Active matrix liquid crystal device with opposite substrate having black matrix with larger aperture than active substrate
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United States of America Patent
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Apr 23, 1996
Grant Date -
N/A
app pub date -
Nov 1, 1993
filing date -
Oct 30, 1992
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In an active matrix liquid crystal device assuming a light blocking condition when a voltage is applied, there are provided a main plate formed with a pixel electrode, wiring electrodes and a switching transistor, an opposing plate formed with an opposing electrode, and a liquid crystal material sandwiched between the main plate and the opposing plate, so that a transmission light is irradiated from the main plate side. A light blocking layer acting also as a storage capacitor electrode is provided on the main plate through an insulating layer under the wiring electrode, the switching device and a periphery of the pixel electrode. Thus, it is to prevent light leakage at a boundary of a pixel, and to simultaneously suppress and conceal an orientation abnormality of the liquid crystal occurring at a periphery of the pixel electrode.
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