Patent ID: 9268181
Filing Date: 2016-02-23
CPC Classification: G02F

Claim Text:
1. A liquid crystal display device comprising: a TFT substrate having a first area and a second area, a counter substrate provided over the first area of the TFT substrate and not provided over the second area of the TFT substrate, a liquid crystal layer provided between the TFT substrate and the counter substrate, a display area is formed in the first area of the TFT substrate, the display area including scan lines extending in a first direction and arranged at a first pitch in a second direction, image signal lines extending in the second direction and arranged at a second pitch in the first direction, and pixels arranged in a matrix form; and an IC driver having a rectangular shape provided in the second area of the TFT substrate, wherein the IC driver has terminals arranged at a third pitch, wherein the third pitch is smaller than the first or second pitch, wherein the image signal line is connected to the IC driver by a lead line, wherein the lead line has a connecting portion connected to the image signal line, a diagonal wiring portion extending in the diagonal direction with respect to the second direction, and a straight wiring portion, formed in the second area, extending in the second direction with the third pitch and connected to the IC driver, wherein the lead line is bridged by bridging ITO in the straight wiring portion, the straight wiring portion is formed in the second area of the TFT substrate, wherein the length of the bridging ITO in the lead line connected to the terminal in the center in a longitudinal direction of the rectangular IC driver is longer than the length of the bridging ITO in the lead line connected to the terminal on the outside in the longitudinal direction of the rectangular IC driver, wherein the lead line is directly superposed with the bridging ITO at a connecting portion without using a through hole, and wherein the bridging ITO is covered by an insulating layer, which is simultaneously formed as an insulating layer in the display area.