| Product | Model Name | TDD-EPD-3120 |
| Module parameters | Panel Size (diagonal) | 31.2 inches |
| Panel Type | Black and white electronic paper ink screen |
| Colour | Black and white, 16 gray levels |
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| Flat/ Curve/Plane/Curve | Flat |
| Fully bonded | 3mm cover glass optical bonding, with AG and UV |
| Front Light | Support, maximum power 7.68W |
| Display | Resolution | 2560*1440 |
| Aspect Ratio | 16:9 |
| Display Viewing Area(H*V) (mm)/Viewable area size | 691.2(H)×388.8(V)mm |
| Pixel Pitch (H)*(V) (um) Screen pixel pitch | 0.27（H) ×0.27(V)mm |
| Contrast Ratio (Typ.) | 12:1 |
| View Angle(H/V) | 178°(H)/178°(V) |
| Panel Refresh Rate (Max.) Screen refresh rate (maximum) | 50HZ |
| I/O | HDMI-OUT | 1st Road |
| RJ45 | 1 channel 10M/100M adaptive |
| USB2.0 | 2-way |
| TF card | Maximum support 128G (optional) |
| 4G | Optional |
| Android motherboard configuration (Configuration) | System | Android 7.1 |
| CPU | Quad-core ARM Cortex A7 1.2G |
| DDR3 | 1G |
| EMMC | 8G |
| WIFI | 2.4G |
| BT | 4.0 |
| Protection level | Outdoor waterproof grade/protection grade | IP65/IK08 |
| Structure | VESA Mount Wall Mount Specifications | Support hanging and wall mounting (default wall mounting) |
| KEY (4-button key) | POWER, UP, DOWN, RESET |
| Working indicator light (RED) | The device breathes for five seconds after it is turned on, the red light will be on when charging, and the light will go out when it is turned off. |
| Power | 12V4A DC UPS+Low Temperature Lithium Battery | 12V4A, 54WH |
| Solar panels | 20V/50W Monocrystalline Silicon Solar Panel |
| Power adapter | Adapter with Type-c output PD protocol (optional) |
| Machine power (when refreshing) | ≤3.7W |
| Power of the whole machine (when not refreshing) | ≤0.01W |
| Shutdown power | ≤0.001W |
| Front Light | Support front light | Maximum power 15.36W |
| software | Support secondary development | API and SDK available |
| Refresh time | ≤2 seconds |
| Brushing method | USB flash image |
| language | Support multiple languages (English by default) |
| Machine shape and weight | Overall dimensions | 843.2*560*80mm |
| Packing size (wooden box) | 950*200*750mm |
| net weight | 28Kg |
| Gross Weight | 38.5Kg |
| Packing | Packing box | Wooden box packaging (fumigation-free) |
| QSG User Guide/Instructions | Default electronic version |
| Warranty card | 1 serving |
| Certificate | 1 serving |
| Temperature and humidity | Storage temperature | -25℃-70℃ |
| Operating temperature | -15℃-65℃ |
| humidity | 10%-90% |
| Functional introduction of the whole machine: Wiring-free installation, energy saving and emission reduction, low-carbon eye protection. Super power saving, the product is widely used in outdoor smart buses, subways, airports and other outdoor public areas information display screens |
![[pics:title]](/static/upload/image/20250314/1741959593811793.jpg)
