Press apparatus used for manufacturing a liquid crystal panel

Details Press apparatus used for manufacturing a liquid crystal panel Press apparatus used for manufacturing a liquid crystal panel

1992-04-22

1993-08-03

Gerrity, Stephen F.

Presses

Automatic or material triggered control

Of parallelism of platens

100 43, 100 50, 100 93P, 100 99, 100258A, 156378, 1565831, 425149, B30B 1526

Patent

active

052319237

ABSTRACT:
A press apparatus for use in manufacture of a liquid crystal panel presses upper and lower glass substrates placed between a pressure-exerting plate and a pressure-receiving plate while a seal located around the glass substrates is being heated and melted. The pressure-exerting plate is supported by a pressure-transmitting plate through three load cells. The pressure-transmitting plate presses the pressure-exerting plate against the pressure-receiving plate through the load cells and thereby presses the glass substrates uniformly. When a difference between the detection values of the load cells exceeds a predetermined value, it is determined that the glass substrates are not being pressed uniformly and the pressing operations thus stopped.

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patent: 4949634 (1990-08-01), Shaner
patent: 5119311 (1992-06-01), Gold et al.

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