LPH75-ST470-C-S3
Dahua LPH75-ST470-C-S3 75-inch Smart Interactive Whiteboard
- Screen size
- 75 inch
- Resolution
- 3840 (H) × 2160 (V)
- Touch
- Infrared
- System
- Android 16.0
The Dahua LPH75-ST470-C-S3 is a 75-inch interactive display with a 4K (3840 × 2160) DLED panel, infrared touch supporting 50 points on Android and on Windows, and an Android 16.0 system with 8 GB RAM and 128 GB storage. Its built-in microphone array and two 20 W speakers suit classrooms and training rooms across Doha and Al Wakrah. Request a quote from SmartRooms Qatar.
What the LPH75-ST470-C-S3 is built around
The Dahua LPH75-ST470-C-S3 is a 75-inch display from the ST470-C Series, aimed at teaching and collaborative meetings. Its 16:9 DLED panel runs at 3840 × 2160 resolution with 400 cd/m² brightness, a 1500:1 static contrast ratio, 90% NTSC colour and a 60 Hz refresh rate. Viewing angles reach 178° both horizontally and vertically, and the panel is rated for at least 30,000 hours.
An Android 16.0 system powers the display, with a quad-core A53 and quad-core A72 processor at a 2.2 GHz main frequency, 8 GB of RAM and 128 GB of ROM. An external module supports Windows 11 or Android, so teachers and staff can run Windows software on the same screen when their lessons require it.
Touch, glass and sound for lessons and meetings
Infrared touch uses a zero air gap attachment behind 3 mm anti-dazzle tempered glass with surface hardness of 9H or more. The touchscreen registers 50 points on Android and 50 on Windows, with a valid touch of 1.5 mm and ±0.5 mm accuracy across 90% of the area. Writing works with a finger or the magnetic stylus, and two stylus pens are included.
Built-in audio combines two mid-high frequency speakers rated 2 × 20 W across 150 Hz to 20 kHz with an eight-array microphone that picks up voices from 0.5 m to 8 m. Automatic gain control, echo cancellation and intelligent noise filtering help in a standard classroom or meeting room, where it may remove the need for a separate sound set. Test larger halls before deciding.
Ports and wireless options to plan
- Front: one TYPE-C port, two USB 3.0 ports, one HDMI IN, one touch port
- Rear: HDMI OUT, two HDMI IN, DP IN, Type-C IN, two RJ-45 ports, two USB 3.0 and one USB 2.0
- Other: SPDIF OUT, RS-232, line in and line out, VGA with VGA audio input, and an SD card slot up to 512 GB
- Wireless: Wi-Fi 6 with access point mode, Bluetooth 5.4, NFC and 13.56 MHz RFID
Where it fits in Qatar
A private school in Al Wakrah fitting out new classrooms would use the 75-inch size on the front wall of a standard room. The 4K resolution keeps small text in both Arabic and English materials readable from the back row, and the front ports let a teacher connect a laptop without moving around the board.
A meeting room in West Bay used for project reviews and calls with teams abroad can use the rear HDMI and DP inputs for a laptop or conferencing system, with a wired RJ-45 connection for the network as an alternative to Wi-Fi 6.
A government office in Doha setting up a training room would order through a purchase order or tender and plan the wall position around daytime light, since brightness and glass finish matter in bright rooms.
What to plan before ordering
The panel weighs 48.6 kg net and 57.3 kg gross, measures 1,707.6 × 115.7 × 1,067.2 mm and uses a 600 × 400 mm mounting hole pattern. Two people should lift it, and a free site survey will confirm that the wall and the lift route can take it. The box includes a wall mount bracket; the data also lists a mobile bracket, so state your preferred mounting in your request.
The operating range is 0 °C to +40 °C with 0–93% humidity, and the IP20 rating means indoor use only. In Doha summer conditions, keep the panel out of direct sunlight and confirm that the room's air conditioning holds it within range. Power is 100–240 VAC, 50/60 Hz, with 120 W typical and 350 W maximum consumption, and standby no higher than 0.5 W. The manufacturer's warranty applies to the product.
Send your room dimensions, wall type and intended use, and request a quote. SmartRooms Qatar offers free site surveys, delivery to all eight municipalities of Qatar, professional installation and quotations usually within one working day.
Highlights
- 75-inch 4K (3840 × 2160) DLED panel, 16:9 aspect ratio
- Infrared touch with 50 points on Android and Windows
- Android 16.0 with 8 GB RAM and 128 GB ROM
- 8-array microphone with echo cancellation and noise filtering
- Two 20 W front speakers, 150 Hz to 20 kHz
- Wi-Fi 6, Bluetooth 5.4, NFC and RJ-45 network port
Classroom fit
At 75″ the farthest student should sit within about 5.6 m (6× the screen height).
Estimated timeline
Quotation within 1 working day · delivery timing depends on stock availability, and we confirm it with your quotation.
