| 학회 | 한국재료학회 |
| 학술대회 | 2010년 가을 (11/11 ~ 11/12, 무주리조트) |
| 권호 | 16권 2호 |
| 발표분야 | F. Display and optic Materials and processing(디스플레이 및 광 재료) |
| 제목 | Flexible Oxide TFT on Glass-fabric Reinforced Hybrimer Substrate |
| 초록 | Recently, there have been considerable interests in flexible displays due to their potential merits in terms of being able to fabricate displays that are thin, lightweight, robust, conformable and flexible. To enable a flexible display, a flexible substrate must be used as the fundamental starting component in place of conventional glass substrates. A number of optical films based on organic polymers are widely considered as candidates such as polyethylene naphthalate (PEN), polyether sulfone (PES), polyethylene terephthalate (PET), polycarbonate (PC) and polyimide (PI) etc. However, despite their great flexibility and optical clarity (except PI), the practical use of these films is limited in terms of process temperature and dimensional stability for device fabrication due to their low glass transition temperature (Tg) and high coefficient of thermal expansion (CTE). In this study, we introduce a highly flexible, transparent glass-fabric reinforced composite film (GFRHybrimer) that can be used as flexible substrate having a high optical transparency (~89%) and a low CTE (~13 ppm/oC) equipped with almost Tg-less characteristic [1]. The GFRHybrimer substrate film was fabricated with a sol-gel derived organo-siloxane hybrid material (Hybrimer) as the matrix, reinforced with a woven glass-fabric (E-glass). The high optical transparency of the GFRHybrimer substrate could be obtained by precisely matching refractive index of the matrix and the glass-fabric. Flexible oxide TFT arrays were then successfully fabricated on the GFRHybrimer substrate. Particularly, in the oxide TFT fabrication, a novel facile method for the fabrication of electronic devices on flexible substrate, so-called GreCoSS process (Glass-fabric Reinforced Coating films on Surface-treated Substrate) was applied. With the GReCoSS process, a flexible oxide TFT backplane could be released without using any adhesive (Samsung) and/or laser release technique (EPLaR, Phillips). |
| 저자 | 배병수, 진정호, 고지훈, 양승철 |
| 소속 | 한국과학기술원 신소재공학과 |
| 키워드 | Flexible substrate; Oxide TFT; GFRHybrimer |
