| 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) |
| ET044AS013 | PDI | 4.4 | 400×300 |
| EK014AS014 | PDI | 1.44 | 128×96 |
| EQ030AS181 | PDI | 3.0 | 320×240 |
| ET044AS013 | PDI | 4.4 | 400×300 |
| EW074AT012 | PDI | 7.4 | 480×800 |
| EW074BT011 | PDI | 7.4 | 480×800 |
| LS012B4DG01 | SHARP | 1.2 | 184×38 |
| LS012B7DD01 | SHARP | 1.2 | 184×38 |
| LS013B7DH01 | SHARP | 1.26 | 144×168 |
| LS013B7DH03 | SHARP | 1.28 | 128×128 |
| LS013B7DH05 | SHARP | 1.26 | 144×168 |