Bright, high-resolution and reliable 3LCD laser projector

Class-leading, high-value 3LCD laser projector
Christie LWU755-DS Bright, high-resolution and reliable 3LCD laser projector

Christie LWU755-DS

Part Number: 121-057103-XX (Black), 121-062109-XX (White)

WUXGA resolution, 3LCD, laser illumination

Coming in brighter, smaller and more energy efficient than the competition, the Christie LWU755-DS is an affordable, mid-brightness 3LCD laser projector designed for small-to-medium applications. Delivering 7,550 lumens and 4,000,000:1 contrast ratio in stunning WUXGA resolution, this projector displays a variety of content types in spectacular detail.

Designed for easy operation, the LWU755-DS includes features like built-in edge blending and warping, advanced color management, and the LiveViewer application for easy content sharing. Small, light and compact and featuring omnidirectional capabilities, this projector is easy to install in tight spaces and blends into any environment.

Key features

  • High-quality image performance – 7,550 ISO lumens, WUXGA resolution, 4,000,000:1 contrast ratio produce amazing visuals
  • Accepts 4K@60Hz signal input – Improved viewing experience with 4K UHD devices
  • Low-profile, lightweight and quiet design – Can be discretely installed in any setting
  • Built-in edge blending and warping with color adjustment – Manual or automatic camera-based adjustments for quick and easy projector setup of up to 12 projectors on corners, flat and cylindrical surfaces
  • Advanced color management – Make adjustments to six colors independently
  • Omnidirectional – Increased installation flexibility
  • Full lens suite – Seven lenses to choose from including UST
  • Flexible connectivity – Comprehensive I/O options including HDBaseT
  • Unbeatable warranty – Five-year or 15,000-hour warranty (whichever occurs first)
  • LiveViewer – Easily share audio and video content directly from your computer or laptop to your projector via your Local Area Network or wirelessly (optional USB dongle required)
  • Compatible with Extron and AMX – Easy direct display connection and quick setup
  • Christie ScholarTech applicable – Enjoy even more price savings when you purchase through the Christie ScholarTech program
  • HDMI Loop-Through – Allows HDMI input signal (up to 4K@60Hz) to be passed on to other DS Series projectors, without the need for a distribution amp/splitter


Brightness (lumens)

  • ISO - 7​550
  • ANSI - 70​00​


  • 4​,0​​00,000:1
Display technology


  • 0.76​​" 3LCD

Native Resolution

  • 1920 x 1200 WUXGA (2,304,0​00 pixels​)


  • Solid state laser​: blue laser diodes ​(30LD) 71W​

Typical lifetime

  • 20,000 hrs (normal mode)
  • up to 50,000 hrs ​(Long Life 2 mode w/50% illuminance​)
​Image adjustment​

Throw distance @ 100' image size

  • 0.84m to 18.1m depending on optional lense


  • Motorized (with zoom lens)


  • Motorized (with zoom lens)

Lens shift​

  • Motorized (with zoom lens)

Screen size

  • 30"-600" depending on optional lens

Keystone correction

  • Vertical/horizontal and 3D keystone (PerfectFit​)
Displayable scanning frequency

Scan rates

  • Horizontal: 31.5-106kHz
  • Vertical: 56-120Hz

Max pixel clock rates

  • 162 MHz (1600 x 1200) and, 154 MHz (1920 x 1200)
Signal Inputs

Digital Input

  • HDMI1 (2.0b w/HDCP 2.2​)
  • HDMI2 (1.4b w/HDCP 1.4 compatible)
  • DisplayPort
  • HDBaseT x1

Computer Input

  • Mini-D-sub 15-pin connector x 1

Video Input

  • RCA connector x 1

Audio Input

  • Audio Input: 3.5mm stereo mini connector x 1
  • RCA connector (L/R x1)
Signal Outputs
  • HDMI out x 1
  • Monitor out: M​ini-D-sub 15-pin connector x 1
  • Audio output 3.5mm stereo mini connector x 1
Control and networking
  • D-sub 9-pin connector x 1 (RS-232C)
  • RJ45 port x 1
  • Wired remote control In/Out
  • 3.5mm mono miini connector x 1
  • USB type A x 1 (Used for wireless network)
  • HDBaseT x 1
Power requirements

Operating voltage

  • 100-120VAC @ 50/60Hz
  • 220-240VAC @ 50/60Hz

Maximum Power consumption

  • 520W + 10% or less @ 100-120 VAC
  • 500W + 10% or less @ 220-240 VAC
  • Standby mode: 0.5W

Operating current

  • 5.4A + 10% or less @ 100-120 VAC
  • 2.7​A + 10% or less @ 220-240 VAC
Operating environment


  • 0–5,249ft: 0-45°C (Dimming at 35-45°C)
  • 5,250–10,000ft: 0-40°C (Dimming at 30-35°C)


  • 10-80%RH (non-condensing), 0-10,000ft
Audible noise
  • Normal​ mode: 36dB
  • Eco mode: 32dB


  • (LxWxH) 17.5 x 23.0 x 9.1" (444 x 585 x 232mm) ±1mm with lens removed

Shipping size

  • (LxWxH) 22.1 x 29.3 x 12.4" (561 x 743 x 315mm)+2%


  • 40.3lbs (18.3kg) with lens removed

Shipping weight

  • 50.9lbs (23.1kg) includes packaging
Key features
  • 4K/60p Video signal compatible - up to (4096 x 2160) @60Hz 4:4:4
  • 4K/60p Enhanced data signal compatible - up to 4K/60p (4:4:4, 4:2:2, 4:2:0)
  • Warp and Edge Blending (flat, cylinder, corner; automatic camera-based or manual; up to 12 projectors; auto and manual screen fitting)
  • Color Management (adjust six colors independently; adjust hue/saturation/luminance)
  • HDMI out allows looping of 4K/60p signals up to 4 projectors • HDBaseT • AMX and Crestron connnectivity • Extron XTP certified
  • PJLink Class 2 • DICOM simulation mode • HDCR • Picture-in-Picture/Picture-by-Picture • 3D Keystone • Portrait and 360° projection
  • Picture-in-Picture/Picture-by-Picture
  • Security controls • Dual-band (2.4 and 5GHz) wireless support (w/optional USB wireless stick)
  • SNMP for failure/warning status and projector information • Scheduling capability
Network features
  • Projector monitoring (wired LAN)​
  • ​Control from a remote location (wired LAN)​
  • E-mail alerts (Wired LAN)​
  • Mirroring of PC screen (using the LiveViewer software)​
  • Infrastructure mode (wireless LAN)​
  • Simple Access point (SoftAP)​
  • SNMP management (SNMP)​


  • Power Cable 1.8m (L type)
  • Computer cable (1.8m)
  • Lens cover and cap
  • IR remote controller without 2 AA batteries
  • HDMI-DVI adapter cable (003-004366-XX)
  • Terminal cover (small)
  • Terminal cover (large)


  • USB wireless adapter
  • Remote control
  • Wired remote controller
  • Filter set (003-006612-XX​)
  • This product conforms to all relevant safety, EMC, and environmental standards that allow sales to US, Canada, EU, Korea, Russia, Australia, and Kuwait
  • Five years or 15,000 hours on the projector (whichever occurs first)

Due to constant research, specific​ations and features are subject to change without notice.​​​