Patent · US Expired

White electroluminescent polymeric material and preparation thereof

US7579091B2 · kind B2 · utility

0Cited by

1References

1Claims

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Assignee

Changchun Institute of Applied Chemistry Chinese Academy of Sciences · CN

Inventors

Lixiang Wang · Changzhou City, CN
Guoli Tu · Changchun, CN
Jianxin Cao · Zhuhai, CN
Jun Liu · Tangxia, CN
Dongge Ma · Changchun, CN
Xia Bin Jing · Changchun, CN
Fosong Wang · Changchun, CN

Key dates

Filing date	Jan 26, 2005
Grant date	Aug 25, 2009
Priority date	—
Expiry date	Oct 8, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

This invention relates to a white electroluminescent polymeric material and preparation thereof. Based on the physical idea that white light emission can be achieved by regulating the relative luminous intensities of blue- and orange-light emitting units located in a single polymer molecule, the present invention provides three types (main chain type, pendant chain type, and terminal group type) of high efficiency and stable white electroluminescent polymeric material systems.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.