Invention Grant
- Patent Title: Electroluminescent display device
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Application No.: US17426069Application Date: 2020-02-05
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Publication No.: US12185570B2Publication Date: 2024-12-31
- Inventor: Gunther Haas , Benoit Dugreni , Michael Thomschke
- Applicant: MICROOLED
- Applicant Address: FR Grenoble
- Assignee: MICROOLED
- Current Assignee: MICROOLED
- Current Assignee Address: FR Grenoble
- Agency: Jordan IP Law, LLC
- Agent Todd A. Vaughn
- Priority: FR1901164 20190206
- International Application: PCT/FR2020/000023 WO 20200205
- International Announcement: WO2020/161400 WO 20200813
- Main IPC: H10K50/852
- IPC: H10K50/852 ; H10K50/13 ; H10K50/15 ; H10K50/16 ; H10K50/17 ; H10K50/18 ; H10K50/828 ; H10K59/12 ; H10K50/125 ; H10K59/40 ; H10K101/00 ; H10K102/00

Abstract:
Matrix display device (100) having organic electroluminescent layers, successively comprising: a substrate, a first control electrode (101), a first light-emitting assembly comprising at least a first organic electroluminescent layer (104), a second light-emitting assembly comprising at least a second organic electroluminescent layer (106), a second electrode (102) that has opposite polarity to said first electrode and that is at least partially transparent with respect to the light emitted by said electroluminescent layers; said control electrode (101) being structured to form a display matrix; said device being characterized in that the product of the mean refraction index of the organic layers and the distance between the surface opposite the substrate of said control electrode (101) and the surface at the substrate side of said second electrode (102) is between 125 nm and 205 nm.
Public/Granted literature
- US20220102684A1 ELECTROLUMINESCENT DISPLAY DEVICE Public/Granted day:2022-03-31
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