A push-button switch member which utilizes light energy without any loss for
back-lighting
on a display section and which realizes the back-lightening to the display section
with an even luminance while suppressing power consumption and having high visibility
and thin thickness. The push-button switch member includes a key-top portion and
a cover base member which is provided at a predetermined portion of the key-top
portion and which is adapted to be mounted to the circuit board. The key-top portion
includes a display section for displaying a switching function and an area emitter
which is integrally formed with the display section. The area emitter member is
provided with a light emitting layer disposed between a base electrode and a transparent
electrode, which is disposed so as to oppose the base electrode. The transparent
electrode is arranged to be contacted to the display section and is formed of a
transparent conductive polymer.