AGREEMENT

Exhibit 10.50

AGREEMENT

THIS AGREEMENT, entered into this 3 November, 2005 by and between

Cambridge Display Technology, Inc. with an office address of 160 Greentree Drive, Suite 101, Dover, Delaware 19904, United States of America, hereinafter referred to as “CDT”

and

Koninklijke Philips Electronics N.V., having its principal place of business at Groenewoudseweg 1, 5621 BA Eindhoven, the Netherlands, hereinafter referred to as “Philips”.

CDT and Philips will hereinafter jointly be referred to as “the Parties” and separately as “a Party”.

WITNESSETH:

WHEREAS, Gretag Imaging and Litrex Corporation (now known as Litrex Corporation) and Philips have worked on a project as defined in the joint development agreement concluded between them on January 1, 2001 (“the Joint Development Agreement”);

WHEREAS Litrex is, at the date first written above, 100 % owned and/or controlled by Ulvac, Inc. a Japanese corporation;

WHEREAS, based on results obtained in the context of said Joint Development Agreement Litrex has filed certain patent applications;

WHEREAS, in order to compromise certain disputes (1) between the Parties and (2) between Litrex and Philips relating to such patent applications, the Parties have agreed that

NOW, THEREFORE, in consideration of the premises and the mutual agreements herein contained, the parties agree as follows:

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Article 1

As used in this Agreement, the following terms shall have the following meanings:

Article 2

EURO bank account no. 8923019 of Koninklijke Philips

Electronics N.V. - Licenses, with the Citibank N.A., London, swiftcode

CITIGB2L, sortcode 185008, reference: “Litrex”.

IBAN: GB61CITI18500808923019

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Article 3

Article 4

Except as otherwise specifically provided herein, any notice or communication required or permitted hereunder shall be in writing, which shall be deemed to include facsimile and may be sent by facsimile or prepaid registered airmail, addressed to the Party concerned at such address as such Party shall have notified to the Party giving notice in writing for that purpose, failing which at the registered office or principal place of business of the Party receiving the notice.

The date of giving of any such notice, receipt, report or other communication shall be the date the facsimile transmitted. The Post Office receipt showing the date of deposit shall be prima facie evidence of these facts in respect of postal transmission.

Any notices supplied under this Agreement shall be sent to the following individuals:

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Article 5

Nothing contained in this Agreement shall be construed as an obligation to secure or maintain in force any of the Patent Rights.

Article 6

Each of the Parties undertakes to maintain the confidentiality of the terms and conditions of this Agreement, provided that the Parties may disclose the existence and the terms and conditions of this Agreement as required to enforce their rights hereunder, or as otherwise may be required by law.

Article 7

This Agreement shall be construed, and the performance thereof shall be enforced, in accordance with the laws of the Netherlands.

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed as of the day and year above first written.

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EXHIBIT A

Patent Rights:

- US provisional application 60/295,100 filed 1 June 2001 or 60/295,118 filed 1 June 2001

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