Patent ID: 8199311
Filing Date: 2012-06-12
Classification: G02F

Abstract:
1. A method of manufacturing liquid crystal display (LCD) devices, comprising: determining the size of a mother substrate having a major axis and a minor axis, said determining the size of the mother substrate comprising: selecting characteristics of a plurality of LCD panels, said characteristics including: a diagonal length, an aspect ratio of a length of the panel in a first direction to a length of the panel in a second direction different from said first direction, and an operating mode; choosing a number of a plurality of LCD panels to provide on the mother substrate; choosing the alignment of the first direction of the LCD panels relative to the major axis of the mother substrate; choosing a size of a dummy region, said dummy region being the region between a process key center and an exposure process region; choosing a first margin of the mother substrate, said margin including: choosing a second margin of the mother substrate, said margin including: determining the length of the major axis of the mother substrate and the minor axis of the mother substrate based on said LCD panel characteristics, the number of LCD panels to provide on the substrate, the alignment of LCD panels relative to the mother substrate, the first and second margins, and said size of the dummy region, such that a substrate efficiency of 90% or more is achieved in the major and minor axis directions for the mother substrate, wherein a substrate efficiency calculation of 100% is based on a total dummy region width of 30 mm or less and a margin of 0.3 to 4%; providing the mother substrate of which the lengths of the major and minor axes are determined; and forming the determined number of the plurality of LCD panels on the mother substrate; and wherein the size of the mother substrate is determined to be 1950 mm by 2250 mm.