Point addressable display assembly, method of operating same, an

Details Point addressable display assembly, method of operating same, an Point addressable display assembly, method of operating same, an

1994-08-10

1997-09-09

Liang, Regina D.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 92, G09G 336

Patent

active

056661304

ABSTRACT:
A method of operating a liquid crystal display, and a liquid crystal display constructed to operate in accordance with the method. The liquid crystal display has a plurality of display pixels, and the method comprises the steps of (a) operating a first switch (S1) for storing a charge on a storage capacitance (C1), the charge having a magnitude selected so as to cause a desired degree of polarization of a region (pixel) of liquid crystal material; (b) operating a second switch (S2) so as to conductively couple the stored charge to the region of liquid crystal material, thereby storing a charge on a capacitance (C2) that is associated with the region of liquid crystal material; and (c) operating a third switch (S3) so as to discharge the storage capacitance and the capacitance that is associated with the region of liquid crystal material. Also disclosed is a method of fabricating a display assembly that comprises a layer of liquid crystal material and a plurality of drive circuits that are formed within a common layer of semiconductor material.

REFERENCES:
patent: 4651149 (1987-03-01), Takeda et al.
patent: 4870396 (1989-09-01), Shields
patent: 5204659 (1993-04-01), Sarma
patent: 5448258 (1995-09-01), Edwards

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