LCDInfo.com

Hi,

How difficult will it be to implement this controller. I dont have this lcd yet but it should not be to difficult. It is used in the nokia 3510i. It is a 98x67 lcd at 4096 colour (CSTN). The datasheet looks almost the same as the phillips controler found in the 3310. It also uses a serial data transmition.

Datasheet:

http://www.mikrocontroller.net/attachment.php/60010/D15G14E_14_030526.pdf

Pinouts:

Pin1 _Reset
Pin2 _Cs
Pin3 Gnd
Pin4 Sdata
Pin5 Sclk
Pin6 Vdigital 1.8V
Pin7 Vbooster in 2.7V
Pin8 Vlcd max.12V

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Rudi Grobler

its a beautifull dream of using color lcd
but actually just a dream, because i don't think lcdinfo was done to use color lcd. It could be done but it would require many changes, mostly in the graphics class's

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Shadows move where light should be

Yes, It will require some changes but it is not impossible. If it atleast can display a b/w image on the colour screen, then we can support it!!

To add colour can be a "second phase" development.

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Rudi Grobler

yes of course, a b&w will work
i didn't said it was not, but color is a lot more difficult

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Shadows move where light should be

I looked at the datasheet and it reminds the way how PCD8544 works. But of course there are colors and other more advanced things. The controller also seems to support parallel mode but looking at the display pinout only pins for serial mode are available. Another thing I noticed is that there is no D/C pin but rather for every byte you send you first send the bit telling D/C "pin" state making it total 9 bits.

It looks like it could be made work and might be interesting to do some experiments.

Like DarkElf said LCDInfo was designed for B/W operation but making a two color driver should be possible.

colors...
have you ever use texas instruments calculators
they all can manage what i will say, but TI89 & 92 & V200 can manage it better (and their lcd is beter: 240x128 for the ti92)
It's possible on this calculator to transform the b&w lcd into a 4 or 7 grays level.

The transformation is only software and work with layer (2layers for 4 grays): each layer is sent to the lcd in alternance.
Why not to try this on our lcd? (ks0108 for example )
it may work if we found the good timings for each layer :p

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Shadows move where light should be

Nice idea using layers for transforming b/w lcd to gray-color. Propably it could be done in four gray colurs optimizing draw routines alot, but above that all you would get is flickering screen.

Actually I noticed also that effect when testing lcd, using simple Game of Life. Effecet became quite visible on 8 fps chancing pixel color between "black" and "white".

Some gray scale discussion: http://zerver.student.utwente.nl/schijf ... c.php?t=13

The problem with display connected to parallel port is that it would cause enormous cpu usage. Also flickering would be seen. Maybe for usb and serial displays which are using microcontroller for driving the display this might work.