- Patent Title: Dual bank structure for improved extraction from an emissive layer
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Application No.: US17320040Application Date: 2021-05-13
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Publication No.: US11871610B2Publication Date: 2024-01-09
- Inventor: David James Montgomery , Peter John Roberts
- Applicant: SHARP KABUSHIKI KAISHA
- Applicant Address: JP Sakai
- Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee: SHARP KABUSHIKI KAISHA
- Current Assignee Address: JP Sakai
- Agency: ScienBiziP, P.C.
- Main IPC: H10K50/85
- IPC: H10K50/85 ; H10K50/856 ; H10K50/854 ; H10K50/858 ; H10K59/122 ; H10K59/173 ; H10K50/818 ; H10K50/828 ; H10K102/00

Abstract:
A light-emitting structure includes a substrate, a sub-pixel stack over a surface of the substrate, and a bank including a first bank portion and a second bank portion. The sub-pixel stack has an emissive stack including an emissive layer between a first transport layer and a second transport layer, a first electrode layer coupled to the first transport layer, and a second electrode layer coupled to the second transport layer. The second bank portion is between the first bank portion and the sub-pixel stack, and the bank surrounding at least the emissive stack and the first electrode layer forms an interior space above the sub-pixel stack.
Public/Granted literature
- US20220367837A1 DUAL BANK STRUCTURE FOR IMPROVED EXTRACTION FROM AN EMISSIVE LAYER Public/Granted day:2022-11-17
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