Electronics > Projects, Designs, and Technical Stuff

KOPIN KD040922K-K micro sized LCD display

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kyndal:
did some digging today.

the MUX-0 on my TW9910 chip got fried.  it would not recognize a composite input

moving the input to mux-03, and swapping to that input in the register over i2c  got it the TW9910 to register the input. and start spewing out data in YCBCR 422 format
 
the SSD1502 is putting out analog RGB to the the LCD,  which lights up all white..   no picture though.

the 9v and 3.3v inputs on the lcd boards where dead, so i manually powered those.  still no luck

looks there has been a bad voltage reach the LCD's   this may be the end of the road  |O

the RGB signals  comming out of the board to the LCD is in the 1V PP range.  it should vary between around 2+ <-> +9v  with common being about 5v 
so i tried feeding some signals into the lines...   no luck.
so... there are a few things going wrong here i think im going to call it for now.


oh well.   well spend weekend tinkering

Rune

rhodges:
If you would like to try again with a 320x240 display, you can get more here:
https://www.goldmine-elec-products.com/prodinfo.asp?number=G19051

The current price of $5 is insane. They go on sale for a fraction of that. Just wait and get a better price.

I looked at the data sheet and decided it was not worth any electronics and programming, even if it it were free. If a box of them appeared on my door, I would just put them in the trash.

kyndal:
Ya.. they do seem tricky to drive, without the right controller.

trouble is.. im working on something that needs a 0.5" LCD,  i have a 0.49" AMOLED but 32x64 pixel is just a tad shy of the target  :-DD

Rune

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