Patent ID: 8908116

Claim:
A liquid crystal display device comprising a first substrate and a second substrate which is disposed to be opposed to the first substrate across a liquid crystal layer, the first substrate including drain lines extending in a first direction and arranged in a second direction; gate lines extending in the second direction and arranged in the first direction; thin-film transistors that output visual signals from the drain lines to pixel electrodes in sync with scan signals from the gate lines; and an organic film that is formed between each of the thin-film transistors and each of the pixel electrodes, wherein the organic film has a contact hole for electrical connection between a source electrode of the each thin-film transistor and the each pixel electrode, wherein a layer underlying the organic film includes a lowermost plane and an uppermost plane extending substantially in parallel to a plane of the first substrate, the uppermost plane being farther from the first substrate than the lowermost plane, and a single step extending between the uppermost plane and the lowermost plane, wherein the organic film has an edge portion which forms the contact hole, and the edge portion has an end portion which is in contact with the layer underlying the organic film, wherein the end portion of the organic film lies on the lowermost plane of the layer underlying the organic film, and wherein a sidewall part of the contact hole which is formed in the organic film is formed to have a taper angle of 60 degrees or larger.