Liquid crystal cells – elements and systems – Particular structure – Interconnection of plural cells in parallel
Patent
1997-07-29
1998-12-08
Sikes, William L.
Liquid crystal cells, elements and systems
Particular structure
Interconnection of plural cells in parallel
349 56, 349 8, 349192, 348745, 348747, 345 1, 353 34, G02F 11333, G02F 11335, H04N 322, H04N 3223
Patent
active
058477845
ABSTRACT:
A self adjusting tiled image display system and method is provided. In operation, an image source having an array of tiled image displays projects a test image pattern. A positioning device is attached to a corresponding one of the image displays for positioning that image display. A sensor senses the test image pattern projected by the image displays and generates a sensor signal indicative of the sensed test image pattern. A processor compares the sensor signal to a proper alignment signal indicative of the image displays being properly aligned to generate a positioning signal. The processor applies the positioning signal to the positioning devices to position the image displays as a function of the positioning signal until the image displays are in the proper alignment.
REFERENCES:
patent: 5020116 (1991-05-01), Macaulay
patent: 5434595 (1995-07-01), Macaulay
patent: 5465121 (1995-11-01), Blalock et al.
patent: 5555035 (1996-09-01), Mead et al.
patent: 5742698 (1998-04-01), Minami et al.
Finnila Ronald M.
Mead Donald C.
Grunebach Georgann S.
Gudmestad Terje
Hughes Electronics Corporation
Parker Kenneth
Sales Michael W.
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