| 摘要 |
PURPOSE:To obtain a display element to be written at a high speed in spite of a low power light source by irradiating light to a coloring part and a display body consisting of a film adhered to the coloring part and having a photoelectric effect. CONSTITUTION:A thin film of amorphous Si is used as a film 3 having the photoelectric effect and ultraviolet rays 7 are irradiated from the electrode 4 side by using a mercury lamp. An ITO thin film transmitting ultraviolet rays and visual rays is used as the electrode 4 and quartz glass transmitting ultraviolet rays is used as a substrate 6. The ultraviolet rays 7 are transmitted through the substrate 6 and the electrode 4 and irradiating to the film 3 having the photoelectric effect electrons are excited and supplied to the coloring layer, the color of the coloring layer 1 is changed and coloring of blue is confirmed. The ultraviolet rays 7 can be also irradiated from the electrode 5 side. When negative and positive potential is applied to the electrode 4 on the coloring layer side and the electrode 3 on the ion feeding layer side respectively at a degree preventing the coloring layer from coloring due to the energy of the electric field, coloring of blue can be confirmed even if ultraviolet rays of low intensity is irradiated. |
