Liquid crystal display device and substrate to be used for liquid crystal display device, and methods for producing the same

摘要

It is intended to facilitate optimization of the configuration and distribution density of columnar spacers for realizing a liquid crystal display device having reduced low-temperature voids, lower bulging, and pressure-induced unevenness. A method of producing a substrate for a liquid crystal display device includes the steps of: providing a sample substrate; forming a columnar spacing structure sample on the sample substrate, the columnar spacing structure having at least one resin layer; determining a spring modulus k₀(mN/mum) of the columnar spacing structure sample and a cross-sectional area Sps₀ of a smallest portion of the columnar spacing structure sample, and calculating a spring modulus Kps(=k₀/Sps₀) of the columnar spacing structure sample per unit area; and with respect to an area S of a display region of the liquid crystal display device, a cross-sectional area Sps of a smallest portion of a columnar spacing structure to be formed on the substrate for the liquid crystal display device, and a number n of columnar spacing structures in the display region, prescribing the number n of columnar spacing structures and the cross-sectional area Sps of the smallest portion so that a spring modulus Kpt per unit area of display region, defined as Kpsx(Spsxn/S), is within a range of no less than 0.00008 mN/mum³ and no more than 0.00237 mN/mum³.