Circuit array substrate for a display device and a method of mak

Details Circuit array substrate for a display device and a method of mak Circuit array substrate for a display device and a method of mak

1999-04-08

2000-07-25

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

G02F 11343

Patent

active

060942487

ABSTRACT:
A circuit array substrate for a display device includes a plurality of parallel signal and scanning lines disposed on an insulation substrate which cross each other at a right angle. The signal lines are made of at least upper and lower laminated layers. The upper layers made of aluminum or aluminum alloy are wider in width at the crossing portions with said scanning lines than the lower layers made of indium tin oxide. If the lower layers have cracks at the crossing portions during their patterning process, the wider upper layers cover the lower layers to keep etchant for the aluminum from soaking into the cracks. Thus, such a structure of the signal lines avoids causing the signal lines to break or malfunction.

REFERENCES:
patent: 5541748 (1996-07-01), Ono et al.
patent: 5956104 (1999-09-01), Hayashi et al.

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