L
Lewin A.R.W. Edwards
Guest
Hi all,
I asked here about small LCDs with COG controllers recently, and had some
interesting suggestions, but nothing that directly led me to being able to
prototype my project. After investigating the matter a lot deeper, it seems
like my only option is to repurpose a cellphone display. I'm aware of
numerous projects that involve monochrome LCMs from different phones. But I
need one grayscale LCD and one color LCD. I need at least 4 grays,
preferably 8. Not only are all the projects I can find monochrome, but most
of them use European phones, and it's quite difficult to cross-reference the
numbers with equivalent U.S. models.
I don't mind spending a couple of hundred dollars on these displays if need
be - so it's quite acceptable for me to have to buy and junk a brand-new
cellphone. But I need to be *sure* that I can use the LCD.
Can anyone point me to a homebrew project that will lead me to suitable
cellphone LCDs available in North America? To reiterate my needs:
1 grayscale STN LCD ~1" diag or smaller, 96x64 or so is fine (anything down
to about 48x48 is probably OK). Minimum 4 gray levels.
1 CSTN LCD, at least 2 bits per color component, ~1" diag or smaller, same
kind of resolution requirement as above. This is more important than the
grayscale one, actually.
LCD must have integrated controller. Anything much bigger than about 1.5"
diagonal is too large.
I've found numerous parts that would suit me fine, but they're just not
available as samples. I've also found plenty of sites selling replacement
LCDs for cellphones, but no datasheets for those parts. So I'm kind of
between a rock and a hard place.
I asked here about small LCDs with COG controllers recently, and had some
interesting suggestions, but nothing that directly led me to being able to
prototype my project. After investigating the matter a lot deeper, it seems
like my only option is to repurpose a cellphone display. I'm aware of
numerous projects that involve monochrome LCMs from different phones. But I
need one grayscale LCD and one color LCD. I need at least 4 grays,
preferably 8. Not only are all the projects I can find monochrome, but most
of them use European phones, and it's quite difficult to cross-reference the
numbers with equivalent U.S. models.
I don't mind spending a couple of hundred dollars on these displays if need
be - so it's quite acceptable for me to have to buy and junk a brand-new
cellphone. But I need to be *sure* that I can use the LCD.
Can anyone point me to a homebrew project that will lead me to suitable
cellphone LCDs available in North America? To reiterate my needs:
1 grayscale STN LCD ~1" diag or smaller, 96x64 or so is fine (anything down
to about 48x48 is probably OK). Minimum 4 gray levels.
1 CSTN LCD, at least 2 bits per color component, ~1" diag or smaller, same
kind of resolution requirement as above. This is more important than the
grayscale one, actually.
LCD must have integrated controller. Anything much bigger than about 1.5"
diagonal is too large.
I've found numerous parts that would suit me fine, but they're just not
available as samples. I've also found plenty of sites selling replacement
LCDs for cellphones, but no datasheets for those parts. So I'm kind of
between a rock and a hard place.