| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an excellent liquid crystal medium. <P>SOLUTION: The liquid crystal medium is characterized by comprising one or more compounds represented by formula I (wherein, R<SP>1</SP>, R<SP>2</SP>and X<SP>1</SP>to X<SP>12</SP>have each a meaning described in claim 1). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
