AUO to Showcase Its Integrating Position in the Solar Supply Chain at Italy's SolarExpo

First Solar Module Plant in Czech Republic to Enter Mass Production in Q2

HSINCHU, Taiwan, May 3, 2010 - AU Optronics Corp. ("AUO" or the "Company") (TAIEX: 2409; NYSE: AUO) will
exhibit at SolarExpo 2010 in Verona, Italy from May 5-7 to showcase products
including high-efficiency EcoDuo mono-crystalline solar modules, the popular
EcoDuo PM220P00 multi-crystalline solar modules, and ground-mounted systems
for the Italian open fields market. The SolarExpo is one of the most noted
professional PV trade shows in the world. This year it boasts an increase of
22.2% in the number of exhibitors over the previous session, surpassing SNEC
in China and Intersolar in Germany to become one of the most well-known
industry events.

AUO will exhibit ground-mounted systems designed specially for the
Italian open fields market. Also, the Company will demonstrate its capability
in providing quality "PV total solutions" with its extensive experiences in
modules, power systems and PV projects during the exhibition. In addition,
the 230-250W EcoDuo mono-crystalline solar modules come in black or white to
match conveniently with the design of buildings. Furthermore, each of them
weighs 15% lighter than the same-sized modules on the market, making
installation much easier.

To deliver the products in time, reduce carbon emission caused by
transportation from Asia to Europe, and implement AUO's Green Solutions, AUO
established a solar module plant in Brno, Czech Republic, right in the center
of the European continent. The plant will start mass production in the second
quarter of this year and is expected to reach the capacity of 100MW in 2011.
Leveraging the Company's strength in global deployment, AUO's solar module
plant in Brno is the first automated module plant in Europe(*) among
Taiwanese companies. The production line is built with highly-integrated
automation system, which significantly increases product precision. The
quality of the solar modules is therefore guaranteed, a safeguard choice for
the European users.

Due to its profound experiences in employing high-precision TFT-LCD
technologies to the mass production of solar modules, AUO has become a
frequent participant in the large-scale solar power system projects in
Europe. The Company has applied its experiences in TFT-LCD production and
yield rate management to PV modules and vertically integrated all key
technologies up and down the PV value chain, from polysilicon, solar module
to PV system. Unlike many others who still engage in manual mode or low-end
production, AUO is capable of offering solar modules with longer lifetime and
higher efficiency. Meanwhile in its clean energy business, AUO now
collaborates with M. Setek to obtain quality polysilicon and solar wafers on
the upstream side to produce silicon solar modules which could achieve 25
years of power performance.

In addition to endeavors in PV materials, modules and systems, AUO has
also performed brilliantly in managing solar projects. In Hungen City,
Germany, the Company delivered 12,672 solar modules and set up a solar park
with its partners. The 2.9MWp solar-power plant is estimated to create Euro
16.79 million worth of electricity over its 20-year operation period, cutting
1,900 tons of CO2 emission each year.

AUO is currently in partnership with two major European industry players
to develop open-field solar power system projects in Italy. It is estimated
that the projects of PV systems will generate as much as 6.5 MWp of
electricity. The Company will continue to devote itself to the production of
solar modules and integration of power systems while joining many more
large-scale projects and PV investments. AUO will also closely cooperate with
local dealers around the world to develop a complete wholesale network of
solar modules. The distribution system is expected to be established by the
end of 2010.

*Based on available market research information as of May 3, 2010.

ABOUT AU OPTRONICS

AU Optronics Corp. (AUO) is a global leader of thin film transistor
liquid crystal display panels (TFT-LCD). AUO is able to provide customers
with a full range of panel sizes and comprehensive applications, offering
TFT-LCD panels in sizes ranging from 1.2 inches to greater than 65 inches.
AUO generated NT$359.3 billion (US$11.2 billion) in sales revenue* in 2009
and now houses a staff of more than 42,000 employees, with global operations
in Taiwan, Mainland China, Japan, Singapore, South Korea, the U.S., and
Europe. Additionally, AUO is the first pure TFT-LCD manufacturer to be
successfully listed at the New York Stock Exchange (NYSE). AUO extended its
market to the green energy industry in late 2008, and formally founded its
Solar Photovoltaic Business Unit in October, 2009. For more information,
please visit AUO.com.

* 2009 year end revenue converted at an exchange rate of NTD31.95:USD1.

Safe Harbour Notice

AU Optronics Corp. ("AUO" or the "Company") (TAIEX: 2409; NYSE: AUO), a
global leader of TFT-LCD panels, today announced the above news. Except for
statements in respect of historical matters, the statements contained in this
Release are "forward-looking statements" within the meaning of Section 27A of
the U.S. Securities Act of 1933 and Section 21E of the U.S. Securities
Exchange Act of 1934. These forward-looking statements were based on our
management's expectations, projections and beliefs at the time regarding
matters including, among other things, future revenues and costs, financial
performance, technology changes, capacity, utilization rates, yields, process
and geographical diversification, future expansion plans and business
strategy. Such forward looking statements are subject to a number of known
and unknown risks and uncertainties that can cause actual results to differ
materially from those expressed or implied by such statements, including
risks related to the flat panel display industry, the TFT-LCD market,
acceptance of and demand for our products, technological and development
risks, competitive factors, and other risks described in the section entitled
"Risk Factors" in our Form 20-F filed with the United States Securities and
Exchange Commission on May 27th, 2009.

Freda Lee, Corporate Communications Division, AU Optronics Corp. at +886-3-5008800 x3206, fax: +886-3-5772730 or freda.lee at auo.com; Yawen Hsiao, Corporate Communications Division, AU Optronics Corp. at +886-3-5008800 x3211, fax: +886-3-5772730 or yawen.hsiao at auo.com