Display Standard - Veritas et Visus

Veritas et Visus Display Standard February 2009
AUO is aggressively adopting LED technologies and plans to have 100% LED by the end of 2011. AUO will save
more than 120,000 mg of mercury by 2011. She then discussed AUO “Green 2010” eco-efficiency indexes. There
will be a 70% reduction from 2004 levels by 2010 in greenhouse gas emissions per substrate size; 80% waste
recovery rate achievement; and 70% reduction from 2004 levels by 2010 in water consumption per substrate size.
She turned to dynamic backlight control. There are various algorithms to manipulate the BL index and GL transfer
to differentiate image quality. This is usually done by the system designer/maker, but 2D control is feasible in
direct type LED backlights. Lin concluded by saying that the TFT-LCD market will continue to grow through
technology innovation and novel applications. Displays continue to reshape our future life style. Products bring
convenience to life = A products, and help to “green” the world = A+ products. AUO can make A+ products
through green innovation: optimized panel design reduces power consumption; utilize green material and reduce
consumption for products and processes; think green for high performance and stylish systems. AUO plays a key
role to “green” the world by its influence to broad component vendors and customer bases.
Disruptive Technology in Small and Medium Display “mirasol” Display Value Proposition
James Jeon, Qualcomm MEMS Technologies, San Diego, California
Qualcomm is a global leader in developing and delivering innovative digital wireless communications solutions
based on CDMA and other advanced technologies. It partners with wireless operators, device manufacturers,
independent software vendors, and distribution suppliers to drive adoption of mobility solutions based on 3G
CDMA and other digital technologies. “mirasol” is a MEMS-based reflective display. It reflects ambient light so
that specific wavelengths interfere with each other to select color (see illustration). As a mechanical device, the
mirror actuates due to an applied voltage, with a response time of 10s, easily supporting video applications. The
phenomenon that makes a butterfly’s wings shimmer is the same process mimicked in mirasol displays. There are
no color filters, no polarizer, no transistors, no organic material, and no backlight.
What drives the widening power gap? Style dictates design: there is a demand for smaller and thinner devices,
which equates to space limitations on batteries. There is slow battery R&D. Development focuses on delivering
higher discharge vs. power conserving batteries. Cutting edge battery R&D is focused elsewhere (hybrid vehicle
technology). Convergence is the primary contributor. Users continue to demand more applications, and operators
derive increasing revenue streams from application-based services. The current solution is a bigger battery. The gap
between the capacity of 3G phone batteries and non-3G is growing. Power consuming 3G features like video calls
and web browsing tax phone batteries. The trend is to bigger batteries – heavier, thicker, non-style supportive and
more cost. mirasol displays are a low-power solution. For a 2.2-inch color screen, it uses 1mW compared to 100-
700mW for AMOLED and 20mW for TFT-LCD. It is bistable with near-zero power for a static image. It is sunlight
viewable with a wide, symmetric view cone. Commercial products featuring mirasol displays are entering the
marketplace adding value throughout the wireless value chain, the company says.
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