| Summary: | 碩士 === 國立交通大學 === 顯示科技研究所 === 96 === In the newly 21th century, the giant super computer in the 20th century has been replaced by small and tiny notebooks or super thin computers. The CRT screen has been replaced by liquid crystal screen with a characteristic that very thin, very small, very light, and moreover, very short. The liquid crystal screen has a distinguishing feature that it responses to the electric field with different reactions. Accompany with different kind of liquid crystals be presented to the public, and some deficiencies with different kind of liquid crystal, like response time and the quality of the moving images, it becomes a new target to the researchers.
Among those different kinds of liquid crystals, optically compensated bend, also known as OCB cell or Pi cell, has a characteristic that its response time is fast and has high contrast ratio. OCB cell was operated at bend and vertical state, and also known has a big deficiency that it needs a voltage bigger than the critical voltage to have the splay state become the bend state, also called as transition.
In this thesis, we will discuss how to use a new material to operate with the original OCB cell and form the OCB cell in a condition without transition and still has the advantages of the original OCB cell.
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