| 摘要 |
<p>PURPOSE:To avoid deterioration of display at a display part by attaching a plastic resin having a melting point lower than that of a substrate to said substrate and forming an inconspicuous spacer with no contact with the upper substrate of a key input part. CONSTITUTION:The spacers provided to the upper and lower substrates are easily turned into hemispherical shapes. When light is irradiated on the hemisphere from a single direction, the reflection of the light is visible partly on the spacer with other parts shown dark respectively. In this case, a reflection factor r'' is equal to 4.368% on the spacer surface (a) and then to 4.109% on the surface (b). This reflected light is visible on the surface (a) through a spacer 11 and reflection factor 0.098% of the upper substrate 1a and then through the air and reflection factor 6.016% of the substrate 1a on the surface (b). Therefore, the partial reflected light is more inconspicuous on the spacer surface. Thus the spacer is formed on the lower substrate and has no contact with the upper substrate in a non-input mode.</p> |
