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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

Short-throw interactive projector. 20 000 hours lamp replacement cycle

  PT-TW381R PT-TW380 PT-TX440 PT-TX350
Brightness 3.300 lumens 3.300 lumens 3.800 lumens 3.200 lumens
Contrast Ratio 16.000:1 16.000:1 16.000:1 16.000:1

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.

* Interactive Pointer available as an option, ** Available for Windows® operating system.

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 Control Replacment cycle of lamp and air filter
Eco 20.000 hours
Normal 10.000 hours

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.


* Supported by Windows® 7 and Windows® 8. Please note that some functions that can be used on professional displays cannot be used on projectors. And the SPDriver setting should be set to "Touch mode". ** Multi-touch Screen LED Display : LFB70 and BF1 Series (TH-50LFB70/65LFB70/80LFB70 and TH-50BF1/ TH-65BF1/ TH-80BF1)

*1 This is the maximum value when the lamp power is set to Eco2. The usage environment affects the lamp replacement cycle, *2 The usage environment affects the duration of the filter.

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.

* VueMagic™ Pro is a product of Pixelworks, Inc. For detailed information, refer to the following website.

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.

Show more

  • Brochures
  • PT-TW381R Series Catalog PDF (English)
    Catalog PDF: PT-TW381R/TW380/TX440/TX350 (English)
Image Data
Spec Files

Service and Support
  • PT-TW381R Series Catalog PDF (English)
    PT-TW381R Series Catalog PDF (English)
    Catalog PDF: PT-TW381R/TW380/TX440/TX350 (English)
    Fri, 28/02/2020 - 09:22
    Download pdf - 1.8 MB

Please see below the services available for this product. You can also use this section to access the general Service & Downloads area of the website or contact our Technical Support team.

General service & downloads Contact technical support

Please see below the services available for this product. You can also use this section to access the general Service & Downloads area of the website or contact our Technical Support team.

General service & downloads Contact technical support

There are currently no key services available.

Please see below the services available for this product. You can also use this section to access the general Service & Downloads area of the website or contact our Technical Support team.

General service & downloads Contact technical support

There are currently no other services available.

Dimensions (W x H x D) 335 x 134.1*3 x 329 mm (13 3/16˝ x 5 9/32˝ *3 x 12 15/16˝ )
Power Consumption 300 W
Lens Fixed zoom, manual focus lens, F = 1.8, f = 6.08 mm,throw ratio: 0.46:1 (Projection distance: 0.79 m [2.59 ft] for 80-inch image)
Resolution 1280 x 800 pixels
Operating Environment Operating temperature: 5–40 °C (41–104 °F), operating humidity: 20–80 % (no condensation)
Keystone Correction Range Vertical: ±15 ° (Auto, Manual), Horizontal: ±15 ° (Manual)
Installation Ceiling/floor, front/rear
Cabinet Materials Molded plastic
Applicable Software Multi Monitoring & Control Software, Presenter Light Software (for Windows®), Wireless Projector
Contrast Ratio*1 20,000:1 (All white/all black, Iris: On, Image mode: Dynamic, Lamp control: Normal)
Power Supply AC 100–240 V, 50/60 Hz
Light Source 230 W x 1 lamp
Terminals | LAN RJ-45 x 1 for network connection, 10Base-T/100Base-TX, PJLink™ (Class 1) compatible
Terminals | HDMI In HDMI 19-pin x 2 (Compatible with HDCP 1.4, Deep Color), Audio signal: Linear PCM (Sampling frequencies: 48 kHz, 44.1 kHz, 32 kHz)
Light output 3,300 lm
Operation noise*1 Normal: 38 dB, Eco: 35 dB, Quiet: 30 dB
Projector type LCD projector
Screen size [diagonal] 1.27–2.54 m (50–100 in), 16:10 aspect ratio
Center-to-corner zone ratio*1 85 %
Note *1 Measurement, measuring conditions, and method of notation all comply with ISO 21118 international standards. *2 Lamp replacement cycle stated is maximum value, at which time brightness will have decreased to 50 %. Usage environment affects lamp replacement cycle.*3 With legs at shortest position. *4 Average value. May differ depending on the actual unit.
Terminals | Computer 1 In D-sub HD 15-pin (female) x 1 [RGB/S-Video/YPB(CB)PR(CR)]
Terminals | Video In Pin jack x 1
Terminals | Audio In 1 M3 (L,R) x 1
Terminals | Serial In D-sub 9-pin (female) x 1 for external control (RS-232C compatible)
Terminals | Audio Out M3 (L,R) x 1 (Variable)
Terminals | Computer 2 In/1 Out D-sub HD 15-pin (female) x 1 [RGB]
LCD Panel | Panel Size 15.0 mm (0.59 in) diagonal (16:10 aspect ratio)
LCD Panel | Display Method Transparent LCD panel (x 3, R/G/B)
LCD Panel | Drive Method Active matrix method
LCD Panel | Number of pixels 1,024,000 ( Number of pixels 1280 x 800 pixels) x 3
Built in Speaker 10 W monaural
Terminals | Audio In 2 Pin jack x 2 (L,R)
Filter Replacement Cycle Normal: 5,000 h/Eco: 6,000 h/Quiet: 10,000 h
Weight*4 Approx. 3.9 kg (8.6 lbs)
Lamp replacement cycle*2 Normal: 10,000 h/Eco: 20,000 h/Quiet: 10,000 h
Terminals | USB USB Type-A (for Memory Viewer Light/Wireless Module [Output 5 V/2 A])
Terminals | Mini USB x 1 (for Interactive function)