Invention Grant
- Patent Title: Methods of fabricating OLED panel with inorganic pixel encapsulating barrier
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Application No.: US17498482Application Date: 2021-10-11
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Publication No.: US11476313B2Publication Date: 2022-10-18
- Inventor: Ji-young Choung , Dieter Haas , Yu Hsin Lin , Jungmin Lee , Seong Ho Yoo , Si Kyoung Kim
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson + Sheridan, LLP
- Main IPC: H01L27/32
- IPC: H01L27/32 ; H01L51/56 ; H01L51/52

Abstract:
Embodiments described herein relate to sub-pixel circuits and methods of forming sub-pixel circuits that may be utilized in a display such as an organic light-emitting diode (OLED) display. The device includes a plurality of sub-pixels, each sub-pixel of the plurality of sub-pixels defined by adjacent pixel-defining layer (PDL) structures with inorganic overhang structures disposed on the PDL structures, each sub-pixel having an anode, organic light-emitting diode (OLED) material disposed on the anode, and a cathode disposed on the OLED material. The device is made by a process including the steps of: depositing the OLED material and the cathode by evaporation deposition, and depositing an encapsulation layer disposed over the cathode.
Public/Granted literature
- US20220077257A1 METHODS OF FABRICATING OLED PANEL WITH INORGANIC PIXEL ENCAPSULATING BARRIER Public/Granted day:2022-03-10
Information query
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