A coordinates input device includes: a liquid crystal sheet comprising a conductive layer, a transparent high electric resistant layer, a liquid crystal-dispersed polymer layer, and a transparent insulating layer, all of which are sequentially laminated on a board; and a tablet comprising a Y-axis coordinate resistant sheet, a pressure sensitive sheet, an electrode sheet, a pressure sensitive sheet, an X-axis coordinates resistant sheet, and a flexible film for protection, all of which are sequentially laminated on a base. The Y-axis coordinates resistant sheet and the X-axis coordinates resistant sheet are connected to a detecting circuit for detecting coordinates indicated by a coordinates indicator.
A touch-sensitive display is made by incorporating a pressure dependent resistive polymer composite into the polymer networks, which are components of the electro-optical pixels. Examples are PDLC, electrophoretic displays, polymer dispersed guest/host systems and other polymer dispersed LC devices.
A coordinate input apparatus operable with any one of a conductor such as a finger and a non-conductor such as a pen without damaged operability is provided. Furthermore, in order to miniaturize the apparatus and reduce the thickness thereof, in an electrostatic capacitive detection section having a resin sheet and a resist film, a pressure-sensing detection section having a resin sheet, and a substrate, through-holes penetrating from the surface of the resist film to the backside of the substrate are formed. By filling these through-holes with a conductive material, an X-direction-detection electrode is connected to the substrate while an Y-direction-detection electrode is connected to the substrate.
An electrically erasable writing surface is provided. The writing surface includes a bistable display layer that responds to electrical and mechanical inputs. A touch pad is located above or below the display layer. The writing surface facilitates writing complex characters and increases accuracy by displaying a user input created by a passive stylus.
