US 2006/0220024 A1 · Liquid crystal display device and display device

Abstract

The present invention provides a technique which can make an image quality on a screen of a TFT liquid crystal display device uniform. A liquid crystal display device includes a TFT substrate on which TFT circuits are arranged in an array, a counter substrate which is arranged to face a surface of the TFT substrate on which the TFTs are formed, and a liquid crystal material which is filled between the TFT substrate and the counter substrate, wherein in the TFT substrate, assuming a film thickness and a width of a conductive film of the gate electrode lines in a first region thereof as GLD1 and GLW1 respectively, and a film thickness and a width of a conductive film of the gate electrode lines in a second region thereof which differs from the first region as GLD2 and GLW2 respectively, when the relationship GLD1<GLD2 is established, the relationship GLW1>GLW2 is established.

Claims20

Dependent claims

A liquid crystal display device comprising:

a TFT substrate which forms gate electrode lines, data electrode lines, source electrodes, gate insulating films, amorphous silicon (a-Si) films and display electrodes on a transparent substrate thereof, said TFT substrate further including TFTs which are arranged in an array, wherein each TFT is constituted of said gate electrode line, a drain electrode which is branched from said data electrode line, said source electrode, said gate insulating film and said amorphous silicon film;
a counter substrate which is arranged to face a surface of said TFT substrate on which said TFTs are formed;
and
a liquid crystal material which is filled between said TFT substrate and said counter substrate, wherein
in said TFT substrate, assuming a film thickness and a width of a conductive film of said gate electrode lines in a first region thereof as GLD1 and GLW1 respectively, and a film thickness and a width of a conductive film of said gate electrode lines in a second region thereof which differs from said first region as GLD2 and GLW2 respectively, when the relationship GLD1<GLD2 is established, the relationship GLW1>GLW2 is established.

2 more elements

A display device in which a plurality of first electrode lines and a plurality of second electrode lines which are arranged above said plurality of first electrode lines in a state that said second electrode lines intersect said first electrode lines by way of an insulating film are formed on a substrate, and a rectangular display region is formed by said plurality of first electrode lines and said plurality of second electrode lines, wherein

at three arbitrary portions on said display region where said first electrode line and said second electrode line intersect each other, assuming a film thickness and a width of a conductive film of said first electrode line in said first portion as t1 and w1, a film thickness and a width of a conductive film of said first electrode line in said second portion as t2 and w2, and a film thickness and a width of a conductive film of said first electrode line in said third portion as t3 and w3, when the film thickness relationship of t1>t2>t3 is established, the width relationship of w1<w2<w3 is established.

A display device in which a plurality of first electrode lines and a plurality of second electrode lines which are arranged above said plurality of first electrode lines in a state that said second electrode lines intersect said first electrode lines by way of an insulating film are formed on a substrate, and a rectangular display region is formed by the plurality of first electrode lines and the plurality of second electrode lines, wherein

at three arbitrary portions on said display region where said first electrode line and said second electrode line intersect each other, assuming a film thickness and a width of a conductive film of said second electrode line in said first portion as t1 and w1, a film thickness and a width of a conductive film of said second electrode line in the second portion as t2 and w2, and a film thickness and a width of a conductive film of said second electrode line in said third portion as t3 and w3, when the film thickness relationship of t1>t2>t3 is established, the width relationship of w1<w2<w3 is established.

Dependencies are inferred from the claim text.

Liquid crystal display device and display device

Life of this patent

Liquid crystal display device and display device

Life of this patent

Abstract

Claims20