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| Model | |
| Brand | i-Teach |
| Name | Interactive Smart Class Board For Education |
| Code | WBI75H |
| LCD Panel | |
| Size | 55 65 75 86 98 110 inch |
| Panel Brand | SAMSUNG、LG、AU (gauge A screen) |
| type | TFT-LCD S-PVA |
| Resolution | 3840 × 2160 (UHD) @60hz |
| Brightness | 450cd/m² |
| Ratio contrast | 2000:01:00 |
| Visual Angle (horizontal/vertical) | 178°/178° |
| Response time | 8ms |
| Visual area(mm) | 1209.6(W)×680.4(H) mm |
| pigment | 16700000 color 24Bit |
| Color gamut (NTSC) | 72% |
| Backlight | WLED |
| display scale | 16:09 |
| Response time | ＜8ms |
| life | >60000H |
| Infrared touch characteristic | |
| Touch the specifications | Infrared touch frame |
| Glass | 4mm tempered glass |
| Glass transmittance | > 88% (higher transmittance depends on glass surface treatment technology such as AR/AG) |
| Object induction number (IR) | Touch at 20 |
| Number of infrared induction lines (W D) | 32767 × 32767 |
| Positional accuracy | More than 90% of the touch area is 2mm |
| The interface definition | USB 2.0(Full speed) |
| Touch the strength | Zero pressure touch |
| The light resistance | It has light resistance |
| Induction life | 6 million times |
| The response time | ＜8ms |
| The power supply mode | Full duplex usb-powered DC +5V up to 500mA |
| Environment | |
| Working temperature | 0℃~50℃ |
| Working humidity | 20%~80%(No condensation) |
| Storage temperature | -20℃~60℃ |
| Store humidity | 10%~90%(No condensation) |
| Display mode | S-IPS，often black display, transmission |
| Maximum service time (hours/day) | 24 hours |
