The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2020
Filed:
Mar. 14, 2019
Yuan Ze University, Chung-Li, TW;
Nichem Fine Technology Co, Ltd., Jhubei, Hsinchu County, TW;
Wisechip Semiconductor Inc., Zhunan Township, Miaoli County, TW;
Tetrahedron Technology Corporation, Zhunan Township, Miaoli County, TW;
Shine Materials Technology Co., Ltd., Kaohsiung, TW;
Jiun-Haw Lee, Chung-Li, TW;
Tien-Lung Chiu, Chung-Li, TW;
Chia-Hsun Chen, Chung-Li, TW;
Pei-Hsi Lee, Chung-Li, TW;
YUAN ZE UNIVERSITY, Chung-Li, TW;
NICHEM FINE TECHNOLOGY CO, LTD., Jhubei, Hsinchu County, TW;
WISECHIP SEMICONDUCTOR INC., Zhunan Township, Miaoli County, TW;
TETRAHEDRON TECHNOLOGY CORPORATION, Zhunan Township, Miaoli County, TW;
SHINE MATERIALS TECHNOLOGY CO., LTD., Kaohsiung, TW;
Abstract
An organic light-emitting diode including an anode, a cathode, and a luminescent layered structure is provided. The luminescent layered structure is disposed between the anode and the cathode. The luminescent layered structure has a luminescent layer and a sensitizer layer. The luminescent layer has a luminescent-layer ground state, a luminescent-layer singlet state and a luminescent-layer triplet state, in which two times of the luminescent-layer triplet state is higher than the luminescent-layer singlet state. The sensitizer layer has a sensitizer-layer triplet state, which is between the luminescent-layer singlet state and the luminescent-layer triplet state. The molecules of the sensitizer layer at the sensitizer layer triplet layer transfers energy to the molecules of the luminescent layer at the luminescent-layer triplet state and triggers triplet-triplet annihilation upconversion in the luminescent layer such that the luminescent layer emits light of a first color.