상세정보
학술지
A Prototype Active-matrix OLED using Graphene Anode for Flexible Display Application
- 발행일
- 202002
- 출처
- Journal of Information Display, v.21 no.1, pp.49-56
- ISSN
- 1598-0316
- 출판사
- 한국정보디스플레이학회
- 협약과제
- 19ZB1200, 임플란터블 능동 전자소자 원천기술 개발, 이정익
- 초록
- From the very first time that graphene was used as a transparent electrode for OLED applications, the emergence of active-matrix (AM)-graphene OLED displays has been envisioned. Realizing this expectation, however, turned out to be difficult. Two obstacles are the growth and transfer of a large-area graphene film and the patterning of a graphene film into pixels. To solve these problems, a process of patterning a graphene film without surface contamination was developed. The fabrication of OLED panels by the patterned graphene anode on Gen 2(370 × 470 mm)-sized and flexible substrates was successfully demonstrated. In this work, oxide TFT arrays were combined as a switching backplane, and a pixelated graphene OLED was used as an emissive layer, to realize AM-graphene OLED displays. To explore the technical feasibility of flexible AM-graphene OLED displays, the aforementioned components were formed on a flexible substrate. For commercial-level production, all the processes that were used were chosen to be compatible with the conventional display processes.
- KSP 제안 키워드
- Flexible substrate, Gen 2, Large-area graphene, OLED display, Oxide TFTs, Patterned graphene, Surface contamination, Technical feasibility, emissive layer(EL), flexible display, graphene anode
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