| 摘要 |
PCT No. PCT/KR94/00106 Sec. 371 Date Jun. 24, 1996 Sec. 102(e) Date Jun. 24, 1996 PCT Filed Aug. 5, 1994 PCT Pub. No. WO96/04586 PCT Pub. Date Feb. 15, 1996The present invention discloses a novel Polymer-Dispersed Ferroelectric Liquid Crystal Display (PDF LCD). The active matrix LCD such as a TFT LCD, the solution of low response speed of nematic LCD, requires very high production costs. The FLCD utilizing ferroelectric liquid crystal exhibits highly rapid response speed, but results in an unstable structure, difficult fabrication, and incompetency of expressing gray scales. Meanwhile, the PD LCD exhibits a simple structure, wide viewing angle and high strength, but low contrast thereof disqualifies it for image displays. The present invention combines the PD LCD and FLCD, that is, droplets of ferroelectric liquid crystal are dispersed in a polymer matrix to include the merits and compensate for the shortcomings of each. As a result, there is provided a novel PDF LCD having very rapid response speed, resistance to external shock or heat, and high contrast. Moreover, the present PDF LCD does not exhibit bistable characteristics to be able to express gray scales, and thus it is suitable for fabricating large area color image displays.
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