Patterning method of liquid crystal display device

Details Patterning method of liquid crystal display device Patterning method of liquid crystal display device

2006-03-17

2009-06-09

Parker, Frederick J (Department: 1792)

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

C427S469000

Reexamination Certificate

active

07544395

ABSTRACT:
A patterning method of a liquid crystal display (LCD) device is disclosed, to prevent a pattern material from having a swelling portion when using a printing method, thereby obtaining preciseness in patterning, the patterning method including a first step for coating a pattern material containing charged particles on a printing roll having a blanket adhered thereto; a second step for rolling the printing roll on a printing plate having a plurality of projections for printing some pattern material on the projections of the printing plate and form a predetermined pattern on the blanket of the printing roll with the pattern material remaining on the blanket; and a third step for rolling the printing roll on a substrate to re-print the predetermined pattern of pattern material on the substrate, wherein the first step includes applying a voltage of the opposite polarity to the pattern material to the printing roll.

REFERENCES:
patent: 5041843 (1991-08-01), Tohyama et al.
patent: 5191834 (1993-03-01), Fuhrmann et al.
patent: 5279224 (1994-01-01), Sprunger
patent: 5555809 (1996-09-01), Hirt et al.

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