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LPH75-ST420-S3 new-products

75 inch Smart interactive whiteboard

> 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.


  • Specifications
  • Accessories
  • Download
  • 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