always mix things up πŸ™‚
        Your english is actually better than most people.

        Ok i think im starting to understand. I guess i should play around with this theory and see what i can do. Ill need to order the shunt resistor which shouldnt be a issue.

        • megahercas says :

          1R resistor will work like a charm, since 20mA is nothing, and power drop is just 0,4mW (good old 1206 will work more than fine, and even here in Lithuania i can buy 1R 1206 0,25W resistor for 0,04$ )
          but you must test it on single side pcb before go to the production of this pcb.
          and in your case i would go to linear ic for voltage/current stabilization, because i like them , you can use simple 10uH inductor ant that would give 29V at high efficiency and low ripple voltage πŸ™‚

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