ACTIVE MATRIX LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME

• Main Author: TOMIHARI YOSHINORI
• Format: Patent
• Language: English
• Published: 25.08.2005
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

PROBLEM TO BE SOLVED: To inexpensively realize light reflection performance and an electrolytic corrosion preventing effect equivalent to the case of constructing wiring with silver only, by constructing the wiring with a layered product of a metal layer composed of aluminum or an aluminum alloy and that composed of silver or a silver alloy. SOLUTION: The wiring 9 composed of a first metal layer 9a composed of an aluminum film or an aluminum alloy film and a second metal layer 9b composed of a silver film or a silver alloy film patterned in the same shape as that of the first metal layer 9a is formed on a second interlayer insulating film 8. The wiring 9 is patterned so as to be superposed on respective gate lines 5 and respective data lines 7 of a corresponding TFT and is disposed so as to cover the TFT. COPYRIGHT: (C)2005,JPO&NCIPI