Lite for Edu Series | DHI-LPH75-ST420
DHI-LPH75-ST420
75 inch Smart interactive whiteboard
Series Overview
Dahua Deep Hub Smart Interactive Whiteboard for education has powerful processing capabilities with its 4-core CPU and up to 8 GB RAM64G storage capacity. Equipped with a high-precision infrared frame with a 2 mm identification diameter, and a 4K high definition DLED module, this whiteboard will give you an extraordinary experience with writing, controlling the whiteboard and displaying content on it. It features video conferencing, wireless screen sharing, file management, HD display, scan & go, and more AI functions to enhance your experience. You can rely on this whiteboard to modernize your meeting rooms and classrooms.
Functions
4K HD Display
With up to 3840 × 2160 resolution, the 4K HD display delivers a clear image in sharp, vivid colors.
AI Recognition of Drawings
Identifies hand-drawn structures such as straight lines, arrow straight lines, arrow-dotted lines, triangles, parallelograms, trapezoids, rectangles, pentagons, circles, cylinders, pentagrams, semicircles, and ellipse.
File Management
Supports managing and using Office files, image, video and audio files, and file formats such as PDF and TXT.
Screen Down Reachability
The system supports pulling down the screen to 1/3 the full height, to place the entire screen at a reachable distance for you.
- 75-inch 4K DLED display with Zero Air Gap technology that delivers a clear image in sharp, vivid colors. Wireless screen sharing from multiple devices with an intuitive, easy-to-use system.
- 8 physical front buttons for quick access to functions. Smooth writing experience, and AI recognition of drawings. Quick file sharing by scanning a QR code, with easy file encryption for added privacy and security.
- Switches between Android and Windows, and OPS module is optional.
Screen Sharing
The content on your screen can be freely shared with one other device through a wired connection.
Wireless Screen Sharing
In addition to basic file sharing, the device offers wireless screen sharing, interactive operations between two screens, and reverse transmissions. It also supports screen grouping (multiple transmission), host mode (for overall permission control), real-time transmission of images, videos and audios from the wireless camera of the mobile phone to the device, and split-screen mode that displays up to 9 splits on the same screen.
Hidden Antenna Design
The Wi-Fi and hotspot antenna is neatly concealed in the front of the device, ensuring the stability of the signal strength when using a flush mount, and giving the device its simple and sleek appearance.
Similar to Real Writing Experience
The electronic whiteboard supports pen-point writing. It comes equipped with specialized pressure-sensitive writing pens, designed to enhance the writing experience. With its soft, comfortable nib, writing on the whiteboard feels natural, similar to the real writing experience.
Scene
The whiteboard is ideal for indoor sites such as classrooms and meeting rooms.
Technical Specification
Built-in System
| Operating System | Android 14 |
| CPU | Quad-core A55 |
| CPU Frequency | 1.9 GHz |
| GPU | ARM Mali-G52 MP2 (2EE) |
| RAM | 8 GB |
| ROM | 32 GB |
LCD Panel
| Panel Dimensions | 75 inch |
| Backlight | DLED |
| Aspect Ratio | 16:9 |
| Brightness | 400 cd/m² (typ.) |
| Static Contrast | VA: 4000; IPS: 1200 |
| Resolution | 3840 (H) × 2160 (V) |
| Viewing Angle | 178° (H); 178° (V) |
| Lifespan | 50,000 hrs |
| Display Color | 1.07 Billion colors (10 Bit) |
| Response Time | 8 ms (typ.) |
| Refresh Rate | 60 Hz |
Device Ports
| Light Sensor | Yes |
| Front Button | 8 buttons: Whiteboard, volume, curtain, touch lock, signal source, navigation bar, homepage, power supply |
