Cambridge Display Technology 10-Q 2006 Q2 Quarterly report

Exhibit 32.2

STATEMENT PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

With reference to the Quarterly Report of Cambridge Display Technology, Inc. (the “Company”) on Form 10-Q for the quarterly period ended June 30, 2006 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael Black, Vice-President Finance of the Company, certify, for the purposes of 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ MICHAEL BLACK

MICHAEL BLACK

Vice-President Finance

August 14, 2006