Case study
128×64 Serial COG Display Module
A chip-on-glass graphic module driven over a serial interface, for instruments where board space is the constraint.
The requirement
The instrument needed a graphic readout — text lines plus a bar graph — but the board had no room for a chip-on-board assembly, and the controller only had a serial port free.
What we supplied
- COG module with the controller bonded directly to the glass, keeping the outline thin
- Serial interface matched to the host controller, so no extra driver IC on the board
- Backlight integrated into the module
- Mounting and pinout defined against the enclosure drawing
Why COG
Bonding the chip to the glass removes the PCB of a COB module, which is usually the difference between fitting the enclosure and redesigning it.
