Abstract: An organic semiconductor film that can be used for an electron device, for example, particularly can be used for organic TFTs so as to allow the TFTs to have advanced performance, is provided and a manufacturing method therefor is provided. For instance, the organic semiconductor film contains the organic conductive high polymer compound such as polythiophene represented by the below formula (I). The organic semiconductor film is formed by forming a solution in a thin film form, the solution showing two or more spectral peaks (spectral state B) in a wavelength region of 300 to 800 nm by measurement using a visible and ultraviolet absorption spectral method; and drying the solution formed in the thin film form. Alternatively, the organic semiconductor film can be formed by the method in which the organic conductive high polymer compound has a molecular weight distribution range Mw/Mn from 1.00 to 1.85, obtained by dividing a weight-average molecular weight Mw by a number-average molecular weight Mn.

Abstract: An electronic paper having a display unit formed of a flexible sheet. The electronic paper comprises the display unit composed of a light-emitting device and a switching device and a drive unit composed of a drive circuit disposed at one edge of the display unit. The light-emitting device and the switching device both operate at low operating frequencies and are made of a flexible organic semiconductor. Since the hardness of the drive unit can be high, a semiconductor device having a high operating frequency such as a C-MOS is provided to the drive unit. Though the switching time is relatively long, the data setting time can be short. As a result, a sharp image can be produced.

Abstract: An electrophotographic apparatus capable of editing a copy picture image includes a document table for mounting a document thereon and a document irradiator for irradiating a surface of the document, and an optical system for focusing the reflected image from the surface of the document onto a photosensitive body so as to produce a latent image thereon. A photosensitive body irradiator is further provided for directly and selectively irradiating at least a part of the photosensitive body to erase a part of the latent image on the irradiated part of the photosensitive body. The resultant latent image is then developed in the usual fashion to form a visible image on a plain sheet. A position and function selector is provided separately from the document table and includes a tablet for first mounting the document thereon prior to the document being mounted on the document table and further includes a pen arranged such that a position on the tablet is detected by an access of the pen.