Ferroelectric liquid crystal display having gray steps or a continuous gray scale

摘要

PCT No. PCT/EP90/00761 Sec. 371 Date Nov. 27, 1991 Sec. 102(e) Date Nov. 27, 1991 PCT Filed May 11, 1990 PCT Pub. No. WO90/15360 PCT Pub. Date Dec. 13, 1990.A ferroelectric liquid crystal switching or display device, in which the liquid crystal film has a constant thickness, wherein one of the glass sheets in the device is planar and the other glass sheet has at least one step. The switching or display device of the present invention does not require shortened switching times or more contacts or drivers and does not show unwanted switching.