Black matrix with conductive coating

Details Black matrix with conductive coating Black matrix with conductive coating

1997-11-20

2000-08-08

Day, Michael H.

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313309, 313336, 313351, 313466, 313477, 313479, 313497, H01J 162, H01J 6304, H01J 3100, H01J 2910

Patent

active

06100636&

ABSTRACT:
A method for forming a conductively coated matrix structure for separating rows and columns of sub-pixels on the faceplate of a flat panel display device. In one embodiment, the present invention deposits a photoresistive material over the interior surface of a faceplate having a non-conductive matrix structure formed thereon. The photoresistive material is deposited into sub-pixel regions separated by the matrix structure. The photoresistive material is dried and exposed in the sub-pixel regions. After unexposed photoresistive material is removed, a layer of aluminum is evaporated over the interior surface of the faceplate such that the matrix structure and the exposed layer of photoresistive material in the sub-pixel regions is coated with a conductive layer of aluminum. Next, the present invention applies an etchant to the exposed photoresistive material disposed in the sub-pixel regions. The etchant removes the exposed photoresistive material and the overlying conductive layer of aluminum from the sub-pixel regions such that the conductive layer of aluminum remains only on the matrix structure, and does not cover the sub-pixel regions.

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