a method of manufacturing an in - plane switching liquid crystal display apparatus which includes forming on a tft array substrate , a plurality of scanning signal lines , a plurality of image signal lines each crossing the scanning signal lines , thin film transistors at each intersection of the scanning signal lines and image signal lines , liquid crystal driving electrodes opposing the liquid crystal driving electrodes , and common signal lines connected to the common electrodes . further , the method includes opposing a counter substrate to the tft array substrate , interposing a plurality of spacers in a gap between the tft array substrate and the counter substrate , and interposing a sealing agent in the gap between the tft array substrate and the counter substrate so as to adhere the tft array substrate and the counter substrate at peripheral portions thereof . in addition , a liquid crystal layer is pinched and held between the array substrate and the counter substrate and which presents birefringence effects , and a manufactured in - plane switching liquid crystal display apparatus with a difference in transmittance of more than 5 % for green light of approximately 544 nm wavelength in a displaying area of the in - plane switching liquid crystal display apparatus is rejected .