Liquid crystal display device with control capacitor for gray sc

Details Liquid crystal display device with control capacitor for gray sc Liquid crystal display device with control capacitor for gray sc

1994-03-24

1996-05-28

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 87, G02F 11343

Patent

active

055217290

ABSTRACT:
Each pixel electrode of a liquid crystal display device is divided into a plurality of subpixel electrodes, which are separated by a gap from each other, and a control capacitor electrode is provided opposite at least one of the subpixel electrodes through a first insulating film. The control capacitor electrode has a region extending the entire length of the gap so that a drive voltage can be applied to liquid crystal in the gap. The control capacitor electrode forms a control capacitor connected in series with a liquid crystal capacitor formed by the above-said at least one subpixel electrode between it and a common electrode corresponding thereto. An additional capacitor electrode, which is opposite the said at least one subpixel electrode through a second insulating film, is formed, by which is formed an additional capacitor equivalently in parallel to the liquid crystal capacitor.

REFERENCES:
patent: 4840460 (1989-06-01), Bernot et al.
patent: 5126865 (1992-06-01), Sarma

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