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:
Sep. 22, 2020
Filed:
Mar. 15, 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, TW;
WISECHIP SEMICONDUCTOR INC., Zhunan Township, TW;
TETRAHEDRON TECHNOLOGY CORPORATION, Zhunan Township, TW;
SHINE MATERIALS TECHNOLOGY CO., LTD., Kaohsiung, TW;
Abstract
An organic light-emitting diode including an anode, a cathode, and a luminescent layered structure disposed between the anode and the cathode. The luminescent layered structure has a luminescent layer, a sensitizer layer and a guiding material. The luminescent-layer singlet state is two times higher than the luminescent-layer triplet state. The sensitizer layer has a sensitizer-layer triplet state between the luminescent-layer singlet state and the luminescent-layer triplet state. The guiding material has a guiding-material triplet state between the sensitizer-layer singlet state and the sensitizer-layer triplet state. The energy of molecules at the sensitizer-layer singlet state is transferred to the guiding-material triplet state and then to the sensitizer-layer triplet state, which is then transferred to 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.