COG+PIN Black Segmented LCD Display ST7035 I2C LCD Transmissive Screen

How COG Segment LCDs Work?

1. Glass Substrate:

   • The display is built on a glass panel containing liquid crystal cells.

2. Integrated Driver:

   • The driver IC is mounted directly on the glass, which controls the individual segments of the LCD. This eliminates the need for a flexible PCB (printed circuit board) or external wiring between the glass and the driver, reducing complexity.

3. Polarization:

   • The liquid crystals are aligned between two polarizing layers. When voltage is applied to the segments, the crystals align in a way that blocks or allows light to pass, creating the visible segments.

4. Segment Configuration:

   • The display typically includes a matrix of segments that can be activated or deactivated to form numbers, letters, or custom symbols.

Detailed Parameters: