3v Lcd

**khoog** · - 9th August 2005, 20:39

Does anyone know of a 3V, 2X16 LCD module (with backlight)?

Regards,
Klaus

**NavMicroSystems** · - 11th August 2005, 00:17

Well,

it depends...

I'm using GLCD's on several projects.

If you are willing to write your own driver and you can afford the code overhead to drive a GLCD this might be an option:

A NOKIA 7110 LCD would give 8 lines with 16 chars each.
And they are really cheap (less than any backlit character display).

Many other NOKIA LCDs (3310 or other) would do.
(if you can afford the code overhead)

**Ron Marcus** · - 11th August 2005, 18:11

I had a similar challenge, but without backlight. I programmed the hardware PWM to be a squeare wave oscillator at around 10 KHz. I then used two shotky diodes and two caps to double the voltage. After an LDO 5 volt regulator, I had enough power to run the LCD. Hopefully the backlight you chose can be powered seperately from 3 volts. If not, you will need a real boost regulator (try Maxim) to give you enough current for the backlight.

Ron

**khoog** · - 11th August 2005, 18:44

Thank you for your replies.

I have found a Vishay part: LCD-016M002L that may do the job.

I like the idea of a cell phone type graphic lcd.

Need to find a generic version- all I could find on the Nokia part were cell phone surplus parts for hobbyists. Can't really design those into a product because they may not be available 2 or 3 years down the road.

Thanks again,
Klaus

**NavMicroSystems** · - 14th August 2005, 22:35

Originally Posted by khoog

I like the idea of a cell phone type graphic lcd.

Need to find a generic version- all I could find on the Nokia part were cell phone surplus parts for hobbyists. Can't really design those into a product because they may not be available 2 or 3 years down the road.

Klaus

Klaus,

It is a matter of quantity

Say your your target is 1k per year for the next 3 years.

So you would need 3k LCDs.
Why don't you just get them now at far less than $1 each (@ a quantity of 3k) and put them on the shelf?

I agree, there is not much of a chance of the same kind of display being available in three (or five) years time, but who cares, Wouldn't you have re-designed your product anyway in 2010?

And having a GLCD makes your product look much better than the competition (if there is any)

Attached if an image of one of my projects built around my "favourite" $0.75 Cellphone LCD.