Phosphor Products Company Limited

Other

Smiths Industries Plc

Ti Corporate Services Limited

Peter John Smith

Peter H Sutcliffe

David A Levien

William R Graham

Michael A Pym

Apparatus and method for receiving and processing a bet

A switch/display unit comprises a dot matrix display, having two sets of elongate electrodes, one set being inclined to the other, these sets being applied to opposite sides of a display medium. A transparent dielectric panel is superimposed in front of the display, so that the first set of electrodes, which are formed from a transparent conductive material abut the rear surface of the dielectric panel. A transparent conductive layer is formed in front of the dielectric panel, so that it will capacitively couple electrodes of the first set of electrodes with other electrodes of the first set of electrodes or other electrodes on the rear surface of the dielectric panel. This capacitive coupling may be varied by touching or moving the conductive layer. By applying read pulses to one of the sets of electrodes that are capacitively coupled via the conductive coating and sensing the pulses transmitted to the other electrodes, actuation of the switch can be detected. Circuitry is also provided to apply display control pulses to the first and second sets of the elongate electrodes, so as to provide a display which may change in response to actuation of the switch. Several such switch/display units may be combined into an array, utilizing a common dielectric panel and other components.

Switch/display units

A display device includes a layer of electroluminescent material which is capable of conducting electric current. The electroluminescent material is sandwiched between a pair of electrodes to which a voltage is to be applied to excite the electroluminescent material to luminescence. The display device is manufactured by disposing on an assembly comprising a substrate with one of the said electrodes thereon, two masks in which are formed aligned apertures defining a region in which the electroluminescent material is to be provided. The electroluminescent material is disposed in the apertures, and, after that material has solidified one of the masks is removed, the other of the electrodes then being formed on the exposed surface of the electroluminescent material and within slots in the remaining mask and the mask is removed.

Deposition of electroluminescent material through superimposed dual masks

Growing community of inventors

Wimborne, United Kingdom

Peter John Smith