LED Backlight for LCDs - Dr.
Munisamy Anandan, President, Organic Lighting Technologies
Fundamentals of LEDs as a light source and two methods of
obtaining white backlight required for LCDs are described: a mixed
R-G-B source and a blue-phosphor-converted light source. Recent
developments in backlight optics for LEDs for efficient color
mixing, reduced light loss and slim geometry are described along
with backlight systems of leading companies illustrating these
performance improvements. Image quality improvements obtainable
with How LED backlights: can increase color gamut, reduce motion
blur, and improve color gamut and contrast at low light levels are
discussed. Recent advances in power and cost reduction are
described, and a strong trend toward use in laptop LCDs is noted.
Limitations of LEDs , and controls required to retain stability of
LEDs are enumerated.
Dr. Munisamy Anandan
received his Ph.D from the Indian Institute of Science, Bangalore,
India. He has 30 years of experience in flat panel display
technologies ranging from LCD, plasma, FEDs and OLEDs. His recent
field of specialization is LCD backlighting. Dr. Anandan worked in
various companies that include Bell Communications Research,
Panasonic and eMagin Corporation. He has many honors & awards,
publications and patents in all flat panel display technologies.
He has delivered invited talks and seminars at numerous
international SID and other conferences. . Currently Dr. Anandan
is President of Organic Lighting Technologies based in Austin,
Texas. He is a senior member of IEEE, and is currently serving as
Treasurer of SID, having served as SID Secretary and Americas
Region Vice-President in years previous.
How to Design an LCD Display -
David Eccles, Consultant, Eccles Engineering
Fundamentals of LCD display system design are presented. The
approach is from a system design perspective which specifies the
main components and their interfaces. Starting with customer
performance requirements and display system cost target, the
seminar covers basic considerations in selecting the flat panel
display, controller, backlight, power supply, and touch screen.
The project management process to design the product for
manufacturing, is discussed. The seminar is beneficial for both
engineers wanting to learn about display systems as well as
project managers.
David Eccles received a
B.S.E.E. from the University of California at Irvine, and did
graduate work at Purdue University. He has 30 years experience in
display systems and consumer electronics. He is currently an
independent consultant working in video and display systems
engineering, product planning and development, and project
management, leveraging his technical skills and management
experience Previously he was VP of Engineering for Sony's TV
business with responsibilities in R&D, product design, and
manufacturing for various products including TV, HDTV, home
networking, digital satellite, and computer monitors. At Hughes
Aircraft Co. he managed R&D and product design for air traffic
control displays and for high resolution liquid crystal
projectors. Currently serving as SID Americas Regional VP, Mr
Eccles has earlier served on the SID board of directors, has
served on the annual symposium program committee since 1988, and
has helped organize numerous SID conferences. He has served on
industry boards and standards committees, Including VESA. Dave has
authored papers for SID and other industry publications as well as
presented seminars on various display, TV, and networking topics.
3-D Displays and Applications -
Patrick Green, Director of the Technology Group, Planar
Systems Inc.
In response to the explosion of available three dimensional
imagery in recent years, new approaches for the display of 3D have
been developed, in part driven by the ready availability of
display components that allow novel new designs. This presentation
will provide an overview of commercially available 3D display
systems, the factors that will contribute to their commercial
success and the applications for their use.
Pat Green is Director of
the Technology Group at Planar Systems in Beaverton, Oregon. He
has over 20 years of experience in the development of displays and
display-related components as a process engineer, program manager
and engineering manager at Planar Systems and Tektronix. The
device developments he has been responsible for or contributed to
include color CRTs, liquid crystal displays, ink jet print heads,
TFEL and OLED displays, touch input devices and stereoscopic/3D
displays. He received a Bachelor's and Master's Degree in
Chemistry from Portland State University and has been author or
co-author of more than 20 scientific and engineering papers and 4
patents. Most recently he has been project and product manager for
Planar's new stereoscopic 3D line of monitors.
Display Test and Measurements -
Ed Kelley, National Institute of Standards and Technology
Quantifying display performance rests upon a foundation of good
measurements. These can be difficult to achieve because of a
variety of subtle problems that are often overlooked. We discuss
corruption of measurements from glare, complications in making
reflection measurements; and we identify numerous other problems
in measuring displays.
