Transcript Digital Projection - Technical Audio Group NZ Ltd

Electronic Projection Technology
Welcome to today’s presentation on
Electronic Projection Technology in the cinema industry
Presented by Andy Milne
Technical Director, Technical Audio Group NZ Ltd
Electronic Projection
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Introduction to TAGNZ
Projection Technologies
Projection Resolution
Cinema Industry standards for digital cinema
History of Digital Projection International
Digital Projection International cinema products
The future of digital Cinema
DVD & HD demonstration clips
Questions
Technical Audio Group NZ Ltd
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Technical Audio Group or TAGNZ is the New Zealand importer of a number of
premium cinema related products including Digital Projection International
DLP projectors and Martin Audio sound systems.
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Martin Audio is installed in New Zealand's premium cinemas, the Embassy in
Wellington, the Civic in Auckland and a number of other intimate cinemas around
New Zealand.
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Both companies manufacture in the UK and offer the best of British sound and
imaging technology.
Technical Audio Group NZ Ltd
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Andy Milne trained as a BBC engineer and worked in studio engineering, live TV
colour grading and telecine transfer areas as well as many years as a video tape
editor.
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TAGNZ has a passion for the best in imaging and sound reproduction technology
and we take great pride in working with our clients in the cinema industry to give
an experience that keeps the public coming back.
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TAGNZ provides industry leading support and backup which is vital for the
cinema industry.
Projection Technologies
LCD
LCOS or DILA or SXRD
DLP
Liquid Crystal Display
Liquid Crystal On Silicon
Digital Light Processing
3 panels of liquid crystal
sandwiched between glass
Single or 3-chip DMD’s
(Digital Micro-mirror Device)
Transmission technology
3 panels of liquid crystal
sandwiched between a top
layer of glass and a silicon /
reflective backing
Light level is
analogue controlled
Transmission technology via
reflective backing
Light level is
digitally controlled using pulse
width modulation
Light level is
analogue controlled
Reflective technology
Technology Comparison
LCD
Domestic Quality
Lower purchase cost
Higher long term cost
Liquid crystal panels age causing
discolouration and uneven
illumination
Colour matching difficult
Liquid Crystal has slow response
time causing motion blur
Lower contrast ratio than DLP
Pixel structure more apparent
than LCOS or DLP, low fill factor
DILA or LCOS or SXRD
Single Chip DLP
Semi Pro & Pro quality
Upper domestic quality
Middle purchase cost
Higher long term cost
Middle purchase cost
Lower long term cost
Liquid crystal panels can age
causing discolouration and uneven
illumination depending on
technology used
True digital projection technology
using pulse width modulation
Pixel structure less apparent than
LCD
LCOS has faster response than LCD
but slower than DLP
Lower contrast ratio than DLP
Minimal pixel structure due to very
small inter pixel gaps
Suffers from “rainbow” effect
RGB sequential, 1/3 of light in use
Technology Comparison
3 Chip DLP
Professional quality, designed for
commercial environments
True digital projection technology using pulse width
modulation, noise free,
digital colour and gamma correction
Higher purchase cost, Lower long term cost
Digital means stability of image over time
All available light in use, brighter
Uniform light output and colourimetry over image area
Reflective technology, can handle heat load
better than transmissive technology LCD or LCOS
Capable of higher light output than LCD or LCOS
Highest bit depth of any projection technology,
over 4 trillion colours on screen
Minimal pixel structure due to very small inter pixel gaps
Less temporal artefacts,
no colour wheel, no “rainbow” effect
Film like images
Ageing Comparison
The following slides are from a test conducted by Munsel Colour Science Laboratory
at Rochester Institute of Technology for Texas Instruments
showing the image quality of 5 LCD and 2 DLP projectors
after over 3000 hours of use.
LCD Experiment Results
3312 Hours
Photo at 24 hours
LCD 1
LCD 3
LCD 2
LCD 4
LCD 5
DLP Experiment Results
DLP 1
Photo at 24 hours
3312 Hours
DLP 2
Progressive Degradation
LCD 5
Projection Resolution
2K 1920x1080 pixels HDTV
1.3K 1280x720 pixels HDTV
DVD 720x576 PAL
Electronic Cinema Standards
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The following standards were set by Digital Cinema Initiatives, USA in July 2005
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Pixel Count
Calibrated white luminance, centre screen
Colour uniformity of white field
Sequential contrast ratio
Intra frame contrast ratio
Greyscale tracking
“2K” 2048 x 1080 OR “4K” 4096 x 2160
14ftL (Dolby spec for film is 16ftL)
+- .010 x, y relative to centre
1200:1
100:1
No visible colour shading
History of Digital Projection International
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1987-1988 A division of the Rank Organisation, Rank Brimar, sets up an R&D team of engineers to work with
Texas Instruments to develop DLP projection using Digital Micro-mirror Device. The relationship with
TI predates any other projector manufacturer by many years.
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1992
Rank Brimar engineers demonstrate the first DLP displayed image using the revolutionary “bit splitting”
technology developed and patented by the Brimar lead engineer Brian Critchley who remains DPI’s
Managing Director today .
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1996
Engineering team buys out Rank Brimar and launches Digital Projection International. DPI ships first
3-chip DLP projector.
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1998
DPI wins 2 Emmy Awards for outstanding engineering development. DPI remains the first and only
projector manufacturer to win the award.
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2000-2004 Digital Projection joins TI for an in depth study of Digital Cinema. During the process, some of the key
parameters for the future of Digital Cinema are defined.
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Today
Digital Projection remains TI’s only partner with a range of solutions that are 100% dedicated to the
DLP platform.
Digital Projection 3 chip DLP Products
Morpheus
Specifically developed for
E-Cinema applications
Currently 1.3k
6,000 ANSI Lumens
Titan
1.3k & 2k resolution
2,000-6,000 ANSI Lumens
Lightning
2k resolution
18,000-22,000 ANSI Lumens
Future of Electronic Cinema
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The Cinema Industry has to remain well ahead of what the public are able to have in their homes.
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Many projectors are currently being sold as “State of The Art”. The reality is that many of these projectors use
inferior technology and give mediocre image quality.
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“State of The Art” means the best that is currently available.
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LCD, LCOS or single chip DLP are generally not “State of The Art”.
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3 Chip DLP is currently “State of The Art”.
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DLP is the only truly digital projection technology.
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If mediocre projection systems are used, cinema attendance is likely to drop as people become disillusioned with
the experience they are getting using DVD sources and inferior projection systems.
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The only way forward for cinema’s using Electronic Projection is to invest in quality equipment capable of giving
audiences a memorable experience. Otherwise the viewing public will vote with their feet.
DVD resolution Film Clip
The following clip is a standard PAL DVD film clip
up-scaled to 1.3k
High Definition Clips
The following clip is 1.3k resolution
720p Windows Media Encoded HD file
1.3k 720p is being used in the Asian Cinema market with over 1,250
Digital Projection Morpheus projectors installed.
Questions
Andy Milne, Technical Director, Technical Audio Group NZ Ltd
09 416 0190 www.tagnz.co.nz
www.digitalprojection.com