Patent ID: 6141078
Filing Date: 2000-10-31
Classification: G02F

Abstract:
An in-plane switching liquid crystal display apparatus comprising:a TFT array substrate on which there are formed on a substrate scanning signal lines, image signal lines, thin film transistors formed at each intersection of the scanning signal lines and image signal lines, liquid crystal driving electrodes connected to the thin film transistors, common electrodes formed such that at least a part of them are opposing the liquid crystal driving electrodes, and common signal lines for writing in signals to the common electrodes;a counter substrate which opposes the TFT array substrate;a plurality of primary spacers for maintaining a constant gap between the TFT array substrate and the opposing substrate;a plurality of secondary spacers for maintaining a constant gap between peripheral portions of the TFT array substrate and the counter substrate;a sealing agent which is interposed in the gap between the TFT array substrate and counter substrate together with the secondary spacers and which adhere the TFT array substrate and counter substrate at the peripheral portions; anda liquid crystal layer pinched and held between the array substrate and counter substrate,the liquid crystal layer presenting birefringence effects,wherein an in-plane retardation of the display apparatus (.DELTA.n).multidot.(d.sub.max -d.sub.min) is not less than 0 nm and not more than 20 nm in case the largest gap of gaps between the liquid crystal driving electrodes and opposing substrates within the display surface of the liquid crystal display is denoted d.sub.max, and the smallest gap within the display surface of the liquid crystal display dmin.