Dr. Edward E. Kelley
graduated from the University of Idaho in 1970 in physics. He
entered graduate school at Montana State University, finishing in
1977 with a Ph.D. in experimental atomic physics. He started in a
post-doctoral position at NIST (formerly the National Bureau of
Standards) in high voltage impulse measurements using the
electro-optical Kerr effect. He continue on at NIST as a staff
member for approximately 11 years investigating liquid dielectric
breakdown and high-voltage pulse-measurement techniques. In 1988,
he received the R&D 100 award for an Image Preserving Optical
Delay designed for observing the initiation of random phenomena
such as partial discharges. After having returned to Idaho to get
a taste of private consultation and university teaching, he
returned to NIST, and is currently working in the Display
Metrology Project and the Flat Panel Display Laboratory at NIST to
assist industry in developing display metrology and measurement
standards to quantify display quality.
What makes medical displays
unique? - Tom Kimpe, Head, Technology & Innovation, BARCO,
Medical Imaging Systems
This seminar gives an overview of the requirements for medical
display systems, why these requirements are necessary and by which
technology or techniques they can be achieved. Underlying reasons
for the demanding specifications for brightness, contrast and
uniformity & spatial noise are explained, and how they can be
achieved is discussed at length. The DICOM GSDF calibration
procedure and ramifications of poor calibration are considered,
and the "Barten model" is explained. Techniques for
backlight stabilization and luminance stabilization are discussed,
and the impact and mitigation of spatial noise are considered.
Tom Kimpe obtained his
degree 'master of science in computer engineering' from the
University of Ghent, Belgium in 2001. Since then he has been doing
research within Barco Medical Imaging Systems on medical display
technology, calibration algorithms, image quality enhancement and
human visual system modeling. Technologies he developed include
PPU (Per Pixel Uniformity, a technology to compensate for spatial
noise and non-uniformities in LCDs) and DPC (Defective Pixel
Correction, a technology to visually mask defective pixels in
active matrix displays). He presented several papers at
international display technology and medical imaging conferences,
and has several patents in the field. Within Barco Medical Imaging
Systems he is steering the research activities as head of the
Technology & Innovation.
DisplayPort Technology
Development - Alan Kobayashi, Director of Architecture and
Strategy, Strategic Initiative Department, Genesis Microchip
This paper provides a technical overview of VESA DisplayPort
Standard, Version 1. DisplayPort consists of a uni-directional
Main Link for transporting isochronous A/V streams from Source
device to Sink device and a half-duplex bi-directional AUX CH used
for realizing robust plug-n-play ease of use. DisplayPort features
up to 4 pairs of AC-coupled differential pairs, each supporting up
to 270Mbytes/s, and provides for robustness, interoperability,
layered and modular architecture, and extensibility to enable new
display application scenarios.
Alan Kobayashi - received
his M.S.E.E. from Keio University in Japan. Within VESA, he has
served the lead architect role as the Editor of DisplayPort Task
Group and PHY Compliance Subgroup Leader. At Genesis Microchip,
where he has stayed for the last ten years, he belongs to the
Strategic Initiative Department as Director of Architecture and
Strategy.
Image Artifacts: Causes and
Remedies - Dr. James Larimer, President, ImageMetrics LLC
Image artifacts degrade image quality and display performance. A
taxonomy for and discussion of the causes and cures for artifacts
such as jaggies, fill factor, pixel geometry, flicker, weave,
jitter, judder, gray-scale banding, false contours, and image
breakup will be provided from the perspective of human vision and
display architecture.
