Patent ID: 7791676
Filing Date: 2010-09-07
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 switching devices electrically connected to the picture element electrodes; the second substrate includes a counter electrode opposing the picture element electrodes with the liquid crystal layer interposed therebetween; and in each of a plurality of the picture element regions, the picture element electrode includes a solid area including a plurality of unit solid areas; and the liquid crystal layer is in a vertical alignment 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 areas by an oblique electric field produced in the vicinity of each of the plurality of unit solid areas of the picture element electrode; the liquid crystal display device further comprising, in each of the plurality of picture element regions, a storage capacitance connected electrically in parallel to a liquid crystal capacitance 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 area of the picture element electrode is provided; and at least a part of the storage capacitance is located in the area of the first substrate where no solid area is provided, and wherein a storage capacitor line extends in a direction such that a central elongated portion corresponding to a central portion of at least part of the storage capacitor line is aligned in the area where no solid area is provided so that the central elongated portion of the storage capacitor line is not aligned to overlap with any significant parts of the unit solid areas, wherein the switching device is a thin film transistor, wherein the storage capacitance includes a storage capacitance line, a storage electrode opposing the storage capacitance line and electrically connected to a drain electrode of the thin film transistor, and a first insulating layer provided between the storage capacitance line and the storage electrode, wherein the first substrate includes a scanning line electrically connected to a gate electrode of the thin film transistor and a signal line electrically connected to a source electrode of the thin film transistor, the storage capacitance line includes at least one line stem extending generally parallel to the scanning line and a line branch branched from the at least one line stem; and the storage electrode includes at least one electrode stem opposing the at least one line stem with the first insulating layer interposed therebetween and an electrode branch branched from the at least one electrode stem.