청색광 흡수 염료가 도핑된 액정-고분자 셀을 이용한 양자점 발광 제어 = Quantum Dot Emission modulation Using Blue Light Absorbing Dye Doped Liquid Crystal -Polymer cell

다국어 초록 (Multilingual Abstract)

Quantum dot (QD) displays have attracted significant attention as next generation display technologies due to their narrow emission bandwidth and freely tunable emission wavelengths. However, current QD-LCDs still suffer from substantial optical losses caused by the color filters, while QD-OLEDs face limitations such as short device lifetime and high fabrication cost.
To address these issues, this paper proposes a blue light absorbing dye doped liquid crystal-polymer film. This film can be fabricated by doping a blue absorbing dye into a polymer network liquid crystal (PNLC) system fabricated via polymerization-induced phase separation (PIPS). This structure dynamically transmits or blocks incident blue LED backlighting via voltage, allowing for controllable emission intensity of the QD color conversion layer (CCL).
As a result, the photoluminescence contrast ratio (CR) of the QD CCL was enhanced by up to 30.1% at 3 V/um. We expect that this approach will offer a new pathway to overcome multiple challenges of QD-based displays and provide a promising strategy for next-generation display design.

목차 (Table of Contents)

• 1. 서론 1
• 2. 이론적 배경 10
• 3. 실험 재료 및 방법 19
• 4. 실험 결과 34
• 5. 결론 72
• 6. 참고문헌 74
• 7. List of Publishcations 76
• 8. Acknowledgement 80