Leakage-free solution organic light-emitting diode using ternary host with single-diode emission area up to 6×11.5 cm2

Si Yi Liao, Hsiao Tso Su, Yung Hung Hsiao, Yu Fan Chang, Chiung Wen Chang, Mu Chun Niu, Hsin-Fei Meng, Chun Yen, Yu Chiang Chao, Chih Yu Chang, Hsiao Wen Zan, Sheng Fu Horng

Research output: Contribution to journalConference articlepeer-review

Abstract

The electrical current leakage and stability are studied for solution OLED with areas of 4.45 mm2, 3×3.2 cm2, and 6×11.5 cm2. All organic layers are deposited by blade coating and initial current leaking defects can be avoided by careful control of the coating conditions. The detrimental burning point caused by a local current short developed after long-time operation can be avoided by reducing the operation voltage using ternary mixed host. Furthermore, the crystallization defect is reduced by the ternary host. For orange device the binary host is good enough . For area as large as 6 × 11.5 cm2 the OLED no burning point after an operation over 1600 hours.

Original languageEnglish
Pages (from-to)103-106
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume50
Issue numberS1
DOIs
StatePublished - 2019
EventInternational Conference on Display Technology, ICDT 2019 - Suzhou, China
Duration: 26 Mar 201929 Mar 2019

Keywords

  • Large area
  • Light-emitting diodes
  • Organic
  • Ternary host

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