Rubbing apparatus and rubbing method

Details Rubbing apparatus and rubbing method Rubbing apparatus and rubbing method

1998-10-29

2000-05-16

Dudek, James A.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349126, 349187, G02F 11333

Patent

active

060644583

ABSTRACT:
A rubbing apparatus of the present invention for rubbing the substrate of a liquid crystal display element cell, comprises: a jig for enclosing a corner of the substrate; a measuring device for measuring the vertical position of a surface of the substrate and outputting a measured value; a comparison device for comparing the measured value with a vertical position of a surface of the jig; and a jig drive device for moving the jig in a vertical direction based on a signal from the comparison means so as to set a difference between the vertical position of the surface of the jig and the vertical position of the surface of the substrate within a predetermined value.

REFERENCES:
patent: 5315421 (1994-05-01), Kurai et al.
patent: 5459594 (1995-10-01), Nakanishi et al.

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