Patent ID: 8031280
Filing Date: 2011-10-04
Classification: G02F

Abstract:
1. A liquid crystal display device, comprising: a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate; the liquid crystal display device having a plurality of picture element regions; wherein: the first substrate includes a picture element electrode provided on the side of the liquid crystal layer, the picture element electrode being provided in each of the plurality of picture element regions, and a switching element electrically connected to the picture element electrode; the second substrate includes a counter electrode opposing the picture element electrode with the liquid crystal layer interposed therebetween; and in each of the plurality of picture element regions, the picture element electrode includes a solid portion including a plurality of unit solid portions; and the liquid crystal layer is in a vertical orientation state when no voltage is applied between the picture element electrode and the counter electrode, and when a voltage is applied between the picture element electrode and the counter electrode, forms a liquid crystal domain taking a radially-inclined orientation in a region corresponding to each of the plurality of unit solid portions by an oblique electric field produced in the vicinity of each of the plurality of unit solid portions of the picture element electrode; the liquid crystal display device further comprising, in each of the plurality of picture element regions, a storage capacitor connected electrically in parallel to a liquid crystal capacitor which includes the picture element electrode, the counter electrode, and the liquid crystal layer; wherein: in each of the plurality of picture element regions, the first substrate has an area where no solid portion of the picture element electrode is provided; at least a part of the storage capacitor is located in the area of the first substrate where no solid portion is provided; the switching element is a thin film transistor; the storage capacitor includes a storage capacitor line, a storage capacitor electrode opposing the storage capacitor line and electrically connected to a drain electrode of the thin film transistor, and a first insulating layer provided between the storage capacitor line and the storage capacitor electrode; the first substrate further includes a second insulating layer for covering at least the thin film transistor and the storage capacitor electrode; the picture element electrode is provided on the second insulating layer; the second insulating layer is formed of a resin material; and the second insulating layer has a thickness of 1 μm or greater.