PURPOSE: To improve display quality by preventing an increase in the resistance of signal bus lines.
CONSTITUTION: The surface on the liquid crystal side of one liquid crystal display substrate of the transparent substrates arranged to face each other via a liquid crystal has the signal bus lines 2, scanning bus lines 10, plural pixel electrodes 4 and thin-film semiconductor elements corresponding to the respective pixel electrodes 4. The voltages applied to the signal lines 2 are applied to the pixel electrodes 4 via the thin-film semiconductor elements which are turned on by the signals from the scanning bus lines 10. The signal bus lines 2 and the pixel electrodes 4 constitute a first layer structure formed of ITO films. Semiconductor layers constituting the thin-film semiconductor elements and insulating films laminated on these semiconductor layers constitute a second layer structure formed across at least a part of the signal bus lines 2 and the pixel electrodes 4 and between these lines and electrodes. The scanning bus line 10 constitute a third layer structure formed to cover the insulating films constituting the semiconductor elements. The liquid crystal display substrate having such structure is formed by laminating conductive layers of the resistance lower than the resistance of the ITO films on these ITO films of the signal bus lines 2.
HIROSHIMA MINORU
YANAI MASAHIRO
KOZAI KIYAO
HORII JUICHI
HASHIMOTO YUICHI
