| PartNumber | E1441CS021 |
| Brand | PDI |
| Size | 4.4 |
| Application | EPT |
| Resolution | 400×300 |
| Composition | EPD |
| Brightness | |
| CR | |
| Colors | Monochrome |
| Backlight | No B/L |
| Interface | SPI |
| Panel Brand | PDI |
| Panel Model | E1441CS021 |
| Panel Type | EPD , EPD |
| Panel Size | 4.4 inch |
| Active Area | 89.6×67.2 mm |
| Outline | 98.504×80.4×1.1 mm |
| Surface | Antiglare |
| Contrast Ratio | 7:1 (Typ.)(Reflective) |
| Display Colors | Monochrome (1-bit) |
| Viewing Angle | |
| Signal Interface | SPI, 50 pins |
| Input Voltage | 3.0/3.0V (Typ.)(VDD/VCC) |
| E1441CS021 | PDI | 4.4 | 400×300 |
| ET044AS013 | PDI | 4.4 | 400×300 |
| ET044BS011 | PDI | 4.4 | 400×300 |
| E1441CS021 | PDI | 4.4 | 400×300 |
| ET044AS013 | PDI | 4.4 | 400×300 |
| ET044BS011 | PDI | 4.4 | 400×300 |