Back to results
US 2012/0068163 A1Published application
Color conversion film containing a conjugated high molecular weight copolymer and multicolor light-emitting organic el device including the same
AssigneeFuji Electric Holdings Co., Ltd.
InventorMasaru Nagai
Life of this patent
Estimating the term…
Abstract
Provided are a color conversion film that maintains sufficient converted light intensity over a long period of time without increasing its thickness and a multicolor light-emitting organic EL device that includes the color conversion film. The color conversion film contains a conjugated high molecular weight copolymer having a structure of formula (1) that has alternating fluorene group-containing repeating units and arylenevinylene repeating units, and has phenylene groups inserted as spacers on both ends of the fluorene groups.
Claims6
A color conversion film, comprising:
- a conjugated high molecular weight copolymer that has a structure represented by formula (1):
- wherein, Ar represents an arylene group or divalent heterocyclic group, R1 and R2 respectively and independently represent a hydrogen atom, alkyl group, alkoxy group, alkylthio group, alkylsilyl group, alkylamino group, aryl group, aryloxy group, arylalkyl group, arylalkoxy group, arylalkenyl group, arylalkynyl group, monovalent heterocyclic group, amino group, nitro group, halogen group or cyano group, and n represents an integer of 1 to 10000, and
- wherein the conjugated high molecular weight copolymer has a green emission peak wavelength of 490 to 580 nm when in the form of a thin film.
Dependencies are inferred from the claim text.