POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and appoints each of Michael 
Peter Black, Adrian George Rainey and Stephen Beverley Chandler and each of them 
individually, the undersigned's true and lawful attorney-in-fact to:
(1)        execute for and on behalf of the undersigned, in the undersigned's capacity as an 
Officer and/or Director of Cambridge Display Technology, Inc. (the "Company"), 
Forms 3, 4 and 5 and any other forms required to be filed in accordance with 
Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder (a 
"Section 16 Form") and a Form ID and any other forms required to be filed or 
submitted in accordance with Regulation S-T promulgated by the United States 
Securities and Exchange Commission (or any successor provision) in order to file 
the Section 16 Forms electronically (a "Form ID", and, together with the Section 
16 Forms, a "Form");
(2)        do and perform any and all acts for and on behalf of the undersigned which may 
be necessary or desirable to complete and execute any such Form, complete and 
execute any amendment or amendments thereto, and timely file such form with 
the United States Securities and Exchange Commission and the Nasdaq National 
Market; and
(3)        take any other action of any type whatsoever in connection with the 
foregoing which, in the opinion of each such attorney-in-fact, may be of 
benefit to, in the best interest of, or legally required by, the undersigned, it 
being understood that the documents executed by each such attorney-in-
fact on behalf of the undersigned pursuant to this Power of Attorney shall 
be in such form and shall contain such terms and conditions as he may 
approve in his discretion.
The undersigned hereby grants to each such attorney-in-fact full power and authority to 

do and perform any and every act and thing whatsoever requisite, necessary or proper to 
be done in the exercise of any of the rights and powers herein granted, as fully to all 
intents and purposes as the undersigned might or could do if personally present, with full 
power of substitution or revocation, hereby ratifying and confirming all that each such 
attorney-in-fact, or his substitute or substitutes, shall lawfully do or cause to be done by 
virtue of this Power of Attorney and the rights and powers herein granted.  The 
undersigned acknowledges that each such attorney-in-fact is serving in such capacity at 
the request of the undersigned, and is not assuming, nor is the Company assuming, any of 
the undersigned's responsibilities to comply with Section 16 of the Securities Exchange 
Act of 1934.
The Power of Attorney shall remain in full force and effect until the undersigned is no 
longer required to file any Forms pursuant to Section 16(a) of the Securities Exch
ange 
Act of 1934 and the rules thereunder, with respect to the undersigned's holdings of and 
transactions in securities issued by the Company, unless earlier revoked by the 
undersigned in a signed writing delivered to each such attorney-in-fact.
From and after the date hereof, any Power of Attorney previously granted by the 
undersigned concerning the subject matter hereof is hereby revoked.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be 
executed as of this 9th day of December, 2004.
                                                        /s/ James V. Sandry 
                    &nb
sp;                                    Signature
                                                        James V. Sandry 
                                                        Print Name
 
 
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Sandrypoa.txt
 
Sandrypoa.txt