| PartNumber | ULCD-220RD | ULCD-220RD-AR | ULCD-220RD-PI |
| Description | Display Modules 1.38"intelligent LCD module w/ Diablo | Display Modules 1.38" LCD pk Arduino w/adptr shield+cable | Display Modules 1.38"LCD pk Rsbry Pi w/adptr shield+cable |
| Manufacturer | 4D Systems Pty Ltd | 4D Systems Pty Ltd | - |
| Product Category | Display Modules - LCD, OLED, Graphic | Display Modules - LCD, OLED, Graphic | - |
| Series | - | - | - |
| Type | Non-Touch | Non-Touch | - |
| Packaging | Bulk | Bulk | - |
| Interface | TTL | TTL | - |
| Display Type | TFT - Color | TFT - Color | - |
| Display Mode | Transmissive | Transmissive | - |
| Viewing Area | 35.10mm Diameter | 35.10mm Diameter | - |
| Backlight | LED - White | LED - White | - |
| Background Color | - | - | - |
| Touchscreen | - | - | - |
| Diagonal Screen Size | 1.38" (35.05mm) | 1.38" (35.05mm) | - |
| Dot Pixels | 220 x 220 | 220 x 220 | - |
| Graphics Color | Red, Green, Blue (RGB) | Red, Green, Blue (RGB) | - |
| Maximum Operating Temperature | + 60 C | + 60 C | - |
| Minimum Operating Temperature | - 10 C | - 10 C | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Operating Supply Current | 450 mA | 450 mA | - |
| Interface Type | I2C SPI TTL | I2C SPI TTL | - |
| Dimensions | 42.4 mm x 46.9 mm x 14.1 mm | 42.4 mm x 46.9 mm x 14.1 mm | - |
| Display Resolution Pixels | 220 x 220 | 220 x 220 | - |
| Diagonal | 35.1 mm | 35.1 mm | - |
| Backlight Type | LED | LED | - |