PURPOSE: A method and a system for generating mesh for numerical analysis for a liquid crystal display device are provided to generate tetra meshes for the structural designing and numerical analysis for a liquid crystal display device of a certain structure. CONSTITUTION: A method for generating mesh for numerical analysis for a liquid crystal display device includes the steps of generating a stacking structure of material areas forming a device on a computer from mask layout information(S110), generating overlapping areas of polygonal objects forming the mask layout by new polygons together with polygons for the remaining areas(S120), generating triangular meshes by dividing inner areas of the respective polygons into a plurality of triangular areas with respect to plane areas formed of the polygons(S130,S140), and extending the triangular meshes in the height direction of the stacking structure for generating tetra meshes formed of the combination of triangular poles formed of three tetra meshes(S150).
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