| Summary: | 碩士 === 國立中興大學 === 精密工程學系所 === 95 === Electrowetting light valve（ELV） is a novel display technology developed in few years ago. For utilization surface tension between different materials, the color oil naturally locates as a film between the droplet and the hydrophobic insulator. By changing the magnitude of electrostatic, color oil spread or contracted in this small system. The light absorbed or passed through the pixel depends on the state of the colored oil. The advantage of ELV are fast response time（＜10ms）, wide view angle, and less process. The insensitivity related to cell-gap thickness is excellent advantage when the electrowetting technology is used in flexible display. In the future, ELVs have high possibility to replace the liquid crystal in TFT-LCD structure.
This thesis investigates the materials, structure and all characteristics of ELV. Both contact angle and surface tension of materials are measured by contact angle measurement. The photolithography processes are developed to define each pixel as pixel grid, and electrodes of both common and multi-domain pixels. Optical parameters, response time ELVs’ pixels are measured by using CCD camera and optical measurement system. For fast response time, multi-domain unit pixel that pixel electrode is divided into two and four domains, is designed and investigated each path when oil is contracted into different domains.
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