Key Features :
LCD, 3300 lumens, WXGA
Short-throw projector with interactive functionality to write on the projected image with an interactive pen/pointer
20 000 hours lamp replacement cycle in Eco mode
Projects 80 inch screen from a distance of only 80cm
16 000: 1 contrast ratio
Interactive Functions Let You Write on a Projected Image
You can write or draw figures on the projected image with the Interactive Pen/Pointer.* In addition, two users can write simultaneously** to make classes and presentations more effective. It is also easy to store the words and figures in a computer for information sharing.
Benefits of the interactive functions
You can write notes and point out information on the screen with the interactive pen/pointer
During presentations, you can operate the computer by using the itneractive pen/pointer on the projected surface
No need for dedicated interactive whiteboards
Youn can instantly store the decisions made during meetings and share them with others
Whiteboard Software* Extends Your Capabilities
In addition to LightPen software, you can use Panasonic's dedicatedWhiteboard software for Windows.* Whiteboard software* is compatible with Panasonic's interactive-ready projectors and professional displays**, and lets you use the interactive function.
A maximum 20.000 hour *1 lamp replacement cycle and 10.000 hour *2 air filter replacement cycle
The PT-TW381R Series has a maximum lamp replacement cycle of 20,000 hours.*1 The air filter also has a
replacement cycle of 10,000 hours.*2 This reduces maintenance hassles for long periods of use, and helps to lower
maintenance costs and reduce environmental impact.
Lamp ControlReplacment cycle of lamp and air filter
Ease of installation
Corner keystone correction enables angled projection
All you need to do is designate for points as the corner of the projected image,
and this function easily carries out horizontal and vertical keystone correction.
Curved screen correction
Barrel and pincushion distortions are easily corrected when projecting
onto a curved screen.
Easy remote monitoring and control over a LAN
Web browser on a computer connected through a wired LAN system lets you remotely operate projectors and check their status.
In addition, Multi Monitoring and Control Software is available for monitoring and controlling multiple Panasonic projectors from a single PC.
The wired LAN terminal is compatible with PJLink™ (class1), an open protocol that is used by many manufacturers, to enable integrated control of systems that contain different brands of projectors.
Easy lamp and air filter replacement simplifies maintenance
For easier maintenance, you can replace the lamp from the top and the air filter from the side, even after the projector is installed on the ceiling. This eliminates the need to detach the projector from its mounting bracket in ceiling-mounted applications.
Multiple useful features
Easy wireless projection by optional module
Simply inserting the optional ET-WML100 Wireless Module into the USB port on the projector enables easy wireless projection from Windows PCs, iOS devices, or Android devices on which the proper freeware is installed.
Presenter Light for Windows® PCs
• Pictures, videos, and any documents including PDF files/Power Point files, whatever are displayed on the PC screen can be projected.
• The images from up to four PCs can be projected simultaneously.
For more information about Presenter Light software or to download the software, please visit the software download page.
VueMagic™ Pro* for iOS/Android Devices
• Pictures, some documents including PDF files can be projected.
• Live camera mode / Annotate mode can be used.
• The images from up to four devices can be projected simultaneously.
Memory viewer function
In addition to JPEG/BMP image and text files, PDF files can be projected by simply inserting a USB memory device containing the data into the USB memory port. Now you can start your presentation without having to connect to a computer.
