AU Optronics Corp.
Fourth Quarter 2007 Results
Investor Conference


January 30, 2008

Safe Harbor Notice


The statements included in this presentation that are not historical in nature
are "forward-looking statements" within the meaning of Section 27A of the United
States Securities Act of 1933 and Section 21E of the United States Securities
Exchange Act of 1934. These forward-looking statements, which may include
statements regarding AU Optronics' future results of operations, financial
condition or business prospects, are subject to significant risks and
uncertainties and are based on AU Optronics' current expectations.

Actual results may differ materially from those expressed or implied in these
forward-looking statements for a variety of reasons, including, among other
things: the cyclical nature of our industry; our dependence on introducing new
products on a timely basis; our dependence on growth in the demand for our
products; our ability to compete effectively; our ability to successfully expand
our capacity; our dependence on key personnel; general economic and political
conditions, including those related to the TFT-LCD industry; possible
disruptions in commercial activities caused by natural and human-induced
disasters, including terrorist activity and armed conflict; and fluctuations in
foreign currency exchange rates.

In addition, any financial information contained herewithin is presented in
conformity with accounting principles generally accepted in the Republic of
China ("ROC GAAP"). Readers should be cautioned that these accounting principles
differ in many material respects from accounting principles generally accepted
in the United States of America ("US GAAP").

Our release of financial forecasts and forward-looking statements at any
particular time does not create any duty of disclosure beyond that which is
imposed by law, and we expressly disclaim any obligation to publicly update or
revise any forecasts or forward-looking statements, whether as a result of new
information, future events or otherwise.

Additional information as to these and other factors that may cause actual
results to differ materially from AU Optronics' forward-looking statements or
some of the major differences between ROC GAAP and US GAAP can be found in AU
Optronics' Annual Report on Form 20-F with respect to the year ended December,
2006 filed with the United States Securities and Exchange Commission.

Consolidated Income Statement


4Q'07(a) 4Q'06 3Q'07(a) QoQ %
Net Sales 155,495 100.0% 137,960 100.0% 12.7% 94,646 100.0%
Cost of Goods Sold (113,502) (73.0%) (106,168) (77.0%) 6.9% (87,000) (91.9%)
Gross Profit 41,993 27.0% 31,792 23.0% 32.1% 7,646 8.1%
Operating Expenses (7,212) (4.6%) (5,982) (4.3%) 20.6% (4,819) (5.1%)
Operating Income 34,781 22.4% 25,811 18.7% 34.8% 2,827 3.0%
Net Non-operating Expenses (1,352) (0.9%) (1,666) (1.2%) (18.9%) (914) (1.0%)
Income before Tax 33,429 21.5% 24,144 17.5% 38.5% 1,913 2.0%
Net Income 33,092 21.3% 22,571 16.4% 46.6% 1,651 1.7%
Attributable to: Equity holders of the parent company 33,006 21.2% 22,530 16.3%
46.5% 1,659 1.8%
Minority interest 86 0.1% 41 0.0% 110.8% (8) (0.0%)
Net Income 33,092 21.3% 22,571 16.4% 46.6% 1,651 1.7%
Basic EPS (NT$)(b) 4.22 2.89 46.2% 0.19
Operating Income + D&A 55,322 35.6% 46,952 34.0% 17.8% 21,829 23.1%
Unit Shipments (mn)(c)
Large Size Panels 23.2 22.3 4.3% 16.6
Small & Medium Size Panels 48.0 40.7 17.9% 24.5

Amount : NT$ Million Except Per Share Data


Unaudited, prepared by AUO on a consolidated basis


(a) Effective 2Q07, AUO's consolidated financial statement incorporated Toppan
CFI (Taiwan) Co, Ltd (CFI) into consolidated entity

(b) Basic EPS was calculated based on the total diluted weighted average
outstanding shares of each quarter (7,809m shares in 4Q07, 7,795m shares in 3Q07
and 6,467m shares in 4Q06) by retroactively adjusting to stock dividend and
stock bonus

(c) Large size refers to panels that are 10 inches and above


3 AUO Proprietary & Confidential

Consolidated Income Statement

Amount : NT$ Million Except Per Share Data

FY 2006(a) FY 2007(a) YoY %

Net Sales 480,184 100.0% 293,107 100.0% 63.8%
Cost of Goods Sold (394,005) (82.1%) (263,256) (89.8%) 49.7%
Gross Profit 86,178 17.9% 29,850 10.2% 188.7%
Operating Expenses (22,903) (4.8%) (15,634) (5.3%) 46.5%
Operating Income 63,275 13.2% 14,216 4.9% 345.1%
Net Non-operating Expenses (4,711) (1.0%) (4,016) (1.4%) 17.3%
Income before Tax 58,564 12.2% 10,200 3.5% 474.1%
Net Income 56,476 11.8% 9,093 3.1% 521.1%
Attributable to:
Equity holders of the parent company 56,418 11.7% 9,103 3.1% 519.7%
Minority interest 58 0.0% (10) (0.0%)
Net Income 56,476 11.8% 9,093 3.1% 521.1%
Basic EPS (NT$)(b) 7.22 1.41 413.2%
Operating Income + D&A 144,980 30.2% 66,976 22.9% 116.5% ROE(c) 21.7% 4.7%
359.8%
Unit Shipments (mn)(d) Large Size Panels 80.9 48.8 65.9%


Amount : NT$ Million Except Per Share Data


Unaudited, prepared by AUO on a consolidated basis

(a) Effective 2Q07, AUO's consolidated financial statement incorporated CFI into
consolidated entity. AUO completed its merger with QDI on October 1, 2006

