Liquid crystal display contact structure having conducting space

Details Liquid crystal display contact structure having conducting space Liquid crystal display contact structure having conducting space

1998-03-24

1999-11-09

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

G02F 11339

Patent

active

059824719

ABSTRACT:
There is disclosed a contact structure for electrically connecting conducting lines formed on a first substrate of an electrooptical device such as a liquid crystal display with conducting lines formed on a second substrate via conducting spacers while assuring a uniform cell gap among different cells if the interlayer dielectric film thickness is nonuniform across the cell or among different cells. A first conducting film and a dielectric film are deposited on the first substrate. Openings are formed in the dielectric film. A second conducting film covers the dielectric film left and the openings. The conducting spacers electrically connect the second conducting film over the first substrate with a third conducting film on the second substrate. The cell gap depends only on the size of the spacers, which maintain the cell gap.

REFERENCES:
patent: 3954325 (1976-05-01), Borden
patent: 4231034 (1980-10-01), Bechteler
patent: 5619358 (1997-04-01), Tanaka et al.

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