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LG TR3DJ-B vs. BenQ Board RP Series

  • BenQ
  • 2021-08-04

Two of the world’s largest display brands both offer interactive classroom displays to replace Smart and Promethean whiteboards. So how do they stack up for everyday classroom use?


LG is one of the world’s largest television brands in the world, and BenQ is one of the largest commercial TV and projector companies in the world.  As schools transition from interactive whiteboards to interactive displays, IT managers are looking at alternatives to the traditional proprietary whiteboards from Smart and Promethean. The BenQ RP Series and the LG TR3DJ-B are the latest offerings from both companies for classroom interactive displays, so how do these latest models compare?  

Here are the key elements to review:

Display Brightness and Contrast


A display that is easy to read is a key feature in any classroom display.  District technology professionals know that brighter displays with high contrast ratios are easier for students to read – especially from the back of the room.  


The BenQ RP Series is over 20% brighter than the LG – and delivers higher contrast for easy to read text.  Also – LG has a lower expected lifespan than the BenQ, so schools may need to replace it sooner.

Specification

BenQ Board RP02 - 75'

LG TR3DJ-B – 75”

Specification

Brightness

BenQ Board RP02 - 75'

450 nits

LG TR3DJ-B – 75”

330 nits

Specification

Dynamic Contrast

BenQ Board RP02 - 75'

40,000:1

LG TR3DJ-B – 75”

1100:1

Specification

Expected Life

BenQ Board RP02 - 75'

50,000 hours

LG TR3DJ-B – 75”

30,000 hours

In-Person & Remote Whiteboard Functionality

Interactive displays are the ideal teaching platform for a hybrid classroom.  With the ability to run a Zoom or Team app directly from the display, as well as record and share lessons, these displays are far more functional than a projector or generic television display.  So what are the functional whiteboard features you want to look for when comparing these two displays?

Touch Sensor Technology: BenQ Fine IR vs. Samsung IR

To better simulate the experience of using a real marker, the best interactive displays depend on sensitive IR touch systems that are optically bonded to the glass, This delivers a smoother, more intuitive writing experience.  The BenQ system is called “FineIR,” Promethean’s system is called Vellum, while the SMART version of this is called HyprTouch.  The LG TR3DJ-B uses a traditional IR sensor system similar to the BenQ RM or RE interactive displays.  

Whiteboard Object Recognition


Both models recognize 20 points of touch using the Android systems built into the display, palm eraser recognition, and can recognize inputs from both pens and fingers.  The BenQ display can also support variable width input devices – such as a regular paintbrush.  This is ideal for drawing non-Latin characters such as Kanji or Arabic characters, as well as for illustrations.

In-Person vs Cloud Whiteboarding

Classroom and commercial environments are quite different, and many schools believe that cloud-based whiteboarding was an important innovation – even before the Covid-19 pandemic hit.
  


BenQ is notable for having developed the world’s first dynamic cloud whiteboarding system in a classroom touch panel. With the teacher in the classroom, students can interact with the board in real-time via their device at home, making it easy for remote tutoring or coaching.  For example, the teacher can send a link or a QR code and broadcast directly from the board to a student's Chromebook or iPad logged into their home network.  The teacher can also allow the student to interact directly on the board with the device with a single tap on the whiteboard – say to allow the student to solve the math problem on the board.   Since the system is network agnostic, it enables unprecedented flexibility to both teachers and students that complement other classroom systems such as Zoom or Teams.  Powerful cloud whiteboarding features like this are why BenQ’s RP series is the world’s most awarded education touch display.  There are no additional licensing fees for this software for the life of the display.


The LG TR3DJ-B does not come with any cloud-based whiteboarding software.  The LG Air Class software will mirror the screen to a student laptop – but it must be on the same network.  This is impractical for remote learning, and can have an adverse impact on the school bandwidth.

Whiteboard Functionality

BenQ Board RP02 – 75”

LG TR3DJ-B – 75”

Whiteboard Functionality

Touch Sensor

BenQ Board RP02 – 75”

Premium Zero Bond Optical Touch Sensor

LG TR3DJ-B – 75”

IR Sensor

Whiteboard Functionality

Shape Recognition

BenQ Board RP02 – 75”

Palm Eraser

Paintbrush width recognition for calligraphy / non-Latin Characters

LG TR3DJ-B – 75”

Palm Eraser

 

Whiteboard Functionality

Cloud Whiteboarding

BenQ Board RP02 – 75”

Included at no cost

LG TR3DJ-B – 75”

None

Classroom and Lesson Recording Functionality

The ability to record, store and replay lessons to students who are not in the classroom is a key element in improving student performance in hybrid classrooms.  Why?  If a student misses a day or two of Geometry class – it could take a long time to catch up to the rest of the class.  These two interactive displays have the right hardware, software, and networking architecture for recording a classroom lesson - but what should you look for to ensure your teachers can easily store and share their lessons?

How easy is it to record the lesson from the interactive display?

