AU Optronics February 2007 Sales Totaled at NT$22.7 Billion

HSINCHU, Taiwan, March 6 /Xinhua-PRNewswire-FirstCall/ -- AU Optronics Corp. ("AUO" or the "Company") (TAIEX: 2409; NYSE: AUO) today announced preliminary consolidated February 2007 monthly revenues of NT$22,690 million and unconsolidated revenues totaled NT$22,674 million, both decreasing 20.3% from January 2007. On a year-over-year comparison, consolidated and unconsolidated revenues of February 2007 rose by 5.1% and 5.0% respectively.

Due to Chinese New Year and less working days in February, shipments of large-sized panels(a) used in desktop monitor, notebook PC, LCD TV and general display applications, amounted to 4.54 million, a 17.4% decrease from January 2007. Shipments of small- and medium-sized panels totaled 6.02 million, decreasing 12.9% sequentially.

(a) Large-size refers to panels that are 10 inches and above in diagonal

measurement while small- and medium-size refers to those below 10

inches

Sales Report: (Unit: NT$ million)

Net Sales(1) (2) Consolidated(3) Unconsolidated

February 2007 22,690 22,674

January 2007 28,458 28,455

M-o-M Growth (20.3%) (20.3%)

February 2006 21,597 21,594

Y-o-Y Growth 5.1% 5.0%

Jan to Feb 2007 51,148 51,128

Jan to Feb 2006 43,797 43,794

Y-o-Y Growth 16.8% 16.7%

(1) All figures are prepared in accordance with generally accepted

accounting principles in Taiwan.

(2) Monthly figures are unaudited, prepared by AU Optronics Corp.

(3) Consolidated numbers include AU Optronics Corp., AU Optronics (L)

Corporation, AU Optronics (Suzhou) Corporation, AU Optronics

(Shanghai) Corporation and Tech - Well (Shanghai) Display Co.

About AU Optronics

AU Optronics Corp. ("AUO") is one of the top three largest manufacturers* of large-size thin film transistor liquid crystal display panels ("TFT-LCD"), with approximately 20.8%* of global market share with revenues of NT$293.1billion (US$9.0bn)* in 2006. TFT-LCD technology is currently the most widely used flat panel display technology. Targeted for 40"+ sized LCD TV panels, AUO’s new generation (7.5-generation) fabrication facility production started mass production in the fourth quarter of 2006. The Company currently operates one 7.5-generation, two 6th-generation, four 5th-generation, one 4th-generation, and four 3.5-generation TFT- LCD fabs, in addition to eight module assembly facilities and the AUO Technology Center specializes in new technology platform and new product development. AUO is one of few top-tier TFT-LCD manufacturers capable of offering a wide range of small- to large- size (1.5"-46") TFT-LCD panels, which enables it to offer a broad and diversified product portfolio.

* DisplaySearch 2006 WW Large-Area TFT-LCD Shipment Report dated March 1,

2007(AUO market share = pre-merger AUO market share + QDI market share).

This data is used as reference only and AUO does not make any

endorsement or representation in connection therewith. 2006 year end

revenue converted by an exchange rate of NTD32.59:USD1.