How To Drive a custom LCD panel - Monochrome lcd

How To Drive a custom LCD panel - monochrome lcd

How to drive a custom LCD panel - step by step

Monochrome custom LCD panels (TN, STN, FSTN) need a driver IC and correct interface wiring. Here is the general process:

1. Identify the panel package - COG (chip-on-glass) and COB (chip-on-board) panels use different driver IC packages.
2. Choose a compatible driver - common monochrome drivers include ST7066/ST7070 for character LCDs and NT7605/UC1701 for graphic COG panels.
3. Wire the interface - most custom panels use 4-bit or 8-bit parallel, or SPI/I2C serial interfaces.
4. Set the contrast - adjust the LCD bias voltage (V0) resistor, or the software contrast register for COG panels.
5. Initialize and test - send the standard initialization sequence and display a test pattern to verify segments and pixels.

Need a custom monochrome LCD for your product? See our custom LCD display page or the TN/STN/FSTN technology guide.