Image-pickup device and display apparatus

A display apparatus comprising:

• image display elements that are disposed in a matrix, and image-pickup devices that are attached to the image display elements, the image-pickup devices including a plurality of image generating pixels, each including a photoelectric conversion element that convert light into electric charge, storage capacitors that store the electric charge which the photoelectric conversion elements have obtained by conversion, reset means for discharging the electric charge in the storage capacitors, and amplifying thin-film transistors that receive, amplify, and output the electric charge stored in the storage capacitors, characterized in that source electrodes of the amplifying thin-film transistors are connected to a power-source supplying line, gate electrodes of the amplifying thin-film transistors are connected to the storage capacitors, and the amplifying thin-film transistors form source follower circuits, and characterized in that at least the photoelectric conversion elements, the storage capacitors, and the amplifying thin-film transistors are integrated, and disposed in correspondence with the image display elements, and further wherein one signal line provides both a row reset signal and a row selection signal for each of a plurality of adjacent rows and further wherein the image generating pixels are arranged such that a group of a plurality of conductive lines are formed between adjacent image generating pixels and contact detecting elements such that at least one conductive line of each group of lines is connected to an image generating pixel and a plurality of the conductive lines are connected to each contact detecting element.