| 학회 | 한국재료학회 |
| 학술대회 | 2013년 가을 (11/06 ~ 11/08, 제주롯데호텔) |
| 권호 | 19권 2호 |
| 발표분야 | F. 광기능/디스플레이 재료(Optical Functional and Display Materials) |
| 제목 | Effects of the dispersion of ZnO-graphene quantum dots for liquid crystal display without alignment layer |
| 초록 | The alignment of liquid crystal (LC) molecules on substrate surfaces is the most important factor contributing to the high quality of liquid crystal displays (LCDs). Conventionally, several methods are used to align LC molecules, including mechanical rubbing on a polyimide (PI) layer, ultraviolet alignment, ion-beam bombardment, nanoimprinting on a surface and photolithography treatment. However, these methods all have drawbacks. The rubbing method may incorporate dust particles during the process and may give rise to static electricity between the substrate and the rubbing roller. Ultraviolet alignment, ion-beam bombardment, surface nanoimprinting and photolithography require a surface preparation process or use expensive vacuum equipment and necessitate extended preparation times. LC nanomaterials have received attention as a solution to these problems in recent years. Much research has focused on combining PI and LCs or a nanomaterial and LCs. Doping LCs with nanomaterials such as titanium or carbon nanotubes (CNTs) can produce excellent electro-optical (EO) characteristics in a relatively simple manner. This approach yields fast response times, low driving voltages and memory effects. However, there are many challenges with respect to the self-assembly of quantum dots (QDs) and improvements in the EO properties of LCs. In this study, we investigated doping LCs with ZnO-graphene QDs, which was used in white-light-emitting diodes. We studied the possibility of applying ZnO-graphene QDs in an LCD. |
| 저자 | Min-jae, Cho, Dae-shik, Seo |
| 소속 | Yonsei Univ. |
| 키워드 | quantum dots; liquid crystal |
