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WO1999020081A2 Expired / Lapsed WO ⏱️ 0.0 years remaining

Highly transparent non-metallic cathodes

Assignee: Princeton University
•
Filing: 1998-10-08
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Granted: —
•
Expires: 2018-10-08
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Abstract

Abstract A novel class of low reflectivity, high transparency, non-metallic cathodes (1) useful for a wide range of electrically active, transparent organic devices is disclosed. As a representative embodiment, the highly transparent non-metallic cathode (1) of an OLED employes a thin film of copper phthalocyanine (CuPc) (6) capped with a film of low-power, radio-frequency sputtered indium-tin-oxide (ITO). The CuPc prevents damage to the underlying organic layers during the ITO sputtering process. Due to the low reflectivity of the non-metallic cathode, a non-antireflection-coated, non-metallic-cathode-containing TOLED is disclosed that is 85 % transmissive in the visible, emitting nearly identical amounts of light in the forward and back-scattered directions.

Inventors

  • 👤 Stephen R. Forrest
  • 👤 Paul Burrows
  • 👤 Gautam Parthasarathy
  • 👤 Diarmuid O'brien
  • 👤 Mark E. Thompson
  • 👤 Yujian Yu
  • 👤 Andrei Shoustikov
  • 👤 Nicos A. Petasis
  • 👤 Scott Sibley
  • 👤 Douglas Loy
  • 👤 Brian E. Koene
  • 👤 Raymond C. Kwong

Bibliographic Details

Application Number —
Jurisdiction WO
Data Source google_patents
Last Synchronized 2026-10-24 23:21
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/43; C07C211/57; C07C211/61; H; H10; H10K; H10K50/00; H10K50/10; H10K50/11; C07D; C07D223/00; C07D223/14; C07D223/18; C07D223/22; C07D223/24; C07D223/26; C07D403/00; C07D403/02; C07D403/10; C07D487/00; C07D487/22; C09; C09K; C09K11/00; C09K11/06; H05; H05B; H05B33/00; H05B33/12; H05B33/14; H05B33/26; H05B33/28; H10K50/14; H10K50/80; H10K50/805; H10K50/82; H10K50/828; H10K71/00; H10K71/60; H10K85/00; H10K85/30; H10K85/311; H10K85/321; H10K85/341; H10K85/371; H10K85/381; H10K85/60; H10K85/631; H10K85/649; H10K85/657; H10K85/6572; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18; C07C2603/22; C07C2603/26; C09K2211/00; C09K2211/10; C09K2211/1018; C09K2211/1025; C09K2211/1029; C09K2211/1033; C09K2211/1074; C09K2211/18; C09K2211/185; C09K2211/186; H10K2101/00; H10K2101/10; H10K2101/90; H10K2102/00; H10K2102/10; H10K2102/101; H10K2102/103; H10K2102/301; H10K2102/302; H10K2102/3023; H10K2102/3026; H10K2102/3031; H10K50/17; H10K50/171; H10K71/10; H10K71/16; H10K85/324; H10K85/615; H10K85/621

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