The best interactive displays make it simple to record any lesson – at any time – using any software running on the panel – and store that lesson anywhere on the school network or the cloud.  

The BenQ RP interactive display enables instant recording directly on the board from any application with a single two-finger tap.  This enables a teacher to record any lesson – without having to open another application.  Just tap the screen and hit record – that simple.  This system has been tested with private and public schools around the world for years to learn how to make it easier for teachers to record their classes.


The LG TR3DJ-B does not come with any classroom recording software.  

Array Microphone and Speakers


Teachers have known the most effective lessons combine both visual and audio information. So how well do the BenQ RP and LG displays capture the teacher’s voice for lesson recording?


The BenQ RP series display comes with a bi-directional 8-microphone array built-in capable of recording the teacher’s voice from 15 feet away. This system has advanced sound recognition software similar to a smartphone that cancels out background noise and “follows” the teacher as they move around the room.  This bi-directional technology also enables a teacher to record simultaneously with other audio sources, such as commenting on a YouTube video running on the display.


The LG TR3DJ-B does not have any microphone system included in the display.  

Classroom and Lesson Recording

BenQ Board RP02 

LG TR3DJ-B

Classroom and Lesson Recording

Recording method

BenQ Board RP02 

Simple Two Finger Tap

LG TR3DJ-B

No recording software included

Classroom and Lesson Recording

Integrated Microphone

BenQ Board RP02 

8 microphone array built-in

LG TR3DJ-B

No microphone included

Classroom and Lesson Recording

Speakers

BenQ Board RP02 

32 Watt Soundbar

15 Watt Subwoofer

LG TR3DJ-B

24 Watt Soundbar

 

Teacher & Student Safety Features

In 2020, the COVID-19 pandemic created a new paradigm for schools and elevated the need for student and teacher safety.   BenQ has been integrating key safety features into their displays since 2017, and the latest models from BenQ RP Series and LG TR3DJ-B have a variety of safety features that school administrators are looking for.   Here is a breakdown of the important safety features on each display.

Tempered Glass with Anti-Glare coating

Both LG and BenQ displays feature heat-tempered hardened glass, that is designed to withstand a significant impact from an errant football or elbow, and will shatter into small pieces if broken to reduce the hazard of a student suffering a deep cut on exposed glass.   Both screens are treated to reduce glare.  

Anti-Microbial Coatings


Antimicrobial coatings are used to keep germs from growing on the display glass.  This feature has been available from BenQ since 2018 and is also available on other brands of interactive displays.  The BenQ RP series has been certified by Europe’s TUV against the five most common types of bacteria, including e. Coli, Salmonella, and pneumonia.  The BenQ display is also certified as classroom safe and toxin-free under Japan’s SIAA standard tests for potential risks such as long-term touch and oral toxicity.


The LG TR3DJ-B does not have any anti-microbial coatings on the glass.

Blue Light Protection

The BenQ RP Series interactive displays come standard with third-party certified blue light filtering features built-in. The sensor on the BenQ’s display senses when a teacher or student approaches the display – will adjust the blue light automatically, minimizing the risk to students and teacher from excessive blue light exposure.


The LG TR3DJ-B does not have any low blue light certifications or list this as a feature on their product.

LED-Flicker

Another unique safety feature of the BenQ interactive displays is the use of flicker-free screen lighting that makes long-term use of the board much easier on one’s eyes. Many optometrists are concerned that LED-powered displays can have a nearly invisible flicker that can be harmful to the eyes. This was originally a problem with LED-powered gaming monitors, and so BenQ invented a flicker-free backlight that provides great color and brightness – without the harmful flicker. The BenQ RP classroom display also has been tested and certified by TUV for flicker-free performance.

LG does not have any LED flicker-free certifications.

Classroom Air Quality

Recent studies have even demonstrated that higher levels of CO2 in a room cause people to become drowsy and pay less attention.  Companies such as 3M have been working hard to improve the quality of the air in classrooms using advanced filters.  But can teachers and facilities managers tell if it is working?

Teacher and Student Safety Features

BenQ Board RP02 – 75”

LG TR3DJ-B – 75”

Teacher and Student Safety Features

Tempered Glass Hardness Level (MOHS)

BenQ Board RP02 – 75”

9

LG TR3DJ-B – 75”

Tempered Glass Hardness Level - 8

Teacher and Student Safety Features

Antimicrobial Glass Germ Certifications

BenQ Board RP02 – 75”

TUV Certifications (5)

SIAA Toxin Free

LG TR3DJ-B – 75”

No

Teacher and Student Safety Features

Blue Light Protection

BenQ Board RP02 – 75”

Yes

TUV Certified

LG TR3DJ-B – 75”

No

Teacher and Student Safety Features

Flicker-Free Backlight

BenQ Board RP02 – 75”

Yes

TUV Certified

LG TR3DJ-B – 75”

No

Teacher and Student Safety Features

Air Quality Monitor

BenQ Board RP02 – 75”

CO2

Dust / Particulate (2 sizes)

LG TR3DJ-B – 75”

None

Remote Device Management Systems

Managing a large number of classroom interactive displays requires an effective remote management software system or Device Management Systems (DMS).  BenQ includes a license-free system that permits admins to push settings, updates, apps, and campus-wide text and video messages to any or all boards in their network. 


