Liquid crystal panel having a high aperture ratio and light- shielded channels

摘要

An objective of this invention is to provide a display improved in its brightness by increasing its aperture ratio while preventing a malfunction of TFTs due to incidence of rays from an external light on a back channel of the TFTs. This invention provides a liquid-crystal panel comprising (a) a thin-film transistor substrate comprising a transparent insulating substrate on which thin-film transistors and pixel electrodes are formed, (b) a counter substrate comprising a transparent insulating substrate on which a counter electrode is formed, and (c) a liquid crystal material sandwiched between the thin-film transistor substrate and the counter substrate, wherein each of the pixels partitioned with a plurality of scanning lines and a plurality of signal lines orthogonal to the scanning lines comprises at least one of the thin-film transistors and the pixel electrodes controlled by the thin-film transistors, characterized in that each pixel comprises a color-filter layer formed on the insulating substrate; a light-shielding film made of metal formed on the color-filter layer, covering a channel between source and drain electrodes of the thin-film transistor; and the pixel electrode formed on the color-filter layer covering the whole surface of the pixel area.