| 摘要 |
<p>PURPOSE:To improve the wear resistance of a transparent flat-switch so as to stably operate it by dispersing and fixing insulating grains of microscopic shape in one of mutually facing electrode-sheets, and forming a transparent resistance-film on the other thereof in such a condition that the thickness of the film may be unequal and an electrode may be partly exposed from the film. CONSTITUTION:Insulating micro-dot spacers 31 of microscopic shape are dispersed and fixed or a fixed electrode-sheet 32. A transparent resistance-film 25 is formed also on a movable electrode-sheet 26 in such a condition that the thickness of the film may be unequal and an electrode may be partly exposed from the film. When in regard to the above description the film 25 contacting each of the spacers 31 is formed in a thickness of not more than 1 micrometer, an excellent insulating condition can be kept in such a condition that the film is not pressed by a writing instrument P. When the film on the other hand has been pressed by the writing instrument, it causes its tunnel effect, its Schottky effect and its coherer effect so as to realize its accurately electrified condition, and also an electrode 22 can therefore be sufficiently protected by the film 25. This can improve the wear resistance of a transparent flat- switch to obtain the switch of reliable and stable operation, and of large area at low cost.</p> |
