Liquid crystal cells – elements and systems – Particular structure – Having significant detail of cell structure only
Patent
1995-12-07
1998-04-07
Gross, Anita Pellman
Liquid crystal cells, elements and systems
Particular structure
Having significant detail of cell structure only
349151, 257621, G03F 11345, H01L 2940
Patent
active
057370524
ABSTRACT:
A liquid crystal display is provided which reduces the substrate cost and shortens the wiring length to drive elements thereby decreasing wiring resistance and load on the drive power supply. A pixel array board is also provided, as well as a manufacturing process and a method for forming an image with the pixel array board. A silicon substrate 1 is used as an LCD pixel array. A through hole is formed in the silicon substrate 1 by means of anisotropic etching or the like. Formed in the through hole are an insulating layer 5 and a wiring conductor layer (for example, Cr--Cu--Au layer) 8 with a predetermined pattern. The wiring conductor layer 8 is bonded to a conductor layer (for example, Cr--Cu--Au layer) 8' of a drive element 10 through a solder layer 9, or by means of thermo-compression bonding between the Cr--Cu--Au layer 8 and the Cr--Cu--Au layer 8' to connect the LCD pixel array on the surface of silicon substrate 1 to the drive element 10 and the like on the bottom of silicon substrate 1.
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IBM Technical Disclosure Bulletin, Wu, "Wafer Structure Permitting Distribution from the Back Side of the Wafer", pp. 2898-9 vol. 16, No. 9, Feb. 1974.
Drumheller Ronald L.
Gross Anita Pellman
International Business Machines - Corporation
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