LG does not offer a remote device management system for this model.

Device Management System

BenQ  DMS & X-Sign

LG TR3DJ-B

Device Management System

Interactive Display Control & Monitoring

BenQ  DMS & X-Sign

Yes

LG TR3DJ-B

No

Device Management System

Remote App Management

BenQ  DMS & X-Sign

Yes

LG TR3DJ-B

No

Device Management System

Multimedia Message Broadcast

BenQ  DMS & X-Sign

Yes

LG TR3DJ-B

No

Device Management System

Task Scheduling

BenQ  DMS & X-Sign

Yes

LG TR3DJ-B

No

Device Management System

Display Analytics

BenQ  DMS & X-Sign

Yes

LG TR3DJ-B

No

Device Management System

Projector Support

BenQ  DMS & X-Sign

Yes – including Epson, NEC, and Maxell projectors

LG TR3DJ-B

N/A

Teacher Log in and Cloud Access

For Teachers: Account Management and Logging-In

Both the BenQ RP have two very different approaches to enable teachers to securely log into the display and access network and cloud files directly from the display.  

The BenQ Board RP models are on their third generation of Tap ‘N Teach technology that enables unprecedented teacher access to enable a personalized display with access to cloud-based files from any display on campus.   Here’s how it works:

The IT manager creates a teacher account in BenQ’s Account Management System software database by linking it to their Active Directory infrastructure.   Then they assign the teacher their specific rights on the panel to keep key network settings from being changed, but enabling the teacher to change their background and which apps are on the main page.

This approach enables IT, managers, to ensure that the settings are correct – and that there are no age-inappropriate apps loaded on the panel (such as FaceBook being on a first-grade teachers' board).  Once logged in, all of the network drive from Google, Microsoft OneNote, and school network drives are automatically connected.

The best part about Tap N’ Teach is how easy and fast it is for a teacher to use.   Using the same secure technology used for Apple Pay– a teacher simply taps the panel with their card or badge – and in a few seconds, the display is personalized for that teacher, complete with background, apps, and network connection.  When they are finished – they tap the display again and the display returns to its generic state.  Teachers can also use a QR code that will enable them to securely type in a password on the phone to log into the display – avoiding the risk of typing directly on the board in view of the students.


The LG TR3DJ-B doesn’t have any special log-in or account management systems.  This means that anyone could change the settings on the board (such as language or network to disrupt the class).

Teacher Login and Cloud Access

BenQ  Tap ‘N Teach

LG TR3DJ-B

Teacher Login and Cloud Access

Access Google Drive from the panel

BenQ  Tap ‘N Teach

Yes

LG TR3DJ-B

No automated connection

Teacher Login and Cloud Access

NFC Card Secure Login

BenQ  Tap ‘N Teach

Yes

LG TR3DJ-B

No

Teacher Login and Cloud Access

QR Code Secure Login

BenQ  Tap ‘N Teach

Yes

LG TR3DJ-B

No

Teacher Login and Cloud Access

Active Directory support for Account Management

BenQ  Tap ‘N Teach

Yes

LG TR3DJ-B

No

So which interactive board is better for me – BenQ or LG?

While both models share similar features such as 4K resolution, wireless screen mirroring, and a dedicated OPS slot, understanding the key differences will help you decide which brand of interactive touch display will be right for your classroom. 

It’s important to do research and consult important stakeholders before deciding which board your school district should adopt. But there are some major advantages that BenQ brings to the table that can make a difference to a school that might want more flexibility in its curriculum. When deciding on your chosen solution, consider the following differences:

  • The BenQ display is over 20% brighter than the LG, has higher contrast, and has a 50,000 hour rated life.
  • The BenQ display includes a powerful cloud whiteboarding software ecosystem that works on any display included for free – without the cost of a premium subscription that will increase the TCO of the display.
  • The BenQ has more advanced classroom safety features, including anti-microbial glass, certified blue light filters, and a flicker-free screen that helps protect the user’s vision. BenQ uses specified hard glass, and has air quality, temperature, and humidity sensors to alert the teacher to any potential air quality risk.
  • BenQ’s Tap ‘N Teach NFC technology enables instant, wireless, secure teacher login – and even integrates with Active Directory! With a single tap, an enrolled teacher can transform any board on campus into their board in under 10 seconds.
  • BenQ Device management software allows school IT admins to manage BenQ displays, projectors, and even equipment from displays from legacy brands including Epson, NEC, Hitachi, and Casio – without requiring a subscription.
  • BenQ panels are designed and tested to run a wide variety of classroom education curriculum including Smart Notebook, ActiveInspire, Google Classroom, Microsoft Whiteboard, and dozens of other curriculum software platforms (including Mimeo) to enable teachers to switch learning.
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