An electro-tactile panel (ETP) apparatus for a display panel is disclosed.
The ETP apparatus is composed of three major parts: a controller, a
panel, and a holder. The panel consists of four layer made of transparent
material. The first layer is an insulating substrate, the second layer is
a conductive layer formed of a plurality of horizontal electrodes on the
first layer. The third layer is an insulating layer having holes formed
therein, which corresponding to the electrodes on the second layer. The
fourth layer is a conductive layer formed of a plurality of vertical
electrodes on the third layer. The panel is attached to the display panel
by means of the holder apparatus. The electro-tactile signal and cursor
position is process by the controller when the skin touches the panel so
that some positions of the vertical electrodes and horizontal electrodes
are electrically connected through the holes.