| Front Ports | 1 × Type -C 1 × HDMI IN 1 × USB Touch 2 × USB 3.2 Gen1 Type-A 1 × 3.5 mm Mic in 1 × Type-C (DP IN (4K@60 fps) + USB 3.0 Host +USB 2.0 device (touch) + PD 65 W); supports wired network sharing |
| Rear Port | 1 × Type -C 2 × HDMI IN (4K@60 Hz) 1 × VGA IN 1 × HDMI OUT (4K@60 Hz) 3 × USB Touch 2 × USB3.2 Gen1 Type-A Audio In: 1 × 3.5 mm Line In Audio Out: 1 × SPDIF and 1 × 3.5 mm Line out RS-232: 1 × DB9 port Micro: 1 × USB 2 × RJ-45 1 × OPS slot |
| Wi-Fi | Yes |
| Wi-Fi Standard | 802.11b/g/n/a/ac/ax |
| Wi-Fi Frequency Range | 2.4 GHz/5 GHz |
| MAX Power Transmission (Wi-Fi) | CE EIRP:≤20 dBm@2400–2483.5 MHz; ≤23 dBm@5150–5250 MHz; ≤20 dBm@5250–5350 MHz; ≤27 dBm@5470–5725 MHz; ≤14 dBm@5725–5850 MHz |
| Bluetooth | Yes |
| Bluetooth Standard | EDR, BT2.1/4.2/5.2/5.3 |
| Bluetooth Frequency Range | 2400–2483.5 MHz |
| MAX Power Transmission (Bluetooth) | CE EIRP: ≤20 dBm@2400–2483.5 MHz; |
| RFID Modulation Method | ASK |
| RFID Frequency Range | 13.56 MHz |
| MAX Power Transmission (RFID) | 42 dBuA/m @10 m |
Function
| IR Receiver | 1 |
| Card Swiping with NFC | Yes |
| Wireless Access Point | WIFI 5, 2.4 GHz/5 GHz; Supports enabling Hotsport and WIFi at the same time Wi-Fi 6, 2.4 GHz/5 GHz, supports 802.11 a/b/g/n/ac/ax |
Touchscreen
| Response Time | ＜ 10 ms |
| Touch Technology | Infrared |
| Attachment Method | Zero Air Gap |
| Touch Points | 21 points for Android, and 40 points for Windows |
| Touch Accuracy | ±1 mm (0.04″) |
| Valid Touch | 2 mm (0.08″) |
| Touch Height | 3 mm (0.12″) |
| Writing Mode | Finger and stylus pen |
| Communication Mode | USB |
| Anti-light Interference | Anti-dazzle |
| Surface Hardness | ≥9 H |
| Touch Resolution | 32,767 × 32,767 |
Speaker
| Built-in Speaker | 2 × full-frequency speaker |
| Power | 2.0 sound channel, front-end: 2 × 15 W 2.0 sound channel, front-end: 2 × 20 W |
General
| Power Supply | 100–240 VAC, 50/60 Hz |
| Power Consumption | 75-inch: 150 W (typ.); 275 W (max, without OPS and Quicker Changer） |
| Standby Power Consumption | ≤0.5 W |
| Operating Temperature | 0 °C to +40 °C (+32 °F to +104 °F) |
| Storage Temperature | –10 °C to +50 °C (+14 °F to +122 °F) |
| Operating Humidity | 10%–90% (RH) |
| Storage Humidity | 10%–90% (RH) |
| Product Material | Metal |
| Glass | 4 mm anti-dazzle tempered glass |
| Casing Color (Frame/Rear) | Black frame for left and right, silver frame for top and bottom and black frame for back |
| Product Dimensions | 1,707.5 mm × 121.3 mm × 1,050.0 mm (67.23″ × 4.48″ × 41.34″) (L × W × H) |
| Frame Size | Top frame: 27 mm (1.06″); Left and right frame: 16.5 mm (0.65″); Bottom frame: 68 mm (2.68″) |
| Packaging Dimensions | 1,790.0 mm × 200.0 mm × 1,165.0 mm (70.47″ × 7.87″ × 45.87″) (L × W × H) |
| Net Weight | 49.0 kg (108.03 lb) |
| Gross Weight | 60.5 kg (133.38 lb) |
| Holes Distance | 600 mm × 400 mm (23.62″ × 15.75″) |
| Installation | Wall mount or mobile bracket |
| Packing List | 1 × Smart interactive whiteboard; 1 × Power cord; 2 × Passive stylus pen; 1 × HDMI cabe; 1 × Quick start guide; 1 × Wall mount bracket (already installed on the whiteboard); 1 × Accessory package; 1 × Remote control; 1 × Legal and Regulatory Information |
Certification
| Certifications | CE |
Ordering Information
| Type | Model | Description |
| Smart interactive whiteboard | DHI-LPH75-ST420 | 75 inch Smart interactive whiteboard |
Installation
Dimensions (mm[inch])
Panels
Rev 002.000
© 2024 Dahua. All rights reserved. Design and specifications are subject to change without notice.
Pictures in the document are for reference only, and the actual product shall prevail.
Documents / Resources
 | alhua TECHNOLOGY DHI-LPH75-ST420 Deep Hub Smart Interactive Whiteboard [pdf] User Guide DHI-LPH75-ST420, DHI-LPH75-ST420 Deep Hub Smart Interactive Whiteboard, DHI-LPH75-ST420, Deep Hub Smart Interactive Whiteboard, Hub Smart Interactive Whiteboard, Smart Interactive Whiteboard, Interactive Whiteboard |