Patent ID: 6281865
Filing Date: 2001-08-28
Classification: G02F,G09G,H01L

Abstract:
A liquid crystal display device, comprising:a first insulating substrate having at least one driving circuit having driver thin film transistors, a plurality of signal lines, a plurality of scan lines, pixel region having pixel thin film transistors, clock lines for supplying clock signals to the driver circuit, black matrices covering the pixel thin film transistors, and wiring lines crossing the clock lines or the base portions of the clock lines;a second insulating substrate opposite to the first insulating substrate; anda liquid crystal held between the first and second insulating substrates,wherein each of the clock lines or each of base portions of the clock lines is made of a two-layer structure, lower layer of said two-layer structure comprising the same wiring material as gate electrodes of the driving and pixel thin film transistors and, upper layer of said two-layer structure comprising the same wiring material as source and drain electrodes of the driving and pixel thin film transistors, andwherein said wiring lines are made of the same layer as the black matrices.