LTSMG Webinar May 2020 Programme 3 HE Displays Specification & Sign-off

LTSMG Webinar

May 2020 Programme

3

–

HE Displays Specification & Sign-off

DISPLAYS, LIGHT & ENVIRONMENTAL EXPERTISE PRODUCTS, SERVICES, SPECIALIST CONSULTANCY

Presenter

–

Greg Jeffreys

 Managing Director, Visual Displays (formerly Paradigm AV)

 Specialisms include standards, displays, light & lighting, VC

lighting, teaching space & meeting room design

 Chair, AVIXA Standards Steering Committee

 Task group member, AVIXA’s new UX for AV Design standard

 Task group chair ANSI/AVIXA DISCAS standard – image size,

resolution, viewing positions/angles, content size guidance

 Lead writer, PISCR image contrast standard – and new ISCR

standard task group

 President of InfoComm/AVIXA 2012, board member 2008-13

 Former visiting lecturer, UMIST – post-grad MSc Sustainable

Electronic Building Design (Prof Geoff Levermore)

LTSMG webinar series programme



Monday

–

Standards for Technology Campus Management



Tuesday

–

HE Teaching Space Design



Wednesday

–

Display Specification and sign-off



Thursday

–

ANSI/AVIXA DISCAS Standard for HE

Poll questions

PLEASE KEEP QUESTIONS COMING DURING THE WEBINAR! ANYTHING YOU WANT ADDED INTO THE WEEK’S SESSIONS??

Themes for the week

 AV is complex, multi-disciplinary, multi-stakeholder – why standards provide the

tools you need to get the results you need

 Easier to use than not to use  Removes subjectivity

 Improved communication with senior management and other stakeholders  Metrics for achieving best budget value

 Better and unequivocal communication with integrators  Clearly defined and measurable outcomes with integrators  AV being considered at earliest possible project phase

 Post lockdown, students will need to see and hear content in the farthest

corners of teaching spaces  AV Standards

Learnings from Day 3?

 WELL Building Standard v2 is very interesting!  Re-configuring spaces for social distancing

 Moving into Day 3…

Knowledge is key

UX and use case

…knowledge is the key

 Forget technology until key basic issues are 100% scoped  Objective: create measurable performance metrics

 Use the relevant standards:

 DISCAS

 Image Size

 Image resolution

 Closest/farthest viewing distances  Horizontal/vertical viewing angles  Image content size

 PISCR / ISCR

Two level UX approach

1. Select from the common PISCR / DISCAS viewer categories. Or… 2. Use UX design principles (Human-Centred Design)

1. New User Experience Design for AV (‘UXD4AV’)

Watch out for public review of new User Experience Design for AV standard!

DISCAS / ISCR viewer categories

 2 of 4 are applicable:

 Basic Decision Making (BDM)

 Viewers can make decisions and have learning engagement with the

content

 Do not need ability to perceive granular (pixel) detail of content

 Text, spreadsheets, images – what they communicate, not the component

pixels

 Analytical Decision Making (ADM)

 Viewers can make decision and have learning engagement with the

Image size

Use DISCAS!

Focused webinar tomorrow!

 There are good guidelines…

Is it big enough for social distancing?

Quick & dirty tip for quick space redeployment

1. Rent/buy projector(s)

2. Rent/buy access tower(s)

3. Project onto white/pale wall(s) or…

1. Hire staging set screen (e.g. ‘FastFold’ etc)

4. Have building services kill lighting adjacent to display wall

1. Revision point – image contrast is a function of ambient light (when you

don’t use ALR screens)!

There are some local rental & staging companies who will be very happy to take your call!

Contrast is key driver

15:1 contrast ratio

 The PISCR/ISCR image standard has four viewing

categories

 In standard installations 15:1 is almost always

impossible to achieve

 But why………..?

The white squares’ average

luminance (brightness) must be 15 x more than the black

squares.

ONSCREEN – NOT FROM PROJECTOR

Contrast in real life

A typical scenario

Double screen gain?

…no change

Double the lumens (and price?!)

…small improvement

Control the ambient light?

…massive improvement!

Real life contrast is driven 100% by

ambient light



Projector contrast can’t be perceived until

you’re in a darkened room



If you can’t control the light, you need screen

FPD/LFD display contrast also

driven by ambient light

The split screen technology

demonstration

See full Gary Kayye ISE video here - https://www.dnp-screens.com/en/video/dn p-ambient-light-rejecting-screens-at-ise-2015/

The split screen technology

demonstration

Play video here -https://www.yout ube.com/watch? v=i82O9xYxRxk

15:1 contrast

Make it happen!

 Example 120” image  Normal lighting scenario  15:1 image contrast

impossible with standard screen

 Easy with dnp

ALR(ambient light rejecting) material!

 3 x better is typical with

dnp – up to 7 x better

 Try it yourself

Image luminance

(‘brightness’)

 You need the ‘Goldilocks Effect’ – not too dark and DEFINITELY not

too bright (FPD, dvLED etc)

Avoiding asthenopia is the key objective – don’t design eyestrain into

The black level paradox

 The key is Task Luminance Ratio (WELL, SLL, IES etc building codes)

ensuring all surface luminances – including displays – fall within 3:1 ratio

 Focus on image black levels to ensure display white levels are not

too high

 Download essential calculators here

Typical DISCAS plan

The displays continuum

 Up to 90” – flat panels (LFD, FPD)  Above 90” – ALR projection

 Variable entry point for dvLED –

but not currently suited to pedagogical applications

Sign-off

Use the grey scale!

Specialist manufacture, distribution, services.

Supporting HE framework integrators to excel.

Visual Displays Ltd

Specialist manufacture, distribution & services

Working in partnership with & through the channel

 Products

 dnp Supernova ALR (ambient

light-rejecting) projection screens

 Complete Epson laser display

bundles – from 100” to any size

 Comprehensive projection

screens, materials

 Immersive displays

 Bespoke display & mounting

solutions

 Bespoke interactive displays

 Daylight control (blinds)

 Services

 Display design and specification

 Parametric 3D CAD design

 Expert tender response support

and consultant liaison

 Space redeployment design for

social distancing

 System troubleshooting

 Room surveys and audits (using

meters & reporting to standards)

 Proof of concept

Ambient light rejecting screens

…best known for dnp Supernova

dnp Supernova 08-85 dnp Supernova 20-25 Standard white Da-Lite gain 1

See full Gary Kayye ISE video here - https://www.dnp-screens.com/en/video/dn p-ambient-light-rejecting-screens-at-ise-2015/ https://www.dnp-screens.com/

Successful HE case studies

 Southampton Uni with ProAV  3 x dnp Supernova Infinity  3 x EB-L1500UH

Complete Laser Displays

Standards-compliant large screen displays

 Complete bundled packages, Epson

projector (with warranty), dnp screen & Epson mount.

 100”, 110” & 120” with UST (e.g. EB-700U)  100” to any size with standard lens laser

projectors

 Furniture & bespoke options available

 Option to buy complete displays as single SKUs  Fraction of £cost/m2 compared with LFD,

dvLED etc

Specialising in the difficult!

CAVES

MULTI-PROJECTION

CURVED SCREENS

IMMERSIVE, SIMULATION, AR, VR, CR etc

LARGE SCREEN INTERACTIVE

World-leading 3D CAD design and bespoke

manufacture

Social distancing space configurator

Greg Jeffreys – Director, Consultant Visual Displays – Bedford UK

[email protected]

01234 581000 07500 868 995