News

VIEWSONIC PREVAILS IN PATENT INFRINGEMENT CASE

Walnut, Calif.,Dec. 13, 2005 – ViewSonic® Corp., a worldwide leader in visual display products, today announced that it has prevailed in a lawsuit brought by LG Philips LCD Co., Ltd., regarding UK Patent GB2346464B, entitled, "Portable computer," which concerns rear mounting of an LCD panel in a housing. LG Philips brought the case against Tatung (UK) Limited (a ViewSonic supplier), ViewSonic Europe Limited, the European subsidiary of ViewSonic Corp., and a ViewSonic customer in the United Kingdom .

His Honour Judge Fysh QC, a Patents County Court judge in London, England, agreed with ViewSonic and Tatung that the products alleged to infringe, including ViewSonic's VX2000, do not infringe the LG Philips patent. In a comprehensive ruling, Judge Fysh, QC, declared that 1) LG's application to amend the patent was refused and the action was dismissed; 2) even if LG's amendments had been allowed, the patent, in its amended form, would be invalid for lack of inventive step and should be revoked; and 3) in the event that the amendments had been allowed and the patent was declared valid, the patent was not infringed by the ViewSonic VX2000, nor the Tatung CCTV. The judge further ordered that LG Philips reimburse ViewSonic and Tatung a portion of the costs of litigation pending its efforts to appeal.

"It is ViewSonic's practice to vigorously defend patent actions," said Robert J. Ranucci, VP General Counsel of ViewSonic Corp., "and we are obviously very pleased with this Court's ruling. ViewSonic also wishes to acknowledge the assistance and team-work of co-defendant Tatung Corporation and the outstanding trial team from Wragge & Co. LLP; David Barron and Alexandra Brodie, as well as ViewSonic's U.S. outside counsel from Bingham McCutchen LLP; Scott Miller and Tracy Roman, and ViewSonic's European Legal Counsel; Thomas Bucknall for their contributions to ViewSonic's strategy and successful defence in this matter."

About ViewSonic
ViewSonic® Corp., a worldwide leader in visual display products, offers comprehensive display solutions for today's business, education and consumer electronics markets. The company's products have won more than 2,000 awards globally from independent publications and organizations.

Headquartered in Walnut, Calif . ViewSonic was founded in 1987 and is a privately held corporation. For further information, please contact ViewSonic Corp. at tel: 800.888.8583 or 909.869.7976; fax: 909.468.3736; or www.ViewSonic.com.

Forward-looking Statements
This press release contains forward-looking statements, including all statements relating to the performance expectations of ViewSonic products, business opportunities or financial performance. These statements are subject to risks and uncertainties that could cause actual results to be materially different than expectations. Such risks and uncertainties include, but are not limited to, ViewSonic's dependence on third-party manufacturers; its need to maintain and expand its sales channels; market acceptance of ViewSonic's products; general industry trends, including cyclical trends in the PC and visual display industries; and the impact of competitive products and pricing alternatives. Investors are advised to read ViewSonic's Form 10 filed with the Securities and Exchange Commission, particularly the section entitled "Factors that May Affect ViewSonic's Business and Financial Results."

Undue reliance should not be placed on these forward-looking statements, which speak only as of the date of this press release. All forward-looking statements are qualified in their entirety by this cautionary statement, and ViewSonic undertakes no obligation to revise or update any forward-looking statements to reflect events or circumstances after the date hereof.

Trademark footnote: All corporate names and trademarks are the property of their respective companies.