표제지
목차
요약 4
I. 서론 8
1. 연구 배경 8
2. 연구 목적 10
II. 이론적 고찰 11
1. 터치스크린패널 11
2. 하이브리드 투명 전극 15
III. 유연 투명 정전용량형 압력 센서 제작 17
1. 은나노와이어·전도성고분자 하이브리드 필름 제작 17
2. 유연 투명 정전용량형 압력 센서 제작 19
1) 구조 및 전극 설계 19
2) 제작 공정 21
IV. 유연 투명 정전용량형 압력 센서 특성 평가 25
1. 은나노와이어·전도성고분자 하이브리드 필름 특성 25
1) 면 저항 25
2) 광학 특성 26
3) 굽힘 특성 28
4) 환경 신뢰성 30
2. 유연 투명 정전용량형 압력 센서 특성 평가 32
1) 광학 특성 32
2) 정전용량 특성 33
3) 굽힘 특성 36
V. 결론 38
참고문헌 39
Abstract 43
Table 2.1. In-direct type touch screen panel 14
Table 2.2. Direct type touch screen panel 14
Table 3.1. Process redpe of flexible transparent capacitive pressure sensor 22
Table 4.1. Sheet resistance of AgNW/PEDOT:PSS films 26
Table 4.2. Transmissivity and haze of AgNW/PEDOT:PSS films 27
Table 4.3. Results of AgNW/PEDOT:PSS in high temperature and high humidity test 31
Table 4.4. Results of AgNW/PEDOT:PSS in thermal shock test 31
Table 4.5. Transmissivity and haze of flexible transparent capaditive pressure sensor 32
Fig. 1.1. Various applications using touch screen panel 9
Fig. 1.2. Basic gestures for most touch commands 9
Fig. 1.3. Evolution for flexible devices 9
Fig. 1.4. Apple 3D touch and Huawei Force touch 10
Fig. 2.1. Main features according to touch screen panel types 13
Fig. 2.2. Classification of Capacitive touch screen panel 13
Fig. 3.1. Process of the AgNW/PEDOT:PSS hybrid films... 18
Fig. 3.2. SEM image of AgNW/PEDOT:PSS hybrid films... 18
Fig. 3.3. Capacitance array with driving lines and sensing lines 19
Fig. 3.4. Unit capacitive cell in capacitance array 20
Fig. 3.5. Electrode pattern design of flexible transparent capacitive pressure sensor... 21
Fig. 3.6. Top and bottom electrode assembly process with gap block 23
Fig. 3.7. Flexible transparent capacitive pressure sensor 24
Fig. 4.1. Sheet resistance measurement system (AiT CMT-SR1000N) 25
Fig. 4.2. Measurement point of sheet resistance, transmissivity and haze 26
Fig. 4.3. Haze meter (NIPPON DENSHOKU, NDH-5000) 27
Fig. 4.4. Critical bending radius of ITO and AgNW/PEDOT:PSS films 28
Fig. 4.5. Optical microscope image of AgNW/PEDOT:PSS film crack 29
Fig. 4.6. Results of AgNW/PEDOT:PSS in outer bending fatigue test 29
Fig. 4.7. Temperature and humidity chamber (Espec, SH-241) 30
Fig. 4.8. Measurement point of flexible transparent capacitive pressure sensor 32
Fig. 4.9. TCS-1000(FT Lab) 34
Fig. 4.10. Capacitance of flexible transparent capacitive pressure sensor 34
Fig. 4.11. Touch screen panel system 35
Fig. 4.12. 3D vision of initial capacitance CDC value 35
Fig. 4.13. Results of multi touch and multi force touch 36
Fig. 4.14. Flexibility test of flexible transparent capacitive pressure sensor 36
Fig. 4.15. Bending touch test 37
Fig. 4.16. CDC characteristics according to side bending 37
Fig. 4.17. CDC characteristics according to bending radius 37