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,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, anda pixel electrode formed on the interlayer insulating film and electrically connected to the source electrode via the through-hole,a counter substrate having a light shielding film, anda liquid crystal layer sandwiched between the transistor substrate and the counter substrate,wherein the pixel electrode covers the side wall of the through-hole, andwherein the pixel electrode has a slit including a first end, and the first end is overlapped with the side wall.
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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
16 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, 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, and a pixel electrode formed on the interlayer insulating film and electrically connected to the source electrode via the through-hole, a counter substrate having a light shielding film, and a liquid crystal layer sandwiched between the transistor substrate and the counter substrate, wherein the pixel electrode covers the side wall of the through-hole, and wherein the pixel electrode has a slit including a first end, and the first end is overlapped with the side wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A liquid crystal display device comprising:
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a transistor substrate including; a gate line, a thin film transistor, having a source electrode, connected to the gate line, 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, and a pixel electrode formed on the interlayer insulating film and electrically connected to the source electrode via the through-hole, a counter substrate having a light shielding film, and a liquid crystal layer sandwiched between the transistor substrate and the counter substrate, wherein the pixel electrode covers the side wall of the through-hole, and wherein the pixel electrode has a first end disposed between an edge of the through hole and the gate line, in a plan view, and the first end is overlapped with the side wall. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification