| 摘要 |
To prevent a phenomenon that an alignment film material is difficult to flow into the through-hole where a diameter of a through-hole for connecting between a pixel electrode and a source electrode is reduced.;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. |
| 主权项 |
1. 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 formed on the interlayer insulating film, the pixel electrode having a slit,a through-hole formed in the organic passivation film and the interlayer insulating film, anda source electrode electrically conducted to the pixel electrode via the through-hole; a counter substrate having a black matrix formed thereon; and liquid crystal sandwiched between the TFT substrate and the counter substrate, wherein, where the through-hole formed in the organic passivation film assumes 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, the top face having a diameter larger than that of the bottom face, the through-hole having a depth of D,
a taper angle at a depth of D/2 of the through-hole is equal to or more than 50 degrees, and wherein 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. |
