G321DX5R1AC is a Seiko Instruments (SII) industrial graphic LCD module. This legacy monochrome display is designed for industrial instrumentation, automotive systems, and specialized embedded equipment. It utilizes FSTN/STN technology with CCFL backlight and parallel interface, optimized for reliability rather than modern graphical performance.
| Display Type | FSTN / STN-LCD (monochrome, reflective/transmissive variants) |
| Resolution | 320 × 200 pixels |
| Screen Size | ~6.3 inch class module |
| Display Mode | Black & white (negative / transmissive type) |
| Brightness | ~70 cd/m² (typical) |
| Contrast Ratio | ~6:1 |
| Backlight | CCFL (1 lamp, ~10,000 hr life, external driver required) |
| Interface | 8-bit parallel (8080 / 6800 compatible), ~20-pin interface |
| Operating Temperature | 0 ~ +50 °C |
| Storage Temperature | -20 ~ +60 °C |
| Supply Voltage | ~5V typical |
