SUBSTRATE FOR DISPLAY PANEL, AND DISPLAY DEVICE

摘要

Disclosed is a substrate for a display panel, which comprises, in a pixel, a PIN diode (21) that makes currents of different values flow in accordance with the amounts of light received, a first inorganic insulating film (11) that is formed on the PIN diode (21), wiring lines (12c, 12d) that are formed on the first inorganic insulating film (11) and electrically connected to the PIN diode (21), an organic insulating film (14) that is formed on the wiring lines (12c, 12d), a transparent pixel electrode (15) that is formed on the organic insulating film (14), and a transparent cover electrode (13) that is interposed between the organic insulating film (14) and the first inorganic insulating film (11) and formed so as to cover at least a part of the I layer (8d) of the PIN diode (21). Consequently, deterioration of the photocurrent characteristics can be suppressed even in a configuration using the organic insulating film (14), and thus a substrate (1) for a display panel and a liquid crystal display device (19) each comprising the PIN diode (21) having improved reliability can be achieved.