LIQUID CRYSTAL DISPLAY DEVICE AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To drastically improve picture display performance such as brightness enhancement by improving TFT characteristics even though the deterioration of display performance especially that of brightness is caused by the reduction of a pixel electrode region resulting from the elongation of a channel length L required for obtaining necessary TFT(thin film transistor) performance (enlargement of a TFT forming region) since the current controllability of a switching element is largely restricted by the construction of a channel part (generally L and a channel width W) especially by the W in the conventional configuration of a liquid crystal display device. SOLUTION: The TFT characteristics are improved without enlargement of the area of the TFT forming region by forming a transparent insulating face for the TFT forming region into a recessed shape, thus the liquid crystal display device is improved in performance such as brightness.