Patent ID: 7659960
Filing Date: 2010-02-09
Classification: G02F

Abstract:
1. An LCD device comprising: a first substrate that is an array substrate having a plurality of scanning lines, a plurality of signal lines perpendicularly crossing the scanning lines, pixel electrodes each arranged on a pixel dot, and switching elements each disposed in the vicinity of a crossing of the scanning and signal lines; a second substrate; a liquid-crystal layer formed of a liquid crystal material and sandwiched between the substrates; spherical spacers arranged between the substrates; and a plurality of contact holes, which are perforating an underlying layer for the pixel electrodes and arranged on a surface of the array substrate contacting the liquid-crystal layer and each of which electrically connects a pixel electrode on said surface of the array substrate to a terminal of the switching element, wherein: each of the spherical spacers is placed in a respective one of the contact holes; the spherical spacers are evenly distributed by a distribution density of one in 2 to 8 pixel dots; the sectional area through the center of each of the spherical spacers is smaller than the area of the bottom face of the associated contact hole; and the contact hole occupies between 60 and 70% of an area of a pixel-electrode extension overlapping a storage capacitor line.