Specifications
Built-in System6
- Operating System
- Android 16.0
- CPU
- Quad-core A53 + quad-core A72
- CPU Frequency
- Main frequency 2.2 GHz
- GPU
- Mali-G52 MC3
- RAM
- 8 GB
- ROM
- 128 GB
General20
- Operating System of External Module
- Windows 11; Android
- Power Supply
- 100–240 VAC, 50/60 Hz
- Power Consumption
- 120 W (basic), 350 W (max)
- Standby Power Consumption
- ≤0.5 W
- Operating Temperature
- 0 °C to +40 °C (+32 °F to +104 °F)
- Storage Temperature
- –20 °C to +60 °C (–4 °F to +140 °F)
- Operating Humidity
- 0%–93%, 101 kPa
- Storage Humidity
- 0%–93%, 101 kPa
- Protection
- IP20
- Product Material
- Metal casing
- Glass
- 3 mm anti-dazzle tempered glass
- Casing Color (Frame/Rear)
- Black on the left and right, dark blue on the top and bottom
- Product Dimensions
- 1,707.6 mm × 115.7 mm × 1,067.2 mm (67.23" × 4.56" × 42.02")
- Frame Size
- Top frame: 40.9 mm (1.61"); Left and right frame: 17.5 mm (0.69"); Bottom frame: 65.3 mm (2.57")
- Packaging Dimensions
- 1,875.0 mm × 227.0 mm × 1,177.0 mm (73.82" × 8.94" × 46.34") (L × W × H)
- Net Weight
- 48.6 kg (107.14 lb)
- Gross Weight
- 57.3 kg (126.32 lb)
- Holes Distance
- 600 mm × 400 mm (23.62" × 15.75")
- Installation
- Wall mount or mobile bracket
- Packing List
- 1 × Smart Display 2 × Stylus Pen 1 × Wall Mount Bracket 1 × Global Laws and Regulations Manual 1 × Wireless Plug-in Module 1 × Power Cord 1 × Quick Start Guide 1 × Expansion Tube and Expansion Screw Set 1 × Remote Control
LCD Panel11
- Screen Size
- 75 inch
- Backlight
- DLED
- Aspect Ratio
- 16:9
- Brightness
- 400 cd/m²
- Static Contrast Ratio
- 1500:1
- Resolution
- 3840 (H) × 2160 (V)
- Viewing Angle
- 178° (H)/178° (V)
- Lifespan
- ≥30,000 hrs
- Display Color
- 90% NTSC
- Response Time
- ≤8 ms
- Refresh Rate
- 60 Hz
Device Ports17
- Light Sensor
- 1
- Front Button
- 8 buttons: Custom Volume - Volume + Curtain Touch lock Signal source Home Power supply
- Front Ports
- 1 × TYPE-C port 2 × USB 3.0 port 1 × HDMI IN port 1 × Touch port
- Rear Port
- 1 × HDMI OUT port 2 × HDMI IN ports 2 × Touch ports 1 × USB 2.0 port 2 × RJ-45 ports 1 × Type-C IN port 1 × DP IN port 2 × USB 3.0 port
- SD Card Slot
- 1 × SD card slot, up to 512 GB
- Others
- 1 × SPDIF OUT port 1 × RS-232 port 1 × LINE OUT port 1 × LINE IN port 1 × VGA AUDIO IN port 1 × VGA IN port 1 × Touch port
- Wi-Fi
- Yes
- Wi-Fi Standard
- 802.11b/g/n/a/ac/ax
- Wi-Fi Frequency Range
- 2400-2483.5 MHz,5150-5350 MHz,5470-5725 MHz,5725-5850 MHz
- MAX Power Transmission (Wi-Fi)
- ≤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
- BR/EDR/BLE (Bluetooth mode), BT5.4
- Bluetooth Frequency Range
- 2400-2483.5 MHz
- MAX Power Transmission (Bluetooth)
- ≤20 dBm@2400-2483.5 MHz;
- RFID Modulation Method
- ASK
- RFID Frequency Range
- 13.56 MHz
- MAX Power Transmission (RFID)
- 13.56 MHz: 42 dBuA/m @10 m
Function3
- IR Receiver
- 1
- NFC
- 1 × NFC
- Wireless Access Point
- Wi-Fi 6, 2.4 GHz/5 GHz; supports 802.11a/b/g/n/ac/ax
Touchscreen11
- Response Time
- ≤1.67 ms
- Touch Technology
- Infrared
- Attachment Method
- Zero Air Gap
- Touch Points
- Android: 50 points Windows: 50 points
- Touch Accuracy
- ±0.5 mm (covers 90% of the area)
- Valid Touch
- 1.5 mm (0.06")
- Writing Mode
- Finger and stylus pen (magnetic)
- Communication Mode
- USB
- Anti-light Interference
- Anti-dazzle tempered glass
- Surface Hardness
- ≥9H
- Touch Resolution
- 32767 × 32767
Speaker3
- Built-in Speaker
- 2 mid-high frequency speakers
- Power
- 2.0 sound channel, front-end 2 × 20 W
- Frequency
- 150 Hz–20 kHz
Microphone6
- Microphone
- 8 arrays
- Pick-up Distance
- 0.5 m-8 m (1.64 ft–26.25 ft) pickup
- AGC
- Yes
- Echo Cancellation
- Yes
- Polar Pattern
- Omnidirectional
- Intelligent Noise Filtering
- Yes
Certification1
- Certifications
- CE, CB, EDLA