LIQUID CRYSTAL DISPLAY DEVICE
First Claim
1. A liquid crystal display device comprising:
- a transistor substrate including;
a thin film transistor having a source electrode,a gate signal line driving the thin film transistor,an organic insulating film formed on the thin film transistor and having a through hole which has a side wall,a common electrode formed on the organic insulating film,an interlayer insulating film formed on the common electrode,a pixel electrode formed on the interlayer insulating film, electrically connected to the source electrode via the through hole, and formed of a conductive material,a counter substrate, anda liquid crystal layer sandwiched between the transistor substrate and the counter substrate,wherein the through hole formed in the organic insulating film,the through hole has a cross-section in which a top face is defined on the side of the counter substrate and a bottom face is defined on the side of the source electrode,in a cross-section view, the top face of the through hole is greater than a width of the source electrode.
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Accused Products
Abstract
A liquid crystal display device comprising a TFT substrate having pixels each including a common electrode formed on an organic passivation film, an interlayer insulating film formed so as to cover the common electrode, a pixel electrode having a slit and formed on the interlayer insulating film, a through-hole formed in the organic passivation film and the interlayer insulating film, and a source electrode electrically conducted to the pixel electrode via the through-hole. A taper angle at a depth of D/2 of the through-hole is equal to or more than 50 degrees. The pixel electrode covers part of a side wall of the through-hole but does not cover the remaining part of the side wall of the through-hole. This configuration facilitates the alignment film material to flow into the through-hole, thereby solving a thickness unevenness of the alignment film in vicinity of the through-hole.
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Citations
11 Claims
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1. A liquid crystal display device comprising:
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a transistor substrate including; a thin film transistor having a source electrode, a gate signal line driving the thin film transistor, an organic insulating film formed on the thin film transistor and having a through hole which has a side wall, a common electrode formed on the organic insulating film, an interlayer insulating film formed on the common electrode, a pixel electrode formed on the interlayer insulating film, electrically connected to the source electrode via the through hole, and formed of a conductive material, a counter substrate, and a liquid crystal layer sandwiched between the transistor substrate and the counter substrate, wherein the through hole formed in the organic insulating film, the through hole has a cross-section in which a top face is defined on the side of the counter substrate and a bottom face is defined on the side of the source electrode, in a cross-section view, the top face of the through hole is greater than a width of the source electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification