Methods of manufacturing liquid crystal display devices with red

Details Methods of manufacturing liquid crystal display devices with red Methods of manufacturing liquid crystal display devices with red

1997-05-13

1998-09-08

Sikes, William L.

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349150, 349187, G02F 11333, G02F 11345, G02F 113

Patent

active

058052461

ABSTRACT:
Methods of manufacturing liquid crystal display devices with reduced susceptibility to electrostatic discharge faults include delaying the removal of an electrostatic shorting bar from a liquid crystal display substrate until after a display driver has been electrically coupled to the control lines (e.g., data and gate lines) on the display substrate. Thus, in contrast to the prior art, electrostatic discharge faults can also be prevented during the step of electrically coupling display drivers to the display substrate. A preferred method includes the steps of forming a first substrate comprising a thin-film transistor display region, a plurality of data and gate lines coupled to the display region and an electrostatic shorting bar electrically interconnecting the data and gate lines together, and then electrically connecting a second substrate (e.g., printed circuit board) comprising a display driver circuit, before electrically disconnecting the electrostatic shorting bar from the plurality of control lines. Here, the step of electrically disconnecting the shorting bar from the control lines is preferably performed by removing the shorting bar from the first substrate using a cutting tool such as a saw or laser. The step of removing the shorting bar is also preferably performed at an edge of the first substrate which extends opposite an edge to which the second substrate (containing the driver circuit) is attached.

REFERENCES:
patent: 5327267 (1994-07-01), Aoki et al.
patent: 5353142 (1994-10-01), Dodd
patent: 5504348 (1996-04-01), Yoshida et al.
patent: 5668032 (1997-09-01), Holmberg et al.

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