13. An apparatus according to claim 1, wherein said tablet has a predetermined coordinate position detection precision and comprises: a pressure-sensitive tablet mechanism which comprises: an upper film having a transparent resistor film deposited on a lower surface of a polymer material base, and conductive electrodes arranged thereon, a lower film having a transparent resistor film deposited on an upper surface of a polymer material base, and conductive electrode arranged thereon, and a spacer sandwiched between said upper and lower films, to separate said upper and lower films; and a liquid-crystal display arranged on the lower surface of said lower film.
13. An apparatus according to claim 1, wherein said tablet has a predetermined coordinate position detection precision and comprises: a pressure-sensitive tablet mechanism which comprises: an upper film having a transparent resistor film deposited on a lower surface of a polymer material base, and conductive electrodes arranged thereon, a lower film having a transparent resistor film deposited on an upper surface of a polymer material base, and conductive electrode arranged thereon, and a spacer sandwiched between said upper and lower films, to separate said upper and lower films; and a liquid-crystal display arranged on the lower surface of said lower film. 15. An apparatus according to claim 13, wherein said liquid-crystal display is designed so that the size of each display pixel and the pixel density of said liquid-crystal display are substantially equal to the coordinate position detection precision of said pressure-sensitive tablet mechanism.