Liquid crystal display device

摘要

In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

主权项

1. A display device comprising:
a first substrate including a first electrode, an organic film formed over the first electrode, and a TFT electrically connected to the first electrode, wherein a through hole is formed in the organic film, and arranged over the first electrode, wherein a diameter of an upper portion of the through hole is greater than a diameter of a lower portion of the through hole, and wherein a taper angle of the upper portion of the through hole is smaller than a taper angle of the lower portion which is arranged between the upper portion and the first substrate.