In our quest for easy to use, not to expensive, and not to hard to get color LCDs there's finaly some light at the end of the tunnel. The Nokia phones housing the displays we're talking about is the 6610.
This is a gorgeous 132x132 pixel serial color graphic LCD display. It is a small carrier board with Nokia 6610 LCD. This inexpensive LCD comes with a powerful software adjustable LED backlight. It uses a simple 3 wires serial SPI 9-bit interface. This is a nice compact color LCD board (1.7" x 2.2").
The very important and unique feature it can interface with 5V or 3.3V logic directly. Since the LCD takes 3.3V logic, there is an on-board logic converter so you can interface 5V microcontroller directly. There is also an on-board boost voltage circuit to drive the LED backlight at approximately 7.0V. You can even vampire a small current to from the boost circuit to power other circuitries. It is breadboard friendly so you can plug directly onto the breadboard. Only 6 connections are needed:
• VCC (3.3V to 5.5V)
• GND (supply ground)
• RESET (LCD reset, active low)
• SDATA (serial data)
• SCLK (serial clock)
• CS (chip select, active low)
• LCD Logic: 3.3V or 5.0V
• LED Backlight : 7V (On-board DC/DC converter)
• 132x132 pixel
• 0.1” spacing (breadboard ready)
• 4,096 Color Display
• 9-bit SPI
• Uses the Epson S1D15G00 Controller
• Connect directly to 3.3V or 5.0V microcontroller
• 132x132 serial color graphic LCD with carrier board
NOTE: The display that is being used is either an Epson model or a Philips model. Although they are being used in the same phone, they have a different controller. The phone's firmware detects which display is attached to it (the displays have a hardwired ID).
How do you identify the type of controller you have on your board?
Philips controller has the green sticker label "NXP" on the LCD onnector.