| Data Sheet | Data Sheet |
| Model Number | M4091A |
| Viewing Direction | 6:00 |
| Logic Operating Voltage | 5.0 |
| Character Resolution | 20 × 2 |
| Character Type | 5 x 7 Dot |
| Bonding Type | COB |
| Display Mode | FSTN |
| Module Dimensions (mm) | 124.51 × 37.08 × 13.33 |
| Viewing Area | 103.0 × 19.0 mm |
| Active Area | 98.88 × 14.38 mm |
| Polarizer Mode | Transflective |
| Display Image | Positive |
| Backlight Type | LED |
| Backlight Color | Yellow-Green |
| Operational Temperature (°C) | -20 to 85 |
| Storage Temperature (°C) | -40 to 85 |
| Interface Types | |
| Integrated Controller | ST7066U-1P |
M4091A
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