Polymers for use in optical devices
AssigneeCambridge Display Technology Limited
InventorsAndrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Abstract
Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.
Claims28
A process for the production of an optical device, which process comprises providing a luminescent film-forming solvent processable polymer and cross-linking the solvent processable polymer under conditions so as to increase its molar mass whereby the polymer is made resistant to solvent dissolution and retains its semiconductive and luminescent properties.
A cross-linked semiconductive polymer capable of luminescence in an optical device, and being resistant to solvent dissolution, which polymer is obtainable according to a process comprising providing a luminescent film-forming solvent processable polymer and cross-linking the solvent processable polymer under conditions so as to increase its molar mass whereby the polymer is made resistant to solvent dissolution and retains its semiconductive and luminescent properties.
Dependencies are inferred from the claim text.