(b) Basic EPS was calculated based on total weighted average outstanding shares
of 7,809m shares and 6,467m shares in 2007 and 2006, respectively

(c) ROE was based on average equity attributable to shareholders of the parent
company

(d) Large size refers to panels that are 10 inches and above

4 AUO Proprietary & Confidential

Consolidated Balance Sheet Highlights

Amount : NT$ Million

Amount : NT$ Million

4Q'07(a) 3Q'07(a) QoQ % 4Q'06

Cash & ST Investment 91,237 41,740 118.6% 45,774
Inventory 35,431 42,720 (17.1%) 42,316
Short Term Debt(b) 35,722 42,501 (16.0%) 45,619
Long Term Debt 142,016 154,021 (7.8%) 179,389
Equity 299,166 263,586 13.5% 231,076
Total Assets 615,806 588,968 4.6% 578,126
Inventory Turnover (Days)(c) 31 38 44
Debt to Equity 59.4% 74.6% 97.4%
Net Debt to Equity 29.4% 59.4% 78.4%

- Unaudited, prepared by AUO on a consolidated basis

(a) Effective 2Q07, AUO's consolidated financial statement incorporated CFI into
consolidated entity

(b) Short term debt refers to all interest bearing debt maturing within one year

(c) Calculated by dividing the average inventory into the annualized cost of
goods sold during such period, then multiplying by 365 days

5 AUO Proprietary & Confidential

Consolidated Cash Flow Highlights


4Q'07(a) 3Q'07(a) QoQ FY2007(a)

From Operating Activities 75,722 43,384 32,337 156,924
Net Profit 33,092 22,571 10,521 56,476
Depreciation & Amortization 20,541 21,141 (600) 81,706
Net Change in Working Capital 23,756 120 23,637 20,080
From Investing Activities (9,815) (12,496) 2,682 (67,724)
Capital Expenditure (10,197) (11,490) 1,293 (65,137)
From Financing Activities (16,543) (10,687) (5,856) (44,817)
Net Change in Debt (16,633) (8,919) (7,714) (43,591)
Net Change in Cash(b) 49,853 20,002 29,851 45,964


- Unaudited, prepared by AUO on a consolidated basis

(a) Effective 2Q07, AUO's consolidated financial statement incorporated CFI into
consolidated entity

(b) In addition to cash generated from operating, investing and financing
activities, net change in cash also included effect on change of consolidated
entities and effect on currency exchange of foreign subsidiaries


6 AUO Proprietary & Confidential

Consolidated Revenues by Application


42% 34% 31% 30% 28% 24% 28% 21% 19% 18% 17% 8% 9% 9% 36% 35% 39% 47%42% 18%16%
3% 3% 4%3% 3% 3% 11% 9%10% 0%

2006 1Q07 2Q07 3Q07 4Q07 2007


TV Monitor Notebook General Display & Others AV / MD

- Unaudited, prepared by AUO on a consolidated basis

7 AUO Proprietary & Confidential

Large Panel - ASP by Unit

PC-ASP/unit TV-ASP/unit Large Panel-ASP/unit

ASP (US$)

$117 $105 $110 $122 $126 $324 $305 $301 $334 $339 $158 $141 $151 $173 $187 $0
$100 $200 $300 $400 $500


- Unaudited, prepared by AUO on a consolidated basis

- Large size refers to panels that are 10 inches and above

- Blended ASP in US$ was translated from NT$ based on average exchange rates
announced by Directorate General of

Customs, ROC Ministry of Finance of each respective quarter


8 AUO Proprietary & Confidential

Consolidated Shipments & ASP by Area

(K m2)                                                                     (US$)

1,965 1,858 2,425 3,050 3,441 $1,468 $1,310 $1,325 $1,378 $1,387

4Q06 1Q07 2Q07 3Q07 4Q07 $2,000 -$1,000 $0 $1,000 $2,000

Shipments in square meter (K) ASP per square meter

- Unaudited, prepared by AUO on a consolidated basis
- ASP per square meter in US$ was translated from NT$ based on the noon buying
rate of each respective quarter

9 AUO Proprietary & Co

Consolidated Small & Medium Panel
Shipments & Revenues

                                                                        Revenues
Unit (mn)                                                                (NT$bn)

48.0 22.1 32.2 40.7 24.5 $7.6 $6.5 $8.3 $11.2 $14.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
4Q06 1Q07 2Q07 3Q07 4Q07 nit (mn) $0.0 $3.0 $6.0 $9.0 $12.0 $15.0

Shipments (mn) Revenues (NT$bn)

- Unaudited, prepared by AUO on a consolidated basis
- Small & Medium size refers to panels that are under 10 inches


10 AUO Proprietary & Confidential

Capacity by Fab


3A (G3.5) 610 x 720 40,000 40,000 3B (G3.5) 610 x 720 20,000 LTPS 20,000
LTPS 3C (G3.5) 600 x 720 60,000 60,000 3D (G3.5) 620 x 750 25,000 30,000
4A (G4.0) 680 x 880 60,000 60,000 5A (G5.0) 1100 x 1250 50,000 50,000 5B
(G5.0) 1100 x 1300 70,000 70,000 5C (G5.0) 1100 x 1300 120,000 120,000 5D
(G5.0) 1100 x 1300 70,000 70,000 6A (G6.0) 1500 x 1850 120,000 120,000 6B
(G6.0) 1500 x 1850 90,000 90,000 7A (G7.5) 1950 x 2250 60,000 60,000


- Capacity based on monthly glass substrate input

11 AUO Proprietary & Con

www.auo.com
ir@auo.com


12 AUO Proprietary & Confidential