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Ultra HD Large Multi-Touch Display

  • 84TR3B

Key Features

  • Ultra HD Resolution (3840x2160)
  • 4K Upscaler
  • 10 Point Multi-Touch
  • Ghost-Free Touch (IR Spread)
  • Brightness : 350cd/m2

84 Ultra HD Multi-Touch Signage

The only Ultra HD based (3840 x 2160) touch screen displaying clear & sharp resolution contents with real life picture quality.

Ghost Free Multi-Touch Experience

When touching the screen, it is possible to express your writing or drawing with ‘No Ghosting’ for clean & seamless navigation.

10-Point Multi-Touch Experience

It provides a more realistic sense of touch since it can recognize up to 10 simultaneous touches at once with no need of a separate pen.

Highly Reliable Touch Experience

• Protection Glass with Anti-fog / Anti-glare
• Ghost Free Multi-Touch
* IR Spread : LG ’s own Multi-Touch technology

Screen Size84 (213 cm)
Panel TechnologyIPS
Aspect Ratio16 : 9
Native Resolution3840 x 2160 (UHD)
Brightness350 cd/m2 Typ. (300 cd/m2 with Protection Glass)
Contrast Ratio1,400:1
Max Input Resolution1920 x 1080@60Hz (DVI-D) 3840 x 2160@30Hz (Display Port) 3840 x 2160@60Hz, YCbCr 4:2:0 (HDMI1) 3840 x 2160@60Hz (HDMI2) * HDMI1 : HDCP2.2 support, HDMI2, DP : HDCP1.4 support
Recommended Resolution1920 x 1080@60Hz (DVI-D) 3840 x 2160@30Hz (HDMI1, Display Port) 3840 x 2160@60Hz (HDMI2) * HDMI1 : HDCP2.2 support, HDMI2, DP : HDCP1.4 support
H-Scanning Frequency15 ~ 83kHz (HDMI, DVI-D, Display Port) 112.5kHz, 135kHz (HDMI2)
V-Scanning Frequency24 ~ 76Hz (HDMI, DVI-D, Display Port)
Pixel Frequency148.5MHz (DVI-D, Display Port) 297MHz (HDMI)
Sync CompatabilityDigital
Video InputHDMI1, HDMI2, DisplayPort, DVI/Supersign, Component
Picture modeVivid, Standard, APS, Cinema, Sports, Touch, Expert1/2
Color temperatureWarm, Medium , Cool
Digital (With HDCP)HDMI(Yes(2)),DP(Yes(1))
Digital (w/o HDCP)DVI-D(Yes(1))
AnalogComponentAV (Yes(1))
External ControlRS232C (Yes(1)),LAN(Yes(1)),IR/Light sensor(Yes(1)),Pentray Control(Yes(1))
USBUSB 3.0 : 1, USB 2.0 : 2
HDTV FormatsHDMI, Display Port : 720p, 1080i, 1080p, 2160p (HDMI1 : Up to 60Hz, Other : Up to 30Hz) DVI-D : 720p, 1080i, 1080p
Audio OutYes(1)
Externel Speaker OutYes(1, L/R)
External Control(RS232C)Yes(1)
Physical Specification
Bezel ColorBlack
Bezel Width34.0mm
Monitor Dimension(W x H x D)1951.2mm x 1137.2mm x 111.9mm
Carton Dimensions(W x H x D)205.0cm x 126.1cm x 33.0cm
Packed Weight119.1Kg
VESA™ Standard Mount Interface600 x 400, M8
Temperature SensorYes
Auto Brightness sensorYes
Source SelectionHDMI1, HDMI2, DisplayPort, DVI/Supersign, Component
Input LabelYes(PC/DTV/etc.)
Auto Power/Source MemoryYes
Key LockYes
DPM SelectYes
Energy SavingYes(Auto, Minimum, Medium, Maximum, Screen Off)
Smart Energy SavingYes
File Play with USBYes
Internal Memory8GB(System 4GB + Available 4GB)
Wi-FiDongle ready
4K Up ScalingYes
Operation Temperature0 °C to 40 °C
Operation Humidity10 % to 80 %
Power Supply100-240V~, 50/60Hz , 5.7A
Power TypeBuilt-in Power
Power Consumption Typical / Smart Energy Saving on400W / 30% ±5%
Power Off1W
Audio Power20W(10W x 2) for External Speaker(8Ω)
Speaker On/OffYes
Clear Voice IIYes
Sound modeStandard, News, Music, Cinema, Sports, Game
SafetyUL / cUL / CB / TUV / KC
EMCFCC Class "A" / CE / KCC
Slot PC compatible (optional)Yes (PC500, PC700)
Touch Screen Writing S/WYes
Accessory(TBD)Power Cord, Remote Controller(include battery 2), IR/Light sensor receiver, USB 2.0 Cable, HDMI 2.0 Cable, DisplayPort Cable, Cable Tie(2), Touch Pen(2), PenTray(1), Eye-Bolt Assy(2), Screw Package, ESG
Optional AccessoryMedia Player: MP700/MP500 External Speaker: SP-2100 Pen Tray: KT-WT1
Touch Specifications
Touch TypeIR(Infrared Rays) Spread
Available Object Size for TouchØ6mm
Scan Time10ms
InterfaceUSB 2.0
Protection Glass Thickness5T (Anti-Glare)
Protection Glass Transmission85% (Typ.)
Operating Systme SupportWindows 7, Windows 8, Windows 8.1 (10 Point)
Multi Touch PointMax 10 Point
Touch Resolution1840 x 1050
LG Interactive White Board Software
OSWindows XP / Vista / 7
DrawingPen / Brush / Spray / Eraser / Shape
EditCopy / Paste / Clone / Undo / Redo
Data FormatIntrinsic / PDF / JPG
MediaImage, Audio, Video
App LinkagePowerPoint, Excel, Word, Internet Explorer
E-MailShare writing/drawing data via e-mail
Screen Split2 horizontal Screens
Usage ConveniencePreview / Navigation / Screen Lock
CaptureFull / Window / Automatic Copy & Paste
RecordingFull / Window / Rectangle
ZoomIn / Out (100% ~ 400%)
Writing Space ResizeResize From 1920 x 1080 to 3840 x 2160


Simply choose a support option from the icons below:

Business Resources

To access more technical documentation and downloads, please visit the LG B2B Partner Portal.