Dr. James Larimer
received his Ph.D. degree from Purdue University and he was an NIH
postdoctoral Fellow at the Human Performance Center of the
University of Michigan. His doctoral and post-doctoral work
specialized in quantitative methods, statistics, and human sensory
physiology and psychophysics. After Michigan, he joined Temple
University as a Professor, and later as Department Chairman. At
Temple, he taught sensory physiology, perception, statistics and
conducted an NIH-funded research program in human vision. From
1982 to 1985 he directed the Sensory Physiology and Perception
Program at the National Science Foundation. In 1987 he joined
NASA's Ames Research Center as Senior Scientist, resigning in 2005
to work full time in industry. He has published numerous research
papers on statistics, applied mathematics, human vision and
electronic displays. At NASA, he led a DARPA-funded
multidisciplinary team that produced a suite of design tools for
display development and manufacturing. The ViDEOS human-vision
model, developed in collaboration with the Sarnoff Corporation,
won an Emmy for technical achievement from the Academy of
Television Arts and Sciences. His research after joining NASA has
focused on image quality, characterizing the dependency of image
quality on information in the video signal and the ability of the
display to reconstruct the signal without adding distracting
artifacts. He is a member of the SID and has served on the
technical program committee since 1990. He was SID's Bay Area
Chapter Treasurer, Vice Chair, Chair and Director, and its
Americas Region Vice President (1999-2001). He is a member of
AAAS, OSA, SID, SMPTE, SPIE & IEEE.
Overview of Display Markets and
Trends - Paul Semenza, Manager, Displays and Consumer
Electronic Market Research and Strategic Analysis Activities,
iSuppli
This tutorial will examine existing and new display technologies
from the perspective of the applications they serve. Areas of
current interest, such as television, mobile phones, monitors,
digital signage, and others, will be examined in detail, including
their technical requirements and price points. Display
technologies, such as LCD, OLED, PDP, projection, and emerging
options, will be evaluated for their ability to serve each
application.
Paul Semenza manages
displays and consumer electronic market research and strategic
analysis activities at iSuppli. From 1997 to 2000, Paul took on a
variety of display research and management roles at Stanford
Resources, and since the acquisition by iSuppli in 2000 has played
a key role in integrating Stanford Resources into iSuppli.
Previously, he worked at the National Research Council, the U.S.
Congress Office of Technology Assessment (OTA), and The Analytic
Sciences Corp. Paul received a BS in electrical engineering and an
MS in electro-optics from Tufts University, and a Master in Public
Policy degree, JFK School of Government at Harvard University.
The Race for TVs with Higher
Luminous Efficiency - Dr. Larry F. Weber, President of the SID
(formerly President and CEO of Plasmaco)
The salient characteristics of major display contenders for the
consumer TV market are described, and LCDs, CRTs, PDPs, projection
displays, FEDs, SEDs and OLEDs are each examined in terms of the
most critical display characteristic, the luminous efficiency.
Each technology has great opportunity for improvement, but which
one will win the race?
Dr. Larry F. Weber has
spent his entire career of 37 years devoted to the advancement and
promotion of plasma displays. He started in the late 60's as a
student of the plasma display inventors at the University of
Illinois. In 1975 he became a professor at Illinois, and rose to
become the director of the plasma display research group. In 1987
he co-founded Plasmaco Inc., which in that same year acquired the
world's largest plasma display manufacturing plant from IBM. In
1993 he became president of Plasmaco. Under his leadership
Plasmaco was acquired by Matsushita in 1996. In January 2004 he
retired from the position of President and CEO of Plasmaco. Dr.
Weber published over 40 papers and holds 15 patents on plasma
displays, including the patents for the energy recovery sustain
circuits used in today's plasma TV Products. He is a Fellow of the
SID and the IEEE. He has received two SID Special Recognition
Awards, and SID's prestigious Karl Ferdinand Braun Prize. He now
serves as President of the SID.
Mobile Displays - Dr. Sen Yang,
Leader, Mobile Display Optical Group, Motorola Display Design
Center, Motorola
Along with the development and the popularity of cellular phones,
mobile displays draw more attentions. In this seminar, we will
review the evolution of mobile displays, the display components
and their functions, key display attributes, and mobile display
trends.
Dr. Sen Yang received his
BSEE from Tsinghua University in Beijing, China, and graduated
from Georgia Tech with a Ph.D. in Physics on display materials.
Since 1997 he as been working on portable displays at Motorola,
with LCDs, OLEDs, EL, LEDs and optical performance enhancement
techniques. Sen has participated in many mobile display projects
including the award winning Razr display. He is currently leader
for the Mobile Display Optical Group at the Motorola Display
Design Center. He is a member of SID and has published more than
10 technical papers and holds 3 display related patents.
