Patent ID: 7385666

Claim:
A liquid crystal display device comprising: a pair of substrates which are arranged to face each other with liquid crystal therebetween; a thin film transistor formed on one substrate in each pixel and the thin film transistor having one semiconductor layer; columnar spacers formed on another substrate; and one or a plurality of intermediate semiconductor layer which are spaced apart from the one semiconductor layer of the thin film transistor in a plane view, the columnar spacers include at least a columnar spacer which is in contact with a liquid-crystal side surface of the one substrate and remaining columnar spacers which are not connected with the liquid-crystal side surface of the one substrate, each of the columnar spacers is arranged on one of gate signal lines, the gate signal lines driving the thin film transistors of the respective pixel, the one or each of the plurality of intermediate semiconductor layers is formed over the one of gate signal lines and under the at least one columnar spacer which is in contact with a liquid-crystal side surface of the one substrate.