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Journal Article
A Prototype Active-matrix OLED using Graphene Anode for Flexible Display Application
- Authors
- O Eun Kwon, Jin-Wook Shin, Himchan Oh, Chan-mo Kang, Hyunsu Cho, Byoung-Hwa Kwon, Chun-Won Byun, Jong-Heon Yang, Kang Me Lee, Jun-Han Han, Nam Sung Cho, Jong Hyuk Yoon, Seung Jin Chae, Jin Sung Park, Hyunkoo Lee, Chi-Sun Hwang, Jaehyun Moon, Jeong-Ik Lee
- Issue Date
- 2020-02
- Citation
- Journal of Information Display, v.21, no.1, pp.49-56
- ISSN
- 1598-0316
- Publisher
- 한국정보디스플레이학회
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Gen 2, Large-area graphene, OLED display, Oxide TFTs, Patterned graphene, Surface contamination, Technical feasibility, emissive layer(EL), flexible display, flexible substrate, graphene anode
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