Dimensions (W x H x D)335 x 134.1*4 x 329 mm (13 3/16˝ x 5 9/32˝*4 x 12 15/16˝ )
Power Consumption300 W
LensFixed zoom, manual focus lens, F = 1.8, f = 6.08 mm, throw ratio: 0.46:1 (Projection distance: 0.80 m [2.62 ft] for 80-inch image)
Resolution1280 x 800 pixels
Operating EnvironmentOperating temperature*6 : Normal use: 5–40 °C (41–104 °F) at altitudes less than 1,400 m (4,593 ft); 5–35 °C (41–95 °F) at altitudes of 1,400–2,700 m (4,593–8,858 ft); Operating humidity: 20–80 % (No condensation)
Keystone Correction RangeVertical: ±15 ° (Auto, Manual), Horizontal: ±15 ° (Manual)
Applicable SoftwareMulti Monitoring & Control Software, Early Warning Software, Logo Transfer Software,Presenter Light Software (for Windows®)*7 , Wireless Projector for iOS/Android™*8 , LightPen3 Software for Windows/Mac, Whiteboard Software (for Windows)
Contrast Ratio*120,000:1 (All white/all black, Iris: On, Image mode: Dynamic, Daylight View: Off, Lamp control: Normal)
Power SupplyAC 100–240 V, 50/60 Hz
Light Source230 W x 1 lamp
Terminals | LANRJ-45 x 1 for network connection, 10Base-T/100Base-TX, PJLink™ (Class 2) compatible
Light output3,300 lm
Operation noise*1Normal: 38 dB, Eco: 35 dB, Quiet: 30 dB
Projector typeLCD projector
Screen size [diagonal]1.27–2.54 m (50–100 in), 16:10 aspect ratio
Center-to-corner zone ratio*185 %
Note*1 Measurement, measuring conditions, and method of notation all comply with ISO/IEC 21118: 2020 international standards. Value is average of all products when shipped. *2 Lamp replacement cycle stated is maximum value, at which time brightness will have decreased to 50 %. Usage environment affects lamp replacement cycle. *3 ET-WML100 Series and AJ-WM50 Series devices are both compatible with all projectors in this series, and either can be used to enable the wireless network function. *4 With legs at shortest position. *5 Average value. May differ depending on the actual unit. *6 When [LAMP POWER] is set to [NORMAL] and the projector is operated at an elevation of 1,400 m (4,593 ft) or less, if the ambient temperature exceeds 35 °C (95 °F), [LAMP POWER] will be switched to [ECO] automatically to protect the projector. When [LAMP POWER] is set to [NORMAL] and the projector is operated at an elevation between 1,400 m (4,593 ft) and 2,700 m (8,858 ft), if the ambient temperature exceeds 30 °C (86 °F), [LAMP POWER] will be switched to [ECO] automatically to protect the projector. *7 When using Presenter Light Software, images are projected with 1280 x 800 dots or 1024 x 768 dots onto the screen. Also, your PC display resolution may be forcibly changed, and audio playback disrupted or become noisy, while images and sound are being transmitted. *8 When using the Wireless Projector app, display resolution differs depending on your iOS/Android ™ device and the display device. The maximum supported display resolution is WXGA (1280 x 800).
Terminals | Computer 1 InD-sub HD 15-pin (female) x 1 [RGB/YPBPR/YC]
Terminals | Video InPin jack x 1
Terminals | Audio In 1M3 (L,R) x 1
Terminals | Serial InD-sub 9-pin (female) x 1 for external control (RS-232C compatible)
Terminals | Audio OutM3 (L,R) x 1 (Variable)
Terminals | Computer 2 In/1 OutD-sub HD 15-pin (female) x 1 [RGB/YPBPR] (Input/output switching)
LCD Panel | Panel Size15.0 mm (0.59 in) diagonal (16:10 aspect ratio)
LCD Panel | Number of pixels1,024,000 (1280 x 800 pixels) x 3
Built in Speaker10 W monaural
Terminals | Audio In 2Pin jack x 2 (L,R)
Filter Replacement CycleNormal: 5,000 h/Eco: 6,000 h/Quiet: 10,000 h
Lamp replacement cycle*2Normal: 10,000 h/Eco: 20,000 h/Quiet: 10,000 h
Terminals | USBUSB Type-A (for Memory Viewer/Wireless Module [ET-WML100/AJ-WM50 series*3 ]/Power supply [DC 5 V/2 A])
Terminals | Mini USBx 1 (Mini-USB connector for interactive function)
Terminals | HDMI In 1/HDMI In 2HDMI 19-pin x 2 (Compatible with HDCP 1.4, Deep Color), Audio signal: Linear PCM (Sampling frequencies: 48 kHz, 44.1 kHz, 32 kHz)
Weight*5Approx. 3.9 kg (8.6 lbs)