Active matrix liquid crystal display and method with two anodiza

Details Active matrix liquid crystal display and method with two anodiza Active matrix liquid crystal display and method with two anodiza

1997-01-14

1999-03-09

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular excitation of liquid crystal

Electrical excitation of liquid crystal

349 38, 349 43, 438 30, G02F 11343, G02F 1136

Patent

active

058807942

ABSTRACT:
A method for manufacturing an AMLCD with TFTs comprises the steps of: depositing a metal layer on a glass substrate; forming gate bus line pads, gate bus lines, gate electrodes, and storage capacitance electrodes by patterning the metal layer; forming a first anodized layer on the gate bus line pads, gate bus lines, gate electrodes, and storage capacitor electrodes; and forming a second anodized layer on the first anodized layer except portions thereof overlying the gate bus line pads and the storage capacitance electrode. Accordingly, hillocks, resulting from overetching of the metal layer by a photoresist developer can be prevented, and the capacitance of the storage capacitance electrode is increased. Also, the second anodized layer improves electrical isolation between conductive components of the LCD.

REFERENCES:
patent: 5402254 (1995-03-01), Sasano et al.

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